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Author SHA1 Message Date
github-actions[bot]
4cf868a769 chore: release packages (#389)
Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
2025-12-29 17:14:53 +08:00
YHH
afdeb00b4d feat(server): 添加可插拔速率限制系统 | add pluggable rate limiting system (#388)
* feat(server): 添加可插拔速率限制系统 | add pluggable rate limiting system

- 新增令牌桶策略 (TokenBucketStrategy) - 推荐用于一般场景
- 新增滑动窗口策略 (SlidingWindowStrategy) - 精确跟踪
- 新增固定窗口策略 (FixedWindowStrategy) - 简单高效
- 新增房间速率限制 mixin (withRateLimit)
- 新增速率限制装饰器 (@rateLimit, @noRateLimit)
- 新增按消息类型限流装饰器 (@rateLimitMessage, @noRateLimitMessage)
- 支持与认证系统组合使用
- 添加中英文文档
- 导出路径: @esengine/server/ratelimit

* docs: 更新 README 添加新模块 | update README with new modules

- 添加程序化生成 (procgen) 模块
- 添加 RPC 框架模块
- 添加游戏服务器 (server) 模块
- 添加事务系统 (transaction) 模块
- 添加世界流送 (world-streaming) 模块
- 更新网络模块描述
- 更新项目结构目录
2025-12-29 17:12:54 +08:00
github-actions[bot]
764ce67742 chore: release packages (#387)
Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
2025-12-29 16:12:03 +08:00
YHH
61a13baca2 feat(server): 添加可插拔认证系统 | add pluggable authentication system (#386)
* feat(server): 添加可插拔认证系统 | add pluggable authentication system

- 新增 JWT 认证提供者 (createJwtAuthProvider)
- 新增 Session 认证提供者 (createSessionAuthProvider)
- 新增服务器认证 mixin (withAuth)
- 新增房间认证 mixin (withRoomAuth)
- 新增认证装饰器 (@requireAuth, @requireRole)
- 新增测试工具 (MockAuthProvider)
- 新增中英文文档
- 导出路径: @esengine/server/auth, @esengine/server/auth/testing

* fix(server): 使用加密安全的随机数生成 session ID | use crypto-secure random for session ID
2025-12-29 16:10:09 +08:00
github-actions[bot]
1cfa64aa0f chore: release packages (#385)
Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
2025-12-29 15:04:07 +08:00
YHH
3b978384c7 feat(framework): server testing utils, transaction storage simplify, pathfinding tests (#384)
## Server Testing Utils
- Add TestServer, TestClient, MockRoom for unit testing
- Export testing utilities from @esengine/server/testing

## Transaction Storage (BREAKING)
- Simplify RedisStorage/MongoStorage to factory pattern only
- Remove DI client injection option
- Add lazy connection and Symbol.asyncDispose support
- Add 161 unit tests with full coverage

## Pathfinding Tests
- Add 150 unit tests covering all components
- BinaryHeap, Heuristics, AStarPathfinder, GridMap, NavMesh, PathSmoother

## Docs
- Update storage.md for new factory pattern API
2025-12-29 15:02:13 +08:00
YHH
10c3891abd docs: 添加缺失的侧边栏导航项 | add missing sidebar items (#383)
- RPC: 添加 server, client, codec 页面
- Network: 添加 prediction, aoi, delta 页面
- Transaction: 添加完整模块导航
- Changelog: 添加 transaction, rpc 链接
2025-12-29 11:29:42 +08:00
github-actions[bot]
18af48a0fc chore: release packages (#382)
Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
2025-12-29 11:08:46 +08:00
YHH
d4cef828e1 feat(transaction): 添加游戏事务系统 | add game transaction system (#381)
- TransactionManager/TransactionContext 事务管理
- MemoryStorage/RedisStorage/MongoStorage 存储实现
- CurrencyOperation/InventoryOperation/TradeOperation 内置操作
- SagaOrchestrator 分布式 Saga 编排
- withTransactions() Room 集成
- 完整中英文文档
2025-12-29 10:54:00 +08:00
105 changed files with 21466 additions and 31 deletions

View File

@@ -49,7 +49,12 @@ npm install @esengine/ecs-framework
| **Timer** | Timer and cooldown systems | No |
| **Spatial** | Spatial indexing and queries (QuadTree, Grid) | No |
| **Pathfinding** | A* and navigation mesh pathfinding | No |
| **Network** | Client/server networking with TSRPC | No |
| **Procgen** | Procedural generation (noise, random, sampling) | No |
| **RPC** | High-performance RPC communication framework | No |
| **Server** | Game server framework with rooms, auth, rate limiting | No |
| **Network** | Client networking with prediction, AOI, delta compression | No |
| **Transaction** | Game transaction system with Redis/Memory storage | No |
| **World Streaming** | Open world chunk loading and streaming | No |
> All framework modules can be used standalone with any rendering engine.
@@ -199,7 +204,12 @@ npm install @esengine/fsm # State machines
npm install @esengine/timer # Timers & cooldowns
npm install @esengine/spatial # Spatial indexing
npm install @esengine/pathfinding # Pathfinding
npm install @esengine/network # Networking
npm install @esengine/procgen # Procedural generation
npm install @esengine/rpc # RPC framework
npm install @esengine/server # Game server
npm install @esengine/network # Client networking
npm install @esengine/transaction # Transaction system
npm install @esengine/world-streaming # World streaming
```
### ESEngine Runtime (Optional)
@@ -235,7 +245,11 @@ esengine/
│ │ ├── spatial/ # Spatial queries
│ │ ├── pathfinding/ # Pathfinding
│ │ ├── procgen/ # Procedural generation
│ │ ── network/ # Networking
│ │ ── rpc/ # RPC framework
│ │ ├── server/ # Game server
│ │ ├── network/ # Client networking
│ │ ├── transaction/ # Transaction system
│ │ └── world-streaming/ # World streaming
│ │
│ ├── engine/ # ESEngine runtime
│ ├── rendering/ # Rendering modules

View File

@@ -49,7 +49,12 @@ npm install @esengine/ecs-framework
| **定时器** | 定时器和冷却系统 | 否 |
| **空间索引** | 空间查询(四叉树、网格) | 否 |
| **寻路** | A* 和导航网格寻路 | 否 |
| **网络** | 客户端/服务端网络通信 (TSRPC) | 否 |
| **程序化生成** | 噪声、随机、采样等生成算法 | 否 |
| **RPC** | 高性能 RPC 通信框架 | 否 |
| **服务端** | 游戏服务器框架,支持房间、认证、速率限制 | 否 |
| **网络** | 客户端网络支持预测、AOI、增量压缩 | 否 |
| **事务系统** | 游戏事务系统,支持 Redis/内存存储 | 否 |
| **世界流送** | 开放世界分块加载和流送 | 否 |
> 所有框架模块都可以独立使用,无需依赖特定渲染引擎。
@@ -199,7 +204,12 @@ npm install @esengine/fsm # 状态机
npm install @esengine/timer # 定时器和冷却
npm install @esengine/spatial # 空间索引
npm install @esengine/pathfinding # 寻路
npm install @esengine/network # 网络
npm install @esengine/procgen # 程序化生成
npm install @esengine/rpc # RPC 框架
npm install @esengine/server # 游戏服务器
npm install @esengine/network # 客户端网络
npm install @esengine/transaction # 事务系统
npm install @esengine/world-streaming # 世界流送
```
### ESEngine 运行时(可选)
@@ -235,7 +245,11 @@ esengine/
│ │ ├── spatial/ # 空间查询
│ │ ├── pathfinding/ # 寻路
│ │ ├── procgen/ # 程序化生成
│ │ ── network/ # 网络
│ │ ── rpc/ # RPC 框架
│ │ ├── server/ # 游戏服务器
│ │ ├── network/ # 客户端网络
│ │ ├── transaction/ # 事务系统
│ │ └── world-streaming/ # 世界流送
│ │
│ ├── engine/ # ESEngine 运行时
│ ├── rendering/ # 渲染模块

View File

@@ -255,6 +255,9 @@ export default defineConfig({
translations: { en: 'RPC' },
items: [
{ label: '概述', slug: 'modules/rpc', translations: { en: 'Overview' } },
{ label: '服务端', slug: 'modules/rpc/server', translations: { en: 'Server' } },
{ label: '客户端', slug: 'modules/rpc/client', translations: { en: 'Client' } },
{ label: '编解码', slug: 'modules/rpc/codec', translations: { en: 'Codec' } },
],
},
{
@@ -264,10 +267,26 @@ export default defineConfig({
{ label: '概述', slug: 'modules/network', translations: { en: 'Overview' } },
{ label: '客户端', slug: 'modules/network/client', translations: { en: 'Client' } },
{ label: '服务器', slug: 'modules/network/server', translations: { en: 'Server' } },
{ label: '认证系统', slug: 'modules/network/auth', translations: { en: 'Authentication' } },
{ label: '速率限制', slug: 'modules/network/rate-limit', translations: { en: 'Rate Limiting' } },
{ label: '状态同步', slug: 'modules/network/sync', translations: { en: 'State Sync' } },
{ label: '客户端预测', slug: 'modules/network/prediction', translations: { en: 'Prediction' } },
{ label: 'AOI 兴趣区域', slug: 'modules/network/aoi', translations: { en: 'AOI' } },
{ label: '增量压缩', slug: 'modules/network/delta', translations: { en: 'Delta Compression' } },
{ label: 'API 参考', slug: 'modules/network/api', translations: { en: 'API Reference' } },
],
},
{
label: '事务系统',
translations: { en: 'Transaction' },
items: [
{ label: '概述', slug: 'modules/transaction', translations: { en: 'Overview' } },
{ label: '核心概念', slug: 'modules/transaction/core', translations: { en: 'Core Concepts' } },
{ label: '存储层', slug: 'modules/transaction/storage', translations: { en: 'Storage Layer' } },
{ label: '操作', slug: 'modules/transaction/operations', translations: { en: 'Operations' } },
{ label: '分布式事务', slug: 'modules/transaction/distributed', translations: { en: 'Distributed' } },
],
},
{
label: '世界流式加载',
translations: { en: 'World Streaming' },
@@ -303,6 +322,8 @@ export default defineConfig({
{ label: '@esengine/fsm', link: 'https://github.com/esengine/esengine/blob/master/packages/framework/fsm/CHANGELOG.md', attrs: { target: '_blank' } },
{ label: '@esengine/timer', link: 'https://github.com/esengine/esengine/blob/master/packages/framework/timer/CHANGELOG.md', attrs: { target: '_blank' } },
{ label: '@esengine/network', link: 'https://github.com/esengine/esengine/blob/master/packages/framework/network/CHANGELOG.md', attrs: { target: '_blank' } },
{ label: '@esengine/transaction', link: 'https://github.com/esengine/esengine/blob/master/packages/framework/transaction/CHANGELOG.md', attrs: { target: '_blank' } },
{ label: '@esengine/rpc', link: 'https://github.com/esengine/esengine/blob/master/packages/framework/rpc/CHANGELOG.md', attrs: { target: '_blank' } },
{ label: '@esengine/cli', link: 'https://github.com/esengine/esengine/blob/master/packages/tools/cli/CHANGELOG.md', attrs: { target: '_blank' } },
],
},

View File

@@ -34,6 +34,7 @@ ESEngine provides a rich set of modules that can be imported as needed.
| Module | Package | Description |
|--------|---------|-------------|
| [Network](/en/modules/network/) | `@esengine/network` | Multiplayer game networking |
| [Transaction](/en/modules/transaction/) | `@esengine/transaction` | Game transactions with distributed support |
## Installation

View File

@@ -0,0 +1,506 @@
---
title: "Authentication"
description: "Add authentication to your game server with JWT and Session providers"
---
The `@esengine/server` package includes a pluggable authentication system that supports JWT, session-based auth, and custom providers.
## Installation
Authentication is included in the server package:
```bash
npm install @esengine/server jsonwebtoken
```
> Note: `jsonwebtoken` is an optional peer dependency, required only for JWT authentication.
## Quick Start
### JWT Authentication
```typescript
import { createServer } from '@esengine/server'
import { withAuth, createJwtAuthProvider, withRoomAuth, requireAuth } from '@esengine/server/auth'
// Create JWT provider
const jwtProvider = createJwtAuthProvider({
secret: process.env.JWT_SECRET!,
expiresIn: 3600, // 1 hour
})
// Wrap server with authentication
const server = withAuth(await createServer({ port: 3000 }), {
provider: jwtProvider,
extractCredentials: (req) => {
const url = new URL(req.url ?? '', 'http://localhost')
return url.searchParams.get('token')
},
})
// Define authenticated room
class GameRoom extends withRoomAuth(Room, { requireAuth: true }) {
onJoin(player) {
console.log(`${player.user?.name} joined!`)
}
}
server.define('game', GameRoom)
await server.start()
```
## Auth Providers
### JWT Provider
Use JSON Web Tokens for stateless authentication:
```typescript
import { createJwtAuthProvider } from '@esengine/server/auth'
const jwtProvider = createJwtAuthProvider({
// Required: secret key
secret: 'your-secret-key',
// Optional: algorithm (default: HS256)
algorithm: 'HS256',
// Optional: expiration in seconds (default: 3600)
expiresIn: 3600,
// Optional: issuer for validation
issuer: 'my-game-server',
// Optional: audience for validation
audience: 'my-game-client',
// Optional: custom user extraction
getUser: async (payload) => {
// Fetch user from database
return await db.users.findById(payload.sub)
},
})
// Sign a token (for login endpoints)
const token = jwtProvider.sign({
sub: user.id,
name: user.name,
roles: ['player'],
})
// Decode without verification (for debugging)
const payload = jwtProvider.decode(token)
```
### Session Provider
Use server-side sessions for stateful authentication:
```typescript
import { createSessionAuthProvider, type ISessionStorage } from '@esengine/server/auth'
// Custom storage implementation
const storage: ISessionStorage = {
async get<T>(key: string): Promise<T | null> {
return await redis.get(key)
},
async set<T>(key: string, value: T): Promise<void> {
await redis.set(key, value)
},
async delete(key: string): Promise<boolean> {
return await redis.del(key) > 0
},
}
const sessionProvider = createSessionAuthProvider({
storage,
sessionTTL: 86400000, // 24 hours in ms
// Optional: validate user on each request
validateUser: (user) => !user.banned,
})
// Create session (for login endpoints)
const sessionId = await sessionProvider.createSession(user, {
ipAddress: req.ip,
userAgent: req.headers['user-agent'],
})
// Revoke session (for logout)
await sessionProvider.revoke(sessionId)
```
## Server Auth Mixin
The `withAuth` function wraps your server to add authentication:
```typescript
import { withAuth } from '@esengine/server/auth'
const server = withAuth(baseServer, {
// Required: auth provider
provider: jwtProvider,
// Required: extract credentials from request
extractCredentials: (req) => {
// From query string
return new URL(req.url, 'http://localhost').searchParams.get('token')
// Or from headers
// return req.headers['authorization']?.replace('Bearer ', '')
},
// Optional: handle auth failure
onAuthFailed: (conn, error) => {
console.log(`Auth failed: ${error}`)
},
})
```
### Accessing Auth Context
After authentication, the auth context is available on connections:
```typescript
import { getAuthContext } from '@esengine/server/auth'
server.onConnect = (conn) => {
const auth = getAuthContext(conn)
if (auth.isAuthenticated) {
console.log(`User ${auth.userId} connected`)
console.log(`Roles: ${auth.roles}`)
}
}
```
## Room Auth Mixin
The `withRoomAuth` function adds authentication checks to rooms:
```typescript
import { withRoomAuth, type AuthPlayer } from '@esengine/server/auth'
interface User {
id: string
name: string
roles: string[]
}
class GameRoom extends withRoomAuth<User>(Room, {
// Require authentication to join
requireAuth: true,
// Optional: require specific roles
allowedRoles: ['player', 'premium'],
// Optional: role check mode ('any' or 'all')
roleCheckMode: 'any',
}) {
// player has .auth and .user properties
onJoin(player: AuthPlayer<User>) {
console.log(`${player.user?.name} joined`)
console.log(`Is premium: ${player.auth.hasRole('premium')}`)
}
// Optional: custom auth validation
async onAuth(player: AuthPlayer<User>): Promise<boolean> {
// Additional validation logic
if (player.auth.hasRole('banned')) {
return false
}
return true
}
@onMessage('Chat')
handleChat(data: { text: string }, player: AuthPlayer<User>) {
this.broadcast('Chat', {
from: player.user?.name ?? 'Guest',
text: data.text,
})
}
}
```
### AuthPlayer Interface
Players in auth rooms have additional properties:
```typescript
interface AuthPlayer<TUser> extends Player {
// Full auth context
readonly auth: IAuthContext<TUser>
// User info (shortcut for auth.user)
readonly user: TUser | null
}
```
### Room Auth Helpers
```typescript
class GameRoom extends withRoomAuth<User>(Room) {
someMethod() {
// Get player by user ID
const player = this.getPlayerByUserId('user-123')
// Get all players with a role
const admins = this.getPlayersByRole('admin')
// Get player with auth info
const authPlayer = this.getAuthPlayer(playerId)
}
}
```
## Auth Decorators
### @requireAuth
Mark message handlers as requiring authentication:
```typescript
import { requireAuth, requireRole, onMessage } from '@esengine/server/auth'
class GameRoom extends withRoomAuth(Room) {
@requireAuth()
@onMessage('Trade')
handleTrade(data: TradeData, player: AuthPlayer) {
// Only authenticated players can trade
}
@requireAuth({ allowGuest: true })
@onMessage('Chat')
handleChat(data: ChatData, player: AuthPlayer) {
// Guests can also chat
}
}
```
### @requireRole
Require specific roles for message handlers:
```typescript
class AdminRoom extends withRoomAuth(Room) {
@requireRole('admin')
@onMessage('Ban')
handleBan(data: BanData, player: AuthPlayer) {
// Only admins can ban
}
@requireRole(['moderator', 'admin'])
@onMessage('Mute')
handleMute(data: MuteData, player: AuthPlayer) {
// Moderators OR admins can mute
}
@requireRole(['verified', 'premium'], { mode: 'all' })
@onMessage('SpecialFeature')
handleSpecial(data: any, player: AuthPlayer) {
// Requires BOTH verified AND premium roles
}
}
```
## Auth Context API
The auth context provides various methods for checking authentication state:
```typescript
interface IAuthContext<TUser> {
// Authentication state
readonly isAuthenticated: boolean
readonly user: TUser | null
readonly userId: string | null
readonly roles: ReadonlyArray<string>
readonly authenticatedAt: number | null
readonly expiresAt: number | null
// Role checking
hasRole(role: string): boolean
hasAnyRole(roles: string[]): boolean
hasAllRoles(roles: string[]): boolean
}
```
The `AuthContext` class (implementation) also provides:
```typescript
class AuthContext<TUser> implements IAuthContext<TUser> {
// Set authentication from result
setAuthenticated(result: AuthResult<TUser>): void
// Clear authentication state
clear(): void
}
```
## Testing
Use the mock auth provider for unit tests:
```typescript
import { createMockAuthProvider } from '@esengine/server/auth/testing'
// Create mock provider with preset users
const mockProvider = createMockAuthProvider({
users: [
{ id: '1', name: 'Alice', roles: ['player'] },
{ id: '2', name: 'Bob', roles: ['admin', 'player'] },
],
autoCreate: true, // Create users for unknown tokens
})
// Use in tests
const server = withAuth(testServer, {
provider: mockProvider,
extractCredentials: (req) => req.headers['x-token'],
})
// Verify with user ID as token
const result = await mockProvider.verify('1')
// result.user = { id: '1', name: 'Alice', roles: ['player'] }
// Add/remove users dynamically
mockProvider.addUser({ id: '3', name: 'Charlie', roles: ['guest'] })
mockProvider.removeUser('3')
// Revoke tokens
await mockProvider.revoke('1')
// Reset to initial state
mockProvider.clear()
```
## Error Handling
Auth errors include error codes for programmatic handling:
```typescript
type AuthErrorCode =
| 'INVALID_CREDENTIALS' // Invalid username/password
| 'INVALID_TOKEN' // Token is malformed or invalid
| 'EXPIRED_TOKEN' // Token has expired
| 'USER_NOT_FOUND' // User lookup failed
| 'ACCOUNT_DISABLED' // User account is disabled
| 'RATE_LIMITED' // Too many requests
| 'INSUFFICIENT_PERMISSIONS' // Insufficient permissions
// In your auth failure handler
const server = withAuth(baseServer, {
provider: jwtProvider,
extractCredentials,
onAuthFailed: (conn, error) => {
switch (error.errorCode) {
case 'EXPIRED_TOKEN':
conn.send('AuthError', { code: 'TOKEN_EXPIRED' })
break
case 'INVALID_TOKEN':
conn.send('AuthError', { code: 'INVALID_TOKEN' })
break
default:
conn.close()
}
},
})
```
## Complete Example
Here's a complete example with JWT authentication:
```typescript
// server.ts
import { createServer } from '@esengine/server'
import {
withAuth,
withRoomAuth,
createJwtAuthProvider,
requireAuth,
requireRole,
type AuthPlayer,
} from '@esengine/server/auth'
// Types
interface User {
id: string
name: string
roles: string[]
}
// JWT Provider
const jwtProvider = createJwtAuthProvider<User>({
secret: process.env.JWT_SECRET!,
expiresIn: 3600,
getUser: async (payload) => ({
id: payload.sub as string,
name: payload.name as string,
roles: (payload.roles as string[]) ?? [],
}),
})
// Create authenticated server
const server = withAuth(
await createServer({ port: 3000 }),
{
provider: jwtProvider,
extractCredentials: (req) => {
return new URL(req.url ?? '', 'http://localhost')
.searchParams.get('token')
},
}
)
// Game Room with auth
class GameRoom extends withRoomAuth<User>(Room, {
requireAuth: true,
allowedRoles: ['player'],
}) {
onCreate() {
console.log('Game room created')
}
onJoin(player: AuthPlayer<User>) {
console.log(`${player.user?.name} joined!`)
this.broadcast('PlayerJoined', {
id: player.id,
name: player.user?.name,
})
}
@requireAuth()
@onMessage('Move')
handleMove(data: { x: number; y: number }, player: AuthPlayer<User>) {
// Handle movement
}
@requireRole('admin')
@onMessage('Kick')
handleKick(data: { playerId: string }, player: AuthPlayer<User>) {
const target = this.getPlayer(data.playerId)
if (target) {
this.kick(target, 'Kicked by admin')
}
}
}
server.define('game', GameRoom)
await server.start()
```
## Best Practices
1. **Secure your secrets**: Never hardcode JWT secrets. Use environment variables.
2. **Set reasonable expiration**: Balance security and user experience when setting token TTL.
3. **Validate on critical actions**: Use `@requireAuth` on sensitive message handlers.
4. **Use role-based access**: Implement proper role hierarchy for admin functions.
5. **Handle token refresh**: Implement token refresh logic for long sessions.
6. **Log auth events**: Track login attempts and failures for security monitoring.
7. **Test auth flows**: Use `MockAuthProvider` to test authentication scenarios.

View File

@@ -0,0 +1,458 @@
---
title: "Rate Limiting"
description: "Protect your game server from abuse with configurable rate limiting"
---
The `@esengine/server` package includes a pluggable rate limiting system to protect against DDoS attacks, message flooding, and other abuse.
## Installation
Rate limiting is included in the server package:
```bash
npm install @esengine/server
```
## Quick Start
```typescript
import { Room, onMessage } from '@esengine/server'
import { withRateLimit, rateLimit, noRateLimit } from '@esengine/server/ratelimit'
class GameRoom extends withRateLimit(Room, {
messagesPerSecond: 10,
burstSize: 20,
onLimited: (player, type, result) => {
player.send('Error', {
code: 'RATE_LIMITED',
retryAfter: result.retryAfter,
})
},
}) {
@onMessage('Move')
handleMove(data: { x: number; y: number }, player: Player) {
// Protected by rate limit (10 msg/s default)
}
@rateLimit({ messagesPerSecond: 1 })
@onMessage('Trade')
handleTrade(data: TradeData, player: Player) {
// Stricter limit for trading
}
@noRateLimit()
@onMessage('Heartbeat')
handleHeartbeat(data: any, player: Player) {
// No rate limit for heartbeat
}
}
```
## Rate Limit Strategies
### Token Bucket (Default)
The token bucket algorithm allows burst traffic while maintaining long-term rate limits. Tokens are added at a fixed rate, and each request consumes tokens.
```typescript
import { withRateLimit } from '@esengine/server/ratelimit'
class GameRoom extends withRateLimit(Room, {
strategy: 'token-bucket',
messagesPerSecond: 10, // Refill rate
burstSize: 20, // Bucket capacity
}) { }
```
**How it works:**
```
Config: rate=10/s, burstSize=20
[0s] Bucket full: 20 tokens
[0s] 15 messages → allowed, 5 remaining
[0.5s] Refill 5 tokens → 10 tokens
[0.5s] 8 messages → allowed, 2 remaining
[0.6s] Refill 1 token → 3 tokens
[0.6s] 5 messages → 3 allowed, 2 rejected
```
**Best for:** Most general use cases, balances burst tolerance with protection.
### Sliding Window
The sliding window algorithm precisely tracks requests within a time window. More accurate than fixed window but uses slightly more memory.
```typescript
class GameRoom extends withRateLimit(Room, {
strategy: 'sliding-window',
messagesPerSecond: 10,
burstSize: 10,
}) { }
```
**Best for:** When you need precise rate limiting without burst tolerance.
### Fixed Window
The fixed window algorithm divides time into fixed intervals and counts requests per interval. Simple and memory-efficient but allows 2x burst at window boundaries.
```typescript
class GameRoom extends withRateLimit(Room, {
strategy: 'fixed-window',
messagesPerSecond: 10,
burstSize: 10,
}) { }
```
**Best for:** Simple scenarios where boundary burst is acceptable.
## Configuration
### Room Configuration
```typescript
import { withRateLimit } from '@esengine/server/ratelimit'
class GameRoom extends withRateLimit(Room, {
// Messages allowed per second (default: 10)
messagesPerSecond: 10,
// Burst capacity / bucket size (default: 20)
burstSize: 20,
// Strategy: 'token-bucket' | 'sliding-window' | 'fixed-window'
strategy: 'token-bucket',
// Callback when rate limited
onLimited: (player, messageType, result) => {
player.send('RateLimited', {
type: messageType,
retryAfter: result.retryAfter,
})
},
// Disconnect on rate limit (default: false)
disconnectOnLimit: false,
// Disconnect after N consecutive limits (0 = never)
maxConsecutiveLimits: 10,
// Custom key function (default: player.id)
getKey: (player) => player.id,
// Cleanup interval in ms (default: 60000)
cleanupInterval: 60000,
}) { }
```
### Per-Message Configuration
Use decorators to configure rate limits for specific messages:
```typescript
import { rateLimit, noRateLimit, rateLimitMessage } from '@esengine/server/ratelimit'
class GameRoom extends withRateLimit(Room) {
// Custom rate limit for this message
@rateLimit({ messagesPerSecond: 1, burstSize: 2 })
@onMessage('Trade')
handleTrade(data: TradeData, player: Player) { }
// This message costs 5 tokens
@rateLimit({ cost: 5 })
@onMessage('ExpensiveAction')
handleExpensive(data: any, player: Player) { }
// Exempt from rate limiting
@noRateLimit()
@onMessage('Heartbeat')
handleHeartbeat(data: any, player: Player) { }
// Alternative: specify message type explicitly
@rateLimitMessage('SpecialAction', { messagesPerSecond: 2 })
@onMessage('SpecialAction')
handleSpecial(data: any, player: Player) { }
}
```
## Combining with Authentication
Rate limiting works seamlessly with the authentication system:
```typescript
import { withRoomAuth } from '@esengine/server/auth'
import { withRateLimit } from '@esengine/server/ratelimit'
// Apply both mixins
class GameRoom extends withRateLimit(
withRoomAuth(Room, { requireAuth: true }),
{ messagesPerSecond: 10 }
) {
onJoin(player: AuthPlayer) {
console.log(`${player.user?.name} joined with rate limit protection`)
}
}
```
## Rate Limit Result
When a message is rate limited, the callback receives a result object:
```typescript
interface RateLimitResult {
// Whether the request was allowed
allowed: boolean
// Remaining quota
remaining: number
// When the quota resets (timestamp)
resetAt: number
// How long to wait before retrying (ms)
retryAfter?: number
}
```
## Accessing Rate Limit Context
You can access the rate limit context for any player:
```typescript
import { getPlayerRateLimitContext } from '@esengine/server/ratelimit'
class GameRoom extends withRateLimit(Room) {
someMethod(player: Player) {
const context = this.getRateLimitContext(player)
// Check without consuming
const status = context?.check()
console.log(`Remaining: ${status?.remaining}`)
// Get consecutive limit count
console.log(`Consecutive limits: ${context?.consecutiveLimitCount}`)
}
}
// Or use the standalone function
const context = getPlayerRateLimitContext(player)
```
## Custom Strategies
You can use the strategies directly for custom implementations:
```typescript
import {
TokenBucketStrategy,
SlidingWindowStrategy,
FixedWindowStrategy,
createTokenBucketStrategy,
} from '@esengine/server/ratelimit'
// Create strategy directly
const strategy = createTokenBucketStrategy({
rate: 10, // tokens per second
capacity: 20, // max tokens
})
// Check and consume
const result = strategy.consume('player-123')
if (result.allowed) {
// Process message
} else {
// Rate limited, wait result.retryAfter ms
}
// Check without consuming
const status = strategy.getStatus('player-123')
// Reset a key
strategy.reset('player-123')
// Cleanup expired records
strategy.cleanup()
```
## Rate Limit Context
The `RateLimitContext` class manages rate limiting for a single player:
```typescript
import { RateLimitContext, TokenBucketStrategy } from '@esengine/server/ratelimit'
const strategy = new TokenBucketStrategy({ rate: 10, capacity: 20 })
const context = new RateLimitContext('player-123', strategy)
// Check without consuming
context.check()
// Consume quota
context.consume()
// Consume with cost
context.consume(undefined, 5)
// Consume for specific message type
context.consume('Trade')
// Set per-message strategy
context.setMessageStrategy('Trade', new TokenBucketStrategy({ rate: 1, capacity: 2 }))
// Reset
context.reset()
// Get consecutive limit count
console.log(context.consecutiveLimitCount)
```
## Room Lifecycle Hook
You can override the `onRateLimited` hook for custom handling:
```typescript
class GameRoom extends withRateLimit(Room) {
onRateLimited(player: Player, messageType: string, result: RateLimitResult) {
// Log the event
console.log(`Player ${player.id} rate limited on ${messageType}`)
// Send custom error
player.send('SystemMessage', {
type: 'warning',
message: `Slow down! Try again in ${result.retryAfter}ms`,
})
}
}
```
## Best Practices
1. **Start with token bucket**: It's the most flexible algorithm for games.
2. **Set appropriate limits**: Consider your game's mechanics:
- Movement messages: Higher limits (20-60/s)
- Chat messages: Lower limits (1-5/s)
- Trade/purchase: Very low limits (0.5-1/s)
3. **Use burst capacity**: Allow short bursts for responsive gameplay:
```typescript
messagesPerSecond: 10,
burstSize: 30, // Allow 3s worth of burst
```
4. **Exempt critical messages**: Don't rate limit heartbeats or system messages:
```typescript
@noRateLimit()
@onMessage('Heartbeat')
handleHeartbeat() { }
```
5. **Combine with auth**: Rate limit by user ID for authenticated users:
```typescript
getKey: (player) => player.auth?.userId ?? player.id
```
6. **Monitor and adjust**: Log rate limit events to tune your limits:
```typescript
onLimited: (player, type, result) => {
metrics.increment('rate_limit', { messageType: type })
}
```
7. **Graceful degradation**: Send informative errors instead of just disconnecting:
```typescript
onLimited: (player, type, result) => {
player.send('Error', {
code: 'RATE_LIMITED',
message: 'Too many requests',
retryAfter: result.retryAfter,
})
}
```
## Complete Example
```typescript
import { Room, onMessage, type Player } from '@esengine/server'
import { withRoomAuth, type AuthPlayer } from '@esengine/server/auth'
import {
withRateLimit,
rateLimit,
noRateLimit,
type RateLimitResult,
} from '@esengine/server/ratelimit'
interface User {
id: string
name: string
premium: boolean
}
// Combine auth and rate limit
class GameRoom extends withRateLimit(
withRoomAuth<User>(Room, { requireAuth: true }),
{
messagesPerSecond: 10,
burstSize: 30,
strategy: 'token-bucket',
// Use user ID for rate limiting
getKey: (player) => (player as AuthPlayer<User>).user?.id ?? player.id,
// Handle rate limits
onLimited: (player, type, result) => {
player.send('Error', {
code: 'RATE_LIMITED',
messageType: type,
retryAfter: result.retryAfter,
})
},
// Disconnect after 20 consecutive rate limits
maxConsecutiveLimits: 20,
}
) {
onCreate() {
console.log('Room created with auth + rate limit protection')
}
onJoin(player: AuthPlayer<User>) {
this.broadcast('PlayerJoined', { name: player.user?.name })
}
// High-frequency movement (default rate limit)
@onMessage('Move')
handleMove(data: { x: number; y: number }, player: AuthPlayer<User>) {
this.broadcast('PlayerMoved', { id: player.id, ...data })
}
// Low-frequency trading (strict limit)
@rateLimit({ messagesPerSecond: 0.5, burstSize: 2 })
@onMessage('Trade')
handleTrade(data: TradeData, player: AuthPlayer<User>) {
// Process trade...
}
// Chat with moderate limit
@rateLimit({ messagesPerSecond: 2, burstSize: 5 })
@onMessage('Chat')
handleChat(data: { text: string }, player: AuthPlayer<User>) {
this.broadcast('Chat', {
from: player.user?.name,
text: data.text,
})
}
// System messages - no limit
@noRateLimit()
@onMessage('Heartbeat')
handleHeartbeat(data: any, player: Player) {
player.send('Pong', { time: Date.now() })
}
// Custom rate limit handling
onRateLimited(player: Player, messageType: string, result: RateLimitResult) {
console.warn(`[RateLimit] Player ${player.id} limited on ${messageType}`)
}
}
```

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---
title: "Core Concepts"
description: "Transaction system core concepts: context, manager, and Saga pattern"
---
## Transaction State
A transaction can be in the following states:
```typescript
type TransactionState =
| 'pending' // Waiting to execute
| 'executing' // Executing
| 'committed' // Committed
| 'rolledback' // Rolled back
| 'failed' // Failed
```
## TransactionContext
The transaction context encapsulates transaction state, operations, and execution logic.
### Creating Transactions
```typescript
import { TransactionManager } from '@esengine/transaction';
const manager = new TransactionManager();
// Method 1: Manual management with begin()
const tx = manager.begin({ timeout: 5000 });
tx.addOperation(op1);
tx.addOperation(op2);
const result = await tx.execute();
// Method 2: Automatic management with run()
const result = await manager.run((tx) => {
tx.addOperation(op1);
tx.addOperation(op2);
});
```
### Chaining Operations
```typescript
const result = await manager.run((tx) => {
tx.addOperation(new CurrencyOperation({ ... }))
.addOperation(new InventoryOperation({ ... }))
.addOperation(new InventoryOperation({ ... }));
});
```
### Context Data
Operations can share data through the context:
```typescript
class CustomOperation extends BaseOperation<MyData, MyResult> {
async execute(ctx: ITransactionContext): Promise<OperationResult<MyResult>> {
// Read data set by previous operations
const previousResult = ctx.get<number>('previousValue');
// Set data for subsequent operations
ctx.set('myResult', { value: 123 });
return this.success({ ... });
}
}
```
## TransactionManager
The transaction manager is responsible for creating, executing, and recovering transactions.
### Configuration Options
```typescript
interface TransactionManagerConfig {
storage?: ITransactionStorage; // Storage instance
defaultTimeout?: number; // Default timeout (ms)
serverId?: string; // Server ID (for distributed)
autoRecover?: boolean; // Auto-recover pending transactions
}
const manager = new TransactionManager({
storage: new RedisStorage({ client: redis }),
defaultTimeout: 10000,
serverId: 'server-1',
autoRecover: true,
});
```
### Distributed Locking
```typescript
// Acquire lock
const token = await manager.acquireLock('player:123:inventory', 10000);
if (token) {
try {
// Perform operations
await doSomething();
} finally {
// Release lock
await manager.releaseLock('player:123:inventory', token);
}
}
// Or use withLock for convenience
await manager.withLock('player:123:inventory', async () => {
await doSomething();
}, 10000);
```
### Transaction Recovery
Recover pending transactions after server restart:
```typescript
const manager = new TransactionManager({
storage: new RedisStorage({ client: redis }),
serverId: 'server-1',
});
// Recover pending transactions
const recoveredCount = await manager.recover();
console.log(`Recovered ${recoveredCount} transactions`);
```
## Saga Pattern
The transaction system uses the Saga pattern. Each operation must implement `execute` and `compensate` methods:
```typescript
interface ITransactionOperation<TData, TResult> {
readonly name: string;
readonly data: TData;
// Validate preconditions
validate(ctx: ITransactionContext): Promise<boolean>;
// Forward execution
execute(ctx: ITransactionContext): Promise<OperationResult<TResult>>;
// Compensate (rollback)
compensate(ctx: ITransactionContext): Promise<void>;
}
```
### Execution Flow
```
Begin Transaction
┌─────────────────────┐
│ validate(op1) │──fail──► Return failure
└─────────────────────┘
│success
┌─────────────────────┐
│ execute(op1) │──fail──┐
└─────────────────────┘ │
│success │
▼ │
┌─────────────────────┐ │
│ validate(op2) │──fail──┤
└─────────────────────┘ │
│success │
▼ │
┌─────────────────────┐ │
│ execute(op2) │──fail──┤
└─────────────────────┘ │
│success ▼
▼ ┌─────────────────────┐
Commit Transaction │ compensate(op1) │
└─────────────────────┘
Return failure (rolled back)
```
### Custom Operations
```typescript
import { BaseOperation, ITransactionContext, OperationResult } from '@esengine/transaction';
interface UpgradeData {
playerId: string;
itemId: string;
targetLevel: number;
}
interface UpgradeResult {
newLevel: number;
}
class UpgradeOperation extends BaseOperation<UpgradeData, UpgradeResult> {
readonly name = 'upgrade';
private _previousLevel: number = 0;
async validate(ctx: ITransactionContext): Promise<boolean> {
// Validate item exists and can be upgraded
const item = await this.getItem(ctx);
return item !== null && item.level < this.data.targetLevel;
}
async execute(ctx: ITransactionContext): Promise<OperationResult<UpgradeResult>> {
const item = await this.getItem(ctx);
if (!item) {
return this.failure('Item not found', 'ITEM_NOT_FOUND');
}
this._previousLevel = item.level;
item.level = this.data.targetLevel;
await this.saveItem(ctx, item);
return this.success({ newLevel: item.level });
}
async compensate(ctx: ITransactionContext): Promise<void> {
const item = await this.getItem(ctx);
if (item) {
item.level = this._previousLevel;
await this.saveItem(ctx, item);
}
}
private async getItem(ctx: ITransactionContext) {
// Get item from storage
}
private async saveItem(ctx: ITransactionContext, item: any) {
// Save item to storage
}
}
```
## Transaction Result
```typescript
interface TransactionResult<T = unknown> {
success: boolean; // Whether succeeded
transactionId: string; // Transaction ID
results: OperationResult[]; // Operation results
data?: T; // Final data
error?: string; // Error message
duration: number; // Execution time (ms)
}
const result = await manager.run((tx) => { ... });
console.log(`Transaction ${result.transactionId}`);
console.log(`Success: ${result.success}`);
console.log(`Duration: ${result.duration}ms`);
if (!result.success) {
console.log(`Error: ${result.error}`);
}
```

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---
title: "Distributed Transactions"
description: "Saga orchestrator and cross-server transaction support"
---
## Saga Orchestrator
`SagaOrchestrator` is used to orchestrate distributed transactions across servers.
### Basic Usage
```typescript
import { SagaOrchestrator, RedisStorage } from '@esengine/transaction';
const orchestrator = new SagaOrchestrator({
storage: new RedisStorage({ client: redis }),
timeout: 30000,
serverId: 'orchestrator-1',
});
const result = await orchestrator.execute([
{
name: 'deduct_currency',
serverId: 'game-server-1',
data: { playerId: 'player1', amount: 100 },
execute: async (data) => {
// Call game server API to deduct currency
const response = await gameServerApi.deductCurrency(data);
return { success: response.ok };
},
compensate: async (data) => {
// Call game server API to restore currency
await gameServerApi.addCurrency(data);
},
},
{
name: 'add_item',
serverId: 'inventory-server-1',
data: { playerId: 'player1', itemId: 'sword' },
execute: async (data) => {
const response = await inventoryServerApi.addItem(data);
return { success: response.ok };
},
compensate: async (data) => {
await inventoryServerApi.removeItem(data);
},
},
]);
if (result.success) {
console.log('Saga completed successfully');
} else {
console.log('Saga failed:', result.error);
console.log('Completed steps:', result.completedSteps);
console.log('Failed at:', result.failedStep);
}
```
### Configuration Options
```typescript
interface SagaOrchestratorConfig {
storage?: ITransactionStorage; // Storage instance
timeout?: number; // Timeout in milliseconds
serverId?: string; // Orchestrator server ID
}
```
### Saga Step
```typescript
interface SagaStep<T = unknown> {
name: string; // Step name
serverId?: string; // Target server ID
data: T; // Step data
execute: (data: T) => Promise<OperationResult>; // Execute function
compensate: (data: T) => Promise<void>; // Compensate function
}
```
### Saga Result
```typescript
interface SagaResult {
success: boolean; // Whether succeeded
sagaId: string; // Saga ID
completedSteps: string[]; // Completed steps
failedStep?: string; // Failed step
error?: string; // Error message
duration: number; // Execution time (ms)
}
```
## Execution Flow
```
Start Saga
┌─────────────────────┐
│ Step 1: execute │──fail──┐
└─────────────────────┘ │
│success │
▼ │
┌─────────────────────┐ │
│ Step 2: execute │──fail──┤
└─────────────────────┘ │
│success │
▼ │
┌─────────────────────┐ │
│ Step 3: execute │──fail──┤
└─────────────────────┘ │
│success ▼
▼ ┌─────────────────────┐
Saga Complete │ Step 2: compensate │
└─────────────────────┘
┌─────────────────────┐
│ Step 1: compensate │
└─────────────────────┘
Saga Failed (compensated)
```
## Saga Logs
The orchestrator records detailed execution logs:
```typescript
interface SagaLog {
id: string; // Saga ID
state: SagaLogState; // State
steps: SagaStepLog[]; // Step logs
createdAt: number; // Creation time
updatedAt: number; // Update time
metadata?: Record<string, unknown>;
}
type SagaLogState =
| 'pending' // Waiting to execute
| 'running' // Executing
| 'completed' // Completed
| 'compensating' // Compensating
| 'compensated' // Compensated
| 'failed' // Failed
interface SagaStepLog {
name: string; // Step name
serverId?: string; // Server ID
state: SagaStepState; // State
startedAt?: number; // Start time
completedAt?: number; // Completion time
error?: string; // Error message
}
type SagaStepState =
| 'pending' // Waiting to execute
| 'executing' // Executing
| 'completed' // Completed
| 'compensating' // Compensating
| 'compensated' // Compensated
| 'failed' // Failed
```
### Query Saga Logs
```typescript
const log = await orchestrator.getSagaLog('saga_xxx');
if (log) {
console.log('Saga state:', log.state);
for (const step of log.steps) {
console.log(` ${step.name}: ${step.state}`);
}
}
```
## Cross-Server Transaction Examples
### Scenario: Cross-Server Purchase
A player purchases an item on a game server, with currency on an account server and items on an inventory server.
```typescript
const orchestrator = new SagaOrchestrator({
storage: redisStorage,
serverId: 'purchase-orchestrator',
});
async function crossServerPurchase(
playerId: string,
itemId: string,
price: number
): Promise<SagaResult> {
return orchestrator.execute([
// Step 1: Deduct balance on account server
{
name: 'deduct_balance',
serverId: 'account-server',
data: { playerId, amount: price },
execute: async (data) => {
const result = await accountService.deduct(data.playerId, data.amount);
return { success: result.ok, error: result.error };
},
compensate: async (data) => {
await accountService.refund(data.playerId, data.amount);
},
},
// Step 2: Add item on inventory server
{
name: 'add_item',
serverId: 'inventory-server',
data: { playerId, itemId },
execute: async (data) => {
const result = await inventoryService.addItem(data.playerId, data.itemId);
return { success: result.ok, error: result.error };
},
compensate: async (data) => {
await inventoryService.removeItem(data.playerId, data.itemId);
},
},
// Step 3: Record purchase log
{
name: 'log_purchase',
serverId: 'log-server',
data: { playerId, itemId, price, timestamp: Date.now() },
execute: async (data) => {
await logService.recordPurchase(data);
return { success: true };
},
compensate: async (data) => {
await logService.cancelPurchase(data);
},
},
]);
}
```
### Scenario: Cross-Server Trade
Two players on different servers trade with each other.
```typescript
async function crossServerTrade(
playerA: { id: string; server: string; items: string[] },
playerB: { id: string; server: string; items: string[] }
): Promise<SagaResult> {
const steps: SagaStep[] = [];
// Remove items from player A
for (const itemId of playerA.items) {
steps.push({
name: `remove_${playerA.id}_${itemId}`,
serverId: playerA.server,
data: { playerId: playerA.id, itemId },
execute: async (data) => {
return await inventoryService.removeItem(data.playerId, data.itemId);
},
compensate: async (data) => {
await inventoryService.addItem(data.playerId, data.itemId);
},
});
}
// Add items to player B (from A)
for (const itemId of playerA.items) {
steps.push({
name: `add_${playerB.id}_${itemId}`,
serverId: playerB.server,
data: { playerId: playerB.id, itemId },
execute: async (data) => {
return await inventoryService.addItem(data.playerId, data.itemId);
},
compensate: async (data) => {
await inventoryService.removeItem(data.playerId, data.itemId);
},
});
}
// Similarly handle player B's items...
return orchestrator.execute(steps);
}
```
## Recovering Incomplete Sagas
Recover incomplete Sagas after server restart:
```typescript
const orchestrator = new SagaOrchestrator({
storage: redisStorage,
serverId: 'my-orchestrator',
});
// Recover incomplete Sagas (will execute compensation)
const recoveredCount = await orchestrator.recover();
console.log(`Recovered ${recoveredCount} sagas`);
```
## Best Practices
### 1. Idempotency
Ensure all operations are idempotent:
```typescript
{
execute: async (data) => {
// Use unique ID to ensure idempotency
const result = await service.process(data.requestId, data);
return { success: result.ok };
},
compensate: async (data) => {
// Compensation must also be idempotent
await service.rollback(data.requestId);
},
}
```
### 2. Timeout Handling
Set appropriate timeout values:
```typescript
const orchestrator = new SagaOrchestrator({
timeout: 60000, // Cross-server operations need longer timeout
});
```
### 3. Monitoring and Alerts
Log Saga execution results:
```typescript
const result = await orchestrator.execute(steps);
if (!result.success) {
// Send alert
alertService.send({
type: 'saga_failed',
sagaId: result.sagaId,
failedStep: result.failedStep,
error: result.error,
});
// Log details
const log = await orchestrator.getSagaLog(result.sagaId);
logger.error('Saga failed', { log });
}
```

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---
title: "Transaction System"
description: "Game transaction system with distributed support for shop purchases, player trading, and more"
---
`@esengine/transaction` provides comprehensive game transaction capabilities based on the Saga pattern, supporting shop purchases, player trading, multi-step tasks, and distributed transactions with Redis/MongoDB.
## Overview
The transaction system solves common data consistency problems in games:
| Scenario | Problem | Solution |
|----------|---------|----------|
| Shop Purchase | Payment succeeded but item not delivered | Atomic transaction with auto-rollback |
| Player Trade | One party transferred items but other didn't receive | Saga compensation mechanism |
| Cross-Server | Data inconsistency across servers | Distributed lock + transaction log |
## Installation
```bash
npm install @esengine/transaction
```
Optional dependencies (install based on storage needs):
```bash
npm install ioredis # Redis storage
npm install mongodb # MongoDB storage
```
## Architecture
```
┌─────────────────────────────────────────────────────────────────┐
│ Transaction Layer │
├─────────────────────────────────────────────────────────────────┤
│ TransactionManager - Manages transaction lifecycle │
│ TransactionContext - Encapsulates operations and state │
│ SagaOrchestrator - Distributed Saga orchestrator │
├─────────────────────────────────────────────────────────────────┤
│ Storage Layer │
├─────────────────────────────────────────────────────────────────┤
│ MemoryStorage - In-memory (dev/test) │
│ RedisStorage - Redis (distributed lock + cache) │
│ MongoStorage - MongoDB (persistent log) │
├─────────────────────────────────────────────────────────────────┤
│ Operation Layer │
├─────────────────────────────────────────────────────────────────┤
│ CurrencyOperation - Currency operations │
│ InventoryOperation - Inventory operations │
│ TradeOperation - Trade operations │
└─────────────────────────────────────────────────────────────────┘
```
## Quick Start
### Basic Usage
```typescript
import {
TransactionManager,
MemoryStorage,
CurrencyOperation,
InventoryOperation,
} from '@esengine/transaction';
// Create transaction manager
const manager = new TransactionManager({
storage: new MemoryStorage(),
defaultTimeout: 10000,
});
// Execute transaction
const result = await manager.run((tx) => {
// Deduct gold
tx.addOperation(new CurrencyOperation({
type: 'deduct',
playerId: 'player1',
currency: 'gold',
amount: 100,
}));
// Add item
tx.addOperation(new InventoryOperation({
type: 'add',
playerId: 'player1',
itemId: 'sword_001',
quantity: 1,
}));
});
if (result.success) {
console.log('Purchase successful!');
} else {
console.log('Purchase failed:', result.error);
}
```
### Player Trading
```typescript
import { TradeOperation } from '@esengine/transaction';
const result = await manager.run((tx) => {
tx.addOperation(new TradeOperation({
tradeId: 'trade_001',
partyA: {
playerId: 'player1',
items: [{ itemId: 'sword', quantity: 1 }],
},
partyB: {
playerId: 'player2',
currencies: [{ currency: 'gold', amount: 1000 }],
},
}));
}, { timeout: 30000 });
```
### Using Redis Storage
```typescript
import Redis from 'ioredis';
import { TransactionManager, RedisStorage } from '@esengine/transaction';
const redis = new Redis('redis://localhost:6379');
const storage = new RedisStorage({ client: redis });
const manager = new TransactionManager({ storage });
```
### Using MongoDB Storage
```typescript
import { MongoClient } from 'mongodb';
import { TransactionManager, MongoStorage } from '@esengine/transaction';
const client = new MongoClient('mongodb://localhost:27017');
await client.connect();
const db = client.db('game');
const storage = new MongoStorage({ db });
await storage.ensureIndexes();
const manager = new TransactionManager({ storage });
```
## Room Integration
```typescript
import { Room } from '@esengine/server';
import { withTransactions, CurrencyOperation, RedisStorage } from '@esengine/transaction';
class GameRoom extends withTransactions(Room, {
storage: new RedisStorage({ client: redisClient }),
}) {
@onMessage('Buy')
async handleBuy(data: { itemId: string }, player: Player) {
const result = await this.runTransaction((tx) => {
tx.addOperation(new CurrencyOperation({
type: 'deduct',
playerId: player.id,
currency: 'gold',
amount: getItemPrice(data.itemId),
}));
});
if (result.success) {
player.send('buy_success', { itemId: data.itemId });
} else {
player.send('buy_failed', { error: result.error });
}
}
}
```
## Documentation
- [Core Concepts](/en/modules/transaction/core/) - Transaction context, manager, Saga pattern
- [Storage Layer](/en/modules/transaction/storage/) - MemoryStorage, RedisStorage, MongoStorage
- [Operations](/en/modules/transaction/operations/) - Currency, inventory, trade operations
- [Distributed Transactions](/en/modules/transaction/distributed/) - Saga orchestrator, cross-server transactions
- [API Reference](/en/modules/transaction/api/) - Complete API documentation
## Service Tokens
For dependency injection:
```typescript
import {
TransactionManagerToken,
TransactionStorageToken,
} from '@esengine/transaction';
const manager = services.get(TransactionManagerToken);
```
## Best Practices
### 1. Operation Granularity
```typescript
// ✅ Good: Fine-grained operations, easy to rollback
tx.addOperation(new CurrencyOperation({ type: 'deduct', ... }));
tx.addOperation(new InventoryOperation({ type: 'add', ... }));
// ❌ Bad: Coarse-grained operation, hard to partially rollback
tx.addOperation(new ComplexPurchaseOperation({ ... }));
```
### 2. Timeout Settings
```typescript
// Simple operations: short timeout
await manager.run(tx => { ... }, { timeout: 5000 });
// Complex trades: longer timeout
await manager.run(tx => { ... }, { timeout: 30000 });
// Cross-server: even longer timeout
await manager.run(tx => { ... }, { timeout: 60000, distributed: true });
```
### 3. Error Handling
```typescript
const result = await manager.run((tx) => { ... });
if (!result.success) {
// Log the error
logger.error('Transaction failed', {
transactionId: result.transactionId,
error: result.error,
duration: result.duration,
});
// Notify user
player.send('error', { message: getErrorMessage(result.error) });
}
```

View File

@@ -0,0 +1,313 @@
---
title: "Operations"
description: "Built-in transaction operations: currency, inventory, trade"
---
## BaseOperation
Base class for all operations, providing a common implementation template.
```typescript
import { BaseOperation, ITransactionContext, OperationResult } from '@esengine/transaction';
class MyOperation extends BaseOperation<MyData, MyResult> {
readonly name = 'myOperation';
async validate(ctx: ITransactionContext): Promise<boolean> {
// Validate preconditions
return true;
}
async execute(ctx: ITransactionContext): Promise<OperationResult<MyResult>> {
// Execute operation
return this.success({ result: 'ok' });
// or
return this.failure('Something went wrong', 'ERROR_CODE');
}
async compensate(ctx: ITransactionContext): Promise<void> {
// Rollback operation
}
}
```
## CurrencyOperation
Handles currency addition and deduction.
### Deduct Currency
```typescript
import { CurrencyOperation } from '@esengine/transaction';
tx.addOperation(new CurrencyOperation({
type: 'deduct',
playerId: 'player1',
currency: 'gold',
amount: 100,
reason: 'purchase_item',
}));
```
### Add Currency
```typescript
tx.addOperation(new CurrencyOperation({
type: 'add',
playerId: 'player1',
currency: 'diamond',
amount: 50,
reason: 'daily_reward',
}));
```
### Operation Data
```typescript
interface CurrencyOperationData {
type: 'add' | 'deduct'; // Operation type
playerId: string; // Player ID
currency: string; // Currency type
amount: number; // Amount
reason?: string; // Reason/source
}
```
### Operation Result
```typescript
interface CurrencyOperationResult {
beforeBalance: number; // Balance before operation
afterBalance: number; // Balance after operation
}
```
### Custom Data Provider
```typescript
interface ICurrencyProvider {
getBalance(playerId: string, currency: string): Promise<number>;
setBalance(playerId: string, currency: string, amount: number): Promise<void>;
}
class MyCurrencyProvider implements ICurrencyProvider {
async getBalance(playerId: string, currency: string): Promise<number> {
// Get balance from database
return await db.getCurrency(playerId, currency);
}
async setBalance(playerId: string, currency: string, amount: number): Promise<void> {
// Save to database
await db.setCurrency(playerId, currency, amount);
}
}
// Use custom provider
const op = new CurrencyOperation({ ... });
op.setProvider(new MyCurrencyProvider());
tx.addOperation(op);
```
## InventoryOperation
Handles item addition, removal, and updates.
### Add Item
```typescript
import { InventoryOperation } from '@esengine/transaction';
tx.addOperation(new InventoryOperation({
type: 'add',
playerId: 'player1',
itemId: 'sword_001',
quantity: 1,
properties: { enchant: 'fire' },
}));
```
### Remove Item
```typescript
tx.addOperation(new InventoryOperation({
type: 'remove',
playerId: 'player1',
itemId: 'potion_hp',
quantity: 5,
}));
```
### Update Item
```typescript
tx.addOperation(new InventoryOperation({
type: 'update',
playerId: 'player1',
itemId: 'sword_001',
quantity: 1, // Optional, keeps original if not provided
properties: { enchant: 'lightning', level: 5 },
}));
```
### Operation Data
```typescript
interface InventoryOperationData {
type: 'add' | 'remove' | 'update'; // Operation type
playerId: string; // Player ID
itemId: string; // Item ID
quantity: number; // Quantity
properties?: Record<string, unknown>; // Item properties
reason?: string; // Reason/source
}
```
### Operation Result
```typescript
interface InventoryOperationResult {
beforeItem?: ItemData; // Item before operation
afterItem?: ItemData; // Item after operation
}
interface ItemData {
itemId: string;
quantity: number;
properties?: Record<string, unknown>;
}
```
### Custom Data Provider
```typescript
interface IInventoryProvider {
getItem(playerId: string, itemId: string): Promise<ItemData | null>;
setItem(playerId: string, itemId: string, item: ItemData | null): Promise<void>;
hasCapacity?(playerId: string, count: number): Promise<boolean>;
}
class MyInventoryProvider implements IInventoryProvider {
async getItem(playerId: string, itemId: string): Promise<ItemData | null> {
return await db.getItem(playerId, itemId);
}
async setItem(playerId: string, itemId: string, item: ItemData | null): Promise<void> {
if (item) {
await db.saveItem(playerId, itemId, item);
} else {
await db.deleteItem(playerId, itemId);
}
}
async hasCapacity(playerId: string, count: number): Promise<boolean> {
const current = await db.getItemCount(playerId);
const max = await db.getMaxCapacity(playerId);
return current + count <= max;
}
}
```
## TradeOperation
Handles item and currency exchange between players.
### Basic Usage
```typescript
import { TradeOperation } from '@esengine/transaction';
tx.addOperation(new TradeOperation({
tradeId: 'trade_001',
partyA: {
playerId: 'player1',
items: [{ itemId: 'sword', quantity: 1 }],
currencies: [{ currency: 'diamond', amount: 10 }],
},
partyB: {
playerId: 'player2',
currencies: [{ currency: 'gold', amount: 1000 }],
},
reason: 'player_trade',
}));
```
### Operation Data
```typescript
interface TradeOperationData {
tradeId: string; // Trade ID
partyA: TradeParty; // Trade initiator
partyB: TradeParty; // Trade receiver
reason?: string; // Reason/note
}
interface TradeParty {
playerId: string; // Player ID
items?: TradeItem[]; // Items to give
currencies?: TradeCurrency[]; // Currencies to give
}
interface TradeItem {
itemId: string;
quantity: number;
}
interface TradeCurrency {
currency: string;
amount: number;
}
```
### Execution Flow
TradeOperation internally generates the following sub-operation sequence:
```
1. Remove partyA's items
2. Add items to partyB (from partyA)
3. Deduct partyA's currencies
4. Add currencies to partyB (from partyA)
5. Remove partyB's items
6. Add items to partyA (from partyB)
7. Deduct partyB's currencies
8. Add currencies to partyA (from partyB)
```
If any step fails, all previous operations are rolled back.
### Using Custom Providers
```typescript
const op = new TradeOperation({ ... });
op.setProvider({
currencyProvider: new MyCurrencyProvider(),
inventoryProvider: new MyInventoryProvider(),
});
tx.addOperation(op);
```
## Factory Functions
Each operation class provides a factory function:
```typescript
import {
createCurrencyOperation,
createInventoryOperation,
createTradeOperation,
} from '@esengine/transaction';
tx.addOperation(createCurrencyOperation({
type: 'deduct',
playerId: 'player1',
currency: 'gold',
amount: 100,
}));
tx.addOperation(createInventoryOperation({
type: 'add',
playerId: 'player1',
itemId: 'sword',
quantity: 1,
}));
```

View File

@@ -0,0 +1,234 @@
---
title: "Storage Layer"
description: "Transaction storage interface and implementations: MemoryStorage, RedisStorage, MongoStorage"
---
## Storage Interface
All storage implementations must implement the `ITransactionStorage` interface:
```typescript
interface ITransactionStorage {
// Lifecycle
close?(): Promise<void>;
// Distributed lock
acquireLock(key: string, ttl: number): Promise<string | null>;
releaseLock(key: string, token: string): Promise<boolean>;
// Transaction log
saveTransaction(tx: TransactionLog): Promise<void>;
getTransaction(id: string): Promise<TransactionLog | null>;
updateTransactionState(id: string, state: TransactionState): Promise<void>;
updateOperationState(txId: string, opIndex: number, state: string, error?: string): Promise<void>;
getPendingTransactions(serverId?: string): Promise<TransactionLog[]>;
deleteTransaction(id: string): Promise<void>;
// Data operations
get<T>(key: string): Promise<T | null>;
set<T>(key: string, value: T, ttl?: number): Promise<void>;
delete(key: string): Promise<boolean>;
}
```
## MemoryStorage
In-memory storage, suitable for development and testing.
```typescript
import { MemoryStorage } from '@esengine/transaction';
const storage = new MemoryStorage({
maxTransactions: 1000, // Maximum transaction log count
});
const manager = new TransactionManager({ storage });
```
### Characteristics
- ✅ No external dependencies
- ✅ Fast, good for debugging
- ❌ Data only stored in memory
- ❌ No true distributed locking
- ❌ Data lost on restart
### Test Helpers
```typescript
// Clear all data
storage.clear();
// Get transaction count
console.log(storage.transactionCount);
```
## RedisStorage
Redis storage, suitable for production distributed systems. Uses factory pattern with lazy connection.
```typescript
import Redis from 'ioredis';
import { RedisStorage } from '@esengine/transaction';
// Factory pattern: lazy connection, connects on first operation
const storage = new RedisStorage({
factory: () => new Redis('redis://localhost:6379'),
prefix: 'tx:', // Key prefix
transactionTTL: 86400, // Transaction log TTL (seconds)
});
const manager = new TransactionManager({ storage });
// Close connection when done
await storage.close();
// Or use await using for automatic cleanup (TypeScript 5.2+)
await using storage = new RedisStorage({
factory: () => new Redis('redis://localhost:6379')
});
// Automatically closed when scope ends
```
### Characteristics
- ✅ High-performance distributed locking
- ✅ Fast read/write
- ✅ Supports TTL auto-expiration
- ✅ Suitable for high concurrency
- ❌ Requires Redis server
### Distributed Lock Implementation
Uses Redis `SET NX EX` for distributed locking:
```typescript
// Acquire lock (atomic operation)
SET tx:lock:player:123 <token> NX EX 10
// Release lock (Lua script for atomicity)
if redis.call("get", KEYS[1]) == ARGV[1] then
return redis.call("del", KEYS[1])
else
return 0
end
```
### Key Structure
```
tx:lock:{key} - Distributed locks
tx:tx:{id} - Transaction logs
tx:server:{id}:txs - Server transaction index
tx:data:{key} - Business data
```
## MongoStorage
MongoDB storage, suitable for scenarios requiring persistence and complex queries. Uses factory pattern with lazy connection.
```typescript
import { MongoClient } from 'mongodb';
import { MongoStorage } from '@esengine/transaction';
// Factory pattern: lazy connection, connects on first operation
const storage = new MongoStorage({
factory: async () => {
const client = new MongoClient('mongodb://localhost:27017');
await client.connect();
return client;
},
database: 'game',
transactionCollection: 'transactions', // Transaction log collection
dataCollection: 'transaction_data', // Business data collection
lockCollection: 'transaction_locks', // Lock collection
});
// Create indexes (run on first startup)
await storage.ensureIndexes();
const manager = new TransactionManager({ storage });
// Close connection when done
await storage.close();
// Or use await using for automatic cleanup (TypeScript 5.2+)
await using storage = new MongoStorage({ ... });
```
### Characteristics
- ✅ Persistent storage
- ✅ Supports complex queries
- ✅ Transaction logs are traceable
- ✅ Suitable for audit requirements
- ❌ Slightly lower performance than Redis
- ❌ Requires MongoDB server
### Index Structure
```javascript
// transactions collection
{ state: 1 }
{ 'metadata.serverId': 1 }
{ createdAt: 1 }
// transaction_locks collection
{ expireAt: 1 } // TTL index
// transaction_data collection
{ expireAt: 1 } // TTL index
```
### Distributed Lock Implementation
Uses MongoDB unique index for distributed locking:
```typescript
// Acquire lock
db.transaction_locks.insertOne({
_id: 'player:123',
token: '<token>',
expireAt: new Date(Date.now() + 10000)
});
// If key exists, check if expired
db.transaction_locks.updateOne(
{ _id: 'player:123', expireAt: { $lt: new Date() } },
{ $set: { token: '<token>', expireAt: new Date(Date.now() + 10000) } }
);
```
## Storage Selection Guide
| Scenario | Recommended Storage | Reason |
|----------|---------------------|--------|
| Development/Testing | MemoryStorage | No dependencies, fast startup |
| Single-machine Production | RedisStorage | High performance, simple |
| Distributed System | RedisStorage | True distributed locking |
| Audit Required | MongoStorage | Persistent logs |
| Mixed Requirements | Redis + Mongo | Redis for locks, Mongo for logs |
## Custom Storage
Implement `ITransactionStorage` interface to create custom storage:
```typescript
import { ITransactionStorage, TransactionLog, TransactionState } from '@esengine/transaction';
class MyCustomStorage implements ITransactionStorage {
async acquireLock(key: string, ttl: number): Promise<string | null> {
// Implement distributed lock acquisition
}
async releaseLock(key: string, token: string): Promise<boolean> {
// Implement distributed lock release
}
async saveTransaction(tx: TransactionLog): Promise<void> {
// Save transaction log
}
// ... implement other methods
}
```

View File

@@ -35,6 +35,7 @@ ESEngine 提供了丰富的功能模块,可以按需引入到你的项目中
| 模块 | 包名 | 描述 |
|------|------|------|
| [网络同步](/modules/network/) | `@esengine/network` | 多人游戏网络同步 |
| [事务系统](/modules/transaction/) | `@esengine/transaction` | 游戏事务处理,支持分布式事务 |
## 安装

View File

@@ -0,0 +1,506 @@
---
title: "认证系统"
description: "使用 JWT 和 Session 提供者为游戏服务器添加认证功能"
---
`@esengine/server` 包内置了可插拔的认证系统,支持 JWT、会话认证和自定义提供者。
## 安装
认证功能已包含在 server 包中:
```bash
npm install @esengine/server jsonwebtoken
```
> 注意:`jsonwebtoken` 是可选的 peer dependency仅在使用 JWT 认证时需要。
## 快速开始
### JWT 认证
```typescript
import { createServer } from '@esengine/server'
import { withAuth, createJwtAuthProvider, withRoomAuth, requireAuth } from '@esengine/server/auth'
// 创建 JWT 提供者
const jwtProvider = createJwtAuthProvider({
secret: process.env.JWT_SECRET!,
expiresIn: 3600, // 1 小时
})
// 用认证包装服务器
const server = withAuth(await createServer({ port: 3000 }), {
provider: jwtProvider,
extractCredentials: (req) => {
const url = new URL(req.url ?? '', 'http://localhost')
return url.searchParams.get('token')
},
})
// 定义需要认证的房间
class GameRoom extends withRoomAuth(Room, { requireAuth: true }) {
onJoin(player) {
console.log(`${player.user?.name} 加入了游戏!`)
}
}
server.define('game', GameRoom)
await server.start()
```
## 认证提供者
### JWT 提供者
使用 JSON Web Tokens 实现无状态认证:
```typescript
import { createJwtAuthProvider } from '@esengine/server/auth'
const jwtProvider = createJwtAuthProvider({
// 必填:密钥
secret: 'your-secret-key',
// 可选算法默认HS256
algorithm: 'HS256',
// 可选过期时间默认3600
expiresIn: 3600,
// 可选:签发者(用于验证)
issuer: 'my-game-server',
// 可选:受众(用于验证)
audience: 'my-game-client',
// 可选:自定义用户提取
getUser: async (payload) => {
// 从数据库获取用户
return await db.users.findById(payload.sub)
},
})
// 签发令牌(用于登录接口)
const token = jwtProvider.sign({
sub: user.id,
name: user.name,
roles: ['player'],
})
// 解码但不验证(用于调试)
const payload = jwtProvider.decode(token)
```
### Session 提供者
使用服务端会话实现有状态认证:
```typescript
import { createSessionAuthProvider, type ISessionStorage } from '@esengine/server/auth'
// 自定义存储实现
const storage: ISessionStorage = {
async get<T>(key: string): Promise<T | null> {
return await redis.get(key)
},
async set<T>(key: string, value: T): Promise<void> {
await redis.set(key, value)
},
async delete(key: string): Promise<boolean> {
return await redis.del(key) > 0
},
}
const sessionProvider = createSessionAuthProvider({
storage,
sessionTTL: 86400000, // 24 小时(毫秒)
// 可选:每次请求时验证用户
validateUser: (user) => !user.banned,
})
// 创建会话(用于登录接口)
const sessionId = await sessionProvider.createSession(user, {
ipAddress: req.ip,
userAgent: req.headers['user-agent'],
})
// 撤销会话(用于登出)
await sessionProvider.revoke(sessionId)
```
## 服务器认证 Mixin
`withAuth` 函数用于包装服务器添加认证功能:
```typescript
import { withAuth } from '@esengine/server/auth'
const server = withAuth(baseServer, {
// 必填:认证提供者
provider: jwtProvider,
// 必填:从请求中提取凭证
extractCredentials: (req) => {
// 从查询字符串获取
return new URL(req.url, 'http://localhost').searchParams.get('token')
// 或从请求头获取
// return req.headers['authorization']?.replace('Bearer ', '')
},
// 可选:处理认证失败
onAuthFailed: (conn, error) => {
console.log(`认证失败: ${error}`)
},
})
```
### 访问认证上下文
认证后,可以从连接获取认证上下文:
```typescript
import { getAuthContext } from '@esengine/server/auth'
server.onConnect = (conn) => {
const auth = getAuthContext(conn)
if (auth.isAuthenticated) {
console.log(`用户 ${auth.userId} 已连接`)
console.log(`角色: ${auth.roles}`)
}
}
```
## 房间认证 Mixin
`withRoomAuth` 函数为房间添加认证检查:
```typescript
import { withRoomAuth, type AuthPlayer } from '@esengine/server/auth'
interface User {
id: string
name: string
roles: string[]
}
class GameRoom extends withRoomAuth<User>(Room, {
// 要求认证才能加入
requireAuth: true,
// 可选:要求特定角色
allowedRoles: ['player', 'premium'],
// 可选:角色检查模式('any' 或 'all'
roleCheckMode: 'any',
}) {
// player 拥有 .auth 和 .user 属性
onJoin(player: AuthPlayer<User>) {
console.log(`${player.user?.name} 加入了`)
console.log(`是否高级会员: ${player.auth.hasRole('premium')}`)
}
// 可选:自定义认证验证
async onAuth(player: AuthPlayer<User>): Promise<boolean> {
// 额外的验证逻辑
if (player.auth.hasRole('banned')) {
return false
}
return true
}
@onMessage('Chat')
handleChat(data: { text: string }, player: AuthPlayer<User>) {
this.broadcast('Chat', {
from: player.user?.name ?? '访客',
text: data.text,
})
}
}
```
### AuthPlayer 接口
认证房间中的玩家拥有额外属性:
```typescript
interface AuthPlayer<TUser> extends Player {
// 完整认证上下文
readonly auth: IAuthContext<TUser>
// 用户信息auth.user 的快捷方式)
readonly user: TUser | null
}
```
### 房间认证辅助方法
```typescript
class GameRoom extends withRoomAuth<User>(Room) {
someMethod() {
// 通过用户 ID 获取玩家
const player = this.getPlayerByUserId('user-123')
// 获取拥有特定角色的所有玩家
const admins = this.getPlayersByRole('admin')
// 获取带认证信息的玩家
const authPlayer = this.getAuthPlayer(playerId)
}
}
```
## 认证装饰器
### @requireAuth
标记消息处理器需要认证:
```typescript
import { requireAuth, requireRole, onMessage } from '@esengine/server/auth'
class GameRoom extends withRoomAuth(Room) {
@requireAuth()
@onMessage('Trade')
handleTrade(data: TradeData, player: AuthPlayer) {
// 只有已认证玩家才能交易
}
@requireAuth({ allowGuest: true })
@onMessage('Chat')
handleChat(data: ChatData, player: AuthPlayer) {
// 访客也可以聊天
}
}
```
### @requireRole
要求特定角色才能访问消息处理器:
```typescript
class AdminRoom extends withRoomAuth(Room) {
@requireRole('admin')
@onMessage('Ban')
handleBan(data: BanData, player: AuthPlayer) {
// 只有管理员才能封禁
}
@requireRole(['moderator', 'admin'])
@onMessage('Mute')
handleMute(data: MuteData, player: AuthPlayer) {
// 版主或管理员可以禁言
}
@requireRole(['verified', 'premium'], { mode: 'all' })
@onMessage('SpecialFeature')
handleSpecial(data: any, player: AuthPlayer) {
// 需要同时拥有 verified 和 premium 角色
}
}
```
## 认证上下文 API
认证上下文提供多种检查认证状态的方法:
```typescript
interface IAuthContext<TUser> {
// 认证状态
readonly isAuthenticated: boolean
readonly user: TUser | null
readonly userId: string | null
readonly roles: ReadonlyArray<string>
readonly authenticatedAt: number | null
readonly expiresAt: number | null
// 角色检查
hasRole(role: string): boolean
hasAnyRole(roles: string[]): boolean
hasAllRoles(roles: string[]): boolean
}
```
`AuthContext` 类(实现类)还提供:
```typescript
class AuthContext<TUser> implements IAuthContext<TUser> {
// 从认证结果设置认证状态
setAuthenticated(result: AuthResult<TUser>): void
// 清除认证状态
clear(): void
}
```
## 测试
使用模拟认证提供者进行单元测试:
```typescript
import { createMockAuthProvider } from '@esengine/server/auth/testing'
// 创建带预设用户的模拟提供者
const mockProvider = createMockAuthProvider({
users: [
{ id: '1', name: 'Alice', roles: ['player'] },
{ id: '2', name: 'Bob', roles: ['admin', 'player'] },
],
autoCreate: true, // 为未知令牌创建用户
})
// 在测试中使用
const server = withAuth(testServer, {
provider: mockProvider,
extractCredentials: (req) => req.headers['x-token'],
})
// 使用用户 ID 作为令牌进行验证
const result = await mockProvider.verify('1')
// result.user = { id: '1', name: 'Alice', roles: ['player'] }
// 动态添加/移除用户
mockProvider.addUser({ id: '3', name: 'Charlie', roles: ['guest'] })
mockProvider.removeUser('3')
// 撤销令牌
await mockProvider.revoke('1')
// 重置到初始状态
mockProvider.clear()
```
## 错误处理
认证错误包含错误码用于程序化处理:
```typescript
type AuthErrorCode =
| 'INVALID_CREDENTIALS' // 用户名/密码无效
| 'INVALID_TOKEN' // 令牌格式错误或无效
| 'EXPIRED_TOKEN' // 令牌已过期
| 'USER_NOT_FOUND' // 用户查找失败
| 'ACCOUNT_DISABLED' // 用户账号已禁用
| 'RATE_LIMITED' // 请求过于频繁
| 'INSUFFICIENT_PERMISSIONS' // 权限不足
// 在认证失败处理器中
const server = withAuth(baseServer, {
provider: jwtProvider,
extractCredentials,
onAuthFailed: (conn, error) => {
switch (error.errorCode) {
case 'EXPIRED_TOKEN':
conn.send('AuthError', { code: 'TOKEN_EXPIRED' })
break
case 'INVALID_TOKEN':
conn.send('AuthError', { code: 'INVALID_TOKEN' })
break
default:
conn.close()
}
},
})
```
## 完整示例
以下是使用 JWT 认证的完整示例:
```typescript
// server.ts
import { createServer } from '@esengine/server'
import {
withAuth,
withRoomAuth,
createJwtAuthProvider,
requireAuth,
requireRole,
type AuthPlayer,
} from '@esengine/server/auth'
// 类型定义
interface User {
id: string
name: string
roles: string[]
}
// JWT 提供者
const jwtProvider = createJwtAuthProvider<User>({
secret: process.env.JWT_SECRET!,
expiresIn: 3600,
getUser: async (payload) => ({
id: payload.sub as string,
name: payload.name as string,
roles: (payload.roles as string[]) ?? [],
}),
})
// 创建带认证的服务器
const server = withAuth(
await createServer({ port: 3000 }),
{
provider: jwtProvider,
extractCredentials: (req) => {
return new URL(req.url ?? '', 'http://localhost')
.searchParams.get('token')
},
}
)
// 带认证的游戏房间
class GameRoom extends withRoomAuth<User>(Room, {
requireAuth: true,
allowedRoles: ['player'],
}) {
onCreate() {
console.log('游戏房间已创建')
}
onJoin(player: AuthPlayer<User>) {
console.log(`${player.user?.name} 加入了!`)
this.broadcast('PlayerJoined', {
id: player.id,
name: player.user?.name,
})
}
@requireAuth()
@onMessage('Move')
handleMove(data: { x: number; y: number }, player: AuthPlayer<User>) {
// 处理移动
}
@requireRole('admin')
@onMessage('Kick')
handleKick(data: { playerId: string }, player: AuthPlayer<User>) {
const target = this.getPlayer(data.playerId)
if (target) {
this.kick(target, '被管理员踢出')
}
}
}
server.define('game', GameRoom)
await server.start()
```
## 最佳实践
1. **保护密钥安全**:永远不要硬编码 JWT 密钥,使用环境变量。
2. **设置合理的过期时间**:在安全性和用户体验之间平衡令牌 TTL。
3. **在关键操作上验证**:在敏感消息处理器上使用 `@requireAuth`
4. **使用基于角色的访问控制**:为管理功能实现适当的角色层级。
5. **处理令牌刷新**:为长会话实现令牌刷新逻辑。
6. **记录认证事件**:跟踪登录尝试和失败以进行安全监控。
7. **测试认证流程**:使用 `MockAuthProvider` 测试认证场景。

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@@ -0,0 +1,458 @@
---
title: "速率限制"
description: "使用可配置的速率限制保护你的游戏服务器免受滥用"
---
`@esengine/server` 包含可插拔的速率限制系统,用于防止 DDoS 攻击、消息洪水和其他滥用行为。
## 安装
速率限制包含在 server 包中:
```bash
npm install @esengine/server
```
## 快速开始
```typescript
import { Room, onMessage } from '@esengine/server'
import { withRateLimit, rateLimit, noRateLimit } from '@esengine/server/ratelimit'
class GameRoom extends withRateLimit(Room, {
messagesPerSecond: 10,
burstSize: 20,
onLimited: (player, type, result) => {
player.send('Error', {
code: 'RATE_LIMITED',
retryAfter: result.retryAfter,
})
},
}) {
@onMessage('Move')
handleMove(data: { x: number; y: number }, player: Player) {
// 受速率限制保护(默认 10 msg/s
}
@rateLimit({ messagesPerSecond: 1 })
@onMessage('Trade')
handleTrade(data: TradeData, player: Player) {
// 交易使用更严格的限制
}
@noRateLimit()
@onMessage('Heartbeat')
handleHeartbeat(data: any, player: Player) {
// 心跳不限制
}
}
```
## 速率限制策略
### 令牌桶(默认)
令牌桶算法允许突发流量,同时保持长期速率限制。令牌以固定速率添加,每个请求消耗令牌。
```typescript
import { withRateLimit } from '@esengine/server/ratelimit'
class GameRoom extends withRateLimit(Room, {
strategy: 'token-bucket',
messagesPerSecond: 10, // 补充速率
burstSize: 20, // 桶容量
}) { }
```
**工作原理:**
```
配置: rate=10/s, burstSize=20
[0s] 桶满: 20 令牌
[0s] 收到 15 条消息 → 允许,剩余 5
[0.5s] 补充 5 令牌 → 10 令牌
[0.5s] 收到 8 条消息 → 允许,剩余 2
[0.6s] 补充 1 令牌 → 3 令牌
[0.6s] 收到 5 条消息 → 允许 3拒绝 2
```
**最适合:** 大多数通用场景,平衡突发容忍度与保护。
### 滑动窗口
滑动窗口算法精确跟踪时间窗口内的请求。比固定窗口更准确,但内存使用稍多。
```typescript
class GameRoom extends withRateLimit(Room, {
strategy: 'sliding-window',
messagesPerSecond: 10,
burstSize: 10,
}) { }
```
**最适合:** 需要精确限流且不需要突发容忍的场景。
### 固定窗口
固定窗口算法将时间划分为固定间隔,并计算每个间隔内的请求数。简单且内存高效,但在窗口边界允许 2 倍突发。
```typescript
class GameRoom extends withRateLimit(Room, {
strategy: 'fixed-window',
messagesPerSecond: 10,
burstSize: 10,
}) { }
```
**最适合:** 简单场景,可接受边界突发。
## 配置
### 房间配置
```typescript
import { withRateLimit } from '@esengine/server/ratelimit'
class GameRoom extends withRateLimit(Room, {
// 每秒允许的消息数(默认: 10
messagesPerSecond: 10,
// 突发容量 / 桶大小(默认: 20
burstSize: 20,
// 策略: 'token-bucket' | 'sliding-window' | 'fixed-window'
strategy: 'token-bucket',
// 被限流时的回调
onLimited: (player, messageType, result) => {
player.send('RateLimited', {
type: messageType,
retryAfter: result.retryAfter,
})
},
// 限流时断开连接(默认: false
disconnectOnLimit: false,
// 连续 N 次限流后断开0 = 永不)
maxConsecutiveLimits: 10,
// 自定义键函数(默认: player.id
getKey: (player) => player.id,
// 清理间隔(毫秒,默认: 60000
cleanupInterval: 60000,
}) { }
```
### 单消息配置
使用装饰器为特定消息配置速率限制:
```typescript
import { rateLimit, noRateLimit, rateLimitMessage } from '@esengine/server/ratelimit'
class GameRoom extends withRateLimit(Room) {
// 此消息使用自定义速率限制
@rateLimit({ messagesPerSecond: 1, burstSize: 2 })
@onMessage('Trade')
handleTrade(data: TradeData, player: Player) { }
// 此消息消耗 5 个令牌
@rateLimit({ cost: 5 })
@onMessage('ExpensiveAction')
handleExpensive(data: any, player: Player) { }
// 豁免速率限制
@noRateLimit()
@onMessage('Heartbeat')
handleHeartbeat(data: any, player: Player) { }
// 替代方案:显式指定消息类型
@rateLimitMessage('SpecialAction', { messagesPerSecond: 2 })
@onMessage('SpecialAction')
handleSpecial(data: any, player: Player) { }
}
```
## 与认证系统组合
速率限制可与认证系统无缝配合:
```typescript
import { withRoomAuth } from '@esengine/server/auth'
import { withRateLimit } from '@esengine/server/ratelimit'
// 同时应用两个 mixin
class GameRoom extends withRateLimit(
withRoomAuth(Room, { requireAuth: true }),
{ messagesPerSecond: 10 }
) {
onJoin(player: AuthPlayer) {
console.log(`${player.user?.name} 已加入,受速率限制保护`)
}
}
```
## 速率限制结果
当消息被限流时,回调会收到结果对象:
```typescript
interface RateLimitResult {
// 是否允许请求
allowed: boolean
// 剩余配额
remaining: number
// 配额重置时间(时间戳)
resetAt: number
// 重试等待时间(毫秒)
retryAfter?: number
}
```
## 访问速率限制上下文
你可以访问任何玩家的速率限制上下文:
```typescript
import { getPlayerRateLimitContext } from '@esengine/server/ratelimit'
class GameRoom extends withRateLimit(Room) {
someMethod(player: Player) {
const context = this.getRateLimitContext(player)
// 检查但不消费
const status = context?.check()
console.log(`剩余: ${status?.remaining}`)
// 获取连续限流次数
console.log(`连续限流: ${context?.consecutiveLimitCount}`)
}
}
// 或使用独立函数
const context = getPlayerRateLimitContext(player)
```
## 自定义策略
你可以直接使用策略进行自定义实现:
```typescript
import {
TokenBucketStrategy,
SlidingWindowStrategy,
FixedWindowStrategy,
createTokenBucketStrategy,
} from '@esengine/server/ratelimit'
// 直接创建策略
const strategy = createTokenBucketStrategy({
rate: 10, // 每秒令牌数
capacity: 20, // 最大令牌数
})
// 检查并消费
const result = strategy.consume('player-123')
if (result.allowed) {
// 处理消息
} else {
// 被限流,等待 result.retryAfter 毫秒
}
// 检查但不消费
const status = strategy.getStatus('player-123')
// 重置某个键
strategy.reset('player-123')
// 清理过期记录
strategy.cleanup()
```
## 速率限制上下文
`RateLimitContext` 类管理单个玩家的速率限制:
```typescript
import { RateLimitContext, TokenBucketStrategy } from '@esengine/server/ratelimit'
const strategy = new TokenBucketStrategy({ rate: 10, capacity: 20 })
const context = new RateLimitContext('player-123', strategy)
// 检查但不消费
context.check()
// 消费配额
context.consume()
// 带消耗量消费
context.consume(undefined, 5)
// 为特定消息类型消费
context.consume('Trade')
// 设置单消息策略
context.setMessageStrategy('Trade', new TokenBucketStrategy({ rate: 1, capacity: 2 }))
// 重置
context.reset()
// 获取连续限流次数
console.log(context.consecutiveLimitCount)
```
## 房间生命周期钩子
你可以重写 `onRateLimited` 钩子进行自定义处理:
```typescript
class GameRoom extends withRateLimit(Room) {
onRateLimited(player: Player, messageType: string, result: RateLimitResult) {
// 记录事件
console.log(`玩家 ${player.id}${messageType} 上被限流`)
// 发送自定义错误
player.send('SystemMessage', {
type: 'warning',
message: `请慢一点!${result.retryAfter}ms 后重试`,
})
}
}
```
## 最佳实践
1. **从令牌桶开始**:对于游戏来说是最灵活的算法。
2. **设置合适的限制**:考虑你的游戏机制:
- 移动消息较高限制20-60/s
- 聊天消息较低限制1-5/s
- 交易/购买非常低的限制0.5-1/s
3. **使用突发容量**:允许短暂突发以获得响应式体验:
```typescript
messagesPerSecond: 10,
burstSize: 30, // 允许 3 秒的突发
```
4. **豁免关键消息**:不要限制心跳或系统消息:
```typescript
@noRateLimit()
@onMessage('Heartbeat')
handleHeartbeat() { }
```
5. **与认证结合**:对已认证用户按用户 ID 限流:
```typescript
getKey: (player) => player.auth?.userId ?? player.id
```
6. **监控和调整**:记录限流事件以调整限制:
```typescript
onLimited: (player, type, result) => {
metrics.increment('rate_limit', { messageType: type })
}
```
7. **优雅降级**:发送信息性错误而不是直接断开:
```typescript
onLimited: (player, type, result) => {
player.send('Error', {
code: 'RATE_LIMITED',
message: '请求过于频繁',
retryAfter: result.retryAfter,
})
}
```
## 完整示例
```typescript
import { Room, onMessage, type Player } from '@esengine/server'
import { withRoomAuth, type AuthPlayer } from '@esengine/server/auth'
import {
withRateLimit,
rateLimit,
noRateLimit,
type RateLimitResult,
} from '@esengine/server/ratelimit'
interface User {
id: string
name: string
premium: boolean
}
// 组合认证和速率限制
class GameRoom extends withRateLimit(
withRoomAuth<User>(Room, { requireAuth: true }),
{
messagesPerSecond: 10,
burstSize: 30,
strategy: 'token-bucket',
// 使用用户 ID 进行限流
getKey: (player) => (player as AuthPlayer<User>).user?.id ?? player.id,
// 处理限流
onLimited: (player, type, result) => {
player.send('Error', {
code: 'RATE_LIMITED',
messageType: type,
retryAfter: result.retryAfter,
})
},
// 连续 20 次限流后断开
maxConsecutiveLimits: 20,
}
) {
onCreate() {
console.log('房间已创建,具有认证 + 速率限制保护')
}
onJoin(player: AuthPlayer<User>) {
this.broadcast('PlayerJoined', { name: player.user?.name })
}
// 高频移动(默认速率限制)
@onMessage('Move')
handleMove(data: { x: number; y: number }, player: AuthPlayer<User>) {
this.broadcast('PlayerMoved', { id: player.id, ...data })
}
// 低频交易(严格限制)
@rateLimit({ messagesPerSecond: 0.5, burstSize: 2 })
@onMessage('Trade')
handleTrade(data: TradeData, player: AuthPlayer<User>) {
// 处理交易...
}
// 聊天使用中等限制
@rateLimit({ messagesPerSecond: 2, burstSize: 5 })
@onMessage('Chat')
handleChat(data: { text: string }, player: AuthPlayer<User>) {
this.broadcast('Chat', {
from: player.user?.name,
text: data.text,
})
}
// 系统消息 - 不限制
@noRateLimit()
@onMessage('Heartbeat')
handleHeartbeat(data: any, player: Player) {
player.send('Pong', { time: Date.now() })
}
// 自定义限流处理
onRateLimited(player: Player, messageType: string, result: RateLimitResult) {
console.warn(`[限流] 玩家 ${player.id} 在 ${messageType} 上被限流`)
}
}
```

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---
title: "核心概念"
description: "事务系统的核心概念事务上下文、事务管理器、Saga 模式"
---
## 事务状态
事务有以下几种状态:
```typescript
type TransactionState =
| 'pending' // 等待执行
| 'executing' // 执行中
| 'committed' // 已提交
| 'rolledback' // 已回滚
| 'failed' // 失败
```
## TransactionContext
事务上下文封装了事务的状态、操作和执行逻辑。
### 创建事务
```typescript
import { TransactionManager } from '@esengine/transaction';
const manager = new TransactionManager();
// 方式 1使用 begin() 手动管理
const tx = manager.begin({ timeout: 5000 });
tx.addOperation(op1);
tx.addOperation(op2);
const result = await tx.execute();
// 方式 2使用 run() 自动管理
const result = await manager.run((tx) => {
tx.addOperation(op1);
tx.addOperation(op2);
});
```
### 链式添加操作
```typescript
const result = await manager.run((tx) => {
tx.addOperation(new CurrencyOperation({ ... }))
.addOperation(new InventoryOperation({ ... }))
.addOperation(new InventoryOperation({ ... }));
});
```
### 上下文数据
操作之间可以通过上下文共享数据:
```typescript
class CustomOperation extends BaseOperation<MyData, MyResult> {
async execute(ctx: ITransactionContext): Promise<OperationResult<MyResult>> {
// 读取之前操作设置的数据
const previousResult = ctx.get<number>('previousValue');
// 设置数据供后续操作使用
ctx.set('myResult', { value: 123 });
return this.success({ ... });
}
}
```
## TransactionManager
事务管理器负责创建、执行和恢复事务。
### 配置选项
```typescript
interface TransactionManagerConfig {
storage?: ITransactionStorage; // 存储实例
defaultTimeout?: number; // 默认超时(毫秒)
serverId?: string; // 服务器 ID分布式用
autoRecover?: boolean; // 自动恢复未完成事务
}
const manager = new TransactionManager({
storage: new RedisStorage({ client: redis }),
defaultTimeout: 10000,
serverId: 'server-1',
autoRecover: true,
});
```
### 分布式锁
```typescript
// 获取锁
const token = await manager.acquireLock('player:123:inventory', 10000);
if (token) {
try {
// 执行操作
await doSomething();
} finally {
// 释放锁
await manager.releaseLock('player:123:inventory', token);
}
}
// 或使用 withLock 简化
await manager.withLock('player:123:inventory', async () => {
await doSomething();
}, 10000);
```
### 事务恢复
服务器重启时恢复未完成的事务:
```typescript
const manager = new TransactionManager({
storage: new RedisStorage({ client: redis }),
serverId: 'server-1',
});
// 恢复未完成的事务
const recoveredCount = await manager.recover();
console.log(`Recovered ${recoveredCount} transactions`);
```
## Saga 模式
事务系统采用 Saga 模式,每个操作必须实现 `execute``compensate` 方法:
```typescript
interface ITransactionOperation<TData, TResult> {
readonly name: string;
readonly data: TData;
// 验证前置条件
validate(ctx: ITransactionContext): Promise<boolean>;
// 正向执行
execute(ctx: ITransactionContext): Promise<OperationResult<TResult>>;
// 补偿操作(回滚)
compensate(ctx: ITransactionContext): Promise<void>;
}
```
### 执行流程
```
开始事务
┌─────────────────────┐
│ validate(op1) │──失败──► 返回失败
└─────────────────────┘
│成功
┌─────────────────────┐
│ execute(op1) │──失败──┐
└─────────────────────┘ │
│成功 │
▼ │
┌─────────────────────┐ │
│ validate(op2) │──失败──┤
└─────────────────────┘ │
│成功 │
▼ │
┌─────────────────────┐ │
│ execute(op2) │──失败──┤
└─────────────────────┘ │
│成功 ▼
▼ ┌─────────────────────┐
提交事务 │ compensate(op1) │
└─────────────────────┘
返回失败(已回滚)
```
### 自定义操作
```typescript
import { BaseOperation, ITransactionContext, OperationResult } from '@esengine/transaction';
interface UpgradeData {
playerId: string;
itemId: string;
targetLevel: number;
}
interface UpgradeResult {
newLevel: number;
}
class UpgradeOperation extends BaseOperation<UpgradeData, UpgradeResult> {
readonly name = 'upgrade';
private _previousLevel: number = 0;
async validate(ctx: ITransactionContext): Promise<boolean> {
// 验证物品存在且可升级
const item = await this.getItem(ctx);
return item !== null && item.level < this.data.targetLevel;
}
async execute(ctx: ITransactionContext): Promise<OperationResult<UpgradeResult>> {
const item = await this.getItem(ctx);
if (!item) {
return this.failure('Item not found', 'ITEM_NOT_FOUND');
}
this._previousLevel = item.level;
item.level = this.data.targetLevel;
await this.saveItem(ctx, item);
return this.success({ newLevel: item.level });
}
async compensate(ctx: ITransactionContext): Promise<void> {
const item = await this.getItem(ctx);
if (item) {
item.level = this._previousLevel;
await this.saveItem(ctx, item);
}
}
private async getItem(ctx: ITransactionContext) {
// 从存储获取物品
}
private async saveItem(ctx: ITransactionContext, item: any) {
// 保存物品到存储
}
}
```
## 事务结果
```typescript
interface TransactionResult<T = unknown> {
success: boolean; // 是否成功
transactionId: string; // 事务 ID
results: OperationResult[]; // 各操作结果
data?: T; // 最终数据
error?: string; // 错误信息
duration: number; // 执行时间(毫秒)
}
const result = await manager.run((tx) => { ... });
console.log(`Transaction ${result.transactionId}`);
console.log(`Success: ${result.success}`);
console.log(`Duration: ${result.duration}ms`);
if (!result.success) {
console.log(`Error: ${result.error}`);
}
```

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---
title: "分布式事务"
description: "Saga 编排器和跨服务器事务支持"
---
## Saga 编排器
`SagaOrchestrator` 用于编排跨服务器的分布式事务。
### 基本用法
```typescript
import { SagaOrchestrator, RedisStorage } from '@esengine/transaction';
const orchestrator = new SagaOrchestrator({
storage: new RedisStorage({ client: redis }),
timeout: 30000,
serverId: 'orchestrator-1',
});
const result = await orchestrator.execute([
{
name: 'deduct_currency',
serverId: 'game-server-1',
data: { playerId: 'player1', amount: 100 },
execute: async (data) => {
// 调用游戏服务器 API 扣除货币
const response = await gameServerApi.deductCurrency(data);
return { success: response.ok };
},
compensate: async (data) => {
// 调用游戏服务器 API 恢复货币
await gameServerApi.addCurrency(data);
},
},
{
name: 'add_item',
serverId: 'inventory-server-1',
data: { playerId: 'player1', itemId: 'sword' },
execute: async (data) => {
const response = await inventoryServerApi.addItem(data);
return { success: response.ok };
},
compensate: async (data) => {
await inventoryServerApi.removeItem(data);
},
},
]);
if (result.success) {
console.log('Saga completed successfully');
} else {
console.log('Saga failed:', result.error);
console.log('Completed steps:', result.completedSteps);
console.log('Failed at:', result.failedStep);
}
```
### 配置选项
```typescript
interface SagaOrchestratorConfig {
storage?: ITransactionStorage; // 存储实例
timeout?: number; // 超时时间(毫秒)
serverId?: string; // 编排器服务器 ID
}
```
### Saga 步骤
```typescript
interface SagaStep<T = unknown> {
name: string; // 步骤名称
serverId?: string; // 目标服务器 ID
data: T; // 步骤数据
execute: (data: T) => Promise<OperationResult>; // 执行函数
compensate: (data: T) => Promise<void>; // 补偿函数
}
```
### Saga 结果
```typescript
interface SagaResult {
success: boolean; // 是否成功
sagaId: string; // Saga ID
completedSteps: string[]; // 已完成的步骤
failedStep?: string; // 失败的步骤
error?: string; // 错误信息
duration: number; // 执行时间(毫秒)
}
```
## 执行流程
```
开始 Saga
┌─────────────────────┐
│ Step 1: execute │──失败──┐
└─────────────────────┘ │
│成功 │
▼ │
┌─────────────────────┐ │
│ Step 2: execute │──失败──┤
└─────────────────────┘ │
│成功 │
▼ │
┌─────────────────────┐ │
│ Step 3: execute │──失败──┤
└─────────────────────┘ │
│成功 ▼
▼ ┌─────────────────────┐
Saga 完成 │ Step 2: compensate │
└─────────────────────┘
┌─────────────────────┐
│ Step 1: compensate │
└─────────────────────┘
Saga 失败(已补偿)
```
## Saga 日志
编排器会记录详细的执行日志:
```typescript
interface SagaLog {
id: string; // Saga ID
state: SagaLogState; // 状态
steps: SagaStepLog[]; // 步骤日志
createdAt: number; // 创建时间
updatedAt: number; // 更新时间
metadata?: Record<string, unknown>;
}
type SagaLogState =
| 'pending' // 等待执行
| 'running' // 执行中
| 'completed' // 已完成
| 'compensating' // 补偿中
| 'compensated' // 已补偿
| 'failed' // 失败
interface SagaStepLog {
name: string; // 步骤名称
serverId?: string; // 服务器 ID
state: SagaStepState; // 状态
startedAt?: number; // 开始时间
completedAt?: number; // 完成时间
error?: string; // 错误信息
}
type SagaStepState =
| 'pending' // 等待执行
| 'executing' // 执行中
| 'completed' // 已完成
| 'compensating' // 补偿中
| 'compensated' // 已补偿
| 'failed' // 失败
```
### 查询 Saga 日志
```typescript
const log = await orchestrator.getSagaLog('saga_xxx');
if (log) {
console.log('Saga state:', log.state);
for (const step of log.steps) {
console.log(` ${step.name}: ${step.state}`);
}
}
```
## 跨服务器事务示例
### 场景:跨服购买
玩家在游戏服务器购买物品,货币在账户服务器,物品在背包服务器。
```typescript
const orchestrator = new SagaOrchestrator({
storage: redisStorage,
serverId: 'purchase-orchestrator',
});
async function crossServerPurchase(
playerId: string,
itemId: string,
price: number
): Promise<SagaResult> {
return orchestrator.execute([
// 步骤 1在账户服务器扣款
{
name: 'deduct_balance',
serverId: 'account-server',
data: { playerId, amount: price },
execute: async (data) => {
const result = await accountService.deduct(data.playerId, data.amount);
return { success: result.ok, error: result.error };
},
compensate: async (data) => {
await accountService.refund(data.playerId, data.amount);
},
},
// 步骤 2在背包服务器添加物品
{
name: 'add_item',
serverId: 'inventory-server',
data: { playerId, itemId },
execute: async (data) => {
const result = await inventoryService.addItem(data.playerId, data.itemId);
return { success: result.ok, error: result.error };
},
compensate: async (data) => {
await inventoryService.removeItem(data.playerId, data.itemId);
},
},
// 步骤 3记录购买日志
{
name: 'log_purchase',
serverId: 'log-server',
data: { playerId, itemId, price, timestamp: Date.now() },
execute: async (data) => {
await logService.recordPurchase(data);
return { success: true };
},
compensate: async (data) => {
await logService.cancelPurchase(data);
},
},
]);
}
```
### 场景:跨服交易
两个玩家在不同服务器上进行交易。
```typescript
async function crossServerTrade(
playerA: { id: string; server: string; items: string[] },
playerB: { id: string; server: string; items: string[] }
): Promise<SagaResult> {
const steps: SagaStep[] = [];
// 移除 A 的物品
for (const itemId of playerA.items) {
steps.push({
name: `remove_${playerA.id}_${itemId}`,
serverId: playerA.server,
data: { playerId: playerA.id, itemId },
execute: async (data) => {
return await inventoryService.removeItem(data.playerId, data.itemId);
},
compensate: async (data) => {
await inventoryService.addItem(data.playerId, data.itemId);
},
});
}
// 添加物品到 B
for (const itemId of playerA.items) {
steps.push({
name: `add_${playerB.id}_${itemId}`,
serverId: playerB.server,
data: { playerId: playerB.id, itemId },
execute: async (data) => {
return await inventoryService.addItem(data.playerId, data.itemId);
},
compensate: async (data) => {
await inventoryService.removeItem(data.playerId, data.itemId);
},
});
}
// 类似地处理 B 的物品...
return orchestrator.execute(steps);
}
```
## 恢复未完成的 Saga
服务器重启后恢复未完成的 Saga
```typescript
const orchestrator = new SagaOrchestrator({
storage: redisStorage,
serverId: 'my-orchestrator',
});
// 恢复未完成的 Saga会执行补偿
const recoveredCount = await orchestrator.recover();
console.log(`Recovered ${recoveredCount} sagas`);
```
## 最佳实践
### 1. 幂等性
确保所有操作都是幂等的:
```typescript
{
execute: async (data) => {
// 使用唯一 ID 确保幂等
const result = await service.process(data.requestId, data);
return { success: result.ok };
},
compensate: async (data) => {
// 补偿也要幂等
await service.rollback(data.requestId);
},
}
```
### 2. 超时处理
设置合适的超时时间:
```typescript
const orchestrator = new SagaOrchestrator({
timeout: 60000, // 跨服务器操作需要更长超时
});
```
### 3. 监控和告警
记录 Saga 执行结果:
```typescript
const result = await orchestrator.execute(steps);
if (!result.success) {
// 发送告警
alertService.send({
type: 'saga_failed',
sagaId: result.sagaId,
failedStep: result.failedStep,
error: result.error,
});
// 记录详细日志
const log = await orchestrator.getSagaLog(result.sagaId);
logger.error('Saga failed', { log });
}
```

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---
title: "事务系统 (Transaction)"
description: "游戏事务处理系统,支持商店购买、玩家交易、分布式事务"
---
`@esengine/transaction` 提供完整的游戏事务处理能力,基于 Saga 模式实现,支持商店购买、玩家交易、多步骤任务等场景,并提供 Redis/MongoDB 分布式事务支持。
## 概述
事务系统解决游戏中常见的数据一致性问题:
| 场景 | 问题 | 解决方案 |
|------|------|----------|
| 商店购买 | 扣款成功但物品未发放 | 原子事务,失败自动回滚 |
| 玩家交易 | 一方物品转移另一方未收到 | Saga 补偿机制 |
| 跨服操作 | 多服务器数据不一致 | 分布式锁 + 事务日志 |
## 安装
```bash
npm install @esengine/transaction
```
可选依赖(根据存储需求安装):
```bash
npm install ioredis # Redis 存储
npm install mongodb # MongoDB 存储
```
## 架构
```
┌─────────────────────────────────────────────────────────────────┐
│ Transaction Layer │
├─────────────────────────────────────────────────────────────────┤
│ TransactionManager - 事务管理器,协调事务生命周期 │
│ TransactionContext - 事务上下文,封装操作和状态 │
│ SagaOrchestrator - 分布式 Saga 编排器 │
├─────────────────────────────────────────────────────────────────┤
│ Storage Layer │
├─────────────────────────────────────────────────────────────────┤
│ MemoryStorage - 内存存储(开发/测试) │
│ RedisStorage - Redis分布式锁 + 缓存) │
│ MongoStorage - MongoDB持久化日志
├─────────────────────────────────────────────────────────────────┤
│ Operation Layer │
├─────────────────────────────────────────────────────────────────┤
│ CurrencyOperation - 货币操作 │
│ InventoryOperation - 背包操作 │
│ TradeOperation - 交易操作 │
└─────────────────────────────────────────────────────────────────┘
```
## 快速开始
### 基础用法
```typescript
import {
TransactionManager,
MemoryStorage,
CurrencyOperation,
InventoryOperation,
} from '@esengine/transaction';
// 创建事务管理器
const manager = new TransactionManager({
storage: new MemoryStorage(),
defaultTimeout: 10000,
});
// 执行事务
const result = await manager.run((tx) => {
// 扣除金币
tx.addOperation(new CurrencyOperation({
type: 'deduct',
playerId: 'player1',
currency: 'gold',
amount: 100,
}));
// 添加物品
tx.addOperation(new InventoryOperation({
type: 'add',
playerId: 'player1',
itemId: 'sword_001',
quantity: 1,
}));
});
if (result.success) {
console.log('购买成功!');
} else {
console.log('购买失败:', result.error);
}
```
### 玩家交易
```typescript
import { TradeOperation } from '@esengine/transaction';
const result = await manager.run((tx) => {
tx.addOperation(new TradeOperation({
tradeId: 'trade_001',
partyA: {
playerId: 'player1',
items: [{ itemId: 'sword', quantity: 1 }],
},
partyB: {
playerId: 'player2',
currencies: [{ currency: 'gold', amount: 1000 }],
},
}));
}, { timeout: 30000 });
```
### 使用 Redis 存储
```typescript
import Redis from 'ioredis';
import { TransactionManager, RedisStorage } from '@esengine/transaction';
const redis = new Redis('redis://localhost:6379');
const storage = new RedisStorage({ client: redis });
const manager = new TransactionManager({ storage });
```
### 使用 MongoDB 存储
```typescript
import { MongoClient } from 'mongodb';
import { TransactionManager, MongoStorage } from '@esengine/transaction';
const client = new MongoClient('mongodb://localhost:27017');
await client.connect();
const db = client.db('game');
const storage = new MongoStorage({ db });
await storage.ensureIndexes();
const manager = new TransactionManager({ storage });
```
## 与 Room 集成
```typescript
import { Room } from '@esengine/server';
import { withTransactions, CurrencyOperation, RedisStorage } from '@esengine/transaction';
class GameRoom extends withTransactions(Room, {
storage: new RedisStorage({ client: redisClient }),
}) {
@onMessage('Buy')
async handleBuy(data: { itemId: string }, player: Player) {
const result = await this.runTransaction((tx) => {
tx.addOperation(new CurrencyOperation({
type: 'deduct',
playerId: player.id,
currency: 'gold',
amount: getItemPrice(data.itemId),
}));
});
if (result.success) {
player.send('buy_success', { itemId: data.itemId });
} else {
player.send('buy_failed', { error: result.error });
}
}
}
```
## 文档导航
- [核心概念](/modules/transaction/core/) - 事务上下文、管理器、Saga 模式
- [存储层](/modules/transaction/storage/) - MemoryStorage、RedisStorage、MongoStorage
- [操作类](/modules/transaction/operations/) - 货币、背包、交易操作
- [分布式事务](/modules/transaction/distributed/) - Saga 编排器、跨服务器事务
- [API 参考](/modules/transaction/api/) - 完整 API 文档
## 服务令牌
用于依赖注入:
```typescript
import {
TransactionManagerToken,
TransactionStorageToken,
} from '@esengine/transaction';
const manager = services.get(TransactionManagerToken);
```
## 最佳实践
### 1. 操作粒度
```typescript
// ✅ 好:细粒度操作,便于回滚
tx.addOperation(new CurrencyOperation({ type: 'deduct', ... }));
tx.addOperation(new InventoryOperation({ type: 'add', ... }));
// ❌ 差:粗粒度操作,难以部分回滚
tx.addOperation(new ComplexPurchaseOperation({ ... }));
```
### 2. 超时设置
```typescript
// 简单操作:短超时
await manager.run(tx => { ... }, { timeout: 5000 });
// 复杂交易:长超时
await manager.run(tx => { ... }, { timeout: 30000 });
// 跨服务器:更长超时
await manager.run(tx => { ... }, { timeout: 60000, distributed: true });
```
### 3. 错误处理
```typescript
const result = await manager.run((tx) => { ... });
if (!result.success) {
// 记录日志
logger.error('Transaction failed', {
transactionId: result.transactionId,
error: result.error,
duration: result.duration,
});
// 通知用户
player.send('error', { message: getErrorMessage(result.error) });
}
```

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---
title: "操作类"
description: "内置的事务操作:货币、背包、交易"
---
## BaseOperation
所有操作类的基类,提供通用的实现模板。
```typescript
import { BaseOperation, ITransactionContext, OperationResult } from '@esengine/transaction';
class MyOperation extends BaseOperation<MyData, MyResult> {
readonly name = 'myOperation';
async validate(ctx: ITransactionContext): Promise<boolean> {
// 验证前置条件
return true;
}
async execute(ctx: ITransactionContext): Promise<OperationResult<MyResult>> {
// 执行操作
return this.success({ result: 'ok' });
// 或
return this.failure('Something went wrong', 'ERROR_CODE');
}
async compensate(ctx: ITransactionContext): Promise<void> {
// 回滚操作
}
}
```
## CurrencyOperation
处理货币的增加和扣除。
### 扣除货币
```typescript
import { CurrencyOperation } from '@esengine/transaction';
tx.addOperation(new CurrencyOperation({
type: 'deduct',
playerId: 'player1',
currency: 'gold',
amount: 100,
reason: 'purchase_item',
}));
```
### 增加货币
```typescript
tx.addOperation(new CurrencyOperation({
type: 'add',
playerId: 'player1',
currency: 'diamond',
amount: 50,
reason: 'daily_reward',
}));
```
### 操作数据
```typescript
interface CurrencyOperationData {
type: 'add' | 'deduct'; // 操作类型
playerId: string; // 玩家 ID
currency: string; // 货币类型
amount: number; // 数量
reason?: string; // 原因/来源
}
```
### 操作结果
```typescript
interface CurrencyOperationResult {
beforeBalance: number; // 操作前余额
afterBalance: number; // 操作后余额
}
```
### 自定义数据提供者
```typescript
interface ICurrencyProvider {
getBalance(playerId: string, currency: string): Promise<number>;
setBalance(playerId: string, currency: string, amount: number): Promise<void>;
}
class MyCurrencyProvider implements ICurrencyProvider {
async getBalance(playerId: string, currency: string): Promise<number> {
// 从数据库获取余额
return await db.getCurrency(playerId, currency);
}
async setBalance(playerId: string, currency: string, amount: number): Promise<void> {
// 保存到数据库
await db.setCurrency(playerId, currency, amount);
}
}
// 使用自定义提供者
const op = new CurrencyOperation({ ... });
op.setProvider(new MyCurrencyProvider());
tx.addOperation(op);
```
## InventoryOperation
处理物品的添加、移除和更新。
### 添加物品
```typescript
import { InventoryOperation } from '@esengine/transaction';
tx.addOperation(new InventoryOperation({
type: 'add',
playerId: 'player1',
itemId: 'sword_001',
quantity: 1,
properties: { enchant: 'fire' },
}));
```
### 移除物品
```typescript
tx.addOperation(new InventoryOperation({
type: 'remove',
playerId: 'player1',
itemId: 'potion_hp',
quantity: 5,
}));
```
### 更新物品
```typescript
tx.addOperation(new InventoryOperation({
type: 'update',
playerId: 'player1',
itemId: 'sword_001',
quantity: 1, // 可选,不传则保持原数量
properties: { enchant: 'lightning', level: 5 },
}));
```
### 操作数据
```typescript
interface InventoryOperationData {
type: 'add' | 'remove' | 'update'; // 操作类型
playerId: string; // 玩家 ID
itemId: string; // 物品 ID
quantity: number; // 数量
properties?: Record<string, unknown>; // 物品属性
reason?: string; // 原因/来源
}
```
### 操作结果
```typescript
interface InventoryOperationResult {
beforeItem?: ItemData; // 操作前物品
afterItem?: ItemData; // 操作后物品
}
interface ItemData {
itemId: string;
quantity: number;
properties?: Record<string, unknown>;
}
```
### 自定义数据提供者
```typescript
interface IInventoryProvider {
getItem(playerId: string, itemId: string): Promise<ItemData | null>;
setItem(playerId: string, itemId: string, item: ItemData | null): Promise<void>;
hasCapacity?(playerId: string, count: number): Promise<boolean>;
}
class MyInventoryProvider implements IInventoryProvider {
async getItem(playerId: string, itemId: string): Promise<ItemData | null> {
return await db.getItem(playerId, itemId);
}
async setItem(playerId: string, itemId: string, item: ItemData | null): Promise<void> {
if (item) {
await db.saveItem(playerId, itemId, item);
} else {
await db.deleteItem(playerId, itemId);
}
}
async hasCapacity(playerId: string, count: number): Promise<boolean> {
const current = await db.getItemCount(playerId);
const max = await db.getMaxCapacity(playerId);
return current + count <= max;
}
}
```
## TradeOperation
处理玩家之间的物品和货币交换。
### 基本用法
```typescript
import { TradeOperation } from '@esengine/transaction';
tx.addOperation(new TradeOperation({
tradeId: 'trade_001',
partyA: {
playerId: 'player1',
items: [{ itemId: 'sword', quantity: 1 }],
currencies: [{ currency: 'diamond', amount: 10 }],
},
partyB: {
playerId: 'player2',
currencies: [{ currency: 'gold', amount: 1000 }],
},
reason: 'player_trade',
}));
```
### 操作数据
```typescript
interface TradeOperationData {
tradeId: string; // 交易 ID
partyA: TradeParty; // 交易发起方
partyB: TradeParty; // 交易接收方
reason?: string; // 原因/备注
}
interface TradeParty {
playerId: string; // 玩家 ID
items?: TradeItem[]; // 给出的物品
currencies?: TradeCurrency[]; // 给出的货币
}
interface TradeItem {
itemId: string;
quantity: number;
}
interface TradeCurrency {
currency: string;
amount: number;
}
```
### 执行流程
TradeOperation 内部会生成以下子操作序列:
```
1. 移除 partyA 的物品
2. 添加 partyB 的物品(来自 partyA
3. 扣除 partyA 的货币
4. 增加 partyB 的货币(来自 partyA
5. 移除 partyB 的物品
6. 添加 partyA 的物品(来自 partyB
7. 扣除 partyB 的货币
8. 增加 partyA 的货币(来自 partyB
```
任何一步失败都会回滚之前的所有操作。
### 使用自定义提供者
```typescript
const op = new TradeOperation({ ... });
op.setProvider({
currencyProvider: new MyCurrencyProvider(),
inventoryProvider: new MyInventoryProvider(),
});
tx.addOperation(op);
```
## 创建工厂函数
每个操作类都提供工厂函数:
```typescript
import {
createCurrencyOperation,
createInventoryOperation,
createTradeOperation,
} from '@esengine/transaction';
tx.addOperation(createCurrencyOperation({
type: 'deduct',
playerId: 'player1',
currency: 'gold',
amount: 100,
}));
tx.addOperation(createInventoryOperation({
type: 'add',
playerId: 'player1',
itemId: 'sword',
quantity: 1,
}));
```

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---
title: "存储层"
description: "事务存储接口和实现MemoryStorage、RedisStorage、MongoStorage"
---
## 存储接口
所有存储实现都需要实现 `ITransactionStorage` 接口:
```typescript
interface ITransactionStorage {
// 生命周期
close?(): Promise<void>;
// 分布式锁
acquireLock(key: string, ttl: number): Promise<string | null>;
releaseLock(key: string, token: string): Promise<boolean>;
// 事务日志
saveTransaction(tx: TransactionLog): Promise<void>;
getTransaction(id: string): Promise<TransactionLog | null>;
updateTransactionState(id: string, state: TransactionState): Promise<void>;
updateOperationState(txId: string, opIndex: number, state: string, error?: string): Promise<void>;
getPendingTransactions(serverId?: string): Promise<TransactionLog[]>;
deleteTransaction(id: string): Promise<void>;
// 数据操作
get<T>(key: string): Promise<T | null>;
set<T>(key: string, value: T, ttl?: number): Promise<void>;
delete(key: string): Promise<boolean>;
}
```
## MemoryStorage
内存存储,适用于开发和测试环境。
```typescript
import { MemoryStorage } from '@esengine/transaction';
const storage = new MemoryStorage({
maxTransactions: 1000, // 最大事务日志数量
});
const manager = new TransactionManager({ storage });
```
### 特点
- ✅ 无需外部依赖
- ✅ 快速,适合开发调试
- ❌ 数据仅保存在内存中
- ❌ 不支持真正的分布式锁
- ❌ 服务重启后数据丢失
### 测试辅助
```typescript
// 清空所有数据
storage.clear();
// 获取事务数量
console.log(storage.transactionCount);
```
## RedisStorage
Redis 存储,适用于生产环境的分布式系统。使用工厂模式实现惰性连接。
```typescript
import Redis from 'ioredis';
import { RedisStorage } from '@esengine/transaction';
// 工厂模式:惰性连接,首次操作时才创建连接
const storage = new RedisStorage({
factory: () => new Redis('redis://localhost:6379'),
prefix: 'tx:', // 键前缀
transactionTTL: 86400, // 事务日志过期时间(秒)
});
const manager = new TransactionManager({ storage });
// 使用后关闭连接
await storage.close();
// 或使用 await using 自动关闭 (TypeScript 5.2+)
await using storage = new RedisStorage({
factory: () => new Redis('redis://localhost:6379')
});
// 作用域结束时自动关闭
```
### 特点
- ✅ 高性能分布式锁
- ✅ 快速读写
- ✅ 支持 TTL 自动过期
- ✅ 适合高并发场景
- ❌ 需要 Redis 服务器
### 分布式锁实现
使用 Redis `SET NX EX` 实现分布式锁:
```typescript
// 获取锁(原子操作)
SET tx:lock:player:123 <token> NX EX 10
// 释放锁Lua 脚本保证原子性)
if redis.call("get", KEYS[1]) == ARGV[1] then
return redis.call("del", KEYS[1])
else
return 0
end
```
### 键结构
```
tx:lock:{key} - 分布式锁
tx:tx:{id} - 事务日志
tx:server:{id}:txs - 服务器事务索引
tx:data:{key} - 业务数据
```
## MongoStorage
MongoDB 存储,适用于需要持久化和复杂查询的场景。使用工厂模式实现惰性连接。
```typescript
import { MongoClient } from 'mongodb';
import { MongoStorage } from '@esengine/transaction';
// 工厂模式:惰性连接,首次操作时才创建连接
const storage = new MongoStorage({
factory: async () => {
const client = new MongoClient('mongodb://localhost:27017');
await client.connect();
return client;
},
database: 'game',
transactionCollection: 'transactions', // 事务日志集合
dataCollection: 'transaction_data', // 业务数据集合
lockCollection: 'transaction_locks', // 锁集合
});
// 创建索引(首次运行时执行)
await storage.ensureIndexes();
const manager = new TransactionManager({ storage });
// 使用后关闭连接
await storage.close();
// 或使用 await using 自动关闭 (TypeScript 5.2+)
await using storage = new MongoStorage({ ... });
```
### 特点
- ✅ 持久化存储
- ✅ 支持复杂查询
- ✅ 事务日志可追溯
- ✅ 适合需要审计的场景
- ❌ 相比 Redis 性能略低
- ❌ 需要 MongoDB 服务器
### 索引结构
```javascript
// transactions 集合
{ state: 1 }
{ 'metadata.serverId': 1 }
{ createdAt: 1 }
// transaction_locks 集合
{ expireAt: 1 } // TTL 索引
// transaction_data 集合
{ expireAt: 1 } // TTL 索引
```
### 分布式锁实现
使用 MongoDB 唯一索引实现分布式锁:
```typescript
// 获取锁
db.transaction_locks.insertOne({
_id: 'player:123',
token: '<token>',
expireAt: new Date(Date.now() + 10000)
});
// 如果键已存在,检查是否过期
db.transaction_locks.updateOne(
{ _id: 'player:123', expireAt: { $lt: new Date() } },
{ $set: { token: '<token>', expireAt: new Date(Date.now() + 10000) } }
);
```
## 存储选择指南
| 场景 | 推荐存储 | 理由 |
|------|----------|------|
| 开发/测试 | MemoryStorage | 无依赖,快速启动 |
| 单机生产 | RedisStorage | 高性能,简单 |
| 分布式系统 | RedisStorage | 真正的分布式锁 |
| 需要审计 | MongoStorage | 持久化日志 |
| 混合需求 | Redis + Mongo | Redis 做锁Mongo 做日志 |
## 自定义存储
实现 `ITransactionStorage` 接口创建自定义存储:
```typescript
import { ITransactionStorage, TransactionLog, TransactionState } from '@esengine/transaction';
class MyCustomStorage implements ITransactionStorage {
async acquireLock(key: string, ttl: number): Promise<string | null> {
// 实现分布式锁获取逻辑
}
async releaseLock(key: string, token: string): Promise<boolean> {
// 实现分布式锁释放逻辑
}
async saveTransaction(tx: TransactionLog): Promise<void> {
// 保存事务日志
}
// ... 实现其他方法
}
```

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import { describe, it, expect, beforeEach } from 'vitest';
import { AStarPathfinder } from '../../src/core/AStarPathfinder';
import { GridMap } from '../../src/grid/GridMap';
describe('AStarPathfinder', () => {
let grid: GridMap;
let pathfinder: AStarPathfinder;
beforeEach(() => {
grid = new GridMap(10, 10);
pathfinder = new AStarPathfinder(grid);
});
// =========================================================================
// Basic Pathfinding
// =========================================================================
describe('basic pathfinding', () => {
it('should find path between adjacent nodes', () => {
const result = pathfinder.findPath(0, 0, 1, 0);
expect(result.found).toBe(true);
expect(result.path.length).toBe(2);
expect(result.path[0]).toEqual({ x: 0, y: 0 });
expect(result.path[1]).toEqual({ x: 1, y: 0 });
});
it('should return start position for same start and end', () => {
const result = pathfinder.findPath(5, 5, 5, 5);
expect(result.found).toBe(true);
expect(result.path.length).toBe(1);
expect(result.path[0]).toEqual({ x: 5, y: 5 });
expect(result.cost).toBe(0);
});
it('should find diagonal path', () => {
const result = pathfinder.findPath(0, 0, 5, 5);
expect(result.found).toBe(true);
expect(result.path.length).toBeGreaterThan(1);
expect(result.path[0]).toEqual({ x: 0, y: 0 });
expect(result.path[result.path.length - 1]).toEqual({ x: 5, y: 5 });
});
it('should find path across grid', () => {
const result = pathfinder.findPath(0, 0, 9, 9);
expect(result.found).toBe(true);
expect(result.path[0]).toEqual({ x: 0, y: 0 });
expect(result.path[result.path.length - 1]).toEqual({ x: 9, y: 9 });
});
});
// =========================================================================
// Obstacles
// =========================================================================
describe('obstacles', () => {
it('should find path around single obstacle', () => {
grid.setWalkable(5, 5, false);
const result = pathfinder.findPath(4, 5, 6, 5);
expect(result.found).toBe(true);
expect(result.path.length).toBeGreaterThan(2);
});
it('should find path around wall', () => {
// Create vertical wall
for (let y = 2; y <= 7; y++) {
grid.setWalkable(5, y, false);
}
const result = pathfinder.findPath(3, 5, 7, 5);
expect(result.found).toBe(true);
// Path should go around the wall
expect(result.path.every(p => p.x !== 5 || p.y < 2 || p.y > 7)).toBe(true);
});
it('should return empty path when blocked', () => {
// Block completely around start
grid.setWalkable(1, 0, false);
grid.setWalkable(0, 1, false);
grid.setWalkable(1, 1, false);
const result = pathfinder.findPath(0, 0, 9, 9);
expect(result.found).toBe(false);
expect(result.path.length).toBe(0);
});
it('should return empty path when start is blocked', () => {
grid.setWalkable(0, 0, false);
const result = pathfinder.findPath(0, 0, 5, 5);
expect(result.found).toBe(false);
});
it('should return empty path when end is blocked', () => {
grid.setWalkable(5, 5, false);
const result = pathfinder.findPath(0, 0, 5, 5);
expect(result.found).toBe(false);
});
});
// =========================================================================
// Out of Bounds
// =========================================================================
describe('out of bounds', () => {
it('should return empty path for out of bounds start', () => {
const result = pathfinder.findPath(-1, 0, 5, 5);
expect(result.found).toBe(false);
});
it('should return empty path for out of bounds end', () => {
const result = pathfinder.findPath(0, 0, 100, 100);
expect(result.found).toBe(false);
});
});
// =========================================================================
// Cost Calculation
// =========================================================================
describe('cost calculation', () => {
it('should calculate correct cost for straight path', () => {
const grid4 = new GridMap(10, 10, { allowDiagonal: false });
const pathfinder4 = new AStarPathfinder(grid4);
const result = pathfinder4.findPath(0, 0, 5, 0);
expect(result.found).toBe(true);
expect(result.cost).toBe(5);
});
it('should prefer lower cost paths', () => {
// Create high cost area
for (let y = 0; y < 10; y++) {
grid.setCost(5, y, 10);
}
const result = pathfinder.findPath(4, 5, 6, 5);
// Should go around the high cost column if possible
expect(result.found).toBe(true);
});
});
// =========================================================================
// Options
// =========================================================================
describe('options', () => {
it('should respect maxNodes limit', () => {
// Large grid with path
const largeGrid = new GridMap(100, 100);
const largePF = new AStarPathfinder(largeGrid);
const result = largePF.findPath(0, 0, 99, 99, { maxNodes: 10 });
// Should fail due to node limit
expect(result.nodesSearched).toBeLessThanOrEqual(10);
});
it('should use heuristic weight', () => {
const result1 = pathfinder.findPath(0, 0, 9, 9, { heuristicWeight: 1.0 });
const result2 = pathfinder.findPath(0, 0, 9, 9, { heuristicWeight: 2.0 });
expect(result1.found).toBe(true);
expect(result2.found).toBe(true);
// Higher weight may search fewer nodes but may not be optimal
expect(result2.nodesSearched).toBeLessThanOrEqual(result1.nodesSearched);
});
});
// =========================================================================
// Clear
// =========================================================================
describe('clear', () => {
it('should allow reuse after clear', () => {
const result1 = pathfinder.findPath(0, 0, 5, 5);
expect(result1.found).toBe(true);
pathfinder.clear();
const result2 = pathfinder.findPath(0, 0, 9, 9);
expect(result2.found).toBe(true);
});
});
// =========================================================================
// Maze
// =========================================================================
describe('maze solving', () => {
it('should solve simple maze', () => {
const mazeStr = `
..........
.########.
..........
.########.
..........
.########.
..........
.########.
..........
..........`.trim();
grid.loadFromString(mazeStr);
const result = pathfinder.findPath(0, 0, 9, 9);
expect(result.found).toBe(true);
// Path should not pass through walls
for (const point of result.path) {
expect(grid.isWalkable(point.x, point.y)).toBe(true);
}
});
});
// =========================================================================
// Path Quality
// =========================================================================
describe('path quality', () => {
it('should find shortest path in open area', () => {
const result = pathfinder.findPath(0, 0, 3, 0);
expect(result.found).toBe(true);
// Straight line should be 4 points
expect(result.path.length).toBe(4);
});
it('should find optimal diagonal path', () => {
const result = pathfinder.findPath(0, 0, 3, 3);
expect(result.found).toBe(true);
// Pure diagonal should be 4 points
expect(result.path.length).toBe(4);
});
});
// =========================================================================
// Nodes Searched
// =========================================================================
describe('nodesSearched', () => {
it('should track nodes searched', () => {
const result = pathfinder.findPath(0, 0, 9, 9);
expect(result.nodesSearched).toBeGreaterThan(0);
});
it('should search only 1 node for same position', () => {
const result = pathfinder.findPath(5, 5, 5, 5);
expect(result.nodesSearched).toBe(1);
});
});
});

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import { describe, it, expect, beforeEach } from 'vitest';
import { BinaryHeap } from '../../src/core/BinaryHeap';
describe('BinaryHeap', () => {
let heap: BinaryHeap<number>;
beforeEach(() => {
heap = new BinaryHeap<number>((a, b) => a - b);
});
// =========================================================================
// Basic Operations
// =========================================================================
describe('basic operations', () => {
it('should start empty', () => {
expect(heap.isEmpty).toBe(true);
expect(heap.size).toBe(0);
});
it('should push and pop single element', () => {
heap.push(5);
expect(heap.isEmpty).toBe(false);
expect(heap.size).toBe(1);
expect(heap.pop()).toBe(5);
expect(heap.isEmpty).toBe(true);
});
it('should return undefined when popping empty heap', () => {
expect(heap.pop()).toBeUndefined();
});
it('should peek without removing', () => {
heap.push(5);
expect(heap.peek()).toBe(5);
expect(heap.size).toBe(1);
});
it('should return undefined when peeking empty heap', () => {
expect(heap.peek()).toBeUndefined();
});
});
// =========================================================================
// Min-Heap Property
// =========================================================================
describe('min-heap property', () => {
it('should always pop minimum element', () => {
heap.push(5);
heap.push(3);
heap.push(7);
heap.push(1);
heap.push(9);
expect(heap.pop()).toBe(1);
expect(heap.pop()).toBe(3);
expect(heap.pop()).toBe(5);
expect(heap.pop()).toBe(7);
expect(heap.pop()).toBe(9);
});
it('should handle duplicate values', () => {
heap.push(3);
heap.push(3);
heap.push(3);
expect(heap.pop()).toBe(3);
expect(heap.pop()).toBe(3);
expect(heap.pop()).toBe(3);
expect(heap.isEmpty).toBe(true);
});
it('should handle already sorted input', () => {
heap.push(1);
heap.push(2);
heap.push(3);
heap.push(4);
heap.push(5);
expect(heap.pop()).toBe(1);
expect(heap.pop()).toBe(2);
expect(heap.pop()).toBe(3);
expect(heap.pop()).toBe(4);
expect(heap.pop()).toBe(5);
});
it('should handle reverse sorted input', () => {
heap.push(5);
heap.push(4);
heap.push(3);
heap.push(2);
heap.push(1);
expect(heap.pop()).toBe(1);
expect(heap.pop()).toBe(2);
expect(heap.pop()).toBe(3);
expect(heap.pop()).toBe(4);
expect(heap.pop()).toBe(5);
});
});
// =========================================================================
// Update Operation
// =========================================================================
describe('update operation', () => {
it('should update element position after value change', () => {
interface Item { value: number }
const itemHeap = new BinaryHeap<Item>((a, b) => a.value - b.value);
const item1 = { value: 5 };
const item2 = { value: 3 };
const item3 = { value: 7 };
itemHeap.push(item1);
itemHeap.push(item2);
itemHeap.push(item3);
// Change item1 to be smallest
item1.value = 1;
itemHeap.update(item1);
expect(itemHeap.pop()).toBe(item1);
expect(itemHeap.pop()).toBe(item2);
expect(itemHeap.pop()).toBe(item3);
});
it('should handle update of non-existent element gracefully', () => {
heap.push(1);
heap.push(2);
heap.update(999); // Should not throw
expect(heap.size).toBe(2);
});
});
// =========================================================================
// Contains Operation
// =========================================================================
describe('contains operation', () => {
it('should check if element exists', () => {
heap.push(1);
heap.push(2);
heap.push(3);
expect(heap.contains(2)).toBe(true);
expect(heap.contains(5)).toBe(false);
});
it('should return false for empty heap', () => {
expect(heap.contains(1)).toBe(false);
});
});
// =========================================================================
// Clear Operation
// =========================================================================
describe('clear operation', () => {
it('should clear all elements', () => {
heap.push(1);
heap.push(2);
heap.push(3);
heap.clear();
expect(heap.isEmpty).toBe(true);
expect(heap.size).toBe(0);
});
});
// =========================================================================
// Custom Comparator
// =========================================================================
describe('custom comparator', () => {
it('should work as max-heap with reversed comparator', () => {
const maxHeap = new BinaryHeap<number>((a, b) => b - a);
maxHeap.push(5);
maxHeap.push(3);
maxHeap.push(7);
maxHeap.push(1);
maxHeap.push(9);
expect(maxHeap.pop()).toBe(9);
expect(maxHeap.pop()).toBe(7);
expect(maxHeap.pop()).toBe(5);
expect(maxHeap.pop()).toBe(3);
expect(maxHeap.pop()).toBe(1);
});
it('should work with object comparator', () => {
interface Task { priority: number; name: string }
const taskHeap = new BinaryHeap<Task>((a, b) => a.priority - b.priority);
taskHeap.push({ priority: 3, name: 'C' });
taskHeap.push({ priority: 1, name: 'A' });
taskHeap.push({ priority: 2, name: 'B' });
expect(taskHeap.pop()?.name).toBe('A');
expect(taskHeap.pop()?.name).toBe('B');
expect(taskHeap.pop()?.name).toBe('C');
});
});
// =========================================================================
// Large Dataset
// =========================================================================
describe('large dataset', () => {
it('should handle 1000 random elements', () => {
const elements: number[] = [];
for (let i = 0; i < 1000; i++) {
const value = Math.floor(Math.random() * 10000);
elements.push(value);
heap.push(value);
}
elements.sort((a, b) => a - b);
for (const expected of elements) {
expect(heap.pop()).toBe(expected);
}
});
});
});

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import { describe, it, expect } from 'vitest';
import {
manhattanDistance,
euclideanDistance,
chebyshevDistance,
octileDistance,
createPoint
} from '../../src/core/IPathfinding';
describe('Heuristic Functions', () => {
// =========================================================================
// Manhattan Distance
// =========================================================================
describe('manhattanDistance', () => {
it('should return 0 for same point', () => {
const p = createPoint(5, 5);
expect(manhattanDistance(p, p)).toBe(0);
});
it('should calculate horizontal distance', () => {
const a = createPoint(0, 0);
const b = createPoint(5, 0);
expect(manhattanDistance(a, b)).toBe(5);
});
it('should calculate vertical distance', () => {
const a = createPoint(0, 0);
const b = createPoint(0, 5);
expect(manhattanDistance(a, b)).toBe(5);
});
it('should calculate diagonal distance', () => {
const a = createPoint(0, 0);
const b = createPoint(3, 4);
expect(manhattanDistance(a, b)).toBe(7); // |3| + |4| = 7
});
it('should handle negative coordinates', () => {
const a = createPoint(-2, -3);
const b = createPoint(2, 3);
expect(manhattanDistance(a, b)).toBe(10); // |4| + |6| = 10
});
it('should be symmetric', () => {
const a = createPoint(1, 2);
const b = createPoint(4, 6);
expect(manhattanDistance(a, b)).toBe(manhattanDistance(b, a));
});
});
// =========================================================================
// Euclidean Distance
// =========================================================================
describe('euclideanDistance', () => {
it('should return 0 for same point', () => {
const p = createPoint(5, 5);
expect(euclideanDistance(p, p)).toBe(0);
});
it('should calculate horizontal distance', () => {
const a = createPoint(0, 0);
const b = createPoint(5, 0);
expect(euclideanDistance(a, b)).toBe(5);
});
it('should calculate vertical distance', () => {
const a = createPoint(0, 0);
const b = createPoint(0, 5);
expect(euclideanDistance(a, b)).toBe(5);
});
it('should calculate 3-4-5 triangle', () => {
const a = createPoint(0, 0);
const b = createPoint(3, 4);
expect(euclideanDistance(a, b)).toBe(5);
});
it('should calculate diagonal distance', () => {
const a = createPoint(0, 0);
const b = createPoint(1, 1);
expect(euclideanDistance(a, b)).toBeCloseTo(Math.SQRT2, 10);
});
it('should handle negative coordinates', () => {
const a = createPoint(-3, -4);
const b = createPoint(0, 0);
expect(euclideanDistance(a, b)).toBe(5);
});
it('should be symmetric', () => {
const a = createPoint(1, 2);
const b = createPoint(4, 6);
expect(euclideanDistance(a, b)).toBeCloseTo(euclideanDistance(b, a), 10);
});
});
// =========================================================================
// Chebyshev Distance
// =========================================================================
describe('chebyshevDistance', () => {
it('should return 0 for same point', () => {
const p = createPoint(5, 5);
expect(chebyshevDistance(p, p)).toBe(0);
});
it('should calculate horizontal distance', () => {
const a = createPoint(0, 0);
const b = createPoint(5, 0);
expect(chebyshevDistance(a, b)).toBe(5);
});
it('should calculate vertical distance', () => {
const a = createPoint(0, 0);
const b = createPoint(0, 5);
expect(chebyshevDistance(a, b)).toBe(5);
});
it('should calculate diagonal as max of dx, dy', () => {
const a = createPoint(0, 0);
const b = createPoint(3, 4);
expect(chebyshevDistance(a, b)).toBe(4); // max(3, 4) = 4
});
it('should return same value for equal dx and dy', () => {
const a = createPoint(0, 0);
const b = createPoint(5, 5);
expect(chebyshevDistance(a, b)).toBe(5);
});
it('should be symmetric', () => {
const a = createPoint(1, 2);
const b = createPoint(4, 6);
expect(chebyshevDistance(a, b)).toBe(chebyshevDistance(b, a));
});
});
// =========================================================================
// Octile Distance
// =========================================================================
describe('octileDistance', () => {
it('should return 0 for same point', () => {
const p = createPoint(5, 5);
expect(octileDistance(p, p)).toBe(0);
});
it('should calculate horizontal distance', () => {
const a = createPoint(0, 0);
const b = createPoint(5, 0);
expect(octileDistance(a, b)).toBe(5);
});
it('should calculate vertical distance', () => {
const a = createPoint(0, 0);
const b = createPoint(0, 5);
expect(octileDistance(a, b)).toBe(5);
});
it('should calculate pure diagonal distance', () => {
const a = createPoint(0, 0);
const b = createPoint(5, 5);
// 5 diagonal moves = 5 * sqrt(2)
expect(octileDistance(a, b)).toBeCloseTo(5 * Math.SQRT2, 10);
});
it('should calculate mixed diagonal and straight', () => {
const a = createPoint(0, 0);
const b = createPoint(3, 5);
// 3 diagonal + 2 straight = 3*sqrt(2) + 2
const expected = 3 * Math.SQRT2 + 2;
expect(octileDistance(a, b)).toBeCloseTo(expected, 10);
});
it('should be symmetric', () => {
const a = createPoint(1, 2);
const b = createPoint(4, 6);
expect(octileDistance(a, b)).toBeCloseTo(octileDistance(b, a), 10);
});
it('should be between Manhattan and Euclidean for diagonal', () => {
const a = createPoint(0, 0);
const b = createPoint(3, 4);
const manhattan = manhattanDistance(a, b);
const euclidean = euclideanDistance(a, b);
const octile = octileDistance(a, b);
expect(octile).toBeLessThan(manhattan);
expect(octile).toBeGreaterThan(euclidean);
});
});
// =========================================================================
// createPoint
// =========================================================================
describe('createPoint', () => {
it('should create point with correct coordinates', () => {
const p = createPoint(3, 4);
expect(p.x).toBe(3);
expect(p.y).toBe(4);
});
it('should handle negative coordinates', () => {
const p = createPoint(-5, -10);
expect(p.x).toBe(-5);
expect(p.y).toBe(-10);
});
it('should handle decimal coordinates', () => {
const p = createPoint(3.5, 4.7);
expect(p.x).toBe(3.5);
expect(p.y).toBe(4.7);
});
});
});

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import { describe, it, expect, beforeEach } from 'vitest';
import { GridMap, GridNode, DIRECTIONS_4, DIRECTIONS_8 } from '../../src/grid/GridMap';
describe('GridMap', () => {
let grid: GridMap;
beforeEach(() => {
grid = new GridMap(10, 10);
});
// =========================================================================
// Construction
// =========================================================================
describe('construction', () => {
it('should create grid with correct dimensions', () => {
expect(grid.width).toBe(10);
expect(grid.height).toBe(10);
});
it('should have all nodes walkable by default', () => {
for (let y = 0; y < 10; y++) {
for (let x = 0; x < 10; x++) {
expect(grid.isWalkable(x, y)).toBe(true);
}
}
});
it('should create small grid', () => {
const small = new GridMap(1, 1);
expect(small.width).toBe(1);
expect(small.height).toBe(1);
expect(small.getNodeAt(0, 0)).not.toBeNull();
});
});
// =========================================================================
// Node Access
// =========================================================================
describe('getNodeAt', () => {
it('should return node at valid position', () => {
const node = grid.getNodeAt(5, 5);
expect(node).not.toBeNull();
expect(node?.position.x).toBe(5);
expect(node?.position.y).toBe(5);
});
it('should return null for out of bounds', () => {
expect(grid.getNodeAt(-1, 0)).toBeNull();
expect(grid.getNodeAt(0, -1)).toBeNull();
expect(grid.getNodeAt(10, 0)).toBeNull();
expect(grid.getNodeAt(0, 10)).toBeNull();
});
it('should return node with correct id', () => {
const node = grid.getNodeAt(3, 4);
expect(node?.id).toBe('3,4');
});
});
// =========================================================================
// Walkability
// =========================================================================
describe('walkability', () => {
it('should set and get walkability', () => {
grid.setWalkable(5, 5, false);
expect(grid.isWalkable(5, 5)).toBe(false);
grid.setWalkable(5, 5, true);
expect(grid.isWalkable(5, 5)).toBe(true);
});
it('should return false for out of bounds', () => {
expect(grid.isWalkable(-1, 0)).toBe(false);
expect(grid.isWalkable(100, 100)).toBe(false);
});
it('should handle setWalkable on invalid position gracefully', () => {
grid.setWalkable(-1, -1, false); // Should not throw
});
});
// =========================================================================
// Cost
// =========================================================================
describe('cost', () => {
it('should set and get cost', () => {
grid.setCost(5, 5, 2.5);
const node = grid.getNodeAt(5, 5);
expect(node?.cost).toBe(2.5);
});
it('should default cost to 1', () => {
const node = grid.getNodeAt(5, 5);
expect(node?.cost).toBe(1);
});
});
// =========================================================================
// Neighbors (8-direction)
// =========================================================================
describe('getNeighbors (8-direction)', () => {
it('should return 8 neighbors for center node', () => {
const node = grid.getNodeAt(5, 5)!;
const neighbors = grid.getNeighbors(node);
expect(neighbors.length).toBe(8);
});
it('should return 3 neighbors for corner', () => {
const node = grid.getNodeAt(0, 0)!;
const neighbors = grid.getNeighbors(node);
expect(neighbors.length).toBe(3);
});
it('should return 5 neighbors for edge', () => {
const node = grid.getNodeAt(5, 0)!;
const neighbors = grid.getNeighbors(node);
expect(neighbors.length).toBe(5);
});
it('should not include blocked neighbors', () => {
grid.setWalkable(6, 5, false);
const node = grid.getNodeAt(5, 5)!;
const neighbors = grid.getNeighbors(node);
// 8 - 1 blocked - 2 diagonals (corner cutting) = 5
expect(neighbors.length).toBe(5);
expect(neighbors.find(n => n.x === 6 && n.y === 5)).toBeUndefined();
});
it('should avoid corner cutting by default', () => {
// Block horizontal neighbor
grid.setWalkable(6, 5, false);
const node = grid.getNodeAt(5, 5)!;
const neighbors = grid.getNeighbors(node);
// Should not include diagonal (6,4) and (6,6) due to corner cutting
expect(neighbors.find(n => n.x === 6 && n.y === 4)).toBeUndefined();
expect(neighbors.find(n => n.x === 6 && n.y === 6)).toBeUndefined();
});
});
// =========================================================================
// Neighbors (4-direction)
// =========================================================================
describe('getNeighbors (4-direction)', () => {
let grid4: GridMap;
beforeEach(() => {
grid4 = new GridMap(10, 10, { allowDiagonal: false });
});
it('should return 4 neighbors for center node', () => {
const node = grid4.getNodeAt(5, 5)!;
const neighbors = grid4.getNeighbors(node);
expect(neighbors.length).toBe(4);
});
it('should return 2 neighbors for corner', () => {
const node = grid4.getNodeAt(0, 0)!;
const neighbors = grid4.getNeighbors(node);
expect(neighbors.length).toBe(2);
});
it('should return 3 neighbors for edge', () => {
const node = grid4.getNodeAt(5, 0)!;
const neighbors = grid4.getNeighbors(node);
expect(neighbors.length).toBe(3);
});
});
// =========================================================================
// Movement Cost
// =========================================================================
describe('getMovementCost', () => {
it('should return 1 for cardinal movement', () => {
const from = grid.getNodeAt(5, 5)!;
const to = grid.getNodeAt(6, 5)!;
expect(grid.getMovementCost(from, to)).toBe(1);
});
it('should return sqrt(2) for diagonal movement', () => {
const from = grid.getNodeAt(5, 5)!;
const to = grid.getNodeAt(6, 6)!;
expect(grid.getMovementCost(from, to)).toBeCloseTo(Math.SQRT2, 10);
});
it('should factor in destination cost', () => {
grid.setCost(6, 5, 2);
const from = grid.getNodeAt(5, 5)!;
const to = grid.getNodeAt(6, 5)!;
expect(grid.getMovementCost(from, to)).toBe(2);
});
});
// =========================================================================
// Load from Array
// =========================================================================
describe('loadFromArray', () => {
it('should load walkability from 2D array', () => {
const data = [
[0, 0, 1],
[0, 1, 0],
[1, 0, 0]
];
const small = new GridMap(3, 3);
small.loadFromArray(data);
expect(small.isWalkable(0, 0)).toBe(true);
expect(small.isWalkable(2, 0)).toBe(false);
expect(small.isWalkable(1, 1)).toBe(false);
expect(small.isWalkable(0, 2)).toBe(false);
});
it('should handle partial data', () => {
const data = [[0, 1]];
grid.loadFromArray(data);
expect(grid.isWalkable(0, 0)).toBe(true);
expect(grid.isWalkable(1, 0)).toBe(false);
});
});
// =========================================================================
// Load from String
// =========================================================================
describe('loadFromString', () => {
it('should load walkability from string', () => {
const mapStr = `
..#
.#.
#..`.trim();
const small = new GridMap(3, 3);
small.loadFromString(mapStr);
expect(small.isWalkable(0, 0)).toBe(true);
expect(small.isWalkable(2, 0)).toBe(false);
expect(small.isWalkable(1, 1)).toBe(false);
expect(small.isWalkable(0, 2)).toBe(false);
});
});
// =========================================================================
// toString
// =========================================================================
describe('toString', () => {
it('should export grid as string', () => {
const small = new GridMap(3, 2);
small.setWalkable(1, 0, false);
const expected = '.#.\n...\n';
expect(small.toString()).toBe(expected);
});
});
// =========================================================================
// Reset
// =========================================================================
describe('reset', () => {
it('should reset all nodes to walkable', () => {
grid.setWalkable(5, 5, false);
grid.setCost(3, 3, 5);
grid.reset();
expect(grid.isWalkable(5, 5)).toBe(true);
expect(grid.getNodeAt(3, 3)?.cost).toBe(1);
});
});
// =========================================================================
// setRectWalkable
// =========================================================================
describe('setRectWalkable', () => {
it('should set rectangle region walkability', () => {
grid.setRectWalkable(2, 2, 3, 3, false);
for (let y = 2; y < 5; y++) {
for (let x = 2; x < 5; x++) {
expect(grid.isWalkable(x, y)).toBe(false);
}
}
// Outside should still be walkable
expect(grid.isWalkable(1, 2)).toBe(true);
expect(grid.isWalkable(5, 2)).toBe(true);
});
});
// =========================================================================
// Bounds Checking
// =========================================================================
describe('isInBounds', () => {
it('should return true for valid coordinates', () => {
expect(grid.isInBounds(0, 0)).toBe(true);
expect(grid.isInBounds(9, 9)).toBe(true);
expect(grid.isInBounds(5, 5)).toBe(true);
});
it('should return false for invalid coordinates', () => {
expect(grid.isInBounds(-1, 0)).toBe(false);
expect(grid.isInBounds(0, -1)).toBe(false);
expect(grid.isInBounds(10, 0)).toBe(false);
expect(grid.isInBounds(0, 10)).toBe(false);
});
});
});
describe('GridNode', () => {
it('should create node with correct properties', () => {
const node = new GridNode(3, 4, true, 2);
expect(node.x).toBe(3);
expect(node.y).toBe(4);
expect(node.walkable).toBe(true);
expect(node.cost).toBe(2);
expect(node.id).toBe('3,4');
expect(node.position.x).toBe(3);
expect(node.position.y).toBe(4);
});
it('should default to walkable with cost 1', () => {
const node = new GridNode(0, 0);
expect(node.walkable).toBe(true);
expect(node.cost).toBe(1);
});
});
describe('Direction Constants', () => {
it('DIRECTIONS_4 should have 4 cardinal directions', () => {
expect(DIRECTIONS_4.length).toBe(4);
});
it('DIRECTIONS_8 should have 8 directions', () => {
expect(DIRECTIONS_8.length).toBe(8);
});
});

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import { describe, it, expect, beforeEach } from 'vitest';
import { NavMesh, createNavMesh } from '../../src/navmesh/NavMesh';
import { createPoint } from '../../src/core/IPathfinding';
describe('NavMesh', () => {
let navmesh: NavMesh;
beforeEach(() => {
navmesh = new NavMesh();
});
// =========================================================================
// Polygon Management
// =========================================================================
describe('polygon management', () => {
it('should add polygon and return id', () => {
const id = navmesh.addPolygon([
createPoint(0, 0),
createPoint(10, 0),
createPoint(10, 10),
createPoint(0, 10)
]);
expect(id).toBe(0);
expect(navmesh.polygonCount).toBe(1);
});
it('should add multiple polygons with incremental ids', () => {
const id1 = navmesh.addPolygon([
createPoint(0, 0),
createPoint(10, 0),
createPoint(5, 10)
]);
const id2 = navmesh.addPolygon([
createPoint(10, 0),
createPoint(20, 0),
createPoint(15, 10)
]);
expect(id1).toBe(0);
expect(id2).toBe(1);
expect(navmesh.polygonCount).toBe(2);
});
it('should get all polygons', () => {
navmesh.addPolygon([
createPoint(0, 0),
createPoint(10, 0),
createPoint(5, 10)
]);
navmesh.addPolygon([
createPoint(10, 0),
createPoint(20, 0),
createPoint(15, 10)
]);
const polygons = navmesh.getPolygons();
expect(polygons.length).toBe(2);
});
it('should clear all polygons', () => {
navmesh.addPolygon([
createPoint(0, 0),
createPoint(10, 0),
createPoint(5, 10)
]);
navmesh.clear();
expect(navmesh.polygonCount).toBe(0);
});
});
// =========================================================================
// Point in Polygon
// =========================================================================
describe('findPolygonAt', () => {
beforeEach(() => {
// Square from (0,0) to (10,10)
navmesh.addPolygon([
createPoint(0, 0),
createPoint(10, 0),
createPoint(10, 10),
createPoint(0, 10)
]);
});
it('should find polygon containing point', () => {
const polygon = navmesh.findPolygonAt(5, 5);
expect(polygon).not.toBeNull();
expect(polygon?.id).toBe(0);
});
it('should return null for point outside', () => {
expect(navmesh.findPolygonAt(-1, 5)).toBeNull();
expect(navmesh.findPolygonAt(15, 5)).toBeNull();
});
it('should handle point on edge', () => {
const polygon = navmesh.findPolygonAt(0, 5);
// Edge behavior may vary, but should not crash
expect(polygon === null || polygon.id === 0).toBe(true);
});
});
// =========================================================================
// Walkability
// =========================================================================
describe('isWalkable', () => {
beforeEach(() => {
navmesh.addPolygon([
createPoint(0, 0),
createPoint(10, 0),
createPoint(10, 10),
createPoint(0, 10)
]);
});
it('should return true for point in polygon', () => {
expect(navmesh.isWalkable(5, 5)).toBe(true);
});
it('should return false for point outside', () => {
expect(navmesh.isWalkable(15, 5)).toBe(false);
});
});
// =========================================================================
// Connections
// =========================================================================
describe('connections', () => {
it('should manually set connection between polygons', () => {
// Two adjacent squares
const id1 = navmesh.addPolygon([
createPoint(0, 0),
createPoint(10, 0),
createPoint(10, 10),
createPoint(0, 10)
]);
const id2 = navmesh.addPolygon([
createPoint(10, 0),
createPoint(20, 0),
createPoint(20, 10),
createPoint(10, 10)
]);
navmesh.setConnection(id1, id2, {
left: createPoint(10, 0),
right: createPoint(10, 10)
});
const polygons = navmesh.getPolygons();
const poly1 = polygons.find(p => p.id === id1);
expect(poly1?.neighbors).toContain(id2);
});
it('should auto-detect shared edges with build()', () => {
// Two adjacent squares sharing edge at x=10
navmesh.addPolygon([
createPoint(0, 0),
createPoint(10, 0),
createPoint(10, 10),
createPoint(0, 10)
]);
navmesh.addPolygon([
createPoint(10, 0),
createPoint(20, 0),
createPoint(20, 10),
createPoint(10, 10)
]);
navmesh.build();
const polygons = navmesh.getPolygons();
expect(polygons[0].neighbors).toContain(1);
expect(polygons[1].neighbors).toContain(0);
});
});
// =========================================================================
// Pathfinding
// =========================================================================
describe('findPath', () => {
beforeEach(() => {
// Create 3 connected squares
navmesh.addPolygon([
createPoint(0, 0),
createPoint(10, 0),
createPoint(10, 10),
createPoint(0, 10)
]);
navmesh.addPolygon([
createPoint(10, 0),
createPoint(20, 0),
createPoint(20, 10),
createPoint(10, 10)
]);
navmesh.addPolygon([
createPoint(20, 0),
createPoint(30, 0),
createPoint(30, 10),
createPoint(20, 10)
]);
navmesh.build();
});
it('should find path within same polygon', () => {
const result = navmesh.findPath(1, 1, 8, 8);
expect(result.found).toBe(true);
expect(result.path.length).toBe(2);
expect(result.path[0]).toEqual(createPoint(1, 1));
expect(result.path[1]).toEqual(createPoint(8, 8));
});
it('should find path across polygons', () => {
const result = navmesh.findPath(5, 5, 25, 5);
expect(result.found).toBe(true);
expect(result.path.length).toBeGreaterThanOrEqual(2);
expect(result.path[0]).toEqual(createPoint(5, 5));
expect(result.path[result.path.length - 1]).toEqual(createPoint(25, 5));
});
it('should return empty path when start is outside', () => {
const result = navmesh.findPath(-5, 5, 15, 5);
expect(result.found).toBe(false);
});
it('should return empty path when end is outside', () => {
const result = navmesh.findPath(5, 5, 50, 5);
expect(result.found).toBe(false);
});
it('should calculate path cost', () => {
const result = navmesh.findPath(5, 5, 25, 5);
expect(result.found).toBe(true);
expect(result.cost).toBeGreaterThan(0);
});
it('should track nodes searched', () => {
const result = navmesh.findPath(5, 5, 25, 5);
expect(result.nodesSearched).toBeGreaterThan(0);
});
});
// =========================================================================
// IPathfindingMap Interface
// =========================================================================
describe('IPathfindingMap interface', () => {
beforeEach(() => {
// Two adjacent squares with shared edge at x=10
const id1 = navmesh.addPolygon([
createPoint(0, 0),
createPoint(10, 0),
createPoint(10, 10),
createPoint(0, 10)
]);
const id2 = navmesh.addPolygon([
createPoint(10, 0),
createPoint(20, 0),
createPoint(20, 10),
createPoint(10, 10)
]);
// Manual connection to ensure proper setup
navmesh.setConnection(id1, id2, {
left: createPoint(10, 0),
right: createPoint(10, 10)
});
});
it('should return node at position', () => {
const node = navmesh.getNodeAt(5, 5);
expect(node).not.toBeNull();
expect(node?.id).toBe(0);
});
it('should return null for position outside', () => {
const node = navmesh.getNodeAt(50, 50);
expect(node).toBeNull();
});
it('should get neighbors from polygon directly', () => {
// NavMeshNode holds a reference to the original polygon,
// so we check via the polygons map which is updated by setConnection
const polygons = navmesh.getPolygons();
const poly0 = polygons.find(p => p.id === 0);
expect(poly0).toBeDefined();
expect(poly0!.neighbors).toContain(1);
});
it('should calculate heuristic', () => {
const a = createPoint(0, 0);
const b = createPoint(3, 4);
expect(navmesh.heuristic(a, b)).toBe(5); // Euclidean
});
it('should calculate movement cost', () => {
const node1 = navmesh.getNodeAt(5, 5)!;
const node2 = navmesh.getNodeAt(15, 5)!;
const cost = navmesh.getMovementCost(node1, node2);
expect(cost).toBeGreaterThan(0);
});
});
// =========================================================================
// Complex Scenarios
// =========================================================================
describe('complex scenarios', () => {
it('should handle L-shaped navmesh with manual connections', () => {
// Horizontal part
const id1 = navmesh.addPolygon([
createPoint(0, 0),
createPoint(30, 0),
createPoint(30, 10),
createPoint(0, 10)
]);
// Vertical part (shares partial edge, needs manual connection)
const id2 = navmesh.addPolygon([
createPoint(0, 10),
createPoint(10, 10),
createPoint(10, 30),
createPoint(0, 30)
]);
// Manual connection since edges don't match exactly
navmesh.setConnection(id1, id2, {
left: createPoint(0, 10),
right: createPoint(10, 10)
});
const result = navmesh.findPath(25, 5, 5, 25);
expect(result.found).toBe(true);
});
it('should handle disconnected areas', () => {
// Area 1
navmesh.addPolygon([
createPoint(0, 0),
createPoint(10, 0),
createPoint(10, 10),
createPoint(0, 10)
]);
// Area 2 (disconnected)
navmesh.addPolygon([
createPoint(50, 50),
createPoint(60, 50),
createPoint(60, 60),
createPoint(50, 60)
]);
navmesh.build();
const result = navmesh.findPath(5, 5, 55, 55);
expect(result.found).toBe(false);
});
});
// =========================================================================
// Factory Function
// =========================================================================
describe('createNavMesh', () => {
it('should create empty navmesh', () => {
const nm = createNavMesh();
expect(nm).toBeInstanceOf(NavMesh);
expect(nm.polygonCount).toBe(0);
});
});
});

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import { describe, it, expect, beforeEach } from 'vitest';
import {
bresenhamLineOfSight,
raycastLineOfSight,
LineOfSightSmoother,
CatmullRomSmoother,
CombinedSmoother
} from '../../src/smoothing/PathSmoother';
import { GridMap } from '../../src/grid/GridMap';
import { createPoint, type IPoint } from '../../src/core/IPathfinding';
describe('Line of Sight Functions', () => {
let grid: GridMap;
beforeEach(() => {
grid = new GridMap(10, 10);
});
// =========================================================================
// bresenhamLineOfSight
// =========================================================================
describe('bresenhamLineOfSight', () => {
it('should return true for clear line', () => {
expect(bresenhamLineOfSight(0, 0, 5, 5, grid)).toBe(true);
});
it('should return true for same point', () => {
expect(bresenhamLineOfSight(5, 5, 5, 5, grid)).toBe(true);
});
it('should return true for horizontal line', () => {
expect(bresenhamLineOfSight(0, 5, 9, 5, grid)).toBe(true);
});
it('should return true for vertical line', () => {
expect(bresenhamLineOfSight(5, 0, 5, 9, grid)).toBe(true);
});
it('should return false when blocked', () => {
grid.setWalkable(5, 5, false);
expect(bresenhamLineOfSight(0, 0, 9, 9, grid)).toBe(false);
});
it('should return false when start is blocked', () => {
grid.setWalkable(0, 0, false);
expect(bresenhamLineOfSight(0, 0, 5, 5, grid)).toBe(false);
});
it('should return false when end is blocked', () => {
grid.setWalkable(5, 5, false);
expect(bresenhamLineOfSight(0, 0, 5, 5, grid)).toBe(false);
});
it('should detect obstacle in middle', () => {
grid.setWalkable(3, 3, false);
expect(bresenhamLineOfSight(0, 0, 6, 6, grid)).toBe(false);
});
});
// =========================================================================
// raycastLineOfSight
// =========================================================================
describe('raycastLineOfSight', () => {
it('should return true for clear line', () => {
expect(raycastLineOfSight(0, 0, 5, 5, grid)).toBe(true);
});
it('should return true for same point', () => {
expect(raycastLineOfSight(5, 5, 5, 5, grid)).toBe(true);
});
it('should return false when blocked', () => {
grid.setWalkable(5, 5, false);
expect(raycastLineOfSight(0, 0, 9, 9, grid)).toBe(false);
});
it('should work with custom step size', () => {
expect(raycastLineOfSight(0, 0, 5, 5, grid, 0.1)).toBe(true);
grid.setWalkable(2, 2, false);
expect(raycastLineOfSight(0, 0, 5, 5, grid, 0.1)).toBe(false);
});
});
});
describe('LineOfSightSmoother', () => {
let grid: GridMap;
let smoother: LineOfSightSmoother;
beforeEach(() => {
grid = new GridMap(20, 20);
smoother = new LineOfSightSmoother();
});
it('should return same path for 2 or fewer points', () => {
const path1: IPoint[] = [createPoint(0, 0)];
expect(smoother.smooth(path1, grid)).toEqual(path1);
const path2: IPoint[] = [createPoint(0, 0), createPoint(5, 5)];
expect(smoother.smooth(path2, grid)).toEqual(path2);
});
it('should remove unnecessary waypoints on straight line', () => {
const path: IPoint[] = [
createPoint(0, 0),
createPoint(1, 0),
createPoint(2, 0),
createPoint(3, 0),
createPoint(4, 0),
createPoint(5, 0)
];
const result = smoother.smooth(path, grid);
expect(result.length).toBe(2);
expect(result[0]).toEqual(createPoint(0, 0));
expect(result[1]).toEqual(createPoint(5, 0));
});
it('should remove unnecessary waypoints on diagonal', () => {
const path: IPoint[] = [
createPoint(0, 0),
createPoint(1, 1),
createPoint(2, 2),
createPoint(3, 3),
createPoint(4, 4),
createPoint(5, 5)
];
const result = smoother.smooth(path, grid);
expect(result.length).toBe(2);
expect(result[0]).toEqual(createPoint(0, 0));
expect(result[1]).toEqual(createPoint(5, 5));
});
it('should keep waypoints around obstacles', () => {
// Create obstacle
grid.setWalkable(5, 5, false);
const path: IPoint[] = [
createPoint(0, 0),
createPoint(4, 5),
createPoint(6, 5),
createPoint(10, 10)
];
const result = smoother.smooth(path, grid);
// Should keep at least start, one waypoint near obstacle, and end
expect(result.length).toBeGreaterThanOrEqual(3);
});
it('should use custom line of sight function', () => {
const customLOS = (x1: number, y1: number, x2: number, y2: number) => {
// Always blocked
return false;
};
const customSmoother = new LineOfSightSmoother(customLOS);
const path: IPoint[] = [
createPoint(0, 0),
createPoint(1, 1),
createPoint(2, 2)
];
const result = customSmoother.smooth(path, grid);
// Should not simplify because LOS always fails
expect(result).toEqual(path);
});
});
describe('CatmullRomSmoother', () => {
let grid: GridMap;
let smoother: CatmullRomSmoother;
beforeEach(() => {
grid = new GridMap(20, 20);
smoother = new CatmullRomSmoother(5, 0.5);
});
it('should return same path for 2 or fewer points', () => {
const path1: IPoint[] = [createPoint(0, 0)];
expect(smoother.smooth(path1, grid)).toEqual(path1);
const path2: IPoint[] = [createPoint(0, 0), createPoint(5, 5)];
expect(smoother.smooth(path2, grid)).toEqual(path2);
});
it('should add interpolation points', () => {
const path: IPoint[] = [
createPoint(0, 0),
createPoint(5, 0),
createPoint(10, 0)
];
const result = smoother.smooth(path, grid);
// Should have more points due to interpolation
expect(result.length).toBeGreaterThan(path.length);
});
it('should preserve start and end points', () => {
const path: IPoint[] = [
createPoint(0, 0),
createPoint(5, 5),
createPoint(10, 0)
];
const result = smoother.smooth(path, grid);
expect(result[0].x).toBeCloseTo(0, 1);
expect(result[0].y).toBeCloseTo(0, 1);
expect(result[result.length - 1]).toEqual(createPoint(10, 0));
});
it('should create smooth curve', () => {
const path: IPoint[] = [
createPoint(0, 0),
createPoint(5, 5),
createPoint(10, 0)
];
const result = smoother.smooth(path, grid);
// Check that middle points are near the original waypoint
const middlePoints = result.filter(p =>
Math.abs(p.x - 5) < 2 && Math.abs(p.y - 5) < 2
);
expect(middlePoints.length).toBeGreaterThan(0);
});
it('should work with different segment counts', () => {
const smootherLow = new CatmullRomSmoother(2);
const smootherHigh = new CatmullRomSmoother(10);
const path: IPoint[] = [
createPoint(0, 0),
createPoint(5, 5),
createPoint(10, 0)
];
const resultLow = smootherLow.smooth(path, grid);
const resultHigh = smootherHigh.smooth(path, grid);
expect(resultHigh.length).toBeGreaterThan(resultLow.length);
});
});
describe('CombinedSmoother', () => {
let grid: GridMap;
let smoother: CombinedSmoother;
beforeEach(() => {
grid = new GridMap(20, 20);
smoother = new CombinedSmoother(5, 0.5);
});
it('should first simplify then curve smooth', () => {
// Path with redundant points
const path: IPoint[] = [
createPoint(0, 0),
createPoint(1, 0),
createPoint(2, 0),
createPoint(3, 0),
createPoint(4, 0),
createPoint(5, 0),
createPoint(6, 3),
createPoint(7, 6),
createPoint(8, 6),
createPoint(9, 6),
createPoint(10, 6)
];
const result = smoother.smooth(path, grid);
// Should have smoothed the path
expect(result.length).toBeGreaterThan(0);
expect(result[0].x).toBeCloseTo(0, 1);
expect(result[result.length - 1]).toEqual(createPoint(10, 6));
});
it('should handle simple path', () => {
const path: IPoint[] = [
createPoint(0, 0),
createPoint(10, 10)
];
const result = smoother.smooth(path, grid);
expect(result.length).toBe(2);
});
});

View File

@@ -20,6 +20,8 @@
"build": "tsup",
"build:watch": "tsup --watch",
"type-check": "tsc --noEmit",
"test": "vitest run",
"test:watch": "vitest",
"clean": "rimraf dist"
},
"devDependencies": {
@@ -27,7 +29,8 @@
"@esengine/ecs-framework-math": "workspace:*",
"@esengine/blueprint": "workspace:*",
"tsup": "^8.0.0",
"typescript": "^5.8.0"
"typescript": "^5.8.0",
"vitest": "^2.1.9"
},
"peerDependencies": {
"@esengine/ecs-framework": "workspace:*",

View File

@@ -0,0 +1,7 @@
import { defineConfig } from 'vitest/config';
export default defineConfig({
test: {
include: ['__tests__/**/*.test.ts'],
},
});

View File

@@ -1,5 +1,32 @@
# @esengine/server
## 1.3.0
### Minor Changes
- [#388](https://github.com/esengine/esengine/pull/388) [`afdeb00`](https://github.com/esengine/esengine/commit/afdeb00b4df9427e7f03b91558bf95804a837b70) Thanks [@esengine](https://github.com/esengine)! - feat(server): 添加可插拔速率限制系统 | add pluggable rate limiting system
- 新增令牌桶策略 (`TokenBucketStrategy`) - 推荐用于一般场景
- 新增滑动窗口策略 (`SlidingWindowStrategy`) - 精确跟踪
- 新增固定窗口策略 (`FixedWindowStrategy`) - 简单高效
- 新增房间速率限制 mixin (`withRateLimit`)
- 新增速率限制装饰器 (`@rateLimit`, `@noRateLimit`)
- 新增按消息类型限流装饰器 (`@rateLimitMessage`, `@noRateLimitMessage`)
- 支持与认证系统组合使用
- 导出路径: `@esengine/server/ratelimit`
## 1.2.0
### Minor Changes
- [#386](https://github.com/esengine/esengine/pull/386) [`61a13ba`](https://github.com/esengine/esengine/commit/61a13baca2e1e8fba14e23d439521ec0e6b7ca6e) Thanks [@esengine](https://github.com/esengine)! - feat(server): 添加可插拔认证系统 | add pluggable authentication system
- 新增 JWT 认证提供者 (`createJwtAuthProvider`)
- 新增 Session 认证提供者 (`createSessionAuthProvider`)
- 新增服务器认证 mixin (`withAuth`)
- 新增房间认证 mixin (`withRoomAuth`)
- 新增认证装饰器 (`@requireAuth`, `@requireRole`)
- 新增测试工具 (`MockAuthProvider`)
- 导出路径: `@esengine/server/auth`, `@esengine/server/auth/testing`
## 1.1.4
### Patch Changes

View File

@@ -1,6 +1,6 @@
{
"name": "@esengine/server",
"version": "1.1.4",
"version": "1.3.0",
"description": "Game server framework for ESEngine with file-based routing",
"type": "module",
"main": "./dist/index.js",
@@ -10,6 +10,22 @@
".": {
"import": "./dist/index.js",
"types": "./dist/index.d.ts"
},
"./auth": {
"import": "./dist/auth/index.js",
"types": "./dist/auth/index.d.ts"
},
"./auth/testing": {
"import": "./dist/auth/testing/index.js",
"types": "./dist/auth/testing/index.d.ts"
},
"./ratelimit": {
"import": "./dist/ratelimit/index.js",
"types": "./dist/ratelimit/index.d.ts"
},
"./testing": {
"import": "./dist/testing/index.js",
"types": "./dist/testing/index.d.ts"
}
},
"files": [
@@ -21,20 +37,31 @@
"build:watch": "tsup --watch",
"dev": "tsup --watch",
"type-check": "tsc --noEmit",
"clean": "rimraf dist"
"clean": "rimraf dist",
"test": "vitest run",
"test:watch": "vitest"
},
"dependencies": {
"@esengine/rpc": "workspace:*"
},
"peerDependencies": {
"ws": ">=8.0.0"
"ws": ">=8.0.0",
"jsonwebtoken": ">=9.0.0"
},
"peerDependenciesMeta": {
"jsonwebtoken": {
"optional": true
}
},
"devDependencies": {
"@types/jsonwebtoken": "^9.0.0",
"@types/node": "^20.0.0",
"@types/ws": "^8.5.13",
"jsonwebtoken": "^9.0.0",
"rimraf": "^5.0.0",
"tsup": "^8.0.0",
"typescript": "^5.7.0",
"vitest": "^2.0.0",
"ws": "^8.18.0"
},
"publishConfig": {

View File

@@ -0,0 +1,214 @@
import { describe, it, expect, beforeEach } from 'vitest';
import { MockAuthProvider, createMockAuthProvider, type MockUser } from '../testing/MockAuthProvider';
describe('MockAuthProvider', () => {
const testUsers: MockUser[] = [
{ id: '1', name: 'Alice', roles: ['player'] },
{ id: '2', name: 'Bob', roles: ['admin', 'player'] },
{ id: '3', name: 'Charlie', roles: ['guest'] }
];
let provider: MockAuthProvider;
beforeEach(() => {
provider = createMockAuthProvider({
users: testUsers
});
});
describe('basic properties', () => {
it('should have name "mock"', () => {
expect(provider.name).toBe('mock');
});
});
describe('verify', () => {
it('should verify existing user by id (token)', async () => {
const result = await provider.verify('1');
expect(result.success).toBe(true);
expect(result.user?.id).toBe('1');
expect(result.user?.name).toBe('Alice');
});
it('should return user roles', async () => {
const result = await provider.verify('2');
expect(result.success).toBe(true);
expect(result.user?.roles).toEqual(['admin', 'player']);
});
it('should fail for unknown user', async () => {
const result = await provider.verify('unknown');
expect(result.success).toBe(false);
expect(result.errorCode).toBe('USER_NOT_FOUND');
});
it('should fail for empty token', async () => {
const result = await provider.verify('');
expect(result.success).toBe(false);
expect(result.errorCode).toBe('INVALID_TOKEN');
});
it('should return expiresAt', async () => {
const result = await provider.verify('1');
expect(result.expiresAt).toBeTypeOf('number');
expect(result.expiresAt).toBeGreaterThan(Date.now());
});
});
describe('with defaultUser', () => {
it('should return default user for empty token', async () => {
const providerWithDefault = createMockAuthProvider({
defaultUser: { id: 'default', name: 'Guest' }
});
const result = await providerWithDefault.verify('');
expect(result.success).toBe(true);
expect(result.user?.id).toBe('default');
});
});
describe('with autoCreate', () => {
it('should auto create user for unknown token', async () => {
const autoProvider = createMockAuthProvider({
autoCreate: true
});
const result = await autoProvider.verify('new-user-123');
expect(result.success).toBe(true);
expect(result.user?.id).toBe('new-user-123');
expect(result.user?.name).toBe('User_new-user-123');
expect(result.user?.roles).toEqual(['guest']);
});
it('should persist auto-created users', async () => {
const autoProvider = createMockAuthProvider({
autoCreate: true
});
await autoProvider.verify('auto-1');
const user = autoProvider.getUser('auto-1');
expect(user).toBeDefined();
expect(user?.id).toBe('auto-1');
});
});
describe('with validateToken', () => {
it('should validate token format', async () => {
const validatingProvider = createMockAuthProvider({
users: testUsers,
validateToken: (token) => token.length >= 1 && !token.includes('invalid')
});
const validResult = await validatingProvider.verify('1');
expect(validResult.success).toBe(true);
const invalidResult = await validatingProvider.verify('invalid-token');
expect(invalidResult.success).toBe(false);
expect(invalidResult.errorCode).toBe('INVALID_TOKEN');
});
});
describe('with delay', () => {
it('should add artificial delay', async () => {
const delayProvider = createMockAuthProvider({
users: testUsers,
delay: 50
});
const start = Date.now();
await delayProvider.verify('1');
const elapsed = Date.now() - start;
expect(elapsed).toBeGreaterThanOrEqual(45);
});
});
describe('refresh', () => {
it('should refresh token (returns same result as verify)', async () => {
const result = await provider.refresh('1');
expect(result.success).toBe(true);
expect(result.user?.id).toBe('1');
});
});
describe('revoke', () => {
it('should revoke token', async () => {
const result1 = await provider.verify('1');
expect(result1.success).toBe(true);
const revoked = await provider.revoke('1');
expect(revoked).toBe(true);
const result2 = await provider.verify('1');
expect(result2.success).toBe(false);
expect(result2.errorCode).toBe('INVALID_TOKEN');
});
});
describe('user management', () => {
it('should add user', () => {
provider.addUser({ id: '4', name: 'Dave', roles: ['tester'] });
const user = provider.getUser('4');
expect(user?.name).toBe('Dave');
});
it('should remove user', () => {
const removed = provider.removeUser('1');
expect(removed).toBe(true);
const user = provider.getUser('1');
expect(user).toBeUndefined();
});
it('should return false when removing non-existent user', () => {
const removed = provider.removeUser('non-existent');
expect(removed).toBe(false);
});
it('should get all users', () => {
const users = provider.getUsers();
expect(users).toHaveLength(3);
expect(users.map(u => u.id)).toContain('1');
expect(users.map(u => u.id)).toContain('2');
expect(users.map(u => u.id)).toContain('3');
});
});
describe('clear', () => {
it('should reset to initial state', async () => {
provider.addUser({ id: '4', name: 'Dave' });
await provider.revoke('1');
provider.clear();
const users = provider.getUsers();
expect(users).toHaveLength(3);
const result = await provider.verify('1');
expect(result.success).toBe(true);
});
});
describe('generateToken', () => {
it('should return user id as token', () => {
const token = provider.generateToken('user-123');
expect(token).toBe('user-123');
});
});
});
describe('createMockAuthProvider', () => {
it('should create provider with empty config', () => {
const provider = createMockAuthProvider();
expect(provider.name).toBe('mock');
});
it('should create provider with custom users', () => {
const provider = createMockAuthProvider({
users: [{ id: 'test', name: 'Test User' }]
});
const user = provider.getUser('test');
expect(user?.name).toBe('Test User');
});
});

View File

@@ -0,0 +1,242 @@
import { describe, it, expect, beforeEach } from 'vitest';
import { AuthContext, createGuestContext, createAuthContext, defaultUserExtractor } from '../context';
import type { AuthResult } from '../types';
describe('AuthContext', () => {
let context: AuthContext<{ id: string; name: string; roles: string[] }>;
beforeEach(() => {
context = new AuthContext();
});
describe('initial state', () => {
it('should not be authenticated initially', () => {
expect(context.isAuthenticated).toBe(false);
});
it('should have null user initially', () => {
expect(context.user).toBeNull();
});
it('should have null userId initially', () => {
expect(context.userId).toBeNull();
});
it('should have empty roles initially', () => {
expect(context.roles).toEqual([]);
});
it('should have null authenticatedAt initially', () => {
expect(context.authenticatedAt).toBeNull();
});
it('should have null expiresAt initially', () => {
expect(context.expiresAt).toBeNull();
});
});
describe('setAuthenticated', () => {
it('should set authenticated state on success', () => {
const result: AuthResult<{ id: string; name: string; roles: string[] }> = {
success: true,
user: { id: '123', name: 'Alice', roles: ['player'] }
};
context.setAuthenticated(result);
expect(context.isAuthenticated).toBe(true);
expect(context.user).toEqual({ id: '123', name: 'Alice', roles: ['player'] });
expect(context.userId).toBe('123');
expect(context.roles).toEqual(['player']);
expect(context.authenticatedAt).toBeTypeOf('number');
});
it('should set expiresAt when provided', () => {
const expiresAt = Date.now() + 3600000;
const result: AuthResult<{ id: string; name: string; roles: string[] }> = {
success: true,
user: { id: '123', name: 'Alice', roles: [] },
expiresAt
};
context.setAuthenticated(result);
expect(context.expiresAt).toBe(expiresAt);
});
it('should clear state on failed result', () => {
context.setAuthenticated({
success: true,
user: { id: '123', name: 'Alice', roles: ['player'] }
});
context.setAuthenticated({
success: false,
error: 'Token expired'
});
expect(context.isAuthenticated).toBe(false);
expect(context.user).toBeNull();
});
it('should clear state when success but no user', () => {
context.setAuthenticated({
success: true
});
expect(context.isAuthenticated).toBe(false);
});
});
describe('isAuthenticated with expiry', () => {
it('should return false when token is expired', () => {
context.setAuthenticated({
success: true,
user: { id: '123', name: 'Alice', roles: [] },
expiresAt: Date.now() - 1000
});
expect(context.isAuthenticated).toBe(false);
});
it('should return true when token is not expired', () => {
context.setAuthenticated({
success: true,
user: { id: '123', name: 'Alice', roles: [] },
expiresAt: Date.now() + 3600000
});
expect(context.isAuthenticated).toBe(true);
});
});
describe('role checking', () => {
beforeEach(() => {
context.setAuthenticated({
success: true,
user: { id: '123', name: 'Alice', roles: ['player', 'premium'] }
});
});
it('hasRole should return true for existing role', () => {
expect(context.hasRole('player')).toBe(true);
expect(context.hasRole('premium')).toBe(true);
});
it('hasRole should return false for non-existing role', () => {
expect(context.hasRole('admin')).toBe(false);
});
it('hasAnyRole should return true if any role matches', () => {
expect(context.hasAnyRole(['admin', 'player'])).toBe(true);
expect(context.hasAnyRole(['guest', 'premium'])).toBe(true);
});
it('hasAnyRole should return false if no role matches', () => {
expect(context.hasAnyRole(['admin', 'moderator'])).toBe(false);
});
it('hasAllRoles should return true if all roles match', () => {
expect(context.hasAllRoles(['player', 'premium'])).toBe(true);
});
it('hasAllRoles should return false if any role is missing', () => {
expect(context.hasAllRoles(['player', 'admin'])).toBe(false);
});
});
describe('clear', () => {
it('should reset all state', () => {
context.setAuthenticated({
success: true,
user: { id: '123', name: 'Alice', roles: ['player'] },
expiresAt: Date.now() + 3600000
});
context.clear();
expect(context.isAuthenticated).toBe(false);
expect(context.user).toBeNull();
expect(context.userId).toBeNull();
expect(context.roles).toEqual([]);
expect(context.authenticatedAt).toBeNull();
expect(context.expiresAt).toBeNull();
});
});
});
describe('defaultUserExtractor', () => {
describe('getId', () => {
it('should extract id from user object', () => {
expect(defaultUserExtractor.getId({ id: '123' })).toBe('123');
});
it('should extract numeric id as string', () => {
expect(defaultUserExtractor.getId({ id: 456 })).toBe('456');
});
it('should extract userId', () => {
expect(defaultUserExtractor.getId({ userId: 'abc' })).toBe('abc');
});
it('should extract sub (JWT standard)', () => {
expect(defaultUserExtractor.getId({ sub: 'jwt-sub' })).toBe('jwt-sub');
});
it('should return empty string for invalid user', () => {
expect(defaultUserExtractor.getId(null)).toBe('');
expect(defaultUserExtractor.getId(undefined)).toBe('');
expect(defaultUserExtractor.getId({})).toBe('');
});
});
describe('getRoles', () => {
it('should extract roles array', () => {
expect(defaultUserExtractor.getRoles({ roles: ['a', 'b'] })).toEqual(['a', 'b']);
});
it('should extract single role', () => {
expect(defaultUserExtractor.getRoles({ role: 'admin' })).toEqual(['admin']);
});
it('should filter non-string roles', () => {
expect(defaultUserExtractor.getRoles({ roles: ['a', 123, 'b'] })).toEqual(['a', 'b']);
});
it('should return empty array for invalid user', () => {
expect(defaultUserExtractor.getRoles(null)).toEqual([]);
expect(defaultUserExtractor.getRoles({})).toEqual([]);
});
});
});
describe('createGuestContext', () => {
it('should create unauthenticated context', () => {
const guest = createGuestContext();
expect(guest.isAuthenticated).toBe(false);
expect(guest.user).toBeNull();
});
});
describe('createAuthContext', () => {
it('should create authenticated context from result', () => {
const result: AuthResult<{ id: string }> = {
success: true,
user: { id: '123' }
};
const ctx = createAuthContext(result);
expect(ctx.isAuthenticated).toBe(true);
expect(ctx.userId).toBe('123');
});
it('should create unauthenticated context from failed result', () => {
const result: AuthResult<{ id: string }> = {
success: false,
error: 'Failed'
};
const ctx = createAuthContext(result);
expect(ctx.isAuthenticated).toBe(false);
});
});

View File

@@ -0,0 +1,165 @@
import { describe, it, expect, beforeEach } from 'vitest';
import { requireAuth, AUTH_METADATA_KEY, getAuthMetadata, type AuthMetadata } from '../decorators/requireAuth';
import { requireRole } from '../decorators/requireRole';
describe('requireAuth decorator', () => {
class TestClass {
@requireAuth()
basicMethod() {
return 'basic';
}
@requireAuth({ allowGuest: true })
guestAllowedMethod() {
return 'guest';
}
@requireAuth({ errorMessage: 'Custom error' })
customErrorMethod() {
return 'custom';
}
undecorated() {
return 'undecorated';
}
}
let instance: TestClass;
beforeEach(() => {
instance = new TestClass();
});
describe('metadata storage', () => {
it('should store auth metadata on target', () => {
const metadata = getAuthMetadata(TestClass.prototype, 'basicMethod');
expect(metadata).toBeDefined();
expect(metadata?.requireAuth).toBe(true);
});
it('should store options in metadata', () => {
const metadata = getAuthMetadata(TestClass.prototype, 'guestAllowedMethod');
expect(metadata?.options?.allowGuest).toBe(true);
});
it('should store custom error message', () => {
const metadata = getAuthMetadata(TestClass.prototype, 'customErrorMethod');
expect(metadata?.options?.errorMessage).toBe('Custom error');
});
it('should return undefined for undecorated methods', () => {
const metadata = getAuthMetadata(TestClass.prototype, 'undecorated');
expect(metadata).toBeUndefined();
});
it('should return undefined for non-existent methods', () => {
const metadata = getAuthMetadata(TestClass.prototype, 'nonExistent');
expect(metadata).toBeUndefined();
});
});
describe('method behavior', () => {
it('should not alter method behavior', () => {
expect(instance.basicMethod()).toBe('basic');
expect(instance.guestAllowedMethod()).toBe('guest');
expect(instance.customErrorMethod()).toBe('custom');
});
});
describe('metadata key', () => {
it('should use symbol for metadata storage', () => {
expect(typeof AUTH_METADATA_KEY).toBe('symbol');
});
it('should store metadata in a Map', () => {
const metadataMap = (TestClass.prototype as any)[AUTH_METADATA_KEY];
expect(metadataMap).toBeInstanceOf(Map);
});
});
});
describe('requireRole decorator', () => {
class RoleTestClass {
@requireRole('admin')
adminOnly() {
return 'admin';
}
@requireRole(['moderator', 'admin'])
modOrAdmin() {
return 'mod';
}
@requireRole(['verified', 'premium'], { mode: 'all' })
verifiedPremium() {
return 'vip';
}
@requireRole('player', { mode: 'any' })
playerExplicit() {
return 'player';
}
}
describe('single role', () => {
it('should store single role as array', () => {
const metadata = getAuthMetadata(RoleTestClass.prototype, 'adminOnly');
expect(metadata?.roles).toEqual(['admin']);
});
it('should set requireAuth to true', () => {
const metadata = getAuthMetadata(RoleTestClass.prototype, 'adminOnly');
expect(metadata?.requireAuth).toBe(true);
});
it('should default to any mode', () => {
const metadata = getAuthMetadata(RoleTestClass.prototype, 'adminOnly');
expect(metadata?.roleMode).toBe('any');
});
});
describe('multiple roles', () => {
it('should store multiple roles', () => {
const metadata = getAuthMetadata(RoleTestClass.prototype, 'modOrAdmin');
expect(metadata?.roles).toEqual(['moderator', 'admin']);
});
});
describe('role mode', () => {
it('should support all mode', () => {
const metadata = getAuthMetadata(RoleTestClass.prototype, 'verifiedPremium');
expect(metadata?.roleMode).toBe('all');
expect(metadata?.roles).toEqual(['verified', 'premium']);
});
it('should support explicit any mode', () => {
const metadata = getAuthMetadata(RoleTestClass.prototype, 'playerExplicit');
expect(metadata?.roleMode).toBe('any');
});
});
describe('method behavior', () => {
it('should not alter method behavior', () => {
const instance = new RoleTestClass();
expect(instance.adminOnly()).toBe('admin');
expect(instance.modOrAdmin()).toBe('mod');
expect(instance.verifiedPremium()).toBe('vip');
});
});
});
describe('combined decorators', () => {
class CombinedTestClass {
@requireAuth({ allowGuest: false })
@requireRole('admin')
combinedMethod() {
return 'combined';
}
}
it('should merge metadata from both decorators', () => {
const metadata = getAuthMetadata(CombinedTestClass.prototype, 'combinedMethod');
expect(metadata?.requireAuth).toBe(true);
expect(metadata?.roles).toEqual(['admin']);
});
});

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import { describe, it, expect, beforeEach, vi } from 'vitest';
import { JwtAuthProvider, createJwtAuthProvider } from '../providers/JwtAuthProvider';
import { SessionAuthProvider, createSessionAuthProvider, type ISessionStorage } from '../providers/SessionAuthProvider';
describe('JwtAuthProvider', () => {
const secret = 'test-secret-key-for-testing';
let provider: JwtAuthProvider<{ id: string; name: string; roles: string[] }>;
beforeEach(() => {
provider = createJwtAuthProvider({
secret,
expiresIn: 3600
});
});
describe('sign and verify', () => {
it('should sign and verify a token', async () => {
const payload = { sub: '123', name: 'Alice', roles: ['player'] };
const token = provider.sign(payload);
expect(token).toBeTypeOf('string');
expect(token.split('.')).toHaveLength(3);
const result = await provider.verify(token);
expect(result.success).toBe(true);
expect(result.user).toBeDefined();
});
it('should extract user from payload', async () => {
const payload = { sub: '123', name: 'Alice' };
const token = provider.sign(payload);
const result = await provider.verify(token);
expect(result.success).toBe(true);
expect((result.user as any).sub).toBe('123');
expect((result.user as any).name).toBe('Alice');
});
it('should return expiration time', async () => {
const token = provider.sign({ sub: '123' });
const result = await provider.verify(token);
expect(result.expiresAt).toBeTypeOf('number');
expect(result.expiresAt).toBeGreaterThan(Date.now());
});
});
describe('verify errors', () => {
it('should fail for empty token', async () => {
const result = await provider.verify('');
expect(result.success).toBe(false);
expect(result.errorCode).toBe('INVALID_TOKEN');
});
it('should fail for invalid token', async () => {
const result = await provider.verify('invalid.token.here');
expect(result.success).toBe(false);
expect(result.errorCode).toBe('INVALID_TOKEN');
});
it('should fail for expired token', async () => {
const shortLivedProvider = createJwtAuthProvider({
secret,
expiresIn: -1
});
const token = shortLivedProvider.sign({ sub: '123' });
const result = await shortLivedProvider.verify(token);
expect(result.success).toBe(false);
expect(result.errorCode).toBe('EXPIRED_TOKEN');
});
it('should fail for wrong secret', async () => {
const token = provider.sign({ sub: '123' });
const wrongSecretProvider = createJwtAuthProvider({
secret: 'wrong-secret'
});
const result = await wrongSecretProvider.verify(token);
expect(result.success).toBe(false);
expect(result.errorCode).toBe('INVALID_TOKEN');
});
});
describe('with getUser callback', () => {
it('should use getUser to transform payload', async () => {
const customProvider = createJwtAuthProvider({
secret,
getUser: async (payload) => ({
id: payload.sub as string,
name: payload.name as string,
roles: (payload.roles as string[]) || []
})
});
const token = customProvider.sign({ sub: '123', name: 'Bob', roles: ['admin'] });
const result = await customProvider.verify(token);
expect(result.success).toBe(true);
expect(result.user).toEqual({
id: '123',
name: 'Bob',
roles: ['admin']
});
});
it('should fail when getUser returns null', async () => {
const customProvider = createJwtAuthProvider({
secret,
getUser: async () => null
});
const token = customProvider.sign({ sub: '123' });
const result = await customProvider.verify(token);
expect(result.success).toBe(false);
expect(result.errorCode).toBe('USER_NOT_FOUND');
});
});
describe('refresh', () => {
it('should refresh a valid token', async () => {
const token = provider.sign({ sub: '123', name: 'Alice' });
// Wait a bit so iat changes
await new Promise(resolve => setTimeout(resolve, 1100));
const result = await provider.refresh(token);
expect(result.success).toBe(true);
expect(result.token).toBeDefined();
expect(result.token).not.toBe(token);
});
it('should return new expiration time', async () => {
const token = provider.sign({ sub: '123' });
const result = await provider.refresh(token);
expect(result.success).toBe(true);
expect(result.expiresAt).toBeTypeOf('number');
expect(result.expiresAt).toBeGreaterThan(Date.now());
});
it('should fail to refresh invalid token', async () => {
const result = await provider.refresh('invalid');
expect(result.success).toBe(false);
});
});
describe('decode', () => {
it('should decode token without verification', () => {
const token = provider.sign({ sub: '123', name: 'Alice' });
const payload = provider.decode(token);
expect(payload).toBeDefined();
expect(payload?.sub).toBe('123');
expect(payload?.name).toBe('Alice');
});
it('should return null for invalid token', () => {
const payload = provider.decode('not-a-token');
expect(payload).toBeNull();
});
});
});
describe('SessionAuthProvider', () => {
let storage: ISessionStorage;
let provider: SessionAuthProvider<{ id: string; name: string }>;
let storageData: Map<string, unknown>;
beforeEach(() => {
storageData = new Map();
storage = {
async get<T>(key: string): Promise<T | null> {
return (storageData.get(key) as T) ?? null;
},
async set<T>(key: string, value: T): Promise<void> {
storageData.set(key, value);
},
async delete(key: string): Promise<boolean> {
return storageData.delete(key);
}
};
provider = createSessionAuthProvider({
storage,
sessionTTL: 3600000
});
});
describe('createSession and verify', () => {
it('should create and verify a session', async () => {
const user = { id: '123', name: 'Alice' };
const sessionId = await provider.createSession(user);
expect(sessionId).toBeTypeOf('string');
expect(sessionId.length).toBeGreaterThan(10);
const result = await provider.verify(sessionId);
expect(result.success).toBe(true);
expect(result.user).toEqual(user);
});
it('should store session data', async () => {
const user = { id: '123', name: 'Alice' };
const sessionId = await provider.createSession(user, { customField: 'value' });
const session = await provider.getSession(sessionId);
expect(session).toBeDefined();
expect(session?.user).toEqual(user);
expect(session?.data?.customField).toBe('value');
expect(session?.createdAt).toBeTypeOf('number');
expect(session?.lastActiveAt).toBeTypeOf('number');
});
});
describe('verify errors', () => {
it('should fail for empty session id', async () => {
const result = await provider.verify('');
expect(result.success).toBe(false);
expect(result.errorCode).toBe('INVALID_TOKEN');
});
it('should fail for non-existent session', async () => {
const result = await provider.verify('non-existent-session');
expect(result.success).toBe(false);
expect(result.errorCode).toBe('EXPIRED_TOKEN');
});
});
describe('with validateUser', () => {
it('should validate user on verify', async () => {
const validatingProvider = createSessionAuthProvider({
storage,
validateUser: (user) => user.id !== 'banned'
});
const sessionId = await validatingProvider.createSession({ id: 'banned', name: 'Bad User' });
const result = await validatingProvider.verify(sessionId);
expect(result.success).toBe(false);
expect(result.errorCode).toBe('ACCOUNT_DISABLED');
});
it('should pass validation for valid user', async () => {
const validatingProvider = createSessionAuthProvider({
storage,
validateUser: (user) => user.id !== 'banned'
});
const sessionId = await validatingProvider.createSession({ id: '123', name: 'Good User' });
const result = await validatingProvider.verify(sessionId);
expect(result.success).toBe(true);
});
});
describe('refresh', () => {
it('should refresh session and update lastActiveAt', async () => {
const sessionId = await provider.createSession({ id: '123', name: 'Alice' });
const session1 = await provider.getSession(sessionId);
const lastActive1 = session1?.lastActiveAt;
await new Promise(resolve => setTimeout(resolve, 10));
const result = await provider.refresh(sessionId);
expect(result.success).toBe(true);
const session2 = await provider.getSession(sessionId);
expect(session2?.lastActiveAt).toBeGreaterThanOrEqual(lastActive1!);
});
});
describe('revoke', () => {
it('should revoke session', async () => {
const sessionId = await provider.createSession({ id: '123', name: 'Alice' });
const revoked = await provider.revoke(sessionId);
expect(revoked).toBe(true);
const result = await provider.verify(sessionId);
expect(result.success).toBe(false);
});
});
describe('updateSession', () => {
it('should update session data', async () => {
const sessionId = await provider.createSession({ id: '123', name: 'Alice' });
const updated = await provider.updateSession(sessionId, { newField: 'newValue' });
expect(updated).toBe(true);
const session = await provider.getSession(sessionId);
expect(session?.data?.newField).toBe('newValue');
});
it('should return false for non-existent session', async () => {
const updated = await provider.updateSession('non-existent', { field: 'value' });
expect(updated).toBe(false);
});
});
});
describe('createJwtAuthProvider', () => {
it('should create provider with default options', () => {
const provider = createJwtAuthProvider({ secret: 'test' });
expect(provider.name).toBe('jwt');
});
});
describe('createSessionAuthProvider', () => {
it('should create provider with default options', () => {
const storage: ISessionStorage = {
get: async () => null,
set: async () => {},
delete: async () => true
};
const provider = createSessionAuthProvider({ storage });
expect(provider.name).toBe('session');
});
});

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/**
* @zh 认证上下文实现
* @en Authentication context implementation
*/
import type { IAuthContext, AuthResult } from './types.js';
/**
* @zh 用户信息提取器
* @en User info extractor
*/
export interface UserInfoExtractor<TUser> {
/**
* @zh 提取用户 ID
* @en Extract user ID
*/
getId(user: TUser): string;
/**
* @zh 提取用户角色
* @en Extract user roles
*/
getRoles(user: TUser): string[];
}
/**
* @zh 默认用户信息提取器
* @en Default user info extractor
*/
export const defaultUserExtractor: UserInfoExtractor<unknown> = {
getId(user: unknown): string {
if (user && typeof user === 'object') {
const u = user as Record<string, unknown>;
if (typeof u.id === 'string') return u.id;
if (typeof u.id === 'number') return String(u.id);
if (typeof u.userId === 'string') return u.userId;
if (typeof u.userId === 'number') return String(u.userId);
if (typeof u.sub === 'string') return u.sub;
}
return '';
},
getRoles(user: unknown): string[] {
if (user && typeof user === 'object') {
const u = user as Record<string, unknown>;
if (Array.isArray(u.roles)) {
return u.roles.filter((r): r is string => typeof r === 'string');
}
if (typeof u.role === 'string') {
return [u.role];
}
}
return [];
}
};
/**
* @zh 认证上下文
* @en Authentication context
*
* @zh 存储连接的认证状态
* @en Stores authentication state for a connection
*/
export class AuthContext<TUser = unknown> implements IAuthContext<TUser> {
private _isAuthenticated: boolean = false;
private _user: TUser | null = null;
private _userId: string | null = null;
private _roles: string[] = [];
private _authenticatedAt: number | null = null;
private _expiresAt: number | null = null;
private _extractor: UserInfoExtractor<TUser>;
constructor(extractor?: UserInfoExtractor<TUser>) {
this._extractor = (extractor ?? defaultUserExtractor) as UserInfoExtractor<TUser>;
}
/**
* @zh 是否已认证
* @en Whether authenticated
*/
get isAuthenticated(): boolean {
if (this._expiresAt && Date.now() > this._expiresAt) {
return false;
}
return this._isAuthenticated;
}
/**
* @zh 用户信息
* @en User information
*/
get user(): TUser | null {
return this._user;
}
/**
* @zh 用户 ID
* @en User ID
*/
get userId(): string | null {
return this._userId;
}
/**
* @zh 用户角色
* @en User roles
*/
get roles(): ReadonlyArray<string> {
return this._roles;
}
/**
* @zh 认证时间
* @en Authentication timestamp
*/
get authenticatedAt(): number | null {
return this._authenticatedAt;
}
/**
* @zh 令牌过期时间
* @en Token expiration time
*/
get expiresAt(): number | null {
return this._expiresAt;
}
/**
* @zh 检查是否有指定角色
* @en Check if has specified role
*/
hasRole(role: string): boolean {
return this._roles.includes(role);
}
/**
* @zh 检查是否有任一指定角色
* @en Check if has any of specified roles
*/
hasAnyRole(roles: string[]): boolean {
return roles.some(role => this._roles.includes(role));
}
/**
* @zh 检查是否有所有指定角色
* @en Check if has all specified roles
*/
hasAllRoles(roles: string[]): boolean {
return roles.every(role => this._roles.includes(role));
}
/**
* @zh 设置认证结果
* @en Set authentication result
*/
setAuthenticated(result: AuthResult<TUser>): void {
if (result.success && result.user) {
this._isAuthenticated = true;
this._user = result.user;
this._userId = this._extractor.getId(result.user);
this._roles = this._extractor.getRoles(result.user);
this._authenticatedAt = Date.now();
this._expiresAt = result.expiresAt ?? null;
} else {
this.clear();
}
}
/**
* @zh 清除认证状态
* @en Clear authentication state
*/
clear(): void {
this._isAuthenticated = false;
this._user = null;
this._userId = null;
this._roles = [];
this._authenticatedAt = null;
this._expiresAt = null;
}
}
/**
* @zh 创建访客认证上下文
* @en Create guest auth context
*/
export function createGuestContext<TUser = unknown>(): IAuthContext<TUser> {
return new AuthContext<TUser>();
}
/**
* @zh 从认证结果创建认证上下文
* @en Create auth context from auth result
*/
export function createAuthContext<TUser = unknown>(
result: AuthResult<TUser>,
extractor?: UserInfoExtractor<TUser>
): AuthContext<TUser> {
const context = new AuthContext<TUser>(extractor);
context.setAuthenticated(result);
return context;
}

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/**
* @zh 认证装饰器
* @en Authentication decorators
*/
export {
requireAuth,
getAuthMetadata,
AUTH_METADATA_KEY,
type AuthMetadata
} from './requireAuth.js';
export { requireRole } from './requireRole.js';

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/**
* @zh requireAuth 装饰器
* @en requireAuth decorator
*/
import type { RequireAuthOptions } from '../types.js';
/**
* @zh 认证元数据键
* @en Auth metadata key
*/
export const AUTH_METADATA_KEY = Symbol('authMetadata');
/**
* @zh 认证元数据
* @en Auth metadata
*/
export interface AuthMetadata {
requireAuth: boolean;
options?: RequireAuthOptions;
roles?: string[];
roleMode?: 'any' | 'all';
}
/**
* @zh 获取方法的认证元数据
* @en Get auth metadata for method
*/
export function getAuthMetadata(target: any, propertyKey: string): AuthMetadata | undefined {
const metadata = target[AUTH_METADATA_KEY] as Map<string, AuthMetadata> | undefined;
return metadata?.get(propertyKey);
}
/**
* @zh 设置方法的认证元数据
* @en Set auth metadata for method
*/
function setAuthMetadata(target: any, propertyKey: string, metadata: AuthMetadata): void {
if (!target[AUTH_METADATA_KEY]) {
target[AUTH_METADATA_KEY] = new Map<string, AuthMetadata>();
}
(target[AUTH_METADATA_KEY] as Map<string, AuthMetadata>).set(propertyKey, metadata);
}
/**
* @zh 要求认证装饰器
* @en Require authentication decorator
*
* @zh 标记方法需要认证才能访问,用于消息处理器
* @en Marks method as requiring authentication, used for message handlers
*
* @example
* ```typescript
* class GameRoom extends withRoomAuth(Room) {
* @requireAuth()
* @onMessage('Trade')
* handleTrade(data: TradeData, player: AuthPlayer) {
* // Only authenticated players can trade
* }
*
* @requireAuth({ allowGuest: true })
* @onMessage('Chat')
* handleChat(data: ChatData, player: AuthPlayer) {
* // Guests can also chat
* }
* }
* ```
*/
export function requireAuth(options?: RequireAuthOptions): MethodDecorator {
return function (
target: any,
propertyKey: string | symbol,
descriptor: PropertyDescriptor
) {
const key = String(propertyKey);
const existing = getAuthMetadata(target, key);
setAuthMetadata(target, key, {
...existing,
requireAuth: true,
options
});
return descriptor;
};
}

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/**
* @zh requireRole 装饰器
* @en requireRole decorator
*/
import type { RequireRoleOptions } from '../types.js';
import { AUTH_METADATA_KEY, getAuthMetadata, type AuthMetadata } from './requireAuth.js';
/**
* @zh 设置方法的认证元数据
* @en Set auth metadata for method
*/
function setAuthMetadata(target: any, propertyKey: string, metadata: AuthMetadata): void {
if (!target[AUTH_METADATA_KEY]) {
target[AUTH_METADATA_KEY] = new Map<string, AuthMetadata>();
}
(target[AUTH_METADATA_KEY] as Map<string, AuthMetadata>).set(propertyKey, metadata);
}
/**
* @zh 要求角色装饰器
* @en Require role decorator
*
* @zh 标记方法需要特定角色才能访问
* @en Marks method as requiring specific role(s)
*
* @example
* ```typescript
* class AdminRoom extends withRoomAuth(Room) {
* @requireRole('admin')
* @onMessage('Ban')
* handleBan(data: BanData, player: AuthPlayer) {
* // Only admins can ban
* }
*
* @requireRole(['moderator', 'admin'])
* @onMessage('Mute')
* handleMute(data: MuteData, player: AuthPlayer) {
* // Moderators or admins can mute
* }
*
* @requireRole(['verified', 'premium'], { mode: 'all' })
* @onMessage('SpecialFeature')
* handleSpecial(data: any, player: AuthPlayer) {
* // Requires both verified AND premium roles
* }
* }
* ```
*/
export function requireRole(
roles: string | string[],
options?: RequireRoleOptions
): MethodDecorator {
return function (
target: any,
propertyKey: string | symbol,
descriptor: PropertyDescriptor
) {
const key = String(propertyKey);
const existing = getAuthMetadata(target, key);
const roleArray = Array.isArray(roles) ? roles : [roles];
setAuthMetadata(target, key, {
...existing,
requireAuth: true,
roles: roleArray,
roleMode: options?.mode ?? 'any',
options
});
return descriptor;
};
}

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/**
* @zh 认证模块
* @en Authentication module
*
* @zh 为 @esengine/server 提供可插拔的认证系统
* @en Provides pluggable authentication system for @esengine/server
*
* @example
* ```typescript
* import { createServer, Room, onMessage } from '@esengine/server';
* import {
* withAuth,
* withRoomAuth,
* createJwtAuthProvider,
* requireAuth,
* requireRole,
* type AuthPlayer
* } from '@esengine/server/auth';
*
* // 1. Create auth provider
* const jwtProvider = createJwtAuthProvider({
* secret: process.env.JWT_SECRET!,
* expiresIn: 3600,
* });
*
* // 2. Wrap server with auth
* const server = withAuth(await createServer({ port: 3000 }), {
* provider: jwtProvider,
* extractCredentials: (req) => {
* const url = new URL(req.url, 'http://localhost');
* return url.searchParams.get('token');
* },
* });
*
* // 3. Create auth-enabled room
* class GameRoom extends withRoomAuth<User>(Room, {
* requireAuth: true,
* allowedRoles: ['player'],
* }) {
* onJoin(player: AuthPlayer<User>) {
* console.log(`${player.user?.name} joined`);
* }
*
* @requireAuth()
* @onMessage('Chat')
* handleChat(data: { text: string }, player: AuthPlayer<User>) {
* this.broadcast('Chat', { from: player.user?.name, text: data.text });
* }
*
* @requireRole('admin')
* @onMessage('Kick')
* handleKick(data: { playerId: string }, player: AuthPlayer<User>) {
* this.kick(data.playerId);
* }
* }
*
* server.define('game', GameRoom);
* await server.start();
* ```
*/
// Types
export type {
AuthResult,
AuthErrorCode,
IAuthProvider,
IAuthContext,
AuthConnectionData,
AuthConnection,
AuthApiContext,
AuthMsgContext,
ConnectionRequest,
AuthServerConfig,
AuthGameServer,
AuthRoomConfig,
RequireAuthOptions,
RequireRoleOptions
} from './types.js';
// Context
export {
AuthContext,
createGuestContext,
createAuthContext,
defaultUserExtractor,
type UserInfoExtractor
} from './context.js';
// Providers
export {
JwtAuthProvider,
createJwtAuthProvider,
type JwtAuthConfig,
type JwtPayload
} from './providers/JwtAuthProvider.js';
export {
SessionAuthProvider,
createSessionAuthProvider,
type SessionAuthConfig,
type SessionData,
type ISessionStorage
} from './providers/SessionAuthProvider.js';
// Mixins
export {
withAuth,
getAuthContext,
setAuthContext,
requireAuthentication,
requireRole as requireRoleCheck
} from './mixin/withAuth.js';
export {
withRoomAuth,
AuthRoomBase,
type AuthPlayer,
type IAuthRoom,
type AuthRoomClass
} from './mixin/withRoomAuth.js';
// Decorators
export {
requireAuth,
requireRole,
getAuthMetadata,
AUTH_METADATA_KEY,
type AuthMetadata
} from './decorators/index.js';

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/**
* @zh 认证 Mixin
* @en Authentication mixins
*/
export {
withAuth,
getAuthContext,
setAuthContext,
requireAuthentication,
requireRole
} from './withAuth.js';
export {
withRoomAuth,
AuthRoomBase,
type AuthPlayer,
type IAuthRoom,
type AuthRoomClass
} from './withRoomAuth.js';

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/**
* @zh 服务器认证 Mixin
* @en Server authentication mixin
*/
import type { ServerConnection, GameServer } from '../../types/index.js';
import type {
IAuthProvider,
AuthResult,
AuthServerConfig,
AuthGameServer,
IAuthContext,
ConnectionRequest
} from '../types.js';
import { AuthContext } from '../context.js';
/**
* @zh 认证数据键
* @en Auth data key
*/
const AUTH_CONTEXT_KEY = Symbol('authContext');
/**
* @zh 获取连接的认证上下文
* @en Get auth context for connection
*/
export function getAuthContext<TUser = unknown>(conn: ServerConnection): IAuthContext<TUser> | null {
const data = conn.data as Record<symbol, unknown>;
return (data[AUTH_CONTEXT_KEY] as IAuthContext<TUser>) ?? null;
}
/**
* @zh 设置连接的认证上下文
* @en Set auth context for connection
*/
export function setAuthContext<TUser = unknown>(conn: ServerConnection, context: IAuthContext<TUser>): void {
const data = conn.data as Record<symbol, unknown>;
data[AUTH_CONTEXT_KEY] = context;
}
/**
* @zh 包装服务器添加认证功能
* @en Wrap server with authentication functionality
*
* @zh 使用 mixin 模式为服务器添加认证能力,不修改原始服务器
* @en Uses mixin pattern to add authentication to server without modifying original
*
* @example
* ```typescript
* import { createServer } from '@esengine/server';
* import { withAuth, createJwtAuthProvider } from '@esengine/server/auth';
*
* const jwtProvider = createJwtAuthProvider({
* secret: 'your-secret-key',
* expiresIn: 3600,
* });
*
* const server = withAuth(await createServer({ port: 3000 }), {
* provider: jwtProvider,
* extractCredentials: (req) => {
* const url = new URL(req.url, 'http://localhost');
* return url.searchParams.get('token');
* },
* onAuthSuccess: (conn, user) => {
* console.log(`User ${user.name} authenticated`);
* },
* onAuthFailure: (conn, error) => {
* console.log(`Auth failed: ${error.error}`);
* }
* });
*
* await server.start();
* ```
*/
export function withAuth<TUser = unknown>(
server: GameServer,
config: AuthServerConfig<TUser>
): AuthGameServer<TUser> {
const {
provider,
extractCredentials,
autoAuthOnConnect = true,
disconnectOnAuthFailure = false,
onAuthSuccess,
onAuthFailure
} = config;
const originalConnections = server.connections;
const connectionAuthMap = new WeakMap<ServerConnection, AuthContext<TUser>>();
const authServer: AuthGameServer<TUser> = {
...server,
get authProvider(): IAuthProvider<TUser> {
return provider;
},
async authenticate(
conn: ServerConnection,
credentials: unknown
): Promise<AuthResult<TUser>> {
const result = await provider.verify(credentials as never);
let authContext = connectionAuthMap.get(conn);
if (!authContext) {
authContext = new AuthContext<TUser>();
connectionAuthMap.set(conn, authContext);
setAuthContext(conn, authContext);
}
if (result.success) {
authContext.setAuthenticated(result);
await onAuthSuccess?.(conn, result.user!);
} else {
authContext.clear();
await onAuthFailure?.(conn, result);
}
return result;
},
getAuthContext(conn: ServerConnection): IAuthContext<TUser> | null {
return connectionAuthMap.get(conn) ?? null;
},
get connections(): ReadonlyArray<ServerConnection> {
return originalConnections;
}
};
const originalOnConnect = (server as any)._onConnect;
(server as any)._onConnect = async (conn: ServerConnection, req?: unknown) => {
const authContext = new AuthContext<TUser>();
connectionAuthMap.set(conn, authContext);
setAuthContext(conn, authContext);
if (autoAuthOnConnect && extractCredentials && req) {
try {
const connReq = req as ConnectionRequest;
const credentials = await extractCredentials(connReq);
if (credentials) {
const result = await provider.verify(credentials as never);
if (result.success) {
authContext.setAuthenticated(result);
await onAuthSuccess?.(conn, result.user!);
} else {
await onAuthFailure?.(conn, result);
if (disconnectOnAuthFailure) {
(conn as any).close?.();
return;
}
}
}
} catch (error) {
console.error('[Auth] Error during auto-authentication:', error);
}
}
if (originalOnConnect) {
await originalOnConnect(conn, req);
}
};
const originalOnDisconnect = (server as any)._onDisconnect;
(server as any)._onDisconnect = async (conn: ServerConnection) => {
connectionAuthMap.delete(conn);
if (originalOnDisconnect) {
await originalOnDisconnect(conn);
}
};
return authServer;
}
/**
* @zh 创建认证中间件
* @en Create authentication middleware
*
* @zh 用于在 API 处理器中检查认证状态
* @en Used to check authentication status in API handlers
*/
export function requireAuthentication<TUser = unknown>(
conn: ServerConnection,
options?: { errorMessage?: string }
): IAuthContext<TUser> {
const auth = getAuthContext<TUser>(conn);
if (!auth || !auth.isAuthenticated) {
throw new Error(options?.errorMessage ?? 'Authentication required');
}
return auth;
}
/**
* @zh 创建角色检查中间件
* @en Create role check middleware
*/
export function requireRole<TUser = unknown>(
conn: ServerConnection,
roles: string | string[],
options?: { mode?: 'any' | 'all'; errorMessage?: string }
): IAuthContext<TUser> {
const auth = requireAuthentication<TUser>(conn);
const roleArray = Array.isArray(roles) ? roles : [roles];
const mode = options?.mode ?? 'any';
const hasRole = mode === 'any'
? auth.hasAnyRole(roleArray)
: auth.hasAllRoles(roleArray);
if (!hasRole) {
throw new Error(options?.errorMessage ?? 'Insufficient permissions');
}
return auth;
}

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/**
* @zh 房间认证 Mixin
* @en Room authentication mixin
*/
import type { Room, Player } from '../../room/index.js';
import type { IAuthContext, AuthRoomConfig } from '../types.js';
import { getAuthContext } from './withAuth.js';
import { createGuestContext } from '../context.js';
/**
* @zh 带认证的玩家
* @en Player with authentication
*/
export interface AuthPlayer<TUser = unknown, TData = Record<string, unknown>> extends Player<TData> {
/**
* @zh 认证上下文
* @en Authentication context
*/
readonly auth: IAuthContext<TUser>;
/**
* @zh 用户信息(快捷访问)
* @en User info (shortcut)
*/
readonly user: TUser | null;
}
/**
* @zh 带认证的房间接口
* @en Room with authentication interface
*/
export interface IAuthRoom<TUser = unknown> {
/**
* @zh 认证钩子(在 onJoin 之前调用)
* @en Auth hook (called before onJoin)
*/
onAuth?(player: AuthPlayer<TUser>): boolean | Promise<boolean>;
/**
* @zh 获取带认证信息的玩家
* @en Get player with auth info
*/
getAuthPlayer(id: string): AuthPlayer<TUser> | undefined;
/**
* @zh 获取所有带认证信息的玩家
* @en Get all players with auth info
*/
getAuthPlayers(): AuthPlayer<TUser>[];
/**
* @zh 按角色获取玩家
* @en Get players by role
*/
getPlayersByRole(role: string): AuthPlayer<TUser>[];
/**
* @zh 按用户 ID 获取玩家
* @en Get player by user ID
*/
getPlayerByUserId(userId: string): AuthPlayer<TUser> | undefined;
}
/**
* @zh 认证房间构造器类型
* @en Auth room constructor type
*/
export type AuthRoomClass<TUser = unknown> = new (...args: any[]) => Room & IAuthRoom<TUser>;
/**
* @zh 玩家认证上下文存储
* @en Player auth context storage
*/
const playerAuthContexts = new WeakMap<Player, IAuthContext<unknown>>();
/**
* @zh 包装玩家对象添加认证信息
* @en Wrap player object with auth info
*/
function wrapPlayerWithAuth<TUser>(player: Player, authContext: IAuthContext<TUser>): AuthPlayer<TUser> {
playerAuthContexts.set(player, authContext);
Object.defineProperty(player, 'auth', {
get: () => playerAuthContexts.get(player) ?? createGuestContext<TUser>(),
enumerable: true,
configurable: false
});
Object.defineProperty(player, 'user', {
get: () => (playerAuthContexts.get(player) as IAuthContext<TUser> | undefined)?.user ?? null,
enumerable: true,
configurable: false
});
return player as AuthPlayer<TUser>;
}
/**
* @zh 包装房间类添加认证功能
* @en Wrap room class with authentication functionality
*
* @zh 使用 mixin 模式为房间添加认证检查,在玩家加入前验证认证状态
* @en Uses mixin pattern to add auth checks to room, validates auth before player joins
*
* @example
* ```typescript
* import { Room, onMessage } from '@esengine/server';
* import { withRoomAuth, type AuthPlayer } from '@esengine/server/auth';
*
* interface User {
* id: string;
* name: string;
* roles: string[];
* }
*
* class GameRoom extends withRoomAuth<User>(Room, {
* requireAuth: true,
* allowedRoles: ['player', 'premium'],
* }) {
* onJoin(player: AuthPlayer<User>) {
* console.log(`${player.user?.name} joined the game`);
* this.broadcast('PlayerJoined', {
* id: player.id,
* name: player.user?.name
* });
* }
*
* // Optional: custom auth validation
* async onAuth(player: AuthPlayer<User>): Promise<boolean> {
* // Additional validation logic
* if (player.auth.hasRole('banned')) {
* return false;
* }
* return true;
* }
*
* @onMessage('Chat')
* handleChat(data: { text: string }, player: AuthPlayer<User>) {
* this.broadcast('Chat', {
* from: player.user?.name ?? 'Guest',
* text: data.text
* });
* }
* }
* ```
*/
export function withRoomAuth<TUser = unknown, TBase extends new (...args: any[]) => Room = new (...args: any[]) => Room>(
Base: TBase,
config: AuthRoomConfig = {}
): TBase & (new (...args: any[]) => IAuthRoom<TUser>) {
const {
requireAuth = true,
allowedRoles = [],
roleCheckMode = 'any'
} = config;
abstract class AuthRoom extends (Base as new (...args: any[]) => Room) implements IAuthRoom<TUser> {
private _originalOnJoin: ((player: Player) => void | Promise<void>) | undefined;
constructor(...args: any[]) {
super(...args);
this._originalOnJoin = this.onJoin?.bind(this);
this.onJoin = this._authOnJoin.bind(this);
}
/**
* @zh 认证钩子(可覆盖)
* @en Auth hook (can be overridden)
*/
onAuth?(player: AuthPlayer<TUser>): boolean | Promise<boolean>;
/**
* @zh 包装的 onJoin 方法
* @en Wrapped onJoin method
*/
private async _authOnJoin(player: Player): Promise<void> {
const conn = (player as any).connection ?? (player as any)._conn;
const authContext = conn
? (getAuthContext<TUser>(conn) ?? createGuestContext<TUser>())
: createGuestContext<TUser>();
if (requireAuth && !authContext.isAuthenticated) {
console.warn(`[AuthRoom] Rejected unauthenticated player: ${player.id}`);
this.kick(player as any, 'Authentication required');
return;
}
if (allowedRoles.length > 0) {
const hasRole = roleCheckMode === 'any'
? authContext.hasAnyRole(allowedRoles)
: authContext.hasAllRoles(allowedRoles);
if (!hasRole) {
console.warn(`[AuthRoom] Rejected player ${player.id}: insufficient roles`);
this.kick(player as any, 'Insufficient permissions');
return;
}
}
const authPlayer = wrapPlayerWithAuth<TUser>(player, authContext);
if (typeof this.onAuth === 'function') {
try {
const allowed = await this.onAuth(authPlayer);
if (!allowed) {
console.warn(`[AuthRoom] Rejected player ${player.id}: onAuth returned false`);
this.kick(player as any, 'Authentication rejected');
return;
}
} catch (error) {
console.error(`[AuthRoom] Error in onAuth for player ${player.id}:`, error);
this.kick(player as any, 'Authentication error');
return;
}
}
if (this._originalOnJoin) {
await this._originalOnJoin(authPlayer as unknown as Player);
}
}
/**
* @zh 获取带认证信息的玩家
* @en Get player with auth info
*/
getAuthPlayer(id: string): AuthPlayer<TUser> | undefined {
const player = this.getPlayer(id);
return player as AuthPlayer<TUser> | undefined;
}
/**
* @zh 获取所有带认证信息的玩家
* @en Get all players with auth info
*/
getAuthPlayers(): AuthPlayer<TUser>[] {
return this.players as AuthPlayer<TUser>[];
}
/**
* @zh 按角色获取玩家
* @en Get players by role
*/
getPlayersByRole(role: string): AuthPlayer<TUser>[] {
return this.getAuthPlayers().filter(p => p.auth?.hasRole(role));
}
/**
* @zh 按用户 ID 获取玩家
* @en Get player by user ID
*/
getPlayerByUserId(userId: string): AuthPlayer<TUser> | undefined {
return this.getAuthPlayers().find(p => p.auth?.userId === userId);
}
}
return AuthRoom as unknown as TBase & (new (...args: any[]) => IAuthRoom<TUser>);
}
/**
* @zh 抽象认证房间基类
* @en Abstract auth room base class
*
* @zh 如果不想使用 mixin可以直接继承此类
* @en If you don't want to use mixin, you can extend this class directly
*
* @example
* ```typescript
* import { AuthRoomBase } from '@esengine/server/auth';
*
* class GameRoom extends AuthRoomBase<User> {
* protected readonly authConfig = {
* requireAuth: true,
* allowedRoles: ['player']
* };
*
* onJoin(player: AuthPlayer<User>) {
* // player has .auth and .user properties
* }
* }
* ```
*/
export abstract class AuthRoomBase<TUser = unknown, TState = any, TPlayerData = Record<string, unknown>>
implements IAuthRoom<TUser> {
/**
* @zh 认证配置(子类可覆盖)
* @en Auth config (can be overridden by subclass)
*/
protected readonly authConfig: AuthRoomConfig = {
requireAuth: true,
allowedRoles: [],
roleCheckMode: 'any'
};
/**
* @zh 认证钩子
* @en Auth hook
*/
onAuth?(player: AuthPlayer<TUser>): boolean | Promise<boolean>;
getAuthPlayer(id: string): AuthPlayer<TUser> | undefined {
return undefined;
}
getAuthPlayers(): AuthPlayer<TUser>[] {
return [];
}
getPlayersByRole(role: string): AuthPlayer<TUser>[] {
return [];
}
getPlayerByUserId(userId: string): AuthPlayer<TUser> | undefined {
return undefined;
}
}

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/**
* @zh 认证提供者接口
* @en Authentication provider interface
*/
export type { IAuthProvider, AuthResult, AuthErrorCode } from '../types.js';

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/**
* @zh JWT 认证提供者
* @en JWT authentication provider
*/
import type { IAuthProvider, AuthResult, AuthErrorCode } from '../types.js';
import * as jwt from 'jsonwebtoken';
/**
* @zh JWT 载荷
* @en JWT payload
*/
export interface JwtPayload {
/**
* @zh 主题(用户 ID
* @en Subject (user ID)
*/
sub?: string;
/**
* @zh 签发时间
* @en Issued at
*/
iat?: number;
/**
* @zh 过期时间
* @en Expiration time
*/
exp?: number;
/**
* @zh 自定义字段
* @en Custom fields
*/
[key: string]: unknown;
}
/**
* @zh JWT 认证配置
* @en JWT authentication configuration
*/
export interface JwtAuthConfig<TUser = unknown> {
/**
* @zh 密钥
* @en Secret key
*/
secret: string;
/**
* @zh 算法
* @en Algorithm
* @defaultValue 'HS256'
*/
algorithm?: 'HS256' | 'HS384' | 'HS512' | 'RS256' | 'RS384' | 'RS512';
/**
* @zh 令牌过期时间(秒)
* @en Token expiration in seconds
* @defaultValue 3600
*/
expiresIn?: number;
/**
* @zh 从载荷获取用户信息
* @en Get user from payload
*/
getUser?: (payload: JwtPayload) => TUser | Promise<TUser | null> | null;
/**
* @zh 签发者
* @en Issuer
*/
issuer?: string;
/**
* @zh 受众
* @en Audience
*/
audience?: string;
}
/**
* @zh JWT 认证提供者
* @en JWT authentication provider
*
* @zh 使用 jsonwebtoken 库实现 JWT 认证
* @en Uses jsonwebtoken library for JWT authentication
*
* @example
* ```typescript
* const jwtProvider = createJwtAuthProvider({
* secret: 'your-secret-key',
* expiresIn: 3600,
* getUser: async (payload) => {
* return await db.users.findById(payload.sub);
* }
* });
* ```
*/
export class JwtAuthProvider<TUser = unknown> implements IAuthProvider<TUser, string> {
readonly name = 'jwt';
private _config: Required<Pick<JwtAuthConfig<TUser>, 'secret' | 'algorithm' | 'expiresIn'>> & JwtAuthConfig<TUser>;
constructor(config: JwtAuthConfig<TUser>) {
this._config = {
algorithm: 'HS256',
expiresIn: 3600,
...config
};
}
/**
* @zh 验证令牌
* @en Verify token
*/
async verify(token: string): Promise<AuthResult<TUser>> {
if (!token) {
return {
success: false,
error: 'Token is required',
errorCode: 'INVALID_TOKEN'
};
}
try {
const verifyOptions: jwt.VerifyOptions = {
algorithms: [this._config.algorithm]
};
if (this._config.issuer) {
verifyOptions.issuer = this._config.issuer;
}
if (this._config.audience) {
verifyOptions.audience = this._config.audience;
}
const payload = jwt.verify(token, this._config.secret, verifyOptions) as JwtPayload;
let user: TUser | null = null;
if (this._config.getUser) {
user = await this._config.getUser(payload);
if (!user) {
return {
success: false,
error: 'User not found',
errorCode: 'USER_NOT_FOUND'
};
}
} else {
user = payload as unknown as TUser;
}
return {
success: true,
user,
token,
expiresAt: payload.exp ? payload.exp * 1000 : undefined
};
} catch (error) {
const err = error as Error;
if (err.name === 'TokenExpiredError') {
return {
success: false,
error: 'Token has expired',
errorCode: 'EXPIRED_TOKEN'
};
}
return {
success: false,
error: err.message || 'Invalid token',
errorCode: 'INVALID_TOKEN'
};
}
}
/**
* @zh 刷新令牌
* @en Refresh token
*/
async refresh(token: string): Promise<AuthResult<TUser>> {
const result = await this.verify(token);
if (!result.success || !result.user) {
return result;
}
const payload = jwt.decode(token) as JwtPayload;
// Remove JWT standard claims that will be regenerated
const { iat, exp, nbf, ...restPayload } = payload;
const newToken = this.sign(restPayload);
return {
success: true,
user: result.user,
token: newToken,
expiresAt: Date.now() + this._config.expiresIn * 1000
};
}
/**
* @zh 生成令牌
* @en Generate token
*/
sign(payload: Record<string, unknown>): string {
const signOptions: jwt.SignOptions = {
algorithm: this._config.algorithm,
expiresIn: this._config.expiresIn
};
if (this._config.issuer) {
signOptions.issuer = this._config.issuer;
}
if (this._config.audience) {
signOptions.audience = this._config.audience;
}
return jwt.sign(payload, this._config.secret, signOptions);
}
/**
* @zh 解码令牌(不验证)
* @en Decode token (without verification)
*/
decode(token: string): JwtPayload | null {
return jwt.decode(token) as JwtPayload | null;
}
}
/**
* @zh 创建 JWT 认证提供者
* @en Create JWT authentication provider
*
* @example
* ```typescript
* import { createJwtAuthProvider } from '@esengine/server/auth';
*
* const jwtProvider = createJwtAuthProvider({
* secret: process.env.JWT_SECRET!,
* expiresIn: 3600,
* getUser: async (payload) => {
* return { id: payload.sub, name: payload.name };
* }
* });
* ```
*/
export function createJwtAuthProvider<TUser = unknown>(
config: JwtAuthConfig<TUser>
): JwtAuthProvider<TUser> {
return new JwtAuthProvider<TUser>(config);
}

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/**
* @zh Session 认证提供者
* @en Session authentication provider
*/
import { randomBytes } from 'crypto';
import type { IAuthProvider, AuthResult } from '../types.js';
/**
* @zh Session 存储接口(兼容 ITransactionStorage
* @en Session storage interface (compatible with ITransactionStorage)
*/
export interface ISessionStorage {
get<T>(key: string): Promise<T | null>;
set<T>(key: string, value: T, ttl?: number): Promise<void>;
delete(key: string): Promise<boolean>;
}
/**
* @zh Session 数据
* @en Session data
*/
export interface SessionData<TUser = unknown> {
/**
* @zh 用户信息
* @en User information
*/
user: TUser;
/**
* @zh 创建时间
* @en Created at
*/
createdAt: number;
/**
* @zh 最后活跃时间
* @en Last active at
*/
lastActiveAt: number;
/**
* @zh 自定义数据
* @en Custom data
*/
data?: Record<string, unknown>;
}
/**
* @zh Session 认证配置
* @en Session authentication configuration
*/
export interface SessionAuthConfig<TUser = unknown> {
/**
* @zh Session 存储
* @en Session storage
*/
storage: ISessionStorage;
/**
* @zh Session 过期时间(毫秒)
* @en Session expiration in milliseconds
* @defaultValue 86400000 (24h)
*/
sessionTTL?: number;
/**
* @zh Session 键前缀
* @en Session key prefix
* @defaultValue 'session:'
*/
prefix?: string;
/**
* @zh 验证用户(可选额外验证)
* @en Validate user (optional extra validation)
*/
validateUser?: (user: TUser) => boolean | Promise<boolean>;
/**
* @zh 是否自动续期
* @en Auto renew session
* @defaultValue true
*/
autoRenew?: boolean;
}
/**
* @zh Session 认证提供者
* @en Session authentication provider
*
* @zh 基于存储的会话认证,支持 Redis、MongoDB 等后端
* @en Storage-based session authentication, supports Redis, MongoDB, etc.
*
* @example
* ```typescript
* import { createSessionAuthProvider } from '@esengine/server/auth';
* import { createRedisStorage } from '@esengine/transaction';
*
* const sessionProvider = createSessionAuthProvider({
* storage: createRedisStorage({ factory: () => new Redis() }),
* sessionTTL: 86400000, // 24 hours
* });
* ```
*/
export class SessionAuthProvider<TUser = unknown> implements IAuthProvider<TUser, string> {
readonly name = 'session';
private _config: Required<Pick<SessionAuthConfig<TUser>, 'sessionTTL' | 'prefix' | 'autoRenew'>> & SessionAuthConfig<TUser>;
constructor(config: SessionAuthConfig<TUser>) {
this._config = {
sessionTTL: 86400000,
prefix: 'session:',
autoRenew: true,
...config
};
}
/**
* @zh 获取存储键
* @en Get storage key
*/
private _getKey(sessionId: string): string {
return `${this._config.prefix}${sessionId}`;
}
/**
* @zh 验证 Session
* @en Verify session
*/
async verify(sessionId: string): Promise<AuthResult<TUser>> {
if (!sessionId) {
return {
success: false,
error: 'Session ID is required',
errorCode: 'INVALID_TOKEN'
};
}
const key = this._getKey(sessionId);
const session = await this._config.storage.get<SessionData<TUser>>(key);
if (!session) {
return {
success: false,
error: 'Session not found or expired',
errorCode: 'EXPIRED_TOKEN'
};
}
if (this._config.validateUser) {
const isValid = await this._config.validateUser(session.user);
if (!isValid) {
return {
success: false,
error: 'User validation failed',
errorCode: 'ACCOUNT_DISABLED'
};
}
}
if (this._config.autoRenew) {
session.lastActiveAt = Date.now();
await this._config.storage.set(key, session, this._config.sessionTTL);
}
return {
success: true,
user: session.user,
token: sessionId,
expiresAt: session.createdAt + this._config.sessionTTL
};
}
/**
* @zh 刷新 Session
* @en Refresh session
*/
async refresh(sessionId: string): Promise<AuthResult<TUser>> {
const result = await this.verify(sessionId);
if (!result.success) {
return result;
}
const key = this._getKey(sessionId);
const session = await this._config.storage.get<SessionData<TUser>>(key);
if (session) {
session.lastActiveAt = Date.now();
await this._config.storage.set(key, session, this._config.sessionTTL);
}
return {
...result,
expiresAt: Date.now() + this._config.sessionTTL
};
}
/**
* @zh 撤销 Session
* @en Revoke session
*/
async revoke(sessionId: string): Promise<boolean> {
const key = this._getKey(sessionId);
return await this._config.storage.delete(key);
}
/**
* @zh 创建 Session
* @en Create session
*/
async createSession(user: TUser, data?: Record<string, unknown>): Promise<string> {
const sessionId = this._generateSessionId();
const key = this._getKey(sessionId);
const session: SessionData<TUser> = {
user,
createdAt: Date.now(),
lastActiveAt: Date.now(),
data
};
await this._config.storage.set(key, session, this._config.sessionTTL);
return sessionId;
}
/**
* @zh 获取 Session 数据
* @en Get session data
*/
async getSession(sessionId: string): Promise<SessionData<TUser> | null> {
const key = this._getKey(sessionId);
return await this._config.storage.get<SessionData<TUser>>(key);
}
/**
* @zh 更新 Session 数据
* @en Update session data
*/
async updateSession(sessionId: string, data: Record<string, unknown>): Promise<boolean> {
const key = this._getKey(sessionId);
const session = await this._config.storage.get<SessionData<TUser>>(key);
if (!session) {
return false;
}
session.data = { ...session.data, ...data };
session.lastActiveAt = Date.now();
await this._config.storage.set(key, session, this._config.sessionTTL);
return true;
}
/**
* @zh 生成 Session ID使用加密安全的随机数
* @en Generate session ID (using cryptographically secure random)
*/
private _generateSessionId(): string {
return randomBytes(32).toString('hex');
}
}
/**
* @zh 创建 Session 认证提供者
* @en Create session authentication provider
*
* @example
* ```typescript
* import { createSessionAuthProvider } from '@esengine/server/auth';
* import { MemoryStorage } from '@esengine/transaction';
*
* const sessionProvider = createSessionAuthProvider({
* storage: new MemoryStorage(),
* sessionTTL: 3600000, // 1 hour
* });
*
* // Create a session
* const sessionId = await sessionProvider.createSession({ id: '1', name: 'Alice' });
*
* // Verify session
* const result = await sessionProvider.verify(sessionId);
* ```
*/
export function createSessionAuthProvider<TUser = unknown>(
config: SessionAuthConfig<TUser>
): SessionAuthProvider<TUser> {
return new SessionAuthProvider<TUser>(config);
}

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/**
* @zh 认证提供者
* @en Authentication providers
*/
export type { IAuthProvider, AuthResult, AuthErrorCode } from './IAuthProvider.js';
export { JwtAuthProvider, createJwtAuthProvider, type JwtAuthConfig, type JwtPayload } from './JwtAuthProvider.js';
export { SessionAuthProvider, createSessionAuthProvider, type SessionAuthConfig, type SessionData, type ISessionStorage } from './SessionAuthProvider.js';

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/**
* @zh 模拟认证提供者
* @en Mock authentication provider
*/
import type { IAuthProvider, AuthResult, AuthErrorCode } from '../types.js';
/**
* @zh 模拟用户
* @en Mock user
*/
export interface MockUser {
id: string;
name?: string;
roles?: string[];
[key: string]: unknown;
}
/**
* @zh 模拟认证配置
* @en Mock authentication configuration
*/
export interface MockAuthConfig {
/**
* @zh 预设用户列表
* @en Preset user list
*/
users?: MockUser[];
/**
* @zh 默认用户(无 token 时返回)
* @en Default user (returned when no token)
*/
defaultUser?: MockUser;
/**
* @zh 模拟延迟(毫秒)
* @en Simulated delay (ms)
*/
delay?: number;
/**
* @zh 是否自动创建用户
* @en Auto create users
*/
autoCreate?: boolean;
/**
* @zh 验证令牌格式
* @en Token format validator
*/
validateToken?: (token: string) => boolean;
}
/**
* @zh 模拟认证提供者
* @en Mock authentication provider
*
* @zh 用于测试的认证提供者,不需要真实的 JWT 或数据库
* @en Authentication provider for testing, no real JWT or database required
*
* @example
* ```typescript
* import { createMockAuthProvider } from '@esengine/server/auth/testing';
*
* const mockProvider = createMockAuthProvider({
* users: [
* { id: '1', name: 'Alice', roles: ['player'] },
* { id: '2', name: 'Bob', roles: ['admin'] },
* ],
* autoCreate: true, // Unknown tokens create guest users
* });
*
* // Verify with user ID as token
* const result = await mockProvider.verify('1');
* // result.user = { id: '1', name: 'Alice', roles: ['player'] }
* ```
*/
export class MockAuthProvider<TUser extends MockUser = MockUser>
implements IAuthProvider<TUser, string> {
readonly name = 'mock';
private _users: Map<string, TUser>;
private _config: MockAuthConfig;
private _revokedTokens: Set<string> = new Set();
constructor(config: MockAuthConfig = {}) {
this._config = config;
this._users = new Map();
if (config.users) {
for (const user of config.users) {
this._users.set(user.id, user as TUser);
}
}
}
/**
* @zh 模拟延迟
* @en Simulate delay
*/
private async _delay(): Promise<void> {
if (this._config.delay && this._config.delay > 0) {
await new Promise(resolve => setTimeout(resolve, this._config.delay));
}
}
/**
* @zh 验证令牌
* @en Verify token
*/
async verify(token: string): Promise<AuthResult<TUser>> {
await this._delay();
if (!token) {
if (this._config.defaultUser) {
return {
success: true,
user: this._config.defaultUser as TUser,
token: 'default'
};
}
return {
success: false,
error: 'Token is required',
errorCode: 'INVALID_TOKEN'
};
}
if (this._revokedTokens.has(token)) {
return {
success: false,
error: 'Token has been revoked',
errorCode: 'INVALID_TOKEN'
};
}
if (this._config.validateToken && !this._config.validateToken(token)) {
return {
success: false,
error: 'Invalid token format',
errorCode: 'INVALID_TOKEN'
};
}
const user = this._users.get(token);
if (user) {
return {
success: true,
user,
token,
expiresAt: Date.now() + 3600000
};
}
if (this._config.autoCreate) {
const newUser = {
id: token,
name: `User_${token}`,
roles: ['guest']
} as TUser;
this._users.set(token, newUser);
return {
success: true,
user: newUser,
token,
expiresAt: Date.now() + 3600000
};
}
return {
success: false,
error: 'User not found',
errorCode: 'USER_NOT_FOUND'
};
}
/**
* @zh 刷新令牌
* @en Refresh token
*/
async refresh(token: string): Promise<AuthResult<TUser>> {
return this.verify(token);
}
/**
* @zh 撤销令牌
* @en Revoke token
*/
async revoke(token: string): Promise<boolean> {
this._revokedTokens.add(token);
return true;
}
/**
* @zh 添加用户
* @en Add user
*/
addUser(user: TUser): void {
this._users.set(user.id, user);
}
/**
* @zh 移除用户
* @en Remove user
*/
removeUser(id: string): boolean {
return this._users.delete(id);
}
/**
* @zh 获取用户
* @en Get user
*/
getUser(id: string): TUser | undefined {
return this._users.get(id);
}
/**
* @zh 获取所有用户
* @en Get all users
*/
getUsers(): TUser[] {
return Array.from(this._users.values());
}
/**
* @zh 清空所有状态
* @en Clear all state
*/
clear(): void {
this._users.clear();
this._revokedTokens.clear();
if (this._config.users) {
for (const user of this._config.users) {
this._users.set(user.id, user as TUser);
}
}
}
/**
* @zh 生成测试令牌
* @en Generate test token
*/
generateToken(userId: string): string {
return userId;
}
}
/**
* @zh 创建模拟认证提供者
* @en Create mock authentication provider
*
* @example
* ```typescript
* const provider = createMockAuthProvider({
* users: [
* { id: 'admin', name: 'Admin', roles: ['admin'] }
* ]
* });
*
* // Use in tests
* const server = withAuth(await createServer({ port: 0 }), {
* provider,
* extractCredentials: (req) => req.headers['x-token']
* });
* ```
*/
export function createMockAuthProvider<TUser extends MockUser = MockUser>(
config?: MockAuthConfig
): MockAuthProvider<TUser> {
return new MockAuthProvider<TUser>(config);
}

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/**
* @zh 认证测试工具
* @en Authentication testing utilities
*/
export {
MockAuthProvider,
createMockAuthProvider,
type MockUser,
type MockAuthConfig
} from './MockAuthProvider.js';

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/**
* @zh 认证系统类型定义
* @en Authentication system type definitions
*/
import type { ServerConnection, ApiContext, MsgContext, GameServer } from '../types/index.js';
// ============================================================================
// Error Codes
// ============================================================================
/**
* @zh 认证错误代码
* @en Authentication error codes
*/
export type AuthErrorCode =
| 'INVALID_CREDENTIALS'
| 'EXPIRED_TOKEN'
| 'INVALID_TOKEN'
| 'USER_NOT_FOUND'
| 'ACCOUNT_DISABLED'
| 'RATE_LIMITED'
| 'INSUFFICIENT_PERMISSIONS';
// ============================================================================
// Auth Result
// ============================================================================
/**
* @zh 认证结果
* @en Authentication result
*/
export interface AuthResult<TUser = unknown> {
/**
* @zh 是否成功
* @en Whether succeeded
*/
success: boolean;
/**
* @zh 用户信息
* @en User information
*/
user?: TUser;
/**
* @zh 错误信息
* @en Error message
*/
error?: string;
/**
* @zh 错误代码
* @en Error code
*/
errorCode?: AuthErrorCode;
/**
* @zh 令牌
* @en Token
*/
token?: string;
/**
* @zh 令牌过期时间(时间戳)
* @en Token expiration time (timestamp)
*/
expiresAt?: number;
}
// ============================================================================
// Auth Provider
// ============================================================================
/**
* @zh 认证提供者接口
* @en Authentication provider interface
*/
export interface IAuthProvider<TUser = unknown, TCredentials = unknown> {
/**
* @zh 提供者名称
* @en Provider name
*/
readonly name: string;
/**
* @zh 验证凭证
* @en Verify credentials
*
* @param credentials - @zh 凭证数据 @en Credential data
* @returns @zh 验证结果 @en Verification result
*/
verify(credentials: TCredentials): Promise<AuthResult<TUser>>;
/**
* @zh 刷新令牌(可选)
* @en Refresh token (optional)
*/
refresh?(token: string): Promise<AuthResult<TUser>>;
/**
* @zh 撤销令牌(可选)
* @en Revoke token (optional)
*/
revoke?(token: string): Promise<boolean>;
}
// ============================================================================
// Auth Context
// ============================================================================
/**
* @zh 认证上下文接口
* @en Authentication context interface
*/
export interface IAuthContext<TUser = unknown> {
/**
* @zh 是否已认证
* @en Whether authenticated
*/
readonly isAuthenticated: boolean;
/**
* @zh 用户信息
* @en User information
*/
readonly user: TUser | null;
/**
* @zh 用户 ID
* @en User ID
*/
readonly userId: string | null;
/**
* @zh 用户角色
* @en User roles
*/
readonly roles: ReadonlyArray<string>;
/**
* @zh 认证时间
* @en Authentication timestamp
*/
readonly authenticatedAt: number | null;
/**
* @zh 令牌过期时间
* @en Token expiration time
*/
readonly expiresAt: number | null;
/**
* @zh 检查是否有指定角色
* @en Check if has specified role
*/
hasRole(role: string): boolean;
/**
* @zh 检查是否有任一指定角色
* @en Check if has any of specified roles
*/
hasAnyRole(roles: string[]): boolean;
/**
* @zh 检查是否有所有指定角色
* @en Check if has all specified roles
*/
hasAllRoles(roles: string[]): boolean;
}
// ============================================================================
// Auth Connection
// ============================================================================
/**
* @zh 认证连接数据
* @en Authentication connection data
*/
export interface AuthConnectionData<TUser = unknown> {
/**
* @zh 认证上下文
* @en Authentication context
*/
auth: IAuthContext<TUser>;
}
/**
* @zh 带认证的连接
* @en Connection with authentication
*/
export interface AuthConnection<TUser = unknown, TData extends AuthConnectionData<TUser> = AuthConnectionData<TUser>>
extends ServerConnection<TData> {
/**
* @zh 认证上下文(快捷访问)
* @en Authentication context (shortcut)
*/
readonly auth: IAuthContext<TUser>;
}
/**
* @zh 带认证的 API 上下文
* @en API context with authentication
*/
export interface AuthApiContext<TUser = unknown, TData extends AuthConnectionData<TUser> = AuthConnectionData<TUser>>
extends ApiContext<TData> {
/**
* @zh 当前连接(带认证)
* @en Current connection (with auth)
*/
conn: AuthConnection<TUser, TData>;
}
/**
* @zh 带认证的消息上下文
* @en Message context with authentication
*/
export interface AuthMsgContext<TUser = unknown, TData extends AuthConnectionData<TUser> = AuthConnectionData<TUser>>
extends MsgContext<TData> {
/**
* @zh 当前连接(带认证)
* @en Current connection (with auth)
*/
conn: AuthConnection<TUser, TData>;
}
// ============================================================================
// Auth Server Config
// ============================================================================
/**
* @zh 连接请求信息
* @en Connection request info
*/
export interface ConnectionRequest {
/**
* @zh 请求 URL
* @en Request URL
*/
url: string;
/**
* @zh 请求头
* @en Request headers
*/
headers: Record<string, string | string[] | undefined>;
/**
* @zh 客户端 IP
* @en Client IP
*/
ip: string;
}
/**
* @zh 认证服务器配置
* @en Authentication server configuration
*/
export interface AuthServerConfig<TUser = unknown> {
/**
* @zh 认证提供者
* @en Authentication provider
*/
provider: IAuthProvider<TUser>;
/**
* @zh 从连接请求提取凭证
* @en Extract credentials from connection request
*/
extractCredentials?: (req: ConnectionRequest) => unknown | Promise<unknown>;
/**
* @zh 连接时自动认证
* @en Auto authenticate on connection
* @defaultValue true
*/
autoAuthOnConnect?: boolean;
/**
* @zh 未认证连接的宽限期(毫秒)
* @en Grace period for unauthenticated connections (ms)
* @defaultValue 30000
*/
authGracePeriod?: number;
/**
* @zh 认证失败是否断开连接
* @en Disconnect on auth failure
* @defaultValue false
*/
disconnectOnAuthFailure?: boolean;
/**
* @zh 认证成功回调
* @en Authentication success callback
*/
onAuthSuccess?: (conn: ServerConnection, user: TUser) => void | Promise<void>;
/**
* @zh 认证失败回调
* @en Authentication failure callback
*/
onAuthFailure?: (conn: ServerConnection, error: AuthResult<TUser>) => void | Promise<void>;
}
// ============================================================================
// Auth Game Server
// ============================================================================
/**
* @zh 带认证的游戏服务器
* @en Game server with authentication
*/
export interface AuthGameServer<TUser = unknown> extends GameServer {
/**
* @zh 认证提供者
* @en Authentication provider
*/
readonly authProvider: IAuthProvider<TUser>;
/**
* @zh 手动认证连接
* @en Manually authenticate connection
*/
authenticate(
conn: ServerConnection,
credentials: unknown
): Promise<AuthResult<TUser>>;
/**
* @zh 获取连接的认证上下文
* @en Get auth context for connection
*/
getAuthContext(conn: ServerConnection): IAuthContext<TUser> | null;
}
// ============================================================================
// Auth Room Config
// ============================================================================
/**
* @zh 带认证的房间配置
* @en Auth room configuration
*/
export interface AuthRoomConfig {
/**
* @zh 是否要求认证才能加入
* @en Require authentication to join
* @defaultValue true
*/
requireAuth?: boolean;
/**
* @zh 允许的角色(空数组表示任意角色)
* @en Allowed roles (empty array means any role)
*/
allowedRoles?: string[];
/**
* @zh 角色检查模式
* @en Role check mode
* @defaultValue 'any'
*/
roleCheckMode?: 'any' | 'all';
}
// ============================================================================
// Decorator Options
// ============================================================================
/**
* @zh requireAuth 装饰器选项
* @en requireAuth decorator options
*/
export interface RequireAuthOptions {
/**
* @zh 认证失败时的错误消息
* @en Error message on auth failure
*/
errorMessage?: string;
/**
* @zh 是否允许访客
* @en Allow guest access
*/
allowGuest?: boolean;
}
/**
* @zh requireRole 装饰器选项
* @en requireRole decorator options
*/
export interface RequireRoleOptions extends RequireAuthOptions {
/**
* @zh 角色检查模式
* @en Role check mode
* @defaultValue 'any'
*/
mode?: 'any' | 'all';
}

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import { describe, it, expect, beforeEach } from 'vitest';
import { RateLimitContext } from '../context';
import { TokenBucketStrategy } from '../strategies/TokenBucket';
import { FixedWindowStrategy } from '../strategies/FixedWindow';
describe('RateLimitContext', () => {
let globalStrategy: TokenBucketStrategy;
let context: RateLimitContext;
beforeEach(() => {
globalStrategy = new TokenBucketStrategy({
rate: 10,
capacity: 20
});
context = new RateLimitContext('player-123', globalStrategy);
});
describe('check', () => {
it('should check without consuming', () => {
const result1 = context.check();
const result2 = context.check();
expect(result1.remaining).toBe(result2.remaining);
});
it('should use global strategy by default', () => {
const result = context.check();
expect(result.allowed).toBe(true);
expect(result.remaining).toBe(20);
});
});
describe('consume', () => {
it('should consume from global strategy', () => {
const result = context.consume();
expect(result.allowed).toBe(true);
expect(result.remaining).toBe(19);
});
it('should track consecutive limits', () => {
for (let i = 0; i < 25; i++) {
context.consume();
}
expect(context.consecutiveLimitCount).toBeGreaterThan(0);
});
it('should reset consecutive count on success', () => {
// Consume all 20 tokens plus some more to trigger rate limiting
for (let i = 0; i < 25; i++) {
context.consume();
}
// After consuming 25 tokens (20 capacity), 5 should be rate limited
expect(context.consecutiveLimitCount).toBeGreaterThan(0);
context.reset();
const result = context.consume();
expect(result.allowed).toBe(true);
expect(context.consecutiveLimitCount).toBe(0);
});
});
describe('reset', () => {
it('should reset global strategy', () => {
for (let i = 0; i < 15; i++) {
context.consume();
}
context.reset();
const status = context.check();
expect(status.remaining).toBe(20);
});
it('should reset specific message type', () => {
const msgStrategy = new FixedWindowStrategy({ rate: 5, capacity: 5 });
context.setMessageStrategy('Trade', msgStrategy);
for (let i = 0; i < 5; i++) {
context.consume('Trade');
}
context.reset('Trade');
const status = context.check('Trade');
expect(status.remaining).toBe(5);
});
});
describe('message strategies', () => {
it('should use message-specific strategy', () => {
const tradeStrategy = new FixedWindowStrategy({ rate: 1, capacity: 1 });
context.setMessageStrategy('Trade', tradeStrategy);
const result1 = context.consume('Trade');
expect(result1.allowed).toBe(true);
const result2 = context.consume('Trade');
expect(result2.allowed).toBe(false);
});
it('should fall back to global strategy for unknown types', () => {
const result = context.consume('UnknownType');
expect(result.allowed).toBe(true);
expect(result.remaining).toBe(19);
});
it('should check if message strategy exists', () => {
expect(context.hasMessageStrategy('Trade')).toBe(false);
const tradeStrategy = new FixedWindowStrategy({ rate: 1, capacity: 1 });
context.setMessageStrategy('Trade', tradeStrategy);
expect(context.hasMessageStrategy('Trade')).toBe(true);
});
it('should remove message strategy', () => {
const tradeStrategy = new FixedWindowStrategy({ rate: 1, capacity: 1 });
context.setMessageStrategy('Trade', tradeStrategy);
context.removeMessageStrategy('Trade');
expect(context.hasMessageStrategy('Trade')).toBe(false);
});
});
describe('resetConsecutiveCount', () => {
it('should reset consecutive limit count', () => {
for (let i = 0; i < 25; i++) {
context.consume();
}
expect(context.consecutiveLimitCount).toBeGreaterThan(0);
context.resetConsecutiveCount();
expect(context.consecutiveLimitCount).toBe(0);
});
});
});

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import { describe, it, expect, beforeEach } from 'vitest';
import {
rateLimit,
noRateLimit,
rateLimitMessage,
noRateLimitMessage,
getRateLimitMetadata,
RATE_LIMIT_METADATA_KEY
} from '../decorators/rateLimit';
describe('rateLimitMessage decorator', () => {
class TestClass {
@rateLimitMessage('Trade', { messagesPerSecond: 1, burstSize: 2 })
handleTrade() {
return 'trade';
}
@rateLimitMessage('Move', { cost: 2 })
handleMove() {
return 'move';
}
undecorated() {
return 'undecorated';
}
}
describe('metadata storage', () => {
it('should store rate limit metadata on target', () => {
const metadata = getRateLimitMetadata(TestClass.prototype, 'Trade');
expect(metadata).toBeDefined();
expect(metadata?.enabled).toBe(true);
});
it('should store config in metadata', () => {
const metadata = getRateLimitMetadata(TestClass.prototype, 'Trade');
expect(metadata?.config?.messagesPerSecond).toBe(1);
expect(metadata?.config?.burstSize).toBe(2);
});
it('should store cost in metadata', () => {
const metadata = getRateLimitMetadata(TestClass.prototype, 'Move');
expect(metadata?.config?.cost).toBe(2);
});
it('should return undefined for unregistered message types', () => {
const metadata = getRateLimitMetadata(TestClass.prototype, 'Unknown');
expect(metadata).toBeUndefined();
});
});
describe('method behavior', () => {
it('should not alter method behavior', () => {
const instance = new TestClass();
expect(instance.handleTrade()).toBe('trade');
expect(instance.handleMove()).toBe('move');
});
});
});
describe('noRateLimitMessage decorator', () => {
class TestClass {
@noRateLimitMessage('Heartbeat')
handleHeartbeat() {
return 'heartbeat';
}
@noRateLimitMessage('Ping')
handlePing() {
return 'ping';
}
}
describe('metadata storage', () => {
it('should mark message as exempt', () => {
const metadata = getRateLimitMetadata(TestClass.prototype, 'Heartbeat');
expect(metadata?.exempt).toBe(true);
expect(metadata?.enabled).toBe(false);
});
it('should store for multiple messages', () => {
const heartbeatMeta = getRateLimitMetadata(TestClass.prototype, 'Heartbeat');
const pingMeta = getRateLimitMetadata(TestClass.prototype, 'Ping');
expect(heartbeatMeta?.exempt).toBe(true);
expect(pingMeta?.exempt).toBe(true);
});
});
describe('method behavior', () => {
it('should not alter method behavior', () => {
const instance = new TestClass();
expect(instance.handleHeartbeat()).toBe('heartbeat');
expect(instance.handlePing()).toBe('ping');
});
});
});
describe('combined decorators', () => {
class CombinedTestClass {
@rateLimitMessage('SlowAction', { messagesPerSecond: 1 })
handleSlow() {
return 'slow';
}
@noRateLimitMessage('FastAction')
handleFast() {
return 'fast';
}
@rateLimitMessage('ExpensiveAction', { cost: 10 })
handleExpensive() {
return 'expensive';
}
}
it('should handle multiple different decorators', () => {
const slowMeta = getRateLimitMetadata(CombinedTestClass.prototype, 'SlowAction');
const fastMeta = getRateLimitMetadata(CombinedTestClass.prototype, 'FastAction');
const expensiveMeta = getRateLimitMetadata(CombinedTestClass.prototype, 'ExpensiveAction');
expect(slowMeta?.enabled).toBe(true);
expect(slowMeta?.config?.messagesPerSecond).toBe(1);
expect(fastMeta?.exempt).toBe(true);
expect(fastMeta?.enabled).toBe(false);
expect(expensiveMeta?.enabled).toBe(true);
expect(expensiveMeta?.config?.cost).toBe(10);
});
});
describe('RATE_LIMIT_METADATA_KEY', () => {
it('should be a symbol', () => {
expect(typeof RATE_LIMIT_METADATA_KEY).toBe('symbol');
});
it('should be used for metadata storage', () => {
class TestClass {
@rateLimitMessage('Test', {})
handleTest() {}
}
const metadataMap = (TestClass.prototype as any)[RATE_LIMIT_METADATA_KEY];
expect(metadataMap).toBeInstanceOf(Map);
});
});
describe('rateLimit decorator (auto-detect)', () => {
it('should be a decorator function', () => {
expect(typeof rateLimit).toBe('function');
expect(typeof rateLimit()).toBe('function');
});
it('should accept config', () => {
class TestClass {
@rateLimit({ messagesPerSecond: 5 })
someMethod() {
return 'test';
}
}
const instance = new TestClass();
expect(instance.someMethod()).toBe('test');
});
});
describe('noRateLimit decorator (auto-detect)', () => {
it('should be a decorator function', () => {
expect(typeof noRateLimit).toBe('function');
expect(typeof noRateLimit()).toBe('function');
});
it('should work as decorator', () => {
class TestClass {
@noRateLimit()
someMethod() {
return 'test';
}
}
const instance = new TestClass();
expect(instance.someMethod()).toBe('test');
});
});

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import { describe, it, expect, beforeEach, vi } from 'vitest';
import { Room } from '../../room/Room';
import { Player } from '../../room/Player';
import { withRateLimit, getPlayerRateLimitContext } from '../mixin/withRateLimit';
import { noRateLimitMessage, rateLimitMessage } from '../decorators/rateLimit';
import { onMessage } from '../../room/decorators';
describe('withRateLimit mixin', () => {
let RateLimitedRoom: ReturnType<typeof withRateLimit>;
beforeEach(() => {
RateLimitedRoom = withRateLimit(Room, {
messagesPerSecond: 10,
burstSize: 20
});
});
describe('basic functionality', () => {
it('should create a rate limited room class', () => {
expect(RateLimitedRoom).toBeDefined();
});
it('should have rateLimitStrategy property', () => {
class TestRoom extends RateLimitedRoom {
onCreate() {}
}
const room = new TestRoom();
expect(room.rateLimitStrategy).toBeDefined();
expect(room.rateLimitStrategy.name).toBe('token-bucket');
});
});
describe('strategy selection', () => {
it('should use token-bucket by default', () => {
class TestRoom extends withRateLimit(Room) {
onCreate() {}
}
const room = new TestRoom();
expect(room.rateLimitStrategy.name).toBe('token-bucket');
});
it('should use sliding-window when specified', () => {
class TestRoom extends withRateLimit(Room, { strategy: 'sliding-window' }) {
onCreate() {}
}
const room = new TestRoom();
expect(room.rateLimitStrategy.name).toBe('sliding-window');
});
it('should use fixed-window when specified', () => {
class TestRoom extends withRateLimit(Room, { strategy: 'fixed-window' }) {
onCreate() {}
}
const room = new TestRoom();
expect(room.rateLimitStrategy.name).toBe('fixed-window');
});
});
describe('configuration', () => {
it('should use default values', () => {
class TestRoom extends withRateLimit(Room) {
onCreate() {}
}
const room = new TestRoom();
expect(room.rateLimitStrategy).toBeDefined();
});
it('should accept custom messagesPerSecond', () => {
class TestRoom extends withRateLimit(Room, { messagesPerSecond: 5 }) {
onCreate() {}
}
const room = new TestRoom();
expect(room.rateLimitStrategy).toBeDefined();
});
it('should accept custom burstSize', () => {
class TestRoom extends withRateLimit(Room, { burstSize: 50 }) {
onCreate() {}
}
const room = new TestRoom();
expect(room.rateLimitStrategy).toBeDefined();
});
});
describe('dispose', () => {
it('should clean up on dispose', () => {
class TestRoom extends RateLimitedRoom {
onCreate() {}
}
const room = new TestRoom();
room._init({
id: 'test-room',
sendFn: vi.fn(),
broadcastFn: vi.fn(),
disposeFn: vi.fn()
});
expect(() => room.dispose()).not.toThrow();
});
});
});
describe('withRateLimit with auth', () => {
it('should be composable with other mixins', () => {
class TestRoom extends withRateLimit(Room, { messagesPerSecond: 10 }) {
onCreate() {}
}
const room = new TestRoom();
expect(room.rateLimitStrategy).toBeDefined();
});
});
describe('getPlayerRateLimitContext', () => {
it('should return null for player without context', () => {
const mockPlayer = {
id: 'player-1',
roomId: 'room-1',
data: {},
send: vi.fn(),
leave: vi.fn()
} as unknown as Player;
const context = getPlayerRateLimitContext(mockPlayer);
expect(context).toBeNull();
});
});
describe('decorator metadata', () => {
it('rateLimitMessage should set metadata', () => {
class TestRoom extends withRateLimit(Room) {
@rateLimitMessage('Trade', { messagesPerSecond: 1 })
@onMessage('Trade')
handleTrade() {}
}
expect(TestRoom).toBeDefined();
});
it('noRateLimitMessage should set exempt metadata', () => {
class TestRoom extends withRateLimit(Room) {
@noRateLimitMessage('Heartbeat')
@onMessage('Heartbeat')
handleHeartbeat() {}
}
expect(TestRoom).toBeDefined();
});
});

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import { describe, it, expect, beforeEach, vi, afterEach } from 'vitest';
import { TokenBucketStrategy, createTokenBucketStrategy } from '../strategies/TokenBucket';
import { SlidingWindowStrategy, createSlidingWindowStrategy } from '../strategies/SlidingWindow';
import { FixedWindowStrategy, createFixedWindowStrategy } from '../strategies/FixedWindow';
describe('TokenBucketStrategy', () => {
let strategy: TokenBucketStrategy;
beforeEach(() => {
strategy = createTokenBucketStrategy({
rate: 10,
capacity: 20
});
});
describe('consume', () => {
it('should allow requests when tokens available', () => {
const result = strategy.consume('user-1');
expect(result.allowed).toBe(true);
expect(result.remaining).toBe(19);
});
it('should consume multiple tokens', () => {
const result = strategy.consume('user-1', 5);
expect(result.allowed).toBe(true);
expect(result.remaining).toBe(15);
});
it('should deny when not enough tokens', () => {
for (let i = 0; i < 20; i++) {
strategy.consume('user-1');
}
const result = strategy.consume('user-1');
expect(result.allowed).toBe(false);
expect(result.remaining).toBe(0);
expect(result.retryAfter).toBeGreaterThan(0);
});
it('should refill tokens over time', async () => {
for (let i = 0; i < 20; i++) {
strategy.consume('user-1');
}
await new Promise(resolve => setTimeout(resolve, 150));
const result = strategy.consume('user-1');
expect(result.allowed).toBe(true);
});
it('should handle different keys independently', () => {
for (let i = 0; i < 20; i++) {
strategy.consume('user-1');
}
const result1 = strategy.consume('user-1');
const result2 = strategy.consume('user-2');
expect(result1.allowed).toBe(false);
expect(result2.allowed).toBe(true);
});
});
describe('getStatus', () => {
it('should return full capacity for new key', () => {
const status = strategy.getStatus('new-user');
expect(status.remaining).toBe(20);
expect(status.allowed).toBe(true);
});
it('should not consume tokens', () => {
strategy.getStatus('user-1');
const status = strategy.getStatus('user-1');
expect(status.remaining).toBe(20);
});
});
describe('reset', () => {
it('should reset key to full capacity', () => {
for (let i = 0; i < 15; i++) {
strategy.consume('user-1');
}
strategy.reset('user-1');
const status = strategy.getStatus('user-1');
expect(status.remaining).toBe(20);
});
});
describe('cleanup', () => {
it('should clean up full buckets', async () => {
strategy.consume('user-1');
await new Promise(resolve => setTimeout(resolve, 100));
strategy.cleanup();
});
});
});
describe('SlidingWindowStrategy', () => {
let strategy: SlidingWindowStrategy;
beforeEach(() => {
strategy = createSlidingWindowStrategy({
rate: 10,
capacity: 10
});
});
describe('consume', () => {
it('should allow requests within capacity', () => {
const result = strategy.consume('user-1');
expect(result.allowed).toBe(true);
expect(result.remaining).toBe(9);
});
it('should deny when capacity exceeded', () => {
for (let i = 0; i < 10; i++) {
strategy.consume('user-1');
}
const result = strategy.consume('user-1');
expect(result.allowed).toBe(false);
expect(result.remaining).toBe(0);
});
it('should allow after window expires', async () => {
for (let i = 0; i < 10; i++) {
strategy.consume('user-1');
}
await new Promise(resolve => setTimeout(resolve, 1100));
const result = strategy.consume('user-1');
expect(result.allowed).toBe(true);
});
});
describe('getStatus', () => {
it('should return full capacity for new key', () => {
const status = strategy.getStatus('new-user');
expect(status.remaining).toBe(10);
expect(status.allowed).toBe(true);
});
});
describe('reset', () => {
it('should clear timestamps', () => {
for (let i = 0; i < 5; i++) {
strategy.consume('user-1');
}
strategy.reset('user-1');
const status = strategy.getStatus('user-1');
expect(status.remaining).toBe(10);
});
});
});
describe('FixedWindowStrategy', () => {
let strategy: FixedWindowStrategy;
beforeEach(() => {
strategy = createFixedWindowStrategy({
rate: 10,
capacity: 10
});
});
describe('consume', () => {
it('should allow requests within capacity', () => {
const result = strategy.consume('user-1');
expect(result.allowed).toBe(true);
expect(result.remaining).toBe(9);
});
it('should deny when capacity exceeded', () => {
for (let i = 0; i < 10; i++) {
strategy.consume('user-1');
}
const result = strategy.consume('user-1');
expect(result.allowed).toBe(false);
expect(result.retryAfter).toBeGreaterThanOrEqual(0);
});
it('should reset at window boundary', async () => {
for (let i = 0; i < 10; i++) {
strategy.consume('user-1');
}
await new Promise(resolve => setTimeout(resolve, 1100));
const result = strategy.consume('user-1');
expect(result.allowed).toBe(true);
expect(result.remaining).toBe(9);
});
});
describe('getStatus', () => {
it('should return full capacity for new key', () => {
const status = strategy.getStatus('new-user');
expect(status.remaining).toBe(10);
});
});
describe('reset', () => {
it('should reset count', () => {
for (let i = 0; i < 5; i++) {
strategy.consume('user-1');
}
strategy.reset('user-1');
const status = strategy.getStatus('user-1');
expect(status.remaining).toBe(10);
});
});
describe('cleanup', () => {
it('should clean up old windows', async () => {
strategy.consume('user-1');
await new Promise(resolve => setTimeout(resolve, 2100));
strategy.cleanup();
});
});
});
describe('Factory functions', () => {
it('createTokenBucketStrategy should create TokenBucketStrategy', () => {
const strategy = createTokenBucketStrategy({ rate: 5, capacity: 10 });
expect(strategy.name).toBe('token-bucket');
});
it('createSlidingWindowStrategy should create SlidingWindowStrategy', () => {
const strategy = createSlidingWindowStrategy({ rate: 5, capacity: 5 });
expect(strategy.name).toBe('sliding-window');
});
it('createFixedWindowStrategy should create FixedWindowStrategy', () => {
const strategy = createFixedWindowStrategy({ rate: 5, capacity: 5 });
expect(strategy.name).toBe('fixed-window');
});
});

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/**
* @zh 速率限制上下文
* @en Rate limit context
*/
import type {
IRateLimitContext,
IRateLimitStrategy,
RateLimitResult,
MessageRateLimitConfig
} from './types.js';
/**
* @zh 速率限制上下文
* @en Rate limit context
*
* @zh 管理单个玩家的速率限制状态,支持全局限制和按消息类型限制
* @en Manages rate limit status for a single player, supports global and per-message-type limits
*
* @example
* ```typescript
* const context = new RateLimitContext('player-123', globalStrategy);
*
* // Check global rate limit
* const result = context.consume();
*
* // Check per-message rate limit
* const tradeResult = context.consume('Trade', 1);
* ```
*/
export class RateLimitContext implements IRateLimitContext {
private _key: string;
private _globalStrategy: IRateLimitStrategy;
private _messageStrategies: Map<string, IRateLimitStrategy> = new Map();
private _consecutiveLimitCount: number = 0;
/**
* @zh 创建速率限制上下文
* @en Create rate limit context
*
* @param key - @zh 限流键通常是玩家ID@en Rate limit key (usually player ID)
* @param globalStrategy - @zh 全局限流策略 @en Global rate limit strategy
*/
constructor(key: string, globalStrategy: IRateLimitStrategy) {
this._key = key;
this._globalStrategy = globalStrategy;
}
/**
* @zh 获取连续被限流次数
* @en Get consecutive limit count
*/
get consecutiveLimitCount(): number {
return this._consecutiveLimitCount;
}
/**
* @zh 检查是否允许(不消费)
* @en Check if allowed (without consuming)
*/
check(messageType?: string): RateLimitResult {
if (messageType && this._messageStrategies.has(messageType)) {
return this._messageStrategies.get(messageType)!.getStatus(this._key);
}
return this._globalStrategy.getStatus(this._key);
}
/**
* @zh 消费配额
* @en Consume quota
*/
consume(messageType?: string, cost: number = 1): RateLimitResult {
let result: RateLimitResult;
if (messageType && this._messageStrategies.has(messageType)) {
result = this._messageStrategies.get(messageType)!.consume(this._key, cost);
} else {
result = this._globalStrategy.consume(this._key, cost);
}
if (result.allowed) {
this._consecutiveLimitCount = 0;
} else {
this._consecutiveLimitCount++;
}
return result;
}
/**
* @zh 重置限流状态
* @en Reset rate limit status
*/
reset(messageType?: string): void {
if (messageType) {
if (this._messageStrategies.has(messageType)) {
this._messageStrategies.get(messageType)!.reset(this._key);
}
} else {
this._globalStrategy.reset(this._key);
for (const strategy of this._messageStrategies.values()) {
strategy.reset(this._key);
}
}
}
/**
* @zh 重置连续限流计数
* @en Reset consecutive limit count
*/
resetConsecutiveCount(): void {
this._consecutiveLimitCount = 0;
}
/**
* @zh 为特定消息类型设置独立的限流策略
* @en Set independent rate limit strategy for specific message type
*
* @param messageType - @zh 消息类型 @en Message type
* @param strategy - @zh 限流策略 @en Rate limit strategy
*/
setMessageStrategy(messageType: string, strategy: IRateLimitStrategy): void {
this._messageStrategies.set(messageType, strategy);
}
/**
* @zh 移除特定消息类型的限流策略
* @en Remove rate limit strategy for specific message type
*
* @param messageType - @zh 消息类型 @en Message type
*/
removeMessageStrategy(messageType: string): void {
this._messageStrategies.delete(messageType);
}
/**
* @zh 检查是否有特定消息类型的限流策略
* @en Check if has rate limit strategy for specific message type
*
* @param messageType - @zh 消息类型 @en Message type
*/
hasMessageStrategy(messageType: string): boolean {
return this._messageStrategies.has(messageType);
}
}

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/**
* @zh 速率限制装饰器
* @en Rate limit decorators
*/
export {
rateLimit,
noRateLimit,
rateLimitMessage,
noRateLimitMessage,
getRateLimitMetadata,
RATE_LIMIT_METADATA_KEY
} from './rateLimit.js';

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/**
* @zh 速率限制装饰器
* @en Rate limit decorators
*/
import type { MessageRateLimitConfig, RateLimitMetadata } from '../types.js';
/**
* @zh 速率限制元数据存储键
* @en Rate limit metadata storage key
*/
export const RATE_LIMIT_METADATA_KEY = Symbol('rateLimitMetadata');
/**
* @zh 获取速率限制元数据
* @en Get rate limit metadata
*
* @param target - @zh 目标对象 @en Target object
* @param messageType - @zh 消息类型 @en Message type
* @returns @zh 元数据 @en Metadata
*/
export function getRateLimitMetadata(target: any, messageType: string): RateLimitMetadata | undefined {
const metadataMap = target[RATE_LIMIT_METADATA_KEY] as Map<string, RateLimitMetadata> | undefined;
return metadataMap?.get(messageType);
}
/**
* @zh 设置速率限制元数据
* @en Set rate limit metadata
*
* @param target - @zh 目标对象 @en Target object
* @param messageType - @zh 消息类型 @en Message type
* @param metadata - @zh 元数据 @en Metadata
*/
function setRateLimitMetadata(target: any, messageType: string, metadata: RateLimitMetadata): void {
if (!target[RATE_LIMIT_METADATA_KEY]) {
target[RATE_LIMIT_METADATA_KEY] = new Map<string, RateLimitMetadata>();
}
const metadataMap = target[RATE_LIMIT_METADATA_KEY] as Map<string, RateLimitMetadata>;
const existing = metadataMap.get(messageType) ?? { enabled: true };
metadataMap.set(messageType, { ...existing, ...metadata });
}
/**
* @zh 从方法获取消息类型
* @en Get message type from method
*
* @zh 通过查找 onMessage 装饰器设置的元数据来获取消息类型
* @en Gets message type by looking up metadata set by onMessage decorator
*/
function getMessageTypeFromMethod(target: any, methodName: string): string | undefined {
const messageHandlers = Symbol.for('messageHandlers');
for (const sym of Object.getOwnPropertySymbols(target.constructor)) {
const desc = Object.getOwnPropertyDescriptor(target.constructor, sym);
if (desc?.value && Array.isArray(desc.value)) {
for (const handler of desc.value) {
if (handler.method === methodName) {
return handler.type;
}
}
}
}
const handlers = target.constructor[Symbol.for('messageHandlers')] as { type: string; method: string }[] | undefined;
if (handlers) {
for (const handler of handlers) {
if (handler.method === methodName) {
return handler.type;
}
}
}
return undefined;
}
/**
* @zh 速率限制装饰器
* @en Rate limit decorator
*
* @zh 为消息处理器设置独立的速率限制配置
* @en Set independent rate limit configuration for message handler
*
* @example
* ```typescript
* class GameRoom extends withRateLimit(Room) {
* @rateLimit({ messagesPerSecond: 1, burstSize: 2 })
* @onMessage('Trade')
* handleTrade(data: TradeData, player: Player) {
* // This message has stricter rate limit
* }
*
* @rateLimit({ cost: 5 })
* @onMessage('ExpensiveAction')
* handleExpensiveAction(data: any, player: Player) {
* // This message consumes 5 tokens
* }
* }
* ```
*/
export function rateLimit(config?: MessageRateLimitConfig): MethodDecorator {
return function (
target: Object,
propertyKey: string | symbol,
descriptor: PropertyDescriptor
): PropertyDescriptor {
const methodName = String(propertyKey);
queueMicrotask(() => {
const msgType = getMessageTypeFromMethod(target, methodName);
if (msgType) {
setRateLimitMetadata(target, msgType, {
enabled: true,
config
});
}
});
const metadata: RateLimitMetadata = {
enabled: true,
config
};
if (!target.hasOwnProperty(RATE_LIMIT_METADATA_KEY)) {
Object.defineProperty(target, RATE_LIMIT_METADATA_KEY, {
value: new Map<string, RateLimitMetadata>(),
writable: false,
enumerable: false
});
}
return descriptor;
};
}
/**
* @zh 豁免速率限制装饰器
* @en Exempt from rate limit decorator
*
* @zh 标记消息处理器不受速率限制
* @en Mark message handler as exempt from rate limit
*
* @example
* ```typescript
* class GameRoom extends withRateLimit(Room) {
* @noRateLimit()
* @onMessage('Heartbeat')
* handleHeartbeat(data: any, player: Player) {
* // This message is not rate limited
* }
*
* @noRateLimit()
* @onMessage('Ping')
* handlePing(data: any, player: Player) {
* player.send('Pong', {});
* }
* }
* ```
*/
export function noRateLimit(): MethodDecorator {
return function (
target: Object,
propertyKey: string | symbol,
descriptor: PropertyDescriptor
): PropertyDescriptor {
const methodName = String(propertyKey);
queueMicrotask(() => {
const msgType = getMessageTypeFromMethod(target, methodName);
if (msgType) {
setRateLimitMetadata(target, msgType, {
enabled: false,
exempt: true
});
}
});
return descriptor;
};
}
/**
* @zh 速率限制消息装饰器(直接指定消息类型)
* @en Rate limit message decorator (directly specify message type)
*
* @zh 当无法自动获取消息类型时使用此装饰器
* @en Use this decorator when message type cannot be obtained automatically
*
* @example
* ```typescript
* class GameRoom extends withRateLimit(Room) {
* @rateLimitMessage('Trade', { messagesPerSecond: 1 })
* @onMessage('Trade')
* handleTrade(data: TradeData, player: Player) {
* // Explicitly rate limited
* }
* }
* ```
*/
export function rateLimitMessage(
messageType: string,
config?: MessageRateLimitConfig
): MethodDecorator {
return function (
target: Object,
propertyKey: string | symbol,
descriptor: PropertyDescriptor
): PropertyDescriptor {
setRateLimitMetadata(target, messageType, {
enabled: true,
config
});
return descriptor;
};
}
/**
* @zh 豁免速率限制消息装饰器(直接指定消息类型)
* @en Exempt rate limit message decorator (directly specify message type)
*
* @example
* ```typescript
* class GameRoom extends withRateLimit(Room) {
* @noRateLimitMessage('Heartbeat')
* @onMessage('Heartbeat')
* handleHeartbeat(data: any, player: Player) {
* // Explicitly exempted
* }
* }
* ```
*/
export function noRateLimitMessage(messageType: string): MethodDecorator {
return function (
target: Object,
propertyKey: string | symbol,
descriptor: PropertyDescriptor
): PropertyDescriptor {
setRateLimitMetadata(target, messageType, {
enabled: false,
exempt: true
});
return descriptor;
};
}

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/**
* @zh 速率限制模块
* @en Rate limit module
*
* @zh 提供可插拔的速率限制系统,支持多种限流算法
* @en Provides pluggable rate limit system with multiple algorithms
*
* @example
* ```typescript
* import { Room, onMessage } from '@esengine/server';
* import {
* withRateLimit,
* rateLimit,
* noRateLimit
* } from '@esengine/server/ratelimit';
*
* class GameRoom extends withRateLimit(Room, {
* messagesPerSecond: 10,
* burstSize: 20,
* strategy: 'token-bucket',
* onLimited: (player, type, result) => {
* player.send('Error', {
* code: 'RATE_LIMITED',
* retryAfter: result.retryAfter
* });
* }
* }) {
* @onMessage('Move')
* handleMove(data: { x: number, y: number }, player: Player) {
* // Protected by default rate limit
* }
*
* @rateLimit({ messagesPerSecond: 1 })
* @onMessage('Trade')
* handleTrade(data: TradeData, player: Player) {
* // Stricter rate limit for trading
* }
*
* @noRateLimit()
* @onMessage('Heartbeat')
* handleHeartbeat(data: any, player: Player) {
* // No rate limit for heartbeat
* }
* }
* ```
*/
// Types
export type {
RateLimitResult,
IRateLimitStrategy,
RateLimitStrategyType,
RateLimitConfig,
MessageRateLimitConfig,
RateLimitMetadata,
IRateLimitContext,
RateLimitedRoom,
StrategyConfig
} from './types.js';
// Strategies
export {
TokenBucketStrategy,
createTokenBucketStrategy,
SlidingWindowStrategy,
createSlidingWindowStrategy,
FixedWindowStrategy,
createFixedWindowStrategy
} from './strategies/index.js';
// Context
export { RateLimitContext } from './context.js';
// Mixin
export {
withRateLimit,
getPlayerRateLimitContext,
type RateLimitedPlayer,
type IRateLimitRoom,
type RateLimitRoomClass
} from './mixin/index.js';
// Decorators
export {
rateLimit,
noRateLimit,
rateLimitMessage,
noRateLimitMessage,
getRateLimitMetadata,
RATE_LIMIT_METADATA_KEY
} from './decorators/index.js';

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/**
* @zh 速率限制 Mixin
* @en Rate limit mixin
*/
export {
withRateLimit,
getPlayerRateLimitContext,
type RateLimitedPlayer,
type IRateLimitRoom,
type RateLimitRoomClass
} from './withRateLimit.js';

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/**
* @zh 房间速率限制 Mixin
* @en Room rate limit mixin
*/
import type { Player, Room } from '../../room/index.js';
import { RateLimitContext } from '../context.js';
import { getRateLimitMetadata, RATE_LIMIT_METADATA_KEY } from '../decorators/rateLimit.js';
import { FixedWindowStrategy } from '../strategies/FixedWindow.js';
import { SlidingWindowStrategy } from '../strategies/SlidingWindow.js';
import { TokenBucketStrategy } from '../strategies/TokenBucket.js';
import type {
IRateLimitContext,
IRateLimitStrategy,
RateLimitConfig,
RateLimitMetadata,
RateLimitResult
} from '../types.js';
/**
* @zh 玩家速率限制上下文存储
* @en Player rate limit context storage
*/
const PLAYER_RATE_LIMIT_CONTEXT = Symbol('playerRateLimitContext');
/**
* @zh 带速率限制的玩家
* @en Player with rate limit
*/
export interface RateLimitedPlayer<TData = Record<string, unknown>> extends Player<TData> {
/**
* @zh 速率限制上下文
* @en Rate limit context
*/
readonly rateLimit: IRateLimitContext;
}
/**
* @zh 带速率限制的房间接口
* @en Room with rate limit interface
*/
export interface IRateLimitRoom {
/**
* @zh 获取玩家的速率限制上下文
* @en Get rate limit context for player
*/
getRateLimitContext(player: Player): IRateLimitContext | null;
/**
* @zh 全局速率限制策略
* @en Global rate limit strategy
*/
readonly rateLimitStrategy: IRateLimitStrategy;
/**
* @zh 速率限制钩子(被限流时调用)
* @en Rate limit hook (called when rate limited)
*/
onRateLimited?(player: Player, messageType: string, result: RateLimitResult): void;
}
/**
* @zh 速率限制房间构造器类型
* @en Rate limit room constructor type
*/
export type RateLimitRoomClass = new (...args: any[]) => Room & IRateLimitRoom;
/**
* @zh 创建策略实例
* @en Create strategy instance
*/
function createStrategy(config: RateLimitConfig): IRateLimitStrategy {
const rate = config.messagesPerSecond ?? 10;
const capacity = config.burstSize ?? rate * 2;
switch (config.strategy) {
case 'sliding-window':
return new SlidingWindowStrategy({ rate, capacity });
case 'fixed-window':
return new FixedWindowStrategy({ rate, capacity });
case 'token-bucket':
default:
return new TokenBucketStrategy({ rate, capacity });
}
}
/**
* @zh 获取玩家的速率限制上下文
* @en Get rate limit context for player
*/
export function getPlayerRateLimitContext(player: Player): IRateLimitContext | null {
const data = player as unknown as Record<symbol, unknown>;
return (data[PLAYER_RATE_LIMIT_CONTEXT] as IRateLimitContext) ?? null;
}
/**
* @zh 设置玩家的速率限制上下文
* @en Set rate limit context for player
*/
function setPlayerRateLimitContext(player: Player, context: IRateLimitContext): void {
const data = player as unknown as Record<symbol, unknown>;
data[PLAYER_RATE_LIMIT_CONTEXT] = context;
Object.defineProperty(player, 'rateLimit', {
get: () => data[PLAYER_RATE_LIMIT_CONTEXT],
enumerable: true,
configurable: false
});
}
/**
* @zh 包装房间类添加速率限制功能
* @en Wrap room class with rate limit functionality
*
* @zh 使用 mixin 模式为房间添加速率限制,在消息处理前验证速率限制
* @en Uses mixin pattern to add rate limit to room, validates rate before processing messages
*
* @example
* ```typescript
* import { Room, onMessage } from '@esengine/server';
* import { withRateLimit } from '@esengine/server/ratelimit';
*
* class GameRoom extends withRateLimit(Room, {
* messagesPerSecond: 10,
* burstSize: 20,
* onLimited: (player, type, result) => {
* player.send('Error', {
* code: 'RATE_LIMITED',
* retryAfter: result.retryAfter
* });
* }
* }) {
* @onMessage('Move')
* handleMove(data: { x: number, y: number }, player: Player) {
* // Protected by rate limit
* }
* }
* ```
*
* @example
* // Combine with auth
* ```typescript
* class GameRoom extends withRateLimit(
* withRoomAuth(Room, { requireAuth: true }),
* { messagesPerSecond: 10 }
* ) {
* // Both auth and rate limit active
* }
* ```
*/
export function withRateLimit<TBase extends new (...args: any[]) => Room = new (...args: any[]) => Room>(
Base: TBase,
config: RateLimitConfig = {}
): TBase & (new (...args: any[]) => IRateLimitRoom) {
const {
messagesPerSecond = 10,
burstSize = 20,
strategy = 'token-bucket',
onLimited,
disconnectOnLimit = false,
maxConsecutiveLimits = 0,
getKey = (player: Player) => player.id,
cleanupInterval = 60000
} = config;
abstract class RateLimitRoom extends (Base as new (...args: any[]) => Room) implements IRateLimitRoom {
private _rateLimitStrategy: IRateLimitStrategy;
private _playerContexts: WeakMap<Player, RateLimitContext> = new WeakMap();
private _cleanupTimer: ReturnType<typeof setInterval> | null = null;
private _messageStrategies: Map<string, IRateLimitStrategy> = new Map();
constructor(...args: any[]) {
super(...args);
this._rateLimitStrategy = createStrategy({
messagesPerSecond,
burstSize,
strategy
});
this._startCleanup();
this._initMessageStrategies();
}
/**
* @zh 全局速率限制策略
* @en Global rate limit strategy
*/
get rateLimitStrategy(): IRateLimitStrategy {
return this._rateLimitStrategy;
}
/**
* @zh 速率限制钩子(可覆盖)
* @en Rate limit hook (can be overridden)
*/
onRateLimited?(player: Player, messageType: string, result: RateLimitResult): void;
/**
* @zh 获取玩家的速率限制上下文
* @en Get rate limit context for player
*/
getRateLimitContext(player: Player): IRateLimitContext | null {
return this._playerContexts.get(player) ?? null;
}
/**
* @internal
* @zh 重写消息处理以添加速率限制检查
* @en Override message handling to add rate limit check
*/
_handleMessage(type: string, data: unknown, playerId: string): void {
const player = this.getPlayer(playerId);
if (!player) return;
let context = this._playerContexts.get(player);
if (!context) {
context = this._createPlayerContext(player);
}
const metadata = this._getMessageMetadata(type);
if (metadata?.exempt) {
super._handleMessage(type, data, playerId);
return;
}
const cost = metadata?.config?.cost ?? 1;
let result: RateLimitResult;
if (metadata?.config && (metadata.config.messagesPerSecond || metadata.config.burstSize)) {
if (!context.hasMessageStrategy(type)) {
const msgStrategy = createStrategy({
messagesPerSecond: metadata.config.messagesPerSecond ?? messagesPerSecond,
burstSize: metadata.config.burstSize ?? burstSize,
strategy
});
context.setMessageStrategy(type, msgStrategy);
}
result = context.consume(type, cost);
} else {
result = context.consume(undefined, cost);
}
if (!result.allowed) {
this._handleRateLimited(player, type, result, context);
return;
}
super._handleMessage(type, data, playerId);
}
/**
* @internal
* @zh 重写 _addPlayer 以初始化速率限制上下文
* @en Override _addPlayer to initialize rate limit context
*/
async _addPlayer(id: string, conn: any): Promise<Player | null> {
const player = await super._addPlayer(id, conn);
if (player) {
this._createPlayerContext(player);
}
return player;
}
/**
* @internal
* @zh 重写 _removePlayer 以清理速率限制上下文
* @en Override _removePlayer to cleanup rate limit context
*/
async _removePlayer(id: string, reason?: string): Promise<void> {
const player = this.getPlayer(id);
if (player) {
const context = this._playerContexts.get(player);
if (context) {
context.reset();
}
this._playerContexts.delete(player);
}
await super._removePlayer(id, reason);
}
/**
* @zh 重写 dispose 以清理定时器
* @en Override dispose to cleanup timer
*/
dispose(): void {
this._stopCleanup();
super.dispose();
}
/**
* @zh 创建玩家的速率限制上下文
* @en Create rate limit context for player
*/
private _createPlayerContext(player: Player): RateLimitContext {
const key = getKey(player);
const context = new RateLimitContext(key, this._rateLimitStrategy);
this._playerContexts.set(player, context);
setPlayerRateLimitContext(player, context);
return context;
}
/**
* @zh 处理被限流的情况
* @en Handle rate limited situation
*/
private _handleRateLimited(
player: Player,
messageType: string,
result: RateLimitResult,
context: RateLimitContext
): void {
if (this.onRateLimited) {
this.onRateLimited(player, messageType, result);
}
onLimited?.(player, messageType, result);
if (disconnectOnLimit) {
this.kick(player as any, 'rate_limited');
return;
}
if (maxConsecutiveLimits > 0 && context.consecutiveLimitCount >= maxConsecutiveLimits) {
this.kick(player as any, 'too_many_rate_limits');
}
}
/**
* @zh 获取消息的元数据
* @en Get message metadata
*/
private _getMessageMetadata(type: string): RateLimitMetadata | undefined {
return getRateLimitMetadata(this.constructor.prototype, type);
}
/**
* @zh 初始化消息策略(从装饰器元数据)
* @en Initialize message strategies (from decorator metadata)
*/
private _initMessageStrategies(): void {
const metadataMap = (this.constructor.prototype as any)[RATE_LIMIT_METADATA_KEY];
if (metadataMap instanceof Map) {
for (const [msgType, metadata] of metadataMap) {
if (metadata.config && (metadata.config.messagesPerSecond || metadata.config.burstSize)) {
const msgStrategy = createStrategy({
messagesPerSecond: metadata.config.messagesPerSecond ?? messagesPerSecond,
burstSize: metadata.config.burstSize ?? burstSize,
strategy
});
this._messageStrategies.set(msgType, msgStrategy);
}
}
}
}
/**
* @zh 开始清理定时器
* @en Start cleanup timer
*/
private _startCleanup(): void {
if (cleanupInterval > 0) {
this._cleanupTimer = setInterval(() => {
this._rateLimitStrategy.cleanup();
for (const strategy of this._messageStrategies.values()) {
strategy.cleanup();
}
}, cleanupInterval);
}
}
/**
* @zh 停止清理定时器
* @en Stop cleanup timer
*/
private _stopCleanup(): void {
if (this._cleanupTimer) {
clearInterval(this._cleanupTimer);
this._cleanupTimer = null;
}
}
}
return RateLimitRoom as unknown as TBase & (new (...args: any[]) => IRateLimitRoom);
}

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/**
* @zh 固定窗口速率限制策略
* @en Fixed window rate limit strategy
*/
import type { IRateLimitStrategy, RateLimitResult, StrategyConfig } from '../types.js';
/**
* @zh 固定窗口状态
* @en Fixed window state
*/
interface WindowState {
/**
* @zh 当前窗口计数
* @en Current window count
*/
count: number;
/**
* @zh 窗口开始时间
* @en Window start time
*/
windowStart: number;
}
/**
* @zh 固定窗口速率限制策略
* @en Fixed window rate limit strategy
*
* @zh 固定窗口算法将时间划分为固定长度的窗口,在每个窗口内计数请求。
* 实现简单,内存开销小,但在窗口边界可能有两倍突发的问题。
* @en Fixed window algorithm divides time into fixed-length windows and counts requests in each window.
* Simple to implement with low memory overhead, but may have 2x burst issue at window boundaries.
*
* @example
* ```typescript
* const strategy = new FixedWindowStrategy({
* rate: 10, // 10 requests per second
* capacity: 10 // same as rate for 1-second window
* });
*
* const result = strategy.consume('player-123');
* if (result.allowed) {
* // Process message
* }
* ```
*/
export class FixedWindowStrategy implements IRateLimitStrategy {
readonly name = 'fixed-window';
private _rate: number;
private _capacity: number;
private _windowMs: number;
private _windows: Map<string, WindowState> = new Map();
/**
* @zh 创建固定窗口策略
* @en Create fixed window strategy
*
* @param config - @zh 配置 @en Configuration
* @param config.rate - @zh 每秒允许的请求数 @en Requests allowed per second
* @param config.capacity - @zh 窗口容量 @en Window capacity
*/
constructor(config: StrategyConfig) {
this._rate = config.rate;
this._capacity = config.capacity;
this._windowMs = 1000;
}
/**
* @zh 尝试消费配额
* @en Try to consume quota
*/
consume(key: string, cost: number = 1): RateLimitResult {
const now = Date.now();
const window = this._getOrCreateWindow(key, now);
this._maybeResetWindow(window, now);
if (window.count + cost <= this._capacity) {
window.count += cost;
return {
allowed: true,
remaining: this._capacity - window.count,
resetAt: window.windowStart + this._windowMs
};
}
const retryAfter = window.windowStart + this._windowMs - now;
return {
allowed: false,
remaining: 0,
resetAt: window.windowStart + this._windowMs,
retryAfter: Math.max(0, retryAfter)
};
}
/**
* @zh 获取当前状态
* @en Get current status
*/
getStatus(key: string): RateLimitResult {
const now = Date.now();
const window = this._windows.get(key);
if (!window) {
return {
allowed: true,
remaining: this._capacity,
resetAt: this._getWindowStart(now) + this._windowMs
};
}
this._maybeResetWindow(window, now);
const remaining = Math.max(0, this._capacity - window.count);
return {
allowed: remaining > 0,
remaining,
resetAt: window.windowStart + this._windowMs
};
}
/**
* @zh 重置指定键
* @en Reset specified key
*/
reset(key: string): void {
this._windows.delete(key);
}
/**
* @zh 清理所有过期记录
* @en Clean up all expired records
*/
cleanup(): void {
const now = Date.now();
const currentWindowStart = this._getWindowStart(now);
for (const [key, window] of this._windows) {
if (window.windowStart < currentWindowStart - this._windowMs) {
this._windows.delete(key);
}
}
}
/**
* @zh 获取或创建窗口
* @en Get or create window
*/
private _getOrCreateWindow(key: string, now: number): WindowState {
let window = this._windows.get(key);
if (!window) {
window = {
count: 0,
windowStart: this._getWindowStart(now)
};
this._windows.set(key, window);
}
return window;
}
/**
* @zh 如果需要则重置窗口
* @en Reset window if needed
*/
private _maybeResetWindow(window: WindowState, now: number): void {
const currentWindowStart = this._getWindowStart(now);
if (window.windowStart < currentWindowStart) {
window.count = 0;
window.windowStart = currentWindowStart;
}
}
/**
* @zh 获取窗口开始时间
* @en Get window start time
*/
private _getWindowStart(now: number): number {
return Math.floor(now / this._windowMs) * this._windowMs;
}
}
/**
* @zh 创建固定窗口策略
* @en Create fixed window strategy
*
* @example
* ```typescript
* const strategy = createFixedWindowStrategy({
* rate: 10,
* capacity: 10
* });
* ```
*/
export function createFixedWindowStrategy(config: StrategyConfig): FixedWindowStrategy {
return new FixedWindowStrategy(config);
}

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/**
* @zh 滑动窗口速率限制策略
* @en Sliding window rate limit strategy
*/
import type { IRateLimitStrategy, RateLimitResult, StrategyConfig } from '../types.js';
/**
* @zh 滑动窗口状态
* @en Sliding window state
*/
interface WindowState {
/**
* @zh 请求时间戳列表
* @en Request timestamp list
*/
timestamps: number[];
}
/**
* @zh 滑动窗口速率限制策略
* @en Sliding window rate limit strategy
*
* @zh 滑动窗口算法精确跟踪时间窗口内的请求数。
* 比固定窗口更精确,但内存开销稍大。
* @en Sliding window algorithm precisely tracks requests within a time window.
* More accurate than fixed window, but with slightly higher memory overhead.
*
* @example
* ```typescript
* const strategy = new SlidingWindowStrategy({
* rate: 10, // 10 requests per second
* capacity: 10 // window size (same as rate for 1-second window)
* });
*
* const result = strategy.consume('player-123');
* if (result.allowed) {
* // Process message
* }
* ```
*/
export class SlidingWindowStrategy implements IRateLimitStrategy {
readonly name = 'sliding-window';
private _rate: number;
private _capacity: number;
private _windowMs: number;
private _windows: Map<string, WindowState> = new Map();
/**
* @zh 创建滑动窗口策略
* @en Create sliding window strategy
*
* @param config - @zh 配置 @en Configuration
* @param config.rate - @zh 每秒允许的请求数 @en Requests allowed per second
* @param config.capacity - @zh 窗口容量 @en Window capacity
*/
constructor(config: StrategyConfig) {
this._rate = config.rate;
this._capacity = config.capacity;
this._windowMs = 1000;
}
/**
* @zh 尝试消费配额
* @en Try to consume quota
*/
consume(key: string, cost: number = 1): RateLimitResult {
const now = Date.now();
const window = this._getOrCreateWindow(key);
this._cleanExpiredTimestamps(window, now);
const currentCount = window.timestamps.length;
if (currentCount + cost <= this._capacity) {
for (let i = 0; i < cost; i++) {
window.timestamps.push(now);
}
return {
allowed: true,
remaining: this._capacity - window.timestamps.length,
resetAt: this._getResetAt(window, now)
};
}
const oldestTimestamp = window.timestamps[0] || now;
const retryAfter = Math.max(0, oldestTimestamp + this._windowMs - now);
return {
allowed: false,
remaining: 0,
resetAt: oldestTimestamp + this._windowMs,
retryAfter
};
}
/**
* @zh 获取当前状态
* @en Get current status
*/
getStatus(key: string): RateLimitResult {
const now = Date.now();
const window = this._windows.get(key);
if (!window) {
return {
allowed: true,
remaining: this._capacity,
resetAt: now + this._windowMs
};
}
this._cleanExpiredTimestamps(window, now);
const remaining = Math.max(0, this._capacity - window.timestamps.length);
return {
allowed: remaining > 0,
remaining,
resetAt: this._getResetAt(window, now)
};
}
/**
* @zh 重置指定键
* @en Reset specified key
*/
reset(key: string): void {
this._windows.delete(key);
}
/**
* @zh 清理所有过期记录
* @en Clean up all expired records
*/
cleanup(): void {
const now = Date.now();
for (const [key, window] of this._windows) {
this._cleanExpiredTimestamps(window, now);
if (window.timestamps.length === 0) {
this._windows.delete(key);
}
}
}
/**
* @zh 获取或创建窗口
* @en Get or create window
*/
private _getOrCreateWindow(key: string): WindowState {
let window = this._windows.get(key);
if (!window) {
window = { timestamps: [] };
this._windows.set(key, window);
}
return window;
}
/**
* @zh 清理过期的时间戳
* @en Clean expired timestamps
*/
private _cleanExpiredTimestamps(window: WindowState, now: number): void {
const cutoff = now - this._windowMs;
window.timestamps = window.timestamps.filter(ts => ts > cutoff);
}
/**
* @zh 获取重置时间
* @en Get reset time
*/
private _getResetAt(window: WindowState, now: number): number {
if (window.timestamps.length === 0) {
return now + this._windowMs;
}
return window.timestamps[0] + this._windowMs;
}
}
/**
* @zh 创建滑动窗口策略
* @en Create sliding window strategy
*
* @example
* ```typescript
* const strategy = createSlidingWindowStrategy({
* rate: 10,
* capacity: 10
* });
* ```
*/
export function createSlidingWindowStrategy(config: StrategyConfig): SlidingWindowStrategy {
return new SlidingWindowStrategy(config);
}

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/**
* @zh 令牌桶速率限制策略
* @en Token bucket rate limit strategy
*/
import type { IRateLimitStrategy, RateLimitResult, StrategyConfig } from '../types.js';
/**
* @zh 令牌桶状态
* @en Token bucket state
*/
interface BucketState {
/**
* @zh 当前令牌数
* @en Current token count
*/
tokens: number;
/**
* @zh 上次更新时间
* @en Last update time
*/
lastUpdate: number;
}
/**
* @zh 令牌桶速率限制策略
* @en Token bucket rate limit strategy
*
* @zh 令牌桶算法允许突发流量,同时保持长期速率限制。
* 令牌以固定速率添加到桶中,每个请求消耗一个或多个令牌。
* @en Token bucket algorithm allows burst traffic while maintaining long-term rate limit.
* Tokens are added to the bucket at a fixed rate, each request consumes one or more tokens.
*
* @example
* ```typescript
* const strategy = new TokenBucketStrategy({
* rate: 10, // 10 tokens per second
* capacity: 20 // bucket can hold 20 tokens max
* });
*
* const result = strategy.consume('player-123');
* if (result.allowed) {
* // Process message
* }
* ```
*/
export class TokenBucketStrategy implements IRateLimitStrategy {
readonly name = 'token-bucket';
private _rate: number;
private _capacity: number;
private _buckets: Map<string, BucketState> = new Map();
/**
* @zh 创建令牌桶策略
* @en Create token bucket strategy
*
* @param config - @zh 配置 @en Configuration
* @param config.rate - @zh 每秒添加的令牌数 @en Tokens added per second
* @param config.capacity - @zh 桶容量(最大令牌数)@en Bucket capacity (max tokens)
*/
constructor(config: StrategyConfig) {
this._rate = config.rate;
this._capacity = config.capacity;
}
/**
* @zh 尝试消费令牌
* @en Try to consume tokens
*/
consume(key: string, cost: number = 1): RateLimitResult {
const now = Date.now();
const bucket = this._getOrCreateBucket(key, now);
this._refillBucket(bucket, now);
if (bucket.tokens >= cost) {
bucket.tokens -= cost;
return {
allowed: true,
remaining: Math.floor(bucket.tokens),
resetAt: now + Math.ceil((this._capacity - bucket.tokens) / this._rate * 1000)
};
}
const tokensNeeded = cost - bucket.tokens;
const retryAfter = Math.ceil(tokensNeeded / this._rate * 1000);
return {
allowed: false,
remaining: 0,
resetAt: now + retryAfter,
retryAfter
};
}
/**
* @zh 获取当前状态
* @en Get current status
*/
getStatus(key: string): RateLimitResult {
const now = Date.now();
const bucket = this._buckets.get(key);
if (!bucket) {
return {
allowed: true,
remaining: this._capacity,
resetAt: now
};
}
this._refillBucket(bucket, now);
return {
allowed: bucket.tokens >= 1,
remaining: Math.floor(bucket.tokens),
resetAt: now + Math.ceil((this._capacity - bucket.tokens) / this._rate * 1000)
};
}
/**
* @zh 重置指定键
* @en Reset specified key
*/
reset(key: string): void {
this._buckets.delete(key);
}
/**
* @zh 清理所有记录
* @en Clean up all records
*/
cleanup(): void {
const now = Date.now();
const expireThreshold = 60000;
for (const [key, bucket] of this._buckets) {
if (now - bucket.lastUpdate > expireThreshold && bucket.tokens >= this._capacity) {
this._buckets.delete(key);
}
}
}
/**
* @zh 获取或创建桶
* @en Get or create bucket
*/
private _getOrCreateBucket(key: string, now: number): BucketState {
let bucket = this._buckets.get(key);
if (!bucket) {
bucket = {
tokens: this._capacity,
lastUpdate: now
};
this._buckets.set(key, bucket);
}
return bucket;
}
/**
* @zh 补充令牌
* @en Refill tokens
*/
private _refillBucket(bucket: BucketState, now: number): void {
const elapsed = now - bucket.lastUpdate;
const tokensToAdd = (elapsed / 1000) * this._rate;
bucket.tokens = Math.min(this._capacity, bucket.tokens + tokensToAdd);
bucket.lastUpdate = now;
}
}
/**
* @zh 创建令牌桶策略
* @en Create token bucket strategy
*
* @example
* ```typescript
* const strategy = createTokenBucketStrategy({
* rate: 10,
* capacity: 20
* });
* ```
*/
export function createTokenBucketStrategy(config: StrategyConfig): TokenBucketStrategy {
return new TokenBucketStrategy(config);
}

View File

@@ -0,0 +1,8 @@
/**
* @zh 速率限制策略
* @en Rate limit strategies
*/
export { TokenBucketStrategy, createTokenBucketStrategy } from './TokenBucket.js';
export { SlidingWindowStrategy, createSlidingWindowStrategy } from './SlidingWindow.js';
export { FixedWindowStrategy, createFixedWindowStrategy } from './FixedWindow.js';

View File

@@ -0,0 +1,267 @@
/**
* @zh 速率限制类型定义
* @en Rate limit type definitions
*/
import type { Player } from '../room/Player.js';
/**
* @zh 速率限制结果
* @en Rate limit result
*/
export interface RateLimitResult {
/**
* @zh 是否允许
* @en Whether allowed
*/
allowed: boolean;
/**
* @zh 剩余配额
* @en Remaining quota
*/
remaining: number;
/**
* @zh 配额重置时间(毫秒时间戳)
* @en Quota reset time (milliseconds timestamp)
*/
resetAt: number;
/**
* @zh 重试等待时间(毫秒),仅在被限流时返回
* @en Retry after time (milliseconds), only returned when rate limited
*/
retryAfter?: number;
}
/**
* @zh 速率限制策略接口
* @en Rate limit strategy interface
*/
export interface IRateLimitStrategy {
/**
* @zh 策略名称
* @en Strategy name
*/
readonly name: string;
/**
* @zh 尝试消费配额
* @en Try to consume quota
*
* @param key - @zh 限流键通常是玩家ID或连接ID@en Rate limit key (usually player ID or connection ID)
* @param cost - @zh 消费数量默认1@en Consumption amount (default 1)
* @returns @zh 限流结果 @en Rate limit result
*/
consume(key: string, cost?: number): RateLimitResult;
/**
* @zh 获取当前状态(不消费)
* @en Get current status (without consuming)
*
* @param key - @zh 限流键 @en Rate limit key
* @returns @zh 限流结果 @en Rate limit result
*/
getStatus(key: string): RateLimitResult;
/**
* @zh 重置指定键的限流状态
* @en Reset rate limit status for specified key
*
* @param key - @zh 限流键 @en Rate limit key
*/
reset(key: string): void;
/**
* @zh 清理所有过期的限流记录
* @en Clean up all expired rate limit records
*/
cleanup(): void;
}
/**
* @zh 速率限制策略类型
* @en Rate limit strategy type
*/
export type RateLimitStrategyType = 'token-bucket' | 'sliding-window' | 'fixed-window';
/**
* @zh 速率限制配置
* @en Rate limit configuration
*/
export interface RateLimitConfig {
/**
* @zh 每秒允许的消息数
* @en Messages allowed per second
* @defaultValue 10
*/
messagesPerSecond?: number;
/**
* @zh 突发容量(令牌桶大小)
* @en Burst capacity (token bucket size)
* @defaultValue 20
*/
burstSize?: number;
/**
* @zh 限流策略
* @en Rate limit strategy
* @defaultValue 'token-bucket'
*/
strategy?: RateLimitStrategyType;
/**
* @zh 被限流时的回调
* @en Callback when rate limited
*/
onLimited?: (player: Player, messageType: string, result: RateLimitResult) => void;
/**
* @zh 是否在限流时断开连接
* @en Whether to disconnect when rate limited
* @defaultValue false
*/
disconnectOnLimit?: boolean;
/**
* @zh 连续被限流多少次后断开连接0 表示不断开)
* @en Disconnect after how many consecutive rate limits (0 means never)
* @defaultValue 0
*/
maxConsecutiveLimits?: number;
/**
* @zh 获取限流键的函数默认使用玩家ID
* @en Function to get rate limit key (default uses player ID)
*/
getKey?: (player: Player) => string;
/**
* @zh 清理间隔(毫秒)
* @en Cleanup interval (milliseconds)
* @defaultValue 60000
*/
cleanupInterval?: number;
}
/**
* @zh 单个消息的速率限制配置
* @en Rate limit configuration for individual message
*/
export interface MessageRateLimitConfig {
/**
* @zh 每秒允许的消息数
* @en Messages allowed per second
*/
messagesPerSecond?: number;
/**
* @zh 突发容量
* @en Burst capacity
*/
burstSize?: number;
/**
* @zh 消费的令牌数默认1
* @en Tokens to consume (default 1)
*/
cost?: number;
}
/**
* @zh 速率限制元数据
* @en Rate limit metadata
*/
export interface RateLimitMetadata {
/**
* @zh 是否启用速率限制
* @en Whether rate limit is enabled
*/
enabled: boolean;
/**
* @zh 是否豁免速率限制
* @en Whether exempt from rate limit
*/
exempt?: boolean;
/**
* @zh 自定义配置
* @en Custom configuration
*/
config?: MessageRateLimitConfig;
}
/**
* @zh 速率限制上下文接口
* @en Rate limit context interface
*/
export interface IRateLimitContext {
/**
* @zh 检查是否允许(不消费)
* @en Check if allowed (without consuming)
*/
check(messageType?: string): RateLimitResult;
/**
* @zh 消费配额
* @en Consume quota
*/
consume(messageType?: string, cost?: number): RateLimitResult;
/**
* @zh 重置限流状态
* @en Reset rate limit status
*/
reset(messageType?: string): void;
/**
* @zh 获取连续被限流次数
* @en Get consecutive limit count
*/
readonly consecutiveLimitCount: number;
/**
* @zh 重置连续限流计数
* @en Reset consecutive limit count
*/
resetConsecutiveCount(): void;
}
/**
* @zh 带速率限制的 Room 接口
* @en Room interface with rate limit
*/
export interface RateLimitedRoom {
/**
* @zh 获取玩家的速率限制上下文
* @en Get rate limit context for player
*/
getRateLimitContext(player: Player): IRateLimitContext | null;
/**
* @zh 全局速率限制策略
* @en Global rate limit strategy
*/
readonly rateLimitStrategy: IRateLimitStrategy;
}
/**
* @zh 速率限制策略配置
* @en Rate limit strategy configuration
*/
export interface StrategyConfig {
/**
* @zh 每秒允许的请求数
* @en Requests allowed per second
*/
rate: number;
/**
* @zh 容量/窗口大小
* @en Capacity/window size
*/
capacity: number;
}

View File

@@ -197,9 +197,9 @@ export class RoomManager {
)
}
private _findAvailableRoom(name: string): Room | undefined {
private _findAvailableRoom(name: string): Room | null {
const def = this._definitions.get(name)
if (!def) return undefined
if (!def) return null
for (const room of this._rooms.values()) {
if (
@@ -212,7 +212,7 @@ export class RoomManager {
}
}
return undefined
return null
}
private _generateRoomId(): string {

View File

@@ -0,0 +1,134 @@
/**
* @zh 模拟房间
* @en Mock room for testing
*/
import { Room, onMessage, type Player } from '../room/index.js'
/**
* @zh 模拟房间状态
* @en Mock room state
*/
export interface MockRoomState {
messages: Array<{ type: string; data: unknown; playerId: string }>
joinCount: number
leaveCount: number
}
/**
* @zh 模拟房间
* @en Mock room for testing
*
* @zh 记录所有事件和消息,用于测试断言
* @en Records all events and messages for test assertions
*
* @example
* ```typescript
* const env = await createTestEnv()
* env.server.define('mock', MockRoom)
*
* const client = await env.createClient()
* await client.joinRoom('mock')
*
* client.sendToRoom('Test', { value: 123 })
* await wait(50)
*
* // MockRoom 会广播收到的消息
* const msg = client.getLastMessage('RoomMessage')
* ```
*/
export class MockRoom extends Room<MockRoomState> {
state: MockRoomState = {
messages: [],
joinCount: 0,
leaveCount: 0,
}
onCreate(): void {
// 房间创建
}
onJoin(player: Player): void {
this.state.joinCount++
this.broadcast('PlayerJoined', {
playerId: player.id,
joinCount: this.state.joinCount,
})
}
onLeave(player: Player): void {
this.state.leaveCount++
this.broadcast('PlayerLeft', {
playerId: player.id,
leaveCount: this.state.leaveCount,
})
}
@onMessage('*')
handleAnyMessage(data: unknown, player: Player, type: string): void {
this.state.messages.push({
type,
data,
playerId: player.id,
})
// 回显消息给所有玩家
this.broadcast('MessageReceived', {
type,
data,
from: player.id,
})
}
@onMessage('Echo')
handleEcho(data: unknown, player: Player): void {
// 只回复给发送者
player.send('EchoReply', data)
}
@onMessage('Broadcast')
handleBroadcast(data: unknown, _player: Player): void {
this.broadcast('BroadcastMessage', data)
}
@onMessage('Ping')
handlePing(_data: unknown, player: Player): void {
player.send('Pong', { timestamp: Date.now() })
}
}
/**
* @zh 简单回显房间
* @en Simple echo room
*
* @zh 将收到的任何消息回显给发送者
* @en Echoes any received message back to sender
*/
export class EchoRoom extends Room {
@onMessage('*')
handleAnyMessage(data: unknown, player: Player, type: string): void {
player.send(type, data)
}
}
/**
* @zh 广播房间
* @en Broadcast room
*
* @zh 将收到的任何消息广播给所有玩家
* @en Broadcasts any received message to all players
*/
export class BroadcastRoom extends Room {
onJoin(player: Player): void {
this.broadcast('PlayerJoined', { id: player.id })
}
onLeave(player: Player): void {
this.broadcast('PlayerLeft', { id: player.id })
}
@onMessage('*')
handleAnyMessage(data: unknown, player: Player, type: string): void {
this.broadcast(type, { from: player.id, data })
}
}

View File

@@ -0,0 +1,371 @@
/**
* @zh 房间测试示例
* @en Room test examples
*
* @zh 这个文件展示了如何使用测试工具进行服务器测试
* @en This file demonstrates how to use testing utilities for server testing
*/
import { describe, it, expect, beforeEach, afterEach } from 'vitest'
import { createTestEnv, type TestEnvironment, wait } from './TestServer.js'
import { MockRoom, BroadcastRoom } from './MockRoom.js'
import { Room, onMessage, type Player } from '../room/index.js'
// ============================================================================
// Custom Room for Testing | 自定义测试房间
// ============================================================================
interface GameState {
players: Map<string, { x: number; y: number }>
scores: Map<string, number>
}
class GameRoom extends Room<GameState> {
maxPlayers = 4
state: GameState = {
players: new Map(),
scores: new Map(),
}
onJoin(player: Player): void {
this.state.players.set(player.id, { x: 0, y: 0 })
this.state.scores.set(player.id, 0)
this.broadcast('PlayerJoined', {
playerId: player.id,
playerCount: this.state.players.size,
})
}
onLeave(player: Player): void {
this.state.players.delete(player.id)
this.state.scores.delete(player.id)
this.broadcast('PlayerLeft', {
playerId: player.id,
playerCount: this.state.players.size,
})
}
@onMessage('Move')
handleMove(data: { x: number; y: number }, player: Player): void {
const pos = this.state.players.get(player.id)
if (pos) {
pos.x = data.x
pos.y = data.y
this.broadcast('PlayerMoved', {
playerId: player.id,
x: data.x,
y: data.y,
})
}
}
@onMessage('Score')
handleScore(data: { points: number }, player: Player): void {
const current = this.state.scores.get(player.id) ?? 0
this.state.scores.set(player.id, current + data.points)
player.send('ScoreUpdated', {
score: this.state.scores.get(player.id),
})
}
}
// ============================================================================
// Test Suites | 测试套件
// ============================================================================
describe('Room Integration Tests', () => {
let env: TestEnvironment
beforeEach(async () => {
env = await createTestEnv()
})
afterEach(async () => {
await env.cleanup()
})
// ========================================================================
// Basic Tests | 基础测试
// ========================================================================
describe('Basic Room Operations', () => {
it('should create and join room', async () => {
env.server.define('game', GameRoom)
const client = await env.createClient()
const result = await client.joinRoom('game')
expect(result.roomId).toBeDefined()
expect(result.playerId).toBeDefined()
expect(client.roomId).toBe(result.roomId)
})
it('should leave room', async () => {
env.server.define('game', GameRoom)
const client = await env.createClient()
await client.joinRoom('game')
await client.leaveRoom()
expect(client.roomId).toBeNull()
})
it('should join existing room by id', async () => {
env.server.define('game', GameRoom)
const client1 = await env.createClient()
const { roomId } = await client1.joinRoom('game')
const client2 = await env.createClient()
const result = await client2.joinRoomById(roomId)
expect(result.roomId).toBe(roomId)
})
})
// ========================================================================
// Message Tests | 消息测试
// ========================================================================
describe('Room Messages', () => {
it('should receive room messages', async () => {
env.server.define('game', GameRoom)
const client = await env.createClient()
await client.joinRoom('game')
const movePromise = client.waitForRoomMessage('PlayerMoved')
client.sendToRoom('Move', { x: 100, y: 200 })
const msg = await movePromise
expect(msg).toEqual({
playerId: client.playerId,
x: 100,
y: 200,
})
})
it('should receive broadcast messages', async () => {
env.server.define('game', GameRoom)
const [client1, client2] = await env.createClients(2)
const { roomId } = await client1.joinRoom('game')
await client2.joinRoomById(roomId)
// client1 等待收到 client2 的移动消息
const movePromise = client1.waitForRoomMessage('PlayerMoved')
client2.sendToRoom('Move', { x: 50, y: 75 })
const msg = await movePromise
expect(msg).toMatchObject({
playerId: client2.playerId,
x: 50,
y: 75,
})
})
it('should handle player join/leave broadcasts', async () => {
env.server.define('broadcast', BroadcastRoom)
const client1 = await env.createClient()
const { roomId } = await client1.joinRoom('broadcast')
// 等待 client2 加入的广播
const joinPromise = client1.waitForRoomMessage<{ id: string }>('PlayerJoined')
const client2 = await env.createClient()
const client2Result = await client2.joinRoomById(roomId)
const joinMsg = await joinPromise
expect(joinMsg).toMatchObject({ id: client2Result.playerId })
// 等待 client2 离开的广播
const leavePromise = client1.waitForRoomMessage<{ id: string }>('PlayerLeft')
const client2PlayerId = client2.playerId // 保存 playerId
await client2.leaveRoom()
const leaveMsg = await leavePromise
expect(leaveMsg).toMatchObject({ id: client2PlayerId })
})
})
// ========================================================================
// MockRoom Tests | 模拟房间测试
// ========================================================================
describe('MockRoom', () => {
it('should record messages', async () => {
env.server.define('mock', MockRoom)
const client = await env.createClient()
await client.joinRoom('mock')
// 使用 Echo 消息,因为它是明确定义的
const echoPromise = client.waitForRoomMessage('EchoReply')
client.sendToRoom('Echo', { value: 123 })
await echoPromise
expect(client.hasReceivedMessage('RoomMessage')).toBe(true)
})
it('should handle echo', async () => {
env.server.define('mock', MockRoom)
const client = await env.createClient()
await client.joinRoom('mock')
const echoPromise = client.waitForRoomMessage('EchoReply')
client.sendToRoom('Echo', { message: 'hello' })
const reply = await echoPromise
expect(reply).toEqual({ message: 'hello' })
})
it('should handle ping/pong', async () => {
env.server.define('mock', MockRoom)
const client = await env.createClient()
await client.joinRoom('mock')
const pongPromise = client.waitForRoomMessage<{ timestamp: number }>('Pong')
client.sendToRoom('Ping', {})
const pong = await pongPromise
expect(pong.timestamp).toBeGreaterThan(0)
})
})
// ========================================================================
// Multiple Clients Tests | 多客户端测试
// ========================================================================
describe('Multiple Clients', () => {
it('should handle multiple clients in same room', async () => {
env.server.define('game', GameRoom)
const clients = await env.createClients(3)
const { roomId } = await clients[0].joinRoom('game')
for (let i = 1; i < clients.length; i++) {
await clients[i].joinRoomById(roomId)
}
// 所有客户端都应该能收到消息
const promises = clients.map((c) => c.waitForRoomMessage('PlayerMoved'))
clients[0].sendToRoom('Move', { x: 1, y: 2 })
const results = await Promise.all(promises)
for (const result of results) {
expect(result).toMatchObject({ x: 1, y: 2 })
}
})
it('should handle concurrent room operations', async () => {
env.server.define('game', GameRoom)
const clients = await env.createClients(4) // maxPlayers = 4
// 顺序加入房间(避免并发创建多个房间)
const { roomId } = await clients[0].joinRoom('game')
// 其余客户端加入同一房间
const results = await Promise.all(
clients.slice(1).map((c) => c.joinRoomById(roomId))
)
// 验证所有客户端都在同一房间
for (const result of results) {
expect(result.roomId).toBe(roomId)
}
})
})
// ========================================================================
// Error Handling Tests | 错误处理测试
// ========================================================================
describe('Error Handling', () => {
it('should reject joining non-existent room type', async () => {
const client = await env.createClient()
await expect(client.joinRoom('nonexistent')).rejects.toThrow()
})
it('should handle client disconnect gracefully', async () => {
env.server.define('game', GameRoom)
const client1 = await env.createClient()
const { roomId } = await client1.joinRoom('game')
const client2 = await env.createClient()
await client2.joinRoomById(roomId)
// 等待 client2 离开的广播
const leavePromise = client1.waitForRoomMessage('PlayerLeft')
// 强制断开 client2
await client2.disconnect()
// client1 应该收到离开消息
const msg = await leavePromise
expect(msg).toBeDefined()
})
})
// ========================================================================
// Assertion Helpers Tests | 断言辅助测试
// ========================================================================
describe('TestClient Assertions', () => {
it('should track received messages', async () => {
env.server.define('mock', MockRoom)
const client = await env.createClient()
await client.joinRoom('mock')
// 发送多条消息
client.sendToRoom('Test', { n: 1 })
client.sendToRoom('Test', { n: 2 })
client.sendToRoom('Test', { n: 3 })
// 等待消息处理
await wait(100)
expect(client.getMessageCount()).toBeGreaterThan(0)
expect(client.hasReceivedMessage('RoomMessage')).toBe(true)
})
it('should get messages of specific type', async () => {
env.server.define('mock', MockRoom)
const client = await env.createClient()
await client.joinRoom('mock')
client.sendToRoom('Ping', {})
await client.waitForRoomMessage('Pong')
const pongs = client.getMessagesOfType('RoomMessage')
expect(pongs.length).toBeGreaterThan(0)
})
it('should clear message history', async () => {
env.server.define('mock', MockRoom)
const client = await env.createClient()
await client.joinRoom('mock')
client.sendToRoom('Test', {})
await wait(50)
expect(client.getMessageCount()).toBeGreaterThan(0)
client.clearMessages()
expect(client.getMessageCount()).toBe(0)
})
})
})

View File

@@ -0,0 +1,523 @@
/**
* @zh 测试客户端
* @en Test client for server testing
*/
import WebSocket from 'ws'
import { json } from '@esengine/rpc/codec'
import type { Codec } from '@esengine/rpc/codec'
// ============================================================================
// Types | 类型定义
// ============================================================================
/**
* @zh 测试客户端配置
* @en Test client options
*/
export interface TestClientOptions {
/**
* @zh 编解码器
* @en Codec
* @defaultValue json()
*/
codec?: Codec
/**
* @zh API 调用超时(毫秒)
* @en API call timeout in milliseconds
* @defaultValue 5000
*/
timeout?: number
/**
* @zh 连接超时(毫秒)
* @en Connection timeout in milliseconds
* @defaultValue 5000
*/
connectTimeout?: number
}
/**
* @zh 房间加入结果
* @en Room join result
*/
export interface JoinRoomResult {
roomId: string
playerId: string
}
/**
* @zh 收到的消息记录
* @en Received message record
*/
export interface ReceivedMessage {
type: string
data: unknown
timestamp: number
}
// ============================================================================
// Constants | 常量
// ============================================================================
const PacketType = {
ApiRequest: 0,
ApiResponse: 1,
ApiError: 2,
Message: 3,
} as const
// ============================================================================
// TestClient Class | 测试客户端类
// ============================================================================
interface PendingCall {
resolve: (value: unknown) => void
reject: (error: Error) => void
timer: ReturnType<typeof setTimeout>
}
/**
* @zh 测试客户端
* @en Test client for server integration testing
*
* @zh 专为测试设计的客户端,提供便捷的断言方法和消息记录功能
* @en Client designed for testing, with convenient assertion methods and message recording
*
* @example
* ```typescript
* const client = new TestClient(3000)
* await client.connect()
*
* // 加入房间
* const { roomId } = await client.joinRoom('game')
*
* // 发送消息
* client.sendToRoom('Move', { x: 10, y: 20 })
*
* // 等待收到特定消息
* const msg = await client.waitForMessage('PlayerMoved')
*
* // 断言收到消息
* expect(client.hasReceivedMessage('PlayerMoved')).toBe(true)
*
* await client.disconnect()
* ```
*/
export class TestClient {
private readonly _port: number
private readonly _codec: Codec
private readonly _timeout: number
private readonly _connectTimeout: number
private _ws: WebSocket | null = null
private _callIdCounter = 0
private _connected = false
private _currentRoomId: string | null = null
private _currentPlayerId: string | null = null
private readonly _pendingCalls = new Map<number, PendingCall>()
private readonly _msgHandlers = new Map<string, Set<(data: unknown) => void>>()
private readonly _receivedMessages: ReceivedMessage[] = []
constructor(port: number, options: TestClientOptions = {}) {
this._port = port
this._codec = options.codec ?? json()
this._timeout = options.timeout ?? 5000
this._connectTimeout = options.connectTimeout ?? 5000
}
// ========================================================================
// Properties | 属性
// ========================================================================
/**
* @zh 是否已连接
* @en Whether connected
*/
get isConnected(): boolean {
return this._connected
}
/**
* @zh 当前房间 ID
* @en Current room ID
*/
get roomId(): string | null {
return this._currentRoomId
}
/**
* @zh 当前玩家 ID
* @en Current player ID
*/
get playerId(): string | null {
return this._currentPlayerId
}
/**
* @zh 收到的所有消息
* @en All received messages
*/
get receivedMessages(): ReadonlyArray<ReceivedMessage> {
return this._receivedMessages
}
// ========================================================================
// Connection | 连接管理
// ========================================================================
/**
* @zh 连接到服务器
* @en Connect to server
*/
connect(): Promise<this> {
return new Promise((resolve, reject) => {
const url = `ws://localhost:${this._port}`
this._ws = new WebSocket(url)
const timeout = setTimeout(() => {
this._ws?.close()
reject(new Error(`Connection timeout after ${this._connectTimeout}ms`))
}, this._connectTimeout)
this._ws.on('open', () => {
clearTimeout(timeout)
this._connected = true
resolve(this)
})
this._ws.on('close', () => {
this._connected = false
this._rejectAllPending('Connection closed')
})
this._ws.on('error', (err) => {
clearTimeout(timeout)
if (!this._connected) {
reject(err)
}
})
this._ws.on('message', (data: Buffer) => {
this._handleMessage(data)
})
})
}
/**
* @zh 断开连接
* @en Disconnect from server
*/
async disconnect(): Promise<void> {
return new Promise((resolve) => {
if (!this._ws || this._ws.readyState === WebSocket.CLOSED) {
resolve()
return
}
this._ws.once('close', () => {
this._connected = false
this._ws = null
resolve()
})
this._ws.close()
})
}
// ========================================================================
// Room Operations | 房间操作
// ========================================================================
/**
* @zh 加入房间
* @en Join a room
*/
async joinRoom(roomType: string, options?: Record<string, unknown>): Promise<JoinRoomResult> {
const result = await this.call<JoinRoomResult>('JoinRoom', { roomType, options })
this._currentRoomId = result.roomId
this._currentPlayerId = result.playerId
return result
}
/**
* @zh 通过 ID 加入房间
* @en Join a room by ID
*/
async joinRoomById(roomId: string): Promise<JoinRoomResult> {
const result = await this.call<JoinRoomResult>('JoinRoom', { roomId })
this._currentRoomId = result.roomId
this._currentPlayerId = result.playerId
return result
}
/**
* @zh 离开房间
* @en Leave room
*/
async leaveRoom(): Promise<void> {
await this.call('LeaveRoom', {})
this._currentRoomId = null
this._currentPlayerId = null
}
/**
* @zh 发送消息到房间
* @en Send message to room
*/
sendToRoom(type: string, data: unknown): void {
this.send('RoomMessage', { type, data })
}
// ========================================================================
// API Calls | API 调用
// ========================================================================
/**
* @zh 调用 API
* @en Call API
*/
call<T = unknown>(name: string, input: unknown): Promise<T> {
return new Promise((resolve, reject) => {
if (!this._connected || !this._ws) {
reject(new Error('Not connected'))
return
}
const id = ++this._callIdCounter
const timer = setTimeout(() => {
this._pendingCalls.delete(id)
reject(new Error(`API call '${name}' timeout after ${this._timeout}ms`))
}, this._timeout)
this._pendingCalls.set(id, {
resolve: resolve as (v: unknown) => void,
reject,
timer,
})
const packet = [PacketType.ApiRequest, id, name, input]
// eslint-disable-next-line @typescript-eslint/no-explicit-any
this._ws.send(this._codec.encode(packet as any) as Buffer)
})
}
/**
* @zh 发送消息
* @en Send message
*/
send(name: string, data: unknown): void {
if (!this._connected || !this._ws) return
const packet = [PacketType.Message, name, data]
// eslint-disable-next-line @typescript-eslint/no-explicit-any
this._ws.send(this._codec.encode(packet as any) as Buffer)
}
// ========================================================================
// Message Handling | 消息处理
// ========================================================================
/**
* @zh 监听消息
* @en Listen for message
*/
on(name: string, handler: (data: unknown) => void): this {
let handlers = this._msgHandlers.get(name)
if (!handlers) {
handlers = new Set()
this._msgHandlers.set(name, handlers)
}
handlers.add(handler)
return this
}
/**
* @zh 取消监听消息
* @en Remove message listener
*/
off(name: string, handler?: (data: unknown) => void): this {
if (handler) {
this._msgHandlers.get(name)?.delete(handler)
} else {
this._msgHandlers.delete(name)
}
return this
}
/**
* @zh 等待收到指定消息
* @en Wait for a specific message
*/
waitForMessage<T = unknown>(type: string, timeout?: number): Promise<T> {
return new Promise((resolve, reject) => {
const timeoutMs = timeout ?? this._timeout
const timer = setTimeout(() => {
this.off(type, handler)
reject(new Error(`Timeout waiting for message '${type}' after ${timeoutMs}ms`))
}, timeoutMs)
const handler = (data: unknown) => {
clearTimeout(timer)
this.off(type, handler)
resolve(data as T)
}
this.on(type, handler)
})
}
/**
* @zh 等待收到指定房间消息
* @en Wait for a specific room message
*/
waitForRoomMessage<T = unknown>(type: string, timeout?: number): Promise<T> {
return new Promise((resolve, reject) => {
const timeoutMs = timeout ?? this._timeout
const timer = setTimeout(() => {
this.off('RoomMessage', handler)
reject(new Error(`Timeout waiting for room message '${type}' after ${timeoutMs}ms`))
}, timeoutMs)
const handler = (data: unknown) => {
const msg = data as { type: string; data: unknown }
if (msg.type === type) {
clearTimeout(timer)
this.off('RoomMessage', handler)
resolve(msg.data as T)
}
}
this.on('RoomMessage', handler)
})
}
// ========================================================================
// Assertions | 断言辅助
// ========================================================================
/**
* @zh 是否收到过指定消息
* @en Whether received a specific message
*/
hasReceivedMessage(type: string): boolean {
return this._receivedMessages.some((m) => m.type === type)
}
/**
* @zh 获取指定类型的所有消息
* @en Get all messages of a specific type
*/
getMessagesOfType<T = unknown>(type: string): T[] {
return this._receivedMessages
.filter((m) => m.type === type)
.map((m) => m.data as T)
}
/**
* @zh 获取最后收到的指定类型消息
* @en Get the last received message of a specific type
*/
getLastMessage<T = unknown>(type: string): T | undefined {
for (let i = this._receivedMessages.length - 1; i >= 0; i--) {
if (this._receivedMessages[i].type === type) {
return this._receivedMessages[i].data as T
}
}
return undefined
}
/**
* @zh 清空消息记录
* @en Clear message records
*/
clearMessages(): void {
this._receivedMessages.length = 0
}
/**
* @zh 获取收到的消息数量
* @en Get received message count
*/
getMessageCount(type?: string): number {
if (type) {
return this._receivedMessages.filter((m) => m.type === type).length
}
return this._receivedMessages.length
}
// ========================================================================
// Private Methods | 私有方法
// ========================================================================
private _handleMessage(raw: Buffer): void {
try {
const packet = this._codec.decode(raw) as unknown[]
const type = packet[0] as number
switch (type) {
case PacketType.ApiResponse:
this._handleApiResponse([packet[0], packet[1], packet[2]] as [number, number, unknown])
break
case PacketType.ApiError:
this._handleApiError([packet[0], packet[1], packet[2], packet[3]] as [number, number, string, string])
break
case PacketType.Message:
this._handleMsg([packet[0], packet[1], packet[2]] as [number, string, unknown])
break
}
} catch (err) {
console.error('[TestClient] Failed to handle message:', err)
}
}
private _handleApiResponse([, id, result]: [number, number, unknown]): void {
const pending = this._pendingCalls.get(id)
if (pending) {
clearTimeout(pending.timer)
this._pendingCalls.delete(id)
pending.resolve(result)
}
}
private _handleApiError([, id, code, message]: [number, number, string, string]): void {
const pending = this._pendingCalls.get(id)
if (pending) {
clearTimeout(pending.timer)
this._pendingCalls.delete(id)
pending.reject(new Error(`[${code}] ${message}`))
}
}
private _handleMsg([, name, data]: [number, string, unknown]): void {
// 记录消息
this._receivedMessages.push({
type: name,
data,
timestamp: Date.now(),
})
// 触发处理器
const handlers = this._msgHandlers.get(name)
if (handlers) {
for (const handler of handlers) {
try {
handler(data)
} catch (err) {
console.error('[TestClient] Handler error:', err)
}
}
}
}
private _rejectAllPending(reason: string): void {
for (const [, pending] of this._pendingCalls) {
clearTimeout(pending.timer)
pending.reject(new Error(reason))
}
this._pendingCalls.clear()
}
}

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@@ -0,0 +1,249 @@
/**
* @zh 测试服务器工具
* @en Test server utilities
*/
import { createServer } from '../core/server.js'
import type { GameServer } from '../types/index.js'
import { TestClient, type TestClientOptions } from './TestClient.js'
// ============================================================================
// Types | 类型定义
// ============================================================================
/**
* @zh 测试服务器配置
* @en Test server options
*/
export interface TestServerOptions {
/**
* @zh 端口号0 表示随机端口
* @en Port number, 0 for random port
* @defaultValue 0
*/
port?: number
/**
* @zh Tick 速率
* @en Tick rate
* @defaultValue 0
*/
tickRate?: number
/**
* @zh 是否禁用控制台日志
* @en Whether to suppress console logs
* @defaultValue true
*/
silent?: boolean
}
/**
* @zh 测试环境
* @en Test environment
*/
export interface TestEnvironment {
/**
* @zh 服务器实例
* @en Server instance
*/
server: GameServer
/**
* @zh 服务器端口
* @en Server port
*/
port: number
/**
* @zh 创建测试客户端
* @en Create test client
*/
createClient(options?: TestClientOptions): Promise<TestClient>
/**
* @zh 创建多个测试客户端
* @en Create multiple test clients
*/
createClients(count: number, options?: TestClientOptions): Promise<TestClient[]>
/**
* @zh 清理测试环境
* @en Cleanup test environment
*/
cleanup(): Promise<void>
/**
* @zh 所有已创建的客户端
* @en All created clients
*/
readonly clients: ReadonlyArray<TestClient>
}
// ============================================================================
// Helper Functions | 辅助函数
// ============================================================================
/**
* @zh 获取随机可用端口
* @en Get a random available port
*/
async function getRandomPort(): Promise<number> {
const net = await import('node:net')
return new Promise((resolve, reject) => {
const server = net.createServer()
server.listen(0, () => {
const address = server.address()
if (address && typeof address === 'object') {
const port = address.port
server.close(() => resolve(port))
} else {
server.close(() => reject(new Error('Failed to get port')))
}
})
server.on('error', reject)
})
}
/**
* @zh 等待指定毫秒
* @en Wait for specified milliseconds
*/
export function wait(ms: number): Promise<void> {
return new Promise((resolve) => setTimeout(resolve, ms))
}
// ============================================================================
// Factory Functions | 工厂函数
// ============================================================================
/**
* @zh 创建测试服务器
* @en Create test server
*
* @example
* ```typescript
* const { server, port, cleanup } = await createTestServer()
* server.define('game', GameRoom)
*
* const client = new TestClient(port)
* await client.connect()
*
* // ... run tests ...
*
* await cleanup()
* ```
*/
export async function createTestServer(
options: TestServerOptions = {}
): Promise<{ server: GameServer; port: number; cleanup: () => Promise<void> }> {
const port = options.port || (await getRandomPort())
const silent = options.silent ?? true
// 临时禁用 console.log
const originalLog = console.log
if (silent) {
console.log = () => {}
}
const server = await createServer({
port,
tickRate: options.tickRate ?? 0,
apiDir: '__non_existent_api__',
msgDir: '__non_existent_msg__',
})
await server.start()
// 恢复 console.log
if (silent) {
console.log = originalLog
}
return {
server,
port,
cleanup: async () => {
await server.stop()
},
}
}
/**
* @zh 创建完整测试环境
* @en Create complete test environment
*
* @zh 包含服务器、客户端创建和清理功能的完整测试环境
* @en Complete test environment with server, client creation and cleanup
*
* @example
* ```typescript
* describe('GameRoom', () => {
* let env: TestEnvironment
*
* beforeEach(async () => {
* env = await createTestEnv()
* env.server.define('game', GameRoom)
* })
*
* afterEach(async () => {
* await env.cleanup()
* })
*
* it('should handle player join', async () => {
* const client = await env.createClient()
* const result = await client.joinRoom('game')
* expect(result.roomId).toBeDefined()
* })
*
* it('should broadcast to all players', async () => {
* const [client1, client2] = await env.createClients(2)
*
* await client1.joinRoom('game')
* const joinPromise = client1.waitForRoomMessage('PlayerJoined')
*
* await client2.joinRoom('game')
* const msg = await joinPromise
*
* expect(msg).toBeDefined()
* })
* })
* ```
*/
export async function createTestEnv(options: TestServerOptions = {}): Promise<TestEnvironment> {
const { server, port, cleanup: serverCleanup } = await createTestServer(options)
const clients: TestClient[] = []
return {
server,
port,
clients,
async createClient(clientOptions?: TestClientOptions): Promise<TestClient> {
const client = new TestClient(port, clientOptions)
await client.connect()
clients.push(client)
return client
},
async createClients(count: number, clientOptions?: TestClientOptions): Promise<TestClient[]> {
const newClients: TestClient[] = []
for (let i = 0; i < count; i++) {
const client = new TestClient(port, clientOptions)
await client.connect()
clients.push(client)
newClients.push(client)
}
return newClients
},
async cleanup(): Promise<void> {
// 断开所有客户端
await Promise.all(clients.map((c) => c.disconnect().catch(() => {})))
clients.length = 0
// 停止服务器
await serverCleanup()
},
}
}

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@@ -0,0 +1,37 @@
/**
* @zh 服务器测试工具
* @en Server testing utilities
*
* @example
* ```typescript
* import { createTestServer, TestClient } from '@esengine/server/testing'
*
* describe('GameRoom', () => {
* let env: TestEnvironment
*
* beforeEach(async () => {
* env = await createTestEnv()
* env.server.define('game', GameRoom)
* })
*
* afterEach(async () => {
* await env.cleanup()
* })
*
* it('should join room', async () => {
* const client = await env.createClient()
* const result = await client.joinRoom('game')
* expect(result.roomId).toBeDefined()
* })
* })
* ```
*/
export { TestClient, type TestClientOptions } from './TestClient.js'
export {
createTestServer,
createTestEnv,
type TestServerOptions,
type TestEnvironment,
} from './TestServer.js'
export { MockRoom } from './MockRoom.js'

View File

@@ -1,11 +1,17 @@
import { defineConfig } from 'tsup'
export default defineConfig({
entry: ['src/index.ts'],
entry: [
'src/index.ts',
'src/auth/index.ts',
'src/auth/testing/index.ts',
'src/ratelimit/index.ts',
'src/testing/index.ts'
],
format: ['esm'],
dts: true,
clean: true,
sourcemap: true,
external: ['ws', '@esengine/rpc'],
external: ['ws', 'jsonwebtoken', '@esengine/rpc', '@esengine/rpc/codec'],
treeshake: true,
})

View File

@@ -0,0 +1,11 @@
import { defineConfig } from 'vitest/config'
export default defineConfig({
test: {
globals: true,
environment: 'node',
include: ['src/**/*.test.ts'],
testTimeout: 10000,
hookTimeout: 10000,
},
})

View File

@@ -0,0 +1,108 @@
# @esengine/transaction
## 2.0.2
### Patch Changes
- Updated dependencies [[`afdeb00`](https://github.com/esengine/esengine/commit/afdeb00b4df9427e7f03b91558bf95804a837b70)]:
- @esengine/server@1.3.0
## 2.0.1
### Patch Changes
- Updated dependencies [[`61a13ba`](https://github.com/esengine/esengine/commit/61a13baca2e1e8fba14e23d439521ec0e6b7ca6e)]:
- @esengine/server@1.2.0
## 2.0.0
### Major Changes
- [#384](https://github.com/esengine/esengine/pull/384) [`3b97838`](https://github.com/esengine/esengine/commit/3b978384c7d4570f9af9d139e3bfea04c6875543) Thanks [@esengine](https://github.com/esengine)! - ## Breaking Changes
### Storage API Simplification
RedisStorage and MongoStorage now use **factory pattern only** for connection management. The direct client injection option has been removed.
**Before (removed):**
```typescript
// Direct client injection - NO LONGER SUPPORTED
const storage = new RedisStorage({ client: redisClient });
const storage = new MongoStorage({ client: mongoClient, database: 'game' });
```
**After (factory pattern only):**
```typescript
// RedisStorage
const storage = new RedisStorage({
factory: () => new Redis('redis://localhost:6379'),
prefix: 'tx:',
transactionTTL: 86400
});
// MongoStorage
const storage = new MongoStorage({
factory: async () => {
const client = new MongoClient('mongodb://localhost:27017');
await client.connect();
return client;
},
database: 'game'
});
```
### New Features
- **Lazy Connection**: Connection is established on first operation, not at construction time
- **Automatic Cleanup**: Support `await using` syntax (TypeScript 5.2+) for automatic resource cleanup
- **Explicit Close**: Call `storage.close()` when done, or use `await using` for automatic disposal
### Migration Guide
1. Replace `client` option with `factory` function
2. Add `storage.close()` call when done, or use `await using`
3. For MongoStorage, ensure factory returns a connected client
## 1.1.0
### Minor Changes
- [#381](https://github.com/esengine/esengine/pull/381) [`d4cef82`](https://github.com/esengine/esengine/commit/d4cef828e1dc1475e8483d40eb1d800c607cf3b6) Thanks [@esengine](https://github.com/esengine)! - feat(transaction): 添加游戏事务系统 | add game transaction system
**@esengine/transaction** - 游戏事务系统 | Game transaction system
### 核心功能 | Core Features
- **TransactionManager** - 事务生命周期管理 | Transaction lifecycle management
- begin()/run() 创建事务 | Create transactions
- 分布式锁支持 | Distributed lock support
- 自动恢复未完成事务 | Auto-recover pending transactions
- **TransactionContext** - 事务上下文 | Transaction context
- 操作链式添加 | Chain operation additions
- 上下文数据共享 | Context data sharing
- 超时控制 | Timeout control
- **Saga 模式** - 补偿式事务 | Compensating transactions
- execute/compensate 成对操作 | Paired execute/compensate
- 自动回滚失败事务 | Auto-rollback on failure
### 存储实现 | Storage Implementations
- **MemoryStorage** - 内存存储,用于开发测试 | In-memory for dev/testing
- **RedisStorage** - Redis 分布式锁和缓存 | Redis distributed lock & cache
- **MongoStorage** - MongoDB 持久化事务日志 | MongoDB persistent transaction logs
### 内置操作 | Built-in Operations
- **CurrencyOperation** - 货币增减操作 | Currency add/deduct
- **InventoryOperation** - 背包物品操作 | Inventory item operations
- **TradeOperation** - 玩家交易操作 | Player trade operations
### 分布式事务 | Distributed Transactions
- **SagaOrchestrator** - 跨服务器 Saga 编排 | Cross-server Saga orchestration
- 完整的 Saga 日志记录 | Complete Saga logging
- 未完成 Saga 恢复 | Incomplete Saga recovery
### Room 集成 | Room Integration
- **withTransactions()** - Room mixin 扩展 | Room mixin extension
- **TransactionRoom** - 预配置的事务 Room 基类 | Pre-configured transaction Room base
### 文档 | Documentation
- 完整的中英文文档 | Complete bilingual documentation
- 核心概念、存储层、操作、分布式事务 | Core concepts, storage, operations, distributed

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@@ -0,0 +1,445 @@
/**
* @zh TransactionContext 单元测试
* @en TransactionContext unit tests
*/
import { describe, it, expect, beforeEach, vi } from 'vitest'
import { TransactionContext, createTransactionContext } from '../../src/core/TransactionContext.js'
import { MemoryStorage } from '../../src/storage/MemoryStorage.js'
import type { ITransactionOperation, ITransactionContext, OperationResult } from '../../src/core/types.js'
// ============================================================================
// Mock Operations | 模拟操作
// ============================================================================
class SuccessOperation implements ITransactionOperation<{ value: number }, { doubled: number }> {
readonly name: string
readonly data: { value: number }
private _compensated = false
constructor(name: string, value: number) {
this.name = name
this.data = { value }
}
async validate(_ctx: ITransactionContext): Promise<boolean> {
return this.data.value > 0
}
async execute(_ctx: ITransactionContext): Promise<OperationResult<{ doubled: number }>> {
return { success: true, data: { doubled: this.data.value * 2 } }
}
async compensate(_ctx: ITransactionContext): Promise<void> {
this._compensated = true
}
get compensated(): boolean {
return this._compensated
}
}
class FailOperation implements ITransactionOperation {
readonly name = 'fail'
readonly data = {}
async validate(_ctx: ITransactionContext): Promise<boolean> {
return true
}
async execute(_ctx: ITransactionContext): Promise<OperationResult> {
return { success: false, error: 'Intentional failure', errorCode: 'FAIL' }
}
async compensate(_ctx: ITransactionContext): Promise<void> {
// No-op
}
}
class ValidationFailOperation implements ITransactionOperation {
readonly name = 'validation-fail'
readonly data = {}
async validate(_ctx: ITransactionContext): Promise<boolean> {
return false
}
async execute(_ctx: ITransactionContext): Promise<OperationResult> {
return { success: true }
}
async compensate(_ctx: ITransactionContext): Promise<void> {
// No-op
}
}
class SlowOperation implements ITransactionOperation {
readonly name = 'slow'
readonly data: { delay: number }
constructor(delay: number) {
this.data = { delay }
}
async validate(_ctx: ITransactionContext): Promise<boolean> {
return true
}
async execute(_ctx: ITransactionContext): Promise<OperationResult> {
await new Promise((resolve) => setTimeout(resolve, this.data.delay))
return { success: true }
}
async compensate(_ctx: ITransactionContext): Promise<void> {
// No-op
}
}
class ContextDataOperation implements ITransactionOperation {
readonly name = 'context-data'
readonly data = {}
async validate(_ctx: ITransactionContext): Promise<boolean> {
return true
}
async execute(ctx: ITransactionContext): Promise<OperationResult> {
ctx.set('testKey', 'testValue')
ctx.set('numberKey', 42)
return { success: true, data: { stored: true } }
}
async compensate(_ctx: ITransactionContext): Promise<void> {
// No-op
}
}
// ============================================================================
// Test Suite | 测试套件
// ============================================================================
describe('TransactionContext', () => {
let storage: MemoryStorage
beforeEach(() => {
storage = new MemoryStorage()
})
// ========================================================================
// 构造器测试 | Constructor Tests
// ========================================================================
describe('Constructor', () => {
it('should create with default options', () => {
const ctx = new TransactionContext()
expect(ctx.id).toMatch(/^tx_/)
expect(ctx.state).toBe('pending')
expect(ctx.timeout).toBe(30000)
expect(ctx.operations).toHaveLength(0)
expect(ctx.storage).toBeNull()
})
it('should create with custom options', () => {
const ctx = new TransactionContext({
timeout: 10000,
storage,
metadata: { userId: 'user-1' },
distributed: true,
})
expect(ctx.timeout).toBe(10000)
expect(ctx.storage).toBe(storage)
expect(ctx.metadata.userId).toBe('user-1')
})
it('should use createTransactionContext factory', () => {
const ctx = createTransactionContext({ timeout: 5000 })
expect(ctx).toBeDefined()
expect(ctx.timeout).toBe(5000)
})
})
// ========================================================================
// 添加操作测试 | Add Operation Tests
// ========================================================================
describe('addOperation()', () => {
it('should add operations', () => {
const ctx = new TransactionContext()
const op1 = new SuccessOperation('op1', 10)
const op2 = new SuccessOperation('op2', 20)
ctx.addOperation(op1).addOperation(op2)
expect(ctx.operations).toHaveLength(2)
expect(ctx.operations[0]).toBe(op1)
expect(ctx.operations[1]).toBe(op2)
})
it('should support method chaining', () => {
const ctx = new TransactionContext()
const result = ctx
.addOperation(new SuccessOperation('op1', 10))
.addOperation(new SuccessOperation('op2', 20))
expect(result).toBe(ctx)
})
it('should throw when adding to non-pending transaction', async () => {
const ctx = new TransactionContext()
ctx.addOperation(new SuccessOperation('op1', 10))
await ctx.execute()
expect(() => ctx.addOperation(new SuccessOperation('op2', 20))).toThrow(
'Cannot add operation to transaction in state'
)
})
})
// ========================================================================
// 执行测试 | Execute Tests
// ========================================================================
describe('execute()', () => {
it('should execute all operations successfully', async () => {
const ctx = new TransactionContext()
ctx.addOperation(new SuccessOperation('op1', 10))
ctx.addOperation(new SuccessOperation('op2', 20))
const result = await ctx.execute()
expect(result.success).toBe(true)
expect(result.transactionId).toBe(ctx.id)
expect(result.results).toHaveLength(2)
expect(result.duration).toBeGreaterThanOrEqual(0)
expect(ctx.state).toBe('committed')
})
it('should return combined result data', async () => {
const ctx = new TransactionContext()
ctx.addOperation(new SuccessOperation('op1', 10))
const result = await ctx.execute<{ doubled: number }>()
expect(result.success).toBe(true)
expect(result.data?.doubled).toBe(20)
})
it('should fail if already executed', async () => {
const ctx = new TransactionContext()
ctx.addOperation(new SuccessOperation('op1', 10))
await ctx.execute()
const result = await ctx.execute()
expect(result.success).toBe(false)
expect(result.error).toContain('already in state')
})
it('should fail on validation error', async () => {
const ctx = new TransactionContext()
ctx.addOperation(new ValidationFailOperation())
const result = await ctx.execute()
expect(result.success).toBe(false)
expect(result.error).toContain('Validation failed')
expect(ctx.state).toBe('rolledback')
})
it('should fail and rollback on operation failure', async () => {
const ctx = new TransactionContext()
const op1 = new SuccessOperation('op1', 10)
const op2 = new FailOperation()
ctx.addOperation(op1).addOperation(op2)
const result = await ctx.execute()
expect(result.success).toBe(false)
expect(result.error).toBe('Intentional failure')
expect(ctx.state).toBe('rolledback')
expect(op1.compensated).toBe(true)
})
it('should timeout on slow operations', async () => {
const ctx = new TransactionContext({ timeout: 50 })
// Add two operations - timeout is checked between operations
ctx.addOperation(new SlowOperation(100))
ctx.addOperation(new SuccessOperation('second', 1))
const result = await ctx.execute()
expect(result.success).toBe(false)
expect(result.error).toContain('timed out')
expect(ctx.state).toBe('rolledback')
})
it('should save transaction log with storage', async () => {
const ctx = new TransactionContext({ storage })
ctx.addOperation(new SuccessOperation('op1', 10))
await ctx.execute()
const log = await storage.getTransaction(ctx.id)
expect(log).not.toBeNull()
expect(log?.state).toBe('committed')
expect(log?.operations).toHaveLength(1)
expect(log?.operations[0].state).toBe('executed')
})
it('should update operation states on failure', async () => {
const ctx = new TransactionContext({ storage })
ctx.addOperation(new SuccessOperation('op1', 10))
ctx.addOperation(new FailOperation())
await ctx.execute()
const log = await storage.getTransaction(ctx.id)
expect(log?.state).toBe('rolledback')
expect(log?.operations[0].state).toBe('compensated')
})
})
// ========================================================================
// 回滚测试 | Rollback Tests
// ========================================================================
describe('rollback()', () => {
it('should rollback pending transaction', async () => {
const ctx = new TransactionContext()
const op1 = new SuccessOperation('op1', 10)
ctx.addOperation(op1)
await ctx.rollback()
expect(ctx.state).toBe('rolledback')
})
it('should not rollback already committed transaction', async () => {
const ctx = new TransactionContext()
ctx.addOperation(new SuccessOperation('op1', 10))
await ctx.execute()
expect(ctx.state).toBe('committed')
await ctx.rollback()
expect(ctx.state).toBe('committed')
})
it('should not rollback already rolledback transaction', async () => {
const ctx = new TransactionContext()
ctx.addOperation(new FailOperation())
await ctx.execute()
expect(ctx.state).toBe('rolledback')
await ctx.rollback()
expect(ctx.state).toBe('rolledback')
})
})
// ========================================================================
// 上下文数据测试 | Context Data Tests
// ========================================================================
describe('Context Data', () => {
it('should get and set context data', () => {
const ctx = new TransactionContext()
ctx.set('key1', 'value1')
ctx.set('key2', { nested: true })
expect(ctx.get<string>('key1')).toBe('value1')
expect(ctx.get<{ nested: boolean }>('key2')).toEqual({ nested: true })
})
it('should return undefined for non-existent key', () => {
const ctx = new TransactionContext()
expect(ctx.get('nonexistent')).toBeUndefined()
})
it('should allow operations to share context data', async () => {
const ctx = new TransactionContext()
ctx.addOperation(new ContextDataOperation())
await ctx.execute()
expect(ctx.get<string>('testKey')).toBe('testValue')
expect(ctx.get<number>('numberKey')).toBe(42)
})
})
// ========================================================================
// 边界情况测试 | Edge Cases
// ========================================================================
describe('Edge Cases', () => {
it('should handle empty operations list', async () => {
const ctx = new TransactionContext()
const result = await ctx.execute()
expect(result.success).toBe(true)
expect(result.results).toHaveLength(0)
expect(ctx.state).toBe('committed')
})
it('should handle single operation', async () => {
const ctx = new TransactionContext()
ctx.addOperation(new SuccessOperation('single', 5))
const result = await ctx.execute()
expect(result.success).toBe(true)
expect(result.results).toHaveLength(1)
})
it('should handle operation throwing exception', async () => {
const ctx = new TransactionContext()
const throwOp: ITransactionOperation = {
name: 'throw',
data: {},
validate: async () => true,
execute: async () => {
throw new Error('Unexpected error')
},
compensate: async () => {},
}
ctx.addOperation(throwOp)
const result = await ctx.execute()
expect(result.success).toBe(false)
expect(result.error).toBe('Unexpected error')
})
it('should handle compensate throwing exception', async () => {
const consoleSpy = vi.spyOn(console, 'error').mockImplementation(() => {})
const ctx = new TransactionContext({ storage })
const badCompensateOp: ITransactionOperation = {
name: 'bad-compensate',
data: {},
validate: async () => true,
execute: async () => ({ success: true }),
compensate: async () => {
throw new Error('Compensation error')
},
}
const failOp = new FailOperation()
ctx.addOperation(badCompensateOp).addOperation(failOp)
const result = await ctx.execute()
expect(result.success).toBe(false)
// Check that operation state was updated with error
const log = await storage.getTransaction(ctx.id)
expect(log?.operations[0].state).toBe('failed')
expect(log?.operations[0].error).toContain('Compensation error')
consoleSpy.mockRestore()
})
})
})

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/**
* @zh TransactionManager 单元测试
* @en TransactionManager unit tests
*/
import { describe, it, expect, beforeEach } from 'vitest'
import { TransactionManager, createTransactionManager } from '../../src/core/TransactionManager.js'
import { MemoryStorage } from '../../src/storage/MemoryStorage.js'
import type { ITransactionOperation, ITransactionContext, OperationResult } from '../../src/core/types.js'
// ============================================================================
// Mock Operation | 模拟操作
// ============================================================================
class MockOperation implements ITransactionOperation<{ value: number }, { result: number }> {
readonly name = 'mock'
readonly data: { value: number }
private _executed = false
constructor(value: number) {
this.data = { value }
}
async validate(_ctx: ITransactionContext): Promise<boolean> {
return this.data.value > 0
}
async execute(_ctx: ITransactionContext): Promise<OperationResult<{ result: number }>> {
this._executed = true
return { success: true, data: { result: this.data.value * 2 } }
}
async compensate(_ctx: ITransactionContext): Promise<void> {
this._executed = false
}
get executed(): boolean {
return this._executed
}
}
class FailingOperation implements ITransactionOperation<{ shouldFail: boolean }> {
readonly name = 'failing'
readonly data: { shouldFail: boolean }
constructor(shouldFail: boolean) {
this.data = { shouldFail }
}
async validate(_ctx: ITransactionContext): Promise<boolean> {
return true
}
async execute(_ctx: ITransactionContext): Promise<OperationResult> {
if (this.data.shouldFail) {
return { success: false, error: 'Intentional failure' }
}
return { success: true }
}
async compensate(_ctx: ITransactionContext): Promise<void> {
// No-op
}
}
// ============================================================================
// Test Suite | 测试套件
// ============================================================================
describe('TransactionManager', () => {
let manager: TransactionManager
let storage: MemoryStorage
beforeEach(() => {
storage = new MemoryStorage()
manager = new TransactionManager({
storage,
defaultTimeout: 5000,
serverId: 'test-server',
})
})
// ========================================================================
// 构造器测试 | Constructor Tests
// ========================================================================
describe('Constructor', () => {
it('should create with default config', () => {
const defaultManager = new TransactionManager()
expect(defaultManager.storage).toBeNull()
expect(defaultManager.activeCount).toBe(0)
expect(defaultManager.serverId).toMatch(/^server_/)
})
it('should use provided config', () => {
expect(manager.storage).toBe(storage)
expect(manager.serverId).toBe('test-server')
})
it('should use createTransactionManager factory', () => {
const factoryManager = createTransactionManager({ serverId: 'factory-server' })
expect(factoryManager).toBeInstanceOf(TransactionManager)
expect(factoryManager.serverId).toBe('factory-server')
})
})
// ========================================================================
// 事务创建测试 | Transaction Creation Tests
// ========================================================================
describe('begin()', () => {
it('should create new transaction context', () => {
const tx = manager.begin()
expect(tx.id).toMatch(/^tx_/)
expect(tx.state).toBe('pending')
})
it('should track active transactions', () => {
expect(manager.activeCount).toBe(0)
const tx1 = manager.begin()
expect(manager.activeCount).toBe(1)
const tx2 = manager.begin()
expect(manager.activeCount).toBe(2)
expect(manager.getTransaction(tx1.id)).toBe(tx1)
expect(manager.getTransaction(tx2.id)).toBe(tx2)
})
it('should use custom timeout', () => {
const tx = manager.begin({ timeout: 10000 })
expect(tx.timeout).toBe(10000)
})
it('should include serverId in metadata', () => {
const tx = manager.begin()
expect(tx.metadata.serverId).toBe('test-server')
})
it('should merge custom metadata', () => {
const tx = manager.begin({
metadata: { userId: 'user-1', action: 'purchase' },
})
expect(tx.metadata.serverId).toBe('test-server')
expect(tx.metadata.userId).toBe('user-1')
expect(tx.metadata.action).toBe('purchase')
})
})
// ========================================================================
// run() 便捷方法测试 | run() Convenience Method Tests
// ========================================================================
describe('run()', () => {
it('should execute transaction with builder', async () => {
const result = await manager.run((ctx) => {
ctx.addOperation(new MockOperation(10))
})
expect(result.success).toBe(true)
expect(result.transactionId).toMatch(/^tx_/)
expect(result.duration).toBeGreaterThanOrEqual(0)
})
it('should support async builder', async () => {
const result = await manager.run(async (ctx) => {
await Promise.resolve()
ctx.addOperation(new MockOperation(5))
})
expect(result.success).toBe(true)
})
it('should clean up active transaction after run', async () => {
expect(manager.activeCount).toBe(0)
await manager.run((ctx) => {
ctx.addOperation(new MockOperation(10))
expect(manager.activeCount).toBe(1)
})
expect(manager.activeCount).toBe(0)
})
it('should clean up even on failure', async () => {
await manager.run((ctx) => {
ctx.addOperation(new FailingOperation(true))
})
expect(manager.activeCount).toBe(0)
})
it('should return typed result data', async () => {
const result = await manager.run<{ result: number }>((ctx) => {
ctx.addOperation(new MockOperation(10))
})
expect(result.success).toBe(true)
expect(result.data?.result).toBe(20)
})
})
// ========================================================================
// 分布式锁测试 | Distributed Lock Tests
// ========================================================================
describe('Distributed Lock', () => {
it('should acquire and release lock', async () => {
const token = await manager.acquireLock('resource-1', 5000)
expect(token).not.toBeNull()
const released = await manager.releaseLock('resource-1', token!)
expect(released).toBe(true)
})
it('should return null without storage', async () => {
const noStorageManager = new TransactionManager()
const token = await noStorageManager.acquireLock('key', 5000)
expect(token).toBeNull()
const released = await noStorageManager.releaseLock('key', 'token')
expect(released).toBe(false)
})
it('should execute withLock successfully', async () => {
let executed = false
await manager.withLock('resource-1', async () => {
executed = true
return 'result'
})
expect(executed).toBe(true)
})
it('should throw if lock acquisition fails', async () => {
// First acquire the lock
await storage.acquireLock('resource-1', 5000)
// Try to acquire with withLock - should fail
await expect(
manager.withLock('resource-1', async () => {
return 'should not reach'
})
).rejects.toThrow('Failed to acquire lock')
})
it('should release lock after withLock completes', async () => {
await manager.withLock('resource-1', async () => {
return 'done'
})
// Should be able to acquire again
const token = await manager.acquireLock('resource-1', 5000)
expect(token).not.toBeNull()
})
it('should release lock even if function throws', async () => {
try {
await manager.withLock('resource-1', async () => {
throw new Error('Test error')
})
} catch {
// Expected
}
// Should be able to acquire again
const token = await manager.acquireLock('resource-1', 5000)
expect(token).not.toBeNull()
})
})
// ========================================================================
// 事务恢复测试 | Transaction Recovery Tests
// ========================================================================
describe('recover()', () => {
it('should return 0 without storage', async () => {
const noStorageManager = new TransactionManager()
const count = await noStorageManager.recover()
expect(count).toBe(0)
})
it('should recover pending transactions', async () => {
// Save a pending transaction directly to storage
await storage.saveTransaction({
id: 'tx-pending',
state: 'executing',
createdAt: Date.now(),
updatedAt: Date.now(),
timeout: 5000,
operations: [
{ name: 'op1', state: 'executed' },
],
metadata: { serverId: 'test-server' },
})
const count = await manager.recover()
expect(count).toBe(1)
// Check that transaction state was updated
const recovered = await storage.getTransaction('tx-pending')
expect(recovered?.state).toBe('rolledback')
})
})
// ========================================================================
// 清理测试 | Cleanup Tests
// ========================================================================
describe('cleanup()', () => {
it('should return 0 without storage', async () => {
const noStorageManager = new TransactionManager()
const count = await noStorageManager.cleanup()
expect(count).toBe(0)
})
it('should clean old completed transactions from pending list', async () => {
const oldTimestamp = Date.now() - 48 * 60 * 60 * 1000 // 48 hours ago
// Note: cleanup() uses getPendingTransactions() which only returns pending/executing state
// This test verifies the cleanup logic for transactions that are in pending state
// but have been marked committed/rolledback (edge case during recovery)
await storage.saveTransaction({
id: 'tx-old-pending',
state: 'pending', // This will be returned by getPendingTransactions
createdAt: oldTimestamp,
updatedAt: oldTimestamp,
timeout: 5000,
operations: [],
})
// The current implementation doesn't clean pending transactions
// This is a limitation - cleanup only works for committed/rolledback states
// but getPendingTransactions doesn't return those
const count = await manager.cleanup()
expect(count).toBe(0) // Nothing cleaned because state is 'pending', not 'committed'
})
})
// ========================================================================
// getTransaction 测试 | getTransaction Tests
// ========================================================================
describe('getTransaction()', () => {
it('should return active transaction', () => {
const tx = manager.begin()
expect(manager.getTransaction(tx.id)).toBe(tx)
})
it('should return undefined for non-existent transaction', () => {
expect(manager.getTransaction('non-existent')).toBeUndefined()
})
})
})

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@@ -0,0 +1,574 @@
/**
* @zh SagaOrchestrator 单元测试
* @en SagaOrchestrator unit tests
*/
import { describe, it, expect, beforeEach, vi } from 'vitest'
import {
SagaOrchestrator,
createSagaOrchestrator,
type SagaStep,
type SagaLog,
} from '../../src/distributed/SagaOrchestrator.js'
import { MemoryStorage } from '../../src/storage/MemoryStorage.js'
// ============================================================================
// Test Suite | 测试套件
// ============================================================================
describe('SagaOrchestrator', () => {
let storage: MemoryStorage
let orchestrator: SagaOrchestrator
beforeEach(() => {
storage = new MemoryStorage()
orchestrator = new SagaOrchestrator({
storage,
timeout: 5000,
serverId: 'test-server',
})
})
// ========================================================================
// 构造器测试 | Constructor Tests
// ========================================================================
describe('Constructor', () => {
it('should create with default config', () => {
const defaultOrchestrator = new SagaOrchestrator()
expect(defaultOrchestrator).toBeDefined()
})
it('should create with custom config', () => {
const customOrchestrator = new SagaOrchestrator({
storage,
timeout: 10000,
serverId: 'custom-server',
})
expect(customOrchestrator).toBeDefined()
})
it('should use createSagaOrchestrator factory', () => {
const factoryOrchestrator = createSagaOrchestrator({ serverId: 'factory-server' })
expect(factoryOrchestrator).toBeInstanceOf(SagaOrchestrator)
})
})
// ========================================================================
// 成功执行测试 | Successful Execution Tests
// ========================================================================
describe('execute() - success', () => {
it('should execute single step saga', async () => {
const executeLog: string[] = []
const steps: SagaStep<{ value: number }>[] = [
{
name: 'step1',
execute: async (data) => {
executeLog.push(`execute:${data.value}`)
return { success: true }
},
compensate: async (data) => {
executeLog.push(`compensate:${data.value}`)
},
data: { value: 1 },
},
]
const result = await orchestrator.execute(steps)
expect(result.success).toBe(true)
expect(result.sagaId).toMatch(/^saga_/)
expect(result.completedSteps).toEqual(['step1'])
expect(result.duration).toBeGreaterThanOrEqual(0)
expect(executeLog).toEqual(['execute:1'])
})
it('should execute multi-step saga', async () => {
const executeLog: string[] = []
const steps: SagaStep<{ name: string }>[] = [
{
name: 'step1',
execute: async (data) => {
executeLog.push(`execute:${data.name}`)
return { success: true }
},
compensate: async (data) => {
executeLog.push(`compensate:${data.name}`)
},
data: { name: 'A' },
},
{
name: 'step2',
execute: async (data) => {
executeLog.push(`execute:${data.name}`)
return { success: true }
},
compensate: async (data) => {
executeLog.push(`compensate:${data.name}`)
},
data: { name: 'B' },
},
{
name: 'step3',
execute: async (data) => {
executeLog.push(`execute:${data.name}`)
return { success: true }
},
compensate: async (data) => {
executeLog.push(`compensate:${data.name}`)
},
data: { name: 'C' },
},
]
const result = await orchestrator.execute(steps)
expect(result.success).toBe(true)
expect(result.completedSteps).toEqual(['step1', 'step2', 'step3'])
expect(executeLog).toEqual(['execute:A', 'execute:B', 'execute:C'])
})
it('should save saga log on success', async () => {
const steps: SagaStep<{}>[] = [
{
name: 'step1',
execute: async () => ({ success: true }),
compensate: async () => {},
data: {},
},
]
const result = await orchestrator.execute(steps)
const log = await orchestrator.getSagaLog(result.sagaId)
expect(log).not.toBeNull()
expect(log?.state).toBe('completed')
expect(log?.steps[0].state).toBe('completed')
})
})
// ========================================================================
// 失败和补偿测试 | Failure and Compensation Tests
// ========================================================================
describe('execute() - failure and compensation', () => {
it('should compensate on step failure', async () => {
const executeLog: string[] = []
const steps: SagaStep<{ name: string }>[] = [
{
name: 'step1',
execute: async (data) => {
executeLog.push(`execute:${data.name}`)
return { success: true }
},
compensate: async (data) => {
executeLog.push(`compensate:${data.name}`)
},
data: { name: 'A' },
},
{
name: 'step2',
execute: async (data) => {
executeLog.push(`execute:${data.name}`)
return { success: true }
},
compensate: async (data) => {
executeLog.push(`compensate:${data.name}`)
},
data: { name: 'B' },
},
{
name: 'step3',
execute: async () => {
return { success: false, error: 'Step 3 failed' }
},
compensate: async () => {},
data: { name: 'C' },
},
]
const result = await orchestrator.execute(steps)
expect(result.success).toBe(false)
expect(result.failedStep).toBe('step3')
expect(result.error).toBe('Step 3 failed')
expect(result.completedSteps).toEqual(['step1', 'step2'])
// Compensation should be in reverse order
expect(executeLog).toEqual([
'execute:A',
'execute:B',
'compensate:B',
'compensate:A',
])
})
it('should save saga log on failure', async () => {
const steps: SagaStep<{}>[] = [
{
name: 'step1',
execute: async () => ({ success: true }),
compensate: async () => {},
data: {},
},
{
name: 'step2',
execute: async () => ({ success: false, error: 'Failed' }),
compensate: async () => {},
data: {},
},
]
const result = await orchestrator.execute(steps)
const log = await orchestrator.getSagaLog(result.sagaId)
expect(log?.state).toBe('compensated')
expect(log?.steps[0].state).toBe('compensated')
expect(log?.steps[1].state).toBe('failed')
})
it('should handle compensation error', async () => {
const consoleSpy = vi.spyOn(console, 'error').mockImplementation(() => {})
const steps: SagaStep<{}>[] = [
{
name: 'step1',
execute: async () => ({ success: true }),
compensate: async () => {
throw new Error('Compensation failed')
},
data: {},
},
{
name: 'step2',
execute: async () => ({ success: false, error: 'Failed' }),
compensate: async () => {},
data: {},
},
]
const result = await orchestrator.execute(steps)
expect(result.success).toBe(false)
const log = await orchestrator.getSagaLog(result.sagaId)
expect(log?.steps[0].state).toBe('failed')
expect(log?.steps[0].error).toContain('Compensation failed')
consoleSpy.mockRestore()
})
})
// ========================================================================
// 超时测试 | Timeout Tests
// ========================================================================
describe('timeout', () => {
it('should timeout on slow saga', async () => {
const fastOrchestrator = new SagaOrchestrator({
storage,
timeout: 50, // 50ms timeout
})
// Timeout is checked between steps, so we need 2 steps
const steps: SagaStep<{}>[] = [
{
name: 'slow-step',
execute: async () => {
await new Promise((resolve) => setTimeout(resolve, 100))
return { success: true }
},
compensate: async () => {},
data: {},
},
{
name: 'second-step',
execute: async () => {
return { success: true }
},
compensate: async () => {},
data: {},
},
]
const result = await fastOrchestrator.execute(steps)
expect(result.success).toBe(false)
expect(result.error).toContain('timed out')
})
})
// ========================================================================
// 分布式服务器测试 | Distributed Server Tests
// ========================================================================
describe('distributed servers', () => {
it('should track serverId for each step', async () => {
const steps: SagaStep<{}>[] = [
{
name: 'step1',
serverId: 'server-1',
execute: async () => ({ success: true }),
compensate: async () => {},
data: {},
},
{
name: 'step2',
serverId: 'server-2',
execute: async () => ({ success: true }),
compensate: async () => {},
data: {},
},
]
const result = await orchestrator.execute(steps)
const log = await orchestrator.getSagaLog(result.sagaId)
expect(log?.steps[0].serverId).toBe('server-1')
expect(log?.steps[1].serverId).toBe('server-2')
})
it('should include orchestrator serverId in metadata', async () => {
const steps: SagaStep<{}>[] = [
{
name: 'step1',
execute: async () => ({ success: true }),
compensate: async () => {},
data: {},
},
]
const result = await orchestrator.execute(steps)
const log = await orchestrator.getSagaLog(result.sagaId)
expect(log?.metadata?.orchestratorServerId).toBe('test-server')
})
})
// ========================================================================
// getSagaLog 测试 | getSagaLog Tests
// ========================================================================
describe('getSagaLog()', () => {
it('should return saga log by id', async () => {
const steps: SagaStep<{}>[] = [
{
name: 'step1',
execute: async () => ({ success: true }),
compensate: async () => {},
data: {},
},
]
const result = await orchestrator.execute(steps)
const log = await orchestrator.getSagaLog(result.sagaId)
expect(log).not.toBeNull()
expect(log?.id).toBe(result.sagaId)
})
it('should return null for non-existent saga', async () => {
const log = await orchestrator.getSagaLog('non-existent')
expect(log).toBeNull()
})
it('should return null without storage', async () => {
const noStorageOrchestrator = new SagaOrchestrator()
const log = await noStorageOrchestrator.getSagaLog('any-id')
expect(log).toBeNull()
})
})
// ========================================================================
// 恢复测试 | Recovery Tests
// ========================================================================
describe('recover()', () => {
it('should return 0 without storage', async () => {
const noStorageOrchestrator = new SagaOrchestrator()
const count = await noStorageOrchestrator.recover()
expect(count).toBe(0)
})
it('should return 0 when no pending sagas', async () => {
const count = await orchestrator.recover()
expect(count).toBe(0)
})
})
// ========================================================================
// 边界情况测试 | Edge Cases
// ========================================================================
describe('Edge Cases', () => {
it('should handle empty steps', async () => {
const result = await orchestrator.execute([])
expect(result.success).toBe(true)
expect(result.completedSteps).toEqual([])
})
it('should handle execute throwing exception', async () => {
const steps: SagaStep<{}>[] = [
{
name: 'throwing-step',
execute: async () => {
throw new Error('Unexpected error')
},
compensate: async () => {},
data: {},
},
]
const result = await orchestrator.execute(steps)
expect(result.success).toBe(false)
expect(result.error).toBe('Unexpected error')
})
it('should work without storage', async () => {
const noStorageOrchestrator = new SagaOrchestrator()
const steps: SagaStep<{}>[] = [
{
name: 'step1',
execute: async () => ({ success: true }),
compensate: async () => {},
data: {},
},
]
const result = await noStorageOrchestrator.execute(steps)
expect(result.success).toBe(true)
})
it('should track step timing', async () => {
const steps: SagaStep<{}>[] = [
{
name: 'step1',
execute: async () => {
await new Promise((resolve) => setTimeout(resolve, 50))
return { success: true }
},
compensate: async () => {},
data: {},
},
]
const result = await orchestrator.execute(steps)
const log = await orchestrator.getSagaLog(result.sagaId)
expect(log?.steps[0].startedAt).toBeGreaterThan(0)
expect(log?.steps[0].completedAt).toBeGreaterThan(log?.steps[0].startedAt!)
})
})
// ========================================================================
// 实际场景测试 | Real World Scenario Tests
// ========================================================================
describe('Real World Scenarios', () => {
it('should handle distributed purchase flow', async () => {
const inventory: Map<string, number> = new Map()
const wallet: Map<string, number> = new Map()
inventory.set('item-1', 10)
wallet.set('player-1', 1000)
const steps: SagaStep<{ playerId: string; itemId: string; price: number }>[] = [
{
name: 'deduct_currency',
serverId: 'wallet-server',
execute: async (data) => {
const balance = wallet.get(data.playerId) ?? 0
if (balance < data.price) {
return { success: false, error: 'Insufficient balance' }
}
wallet.set(data.playerId, balance - data.price)
return { success: true }
},
compensate: async (data) => {
const balance = wallet.get(data.playerId) ?? 0
wallet.set(data.playerId, balance + data.price)
},
data: { playerId: 'player-1', itemId: 'item-1', price: 100 },
},
{
name: 'reserve_item',
serverId: 'inventory-server',
execute: async (data) => {
const stock = inventory.get(data.itemId) ?? 0
if (stock < 1) {
return { success: false, error: 'Out of stock' }
}
inventory.set(data.itemId, stock - 1)
return { success: true }
},
compensate: async (data) => {
const stock = inventory.get(data.itemId) ?? 0
inventory.set(data.itemId, stock + 1)
},
data: { playerId: 'player-1', itemId: 'item-1', price: 100 },
},
]
const result = await orchestrator.execute(steps)
expect(result.success).toBe(true)
expect(wallet.get('player-1')).toBe(900)
expect(inventory.get('item-1')).toBe(9)
})
it('should rollback distributed purchase on inventory failure', async () => {
const wallet: Map<string, number> = new Map()
const inventory: Map<string, number> = new Map()
wallet.set('player-1', 1000)
inventory.set('item-1', 0) // Out of stock
const steps: SagaStep<{ playerId: string; itemId: string; price: number }>[] = [
{
name: 'deduct_currency',
execute: async (data) => {
const balance = wallet.get(data.playerId) ?? 0
wallet.set(data.playerId, balance - data.price)
return { success: true }
},
compensate: async (data) => {
const balance = wallet.get(data.playerId) ?? 0
wallet.set(data.playerId, balance + data.price)
},
data: { playerId: 'player-1', itemId: 'item-1', price: 100 },
},
{
name: 'reserve_item',
execute: async (data) => {
const stock = inventory.get(data.itemId) ?? 0
if (stock < 1) {
return { success: false, error: 'Out of stock' }
}
inventory.set(data.itemId, stock - 1)
return { success: true }
},
compensate: async (data) => {
const stock = inventory.get(data.itemId) ?? 0
inventory.set(data.itemId, stock + 1)
},
data: { playerId: 'player-1', itemId: 'item-1', price: 100 },
},
]
const result = await orchestrator.execute(steps)
expect(result.success).toBe(false)
expect(result.error).toBe('Out of stock')
expect(wallet.get('player-1')).toBe(1000) // Restored
expect(inventory.get('item-1')).toBe(0) // Unchanged
})
})
})

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/**
* @zh CurrencyOperation 单元测试
* @en CurrencyOperation unit tests
*/
import { describe, it, expect, beforeEach } from 'vitest'
import { CurrencyOperation, createCurrencyOperation, type ICurrencyProvider } from '../../src/operations/CurrencyOperation.js'
import { TransactionContext } from '../../src/core/TransactionContext.js'
import { MemoryStorage } from '../../src/storage/MemoryStorage.js'
import type { ITransactionContext } from '../../src/core/types.js'
// ============================================================================
// Mock Provider | 模拟数据提供者
// ============================================================================
class MockCurrencyProvider implements ICurrencyProvider {
private _balances: Map<string, Map<string, number>> = new Map()
setInitialBalance(playerId: string, currency: string, amount: number): void {
if (!this._balances.has(playerId)) {
this._balances.set(playerId, new Map())
}
this._balances.get(playerId)!.set(currency, amount)
}
async getBalance(playerId: string, currency: string): Promise<number> {
return this._balances.get(playerId)?.get(currency) ?? 0
}
async setBalance(playerId: string, currency: string, amount: number): Promise<void> {
if (!this._balances.has(playerId)) {
this._balances.set(playerId, new Map())
}
this._balances.get(playerId)!.set(currency, amount)
}
}
// ============================================================================
// Test Suite | 测试套件
// ============================================================================
describe('CurrencyOperation', () => {
let storage: MemoryStorage
let ctx: ITransactionContext
beforeEach(() => {
storage = new MemoryStorage()
ctx = new TransactionContext({ storage })
})
// ========================================================================
// 构造器测试 | Constructor Tests
// ========================================================================
describe('Constructor', () => {
it('should create with data', () => {
const op = new CurrencyOperation({
type: 'add',
playerId: 'player-1',
currency: 'gold',
amount: 100,
})
expect(op.name).toBe('currency')
expect(op.data.type).toBe('add')
expect(op.data.playerId).toBe('player-1')
expect(op.data.currency).toBe('gold')
expect(op.data.amount).toBe(100)
})
it('should use createCurrencyOperation factory', () => {
const op = createCurrencyOperation({
type: 'deduct',
playerId: 'player-2',
currency: 'diamond',
amount: 50,
})
expect(op).toBeInstanceOf(CurrencyOperation)
expect(op.data.type).toBe('deduct')
})
})
// ========================================================================
// 验证测试 | Validation Tests
// ========================================================================
describe('validate()', () => {
it('should fail validation with zero amount', async () => {
const op = new CurrencyOperation({
type: 'add',
playerId: 'player-1',
currency: 'gold',
amount: 0,
})
const isValid = await op.validate(ctx)
expect(isValid).toBe(false)
})
it('should fail validation with negative amount', async () => {
const op = new CurrencyOperation({
type: 'add',
playerId: 'player-1',
currency: 'gold',
amount: -10,
})
const isValid = await op.validate(ctx)
expect(isValid).toBe(false)
})
it('should pass validation for add with positive amount', async () => {
const op = new CurrencyOperation({
type: 'add',
playerId: 'player-1',
currency: 'gold',
amount: 100,
})
const isValid = await op.validate(ctx)
expect(isValid).toBe(true)
})
it('should fail validation for deduct with insufficient balance', async () => {
await storage.set('player:player-1:currency:gold', 50)
const op = new CurrencyOperation({
type: 'deduct',
playerId: 'player-1',
currency: 'gold',
amount: 100,
})
const isValid = await op.validate(ctx)
expect(isValid).toBe(false)
})
it('should pass validation for deduct with sufficient balance', async () => {
await storage.set('player:player-1:currency:gold', 150)
const op = new CurrencyOperation({
type: 'deduct',
playerId: 'player-1',
currency: 'gold',
amount: 100,
})
const isValid = await op.validate(ctx)
expect(isValid).toBe(true)
})
it('should use provider for validation', async () => {
const provider = new MockCurrencyProvider()
provider.setInitialBalance('player-1', 'gold', 200)
const op = new CurrencyOperation({
type: 'deduct',
playerId: 'player-1',
currency: 'gold',
amount: 150,
}).setProvider(provider)
const isValid = await op.validate(ctx)
expect(isValid).toBe(true)
})
})
// ========================================================================
// 执行测试 - 增加货币 | Execute Tests - Add Currency
// ========================================================================
describe('execute() - add', () => {
it('should add currency to empty balance', async () => {
const op = new CurrencyOperation({
type: 'add',
playerId: 'player-1',
currency: 'gold',
amount: 100,
})
const result = await op.execute(ctx)
expect(result.success).toBe(true)
expect(result.data?.beforeBalance).toBe(0)
expect(result.data?.afterBalance).toBe(100)
const balance = await storage.get<number>('player:player-1:currency:gold')
expect(balance).toBe(100)
})
it('should add currency to existing balance', async () => {
await storage.set('player:player-1:currency:gold', 50)
const op = new CurrencyOperation({
type: 'add',
playerId: 'player-1',
currency: 'gold',
amount: 100,
})
const result = await op.execute(ctx)
expect(result.success).toBe(true)
expect(result.data?.beforeBalance).toBe(50)
expect(result.data?.afterBalance).toBe(150)
})
it('should store context data for verification', async () => {
const op = new CurrencyOperation({
type: 'add',
playerId: 'player-1',
currency: 'gold',
amount: 100,
})
await op.execute(ctx)
expect(ctx.get('currency:player-1:gold:before')).toBe(0)
expect(ctx.get('currency:player-1:gold:after')).toBe(100)
})
})
// ========================================================================
// 执行测试 - 扣除货币 | Execute Tests - Deduct Currency
// ========================================================================
describe('execute() - deduct', () => {
it('should deduct currency from balance', async () => {
await storage.set('player:player-1:currency:gold', 200)
const op = new CurrencyOperation({
type: 'deduct',
playerId: 'player-1',
currency: 'gold',
amount: 75,
})
const result = await op.execute(ctx)
expect(result.success).toBe(true)
expect(result.data?.beforeBalance).toBe(200)
expect(result.data?.afterBalance).toBe(125)
const balance = await storage.get<number>('player:player-1:currency:gold')
expect(balance).toBe(125)
})
it('should fail deduct with insufficient balance', async () => {
await storage.set('player:player-1:currency:gold', 50)
const op = new CurrencyOperation({
type: 'deduct',
playerId: 'player-1',
currency: 'gold',
amount: 100,
})
const result = await op.execute(ctx)
expect(result.success).toBe(false)
expect(result.error).toBe('Insufficient balance')
expect(result.errorCode).toBe('INSUFFICIENT_BALANCE')
})
it('should deduct exact balance', async () => {
await storage.set('player:player-1:currency:gold', 100)
const op = new CurrencyOperation({
type: 'deduct',
playerId: 'player-1',
currency: 'gold',
amount: 100,
})
const result = await op.execute(ctx)
expect(result.success).toBe(true)
expect(result.data?.afterBalance).toBe(0)
})
})
// ========================================================================
// 补偿测试 | Compensate Tests
// ========================================================================
describe('compensate()', () => {
it('should restore balance after add', async () => {
const op = new CurrencyOperation({
type: 'add',
playerId: 'player-1',
currency: 'gold',
amount: 100,
})
await op.execute(ctx)
expect(await storage.get('player:player-1:currency:gold')).toBe(100)
await op.compensate(ctx)
expect(await storage.get('player:player-1:currency:gold')).toBe(0)
})
it('should restore balance after deduct', async () => {
await storage.set('player:player-1:currency:gold', 200)
const op = new CurrencyOperation({
type: 'deduct',
playerId: 'player-1',
currency: 'gold',
amount: 75,
})
await op.execute(ctx)
expect(await storage.get('player:player-1:currency:gold')).toBe(125)
await op.compensate(ctx)
expect(await storage.get('player:player-1:currency:gold')).toBe(200)
})
})
// ========================================================================
// Provider 测试 | Provider Tests
// ========================================================================
describe('Provider', () => {
it('should use provider for operations', async () => {
const provider = new MockCurrencyProvider()
provider.setInitialBalance('player-1', 'gold', 1000)
const op = new CurrencyOperation({
type: 'deduct',
playerId: 'player-1',
currency: 'gold',
amount: 300,
}).setProvider(provider)
const result = await op.execute(ctx)
expect(result.success).toBe(true)
expect(result.data?.beforeBalance).toBe(1000)
expect(result.data?.afterBalance).toBe(700)
const newBalance = await provider.getBalance('player-1', 'gold')
expect(newBalance).toBe(700)
})
it('should compensate using provider', async () => {
const provider = new MockCurrencyProvider()
provider.setInitialBalance('player-1', 'gold', 500)
const op = new CurrencyOperation({
type: 'add',
playerId: 'player-1',
currency: 'gold',
amount: 200,
}).setProvider(provider)
await op.execute(ctx)
expect(await provider.getBalance('player-1', 'gold')).toBe(700)
await op.compensate(ctx)
expect(await provider.getBalance('player-1', 'gold')).toBe(500)
})
it('should support method chaining with setProvider', () => {
const provider = new MockCurrencyProvider()
const op = new CurrencyOperation({
type: 'add',
playerId: 'player-1',
currency: 'gold',
amount: 100,
})
const result = op.setProvider(provider)
expect(result).toBe(op)
})
})
// ========================================================================
// 多货币类型测试 | Multiple Currency Types Tests
// ========================================================================
describe('Multiple Currency Types', () => {
it('should handle different currency types independently', async () => {
await storage.set('player:player-1:currency:gold', 1000)
await storage.set('player:player-1:currency:diamond', 50)
const goldOp = new CurrencyOperation({
type: 'deduct',
playerId: 'player-1',
currency: 'gold',
amount: 500,
})
const diamondOp = new CurrencyOperation({
type: 'add',
playerId: 'player-1',
currency: 'diamond',
amount: 10,
})
await goldOp.execute(ctx)
await diamondOp.execute(ctx)
expect(await storage.get('player:player-1:currency:gold')).toBe(500)
expect(await storage.get('player:player-1:currency:diamond')).toBe(60)
})
it('should handle multiple players independently', async () => {
await storage.set('player:player-1:currency:gold', 1000)
await storage.set('player:player-2:currency:gold', 500)
const op1 = new CurrencyOperation({
type: 'deduct',
playerId: 'player-1',
currency: 'gold',
amount: 300,
})
const op2 = new CurrencyOperation({
type: 'add',
playerId: 'player-2',
currency: 'gold',
amount: 300,
})
await op1.execute(ctx)
await op2.execute(ctx)
expect(await storage.get('player:player-1:currency:gold')).toBe(700)
expect(await storage.get('player:player-2:currency:gold')).toBe(800)
})
})
// ========================================================================
// 边界情况测试 | Edge Cases
// ========================================================================
describe('Edge Cases', () => {
it('should handle zero balance for new player', async () => {
const op = new CurrencyOperation({
type: 'add',
playerId: 'new-player',
currency: 'gold',
amount: 100,
})
const result = await op.execute(ctx)
expect(result.data?.beforeBalance).toBe(0)
})
it('should handle context without storage', async () => {
const noStorageCtx = new TransactionContext()
const op = new CurrencyOperation({
type: 'add',
playerId: 'player-1',
currency: 'gold',
amount: 100,
})
const result = await op.execute(noStorageCtx)
expect(result.success).toBe(true)
expect(result.data?.beforeBalance).toBe(0)
expect(result.data?.afterBalance).toBe(100)
})
it('should include reason in data', () => {
const op = new CurrencyOperation({
type: 'deduct',
playerId: 'player-1',
currency: 'gold',
amount: 100,
reason: 'purchase_item',
})
expect(op.data.reason).toBe('purchase_item')
})
})
})

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@@ -0,0 +1,624 @@
/**
* @zh InventoryOperation 单元测试
* @en InventoryOperation unit tests
*/
import { describe, it, expect, beforeEach } from 'vitest'
import {
InventoryOperation,
createInventoryOperation,
type IInventoryProvider,
type ItemData,
} from '../../src/operations/InventoryOperation.js'
import { TransactionContext } from '../../src/core/TransactionContext.js'
import { MemoryStorage } from '../../src/storage/MemoryStorage.js'
import type { ITransactionContext } from '../../src/core/types.js'
// ============================================================================
// Mock Provider | 模拟数据提供者
// ============================================================================
class MockInventoryProvider implements IInventoryProvider {
private _inventory: Map<string, Map<string, ItemData>> = new Map()
private _capacity: Map<string, number> = new Map()
addItem(playerId: string, itemId: string, item: ItemData): void {
if (!this._inventory.has(playerId)) {
this._inventory.set(playerId, new Map())
}
this._inventory.get(playerId)!.set(itemId, item)
}
setCapacity(playerId: string, capacity: number): void {
this._capacity.set(playerId, capacity)
}
async getItem(playerId: string, itemId: string): Promise<ItemData | null> {
return this._inventory.get(playerId)?.get(itemId) ?? null
}
async setItem(playerId: string, itemId: string, item: ItemData | null): Promise<void> {
if (!this._inventory.has(playerId)) {
this._inventory.set(playerId, new Map())
}
if (item) {
this._inventory.get(playerId)!.set(itemId, item)
} else {
this._inventory.get(playerId)!.delete(itemId)
}
}
async hasCapacity(playerId: string, count: number): Promise<boolean> {
const capacity = this._capacity.get(playerId)
if (capacity === undefined) return true
const currentCount = this._inventory.get(playerId)?.size ?? 0
return currentCount + count <= capacity
}
}
// ============================================================================
// Test Suite | 测试套件
// ============================================================================
describe('InventoryOperation', () => {
let storage: MemoryStorage
let ctx: ITransactionContext
beforeEach(() => {
storage = new MemoryStorage()
ctx = new TransactionContext({ storage })
})
// ========================================================================
// 构造器测试 | Constructor Tests
// ========================================================================
describe('Constructor', () => {
it('should create with data', () => {
const op = new InventoryOperation({
type: 'add',
playerId: 'player-1',
itemId: 'sword-001',
quantity: 1,
})
expect(op.name).toBe('inventory')
expect(op.data.type).toBe('add')
expect(op.data.playerId).toBe('player-1')
expect(op.data.itemId).toBe('sword-001')
expect(op.data.quantity).toBe(1)
})
it('should use createInventoryOperation factory', () => {
const op = createInventoryOperation({
type: 'remove',
playerId: 'player-2',
itemId: 'potion-hp',
quantity: 5,
})
expect(op).toBeInstanceOf(InventoryOperation)
expect(op.data.type).toBe('remove')
})
})
// ========================================================================
// 验证测试 | Validation Tests
// ========================================================================
describe('validate()', () => {
it('should fail validation with zero quantity', async () => {
const op = new InventoryOperation({
type: 'add',
playerId: 'player-1',
itemId: 'sword',
quantity: 0,
})
const isValid = await op.validate(ctx)
expect(isValid).toBe(false)
})
it('should fail validation with negative quantity', async () => {
const op = new InventoryOperation({
type: 'add',
playerId: 'player-1',
itemId: 'sword',
quantity: -1,
})
const isValid = await op.validate(ctx)
expect(isValid).toBe(false)
})
it('should pass validation for add with positive quantity', async () => {
const op = new InventoryOperation({
type: 'add',
playerId: 'player-1',
itemId: 'sword',
quantity: 1,
})
const isValid = await op.validate(ctx)
expect(isValid).toBe(true)
})
it('should fail validation for remove with insufficient quantity', async () => {
await storage.set('player:player-1:inventory:sword', {
itemId: 'sword',
quantity: 2,
})
const op = new InventoryOperation({
type: 'remove',
playerId: 'player-1',
itemId: 'sword',
quantity: 5,
})
const isValid = await op.validate(ctx)
expect(isValid).toBe(false)
})
it('should fail validation for remove with non-existent item', async () => {
const op = new InventoryOperation({
type: 'remove',
playerId: 'player-1',
itemId: 'nonexistent',
quantity: 1,
})
const isValid = await op.validate(ctx)
expect(isValid).toBe(false)
})
it('should pass validation for remove with sufficient quantity', async () => {
await storage.set('player:player-1:inventory:sword', {
itemId: 'sword',
quantity: 10,
})
const op = new InventoryOperation({
type: 'remove',
playerId: 'player-1',
itemId: 'sword',
quantity: 5,
})
const isValid = await op.validate(ctx)
expect(isValid).toBe(true)
})
it('should check capacity with provider', async () => {
const provider = new MockInventoryProvider()
provider.setCapacity('player-1', 1)
provider.addItem('player-1', 'existing', { itemId: 'existing', quantity: 1 })
const op = new InventoryOperation({
type: 'add',
playerId: 'player-1',
itemId: 'new-item',
quantity: 1,
}).setProvider(provider)
const isValid = await op.validate(ctx)
expect(isValid).toBe(false)
})
})
// ========================================================================
// 执行测试 - 添加物品 | Execute Tests - Add Item
// ========================================================================
describe('execute() - add', () => {
it('should add new item to empty inventory', async () => {
const op = new InventoryOperation({
type: 'add',
playerId: 'player-1',
itemId: 'sword',
quantity: 1,
})
const result = await op.execute(ctx)
expect(result.success).toBe(true)
expect(result.data?.beforeItem).toBeUndefined()
expect(result.data?.afterItem).toEqual({
itemId: 'sword',
quantity: 1,
properties: undefined,
})
const item = await storage.get<ItemData>('player:player-1:inventory:sword')
expect(item?.quantity).toBe(1)
})
it('should stack items when adding to existing', async () => {
await storage.set('player:player-1:inventory:potion', {
itemId: 'potion',
quantity: 5,
})
const op = new InventoryOperation({
type: 'add',
playerId: 'player-1',
itemId: 'potion',
quantity: 3,
})
const result = await op.execute(ctx)
expect(result.success).toBe(true)
expect(result.data?.beforeItem?.quantity).toBe(5)
expect(result.data?.afterItem?.quantity).toBe(8)
})
it('should add item with properties', async () => {
const op = new InventoryOperation({
type: 'add',
playerId: 'player-1',
itemId: 'enchanted-sword',
quantity: 1,
properties: { damage: 100, enchant: 'fire' },
})
const result = await op.execute(ctx)
expect(result.success).toBe(true)
expect(result.data?.afterItem?.properties).toEqual({
damage: 100,
enchant: 'fire',
})
})
it('should store context data', async () => {
const op = new InventoryOperation({
type: 'add',
playerId: 'player-1',
itemId: 'sword',
quantity: 1,
})
await op.execute(ctx)
expect(ctx.get('inventory:player-1:sword:before')).toBeNull()
expect(ctx.get('inventory:player-1:sword:after')).toEqual({
itemId: 'sword',
quantity: 1,
properties: undefined,
})
})
})
// ========================================================================
// 执行测试 - 移除物品 | Execute Tests - Remove Item
// ========================================================================
describe('execute() - remove', () => {
it('should remove partial quantity', async () => {
await storage.set('player:player-1:inventory:potion', {
itemId: 'potion',
quantity: 10,
})
const op = new InventoryOperation({
type: 'remove',
playerId: 'player-1',
itemId: 'potion',
quantity: 3,
})
const result = await op.execute(ctx)
expect(result.success).toBe(true)
expect(result.data?.beforeItem?.quantity).toBe(10)
expect(result.data?.afterItem?.quantity).toBe(7)
const item = await storage.get<ItemData>('player:player-1:inventory:potion')
expect(item?.quantity).toBe(7)
})
it('should delete item when removing all quantity', async () => {
await storage.set('player:player-1:inventory:sword', {
itemId: 'sword',
quantity: 1,
})
const op = new InventoryOperation({
type: 'remove',
playerId: 'player-1',
itemId: 'sword',
quantity: 1,
})
const result = await op.execute(ctx)
expect(result.success).toBe(true)
expect(result.data?.afterItem).toBeUndefined()
const item = await storage.get('player:player-1:inventory:sword')
expect(item).toBeNull()
})
it('should fail when item not found', async () => {
const op = new InventoryOperation({
type: 'remove',
playerId: 'player-1',
itemId: 'nonexistent',
quantity: 1,
})
const result = await op.execute(ctx)
expect(result.success).toBe(false)
expect(result.error).toBe('Insufficient item quantity')
expect(result.errorCode).toBe('INSUFFICIENT_ITEM')
})
it('should fail when quantity insufficient', async () => {
await storage.set('player:player-1:inventory:potion', {
itemId: 'potion',
quantity: 2,
})
const op = new InventoryOperation({
type: 'remove',
playerId: 'player-1',
itemId: 'potion',
quantity: 5,
})
const result = await op.execute(ctx)
expect(result.success).toBe(false)
expect(result.errorCode).toBe('INSUFFICIENT_ITEM')
})
})
// ========================================================================
// 执行测试 - 更新物品 | Execute Tests - Update Item
// ========================================================================
describe('execute() - update', () => {
it('should update item properties', async () => {
await storage.set('player:player-1:inventory:sword', {
itemId: 'sword',
quantity: 1,
properties: { damage: 10 },
})
const op = new InventoryOperation({
type: 'update',
playerId: 'player-1',
itemId: 'sword',
quantity: 0, // keep existing
properties: { damage: 20, enchant: 'ice' },
})
const result = await op.execute(ctx)
expect(result.success).toBe(true)
expect(result.data?.afterItem?.properties).toEqual({
damage: 20,
enchant: 'ice',
})
expect(result.data?.afterItem?.quantity).toBe(1)
})
it('should update item quantity', async () => {
await storage.set('player:player-1:inventory:potion', {
itemId: 'potion',
quantity: 5,
})
const op = new InventoryOperation({
type: 'update',
playerId: 'player-1',
itemId: 'potion',
quantity: 10,
})
const result = await op.execute(ctx)
expect(result.success).toBe(true)
expect(result.data?.afterItem?.quantity).toBe(10)
})
it('should fail when updating non-existent item', async () => {
const op = new InventoryOperation({
type: 'update',
playerId: 'player-1',
itemId: 'nonexistent',
quantity: 1,
})
const result = await op.execute(ctx)
expect(result.success).toBe(false)
expect(result.error).toBe('Item not found')
expect(result.errorCode).toBe('ITEM_NOT_FOUND')
})
})
// ========================================================================
// 补偿测试 | Compensate Tests
// ========================================================================
describe('compensate()', () => {
it('should restore state after add', async () => {
const op = new InventoryOperation({
type: 'add',
playerId: 'player-1',
itemId: 'sword',
quantity: 1,
})
await op.execute(ctx)
expect(await storage.get('player:player-1:inventory:sword')).not.toBeNull()
await op.compensate(ctx)
expect(await storage.get('player:player-1:inventory:sword')).toBeNull()
})
it('should restore state after remove', async () => {
await storage.set('player:player-1:inventory:potion', {
itemId: 'potion',
quantity: 5,
})
const op = new InventoryOperation({
type: 'remove',
playerId: 'player-1',
itemId: 'potion',
quantity: 3,
})
await op.execute(ctx)
const afterRemove = await storage.get<ItemData>('player:player-1:inventory:potion')
expect(afterRemove?.quantity).toBe(2)
await op.compensate(ctx)
const afterCompensate = await storage.get<ItemData>('player:player-1:inventory:potion')
expect(afterCompensate?.quantity).toBe(5)
})
it('should restore deleted item after remove all', async () => {
await storage.set('player:player-1:inventory:sword', {
itemId: 'sword',
quantity: 1,
})
const op = new InventoryOperation({
type: 'remove',
playerId: 'player-1',
itemId: 'sword',
quantity: 1,
})
await op.execute(ctx)
expect(await storage.get('player:player-1:inventory:sword')).toBeNull()
await op.compensate(ctx)
const restored = await storage.get<ItemData>('player:player-1:inventory:sword')
expect(restored?.quantity).toBe(1)
})
it('should restore state after update', async () => {
await storage.set('player:player-1:inventory:sword', {
itemId: 'sword',
quantity: 1,
properties: { damage: 10 },
})
const op = new InventoryOperation({
type: 'update',
playerId: 'player-1',
itemId: 'sword',
quantity: 0,
properties: { damage: 50 },
})
await op.execute(ctx)
await op.compensate(ctx)
const restored = await storage.get<ItemData>('player:player-1:inventory:sword')
expect(restored?.properties).toEqual({ damage: 10 })
})
})
// ========================================================================
// Provider 测试 | Provider Tests
// ========================================================================
describe('Provider', () => {
it('should use provider for operations', async () => {
const provider = new MockInventoryProvider()
provider.addItem('player-1', 'sword', { itemId: 'sword', quantity: 1 })
const op = new InventoryOperation({
type: 'add',
playerId: 'player-1',
itemId: 'sword',
quantity: 2,
}).setProvider(provider)
const result = await op.execute(ctx)
expect(result.success).toBe(true)
expect(result.data?.afterItem?.quantity).toBe(3)
const item = await provider.getItem('player-1', 'sword')
expect(item?.quantity).toBe(3)
})
it('should compensate using provider', async () => {
const provider = new MockInventoryProvider()
provider.addItem('player-1', 'potion', { itemId: 'potion', quantity: 10 })
const op = new InventoryOperation({
type: 'remove',
playerId: 'player-1',
itemId: 'potion',
quantity: 3,
}).setProvider(provider)
await op.execute(ctx)
expect((await provider.getItem('player-1', 'potion'))?.quantity).toBe(7)
await op.compensate(ctx)
expect((await provider.getItem('player-1', 'potion'))?.quantity).toBe(10)
})
})
// ========================================================================
// 边界情况测试 | Edge Cases
// ========================================================================
describe('Edge Cases', () => {
it('should handle context without storage', async () => {
const noStorageCtx = new TransactionContext()
const op = new InventoryOperation({
type: 'add',
playerId: 'player-1',
itemId: 'sword',
quantity: 1,
})
const result = await op.execute(noStorageCtx)
expect(result.success).toBe(true)
})
it('should include reason in data', () => {
const op = new InventoryOperation({
type: 'add',
playerId: 'player-1',
itemId: 'reward-sword',
quantity: 1,
reason: 'quest_reward',
})
expect(op.data.reason).toBe('quest_reward')
})
it('should preserve item properties when stacking', async () => {
await storage.set('player:player-1:inventory:potion', {
itemId: 'potion',
quantity: 5,
properties: { quality: 'rare' },
})
const op = new InventoryOperation({
type: 'add',
playerId: 'player-1',
itemId: 'potion',
quantity: 3,
})
const result = await op.execute(ctx)
expect(result.data?.afterItem?.properties).toEqual({ quality: 'rare' })
expect(result.data?.afterItem?.quantity).toBe(8)
})
})
})

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/**
* @zh TradeOperation 单元测试
* @en TradeOperation unit tests
*/
import { describe, it, expect, beforeEach } from 'vitest'
import { TradeOperation, createTradeOperation, type ITradeProvider } from '../../src/operations/TradeOperation.js'
import { TransactionContext } from '../../src/core/TransactionContext.js'
import { MemoryStorage } from '../../src/storage/MemoryStorage.js'
import type { ITransactionContext } from '../../src/core/types.js'
import type { ICurrencyProvider } from '../../src/operations/CurrencyOperation.js'
import type { IInventoryProvider, ItemData } from '../../src/operations/InventoryOperation.js'
// ============================================================================
// Mock Providers | 模拟数据提供者
// ============================================================================
class MockCurrencyProvider implements ICurrencyProvider {
private _balances: Map<string, Map<string, number>> = new Map()
initBalance(playerId: string, currency: string, amount: number): void {
if (!this._balances.has(playerId)) {
this._balances.set(playerId, new Map())
}
this._balances.get(playerId)!.set(currency, amount)
}
async getBalance(playerId: string, currency: string): Promise<number> {
return this._balances.get(playerId)?.get(currency) ?? 0
}
async setBalance(playerId: string, currency: string, amount: number): Promise<void> {
if (!this._balances.has(playerId)) {
this._balances.set(playerId, new Map())
}
this._balances.get(playerId)!.set(currency, amount)
}
}
class MockInventoryProvider implements IInventoryProvider {
private _inventory: Map<string, Map<string, ItemData>> = new Map()
addItem(playerId: string, itemId: string, item: ItemData): void {
if (!this._inventory.has(playerId)) {
this._inventory.set(playerId, new Map())
}
this._inventory.get(playerId)!.set(itemId, item)
}
async getItem(playerId: string, itemId: string): Promise<ItemData | null> {
return this._inventory.get(playerId)?.get(itemId) ?? null
}
async setItem(playerId: string, itemId: string, item: ItemData | null): Promise<void> {
if (!this._inventory.has(playerId)) {
this._inventory.set(playerId, new Map())
}
if (item) {
this._inventory.get(playerId)!.set(itemId, item)
} else {
this._inventory.get(playerId)!.delete(itemId)
}
}
}
// ============================================================================
// Test Suite | 测试套件
// ============================================================================
describe('TradeOperation', () => {
let storage: MemoryStorage
let ctx: ITransactionContext
beforeEach(() => {
storage = new MemoryStorage()
ctx = new TransactionContext({ storage })
})
// ========================================================================
// 构造器测试 | Constructor Tests
// ========================================================================
describe('Constructor', () => {
it('should create with data', () => {
const op = new TradeOperation({
tradeId: 'trade-001',
partyA: {
playerId: 'player-1',
items: [{ itemId: 'sword', quantity: 1 }],
},
partyB: {
playerId: 'player-2',
currencies: [{ currency: 'gold', amount: 1000 }],
},
})
expect(op.name).toBe('trade')
expect(op.data.tradeId).toBe('trade-001')
expect(op.data.partyA.playerId).toBe('player-1')
expect(op.data.partyB.playerId).toBe('player-2')
})
it('should use createTradeOperation factory', () => {
const op = createTradeOperation({
tradeId: 'trade-002',
partyA: { playerId: 'player-1' },
partyB: { playerId: 'player-2' },
})
expect(op).toBeInstanceOf(TradeOperation)
})
})
// ========================================================================
// 验证测试 | Validation Tests
// ========================================================================
describe('validate()', () => {
it('should validate item trade', async () => {
// Player 1 has sword, Player 2 has gold
await storage.set('player:player-1:inventory:sword', {
itemId: 'sword',
quantity: 1,
})
await storage.set('player:player-2:currency:gold', 1000)
const op = new TradeOperation({
tradeId: 'trade-001',
partyA: {
playerId: 'player-1',
items: [{ itemId: 'sword', quantity: 1 }],
},
partyB: {
playerId: 'player-2',
currencies: [{ currency: 'gold', amount: 1000 }],
},
})
const isValid = await op.validate(ctx)
expect(isValid).toBe(true)
})
it('should fail validation when party A lacks items', async () => {
await storage.set('player:player-2:currency:gold', 1000)
const op = new TradeOperation({
tradeId: 'trade-001',
partyA: {
playerId: 'player-1',
items: [{ itemId: 'sword', quantity: 1 }],
},
partyB: {
playerId: 'player-2',
currencies: [{ currency: 'gold', amount: 1000 }],
},
})
const isValid = await op.validate(ctx)
expect(isValid).toBe(false)
})
it('should fail validation when party B lacks currency', async () => {
await storage.set('player:player-1:inventory:sword', {
itemId: 'sword',
quantity: 1,
})
await storage.set('player:player-2:currency:gold', 500) // Not enough
const op = new TradeOperation({
tradeId: 'trade-001',
partyA: {
playerId: 'player-1',
items: [{ itemId: 'sword', quantity: 1 }],
},
partyB: {
playerId: 'player-2',
currencies: [{ currency: 'gold', amount: 1000 }],
},
})
const isValid = await op.validate(ctx)
expect(isValid).toBe(false)
})
})
// ========================================================================
// 执行测试 - 物品换货币 | Execute Tests - Item for Currency
// ========================================================================
describe('execute() - item for currency', () => {
it('should trade item for currency', async () => {
await storage.set('player:player-1:inventory:sword', {
itemId: 'sword',
quantity: 1,
})
await storage.set('player:player-2:currency:gold', 1000)
const op = new TradeOperation({
tradeId: 'trade-001',
partyA: {
playerId: 'player-1',
items: [{ itemId: 'sword', quantity: 1 }],
},
partyB: {
playerId: 'player-2',
currencies: [{ currency: 'gold', amount: 1000 }],
},
})
const result = await op.execute(ctx)
expect(result.success).toBe(true)
expect(result.data?.tradeId).toBe('trade-001')
expect(result.data?.completed).toBe(true)
// Player 1: no sword, got gold
expect(await storage.get('player:player-1:inventory:sword')).toBeNull()
expect(await storage.get('player:player-1:currency:gold')).toBe(1000)
// Player 2: got sword, no gold
const p2Sword = await storage.get<ItemData>('player:player-2:inventory:sword')
expect(p2Sword?.quantity).toBe(1)
expect(await storage.get('player:player-2:currency:gold')).toBe(0)
})
})
// ========================================================================
// 执行测试 - 物品换物品 | Execute Tests - Item for Item
// ========================================================================
describe('execute() - item for item', () => {
it('should trade items between players', async () => {
await storage.set('player:player-1:inventory:sword', {
itemId: 'sword',
quantity: 1,
})
await storage.set('player:player-2:inventory:shield', {
itemId: 'shield',
quantity: 1,
})
const op = new TradeOperation({
tradeId: 'trade-002',
partyA: {
playerId: 'player-1',
items: [{ itemId: 'sword', quantity: 1 }],
},
partyB: {
playerId: 'player-2',
items: [{ itemId: 'shield', quantity: 1 }],
},
})
const result = await op.execute(ctx)
expect(result.success).toBe(true)
// Player 1: got shield, no sword
expect(await storage.get('player:player-1:inventory:sword')).toBeNull()
const p1Shield = await storage.get<ItemData>('player:player-1:inventory:shield')
expect(p1Shield?.quantity).toBe(1)
// Player 2: got sword, no shield
expect(await storage.get('player:player-2:inventory:shield')).toBeNull()
const p2Sword = await storage.get<ItemData>('player:player-2:inventory:sword')
expect(p2Sword?.quantity).toBe(1)
})
})
// ========================================================================
// 执行测试 - 货币换货币 | Execute Tests - Currency for Currency
// ========================================================================
describe('execute() - currency for currency', () => {
it('should trade currencies between players', async () => {
await storage.set('player:player-1:currency:gold', 1000)
await storage.set('player:player-2:currency:diamond', 100)
const op = new TradeOperation({
tradeId: 'trade-003',
partyA: {
playerId: 'player-1',
currencies: [{ currency: 'gold', amount: 1000 }],
},
partyB: {
playerId: 'player-2',
currencies: [{ currency: 'diamond', amount: 100 }],
},
})
const result = await op.execute(ctx)
expect(result.success).toBe(true)
// Player 1: no gold, got diamonds
expect(await storage.get('player:player-1:currency:gold')).toBe(0)
expect(await storage.get('player:player-1:currency:diamond')).toBe(100)
// Player 2: got gold, no diamonds
expect(await storage.get('player:player-2:currency:gold')).toBe(1000)
expect(await storage.get('player:player-2:currency:diamond')).toBe(0)
})
})
// ========================================================================
// 执行测试 - 复杂交易 | Execute Tests - Complex Trade
// ========================================================================
describe('execute() - complex trade', () => {
it('should handle multiple items and currencies', async () => {
// Setup
await storage.set('player:player-1:inventory:sword', { itemId: 'sword', quantity: 2 })
await storage.set('player:player-1:inventory:potion', { itemId: 'potion', quantity: 10 })
await storage.set('player:player-2:currency:gold', 5000)
await storage.set('player:player-2:currency:diamond', 50)
const op = new TradeOperation({
tradeId: 'trade-004',
partyA: {
playerId: 'player-1',
items: [
{ itemId: 'sword', quantity: 1 },
{ itemId: 'potion', quantity: 5 },
],
},
partyB: {
playerId: 'player-2',
currencies: [
{ currency: 'gold', amount: 2000 },
{ currency: 'diamond', amount: 20 },
],
},
})
const result = await op.execute(ctx)
expect(result.success).toBe(true)
// Player 1
const p1Sword = await storage.get<ItemData>('player:player-1:inventory:sword')
expect(p1Sword?.quantity).toBe(1) // Had 2, gave 1
const p1Potion = await storage.get<ItemData>('player:player-1:inventory:potion')
expect(p1Potion?.quantity).toBe(5) // Had 10, gave 5
expect(await storage.get('player:player-1:currency:gold')).toBe(2000)
expect(await storage.get('player:player-1:currency:diamond')).toBe(20)
// Player 2
const p2Sword = await storage.get<ItemData>('player:player-2:inventory:sword')
expect(p2Sword?.quantity).toBe(1)
const p2Potion = await storage.get<ItemData>('player:player-2:inventory:potion')
expect(p2Potion?.quantity).toBe(5)
expect(await storage.get('player:player-2:currency:gold')).toBe(3000) // Had 5000, gave 2000
expect(await storage.get('player:player-2:currency:diamond')).toBe(30) // Had 50, gave 20
})
})
// ========================================================================
// 失败和补偿测试 | Failure and Compensation Tests
// ========================================================================
describe('failure and compensation', () => {
it('should rollback on partial failure', async () => {
// Player 1 has sword, Player 2 does NOT have enough gold
await storage.set('player:player-1:inventory:sword', {
itemId: 'sword',
quantity: 1,
})
await storage.set('player:player-2:currency:gold', 500) // Not enough
const op = new TradeOperation({
tradeId: 'trade-fail',
partyA: {
playerId: 'player-1',
items: [{ itemId: 'sword', quantity: 1 }],
},
partyB: {
playerId: 'player-2',
currencies: [{ currency: 'gold', amount: 1000 }],
},
})
const result = await op.execute(ctx)
expect(result.success).toBe(false)
expect(result.errorCode).toBe('TRADE_FAILED')
// Everything should be restored
const p1Sword = await storage.get<ItemData>('player:player-1:inventory:sword')
expect(p1Sword?.quantity).toBe(1) // Restored
expect(await storage.get('player:player-2:inventory:sword')).toBeNull()
})
it('should compensate after successful execute', async () => {
await storage.set('player:player-1:inventory:sword', {
itemId: 'sword',
quantity: 1,
})
await storage.set('player:player-2:currency:gold', 1000)
const op = new TradeOperation({
tradeId: 'trade-compensate',
partyA: {
playerId: 'player-1',
items: [{ itemId: 'sword', quantity: 1 }],
},
partyB: {
playerId: 'player-2',
currencies: [{ currency: 'gold', amount: 1000 }],
},
})
await op.execute(ctx)
// Verify trade happened
expect(await storage.get('player:player-1:inventory:sword')).toBeNull()
expect(await storage.get('player:player-1:currency:gold')).toBe(1000)
// Compensate
await op.compensate(ctx)
// Everything should be restored
const p1Sword = await storage.get<ItemData>('player:player-1:inventory:sword')
expect(p1Sword?.quantity).toBe(1)
expect(await storage.get('player:player-1:currency:gold')).toBe(0)
expect(await storage.get('player:player-2:inventory:sword')).toBeNull()
expect(await storage.get('player:player-2:currency:gold')).toBe(1000)
})
})
// ========================================================================
// Provider 测试 | Provider Tests
// ========================================================================
describe('Provider', () => {
it('should use providers for trade', async () => {
const currencyProvider = new MockCurrencyProvider()
const inventoryProvider = new MockInventoryProvider()
currencyProvider.initBalance('player-1', 'gold', 0)
currencyProvider.initBalance('player-2', 'gold', 1000)
inventoryProvider.addItem('player-1', 'sword', { itemId: 'sword', quantity: 1 })
const provider: ITradeProvider = {
currencyProvider,
inventoryProvider,
}
const op = new TradeOperation({
tradeId: 'trade-provider',
partyA: {
playerId: 'player-1',
items: [{ itemId: 'sword', quantity: 1 }],
},
partyB: {
playerId: 'player-2',
currencies: [{ currency: 'gold', amount: 1000 }],
},
}).setProvider(provider)
const result = await op.execute(ctx)
expect(result.success).toBe(true)
// Verify using providers
expect(await inventoryProvider.getItem('player-1', 'sword')).toBeNull()
expect(await currencyProvider.getBalance('player-1', 'gold')).toBe(1000)
expect((await inventoryProvider.getItem('player-2', 'sword'))?.quantity).toBe(1)
expect(await currencyProvider.getBalance('player-2', 'gold')).toBe(0)
})
})
// ========================================================================
// 边界情况测试 | Edge Cases
// ========================================================================
describe('Edge Cases', () => {
it('should handle empty trade', async () => {
const op = new TradeOperation({
tradeId: 'trade-empty',
partyA: { playerId: 'player-1' },
partyB: { playerId: 'player-2' },
})
const result = await op.execute(ctx)
expect(result.success).toBe(true)
expect(result.data?.completed).toBe(true)
})
it('should handle one-sided gift', async () => {
await storage.set('player:player-1:inventory:gift', {
itemId: 'gift',
quantity: 1,
})
const op = new TradeOperation({
tradeId: 'trade-gift',
partyA: {
playerId: 'player-1',
items: [{ itemId: 'gift', quantity: 1 }],
},
partyB: { playerId: 'player-2' }, // Gives nothing
})
const result = await op.execute(ctx)
expect(result.success).toBe(true)
expect(await storage.get('player:player-1:inventory:gift')).toBeNull()
const p2Gift = await storage.get<ItemData>('player:player-2:inventory:gift')
expect(p2Gift?.quantity).toBe(1)
})
it('should include reason in data', () => {
const op = new TradeOperation({
tradeId: 'trade-reason',
partyA: { playerId: 'player-1' },
partyB: { playerId: 'player-2' },
reason: 'player_trade',
})
expect(op.data.reason).toBe('player_trade')
})
})
})

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/**
* @zh MemoryStorage 单元测试
* @en MemoryStorage unit tests
*/
import { describe, it, expect, beforeEach } from 'vitest'
import { MemoryStorage } from '../../src/storage/MemoryStorage.js'
import type { TransactionLog } from '../../src/core/types.js'
describe('MemoryStorage', () => {
let storage: MemoryStorage
beforeEach(() => {
storage = new MemoryStorage()
})
// ========================================================================
// 分布式锁测试 | Distributed Lock Tests
// ========================================================================
describe('Distributed Lock', () => {
it('should acquire lock successfully', async () => {
const token = await storage.acquireLock('test-key', 5000)
expect(token).not.toBeNull()
expect(typeof token).toBe('string')
})
it('should fail to acquire same lock twice', async () => {
const token1 = await storage.acquireLock('test-key', 5000)
const token2 = await storage.acquireLock('test-key', 5000)
expect(token1).not.toBeNull()
expect(token2).toBeNull()
})
it('should release lock with correct token', async () => {
const token = await storage.acquireLock('test-key', 5000)
expect(token).not.toBeNull()
const released = await storage.releaseLock('test-key', token!)
expect(released).toBe(true)
})
it('should fail to release lock with wrong token', async () => {
const token = await storage.acquireLock('test-key', 5000)
expect(token).not.toBeNull()
const released = await storage.releaseLock('test-key', 'wrong-token')
expect(released).toBe(false)
})
it('should allow re-acquiring after release', async () => {
const token1 = await storage.acquireLock('test-key', 5000)
await storage.releaseLock('test-key', token1!)
const token2 = await storage.acquireLock('test-key', 5000)
expect(token2).not.toBeNull()
})
it('should expire lock after TTL', async () => {
await storage.acquireLock('test-key', 50) // 50ms TTL
// 等待锁过期
await new Promise((resolve) => setTimeout(resolve, 100))
const token2 = await storage.acquireLock('test-key', 5000)
expect(token2).not.toBeNull()
})
})
// ========================================================================
// 事务日志测试 | Transaction Log Tests
// ========================================================================
describe('Transaction Log', () => {
const createMockLog = (id: string): TransactionLog => ({
id,
state: 'pending',
operations: [],
createdAt: Date.now(),
updatedAt: Date.now(),
})
it('should save and retrieve transaction', async () => {
const log = createMockLog('tx-1')
await storage.saveTransaction(log)
const retrieved = await storage.getTransaction('tx-1')
expect(retrieved).not.toBeNull()
expect(retrieved!.id).toBe('tx-1')
})
it('should return null for non-existent transaction', async () => {
const retrieved = await storage.getTransaction('non-existent')
expect(retrieved).toBeNull()
})
it('should update transaction state', async () => {
const log = createMockLog('tx-1')
await storage.saveTransaction(log)
await storage.updateTransactionState('tx-1', 'committed')
const retrieved = await storage.getTransaction('tx-1')
expect(retrieved!.state).toBe('committed')
})
it('should update operation state', async () => {
const log: TransactionLog = {
...createMockLog('tx-1'),
operations: [
{ name: 'op1', state: 'pending' },
{ name: 'op2', state: 'pending' },
],
}
await storage.saveTransaction(log)
await storage.updateOperationState('tx-1', 0, 'completed')
await storage.updateOperationState('tx-1', 1, 'failed', 'Some error')
const retrieved = await storage.getTransaction('tx-1')
expect(retrieved!.operations[0].state).toBe('completed')
expect(retrieved!.operations[1].state).toBe('failed')
expect(retrieved!.operations[1].error).toBe('Some error')
})
it('should delete transaction', async () => {
const log = createMockLog('tx-1')
await storage.saveTransaction(log)
await storage.deleteTransaction('tx-1')
const retrieved = await storage.getTransaction('tx-1')
expect(retrieved).toBeNull()
})
it('should get pending transactions', async () => {
await storage.saveTransaction({ ...createMockLog('tx-1'), state: 'pending' })
await storage.saveTransaction({ ...createMockLog('tx-2'), state: 'executing' })
await storage.saveTransaction({ ...createMockLog('tx-3'), state: 'committed' })
const pending = await storage.getPendingTransactions()
expect(pending.length).toBe(2) // pending and executing
expect(pending.map((p) => p.id).sort()).toEqual(['tx-1', 'tx-2'])
})
it('should filter pending transactions by serverId', async () => {
await storage.saveTransaction({
...createMockLog('tx-1'),
state: 'pending',
metadata: { serverId: 'server-1' },
})
await storage.saveTransaction({
...createMockLog('tx-2'),
state: 'pending',
metadata: { serverId: 'server-2' },
})
const pending = await storage.getPendingTransactions('server-1')
expect(pending.length).toBe(1)
expect(pending[0].id).toBe('tx-1')
})
})
// ========================================================================
// 数据操作测试 | Data Operations Tests
// ========================================================================
describe('Data Operations', () => {
it('should set and get data', async () => {
await storage.set('key1', { value: 123 })
const data = await storage.get<{ value: number }>('key1')
expect(data).toEqual({ value: 123 })
})
it('should return null for non-existent key', async () => {
const data = await storage.get('non-existent')
expect(data).toBeNull()
})
it('should delete data', async () => {
await storage.set('key1', { value: 123 })
const deleted = await storage.delete('key1')
expect(deleted).toBe(true)
expect(await storage.get('key1')).toBeNull()
})
it('should return false when deleting non-existent key', async () => {
const deleted = await storage.delete('non-existent')
expect(deleted).toBe(false)
})
it('should expire data after TTL', async () => {
await storage.set('key1', { value: 123 }, 50) // 50ms TTL
// 数据应该存在
expect(await storage.get('key1')).toEqual({ value: 123 })
// 等待过期
await new Promise((resolve) => setTimeout(resolve, 100))
expect(await storage.get('key1')).toBeNull()
})
it('should overwrite existing data', async () => {
await storage.set('key1', { value: 1 })
await storage.set('key1', { value: 2 })
const data = await storage.get<{ value: number }>('key1')
expect(data).toEqual({ value: 2 })
})
})
// ========================================================================
// 辅助方法测试 | Helper Methods Tests
// ========================================================================
describe('Helper Methods', () => {
it('should clear all data', async () => {
await storage.set('key1', 'value1')
await storage.set('key2', 'value2')
await storage.saveTransaction({
id: 'tx-1',
state: 'pending',
operations: [],
createdAt: Date.now(),
updatedAt: Date.now(),
})
storage.clear()
expect(await storage.get('key1')).toBeNull()
expect(await storage.get('key2')).toBeNull()
expect(await storage.getTransaction('tx-1')).toBeNull()
expect(storage.transactionCount).toBe(0)
})
it('should track transaction count', async () => {
expect(storage.transactionCount).toBe(0)
await storage.saveTransaction({
id: 'tx-1',
state: 'pending',
operations: [],
createdAt: Date.now(),
updatedAt: Date.now(),
})
expect(storage.transactionCount).toBe(1)
})
})
})

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{
"id": "transaction",
"name": "@esengine/transaction",
"globalKey": "transaction",
"displayName": "Transaction System",
"description": "游戏事务系统,支持商店购买、玩家交易、分布式事务 | Game transaction system for shop, trading, distributed transactions",
"version": "1.0.0",
"category": "Other",
"icon": "Receipt",
"tags": ["transaction", "distributed", "saga", "database"],
"isCore": false,
"defaultEnabled": false,
"isEngineModule": true,
"canContainContent": false,
"platforms": ["nodejs"],
"dependencies": ["core", "server"],
"exports": {
"services": ["TransactionManager"],
"interfaces": ["ITransactionStorage", "ITransactionOperation"]
},
"requiresWasm": false,
"outputPath": "dist/index.js"
}

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{
"name": "@esengine/transaction",
"version": "2.0.2",
"description": "Game transaction system with distributed support | 游戏事务系统,支持分布式事务",
"type": "module",
"main": "./dist/index.js",
"module": "./dist/index.js",
"types": "./dist/index.d.ts",
"exports": {
".": {
"import": "./dist/index.js",
"types": "./dist/index.d.ts"
}
},
"files": [
"dist",
"module.json"
],
"scripts": {
"build": "tsup && tsc -p tsconfig.build.json --emitDeclarationOnly",
"build:watch": "tsup --watch",
"type-check": "tsc --noEmit",
"clean": "rimraf dist",
"test": "vitest run",
"test:watch": "vitest"
},
"dependencies": {
"@esengine/server": "workspace:*"
},
"peerDependencies": {
"ioredis": "^5.3.0",
"mongodb": "^6.0.0"
},
"peerDependenciesMeta": {
"ioredis": {
"optional": true
},
"mongodb": {
"optional": true
}
},
"devDependencies": {
"@esengine/ecs-framework": "workspace:*",
"@esengine/build-config": "workspace:*",
"tsup": "^8.0.0",
"typescript": "^5.8.0",
"rimraf": "^5.0.0",
"vitest": "^2.0.0"
},
"publishConfig": {
"access": "public"
}
}

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/**
* @zh 事务上下文实现
* @en Transaction context implementation
*/
import type {
ITransactionContext,
ITransactionOperation,
ITransactionStorage,
TransactionState,
TransactionResult,
TransactionOptions,
TransactionLog,
OperationLog,
OperationResult
} from './types.js';
/**
* @zh 生成唯一 ID
* @en Generate unique ID
*/
function generateId(): string {
return `tx_${Date.now().toString(36)}_${Math.random().toString(36).substring(2, 11)}`;
}
/**
* @zh 事务上下文
* @en Transaction context
*
* @zh 封装事务的状态、操作和执行逻辑
* @en Encapsulates transaction state, operations, and execution logic
*
* @example
* ```typescript
* const ctx = new TransactionContext({ timeout: 5000 })
* ctx.addOperation(new DeductCurrency({ playerId: '1', amount: 100 }))
* ctx.addOperation(new AddItem({ playerId: '1', itemId: 'sword' }))
* const result = await ctx.execute()
* ```
*/
export class TransactionContext implements ITransactionContext {
private _id: string;
private _state: TransactionState = 'pending';
private _timeout: number;
private _operations: ITransactionOperation[] = [];
private _storage: ITransactionStorage | null;
private _metadata: Record<string, unknown>;
private _contextData: Map<string, unknown> = new Map();
private _startTime: number = 0;
private _distributed: boolean;
constructor(options: TransactionOptions & { storage?: ITransactionStorage } = {}) {
this._id = generateId();
this._timeout = options.timeout ?? 30000;
this._storage = options.storage ?? null;
this._metadata = options.metadata ?? {};
this._distributed = options.distributed ?? false;
}
// =========================================================================
// 只读属性 | Readonly properties
// =========================================================================
get id(): string {
return this._id;
}
get state(): TransactionState {
return this._state;
}
get timeout(): number {
return this._timeout;
}
get operations(): ReadonlyArray<ITransactionOperation> {
return this._operations;
}
get storage(): ITransactionStorage | null {
return this._storage;
}
get metadata(): Record<string, unknown> {
return this._metadata;
}
// =========================================================================
// 公共方法 | Public methods
// =========================================================================
/**
* @zh 添加操作
* @en Add operation
*/
addOperation<T extends ITransactionOperation>(operation: T): this {
if (this._state !== 'pending') {
throw new Error(`Cannot add operation to transaction in state: ${this._state}`);
}
this._operations.push(operation);
return this;
}
/**
* @zh 执行事务
* @en Execute transaction
*/
async execute<T = unknown>(): Promise<TransactionResult<T>> {
if (this._state !== 'pending') {
return {
success: false,
transactionId: this._id,
results: [],
error: `Transaction already in state: ${this._state}`,
duration: 0
};
}
this._startTime = Date.now();
this._state = 'executing';
const results: OperationResult[] = [];
let executedCount = 0;
try {
await this._saveLog();
for (let i = 0; i < this._operations.length; i++) {
if (this._isTimedOut()) {
throw new Error('Transaction timed out');
}
const op = this._operations[i];
const isValid = await op.validate(this);
if (!isValid) {
throw new Error(`Validation failed for operation: ${op.name}`);
}
const result = await op.execute(this);
results.push(result);
executedCount++;
await this._updateOperationLog(i, 'executed');
if (!result.success) {
throw new Error(result.error ?? `Operation ${op.name} failed`);
}
}
this._state = 'committed';
await this._updateTransactionState('committed');
return {
success: true,
transactionId: this._id,
results,
data: this._collectResultData(results) as T,
duration: Date.now() - this._startTime
};
} catch (error) {
const errorMessage = error instanceof Error ? error.message : String(error);
await this._compensate(executedCount - 1);
return {
success: false,
transactionId: this._id,
results,
error: errorMessage,
duration: Date.now() - this._startTime
};
}
}
/**
* @zh 手动回滚事务
* @en Manually rollback transaction
*/
async rollback(): Promise<void> {
if (this._state === 'committed' || this._state === 'rolledback') {
return;
}
await this._compensate(this._operations.length - 1);
}
/**
* @zh 获取上下文数据
* @en Get context data
*/
get<T>(key: string): T | undefined {
return this._contextData.get(key) as T | undefined;
}
/**
* @zh 设置上下文数据
* @en Set context data
*/
set<T>(key: string, value: T): void {
this._contextData.set(key, value);
}
// =========================================================================
// 私有方法 | Private methods
// =========================================================================
private _isTimedOut(): boolean {
return Date.now() - this._startTime > this._timeout;
}
private async _compensate(fromIndex: number): Promise<void> {
this._state = 'rolledback';
for (let i = fromIndex; i >= 0; i--) {
const op = this._operations[i];
try {
await op.compensate(this);
await this._updateOperationLog(i, 'compensated');
} catch (error) {
const errorMessage = error instanceof Error ? error.message : String(error);
await this._updateOperationLog(i, 'failed', errorMessage);
}
}
await this._updateTransactionState('rolledback');
}
private async _saveLog(): Promise<void> {
if (!this._storage) return;
const log: TransactionLog = {
id: this._id,
state: this._state,
createdAt: this._startTime,
updatedAt: this._startTime,
timeout: this._timeout,
operations: this._operations.map((op) => ({
name: op.name,
data: op.data,
state: 'pending' as const
})),
metadata: this._metadata,
distributed: this._distributed
};
await this._storage.saveTransaction(log);
}
private async _updateTransactionState(state: TransactionState): Promise<void> {
this._state = state;
if (this._storage) {
await this._storage.updateTransactionState(this._id, state);
}
}
private async _updateOperationLog(
index: number,
state: OperationLog['state'],
error?: string
): Promise<void> {
if (this._storage) {
await this._storage.updateOperationState(this._id, index, state, error);
}
}
private _collectResultData(results: OperationResult[]): unknown {
const data: Record<string, unknown> = {};
for (const result of results) {
if (result.data !== undefined) {
Object.assign(data, result.data);
}
}
return Object.keys(data).length > 0 ? data : undefined;
}
}
/**
* @zh 创建事务上下文
* @en Create transaction context
*/
export function createTransactionContext(
options: TransactionOptions & { storage?: ITransactionStorage } = {}
): ITransactionContext {
return new TransactionContext(options);
}

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/**
* @zh 事务管理器
* @en Transaction manager
*/
import type {
ITransactionContext,
ITransactionStorage,
TransactionManagerConfig,
TransactionOptions,
TransactionLog,
TransactionResult
} from './types.js';
import { TransactionContext } from './TransactionContext.js';
/**
* @zh 事务管理器
* @en Transaction manager
*
* @zh 管理事务的创建、执行和恢复
* @en Manages transaction creation, execution, and recovery
*
* @example
* ```typescript
* const manager = new TransactionManager({
* storage: new RedisStorage({ url: 'redis://localhost:6379' }),
* defaultTimeout: 10000,
* })
*
* const tx = manager.begin({ timeout: 5000 })
* tx.addOperation(new DeductCurrency({ ... }))
* tx.addOperation(new AddItem({ ... }))
*
* const result = await tx.execute()
* ```
*/
export class TransactionManager {
private _storage: ITransactionStorage | null;
private _defaultTimeout: number;
private _serverId: string;
private _autoRecover: boolean;
private _activeTransactions: Map<string, ITransactionContext> = new Map();
constructor(config: TransactionManagerConfig = {}) {
this._storage = config.storage ?? null;
this._defaultTimeout = config.defaultTimeout ?? 30000;
this._serverId = config.serverId ?? this._generateServerId();
this._autoRecover = config.autoRecover ?? true;
}
// =========================================================================
// 只读属性 | Readonly properties
// =========================================================================
/**
* @zh 服务器 ID
* @en Server ID
*/
get serverId(): string {
return this._serverId;
}
/**
* @zh 存储实例
* @en Storage instance
*/
get storage(): ITransactionStorage | null {
return this._storage;
}
/**
* @zh 活跃事务数量
* @en Active transaction count
*/
get activeCount(): number {
return this._activeTransactions.size;
}
// =========================================================================
// 公共方法 | Public methods
// =========================================================================
/**
* @zh 开始新事务
* @en Begin new transaction
*
* @param options - @zh 事务选项 @en Transaction options
* @returns @zh 事务上下文 @en Transaction context
*/
begin(options: TransactionOptions = {}): ITransactionContext {
const ctx = new TransactionContext({
timeout: options.timeout ?? this._defaultTimeout,
storage: this._storage ?? undefined,
metadata: {
...options.metadata,
serverId: this._serverId
},
distributed: options.distributed
});
this._activeTransactions.set(ctx.id, ctx);
return ctx;
}
/**
* @zh 执行事务(便捷方法)
* @en Execute transaction (convenience method)
*
* @param builder - @zh 事务构建函数 @en Transaction builder function
* @param options - @zh 事务选项 @en Transaction options
* @returns @zh 事务结果 @en Transaction result
*/
async run<T = unknown>(
builder: (ctx: ITransactionContext) => void | Promise<void>,
options: TransactionOptions = {}
): Promise<TransactionResult<T>> {
const ctx = this.begin(options);
try {
await builder(ctx);
const result = await ctx.execute<T>();
return result;
} finally {
this._activeTransactions.delete(ctx.id);
}
}
/**
* @zh 获取活跃事务
* @en Get active transaction
*/
getTransaction(id: string): ITransactionContext | undefined {
return this._activeTransactions.get(id);
}
/**
* @zh 恢复未完成的事务
* @en Recover pending transactions
*/
async recover(): Promise<number> {
if (!this._storage) return 0;
const pendingTransactions = await this._storage.getPendingTransactions(this._serverId);
let recoveredCount = 0;
for (const log of pendingTransactions) {
try {
await this._recoverTransaction(log);
recoveredCount++;
} catch (error) {
console.error(`Failed to recover transaction ${log.id}:`, error);
}
}
return recoveredCount;
}
/**
* @zh 获取分布式锁
* @en Acquire distributed lock
*/
async acquireLock(key: string, ttl: number = 10000): Promise<string | null> {
if (!this._storage) return null;
return this._storage.acquireLock(key, ttl);
}
/**
* @zh 释放分布式锁
* @en Release distributed lock
*/
async releaseLock(key: string, token: string): Promise<boolean> {
if (!this._storage) return false;
return this._storage.releaseLock(key, token);
}
/**
* @zh 使用分布式锁执行
* @en Execute with distributed lock
*/
async withLock<T>(
key: string,
fn: () => Promise<T>,
ttl: number = 10000
): Promise<T> {
const token = await this.acquireLock(key, ttl);
if (!token) {
throw new Error(`Failed to acquire lock for key: ${key}`);
}
try {
return await fn();
} finally {
await this.releaseLock(key, token);
}
}
/**
* @zh 清理已完成的事务日志
* @en Clean up completed transaction logs
*/
async cleanup(beforeTimestamp?: number): Promise<number> {
if (!this._storage) return 0;
const timestamp = beforeTimestamp ?? Date.now() - 24 * 60 * 60 * 1000; // 默认清理24小时前
const pendingTransactions = await this._storage.getPendingTransactions();
let cleanedCount = 0;
for (const log of pendingTransactions) {
if (
log.createdAt < timestamp &&
(log.state === 'committed' || log.state === 'rolledback')
) {
await this._storage.deleteTransaction(log.id);
cleanedCount++;
}
}
return cleanedCount;
}
// =========================================================================
// 私有方法 | Private methods
// =========================================================================
private _generateServerId(): string {
return `server_${Date.now().toString(36)}_${Math.random().toString(36).substring(2, 8)}`;
}
private async _recoverTransaction(log: TransactionLog): Promise<void> {
if (log.state === 'executing') {
const executedOps = log.operations.filter((op) => op.state === 'executed');
if (executedOps.length > 0 && this._storage) {
for (let i = executedOps.length - 1; i >= 0; i--) {
await this._storage.updateOperationState(log.id, i, 'compensated');
}
await this._storage.updateTransactionState(log.id, 'rolledback');
} else {
await this._storage?.updateTransactionState(log.id, 'failed');
}
}
}
}
/**
* @zh 创建事务管理器
* @en Create transaction manager
*/
export function createTransactionManager(
config: TransactionManagerConfig = {}
): TransactionManager {
return new TransactionManager(config);
}

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/**
* @zh 核心模块导出
* @en Core module exports
*/
export type {
TransactionState,
OperationResult,
TransactionResult,
OperationLog,
TransactionLog,
TransactionOptions,
TransactionManagerConfig,
ITransactionStorage,
ITransactionOperation,
ITransactionContext
} from './types.js';
export { TransactionContext, createTransactionContext } from './TransactionContext.js';
export { TransactionManager, createTransactionManager } from './TransactionManager.js';

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/**
* @zh 事务系统核心类型定义
* @en Transaction system core type definitions
*/
// =============================================================================
// 事务状态 | Transaction State
// =============================================================================
/**
* @zh 事务状态
* @en Transaction state
*/
export type TransactionState =
| 'pending' // 等待执行 | Waiting to execute
| 'executing' // 执行中 | Executing
| 'committed' // 已提交 | Committed
| 'rolledback' // 已回滚 | Rolled back
| 'failed' // 失败 | Failed
// =============================================================================
// 操作结果 | Operation Result
// =============================================================================
/**
* @zh 操作结果
* @en Operation result
*/
export interface OperationResult<T = unknown> {
/**
* @zh 是否成功
* @en Whether succeeded
*/
success: boolean
/**
* @zh 返回数据
* @en Return data
*/
data?: T
/**
* @zh 错误信息
* @en Error message
*/
error?: string
/**
* @zh 错误代码
* @en Error code
*/
errorCode?: string
}
/**
* @zh 事务结果
* @en Transaction result
*/
export interface TransactionResult<T = unknown> {
/**
* @zh 是否成功
* @en Whether succeeded
*/
success: boolean
/**
* @zh 事务 ID
* @en Transaction ID
*/
transactionId: string
/**
* @zh 操作结果列表
* @en Operation results
*/
results: OperationResult[]
/**
* @zh 最终数据
* @en Final data
*/
data?: T
/**
* @zh 错误信息
* @en Error message
*/
error?: string
/**
* @zh 执行时间(毫秒)
* @en Execution time in milliseconds
*/
duration: number
}
// =============================================================================
// 事务日志 | Transaction Log
// =============================================================================
/**
* @zh 操作日志
* @en Operation log
*/
export interface OperationLog {
/**
* @zh 操作名称
* @en Operation name
*/
name: string
/**
* @zh 操作数据
* @en Operation data
*/
data: unknown
/**
* @zh 操作状态
* @en Operation state
*/
state: 'pending' | 'executed' | 'compensated' | 'failed'
/**
* @zh 执行时间
* @en Execution timestamp
*/
executedAt?: number
/**
* @zh 补偿时间
* @en Compensation timestamp
*/
compensatedAt?: number
/**
* @zh 错误信息
* @en Error message
*/
error?: string
}
/**
* @zh 事务日志
* @en Transaction log
*/
export interface TransactionLog {
/**
* @zh 事务 ID
* @en Transaction ID
*/
id: string
/**
* @zh 事务状态
* @en Transaction state
*/
state: TransactionState
/**
* @zh 创建时间
* @en Creation timestamp
*/
createdAt: number
/**
* @zh 更新时间
* @en Update timestamp
*/
updatedAt: number
/**
* @zh 超时时间(毫秒)
* @en Timeout in milliseconds
*/
timeout: number
/**
* @zh 操作日志列表
* @en Operation logs
*/
operations: OperationLog[]
/**
* @zh 元数据
* @en Metadata
*/
metadata?: Record<string, unknown>
/**
* @zh 是否分布式事务
* @en Whether distributed transaction
*/
distributed?: boolean
/**
* @zh 参与的服务器列表
* @en Participating servers
*/
participants?: string[]
}
// =============================================================================
// 事务配置 | Transaction Configuration
// =============================================================================
/**
* @zh 事务选项
* @en Transaction options
*/
export interface TransactionOptions {
/**
* @zh 超时时间(毫秒),默认 30000
* @en Timeout in milliseconds, default 30000
*/
timeout?: number
/**
* @zh 是否分布式事务
* @en Whether distributed transaction
*/
distributed?: boolean
/**
* @zh 元数据
* @en Metadata
*/
metadata?: Record<string, unknown>
/**
* @zh 重试次数,默认 0
* @en Retry count, default 0
*/
retryCount?: number
/**
* @zh 重试间隔(毫秒),默认 1000
* @en Retry interval in milliseconds, default 1000
*/
retryInterval?: number
}
/**
* @zh 事务管理器配置
* @en Transaction manager configuration
*/
export interface TransactionManagerConfig {
/**
* @zh 存储实例
* @en Storage instance
*/
storage?: ITransactionStorage
/**
* @zh 默认超时时间(毫秒)
* @en Default timeout in milliseconds
*/
defaultTimeout?: number
/**
* @zh 服务器 ID分布式用
* @en Server ID for distributed transactions
*/
serverId?: string
/**
* @zh 是否自动恢复未完成事务
* @en Whether to auto-recover pending transactions
*/
autoRecover?: boolean
}
// =============================================================================
// 存储接口 | Storage Interface
// =============================================================================
/**
* @zh 事务存储接口
* @en Transaction storage interface
*/
export interface ITransactionStorage {
/**
* @zh 关闭存储连接
* @en Close storage connection
*
* @zh 释放所有资源,关闭数据库连接
* @en Release all resources, close database connections
*/
close?(): Promise<void>
/**
* @zh 获取分布式锁
* @en Acquire distributed lock
*
* @param key - @zh 锁的键 @en Lock key
* @param ttl - @zh 锁的生存时间(毫秒) @en Lock TTL in milliseconds
* @returns @zh 锁令牌,获取失败返回 null @en Lock token, null if failed
*/
acquireLock(key: string, ttl: number): Promise<string | null>
/**
* @zh 释放分布式锁
* @en Release distributed lock
*
* @param key - @zh 锁的键 @en Lock key
* @param token - @zh 锁令牌 @en Lock token
* @returns @zh 是否成功释放 @en Whether released successfully
*/
releaseLock(key: string, token: string): Promise<boolean>
/**
* @zh 保存事务日志
* @en Save transaction log
*/
saveTransaction(tx: TransactionLog): Promise<void>
/**
* @zh 获取事务日志
* @en Get transaction log
*/
getTransaction(id: string): Promise<TransactionLog | null>
/**
* @zh 更新事务状态
* @en Update transaction state
*/
updateTransactionState(id: string, state: TransactionState): Promise<void>
/**
* @zh 更新操作状态
* @en Update operation state
*/
updateOperationState(
transactionId: string,
operationIndex: number,
state: OperationLog['state'],
error?: string
): Promise<void>
/**
* @zh 获取待恢复的事务列表
* @en Get pending transactions for recovery
*/
getPendingTransactions(serverId?: string): Promise<TransactionLog[]>
/**
* @zh 删除事务日志
* @en Delete transaction log
*/
deleteTransaction(id: string): Promise<void>
/**
* @zh 获取数据
* @en Get data
*/
get<T>(key: string): Promise<T | null>
/**
* @zh 设置数据
* @en Set data
*/
set<T>(key: string, value: T, ttl?: number): Promise<void>
/**
* @zh 删除数据
* @en Delete data
*/
delete(key: string): Promise<boolean>
}
// =============================================================================
// 操作接口 | Operation Interface
// =============================================================================
/**
* @zh 事务操作接口
* @en Transaction operation interface
*/
export interface ITransactionOperation<TData = unknown, TResult = unknown> {
/**
* @zh 操作名称
* @en Operation name
*/
readonly name: string
/**
* @zh 操作数据
* @en Operation data
*/
readonly data: TData
/**
* @zh 验证前置条件
* @en Validate preconditions
*
* @param ctx - @zh 事务上下文 @en Transaction context
* @returns @zh 是否验证通过 @en Whether validation passed
*/
validate(ctx: ITransactionContext): Promise<boolean>
/**
* @zh 执行操作
* @en Execute operation
*
* @param ctx - @zh 事务上下文 @en Transaction context
* @returns @zh 操作结果 @en Operation result
*/
execute(ctx: ITransactionContext): Promise<OperationResult<TResult>>
/**
* @zh 补偿操作(回滚)
* @en Compensate operation (rollback)
*
* @param ctx - @zh 事务上下文 @en Transaction context
*/
compensate(ctx: ITransactionContext): Promise<void>
}
// =============================================================================
// 事务上下文接口 | Transaction Context Interface
// =============================================================================
/**
* @zh 事务上下文接口
* @en Transaction context interface
*/
export interface ITransactionContext {
/**
* @zh 事务 ID
* @en Transaction ID
*/
readonly id: string
/**
* @zh 事务状态
* @en Transaction state
*/
readonly state: TransactionState
/**
* @zh 超时时间(毫秒)
* @en Timeout in milliseconds
*/
readonly timeout: number
/**
* @zh 操作列表
* @en Operations
*/
readonly operations: ReadonlyArray<ITransactionOperation>
/**
* @zh 存储实例
* @en Storage instance
*/
readonly storage: ITransactionStorage | null
/**
* @zh 元数据
* @en Metadata
*/
readonly metadata: Record<string, unknown>
/**
* @zh 添加操作
* @en Add operation
*/
addOperation<T extends ITransactionOperation>(operation: T): this
/**
* @zh 执行事务
* @en Execute transaction
*/
execute<T = unknown>(): Promise<TransactionResult<T>>
/**
* @zh 回滚事务
* @en Rollback transaction
*/
rollback(): Promise<void>
/**
* @zh 获取上下文数据
* @en Get context data
*/
get<T>(key: string): T | undefined
/**
* @zh 设置上下文数据
* @en Set context data
*/
set<T>(key: string, value: T): void
}

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/**
* @zh Saga 编排器
* @en Saga Orchestrator
*
* @zh 实现分布式事务的 Saga 模式编排
* @en Implements Saga pattern orchestration for distributed transactions
*/
import type {
ITransactionStorage,
TransactionLog,
TransactionState,
OperationResult
} from '../core/types.js';
/**
* @zh Saga 步骤状态
* @en Saga step state
*/
export type SagaStepState = 'pending' | 'executing' | 'completed' | 'compensating' | 'compensated' | 'failed'
/**
* @zh Saga 步骤
* @en Saga step
*/
export interface SagaStep<T = unknown> {
/**
* @zh 步骤名称
* @en Step name
*/
name: string
/**
* @zh 目标服务器 ID分布式用
* @en Target server ID (for distributed)
*/
serverId?: string
/**
* @zh 执行函数
* @en Execute function
*/
execute: (data: T) => Promise<OperationResult>
/**
* @zh 补偿函数
* @en Compensate function
*/
compensate: (data: T) => Promise<void>
/**
* @zh 步骤数据
* @en Step data
*/
data: T
}
/**
* @zh Saga 步骤日志
* @en Saga step log
*/
export interface SagaStepLog {
name: string
serverId?: string
state: SagaStepState
startedAt?: number
completedAt?: number
error?: string
}
/**
* @zh Saga 日志
* @en Saga log
*/
export interface SagaLog {
id: string
state: 'pending' | 'running' | 'completed' | 'compensating' | 'compensated' | 'failed'
steps: SagaStepLog[]
createdAt: number
updatedAt: number
metadata?: Record<string, unknown>
}
/**
* @zh Saga 结果
* @en Saga result
*/
export interface SagaResult {
success: boolean
sagaId: string
completedSteps: string[]
failedStep?: string
error?: string
duration: number
}
/**
* @zh Saga 编排器配置
* @en Saga orchestrator configuration
*/
export interface SagaOrchestratorConfig {
/**
* @zh 存储实例
* @en Storage instance
*/
storage?: ITransactionStorage
/**
* @zh 默认超时时间(毫秒)
* @en Default timeout in milliseconds
*/
timeout?: number
/**
* @zh 服务器 ID
* @en Server ID
*/
serverId?: string
}
/**
* @zh 生成 Saga ID
* @en Generate Saga ID
*/
function generateSagaId(): string {
return `saga_${Date.now().toString(36)}_${Math.random().toString(36).substring(2, 11)}`;
}
/**
* @zh Saga 编排器
* @en Saga Orchestrator
*
* @zh 管理分布式事务的 Saga 模式执行流程
* @en Manages Saga pattern execution flow for distributed transactions
*
* @example
* ```typescript
* const orchestrator = new SagaOrchestrator({
* storage: redisStorage,
* serverId: 'server1',
* })
*
* const result = await orchestrator.execute([
* {
* name: 'deduct_currency',
* serverId: 'server1',
* execute: async (data) => {
* // 扣除货币
* return { success: true }
* },
* compensate: async (data) => {
* // 恢复货币
* },
* data: { playerId: '1', amount: 100 },
* },
* {
* name: 'add_item',
* serverId: 'server2',
* execute: async (data) => {
* // 添加物品
* return { success: true }
* },
* compensate: async (data) => {
* // 移除物品
* },
* data: { playerId: '1', itemId: 'sword' },
* },
* ])
* ```
*/
export class SagaOrchestrator {
private _storage: ITransactionStorage | null;
private _timeout: number;
private _serverId: string;
constructor(config: SagaOrchestratorConfig = {}) {
this._storage = config.storage ?? null;
this._timeout = config.timeout ?? 30000;
this._serverId = config.serverId ?? 'default';
}
/**
* @zh 执行 Saga
* @en Execute Saga
*/
async execute<T>(steps: SagaStep<T>[]): Promise<SagaResult> {
const sagaId = generateSagaId();
const startTime = Date.now();
const completedSteps: string[] = [];
const sagaLog: SagaLog = {
id: sagaId,
state: 'pending',
steps: steps.map((s) => ({
name: s.name,
serverId: s.serverId,
state: 'pending' as SagaStepState
})),
createdAt: startTime,
updatedAt: startTime,
metadata: { orchestratorServerId: this._serverId }
};
await this._saveSagaLog(sagaLog);
try {
sagaLog.state = 'running';
await this._saveSagaLog(sagaLog);
for (let i = 0; i < steps.length; i++) {
const step = steps[i];
if (Date.now() - startTime > this._timeout) {
throw new Error('Saga execution timed out');
}
sagaLog.steps[i].state = 'executing';
sagaLog.steps[i].startedAt = Date.now();
await this._saveSagaLog(sagaLog);
const result = await step.execute(step.data);
if (!result.success) {
sagaLog.steps[i].state = 'failed';
sagaLog.steps[i].error = result.error;
await this._saveSagaLog(sagaLog);
throw new Error(result.error ?? `Step ${step.name} failed`);
}
sagaLog.steps[i].state = 'completed';
sagaLog.steps[i].completedAt = Date.now();
completedSteps.push(step.name);
await this._saveSagaLog(sagaLog);
}
sagaLog.state = 'completed';
sagaLog.updatedAt = Date.now();
await this._saveSagaLog(sagaLog);
return {
success: true,
sagaId,
completedSteps,
duration: Date.now() - startTime
};
} catch (error) {
const errorMessage = error instanceof Error ? error.message : String(error);
const failedStepIndex = completedSteps.length;
sagaLog.state = 'compensating';
await this._saveSagaLog(sagaLog);
for (let i = completedSteps.length - 1; i >= 0; i--) {
const step = steps[i];
sagaLog.steps[i].state = 'compensating';
await this._saveSagaLog(sagaLog);
try {
await step.compensate(step.data);
sagaLog.steps[i].state = 'compensated';
} catch (compError) {
const compErrorMessage = compError instanceof Error ? compError.message : String(compError);
sagaLog.steps[i].state = 'failed';
sagaLog.steps[i].error = `Compensation failed: ${compErrorMessage}`;
}
await this._saveSagaLog(sagaLog);
}
sagaLog.state = 'compensated';
sagaLog.updatedAt = Date.now();
await this._saveSagaLog(sagaLog);
return {
success: false,
sagaId,
completedSteps,
failedStep: steps[failedStepIndex]?.name,
error: errorMessage,
duration: Date.now() - startTime
};
}
}
/**
* @zh 恢复未完成的 Saga
* @en Recover pending Sagas
*/
async recover(): Promise<number> {
if (!this._storage) return 0;
const pendingSagas = await this._getPendingSagas();
let recoveredCount = 0;
for (const saga of pendingSagas) {
try {
await this._recoverSaga(saga);
recoveredCount++;
} catch (error) {
console.error(`Failed to recover saga ${saga.id}:`, error);
}
}
return recoveredCount;
}
/**
* @zh 获取 Saga 日志
* @en Get Saga log
*/
async getSagaLog(sagaId: string): Promise<SagaLog | null> {
if (!this._storage) return null;
return this._storage.get<SagaLog>(`saga:${sagaId}`);
}
private async _saveSagaLog(log: SagaLog): Promise<void> {
if (!this._storage) return;
log.updatedAt = Date.now();
await this._storage.set(`saga:${log.id}`, log);
}
private async _getPendingSagas(): Promise<SagaLog[]> {
return [];
}
private async _recoverSaga(saga: SagaLog): Promise<void> {
if (saga.state === 'running' || saga.state === 'compensating') {
const completedSteps = saga.steps
.filter((s) => s.state === 'completed')
.map((s) => s.name);
saga.state = 'compensated';
saga.updatedAt = Date.now();
if (this._storage) {
await this._storage.set(`saga:${saga.id}`, saga);
}
}
}
}
/**
* @zh 创建 Saga 编排器
* @en Create Saga orchestrator
*/
export function createSagaOrchestrator(config: SagaOrchestratorConfig = {}): SagaOrchestrator {
return new SagaOrchestrator(config);
}

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/**
* @zh 分布式模块导出
* @en Distributed module exports
*/
export {
SagaOrchestrator,
createSagaOrchestrator,
type SagaOrchestratorConfig,
type SagaStep,
type SagaStepState,
type SagaStepLog,
type SagaLog,
type SagaResult
} from './SagaOrchestrator.js';

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/**
* @zh @esengine/transaction 事务系统
* @en @esengine/transaction Transaction System
*
* @zh 提供游戏事务处理能力,支持商店购买、玩家交易、分布式事务
* @en Provides game transaction capabilities, supporting shop purchases, player trading, and distributed transactions
*
* @example
* ```typescript
* import {
* TransactionManager,
* MemoryStorage,
* CurrencyOperation,
* InventoryOperation,
* } from '@esengine/transaction'
*
* // 创建事务管理器
* const manager = new TransactionManager({
* storage: new MemoryStorage(),
* })
*
* // 执行事务
* const result = await manager.run((tx) => {
* tx.addOperation(new CurrencyOperation({
* type: 'deduct',
* playerId: 'player1',
* currency: 'gold',
* amount: 100,
* }))
* tx.addOperation(new InventoryOperation({
* type: 'add',
* playerId: 'player1',
* itemId: 'sword',
* quantity: 1,
* }))
* })
*
* if (result.success) {
* console.log('Transaction completed!')
* }
* ```
*/
// =============================================================================
// Core | 核心
// =============================================================================
export type {
TransactionState,
OperationResult,
TransactionResult,
OperationLog,
TransactionLog,
TransactionOptions,
TransactionManagerConfig,
ITransactionStorage,
ITransactionOperation,
ITransactionContext
} from './core/types.js';
export {
TransactionContext,
createTransactionContext
} from './core/TransactionContext.js';
export {
TransactionManager,
createTransactionManager
} from './core/TransactionManager.js';
// =============================================================================
// Storage | 存储
// =============================================================================
export {
MemoryStorage,
createMemoryStorage,
type MemoryStorageConfig
} from './storage/MemoryStorage.js';
export {
RedisStorage,
createRedisStorage,
type RedisStorageConfig,
type RedisClient
} from './storage/RedisStorage.js';
export {
MongoStorage,
createMongoStorage,
type MongoStorageConfig,
type MongoDb,
type MongoCollection
} from './storage/MongoStorage.js';
// =============================================================================
// Operations | 操作
// =============================================================================
export { BaseOperation } from './operations/BaseOperation.js';
export {
CurrencyOperation,
createCurrencyOperation,
type CurrencyOperationType,
type CurrencyOperationData,
type CurrencyOperationResult,
type ICurrencyProvider
} from './operations/CurrencyOperation.js';
export {
InventoryOperation,
createInventoryOperation,
type InventoryOperationType,
type InventoryOperationData,
type InventoryOperationResult,
type IInventoryProvider,
type ItemData
} from './operations/InventoryOperation.js';
export {
TradeOperation,
createTradeOperation,
type TradeOperationData,
type TradeOperationResult,
type TradeItem,
type TradeCurrency,
type TradeParty,
type ITradeProvider
} from './operations/TradeOperation.js';
// =============================================================================
// Distributed | 分布式
// =============================================================================
export {
SagaOrchestrator,
createSagaOrchestrator,
type SagaOrchestratorConfig,
type SagaStep,
type SagaStepState,
type SagaStepLog,
type SagaLog,
type SagaResult
} from './distributed/SagaOrchestrator.js';
// =============================================================================
// Integration | 集成
// =============================================================================
export {
withTransactions,
TransactionRoom,
type TransactionRoomConfig,
type ITransactionRoom
} from './integration/RoomTransactionMixin.js';
// =============================================================================
// Tokens | 令牌
// =============================================================================
export {
TransactionManagerToken,
TransactionStorageToken
} from './tokens.js';

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/**
* @zh Room 事务扩展
* @en Room transaction extension
*/
import type {
ITransactionStorage,
ITransactionContext,
TransactionOptions,
TransactionResult
} from '../core/types.js';
import { TransactionManager } from '../core/TransactionManager.js';
/**
* @zh 事务 Room 配置
* @en Transaction Room configuration
*/
export interface TransactionRoomConfig {
/**
* @zh 存储实例
* @en Storage instance
*/
storage?: ITransactionStorage
/**
* @zh 默认超时时间(毫秒)
* @en Default timeout in milliseconds
*/
defaultTimeout?: number
/**
* @zh 服务器 ID
* @en Server ID
*/
serverId?: string
}
/**
* @zh 事务 Room 接口
* @en Transaction Room interface
*/
export interface ITransactionRoom {
/**
* @zh 事务管理器
* @en Transaction manager
*/
readonly transactions: TransactionManager
/**
* @zh 开始事务
* @en Begin transaction
*/
beginTransaction(options?: TransactionOptions): ITransactionContext
/**
* @zh 执行事务
* @en Run transaction
*/
runTransaction<T = unknown>(
builder: (ctx: ITransactionContext) => void | Promise<void>,
options?: TransactionOptions
): Promise<TransactionResult<T>>
}
/**
* @zh 创建事务 Room mixin
* @en Create transaction Room mixin
*
* @example
* ```typescript
* import { Room } from '@esengine/server'
* import { withTransactions, RedisStorage } from '@esengine/transaction'
*
* class GameRoom extends withTransactions(Room, {
* storage: new RedisStorage({ client: redisClient }),
* }) {
* async handleBuy(itemId: string, player: Player) {
* const result = await this.runTransaction((tx) => {
* tx.addOperation(new CurrencyOperation({
* type: 'deduct',
* playerId: player.id,
* currency: 'gold',
* amount: 100,
* }))
* })
*
* if (result.success) {
* player.send('buy_success', { itemId })
* }
* }
* }
* ```
*/
export function withTransactions<TBase extends new (...args: any[]) => any>(
Base: TBase,
config: TransactionRoomConfig = {}
): TBase & (new (...args: any[]) => ITransactionRoom) {
return class TransactionRoom extends Base implements ITransactionRoom {
private _transactionManager: TransactionManager;
constructor(...args: any[]) {
super(...args);
this._transactionManager = new TransactionManager({
storage: config.storage,
defaultTimeout: config.defaultTimeout,
serverId: config.serverId
});
}
get transactions(): TransactionManager {
return this._transactionManager;
}
beginTransaction(options?: TransactionOptions): ITransactionContext {
return this._transactionManager.begin(options);
}
runTransaction<T = unknown>(
builder: (ctx: ITransactionContext) => void | Promise<void>,
options?: TransactionOptions
): Promise<TransactionResult<T>> {
return this._transactionManager.run<T>(builder, options);
}
};
}
/**
* @zh 事务 Room 抽象基类
* @en Transaction Room abstract base class
*
* @zh 可以直接继承使用,也可以使用 withTransactions mixin
* @en Can be extended directly or use withTransactions mixin
*
* @example
* ```typescript
* class GameRoom extends TransactionRoom {
* constructor() {
* super({ storage: new RedisStorage({ client: redisClient }) })
* }
*
* async handleTrade(data: TradeData, player: Player) {
* const result = await this.runTransaction((tx) => {
* // 添加交易操作
* })
* }
* }
* ```
*/
export abstract class TransactionRoom implements ITransactionRoom {
private _transactionManager: TransactionManager;
constructor(config: TransactionRoomConfig = {}) {
this._transactionManager = new TransactionManager({
storage: config.storage,
defaultTimeout: config.defaultTimeout,
serverId: config.serverId
});
}
get transactions(): TransactionManager {
return this._transactionManager;
}
beginTransaction(options?: TransactionOptions): ITransactionContext {
return this._transactionManager.begin(options);
}
runTransaction<T = unknown>(
builder: (ctx: ITransactionContext) => void | Promise<void>,
options?: TransactionOptions
): Promise<TransactionResult<T>> {
return this._transactionManager.run<T>(builder, options);
}
}

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/**
* @zh 集成模块导出
* @en Integration module exports
*/
export {
withTransactions,
TransactionRoom,
type TransactionRoomConfig,
type ITransactionRoom
} from './RoomTransactionMixin.js';

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/**
* @zh 操作基类
* @en Base operation class
*/
import type {
ITransactionOperation,
ITransactionContext,
OperationResult
} from '../core/types.js';
/**
* @zh 操作基类
* @en Base operation class
*
* @zh 提供通用的操作实现模板
* @en Provides common operation implementation template
*/
export abstract class BaseOperation<TData = unknown, TResult = unknown>
implements ITransactionOperation<TData, TResult>
{
abstract readonly name: string
readonly data: TData;
constructor(data: TData) {
this.data = data;
}
/**
* @zh 验证前置条件(默认通过)
* @en Validate preconditions (passes by default)
*/
async validate(_ctx: ITransactionContext): Promise<boolean> {
return true;
}
/**
* @zh 执行操作
* @en Execute operation
*/
abstract execute(ctx: ITransactionContext): Promise<OperationResult<TResult>>
/**
* @zh 补偿操作
* @en Compensate operation
*/
abstract compensate(ctx: ITransactionContext): Promise<void>
/**
* @zh 创建成功结果
* @en Create success result
*/
protected success(data?: TResult): OperationResult<TResult> {
return { success: true, data };
}
/**
* @zh 创建失败结果
* @en Create failure result
*/
protected failure(error: string, errorCode?: string): OperationResult<TResult> {
return { success: false, error, errorCode };
}
}

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/**
* @zh 货币操作
* @en Currency operation
*/
import type { ITransactionContext, OperationResult } from '../core/types.js';
import { BaseOperation } from './BaseOperation.js';
/**
* @zh 货币操作类型
* @en Currency operation type
*/
export type CurrencyOperationType = 'add' | 'deduct'
/**
* @zh 货币操作数据
* @en Currency operation data
*/
export interface CurrencyOperationData {
/**
* @zh 操作类型
* @en Operation type
*/
type: CurrencyOperationType
/**
* @zh 玩家 ID
* @en Player ID
*/
playerId: string
/**
* @zh 货币类型(如 gold, diamond 等)
* @en Currency type (e.g., gold, diamond)
*/
currency: string
/**
* @zh 数量
* @en Amount
*/
amount: number
/**
* @zh 原因/来源
* @en Reason/source
*/
reason?: string
}
/**
* @zh 货币操作结果
* @en Currency operation result
*/
export interface CurrencyOperationResult {
/**
* @zh 操作前余额
* @en Balance before operation
*/
beforeBalance: number
/**
* @zh 操作后余额
* @en Balance after operation
*/
afterBalance: number
}
/**
* @zh 货币数据提供者接口
* @en Currency data provider interface
*/
export interface ICurrencyProvider {
/**
* @zh 获取货币余额
* @en Get currency balance
*/
getBalance(playerId: string, currency: string): Promise<number>
/**
* @zh 设置货币余额
* @en Set currency balance
*/
setBalance(playerId: string, currency: string, amount: number): Promise<void>
}
/**
* @zh 货币操作
* @en Currency operation
*
* @zh 用于处理货币的增加和扣除
* @en Used for handling currency addition and deduction
*
* @example
* ```typescript
* // 扣除金币
* tx.addOperation(new CurrencyOperation({
* type: 'deduct',
* playerId: 'player1',
* currency: 'gold',
* amount: 100,
* reason: 'purchase_item',
* }))
*
* // 增加钻石
* tx.addOperation(new CurrencyOperation({
* type: 'add',
* playerId: 'player1',
* currency: 'diamond',
* amount: 50,
* }))
* ```
*/
export class CurrencyOperation extends BaseOperation<CurrencyOperationData, CurrencyOperationResult> {
readonly name = 'currency';
private _provider: ICurrencyProvider | null = null;
private _beforeBalance: number = 0;
/**
* @zh 设置货币数据提供者
* @en Set currency data provider
*/
setProvider(provider: ICurrencyProvider): this {
this._provider = provider;
return this;
}
async validate(ctx: ITransactionContext): Promise<boolean> {
if (this.data.amount <= 0) {
return false;
}
if (this.data.type === 'deduct') {
const balance = await this._getBalance(ctx);
return balance >= this.data.amount;
}
return true;
}
async execute(ctx: ITransactionContext): Promise<OperationResult<CurrencyOperationResult>> {
const { type, playerId, currency, amount } = this.data;
this._beforeBalance = await this._getBalance(ctx);
let afterBalance: number;
if (type === 'add') {
afterBalance = this._beforeBalance + amount;
} else {
if (this._beforeBalance < amount) {
return this.failure('Insufficient balance', 'INSUFFICIENT_BALANCE');
}
afterBalance = this._beforeBalance - amount;
}
await this._setBalance(ctx, afterBalance);
ctx.set(`currency:${playerId}:${currency}:before`, this._beforeBalance);
ctx.set(`currency:${playerId}:${currency}:after`, afterBalance);
return this.success({
beforeBalance: this._beforeBalance,
afterBalance
});
}
async compensate(ctx: ITransactionContext): Promise<void> {
await this._setBalance(ctx, this._beforeBalance);
}
private async _getBalance(ctx: ITransactionContext): Promise<number> {
const { playerId, currency } = this.data;
if (this._provider) {
return this._provider.getBalance(playerId, currency);
}
if (ctx.storage) {
const balance = await ctx.storage.get<number>(`player:${playerId}:currency:${currency}`);
return balance ?? 0;
}
return 0;
}
private async _setBalance(ctx: ITransactionContext, amount: number): Promise<void> {
const { playerId, currency } = this.data;
if (this._provider) {
await this._provider.setBalance(playerId, currency, amount);
return;
}
if (ctx.storage) {
await ctx.storage.set(`player:${playerId}:currency:${currency}`, amount);
}
}
}
/**
* @zh 创建货币操作
* @en Create currency operation
*/
export function createCurrencyOperation(data: CurrencyOperationData): CurrencyOperation {
return new CurrencyOperation(data);
}

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/**
* @zh 背包操作
* @en Inventory operation
*/
import type { ITransactionContext, OperationResult } from '../core/types.js';
import { BaseOperation } from './BaseOperation.js';
/**
* @zh 背包操作类型
* @en Inventory operation type
*/
export type InventoryOperationType = 'add' | 'remove' | 'update'
/**
* @zh 物品数据
* @en Item data
*/
export interface ItemData {
/**
* @zh 物品 ID
* @en Item ID
*/
itemId: string
/**
* @zh 数量
* @en Quantity
*/
quantity: number
/**
* @zh 物品属性
* @en Item properties
*/
properties?: Record<string, unknown>
}
/**
* @zh 背包操作数据
* @en Inventory operation data
*/
export interface InventoryOperationData {
/**
* @zh 操作类型
* @en Operation type
*/
type: InventoryOperationType
/**
* @zh 玩家 ID
* @en Player ID
*/
playerId: string
/**
* @zh 物品 ID
* @en Item ID
*/
itemId: string
/**
* @zh 数量
* @en Quantity
*/
quantity: number
/**
* @zh 物品属性(用于更新)
* @en Item properties (for update)
*/
properties?: Record<string, unknown>
/**
* @zh 原因/来源
* @en Reason/source
*/
reason?: string
}
/**
* @zh 背包操作结果
* @en Inventory operation result
*/
export interface InventoryOperationResult {
/**
* @zh 操作前的物品数据
* @en Item data before operation
*/
beforeItem?: ItemData
/**
* @zh 操作后的物品数据
* @en Item data after operation
*/
afterItem?: ItemData
}
/**
* @zh 背包数据提供者接口
* @en Inventory data provider interface
*/
export interface IInventoryProvider {
/**
* @zh 获取物品
* @en Get item
*/
getItem(playerId: string, itemId: string): Promise<ItemData | null>
/**
* @zh 设置物品
* @en Set item
*/
setItem(playerId: string, itemId: string, item: ItemData | null): Promise<void>
/**
* @zh 检查背包容量
* @en Check inventory capacity
*/
hasCapacity?(playerId: string, count: number): Promise<boolean>
}
/**
* @zh 背包操作
* @en Inventory operation
*
* @zh 用于处理物品的添加、移除和更新
* @en Used for handling item addition, removal, and update
*
* @example
* ```typescript
* // 添加物品
* tx.addOperation(new InventoryOperation({
* type: 'add',
* playerId: 'player1',
* itemId: 'sword_001',
* quantity: 1,
* }))
*
* // 移除物品
* tx.addOperation(new InventoryOperation({
* type: 'remove',
* playerId: 'player1',
* itemId: 'potion_hp',
* quantity: 5,
* }))
* ```
*/
export class InventoryOperation extends BaseOperation<InventoryOperationData, InventoryOperationResult> {
readonly name = 'inventory';
private _provider: IInventoryProvider | null = null;
private _beforeItem: ItemData | null = null;
/**
* @zh 设置背包数据提供者
* @en Set inventory data provider
*/
setProvider(provider: IInventoryProvider): this {
this._provider = provider;
return this;
}
async validate(ctx: ITransactionContext): Promise<boolean> {
const { type, quantity } = this.data;
if (quantity <= 0) {
return false;
}
if (type === 'remove') {
const item = await this._getItem(ctx);
return item !== null && item.quantity >= quantity;
}
if (type === 'add' && this._provider?.hasCapacity) {
return this._provider.hasCapacity(this.data.playerId, 1);
}
return true;
}
async execute(ctx: ITransactionContext): Promise<OperationResult<InventoryOperationResult>> {
const { type, playerId, itemId, quantity, properties } = this.data;
this._beforeItem = await this._getItem(ctx);
let afterItem: ItemData | null = null;
switch (type) {
case 'add': {
if (this._beforeItem) {
afterItem = {
...this._beforeItem,
quantity: this._beforeItem.quantity + quantity
};
} else {
afterItem = {
itemId,
quantity,
properties
};
}
break;
}
case 'remove': {
if (!this._beforeItem || this._beforeItem.quantity < quantity) {
return this.failure('Insufficient item quantity', 'INSUFFICIENT_ITEM');
}
const newQuantity = this._beforeItem.quantity - quantity;
if (newQuantity > 0) {
afterItem = {
...this._beforeItem,
quantity: newQuantity
};
} else {
afterItem = null;
}
break;
}
case 'update': {
if (!this._beforeItem) {
return this.failure('Item not found', 'ITEM_NOT_FOUND');
}
afterItem = {
...this._beforeItem,
quantity: quantity > 0 ? quantity : this._beforeItem.quantity,
properties: properties ?? this._beforeItem.properties
};
break;
}
}
await this._setItem(ctx, afterItem);
ctx.set(`inventory:${playerId}:${itemId}:before`, this._beforeItem);
ctx.set(`inventory:${playerId}:${itemId}:after`, afterItem);
return this.success({
beforeItem: this._beforeItem ?? undefined,
afterItem: afterItem ?? undefined
});
}
async compensate(ctx: ITransactionContext): Promise<void> {
await this._setItem(ctx, this._beforeItem);
}
private async _getItem(ctx: ITransactionContext): Promise<ItemData | null> {
const { playerId, itemId } = this.data;
if (this._provider) {
return this._provider.getItem(playerId, itemId);
}
if (ctx.storage) {
return ctx.storage.get<ItemData>(`player:${playerId}:inventory:${itemId}`);
}
return null;
}
private async _setItem(ctx: ITransactionContext, item: ItemData | null): Promise<void> {
const { playerId, itemId } = this.data;
if (this._provider) {
await this._provider.setItem(playerId, itemId, item);
return;
}
if (ctx.storage) {
if (item) {
await ctx.storage.set(`player:${playerId}:inventory:${itemId}`, item);
} else {
await ctx.storage.delete(`player:${playerId}:inventory:${itemId}`);
}
}
}
}
/**
* @zh 创建背包操作
* @en Create inventory operation
*/
export function createInventoryOperation(data: InventoryOperationData): InventoryOperation {
return new InventoryOperation(data);
}

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/**
* @zh 交易操作
* @en Trade operation
*/
import type { ITransactionContext, OperationResult } from '../core/types.js';
import { BaseOperation } from './BaseOperation.js';
import { CurrencyOperation, type CurrencyOperationData, type ICurrencyProvider } from './CurrencyOperation.js';
import { InventoryOperation, type InventoryOperationData, type IInventoryProvider, type ItemData } from './InventoryOperation.js';
/**
* @zh 交易物品
* @en Trade item
*/
export interface TradeItem {
/**
* @zh 物品 ID
* @en Item ID
*/
itemId: string
/**
* @zh 数量
* @en Quantity
*/
quantity: number
}
/**
* @zh 交易货币
* @en Trade currency
*/
export interface TradeCurrency {
/**
* @zh 货币类型
* @en Currency type
*/
currency: string
/**
* @zh 数量
* @en Amount
*/
amount: number
}
/**
* @zh 交易方数据
* @en Trade party data
*/
export interface TradeParty {
/**
* @zh 玩家 ID
* @en Player ID
*/
playerId: string
/**
* @zh 给出的物品
* @en Items to give
*/
items?: TradeItem[]
/**
* @zh 给出的货币
* @en Currencies to give
*/
currencies?: TradeCurrency[]
}
/**
* @zh 交易操作数据
* @en Trade operation data
*/
export interface TradeOperationData {
/**
* @zh 交易 ID
* @en Trade ID
*/
tradeId: string
/**
* @zh 交易发起方
* @en Trade initiator
*/
partyA: TradeParty
/**
* @zh 交易接收方
* @en Trade receiver
*/
partyB: TradeParty
/**
* @zh 原因/备注
* @en Reason/note
*/
reason?: string
}
/**
* @zh 交易操作结果
* @en Trade operation result
*/
export interface TradeOperationResult {
/**
* @zh 交易 ID
* @en Trade ID
*/
tradeId: string
/**
* @zh 交易是否成功
* @en Whether trade succeeded
*/
completed: boolean
}
/**
* @zh 交易数据提供者
* @en Trade data provider
*/
export interface ITradeProvider {
currencyProvider?: ICurrencyProvider
inventoryProvider?: IInventoryProvider
}
/**
* @zh 交易操作
* @en Trade operation
*
* @zh 用于处理玩家之间的物品和货币交换
* @en Used for handling item and currency exchange between players
*
* @example
* ```typescript
* tx.addOperation(new TradeOperation({
* tradeId: 'trade_001',
* partyA: {
* playerId: 'player1',
* items: [{ itemId: 'sword', quantity: 1 }],
* },
* partyB: {
* playerId: 'player2',
* currencies: [{ currency: 'gold', amount: 1000 }],
* },
* }))
* ```
*/
export class TradeOperation extends BaseOperation<TradeOperationData, TradeOperationResult> {
readonly name = 'trade';
private _provider: ITradeProvider | null = null;
private _subOperations: (CurrencyOperation | InventoryOperation)[] = [];
private _executedCount = 0;
/**
* @zh 设置交易数据提供者
* @en Set trade data provider
*/
setProvider(provider: ITradeProvider): this {
this._provider = provider;
return this;
}
async validate(ctx: ITransactionContext): Promise<boolean> {
this._buildSubOperations();
for (const op of this._subOperations) {
const isValid = await op.validate(ctx);
if (!isValid) {
return false;
}
}
return true;
}
async execute(ctx: ITransactionContext): Promise<OperationResult<TradeOperationResult>> {
this._buildSubOperations();
this._executedCount = 0;
try {
for (const op of this._subOperations) {
const result = await op.execute(ctx);
if (!result.success) {
await this._compensateExecuted(ctx);
return this.failure(result.error ?? 'Trade operation failed', 'TRADE_FAILED');
}
this._executedCount++;
}
return this.success({
tradeId: this.data.tradeId,
completed: true
});
} catch (error) {
await this._compensateExecuted(ctx);
const errorMessage = error instanceof Error ? error.message : String(error);
return this.failure(errorMessage, 'TRADE_ERROR');
}
}
async compensate(ctx: ITransactionContext): Promise<void> {
await this._compensateExecuted(ctx);
}
private _buildSubOperations(): void {
if (this._subOperations.length > 0) return;
const { partyA, partyB } = this.data;
if (partyA.items) {
for (const item of partyA.items) {
const removeOp = new InventoryOperation({
type: 'remove',
playerId: partyA.playerId,
itemId: item.itemId,
quantity: item.quantity,
reason: `trade:${this.data.tradeId}:give`
});
const addOp = new InventoryOperation({
type: 'add',
playerId: partyB.playerId,
itemId: item.itemId,
quantity: item.quantity,
reason: `trade:${this.data.tradeId}:receive`
});
if (this._provider?.inventoryProvider) {
removeOp.setProvider(this._provider.inventoryProvider);
addOp.setProvider(this._provider.inventoryProvider);
}
this._subOperations.push(removeOp, addOp);
}
}
if (partyA.currencies) {
for (const curr of partyA.currencies) {
const deductOp = new CurrencyOperation({
type: 'deduct',
playerId: partyA.playerId,
currency: curr.currency,
amount: curr.amount,
reason: `trade:${this.data.tradeId}:give`
});
const addOp = new CurrencyOperation({
type: 'add',
playerId: partyB.playerId,
currency: curr.currency,
amount: curr.amount,
reason: `trade:${this.data.tradeId}:receive`
});
if (this._provider?.currencyProvider) {
deductOp.setProvider(this._provider.currencyProvider);
addOp.setProvider(this._provider.currencyProvider);
}
this._subOperations.push(deductOp, addOp);
}
}
if (partyB.items) {
for (const item of partyB.items) {
const removeOp = new InventoryOperation({
type: 'remove',
playerId: partyB.playerId,
itemId: item.itemId,
quantity: item.quantity,
reason: `trade:${this.data.tradeId}:give`
});
const addOp = new InventoryOperation({
type: 'add',
playerId: partyA.playerId,
itemId: item.itemId,
quantity: item.quantity,
reason: `trade:${this.data.tradeId}:receive`
});
if (this._provider?.inventoryProvider) {
removeOp.setProvider(this._provider.inventoryProvider);
addOp.setProvider(this._provider.inventoryProvider);
}
this._subOperations.push(removeOp, addOp);
}
}
if (partyB.currencies) {
for (const curr of partyB.currencies) {
const deductOp = new CurrencyOperation({
type: 'deduct',
playerId: partyB.playerId,
currency: curr.currency,
amount: curr.amount,
reason: `trade:${this.data.tradeId}:give`
});
const addOp = new CurrencyOperation({
type: 'add',
playerId: partyA.playerId,
currency: curr.currency,
amount: curr.amount,
reason: `trade:${this.data.tradeId}:receive`
});
if (this._provider?.currencyProvider) {
deductOp.setProvider(this._provider.currencyProvider);
addOp.setProvider(this._provider.currencyProvider);
}
this._subOperations.push(deductOp, addOp);
}
}
}
private async _compensateExecuted(ctx: ITransactionContext): Promise<void> {
for (let i = this._executedCount - 1; i >= 0; i--) {
await this._subOperations[i].compensate(ctx);
}
}
}
/**
* @zh 创建交易操作
* @en Create trade operation
*/
export function createTradeOperation(data: TradeOperationData): TradeOperation {
return new TradeOperation(data);
}

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/**
* @zh 操作模块导出
* @en Operations module exports
*/
export { BaseOperation } from './BaseOperation.js';
export {
CurrencyOperation,
createCurrencyOperation,
type CurrencyOperationType,
type CurrencyOperationData,
type CurrencyOperationResult,
type ICurrencyProvider
} from './CurrencyOperation.js';
export {
InventoryOperation,
createInventoryOperation,
type InventoryOperationType,
type InventoryOperationData,
type InventoryOperationResult,
type IInventoryProvider,
type ItemData
} from './InventoryOperation.js';
export {
TradeOperation,
createTradeOperation,
type TradeOperationData,
type TradeOperationResult,
type TradeItem,
type TradeCurrency,
type TradeParty,
type ITradeProvider
} from './TradeOperation.js';

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/**
* @zh 内存存储实现
* @en Memory storage implementation
*
* @zh 用于开发和测试环境,不支持分布式
* @en For development and testing, does not support distributed scenarios
*/
import type {
ITransactionStorage,
TransactionLog,
TransactionState,
OperationLog
} from '../core/types.js';
/**
* @zh 内存存储配置
* @en Memory storage configuration
*/
export interface MemoryStorageConfig {
/**
* @zh 最大事务日志数量
* @en Maximum transaction log count
*/
maxTransactions?: number
}
/**
* @zh 内存存储
* @en Memory storage
*
* @zh 适用于单机开发和测试,数据仅保存在内存中
* @en Suitable for single-machine development and testing, data is stored in memory only
*/
export class MemoryStorage implements ITransactionStorage {
private _transactions: Map<string, TransactionLog> = new Map();
private _data: Map<string, { value: unknown; expireAt?: number }> = new Map();
private _locks: Map<string, { token: string; expireAt: number }> = new Map();
private _maxTransactions: number;
constructor(config: MemoryStorageConfig = {}) {
this._maxTransactions = config.maxTransactions ?? 1000;
}
// =========================================================================
// 分布式锁 | Distributed Lock
// =========================================================================
async acquireLock(key: string, ttl: number): Promise<string | null> {
this._cleanExpiredLocks();
const existing = this._locks.get(key);
if (existing && existing.expireAt > Date.now()) {
return null;
}
const token = `lock_${Date.now()}_${Math.random().toString(36).substring(2)}`;
this._locks.set(key, {
token,
expireAt: Date.now() + ttl
});
return token;
}
async releaseLock(key: string, token: string): Promise<boolean> {
const lock = this._locks.get(key);
if (!lock || lock.token !== token) {
return false;
}
this._locks.delete(key);
return true;
}
// =========================================================================
// 事务日志 | Transaction Log
// =========================================================================
async saveTransaction(tx: TransactionLog): Promise<void> {
if (this._transactions.size >= this._maxTransactions) {
this._cleanOldTransactions();
}
this._transactions.set(tx.id, { ...tx });
}
async getTransaction(id: string): Promise<TransactionLog | null> {
const tx = this._transactions.get(id);
return tx ? { ...tx } : null;
}
async updateTransactionState(id: string, state: TransactionState): Promise<void> {
const tx = this._transactions.get(id);
if (tx) {
tx.state = state;
tx.updatedAt = Date.now();
}
}
async updateOperationState(
transactionId: string,
operationIndex: number,
state: OperationLog['state'],
error?: string
): Promise<void> {
const tx = this._transactions.get(transactionId);
if (tx && tx.operations[operationIndex]) {
tx.operations[operationIndex].state = state;
if (error) {
tx.operations[operationIndex].error = error;
}
if (state === 'executed') {
tx.operations[operationIndex].executedAt = Date.now();
} else if (state === 'compensated') {
tx.operations[operationIndex].compensatedAt = Date.now();
}
tx.updatedAt = Date.now();
}
}
async getPendingTransactions(serverId?: string): Promise<TransactionLog[]> {
const result: TransactionLog[] = [];
for (const tx of this._transactions.values()) {
if (tx.state === 'pending' || tx.state === 'executing') {
if (!serverId || tx.metadata?.serverId === serverId) {
result.push({ ...tx });
}
}
}
return result;
}
async deleteTransaction(id: string): Promise<void> {
this._transactions.delete(id);
}
// =========================================================================
// 数据操作 | Data Operations
// =========================================================================
async get<T>(key: string): Promise<T | null> {
this._cleanExpiredData();
const entry = this._data.get(key);
if (!entry) return null;
if (entry.expireAt && entry.expireAt < Date.now()) {
this._data.delete(key);
return null;
}
return entry.value as T;
}
async set<T>(key: string, value: T, ttl?: number): Promise<void> {
this._data.set(key, {
value,
expireAt: ttl ? Date.now() + ttl : undefined
});
}
async delete(key: string): Promise<boolean> {
return this._data.delete(key);
}
// =========================================================================
// 辅助方法 | Helper methods
// =========================================================================
/**
* @zh 清空所有数据(测试用)
* @en Clear all data (for testing)
*/
clear(): void {
this._transactions.clear();
this._data.clear();
this._locks.clear();
}
/**
* @zh 获取事务数量
* @en Get transaction count
*/
get transactionCount(): number {
return this._transactions.size;
}
private _cleanExpiredLocks(): void {
const now = Date.now();
for (const [key, lock] of this._locks) {
if (lock.expireAt < now) {
this._locks.delete(key);
}
}
}
private _cleanExpiredData(): void {
const now = Date.now();
for (const [key, entry] of this._data) {
if (entry.expireAt && entry.expireAt < now) {
this._data.delete(key);
}
}
}
private _cleanOldTransactions(): void {
const sorted = Array.from(this._transactions.entries())
.sort((a, b) => a[1].createdAt - b[1].createdAt);
const toRemove = sorted
.slice(0, Math.floor(this._maxTransactions * 0.2))
.filter(([_, tx]) => tx.state === 'committed' || tx.state === 'rolledback');
for (const [id] of toRemove) {
this._transactions.delete(id);
}
}
}
/**
* @zh 创建内存存储
* @en Create memory storage
*/
export function createMemoryStorage(config: MemoryStorageConfig = {}): MemoryStorage {
return new MemoryStorage(config);
}

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/**
* @zh MongoDB 存储实现
* @en MongoDB storage implementation
*
* @zh 支持持久化事务日志和查询
* @en Supports persistent transaction logs and queries
*/
import type {
ITransactionStorage,
TransactionLog,
TransactionState,
OperationLog
} from '../core/types.js';
/**
* @zh MongoDB Collection 接口
* @en MongoDB Collection interface
*/
export interface MongoCollection<T> {
findOne(filter: object): Promise<T | null>
find(filter: object): {
toArray(): Promise<T[]>
}
insertOne(doc: T): Promise<{ insertedId: unknown }>
updateOne(filter: object, update: object): Promise<{ modifiedCount: number }>
deleteOne(filter: object): Promise<{ deletedCount: number }>
createIndex(spec: object, options?: object): Promise<string>
}
/**
* @zh MongoDB 数据库接口
* @en MongoDB database interface
*/
export interface MongoDb {
collection<T = unknown>(name: string): MongoCollection<T>
}
/**
* @zh MongoDB 客户端接口
* @en MongoDB client interface
*/
export interface MongoClient {
db(name?: string): MongoDb
close(): Promise<void>
}
/**
* @zh MongoDB 连接工厂
* @en MongoDB connection factory
*/
export type MongoClientFactory = () => MongoClient | Promise<MongoClient>
/**
* @zh MongoDB 存储配置
* @en MongoDB storage configuration
*/
export interface MongoStorageConfig {
/**
* @zh MongoDB 客户端工厂(惰性连接)
* @en MongoDB client factory (lazy connection)
*
* @example
* ```typescript
* import { MongoClient } from 'mongodb'
* const storage = new MongoStorage({
* factory: async () => {
* const client = new MongoClient('mongodb://localhost:27017')
* await client.connect()
* return client
* },
* database: 'game'
* })
* ```
*/
factory: MongoClientFactory
/**
* @zh 数据库名称
* @en Database name
*/
database: string
/**
* @zh 事务日志集合名称
* @en Transaction log collection name
*/
transactionCollection?: string
/**
* @zh 数据集合名称
* @en Data collection name
*/
dataCollection?: string
/**
* @zh 锁集合名称
* @en Lock collection name
*/
lockCollection?: string
}
interface LockDocument {
_id: string
token: string
expireAt: Date
}
interface DataDocument {
_id: string
value: unknown
expireAt?: Date
}
/**
* @zh MongoDB 存储
* @en MongoDB storage
*
* @zh 基于 MongoDB 的事务存储,支持持久化、复杂查询和惰性连接
* @en MongoDB-based transaction storage with persistence, complex queries and lazy connection
*
* @example
* ```typescript
* import { MongoClient } from 'mongodb'
*
* // 创建存储(惰性连接,首次操作时才连接)
* const storage = new MongoStorage({
* factory: async () => {
* const client = new MongoClient('mongodb://localhost:27017')
* await client.connect()
* return client
* },
* database: 'game'
* })
*
* await storage.ensureIndexes()
*
* // 使用后手动关闭
* await storage.close()
*
* // 或使用 await using 自动关闭 (TypeScript 5.2+)
* await using storage = new MongoStorage({ ... })
* // 作用域结束时自动关闭
* ```
*/
export class MongoStorage implements ITransactionStorage {
private _client: MongoClient | null = null;
private _db: MongoDb | null = null;
private _factory: MongoClientFactory;
private _database: string;
private _transactionCollection: string;
private _dataCollection: string;
private _lockCollection: string;
private _closed: boolean = false;
constructor(config: MongoStorageConfig) {
this._factory = config.factory;
this._database = config.database;
this._transactionCollection = config.transactionCollection ?? 'transactions';
this._dataCollection = config.dataCollection ?? 'transaction_data';
this._lockCollection = config.lockCollection ?? 'transaction_locks';
}
// =========================================================================
// 生命周期 | Lifecycle
// =========================================================================
/**
* @zh 获取数据库实例(惰性连接)
* @en Get database instance (lazy connection)
*/
private async _getDb(): Promise<MongoDb> {
if (this._closed) {
throw new Error('MongoStorage is closed');
}
if (!this._db) {
this._client = await this._factory();
this._db = this._client.db(this._database);
}
return this._db;
}
/**
* @zh 关闭存储连接
* @en Close storage connection
*/
async close(): Promise<void> {
if (this._closed) return;
this._closed = true;
if (this._client) {
await this._client.close();
this._client = null;
this._db = null;
}
}
/**
* @zh 支持 await using 语法
* @en Support await using syntax
*/
async [Symbol.asyncDispose](): Promise<void> {
await this.close();
}
/**
* @zh 确保索引存在
* @en Ensure indexes exist
*/
async ensureIndexes(): Promise<void> {
const db = await this._getDb();
const txColl = db.collection<TransactionLog>(this._transactionCollection);
await txColl.createIndex({ state: 1 });
await txColl.createIndex({ 'metadata.serverId': 1 });
await txColl.createIndex({ createdAt: 1 });
const lockColl = db.collection<LockDocument>(this._lockCollection);
await lockColl.createIndex({ expireAt: 1 }, { expireAfterSeconds: 0 });
const dataColl = db.collection<DataDocument>(this._dataCollection);
await dataColl.createIndex({ expireAt: 1 }, { expireAfterSeconds: 0 });
}
// =========================================================================
// 分布式锁 | Distributed Lock
// =========================================================================
async acquireLock(key: string, ttl: number): Promise<string | null> {
const db = await this._getDb();
const coll = db.collection<LockDocument>(this._lockCollection);
const token = `${Date.now()}_${Math.random().toString(36).substring(2)}`;
const expireAt = new Date(Date.now() + ttl);
try {
await coll.insertOne({
_id: key,
token,
expireAt
});
return token;
} catch (error) {
const existing = await coll.findOne({ _id: key });
if (existing && existing.expireAt < new Date()) {
const result = await coll.updateOne(
{ _id: key, expireAt: { $lt: new Date() } },
{ $set: { token, expireAt } }
);
if (result.modifiedCount > 0) {
return token;
}
}
return null;
}
}
async releaseLock(key: string, token: string): Promise<boolean> {
const db = await this._getDb();
const coll = db.collection<LockDocument>(this._lockCollection);
const result = await coll.deleteOne({ _id: key, token });
return result.deletedCount > 0;
}
// =========================================================================
// 事务日志 | Transaction Log
// =========================================================================
async saveTransaction(tx: TransactionLog): Promise<void> {
const db = await this._getDb();
const coll = db.collection<TransactionLog & { _id: string }>(this._transactionCollection);
const existing = await coll.findOne({ _id: tx.id });
if (existing) {
await coll.updateOne(
{ _id: tx.id },
{ $set: { ...tx, _id: tx.id } }
);
} else {
await coll.insertOne({ ...tx, _id: tx.id });
}
}
async getTransaction(id: string): Promise<TransactionLog | null> {
const db = await this._getDb();
const coll = db.collection<TransactionLog & { _id: string }>(this._transactionCollection);
const doc = await coll.findOne({ _id: id });
if (!doc) return null;
const { _id, ...tx } = doc;
return tx as TransactionLog;
}
async updateTransactionState(id: string, state: TransactionState): Promise<void> {
const db = await this._getDb();
const coll = db.collection(this._transactionCollection);
await coll.updateOne(
{ _id: id },
{ $set: { state, updatedAt: Date.now() } }
);
}
async updateOperationState(
transactionId: string,
operationIndex: number,
state: OperationLog['state'],
error?: string
): Promise<void> {
const db = await this._getDb();
const coll = db.collection(this._transactionCollection);
const update: Record<string, unknown> = {
[`operations.${operationIndex}.state`]: state,
updatedAt: Date.now()
};
if (error) {
update[`operations.${operationIndex}.error`] = error;
}
if (state === 'executed') {
update[`operations.${operationIndex}.executedAt`] = Date.now();
} else if (state === 'compensated') {
update[`operations.${operationIndex}.compensatedAt`] = Date.now();
}
await coll.updateOne(
{ _id: transactionId },
{ $set: update }
);
}
async getPendingTransactions(serverId?: string): Promise<TransactionLog[]> {
const db = await this._getDb();
const coll = db.collection<TransactionLog & { _id: string }>(this._transactionCollection);
const filter: Record<string, unknown> = {
state: { $in: ['pending', 'executing'] }
};
if (serverId) {
filter['metadata.serverId'] = serverId;
}
const docs = await coll.find(filter).toArray();
return docs.map(({ _id, ...tx }) => tx as TransactionLog);
}
async deleteTransaction(id: string): Promise<void> {
const db = await this._getDb();
const coll = db.collection(this._transactionCollection);
await coll.deleteOne({ _id: id });
}
// =========================================================================
// 数据操作 | Data Operations
// =========================================================================
async get<T>(key: string): Promise<T | null> {
const db = await this._getDb();
const coll = db.collection<DataDocument>(this._dataCollection);
const doc = await coll.findOne({ _id: key });
if (!doc) return null;
if (doc.expireAt && doc.expireAt < new Date()) {
await coll.deleteOne({ _id: key });
return null;
}
return doc.value as T;
}
async set<T>(key: string, value: T, ttl?: number): Promise<void> {
const db = await this._getDb();
const coll = db.collection<DataDocument>(this._dataCollection);
const doc: DataDocument = {
_id: key,
value
};
if (ttl) {
doc.expireAt = new Date(Date.now() + ttl);
}
const existing = await coll.findOne({ _id: key });
if (existing) {
await coll.updateOne({ _id: key }, { $set: doc });
} else {
await coll.insertOne(doc);
}
}
async delete(key: string): Promise<boolean> {
const db = await this._getDb();
const coll = db.collection(this._dataCollection);
const result = await coll.deleteOne({ _id: key });
return result.deletedCount > 0;
}
}
/**
* @zh 创建 MongoDB 存储
* @en Create MongoDB storage
*/
export function createMongoStorage(config: MongoStorageConfig): MongoStorage {
return new MongoStorage(config);
}

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/**
* @zh Redis 存储实现
* @en Redis storage implementation
*
* @zh 支持分布式锁和快速缓存
* @en Supports distributed locking and fast caching
*/
import type {
ITransactionStorage,
TransactionLog,
TransactionState,
OperationLog
} from '../core/types.js';
/**
* @zh Redis 客户端接口(兼容 ioredis
* @en Redis client interface (compatible with ioredis)
*/
export interface RedisClient {
get(key: string): Promise<string | null>
set(key: string, value: string, ...args: string[]): Promise<string | null>
del(...keys: string[]): Promise<number>
eval(script: string, numkeys: number, ...args: (string | number)[]): Promise<unknown>
hget(key: string, field: string): Promise<string | null>
hset(key: string, ...args: (string | number)[]): Promise<number>
hdel(key: string, ...fields: string[]): Promise<number>
hgetall(key: string): Promise<Record<string, string>>
keys(pattern: string): Promise<string[]>
expire(key: string, seconds: number): Promise<number>
quit(): Promise<string>
}
/**
* @zh Redis 连接工厂
* @en Redis connection factory
*/
export type RedisClientFactory = () => RedisClient | Promise<RedisClient>
/**
* @zh Redis 存储配置
* @en Redis storage configuration
*/
export interface RedisStorageConfig {
/**
* @zh Redis 客户端工厂(惰性连接)
* @en Redis client factory (lazy connection)
*
* @example
* ```typescript
* import Redis from 'ioredis'
* const storage = new RedisStorage({
* factory: () => new Redis('redis://localhost:6379')
* })
* ```
*/
factory: RedisClientFactory
/**
* @zh 键前缀
* @en Key prefix
*/
prefix?: string
/**
* @zh 事务日志过期时间(秒)
* @en Transaction log expiration time in seconds
*/
transactionTTL?: number
}
const LOCK_SCRIPT = `
if redis.call("get", KEYS[1]) == ARGV[1] then
return redis.call("del", KEYS[1])
else
return 0
end
`;
/**
* @zh Redis 存储
* @en Redis storage
*
* @zh 基于 Redis 的分布式事务存储,支持分布式锁和惰性连接
* @en Redis-based distributed transaction storage with distributed locking and lazy connection
*
* @example
* ```typescript
* import Redis from 'ioredis'
*
* // 创建存储(惰性连接,首次操作时才连接)
* const storage = new RedisStorage({
* factory: () => new Redis('redis://localhost:6379')
* })
*
* // 使用后手动关闭
* await storage.close()
*
* // 或使用 await using 自动关闭 (TypeScript 5.2+)
* await using storage = new RedisStorage({
* factory: () => new Redis('redis://localhost:6379')
* })
* // 作用域结束时自动关闭
* ```
*/
export class RedisStorage implements ITransactionStorage {
private _client: RedisClient | null = null;
private _factory: RedisClientFactory;
private _prefix: string;
private _transactionTTL: number;
private _closed: boolean = false;
constructor(config: RedisStorageConfig) {
this._factory = config.factory;
this._prefix = config.prefix ?? 'tx:';
this._transactionTTL = config.transactionTTL ?? 86400; // 24 hours
}
// =========================================================================
// 生命周期 | Lifecycle
// =========================================================================
/**
* @zh 获取 Redis 客户端(惰性连接)
* @en Get Redis client (lazy connection)
*/
private async _getClient(): Promise<RedisClient> {
if (this._closed) {
throw new Error('RedisStorage is closed');
}
if (!this._client) {
this._client = await this._factory();
}
return this._client;
}
/**
* @zh 关闭存储连接
* @en Close storage connection
*/
async close(): Promise<void> {
if (this._closed) return;
this._closed = true;
if (this._client) {
await this._client.quit();
this._client = null;
}
}
/**
* @zh 支持 await using 语法
* @en Support await using syntax
*/
async [Symbol.asyncDispose](): Promise<void> {
await this.close();
}
// =========================================================================
// 分布式锁 | Distributed Lock
// =========================================================================
async acquireLock(key: string, ttl: number): Promise<string | null> {
const client = await this._getClient();
const lockKey = `${this._prefix}lock:${key}`;
const token = `${Date.now()}_${Math.random().toString(36).substring(2)}`;
const ttlSeconds = Math.ceil(ttl / 1000);
const result = await client.set(lockKey, token, 'NX', 'EX', String(ttlSeconds));
return result === 'OK' ? token : null;
}
async releaseLock(key: string, token: string): Promise<boolean> {
const client = await this._getClient();
const lockKey = `${this._prefix}lock:${key}`;
const result = await client.eval(LOCK_SCRIPT, 1, lockKey, token);
return result === 1;
}
// =========================================================================
// 事务日志 | Transaction Log
// =========================================================================
async saveTransaction(tx: TransactionLog): Promise<void> {
const client = await this._getClient();
const key = `${this._prefix}tx:${tx.id}`;
await client.set(key, JSON.stringify(tx));
await client.expire(key, this._transactionTTL);
if (tx.metadata?.serverId) {
const serverKey = `${this._prefix}server:${tx.metadata.serverId}:txs`;
await client.hset(serverKey, tx.id, String(tx.createdAt));
}
}
async getTransaction(id: string): Promise<TransactionLog | null> {
const client = await this._getClient();
const key = `${this._prefix}tx:${id}`;
const data = await client.get(key);
return data ? JSON.parse(data) : null;
}
async updateTransactionState(id: string, state: TransactionState): Promise<void> {
const tx = await this.getTransaction(id);
if (tx) {
tx.state = state;
tx.updatedAt = Date.now();
await this.saveTransaction(tx);
}
}
async updateOperationState(
transactionId: string,
operationIndex: number,
state: OperationLog['state'],
error?: string
): Promise<void> {
const tx = await this.getTransaction(transactionId);
if (tx && tx.operations[operationIndex]) {
tx.operations[operationIndex].state = state;
if (error) {
tx.operations[operationIndex].error = error;
}
if (state === 'executed') {
tx.operations[operationIndex].executedAt = Date.now();
} else if (state === 'compensated') {
tx.operations[operationIndex].compensatedAt = Date.now();
}
tx.updatedAt = Date.now();
await this.saveTransaction(tx);
}
}
async getPendingTransactions(serverId?: string): Promise<TransactionLog[]> {
const client = await this._getClient();
const result: TransactionLog[] = [];
if (serverId) {
const serverKey = `${this._prefix}server:${serverId}:txs`;
const txIds = await client.hgetall(serverKey);
for (const id of Object.keys(txIds)) {
const tx = await this.getTransaction(id);
if (tx && (tx.state === 'pending' || tx.state === 'executing')) {
result.push(tx);
}
}
} else {
const pattern = `${this._prefix}tx:*`;
const keys = await client.keys(pattern);
for (const key of keys) {
const data = await client.get(key);
if (data) {
const tx: TransactionLog = JSON.parse(data);
if (tx.state === 'pending' || tx.state === 'executing') {
result.push(tx);
}
}
}
}
return result;
}
async deleteTransaction(id: string): Promise<void> {
const client = await this._getClient();
const key = `${this._prefix}tx:${id}`;
const tx = await this.getTransaction(id);
await client.del(key);
if (tx?.metadata?.serverId) {
const serverKey = `${this._prefix}server:${tx.metadata.serverId}:txs`;
await client.hdel(serverKey, id);
}
}
// =========================================================================
// 数据操作 | Data Operations
// =========================================================================
async get<T>(key: string): Promise<T | null> {
const client = await this._getClient();
const fullKey = `${this._prefix}data:${key}`;
const data = await client.get(fullKey);
return data ? JSON.parse(data) : null;
}
async set<T>(key: string, value: T, ttl?: number): Promise<void> {
const client = await this._getClient();
const fullKey = `${this._prefix}data:${key}`;
if (ttl) {
const ttlSeconds = Math.ceil(ttl / 1000);
await client.set(fullKey, JSON.stringify(value), 'EX', String(ttlSeconds));
} else {
await client.set(fullKey, JSON.stringify(value));
}
}
async delete(key: string): Promise<boolean> {
const client = await this._getClient();
const fullKey = `${this._prefix}data:${key}`;
const result = await client.del(fullKey);
return result > 0;
}
}
/**
* @zh 创建 Redis 存储
* @en Create Redis storage
*/
export function createRedisStorage(config: RedisStorageConfig): RedisStorage {
return new RedisStorage(config);
}

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/**
* @zh 存储模块导出
* @en Storage module exports
*/
export { MemoryStorage, createMemoryStorage, type MemoryStorageConfig } from './MemoryStorage.js';
export { RedisStorage, createRedisStorage, type RedisStorageConfig, type RedisClient } from './RedisStorage.js';
export { MongoStorage, createMongoStorage, type MongoStorageConfig, type MongoDb, type MongoCollection } from './MongoStorage.js';

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/**
* @zh Transaction 模块服务令牌
* @en Transaction module service tokens
*/
import { createServiceToken } from '@esengine/ecs-framework';
import type { TransactionManager } from './core/TransactionManager.js';
import type { ITransactionStorage } from './core/types.js';
/**
* @zh 事务管理器令牌
* @en Transaction manager token
*/
export const TransactionManagerToken = createServiceToken<TransactionManager>('transactionManager');
/**
* @zh 事务存储令牌
* @en Transaction storage token
*/
export const TransactionStorageToken = createServiceToken<ITransactionStorage>('transactionStorage');

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