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新增 macOS 版 crontab-ui

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摘要：
網頁版排程與程序管理面板（macOS 原版），操作系統 crontab 並整合 PM2、Node.js 程序、Docker 與 log 檢視。

說明：
- Crontab 頁籤直接讀寫系統 crontab，任務由系統 cron 執行
- 監聽 port 以 lsof 偵測、程序清單用 ps aux、結束程序用 kill
- 附 README 說明安裝、PM2 常駐與運作方式

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
This commit is contained in:
JianMiau
2026-07-13 12:32:43 +08:00
co-authored by Claude Fable 5
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# Crontab UI (macOS)
網頁版的排程與程序管理面板，直接操作 macOS 的系統 `crontab`，並整合 PM2、Node.js 程序、Docker 與 log 檢視。
單一 Node.js 伺服器（Express）+ 單一 HTML 前端，無框架、無建置步驟。
> Windows 移植版請見 `master` 分支。
## 功能
| 頁籤 | 說明 |
|---|---|
| ⏰ Crontab | 讀寫**系統 crontab**（`crontab -l` / `crontab <file>`），支援新增、編輯、啟用／停用、刪除、任務備註（label） |
| 🟢 PM2 | 列出 PM2 程序（狀態、PID、CPU、記憶體、重啟次數、監聽 port），可啟動／停止／重啟／刪除 |
| 🟡 Node.js | 列出系統上所有 node / bun 程序（`ps aux`），可結束程序（`kill -15` / `kill -9`） |
| 🐳 Docker | 列出容器並可啟動／停止／重啟（需安裝 Docker） |
| 📋 Log | 瀏覽 log 目錄下的 `.log` 檔案，支援 tail 與自動刷新 |
## 安裝與執行
需求：Node.js 18+、macOS（或其他有 crontab 的 Unix 系統）
```bash
npm install
node server.js
```
開啟 <http://localhost:3789>
### 用 PM2 背景常駐（建議）
```bash
npm install -g pm2
pm2 start server.js --name crontab-ui
pm2 save
pm2 startup # 依照輸出的指令設定開機自動啟動（launchd）
```
## 環境變數
| 變數 | 預設值 | 說明 |
|---|---|---|
| `PORT` | `3789` | 網頁伺服器 port |
| `LOG_DIR` | `/Volumes/HDD/Claude/logs` | Log 頁籤讀取的目錄 |
## 運作方式
- 排程任務由**系統 cron** 執行，本工具只負責讀寫 crontab 內容；伺服器停止不影響排程執行
- 任務上方緊鄰的 `#` 註解行會被視為該任務的備註（label），在 UI 中一併顯示與編輯
- 停用任務 = 在該行前面加 `#`，啟用 = 移除
- 監聽 port 以 `lsof -iTCP -sTCP:LISTEN` 偵測後對應到 PM2 程序
## 專案結構
```
crontab-ui/
├── server.js # Express API（crontab / pm2 / ps / docker / logs）
└── public/
└── index.html # 前端（單檔，無建置）
```
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package.json
+11
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@@ -0,0 +1,11 @@
{
"name": "crontab-ui",
"version": "1.0.0",
"type": "commonjs",
"scripts": {
"start": "node server.js"
},
"dependencies": {
"express": "^4.18.2"
}
}
public/index.html
+1201
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server.js
+424
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const express = require('express');
const { exec } = require('child_process');
const path = require('path');
const fs = require('fs');
const app = express();
const PORT = process.env.PORT || 3789;
app.use(express.json());
app.use(express.static(path.join(__dirname, 'public')));
// ── 判斷是否為 cron 格式 ──────────────────────────────────
function isCronFormat(content) {
if (!content) return false;
if (content.startsWith('@')) return /^@\w+\s+\S/.test(content);
return /^[\d\*\/\-,]+\s+[\d\*\/\-,]+\s+[\d\*\/\-,]+\s+[\d\*\/\-,]+\s+[\d\*\/\-,]+\s+\S/.test(content);
}
// ── 解析 crontab 文字 ─────────────────────────────────────
function parseCrontab(raw) {
const lines = raw.split('\n');
const labelLineSet = new Set(); // 屬於某個 cron 任務的 label 行
// 第一輪：標記所有緊接在 cron 行前面的連續 comment 行
for (let i = 0; i < lines.length; i++) {
const trimmed = lines[i].trim();
if (!trimmed) continue;
const disabled = trimmed.startsWith('#');
const content = disabled ? trimmed.replace(/^#+\s*/, '').trim() : trimmed;
if (!isCronFormat(content)) continue;
// 往前找所有連續的 comment 行（中間沒有空行）
let j = i - 1;
while (j >= 0) {
const t = lines[j].trim();
if (!t) break; // 空行就停
if (t.startsWith('#') && !isCronFormat(t.replace(/^#+\s*/, '').trim())) {
labelLineSet.add(j);
j--;
} else {
break;
}
}
}
// 第二輪：建立 entries
const entries = [];
for (let i = 0; i < lines.length; i++) {
const line = lines[i];
const trimmed = line.trim();
if (!trimmed) continue;
if (labelLineSet.has(i)) continue; // label 行由 cron entry 帶走
const disabled = trimmed.startsWith('#');
const content = disabled ? trimmed.replace(/^#+\s*/, '').trim() : trimmed;
if (isCronFormat(content)) {
const entry = parseCronLine(i, line, content, disabled);
// 收集緊接在上方的 label 行（由小到大排列）
const labelIndices = [];
let j = i - 1;
while (j >= 0 && labelLineSet.has(j)) {
labelIndices.unshift(j);
j--;
}
if (labelIndices.length > 0) {
entry.label = labelIndices
.map(idx => lines[idx].trim().replace(/^#+\s*/, ''))
.join('\n');
entry.labelIndices = labelIndices;
}
entries.push(entry);
} else {
entries.push({ index: i, type: 'comment', raw: line, text: trimmed });
}
}
return entries;
}
function parseCronLine(index, raw, content, disabled) {
let schedule, command, scheduleDesc;
if (content.startsWith('@')) {
const spaceIdx = content.indexOf(' ');
schedule = content.slice(0, spaceIdx);
command = content.slice(spaceIdx + 1).trim();
const macros = {
'@reboot': '開機時執行', '@yearly': '每年', '@annually': '每年',
'@monthly': '每月1日', '@weekly': '每週日', '@daily': '每天',
'@midnight': '每天', '@hourly': '每小時',
};
scheduleDesc = macros[schedule] || schedule;
} else {
const parts = content.split(/\s+/);
const [min, hour, day, month, weekday, ...rest] = parts;
schedule = `${min} ${hour} ${day} ${month} ${weekday}`;
command = rest.join(' ');
scheduleDesc = describeSchedule(min, hour, day, month, weekday);
}
return { index, type: 'cron', raw, schedule, command, scheduleDesc, disabled, label: '', labelIndices: [] };
}
function describeSchedule(min, hour, day, month, weekday) {
const wd = ['日', '一', '二', '三', '四', '五', '六'];
const parts = [];
if (weekday !== '*') {
parts.push(`每週${weekday.split(',').map(n => wd[parseInt(n)] || n).join('、')}`);
} else if (day !== '*') {
parts.push(`每月 ${day} 日`);
} else {
parts.push('每天');
}
if (hour !== '*' && min !== '*') parts.push(`${hour}:${String(min).padStart(2, '0')}`);
else if (hour !== '*') parts.push(`${hour} 時`);
else if (min !== '*') parts.push(`每小時第 ${min} 分`);
if (month !== '*') parts.unshift(`${month} 月`);
return parts.join(' ');
}
// ── 工具 ─────────────────────────────────────────────────
function getCrontabLines(cb) {
exec('crontab -l 2>/dev/null || echo ""', (err, stdout) => {
cb((stdout || '').split('\n'));
});
}
function applyLines(lines, res) {
const content = lines.join('\n');
console.log('[applyLines] writing crontab:');
lines.forEach((l, i) => console.log(` [${i}] ${JSON.stringify(l)}`));
try {
const tmpFile = `/tmp/crontab_ui_${Date.now()}.txt`;
fs.writeFileSync(tmpFile, content);
const result = require('child_process').execSync(`crontab ${tmpFile} 2>&1`).toString();
fs.unlinkSync(tmpFile);
res.json({ success: true });
} catch (e) {
// 讀出檔案內容給 error message
const tmpFiles = require('child_process')
.execSync('ls /tmp/crontab_ui_*.txt 2>/dev/null || echo ""')
.toString().trim().split('\n').filter(Boolean);
let fileContent = '';
try {
if (tmpFiles.length > 0) fileContent = fs.readFileSync(tmpFiles[tmpFiles.length - 1], 'utf-8');
} catch {}
console.error('[applyLines] error:', e.message);
if (fileContent) console.error('[applyLines] file content:\n' + fileContent);
res.status(500).json({ error: e.message, fileContent });
}
}
// label 文字 → 陣列的 # 行
function labelToLines(label) {
if (!label || !label.trim()) return [];
return label.split('\n').filter(l => l.trim()).map(l => `# ${l.trim()}`);
}
// ── GET /api/crontab ──────────────────────────────────────
app.get('/api/crontab', (req, res) => {
exec('crontab -l 2>/dev/null || echo ""', (err, stdout) => {
const raw = stdout || '';
res.json({ raw, entries: parseCrontab(raw) });
});
});
// ── POST /api/crontab/toggle ──────────────────────────────
app.post('/api/crontab/toggle', (req, res) => {
const { index } = req.body;
if (index === undefined) return res.status(400).json({ error: 'index required' });
getCrontabLines((lines) => {
if (index < 0 || index >= lines.length) return res.status(404).json({ error: 'not found' });
const t = lines[index].trim();
lines[index] = t.startsWith('#') ? t.replace(/^#+\s*/, '') : '# ' + lines[index];
applyLines(lines, res);
});
});
// ── DELETE /api/crontab/:index ────────────────────────────
// body: { labelIndices?: number[] }
app.delete('/api/crontab/:index', (req, res) => {
const cronIndex = parseInt(req.params.index);
const labelIndices = req.body?.labelIndices || [];
getCrontabLines((lines) => {
if (isNaN(cronIndex) || cronIndex < 0 || cronIndex >= lines.length)
return res.status(404).json({ error: 'not found' });
const toDelete = [...labelIndices, cronIndex].sort((a, b) => b - a);
toDelete.forEach(idx => { if (idx >= 0 && idx < lines.length) lines.splice(idx, 1); });
applyLines(lines, res);
});
});
// ── PUT /api/crontab/:index ───────────────────────────────
// body: { schedule, command, label, labelIndices?: number[] }
app.put('/api/crontab/:index', (req, res) => {
const cronIndex = parseInt(req.params.index);
const { schedule, command, label, labelIndices = [] } = req.body;
console.log('[PUT] index=%d schedule=%j command=%j label=%j labelIndices=%j',
cronIndex, schedule, command, label, labelIndices);
if (!schedule || !command) return res.status(400).json({ error: 'schedule and command required' });
getCrontabLines((lines) => {
if (isNaN(cronIndex) || cronIndex < 0 || cronIndex >= lines.length)
return res.status(404).json({ error: 'not found' });
const wasDisabled = lines[cronIndex].trim().startsWith('#');
const newCronLine = wasDisabled ? `# ${schedule} ${command}` : `${schedule} ${command}`;
// 所有要移除的行（倒序）
const allRemove = [...labelIndices, cronIndex].sort((a, b) => b - a);
const insertAt = Math.min(...allRemove);
allRemove.forEach(idx => lines.splice(idx, 1));
// 重建：新 label 行 + cron 行
const newLines = [...labelToLines(label), newCronLine];
lines.splice(insertAt, 0, ...newLines);
applyLines(lines, res);
});
});
// ── POST /api/crontab/add ─────────────────────────────────
// body: { schedule, command, label? }
app.post('/api/crontab/add', (req, res) => {
const { schedule, command, label } = req.body;
if (!schedule || !command) return res.status(400).json({ error: 'schedule and command required' });
getCrontabLines((lines) => {
while (lines.length && !lines[lines.length - 1].trim()) lines.pop();
labelToLines(label).forEach(l => lines.push(l));
lines.push(`${schedule} ${command}`);
lines.push('');
applyLines(lines, res);
});
});
// ── GET /api/pm2 ─────────────────────────────────────────
app.get('/api/pm2', (req, res) => {
exec('pm2 jlist 2>/dev/null', (err, stdout) => {
if (err) return res.json({ processes: [], error: err.message });
try {
const list = JSON.parse(stdout || '[]');
const processes = list.map(p => ({
id: p.pm_id,
name: p.name,
status: p.pm2_env?.status || 'unknown',
pid: p.pid,
cpu: p.monit?.cpu ?? '-',
memory: p.monit?.memory ?? 0,
restarts: p.pm2_env?.restart_time ?? 0,
uptime: p.pm2_env?.pm_uptime ?? null,
mode: p.pm2_env?.exec_mode || 'fork',
script: p.pm2_env?.pm_exec_path || p.pm2_env?.script || '',
ports: [],
}));
// 用 lsof 取得所有 LISTEN port，再依 PID 對應
const pids = processes.filter(p => p.pid).map(p => p.pid).join(',');
if (!pids) return res.json({ processes });
exec(`lsof -iTCP -sTCP:LISTEN -nP -p ${pids} 2>/dev/null`, (e2, lsofOut) => {
// 解析 lsof 輸出：每行取 PID 和 NAME（*:PORT 或 addr:PORT）
const portMap = {}; // pid → [port, ...]
(lsofOut || '').split('\n').forEach(line => {
// 格式: COMMAND PID USER ... NAME (LISTEN)
// NAME 可能是 *:3000 或 localhost:3000，後面跟著 (LISTEN)
const m = line.match(/\s+(\d+)\s+\S+\s+.*?:(\d+)\s+\(LISTEN\)/);
if (!m) return;
const pid = parseInt(m[1]);
const port = m[2];
if (pid && port) {
if (!portMap[pid]) portMap[pid] = [];
if (!portMap[pid].includes(port)) portMap[pid].push(port);
}
});
processes.forEach(p => {
if (portMap[p.pid]) p.ports = portMap[p.pid];
});
res.json({ processes });
});
} catch (e) {
res.json({ processes: [], error: e.message });
}
});
});
// ── POST /api/pm2/:action ─────────────────────────────────
// action: start | stop | restart | delete
app.post('/api/pm2/:action', (req, res) => {
const { action } = req.params;
const { name } = req.body;
if (!name) return res.status(400).json({ error: 'name required' });
const allowed = ['start', 'stop', 'restart', 'delete'];
if (!allowed.includes(action)) return res.status(400).json({ error: 'invalid action' });
exec(`pm2 ${action} ${JSON.stringify(name)} 2>&1`, (err, stdout) => {
if (err) return res.status(500).json({ error: stdout || err.message });
res.json({ success: true });
});
});
// ── GET /api/node ─────────────────────────────────────────
app.get('/api/node', (req, res) => {
exec("ps aux | grep -E '[n]ode|[b]un' | grep -v grep", (err, stdout) => {
const lines = (stdout || '').trim().split('\n').filter(Boolean);
const processes = lines.map(line => {
const cols = line.trim().split(/\s+/);
const pid = cols[1];
const cpu = cols[2];
const mem = cols[3];
const started = cols[8];
const time = cols[9];
const cmd = cols.slice(10).join(' ');
return { pid, cpu, mem, started, time, cmd };
}).filter(p => p.pid && p.pid !== String(process.pid)); // 排除自己
res.json({ processes });
});
});
// ── POST /api/node/kill ───────────────────────────────────
app.post('/api/node/kill', (req, res) => {
const { pid, force } = req.body;
if (!pid) return res.status(400).json({ error: 'pid required' });
const sig = force ? '-9' : '-15';
exec(`kill ${sig} ${parseInt(pid)} 2>&1`, (err, stdout) => {
if (err) return res.status(500).json({ error: stdout || err.message });
res.json({ success: true });
});
});
// ── GET /api/docker ──────────────────────────────────────
app.get('/api/docker', (req, res) => {
const format = '{{json .}}';
exec(`docker ps -a --format ${JSON.stringify(format)} 2>&1`, (err, stdout) => {
if (err) return res.json({ containers: [], error: stdout.trim() || err.message });
try {
const containers = (stdout || '')
.split('\n')
.filter(Boolean)
.map(line => JSON.parse(line))
.map(container => ({
id: container.ID,
name: container.Names,
image: container.Image,
status: container.Status,
state: (container.State || 'unknown').toLowerCase(),
ports: container.Ports || '',
command: container.Command || '',
createdAt: container.CreatedAt || '',
runningFor: container.RunningFor || '',
}));
res.json({ containers });
} catch (e) {
res.json({ containers: [], error: e.message });
}
});
});
// ── POST /api/docker/:action ─────────────────────────────
// action: start | stop | restart
app.post('/api/docker/:action', (req, res) => {
const { action } = req.params;
const { id } = req.body;
const allowed = ['start', 'stop', 'restart'];
if (!allowed.includes(action)) return res.status(400).json({ error: 'invalid action' });
if (!id) return res.status(400).json({ error: 'id required' });
exec(`docker ${action} ${JSON.stringify(id)} 2>&1`, (err, stdout) => {
if (err) return res.status(500).json({ error: stdout.trim() || err.message });
res.json({ success: true });
});
});
// ── Log API ───────────────────────────────────────────────
const LOG_DIR = process.env.LOG_DIR || '/Volumes/HDD/Claude/logs';
app.get('/api/logs', (req, res) => {
try {
if (!fs.existsSync(LOG_DIR)) return res.json([]);
const files = fs.readdirSync(LOG_DIR)
.filter(f => f.endsWith('.log'))
.map(f => {
const stat = fs.statSync(path.join(LOG_DIR, f));
return { name: f, size: stat.size, mtime: stat.mtimeMs };
})
.sort((a, b) => b.mtime - a.mtime);
res.json(files);
} catch (err) {
res.status(500).json({ error: err.message });
}
});
app.get('/api/logs/:filename', (req, res) => {
const filename = path.basename(req.params.filename); // 防止路徑穿越
const filepath = path.join(LOG_DIR, filename);
if (!filepath.startsWith(LOG_DIR)) return res.status(403).json({ error: 'forbidden' });
try {
if (!fs.existsSync(filepath)) return res.status(404).json({ error: '找不到檔案' });
const lines = parseInt(req.query.lines) || 200;
const content = fs.readFileSync(filepath, 'utf-8');
const allLines = content.split('\n');
const tail = allLines.slice(-lines).join('\n');
res.json({ filename, lines: allLines.length, content: tail });
} catch (err) {
res.status(500).json({ error: err.message });
}
});
app.use('/api', (req, res) => {
res.status(404).json({ error: `API not found: ${req.method} ${req.originalUrl}` });
});
app.listen(PORT, () => {
console.log(`✅ Crontab UI 已啟動：http://localhost:${PORT}`);
});