commit 41ab88abbb98c0e6e9d8fbd871681ed96a45bfa0 Author: JianMiau Date: Mon Jul 13 12:30:30 2026 +0800 新增 Windows 版 crontab-ui 摘要： 從 macOS 版移植的網頁排程與程序管理面板，可在 Windows 原生執行。 說明： - Windows 無系統 cron，改為本地檔案 crontab.txt 儲存 + 伺服器內建排程器執行（支援五欄位語法與 @ 巨集，@reboot 於伺服器啟動時執行） - lsof → netstat -ano、ps aux → PowerShell Get-CimInstance、kill → taskkill - PM2 / Docker 指令跨平台，維持不變 - 前端：PM2 頁籤設為首頁；script 路徑僅顯示檔名，滑鼠停留顯示完整路徑；port 連結改用目前主機名 Co-Authored-By: Claude Fable 5 diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..1dcec24 --- /dev/null +++ b/.gitignore @@ -0,0 +1,4 @@ +node_modules/ +logs/ +crontab.txt +*.stackdump diff --git a/README.md b/README.md new file mode 100644 index 0000000..b882d03 --- /dev/null +++ b/README.md @@ -0,0 +1,80 @@ +# Crontab UI (Windows) + +網頁版的排程與程序管理面板，移植自 macOS 版 crontab-ui，改為在 Windows 上原生執行。 + +單一 Node.js 伺服器（Express）+ 單一 HTML 前端，無框架、無建置步驟。 + +## 功能 + +| 頁籤 | 說明 | +|---|---| +| 🟢 PM2（首頁） | 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 | +| ⏰ Crontab | 以 cron 語法管理排程任務，支援新增、編輯、啟用／停用、刪除、任務備註（label） | +| 🟡 Node.js | 列出系統上所有 node / bun 程序，可結束程序（taskkill） | +| 🐳 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+、Windows + +```bash +npm install +node server.js +``` + +開啟 + +### 用 PM2 背景常駐（建議） + +```bash +npm install -g pm2 pm2-windows-startup +pm2 start server.js --name crontab-ui +pm2 save +pm2-startup install # 登入 Windows 後自動啟動 +``` + +## 環境變數 + +| 變數 | 預設值 | 說明 | +|---|---|---| +| `PORT` | `3789` | 網頁伺服器 port | +| `CRONTAB_FILE` | `<專案目錄>\crontab.txt` | 排程任務儲存檔 | +| `LOG_DIR` | `<專案目錄>\logs` | Log 頁籤讀取的目錄，排程執行紀錄 `cron.log` 也寫在這裡 | + +## 排程機制（與 macOS 版的差異） + +Windows 沒有系統 cron，本版本改為： + +- 任務儲存在本地檔案 `crontab.txt`（格式與 crontab 完全相同，含 `#` 停用與備註行） +- 伺服器**內建排程器**，每分鐘比對一次並以 `cmd.exe` 執行到期的指令 +- 執行結果（stdout / stderr / 錯誤）寫入 `logs\cron.log`，可直接在 UI 的 Log 頁籤查看 + +支援的 cron 語法： + +- 五欄位：`分 時 日 月 週`，可用 `*`、清單 `1,15`、範圍 `9-17`、步進 `*/5`、組合 `1-5/2` +- 巨集：`@hourly`、`@daily`／`@midnight`、`@weekly`、`@monthly`、`@yearly`／`@annually` +- `@reboot`：改為「伺服器啟動時」執行一次 +- 日與週同時指定時，符合其一即執行（標準 cron 行為） + +> ⚠️ 排程器跟著伺服器運行：伺服器停止期間的任務不會補跑。請搭配 PM2 常駐。 + +其他系統層替換： + +| 功能 | macOS 版 | Windows 版 | +|---|---|---| +| 排程儲存／執行 | 系統 `crontab` + cron | 本地檔案 + 內建排程器 | +| 監聽 port 偵測 | `lsof` | `netstat -ano` | +| 程序清單 | `ps aux` | PowerShell `Get-CimInstance Win32_Process` | +| 結束程序 | `kill -15` / `-9` | `taskkill` / `taskkill /F /T` | + +## 專案結構 + +``` +crontab-ui/ +├── server.js # Express API + 內建 cron 排程器 +├── public/ +│ └── index.html # 前端（單檔，無建置） +├── crontab.txt # 排程任務（執行時自動建立，不進版控） +└── logs/ # log 目錄（不進版控） +``` diff --git a/package-lock.json b/package-lock.json new file mode 100644 index 0000000..2bc93fc --- /dev/null +++ b/package-lock.json @@ -0,0 +1,828 @@ +{ + "name": "crontab-ui", + "version": "1.0.0", + "lockfileVersion": 3, + "requires": true, + "packages": { + "": { + "name": "crontab-ui", + "version": "1.0.0", + "dependencies": { + "express": 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+
+
+
+

+
+
+
+
diff --git a/server.js b/server.js
new file mode 100644
index 0000000..836fcf0
--- /dev/null
+++ b/server.js
@@ -0,0 +1,535 @@
+const express = require('express');
+const { exec, execFile } = require('child_process');
+const path = require('path');
+const fs = require('fs');
+
+const app = express();
+const PORT = process.env.PORT || 3789;
+
+// Windows 版：crontab 內容存在本地檔案，由內建排程器執行
+const CRONTAB_FILE = process.env.CRONTAB_FILE || path.join(__dirname, 'crontab.txt');
+const LOG_DIR = process.env.LOG_DIR || path.join(__dirname, 'logs');
+
+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(' ');
+}
+
+// ── 內建排程器 ────────────────────────────────────────────
+// macro → 5 欄位（@reboot 於伺服器啟動時執行）
+const MACRO_MAP = {
+  '@yearly': '0 0 1 1 *', '@annually': '0 0 1 1 *',
+  '@monthly': '0 0 1 * *', '@weekly': '0 0 * * 0',
+  '@daily': '0 0 * * *', '@midnight': '0 0 * * *',
+  '@hourly': '0 * * * *',
+};
+
+// 解析單一 cron 欄位（*、*/n、a-b、a-b/n、a,b,c），回傳允許值 Set；null 表示格式錯誤
+function parseField(field, min, max) {
+  const values = new Set();
+  for (const part of field.split(',')) {
+    const m = part.match(/^(\*|\d+(?:-\d+)?)(?:\/(\d+))?$/);
+    if (!m) return null;
+    const step = m[2] ? parseInt(m[2]) : 1;
+    if (step < 1) return null;
+    let lo, hi;
+    if (m[1] === '*') { lo = min; hi = max; }
+    else if (m[1].includes('-')) { [lo, hi] = m[1].split('-').map(Number); }
+    else { lo = hi = parseInt(m[1]); if (m[2]) hi = max; } // "a/n" 視為 a-max/n
+    if (lo < min || hi > max || lo > hi) return null;
+    for (let v = lo; v <= hi; v += step) values.add(v);
+  }
+  return values;
+}
+
+function cronMatches(schedule, date) {
+  const fields = schedule.trim().split(/\s+/);
+  if (fields.length !== 5) return false;
+  const [min, hour, day, month, weekday] = fields;
+  const fMin = parseField(min, 0, 59);
+  const fHour = parseField(hour, 0, 23);
+  const fDay = parseField(day, 1, 31);
+  const fMonth = parseField(month, 1, 12);
+  const fWd = parseField(weekday, 0, 7);
+  if (!fMin || !fHour || !fDay || !fMonth || !fWd) return false;
+  if (fWd.has(7)) fWd.add(0); // 7 也代表週日
+
+  if (!fMin.has(date.getMinutes())) return false;
+  if (!fHour.has(date.getHours())) return false;
+  if (!fMonth.has(date.getMonth() + 1)) return false;
+
+  // 標準 cron 規則：day 與 weekday 都有限制時，符合其一即可
+  const dayRestricted = day !== '*';
+  const wdRestricted = weekday !== '*';
+  const dayOk = fDay.has(date.getDate());
+  const wdOk = fWd.has(date.getDay());
+  if (dayRestricted && wdRestricted) return dayOk || wdOk;
+  if (dayRestricted) return dayOk;
+  if (wdRestricted) return wdOk;
+  return true;
+}
+
+function cronLog(message) {
+  const line = `[${new Date().toLocaleString('sv-SE')}] ${message}\n`;
+  try {
+    if (!fs.existsSync(LOG_DIR)) fs.mkdirSync(LOG_DIR, { recursive: true });
+    fs.appendFileSync(path.join(LOG_DIR, 'cron.log'), line);
+  } catch {}
+  console.log(line.trim());
+}
+
+function runJob(schedule, command) {
+  cronLog(`▶ 執行 [${schedule}] ${command}`);
+  exec(command, { windowsHide: true, maxBuffer: 10 * 1024 * 1024 }, (err, stdout, stderr) => {
+    const out = [stdout, stderr].filter(s => s && s.trim()).join('\n').trim();
+    if (err) cronLog(`✖ 失敗 [${command}]：${err.message}${out ? '\n' + out : ''}`);
+    else cronLog(`✔ 完成 [${command}]${out ? '\n' + out : ''}`);
+  });
+}
+
+// 取得目前啟用中的 cron 任務
+function activeJobs() {
+  return parseCrontab(readCrontabRaw())
+    .filter(e => e.type === 'cron' && !e.disabled)
+    .map(e => ({
+      schedule: MACRO_MAP[e.schedule] || e.schedule,
+      isReboot: e.schedule === '@reboot',
+      command: e.command,
+    }));
+}
+
+let lastMinuteKey = '';
+function schedulerTick() {
+  const now = new Date();
+  const key = `${now.getFullYear()}-${now.getMonth()}-${now.getDate()} ${now.getHours()}:${now.getMinutes()}`;
+  if (key === lastMinuteKey) return; // 同一分鐘不重複執行
+  lastMinuteKey = key;
+
+  for (const job of activeJobs()) {
+    if (job.isReboot) continue;
+    if (cronMatches(job.schedule, now)) runJob(job.schedule, job.command);
+  }
+}
+
+function startScheduler() {
+  // @reboot：伺服器啟動時執行一次
+  for (const job of activeJobs()) {
+    if (job.isReboot) runJob('@reboot', job.command);
+  }
+  lastMinuteKey = ''; // 啟動當下這一分鐘也要檢查
+  setInterval(schedulerTick, 5000);
+  schedulerTick();
+}
+
+// ── 工具 ─────────────────────────────────────────────────
+function readCrontabRaw() {
+  try {
+    return fs.readFileSync(CRONTAB_FILE, 'utf-8');
+  } catch {
+    return '';
+  }
+}
+
+function getCrontabLines(cb) {
+  cb(readCrontabRaw().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 {
+    fs.writeFileSync(CRONTAB_FILE, content);
+    res.json({ success: true });
+  } catch (e) {
+    console.error('[applyLines] error:', e.message);
+    res.status(500).json({ error: e.message });
+  }
+}
+
+// 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) => {
+  const raw = readCrontabRaw();
+  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', { windowsHide: true }, (err, stdout) => {
+    if (err) return res.json({ processes: [], error: err.message });
+    try {
+      // pm2 jlist 前面可能夾雜非 JSON 訊息，從第一個 [ 開始取
+      const jsonStart = stdout.indexOf('[');
+      const list = JSON.parse(jsonStart >= 0 ? stdout.slice(jsonStart) : '[]');
+      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:    [],
+      }));
+
+      const pids = new Set(processes.filter(p => p.pid).map(p => String(p.pid)));
+      if (pids.size === 0) return res.json({ processes });
+
+      // 用 netstat 取得所有 LISTENING port，再依 PID 對應
+      exec('netstat -ano', { windowsHide: true, maxBuffer: 10 * 1024 * 1024 }, (e2, netOut) => {
+        const portMap = {}; // pid → [port, ...]
+        (netOut || '').split('\n').forEach(line => {
+          // 格式: TCP  0.0.0.0:3789  0.0.0.0:0  LISTENING  12345
+          const m = line.trim().match(/^TCP\s+\S+:(\d+)\s+\S+\s+LISTENING\s+(\d+)/);
+          if (!m) return;
+          const port = m[1];
+          const pid = m[2];
+          if (pids.has(pid)) {
+            if (!portMap[pid]) portMap[pid] = [];
+            if (!portMap[pid].includes(port)) portMap[pid].push(port);
+          }
+        });
+
+        processes.forEach(p => {
+          if (portMap[String(p.pid)]) p.ports = portMap[String(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)}`, { windowsHide: true }, (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) => {
+  const script = `Get-CimInstance Win32_Process | Where-Object { $_.Name -match '^(node|bun)' } | ` +
+    `Select-Object ProcessId, CommandLine, ` +
+    `@{n='MemMB';e={[math]::Round($_.WorkingSetSize/1MB,1)}}, ` +
+    `@{n='Started';e={if ($_.CreationDate) {$_.CreationDate.ToString('MM/dd HH:mm')} else {'-'}}} | ` +
+    `ConvertTo-Json -Compress`;
+  execFile('powershell.exe', ['-NoProfile', '-Command', script], { windowsHide: true, maxBuffer: 10 * 1024 * 1024 }, (err, stdout) => {
+    if (err) return res.json({ processes: [], error: err.message });
+    let list = [];
+    try {
+      const parsed = JSON.parse(stdout.trim() || '[]');
+      list = Array.isArray(parsed) ? parsed : [parsed];
+    } catch {}
+    const processes = list.map(p => ({
+      pid: String(p.ProcessId),
+      cpu: '-',
+      mem: `${p.MemMB}MB`,
+      started: p.Started || '-',
+      time: '-',
+      cmd: p.CommandLine || '',
+    })).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 args = force ? `/F /T /PID ${parseInt(pid)}` : `/PID ${parseInt(pid)}`;
+  exec(`taskkill ${args}`, { windowsHide: true }, (err, stdout, stderr) => {
+    if (err) return res.status(500).json({ error: (stderr || stdout || err.message).trim() });
+    res.json({ success: true });
+  });
+});
+
+// ── GET /api/docker ──────────────────────────────────────
+app.get('/api/docker', (req, res) => {
+  const format = '{{json .}}';
+  exec(`docker ps -a --format ${JSON.stringify(format)}`, { windowsHide: true }, (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)}`, { windowsHide: true }, (err, stdout) => {
+    if (err) return res.status(500).json({ error: (stdout || '').trim() || err.message });
+    res.json({ success: true });
+  });
+});
+
+// ── Log API ───────────────────────────────────────────────
+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} ${req.originalUrl}` });
+});
+
+app.listen(PORT, () => {
+  console.log(`✅ Crontab UI (Windows) 已啟動：http://localhost:${PORT}`);
+  console.log(`   排程檔：${CRONTAB_FILE}`);
+  console.log(`   Log 目錄：${LOG_DIR}`);
+  startScheduler();
+});