perf: 性能与可靠性优化 - CommandQueue超时恢复/HTTP限制/日志轮转/调试日志清理/applyProperties修复

main.js

@@ -29,7 +29,14 @@ let isProcessingCommand = false;
  */
 function enqueueCommand(fn) {
     return new Promise((resolve) => {
-        commandQueue.push({ fn, resolve });
+        // 兜底超时保护：防止 fn 内部未调用 done() 导致队列永久停滞
+        const timeoutId = setTimeout(() => {
+            addLog("error", "[CommandQueue] 指令执行超时(60s)，强制释放队列");
+            isProcessingCommand = false;
+            resolve();
+            processNextCommand();
+        }, 60000);
+        commandQueue.push({ fn, resolve, timeoutId });
         processNextCommand();
     });
 }
@@ -40,15 +47,17 @@ function enqueueCommand(fn) {
 function processNextCommand() {
     if (isProcessingCommand || commandQueue.length === 0) return;
     isProcessingCommand = true;
-    const { fn, resolve } = commandQueue.shift();
+    const { fn, resolve, timeoutId } = commandQueue.shift();
     try {
         fn(() => {
+            clearTimeout(timeoutId);
             isProcessingCommand = false;
             resolve();
             processNextCommand();
         });
     } catch (e) {
         // 防止队列因未捕获异常永久阻塞
+        clearTimeout(timeoutId);
         addLog("error", `[CommandQueue] 指令执行异常: ${e.message}`);
         isProcessingCommand = false;
         resolve();
@@ -112,6 +121,19 @@ function getLogFilePath() {
                 fs.mkdirSync(settingsDir, { recursive: true });
             }
             _logFilePath = pathModule.join(settingsDir, "mcp-bridge.log");
+            // 日志轮转: 超过 2MB 时备份旧日志并创建新文件
+            try {
+                if (fs.existsSync(_logFilePath)) {
+                    const stats = fs.statSync(_logFilePath);
+                    if (stats.size > 2 * 1024 * 1024) {
+                        const backupPath = _logFilePath + ".old";
+                        if (fs.existsSync(backupPath)) fs.unlinkSync(backupPath);
+                        fs.renameSync(_logFilePath, backupPath);
+                    }
+                }
+            } catch (e) {
+                /* 轮转失败不影响主流程 */
+            }
             return _logFilePath;
         }
     } catch (e) {
@@ -832,11 +854,21 @@ module.exports = {
         res.setHeader("Content-Type", "application/json");
         res.setHeader("Access-Control-Allow-Origin", "*");
 
+        const MAX_BODY_SIZE = 5 * 1024 * 1024; // 5MB 请求体上限
         let body = "";
+        let aborted = false;
         req.on("data", (chunk) => {
             body += chunk;
+            if (body.length > MAX_BODY_SIZE) {
+                aborted = true;
+                addLog("error", `[HTTP] 请求体超过 ${MAX_BODY_SIZE} 字节上限，已拒绝`);
+                res.writeHead(413);
+                res.end(JSON.stringify({ error: "请求体过大" }));
+                req.destroy();
+            }
         });
         req.on("end", () => {
+            if (aborted) return;
             const url = req.url;
             if (url === "/list-tools") {
                 const tools = getToolsList();