19.6.1

ts/proxies/http-proxy/function-cache.ts

@@ -30,6 +30,9 @@ export class FunctionCache {
   // Logger
   private logger: ILogger;
   
+  // Cleanup interval timer
+  private cleanupInterval: NodeJS.Timeout | null = null;
+  
   /**
    * Creates a new function cache
    * 
@@ -48,7 +51,12 @@ export class FunctionCache {
     this.defaultTtl = options.defaultTtl || 5000; // 5 seconds default
     
     // Start the cache cleanup timer
-    setInterval(() => this.cleanupCache(), 30000); // Cleanup every 30 seconds
+    this.cleanupInterval = setInterval(() => this.cleanupCache(), 30000); // Cleanup every 30 seconds
+    
+    // Make sure the interval doesn't keep the process alive
+    if (this.cleanupInterval.unref) {
+      this.cleanupInterval.unref();
+    }
   }
   
   /**
@@ -256,4 +264,16 @@ export class FunctionCache {
     this.portCache.clear();
     this.logger.info('Function cache cleared');
   }
+  
+  /**
+   * Destroy the cache and cleanup resources
+   */
+  public destroy(): void {
+    if (this.cleanupInterval) {
+      clearInterval(this.cleanupInterval);
+      this.cleanupInterval = null;
+    }
+    this.clearCache();
+    this.logger.debug('Function cache destroyed');
+  }
 }

ts/proxies/http-proxy/http-proxy.ts

@@ -464,6 +464,11 @@ export class HttpProxy implements IMetricsTracker {
     // Stop WebSocket handler
     this.webSocketHandler.shutdown();
     
+    // Destroy request handler (cleans up intervals and caches)
+    if (this.requestHandler && typeof this.requestHandler.destroy === 'function') {
+      this.requestHandler.destroy();
+    }
+    
     // Close all tracked sockets
     const socketCleanupPromises = this.socketMap.getArray().map(socket => 
       cleanupSocket(socket, 'http-proxy-stop', { immediate: true })

ts/proxies/http-proxy/request-handler.ts

@@ -42,6 +42,9 @@ export class RequestHandler {
 
   // Security manager for IP filtering, rate limiting, etc.
   public securityManager: SecurityManager;
+  
+  // Rate limit cleanup interval
+  private rateLimitCleanupInterval: NodeJS.Timeout | null = null;
 
   constructor(
     private options: IHttpProxyOptions,
@@ -54,9 +57,14 @@ export class RequestHandler {
     this.securityManager = new SecurityManager(this.logger);
 
     // Schedule rate limit cleanup every minute
-    setInterval(() => {
+    this.rateLimitCleanupInterval = setInterval(() => {
       this.securityManager.cleanupExpiredRateLimits();
     }, 60000);
+    
+    // Make sure the interval doesn't keep the process alive
+    if (this.rateLimitCleanupInterval.unref) {
+      this.rateLimitCleanupInterval.unref();
+    }
   }
 
   /**
@@ -741,4 +749,27 @@ export class RequestHandler {
     stream.end('Not Found: No route configuration for this request');
     if (this.metricsTracker) this.metricsTracker.incrementFailedRequests();
   }
+  
+  /**
+   * Cleanup resources and stop intervals
+   */
+  public destroy(): void {
+    if (this.rateLimitCleanupInterval) {
+      clearInterval(this.rateLimitCleanupInterval);
+      this.rateLimitCleanupInterval = null;
+    }
+    
+    // Close all HTTP/2 sessions
+    for (const [key, session] of this.h2Sessions) {
+      session.close();
+    }
+    this.h2Sessions.clear();
+    
+    // Clear function cache if it has a destroy method
+    if (this.functionCache && typeof this.functionCache.destroy === 'function') {
+      this.functionCache.destroy();
+    }
+    
+    this.logger.debug('RequestHandler destroyed');
+  }
 }

ts/proxies/smart-proxy/metrics-collector.ts

@@ -10,6 +10,7 @@ export class MetricsCollector implements IProxyStatsExtended {
   // RPS tracking (the only state we need to maintain)
   private requestTimestamps: number[] = [];
   private readonly RPS_WINDOW_SIZE = 60000; // 1 minute window
+  private readonly MAX_TIMESTAMPS = 5000; // Maximum timestamps to keep
   
   // Optional caching for performance
   private cachedMetrics: {
@@ -148,11 +149,14 @@ export class MetricsCollector implements IProxyStatsExtended {
    * Record a new request for RPS tracking
    */
   public recordRequest(): void {
-    this.requestTimestamps.push(Date.now());
+    const now = Date.now();
+    this.requestTimestamps.push(now);
     
-    // Prevent unbounded growth
-    if (this.requestTimestamps.length > 10000) {
-      this.cleanupOldRequests();
+    // Prevent unbounded growth - clean up more aggressively
+    if (this.requestTimestamps.length > this.MAX_TIMESTAMPS) {
+      // Keep only timestamps within the window
+      const cutoff = now - this.RPS_WINDOW_SIZE;
+      this.requestTimestamps = this.requestTimestamps.filter(ts => ts > cutoff);
     }
   }
   

ts/proxies/smart-proxy/route-connection-handler.ts

@@ -10,7 +10,7 @@ import { TlsManager } from './tls-manager.js';
 import { HttpProxyBridge } from './http-proxy-bridge.js';
 import { TimeoutManager } from './timeout-manager.js';
 import { SharedRouteManager as RouteManager } from '../../core/routing/route-manager.js';
-import { cleanupSocket, createIndependentSocketHandlers, setupSocketHandlers, createSocketWithErrorHandler, setupBidirectionalForwarding } from '../../core/utils/socket-utils.js';
+import { cleanupSocket, setupSocketHandlers, createSocketWithErrorHandler, setupBidirectionalForwarding } from '../../core/utils/socket-utils.js';
 import { WrappedSocket } from '../../core/models/wrapped-socket.js';
 import { getUnderlyingSocket } from '../../core/models/socket-types.js';
 import { ProxyProtocolParser } from '../../core/utils/proxy-protocol.js';
@@ -21,8 +21,9 @@ import { ProxyProtocolParser } from '../../core/utils/proxy-protocol.js';
 export class RouteConnectionHandler {
   private settings: ISmartProxyOptions;
 
-  // Cache for route contexts to avoid recreation
-  private routeContextCache: Map<string, IRouteContext> = new Map();
+  // Note: Route context caching was considered but not implemented
+  // as route contexts are lightweight and should be created fresh
+  // for each connection to ensure accurate context data
   
   // RxJS Subject for new connections
   public newConnectionSubject = new plugins.smartrx.rxjs.Subject<IConnectionRecord>();
@@ -730,8 +731,7 @@ export class RouteConnectionHandler {
       routeId: route.id,
     });
 
-    // Cache the context for potential reuse
-    this.routeContextCache.set(connectionId, routeContext);
+    // Note: Route contexts are not cached to ensure fresh data for each connection
 
     // Determine host using function or static value
     let targetHost: string | string[];