fix(detection): fix SNI detection in TLS detector

ts/detection/utils/fragment-manager.ts

@@ -0,0 +1,64 @@
+/**
+ * Fragment Manager for Detection Module
+ * 
+ * Manages fragmented protocol data using the shared fragment handler
+ */
+
+import { FragmentHandler, type IFragmentOptions } from '../../protocols/common/fragment-handler.js';
+import type { IConnectionContext } from '../../protocols/common/types.js';
+
+/**
+ * Detection-specific fragment manager
+ */
+export class DetectionFragmentManager {
+  private tlsFragments: FragmentHandler;
+  private httpFragments: FragmentHandler;
+  
+  constructor() {
+    // Configure fragment handlers with appropriate limits
+    const tlsOptions: IFragmentOptions = {
+      maxBufferSize: 16384,  // TLS record max size
+      timeout: 5000,
+      cleanupInterval: 30000
+    };
+    
+    const httpOptions: IFragmentOptions = {
+      maxBufferSize: 8192,   // HTTP header reasonable limit
+      timeout: 5000,
+      cleanupInterval: 30000
+    };
+    
+    this.tlsFragments = new FragmentHandler(tlsOptions);
+    this.httpFragments = new FragmentHandler(httpOptions);
+  }
+  
+  /**
+   * Get fragment handler for protocol type
+   */
+  getHandler(protocol: 'tls' | 'http'): FragmentHandler {
+    return protocol === 'tls' ? this.tlsFragments : this.httpFragments;
+  }
+  
+  /**
+   * Create connection ID from context
+   */
+  static createConnectionId(context: IConnectionContext): string {
+    return context.id || `${context.sourceIp}:${context.sourcePort}-${context.destIp}:${context.destPort}`;
+  }
+  
+  /**
+   * Clean up all handlers
+   */
+  cleanup(): void {
+    this.tlsFragments.cleanup();
+    this.httpFragments.cleanup();
+  }
+  
+  /**
+   * Destroy all handlers
+   */
+  destroy(): void {
+    this.tlsFragments.destroy();
+    this.httpFragments.destroy();
+  }
+}