DHT Nill pointer fix

internal/api/handlers.go

@@ -1118,10 +1118,14 @@ func (g *Gateway) handleTorrentUpload(w http.ResponseWriter, r *http.Request, fi
 	}
 
 	// Queue video for transcoding if applicable
+	log.Printf("DEBUG: Transcoding check for %s - transcodingManager: %t, streamingInfo: %t, autoTranscode: %t", 
+		fileName, g.transcodingManager != nil, streamingInfo != nil, g.config.Transcoding.AutoTranscode)
+	
 	if g.transcodingManager != nil && streamingInfo != nil && g.config.Transcoding.AutoTranscode {
 		// For torrent files, we need to reconstruct the original file for transcoding
 		go func() {
 			// Run in background to not block upload response
+			log.Printf("DEBUG: Starting transcoding reconstruction for %s", fileName)
 			originalPath, err := g.ReconstructTorrentFile(metadata.Hash, fileName)
 			if err != nil {
 				log.Printf("Warning: Failed to reconstruct file %s for transcoding: %v", fileName, err)
@@ -1131,6 +1135,8 @@ func (g *Gateway) handleTorrentUpload(w http.ResponseWriter, r *http.Request, fi
 			log.Printf("Queueing large video file %s for transcoding", fileName)
 			g.transcodingManager.QueueVideoForTranscoding(metadata.Hash, fileName, originalPath, metadata.Size)
 		}()
+	} else {
+		log.Printf("DEBUG: Transcoding skipped for %s - missing conditions", fileName)
 	}
 
 	// Send success response for torrent

internal/dht/node.go

@@ -2233,6 +2233,12 @@ func (d *DHT) queryNodesParallel(candidates []*Node, targetID NodeID, queryType
 				wg.Done()
 			}()
 			
+			// Validate node before proceeding
+			if node == nil || node.Addr == nil {
+				log.Printf("DHT query: skipping nil node or address")
+				return
+			}
+			
 			key := fmt.Sprintf("%s:%d", node.Addr.IP, node.Addr.Port)
 			queriedMutex.Lock()
 			queried[key] = true