Update flare-ui/src/app/services/conversation-manager.service.ts

flare-ui/src/app/services/conversation-manager.service.ts

@@ -464,6 +464,11 @@ export class ConversationManagerService implements OnDestroy {
             preview: combinedBase64.substring(0, 100)
           });
           
+          // Validate base64
+          if (!this.isValidBase64(combinedBase64)) {
+            throw new Error('Invalid base64 data received');
+          }
+          
           const audioBlob = this.base64ToBlob(combinedBase64, message['mime_type'] || 'audio/mpeg');
           const audioUrl = URL.createObjectURL(audioBlob);
           
@@ -489,10 +494,28 @@ export class ConversationManagerService implements OnDestroy {
     }
   }
   
+  private isValidBase64(str: string): boolean {
+    try {
+      // Check if string contains only valid base64 characters
+      const base64Regex = /^[A-Za-z0-9+/]*={0,2}$/;
+      if (!base64Regex.test(str)) {
+        return false;
+      }
+      
+      // Try to decode to verify
+      atob(str);
+      return true;
+    } catch (e) {
+      return false;
+    }
+  }
+  
   private base64ToBlob(base64: string, mimeType: string): Blob {
     try {
-      console.log('Base64 length:', base64.length);
-      console.log('Base64 preview:', base64.substring(0, 100));
+      console.log('Converting base64 to blob:', {
+        length: base64.length,
+        mimeType: mimeType
+      });
       
       const byteCharacters = atob(base64);
       const byteNumbers = new Array(byteCharacters.length);