big b oys

backend/config.py

@@ -16,7 +16,7 @@ class Config:
 
     # File upload configuration
     UPLOAD_FOLDER = BASE_DIR / "backend" / "static" / "images"
-    MAX_CONTENT_LENGTH = 5 * 1024 * 1024  # 5MB max file size
+    MAX_CONTENT_LENGTH = 500 * 1024 * 1024  # 500MB max file size (increased for bulk import/export)
     ALLOWED_EXTENSIONS = {'png', 'jpg', 'jpeg', 'gif'}
 
     # Audio upload configuration

backend/routes/export_import.py

@@ -74,8 +74,14 @@ def import_data():
         # Save uploaded file to temporary location
         temp_dir = tempfile.mkdtemp()
         temp_path = os.path.join(temp_dir, secure_filename(file.filename))
+
+        print(f"Saving uploaded file to: {temp_path}")
         file.save(temp_path)
 
+        # Verify file was saved
+        file_size = os.path.getsize(temp_path)
+        print(f"Saved file size: {file_size} bytes")
+
         # Import from ZIP
         result = import_questions_from_zip(temp_path)
 

backend/services/export_import_service.py

@@ -169,6 +169,13 @@ def validate_import_zip(zip_path: str) -> Tuple[bool, Optional[str]]:
         if not os.path.exists(zip_path):
             return False, "ZIP file not found"
 
+        # Check file size
+        file_size = os.path.getsize(zip_path)
+        print(f"Validating ZIP file: {zip_path}, size: {file_size} bytes")
+
+        if file_size == 0:
+            return False, "ZIP file is empty"
+
         # Try to open as ZIP
         try:
             with zipfile.ZipFile(zip_path, 'r') as zipf:
@@ -214,12 +221,17 @@ def validate_import_zip(zip_path: str) -> Tuple[bool, Optional[str]]:
 
                 return True, None
 
-        except zipfile.BadZipFile:
-            return False, "Invalid ZIP file format"
-        except json.JSONDecodeError:
-            return False, "Invalid JSON in manifest.json"
+        except zipfile.BadZipFile as e:
+            print(f"BadZipFile error: {e}")
+            return False, f"Invalid ZIP file format: {str(e)}"
+        except json.JSONDecodeError as e:
+            print(f"JSON decode error: {e}")
+            return False, f"Invalid JSON in manifest.json: {str(e)}"
 
     except Exception as e:
+        print(f"Unexpected validation error: {e}")
+        import traceback
+        traceback.print_exc()
         return False, f"Validation error: {str(e)}"