big b oys

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)}"