refac: chat input file handling

backend/open_webui/apps/webui/models/files.py

@@ -73,6 +73,8 @@ class FileModelResponse(BaseModel):
     created_at: int  # timestamp in epoch
     updated_at: int  # timestamp in epoch
 
+    model_config = ConfigDict(extra="allow")
+
 
 class FileMetadataResponse(BaseModel):
     id: str

backend/open_webui/apps/webui/routers/files.py

@@ -38,7 +38,7 @@ router = APIRouter()
 ############################
 
 
-@router.post("/")
+@router.post("/", response_model=FileModelResponse)
 def upload_file(file: UploadFile = File(...), user=Depends(get_verified_user)):
     log.info(f"file.content_type: {file.content_type}")
     try:
@@ -73,6 +73,12 @@ def upload_file(file: UploadFile = File(...), user=Depends(get_verified_user)):
         except Exception as e:
             log.exception(e)
             log.error(f"Error processing file: {file_item.id}")
+            file_item = FileModelResponse(
+                **{
+                    **file_item.model_dump(),
+                    "error": e,
+                }
+            )
 
         if file_item:
             return file_item