feat(api): add generic file size limit parameter

- Introduced a new parameter for a generic file size limit across multiple API endpoints.
- Updated data structures and configurations to support the new `file_size_limit`.
- Changed `image_file_size_limit` field type from String to Integer for consistency.

api/controllers/console/explore/parameter.py

@@ -25,6 +25,7 @@ class AppParameterApi(InstalledAppResource):
         "image_file_size_limit": fields.Integer,
         "video_file_size_limit": fields.Integer,
         "audio_file_size_limit": fields.Integer,
+        "file_size_limit": fields.Integer,
     }
 
     parameters_fields = {
@@ -90,6 +91,7 @@ class AppParameterApi(InstalledAppResource):
                 "image_file_size_limit": dify_config.UPLOAD_IMAGE_FILE_SIZE_LIMIT,
                 "video_file_size_limit": dify_config.UPLOAD_VIDEO_FILE_SIZE_LIMIT,
                 "audio_file_size_limit": dify_config.UPLOAD_AUDIO_FILE_SIZE_LIMIT,
+                "file_size_limit": dify_config.UPLOAD_FILE_SIZE_LIMIT,
             },
         }
 

api/controllers/service_api/app/app.py

@@ -22,9 +22,10 @@ class AppParameterApi(Resource):
     }
 
     system_parameters_fields = {
-        "image_file_size_limit": fields.String,
+        "image_file_size_limit": fields.Integer,
         "video_file_size_limit": fields.Integer,
         "audio_file_size_limit": fields.Integer,
+        "file_size_limit": fields.Integer,
     }
 
     parameters_fields = {
@@ -89,6 +90,7 @@ class AppParameterApi(Resource):
                 "image_file_size_limit": dify_config.UPLOAD_IMAGE_FILE_SIZE_LIMIT,
                 "video_file_size_limit": dify_config.UPLOAD_VIDEO_FILE_SIZE_LIMIT,
                 "audio_file_size_limit": dify_config.UPLOAD_AUDIO_FILE_SIZE_LIMIT,
+                "file_size_limit": dify_config.UPLOAD_FILE_SIZE_LIMIT,
             },
         }
 

api/controllers/web/app.py

@@ -25,6 +25,7 @@ class AppParameterApi(WebApiResource):
         "image_file_size_limit": fields.Integer,
         "video_file_size_limit": fields.Integer,
         "audio_file_size_limit": fields.Integer,
+        "file_size_limit": fields.Integer,
     }
 
     parameters_fields = {
@@ -88,6 +89,7 @@ class AppParameterApi(WebApiResource):
                 "image_file_size_limit": dify_config.UPLOAD_IMAGE_FILE_SIZE_LIMIT,
                 "video_file_size_limit": dify_config.UPLOAD_VIDEO_FILE_SIZE_LIMIT,
                 "audio_file_size_limit": dify_config.UPLOAD_AUDIO_FILE_SIZE_LIMIT,
+                "file_size_limit": dify_config.UPLOAD_FILE_SIZE_LIMIT,
             },
         }