mirror of
https://github.com/langgenius/dify.git
synced 2025-10-30 18:33:30 +00:00
86286e1ac8
Co-authored-by: chenhe <guchenhe@gmail.com> Co-authored-by: Pascal M <11357019+perzeuss@users.noreply.github.com>
48 lines
1.6 KiB
Python
48 lines
1.6 KiB
Python
from controllers.files import api
|
|
from flask import Response
|
|
from flask_restful import Resource, reqparse
|
|
from libs.exception import BaseHTTPException
|
|
from werkzeug.exceptions import NotFound, Forbidden
|
|
|
|
from core.tools.tool_file_manager import ToolFileManager
|
|
|
|
class ToolFilePreviewApi(Resource):
|
|
def get(self, file_id, extension):
|
|
file_id = str(file_id)
|
|
|
|
parser = reqparse.RequestParser()
|
|
|
|
parser.add_argument('timestamp', type=str, required=True, location='args')
|
|
parser.add_argument('nonce', type=str, required=True, location='args')
|
|
parser.add_argument('sign', type=str, required=True, location='args')
|
|
|
|
args = parser.parse_args()
|
|
|
|
if not ToolFileManager.verify_file(file_id=file_id,
|
|
timestamp=args['timestamp'],
|
|
nonce=args['nonce'],
|
|
sign=args['sign'],
|
|
):
|
|
raise Forbidden('Invalid request.')
|
|
|
|
try:
|
|
result = ToolFileManager.get_file_generator_by_message_file_id(
|
|
file_id,
|
|
)
|
|
|
|
if not result:
|
|
raise NotFound(f'file is not found')
|
|
|
|
generator, mimetype = result
|
|
except Exception:
|
|
raise UnsupportedFileTypeError()
|
|
|
|
return Response(generator, mimetype=mimetype)
|
|
|
|
api.add_resource(ToolFilePreviewApi, '/files/tools/<uuid:file_id>.<string:extension>')
|
|
|
|
class UnsupportedFileTypeError(BaseHTTPException):
|
|
error_code = 'unsupported_file_type'
|
|
description = "File type not allowed."
|
|
code = 415
|