dify/api/controllers/files/tool_files.py
Yeuoly 86286e1ac8
Feat/assistant app (#2086)
Co-authored-by: chenhe <guchenhe@gmail.com>
Co-authored-by: Pascal M <11357019+perzeuss@users.noreply.github.com>
2024-01-23 19:58:23 +08:00

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