dify/api/controllers/files/image_preview.py

53 lines
1.7 KiB
Python

from flask import Response, request
from flask_restful import Resource
from werkzeug.exceptions import NotFound
import services
from controllers.files import api
from controllers.files.error import UnsupportedFileTypeError
from services.account_service import TenantService
from services.file_service import FileService
class ImagePreviewApi(Resource):
def get(self, file_id):
file_id = str(file_id)
timestamp = request.args.get("timestamp")
nonce = request.args.get("nonce")
sign = request.args.get("sign")
if not timestamp or not nonce or not sign:
return {"content": "Invalid request."}, 400
try:
generator, mimetype = FileService.get_image_preview(file_id, timestamp, nonce, sign)
except services.errors.file.UnsupportedFileTypeError:
raise UnsupportedFileTypeError()
return Response(generator, mimetype=mimetype)
class WorkspaceWebappLogoApi(Resource):
def get(self, workspace_id):
workspace_id = str(workspace_id)
custom_config = TenantService.get_custom_config(workspace_id)
webapp_logo_file_id = custom_config.get("replace_webapp_logo") if custom_config is not None else None
if not webapp_logo_file_id:
raise NotFound("webapp logo is not found")
try:
generator, mimetype = FileService.get_public_image_preview(
webapp_logo_file_id,
)
except services.errors.file.UnsupportedFileTypeError:
raise UnsupportedFileTypeError()
return Response(generator, mimetype=mimetype)
api.add_resource(ImagePreviewApi, "/files/<uuid:file_id>/image-preview")
api.add_resource(WorkspaceWebappLogoApi, "/files/workspaces/<uuid:workspace_id>/webapp-logo")