maubot/maubot/management/api/middleware.py
2018-12-08 14:12:33 +02:00

65 lines
2.0 KiB
Python

# maubot - A plugin-based Matrix bot system.
# Copyright (C) 2018 Tulir Asokan
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program. If not, see <https://www.gnu.org/licenses/>.
from typing import Callable, Awaitable
import logging
from aiohttp import web
from .responses import resp
from .auth import check_token
from .base import get_config
Handler = Callable[[web.Request], Awaitable[web.Response]]
log = logging.getLogger("maubot.server")
@web.middleware
async def auth(request: web.Request, handler: Handler) -> web.Response:
subpath = request.path[len(get_config()["server.base_path"]):]
if subpath.startswith("/auth/") or subpath == "/logs":
return await handler(request)
err = check_token(request)
if err is not None:
return err
return await handler(request)
@web.middleware
async def error(request: web.Request, handler: Handler) -> web.Response:
try:
return await handler(request)
except web.HTTPException as ex:
if ex.status_code == 404:
return resp.path_not_found
elif ex.status_code == 405:
return resp.method_not_allowed
return web.json_response({
"error": f"Unhandled HTTP {ex.status}",
"errcode": f"unhandled_http_{ex.status}",
}, status=ex.status)
except Exception:
log.exception("Error in handler")
return resp.internal_server_error
req_no = 0
def get_req_no():
global req_no
req_no += 1
return req_no