synapse-old/synapse/rest/well_known.py

70 lines
2.2 KiB
Python

# Copyright 2018 New Vector Ltd
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import logging
from typing import TYPE_CHECKING, Optional
from twisted.web.resource import Resource
from twisted.web.server import Request
from synapse.http.server import set_cors_headers
from synapse.types import JsonDict
from synapse.util import json_encoder
if TYPE_CHECKING:
from synapse.server import HomeServer
logger = logging.getLogger(__name__)
class WellKnownBuilder:
def __init__(self, hs: "HomeServer"):
self._config = hs.config
def get_well_known(self) -> Optional[JsonDict]:
# if we don't have a public_baseurl, we can't help much here.
if self._config.server.public_baseurl is None:
return None
result = {"m.homeserver": {"base_url": self._config.server.public_baseurl}}
if self._config.registration.default_identity_server:
result["m.identity_server"] = {
"base_url": self._config.registration.default_identity_server
}
return result
class WellKnownResource(Resource):
"""A Twisted web resource which renders the .well-known file"""
isLeaf = 1
def __init__(self, hs: "HomeServer"):
Resource.__init__(self)
self._well_known_builder = WellKnownBuilder(hs)
def render_GET(self, request: Request) -> bytes:
set_cors_headers(request)
r = self._well_known_builder.get_well_known()
if not r:
request.setResponseCode(404)
request.setHeader(b"Content-Type", b"text/plain")
return b".well-known not available"
logger.debug("returning: %s", r)
request.setHeader(b"Content-Type", b"application/json")
return json_encoder.encode(r).encode("utf-8")