From 4eaf3eb840b8cfa78d970216c74fc128495f08a5 Mon Sep 17 00:00:00 2001 From: Hugh Nimmo-Smith Date: Tue, 18 Oct 2022 16:52:25 +0100 Subject: Implementation of HTTP 307 response for MSC3886 POST endpoint (#14018) Co-authored-by: reivilibre Co-authored-by: Andrew Morgan --- synapse/rest/__init__.py | 2 + synapse/rest/client/rendezvous.py | 74 +++++++++++++++++++++++++ synapse/rest/client/versions.py | 3 + synapse/rest/key/v2/local_key_resource.py | 4 +- synapse/rest/synapse/client/new_user_consent.py | 3 +- synapse/rest/well_known.py | 3 +- 6 files changed, 85 insertions(+), 4 deletions(-) create mode 100644 synapse/rest/client/rendezvous.py (limited to 'synapse/rest') diff --git a/synapse/rest/__init__.py b/synapse/rest/__init__.py index 9a2ab99ede..28542cd774 100644 --- a/synapse/rest/__init__.py +++ b/synapse/rest/__init__.py @@ -44,6 +44,7 @@ from synapse.rest.client import ( receipts, register, relations, + rendezvous, report_event, room, room_batch, @@ -132,3 +133,4 @@ class ClientRestResource(JsonResource): # unstable mutual_rooms.register_servlets(hs, client_resource) login_token_request.register_servlets(hs, client_resource) + rendezvous.register_servlets(hs, client_resource) diff --git a/synapse/rest/client/rendezvous.py b/synapse/rest/client/rendezvous.py new file mode 100644 index 0000000000..89176b1ffa --- /dev/null +++ b/synapse/rest/client/rendezvous.py @@ -0,0 +1,74 @@ +# Copyright 2022 The Matrix.org Foundation C.I.C. +# +# 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 http.client import TEMPORARY_REDIRECT +from typing import TYPE_CHECKING, Optional + +from synapse.http.server import HttpServer, respond_with_redirect +from synapse.http.servlet import RestServlet +from synapse.http.site import SynapseRequest +from synapse.rest.client._base import client_patterns + +if TYPE_CHECKING: + from synapse.server import HomeServer + +logger = logging.getLogger(__name__) + + +class RendezvousServlet(RestServlet): + """ + This is a placeholder implementation of [MSC3886](https://github.com/matrix-org/matrix-spec-proposals/pull/3886) + simple client rendezvous capability that is used by the "Sign in with QR" functionality. + + This implementation only serves as a 307 redirect to a configured server rather than being a full implementation. + + A module that implements the full functionality is available at: https://pypi.org/project/matrix-http-rendezvous-synapse/. + + Request: + + POST /rendezvous HTTP/1.1 + Content-Type: ... + + ... + + Response: + + HTTP/1.1 307 + Location: + """ + + PATTERNS = client_patterns( + "/org.matrix.msc3886/rendezvous$", releases=[], v1=False, unstable=True + ) + + def __init__(self, hs: "HomeServer"): + super().__init__() + redirection_target: Optional[str] = hs.config.experimental.msc3886_endpoint + assert ( + redirection_target is not None + ), "Servlet is only registered if there is a redirection target" + self.endpoint = redirection_target.encode("utf-8") + + async def on_POST(self, request: SynapseRequest) -> None: + respond_with_redirect( + request, self.endpoint, statusCode=TEMPORARY_REDIRECT, cors=True + ) + + # PUT, GET and DELETE are not implemented as they should be fulfilled by the redirect target. + + +def register_servlets(hs: "HomeServer", http_server: HttpServer) -> None: + if hs.config.experimental.msc3886_endpoint is not None: + RendezvousServlet(hs).register(http_server) diff --git a/synapse/rest/client/versions.py b/synapse/rest/client/versions.py index 4b87ee978a..9b1b72c68a 100644 --- a/synapse/rest/client/versions.py +++ b/synapse/rest/client/versions.py @@ -116,6 +116,9 @@ class VersionsRestServlet(RestServlet): "org.matrix.msc3881": self.config.experimental.msc3881_enabled, # Adds support for filtering /messages by event relation. "org.matrix.msc3874": self.config.experimental.msc3874_enabled, + # Adds support for simple HTTP rendezvous as per MSC3886 + "org.matrix.msc3886": self.config.experimental.msc3886_endpoint + is not None, }, }, ) diff --git a/synapse/rest/key/v2/local_key_resource.py b/synapse/rest/key/v2/local_key_resource.py index 0c9f042c84..095993415c 100644 --- a/synapse/rest/key/v2/local_key_resource.py +++ b/synapse/rest/key/v2/local_key_resource.py @@ -20,9 +20,9 @@ from signedjson.sign import sign_json from unpaddedbase64 import encode_base64 from twisted.web.resource import Resource -from twisted.web.server import Request from synapse.http.server import respond_with_json_bytes +from synapse.http.site import SynapseRequest from synapse.types import JsonDict if TYPE_CHECKING: @@ -99,7 +99,7 @@ class LocalKey(Resource): json_object = sign_json(json_object, self.config.server.server_name, key) return json_object - def render_GET(self, request: Request) -> Optional[int]: + def render_GET(self, request: SynapseRequest) -> Optional[int]: time_now = self.clock.time_msec() # Update the expiry time if less than half the interval remains. if time_now + self.config.key.key_refresh_interval / 2 > self.valid_until_ts: diff --git a/synapse/rest/synapse/client/new_user_consent.py b/synapse/rest/synapse/client/new_user_consent.py index 1c1c7b3613..22784157e6 100644 --- a/synapse/rest/synapse/client/new_user_consent.py +++ b/synapse/rest/synapse/client/new_user_consent.py @@ -20,6 +20,7 @@ from synapse.api.errors import SynapseError from synapse.handlers.sso import get_username_mapping_session_cookie_from_request from synapse.http.server import DirectServeHtmlResource, respond_with_html from synapse.http.servlet import parse_string +from synapse.http.site import SynapseRequest from synapse.types import UserID from synapse.util.templates import build_jinja_env @@ -88,7 +89,7 @@ class NewUserConsentResource(DirectServeHtmlResource): html = template.render(template_params) respond_with_html(request, 200, html) - async def _async_render_POST(self, request: Request) -> None: + async def _async_render_POST(self, request: SynapseRequest) -> None: try: session_id = get_username_mapping_session_cookie_from_request(request) except SynapseError as e: diff --git a/synapse/rest/well_known.py b/synapse/rest/well_known.py index 6f7ac54c65..e2174fdfea 100644 --- a/synapse/rest/well_known.py +++ b/synapse/rest/well_known.py @@ -18,6 +18,7 @@ from twisted.web.resource import Resource from twisted.web.server import Request from synapse.http.server import set_cors_headers +from synapse.http.site import SynapseRequest from synapse.types import JsonDict from synapse.util import json_encoder from synapse.util.stringutils import parse_server_name @@ -63,7 +64,7 @@ class ClientWellKnownResource(Resource): Resource.__init__(self) self._well_known_builder = WellKnownBuilder(hs) - def render_GET(self, request: Request) -> bytes: + def render_GET(self, request: SynapseRequest) -> bytes: set_cors_headers(request) r = self._well_known_builder.get_well_known() if not r: -- cgit 1.4.1