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Remove support for the webclient listener. (#11895)

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Also remove support for non-HTTP(S) web_client_location.
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Patrick Cloke 2022-02-03 13:36:49 -05:00 committed by GitHub
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commit 119edf51eb
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6 changed files with 29 additions and 176 deletions
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1
changelog.d/11895.removal Normal file
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@ -0,0 +1 @@
Drop support for `webclient` listeners and configuring `web_client_location` to a non-HTTP(S) URL. Deprecated configurations are a configuration error.

13
docs/upgrade.md
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@ -85,6 +85,19 @@ process, for example:
dpkg -i matrix-synapse-py3_1.3.0+stretch1_amd64.deb
```
# Upgrading to v1.53.0
## Dropping support for `webclient` listeners and non-HTTP(S) `web_client_location`
Per the deprecation notice in Synapse v1.51.0, listeners of type `webclient`
are no longer supported and configuring them is a now a configuration error.
Configuring a non-HTTP(S) `web_client_location` configuration is is now a
configuration error. Since the `webclient` listener is no longer supported, this
setting only applies to the root path `/` of Synapse's web server and no longer
the `/_matrix/client/` path.
# Upgrading to v1.51.0
## Deprecation of `webclient` listeners and non-HTTP(S) `web_client_location`

1
synapse/api/urls.py
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@ -28,7 +28,6 @@ FEDERATION_V1_PREFIX = FEDERATION_PREFIX + "/v1"
FEDERATION_V2_PREFIX = FEDERATION_PREFIX + "/v2"
FEDERATION_UNSTABLE_PREFIX = FEDERATION_PREFIX + "/unstable"
STATIC_PREFIX = "/_matrix/static"
WEB_CLIENT_PREFIX = "/_matrix/client"
SERVER_KEY_V2_PREFIX = "/_matrix/key/v2"
MEDIA_R0_PREFIX = "/_matrix/media/r0"
MEDIA_V3_PREFIX = "/_matrix/media/v3"

34
synapse/app/homeserver.py
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@ -21,7 +21,6 @@ from typing import Dict, Iterable, Iterator, List
from twisted.internet.tcp import Port
from twisted.web.resource import EncodingResourceWrapper, Resource
from twisted.web.server import GzipEncoderFactory
from twisted.web.static import File
import synapse
import synapse.config.logger
@ -33,7 +32,6 @@ from synapse.api.urls import (
MEDIA_V3_PREFIX,
SERVER_KEY_V2_PREFIX,
STATIC_PREFIX,
WEB_CLIENT_PREFIX,
)
from synapse.app import _base
from synapse.app._base import (
@ -53,7 +51,6 @@ from synapse.http.additional_resource import AdditionalResource
from synapse.http.server import (
OptionsResource,
RootOptionsRedirectResource,
RootRedirect,
StaticResource,
)
from synapse.http.site import SynapseSite
@ -134,15 +131,12 @@ class SynapseHomeServer(HomeServer):
# Try to find something useful to serve at '/':
#
# 1. Redirect to the web client if it is an HTTP(S) URL.
# 2. Redirect to the web client served via Synapse.
# 3. Redirect to the static "Synapse is running" page.
# 4. Do not redirect and use a blank resource.
if self.config.server.web_client_location_is_redirect:
# 2. Redirect to the static "Synapse is running" page.
# 3. Do not redirect and use a blank resource.
if self.config.server.web_client_location:
root_resource: Resource = RootOptionsRedirectResource(
self.config.server.web_client_location
)
elif WEB_CLIENT_PREFIX in resources:
root_resource = RootOptionsRedirectResource(WEB_CLIENT_PREFIX)
elif STATIC_PREFIX in resources:
root_resource = RootOptionsRedirectResource(STATIC_PREFIX)
else:
@ -270,28 +264,6 @@ class SynapseHomeServer(HomeServer):
if name in ["keys", "federation"]:
resources[SERVER_KEY_V2_PREFIX] = KeyApiV2Resource(self)
if name == "webclient":
# webclient listeners are deprecated as of Synapse v1.51.0, remove it
# in > v1.53.0.
webclient_loc = self.config.server.web_client_location
if webclient_loc is None:
logger.warning(
"Not enabling webclient resource, as web_client_location is unset."
)
elif self.config.server.web_client_location_is_redirect:
resources[WEB_CLIENT_PREFIX] = RootRedirect(webclient_loc)
else:
logger.warning(
"Running webclient on the same domain is not recommended: "
"https://github.com/matrix-org/synapse#security-note - "
"after you move webclient to different host you can set "
"web_client_location to its full URL to enable redirection."
)
# GZip is disabled here due to
# https://twistedmatrix.com/trac/ticket/7678
resources[WEB_CLIENT_PREFIX] = File(webclient_loc)
if name == "metrics" and self.config.metrics.enable_metrics:
resources[METRICS_PREFIX] = MetricsResource(RegistryProxy)

48
synapse/config/server.py
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@ -179,7 +179,6 @@ KNOWN_RESOURCES = {
"openid",
"replication",
"static",
"webclient",
}
@ -519,16 +518,12 @@ class ServerConfig(Config):
self.listeners = l2
self.web_client_location = config.get("web_client_location", None)
self.web_client_location_is_redirect = self.web_client_location and (
# Non-HTTP(S) web client location is not supported.
if self.web_client_location and not (
self.web_client_location.startswith("http://")
or self.web_client_location.startswith("https://")
)
# A non-HTTP(S) web client location is deprecated.
if self.web_client_location and not self.web_client_location_is_redirect:
logger.warning(NO_MORE_NONE_HTTP_WEB_CLIENT_LOCATION_WARNING)
# Warn if webclient is configured for a worker.
_warn_if_webclient_configured(self.listeners)
):
raise ConfigError("web_client_location must point to a HTTP(S) URL.")
self.gc_thresholds = read_gc_thresholds(config.get("gc_thresholds", None))
self.gc_seconds = self.read_gc_intervals(config.get("gc_min_interval", None))
@ -1351,11 +1346,16 @@ def parse_listener_def(listener: Any) -> ListenerConfig:
http_config = None
if listener_type == "http":
try:
resources = [
HttpResourceConfig(**res) for res in listener.get("resources", [])
]
except ValueError as e:
raise ConfigError("Unknown listener resource") from e
http_config = HttpListenerConfig(
x_forwarded=listener.get("x_forwarded", False),
resources=[
HttpResourceConfig(**res) for res in listener.get("resources", [])
],
resources=resources,
additional_resources=listener.get("additional_resources", {}),
tag=listener.get("tag"),
)
@ -1363,30 +1363,6 @@ def parse_listener_def(listener: Any) -> ListenerConfig:
return ListenerConfig(port, bind_addresses, listener_type, tls, http_config)
NO_MORE_NONE_HTTP_WEB_CLIENT_LOCATION_WARNING = """
Synapse no longer supports serving a web client. To remove this warning,
configure 'web_client_location' with an HTTP(S) URL.
"""
NO_MORE_WEB_CLIENT_WARNING = """
Synapse no longer includes a web client. To redirect the root resource to a web client, configure
'web_client_location'. To remove this warning, remove 'webclient' from the 'listeners'
configuration.
"""
def _warn_if_webclient_configured(listeners: Iterable[ListenerConfig]) -> None:
for listener in listeners:
if not listener.http_options:
continue
for res in listener.http_options.resources:
for name in res.names:
if name == "webclient":
logger.warning(NO_MORE_WEB_CLIENT_WARNING)
return
_MANHOLE_SETTINGS_SCHEMA = {
"type": "object",
"properties": {

108
tests/http/test_webclient.py
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@ -1,108 +0,0 @@
# 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.
from http import HTTPStatus
from typing import Dict
from twisted.web.resource import Resource
from synapse.app.homeserver import SynapseHomeServer
from synapse.config.server import HttpListenerConfig, HttpResourceConfig, ListenerConfig
from synapse.http.site import SynapseSite
from tests.server import make_request
from tests.unittest import HomeserverTestCase, create_resource_tree, override_config
class WebClientTests(HomeserverTestCase):
@override_config(
{
"web_client_location": "https://example.org",
}
)
def test_webclient_resolves_with_client_resource(self):
"""
Tests that both client and webclient resources can be accessed simultaneously.
This is a regression test created in response to https://github.com/matrix-org/synapse/issues/11763.
"""
for resource_name_order_list in [
["webclient", "client"],
["client", "webclient"],
]:
# Create a dictionary from path regex -> resource
resource_dict: Dict[str, Resource] = {}
for resource_name in resource_name_order_list:
resource_dict.update(
SynapseHomeServer._configure_named_resource(self.hs, resource_name)
)
# Create a root resource which ties the above resources together into one
root_resource = Resource()
create_resource_tree(resource_dict, root_resource)
# Create a site configured with this resource to make HTTP requests against
listener_config = ListenerConfig(
port=8008,
bind_addresses=["127.0.0.1"],
type="http",
http_options=HttpListenerConfig(
resources=[HttpResourceConfig(names=resource_name_order_list)]
),
)
test_site = SynapseSite(
logger_name="synapse.access.http.fake",
site_tag=self.hs.config.server.server_name,
config=listener_config,
resource=root_resource,
server_version_string="1",
max_request_body_size=1234,
reactor=self.reactor,
)
# Attempt to make requests to endpoints on both the webclient and client resources
# on test_site.
self._request_client_and_webclient_resources(test_site)
def _request_client_and_webclient_resources(self, test_site: SynapseSite) -> None:
"""Make a request to an endpoint on both the webclient and client-server resources
of the given SynapseSite.
Args:
test_site: The SynapseSite object to make requests against.
"""
# Ensure that the *webclient* resource is behaving as expected (we get redirected to
# the configured web_client_location)
channel = make_request(
self.reactor,
site=test_site,
method="GET",
path="/_matrix/client",
)
# Check that we are being redirected to the webclient location URI.
self.assertEqual(channel.code, HTTPStatus.FOUND)
self.assertEqual(
channel.headers.getRawHeaders("Location"), ["https://example.org"]
)
# Ensure that a request to the *client* resource works.
channel = make_request(
self.reactor,
site=test_site,
method="GET",
path="/_matrix/client/v3/login",
)
self.assertEqual(channel.code, HTTPStatus.OK)
self.assertIn("flows", channel.json_body)