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-rw-r--r--synapse/api/urls.py1
-rw-r--r--synapse/app/homeserver.py34
-rw-r--r--synapse/config/server.py48
3 files changed, 15 insertions, 68 deletions
diff --git a/synapse/api/urls.py b/synapse/api/urls.py
index f9f9467dc1..bd49fa6a5f 100644
--- a/synapse/api/urls.py
+++ b/synapse/api/urls.py
@@ -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"
diff --git a/synapse/app/homeserver.py b/synapse/app/homeserver.py
index efedcc8889..24d55b0494 100644
--- a/synapse/app/homeserver.py
+++ b/synapse/app/homeserver.py
@@ -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)
 
diff --git a/synapse/config/server.py b/synapse/config/server.py
index a0a00a9798..7bc9624546 100644
--- a/synapse/config/server.py
+++ b/synapse/config/server.py
@@ -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": {