r0.6.1 support: /rooms/:roomId/aliases endpoint (#9224)

[MSC2432](https://github.com/matrix-org/matrix-doc/pull/2432) added this endpoint originally but it has since been included in the spec for nearly a year. 

This is progress towards https://github.com/matrix-org/synapse/issues/8334

3 files changed, 3 insertions, 3 deletions

diff --git a/changelog.d/9224.feature b/changelog.d/9224.feature
new file mode 100644

index 0000000000..76519c23e2
--- /dev/null
+++ b/changelog.d/9224.feature
@@ -0,0 +1 @@
+Add new endpoint `/_matrix/client/r0/rooms/{roomId}/aliases` from Client-Server API r0.6.1 (previously [MSC2432](https://github.com/matrix-org/matrix-doc/pull/2432)).
diff --git a/synapse/rest/client/v1/room.py b/synapse/rest/client/v1/room.py

index 70286b0ff7..5a9c27f75f 100644
--- a/synapse/rest/client/v1/room.py
+++ b/synapse/rest/client/v1/room.py
@@ -910,7 +910,7 @@ class RoomAliasListServlet(RestServlet):
             r"^/_matrix/client/unstable/org\.matrix\.msc2432"
             r"/rooms/(?P<room_id>[^/]*)/aliases"
         ),
-    ]
+    ] + list(client_patterns("/rooms/(?P<room_id>[^/]*)/aliases$", unstable=False))
 
     def __init__(self, hs: "HomeServer"):
         super().__init__()
diff --git a/tests/rest/client/v1/test_rooms.py b/tests/rest/client/v1/test_rooms.py

index 7c4bdcdfdd..5b1096d091 100644
--- a/tests/rest/client/v1/test_rooms.py
+++ b/tests/rest/client/v1/test_rooms.py
@@ -1880,8 +1880,7 @@ class RoomAliasListTestCase(unittest.HomeserverTestCase):
         """Calls the endpoint under test. returns the json response object."""
         channel = self.make_request(
             "GET",
-            "/_matrix/client/unstable/org.matrix.msc2432/rooms/%s/aliases"
-            % (self.room_id,),
+            "/_matrix/client/r0/rooms/%s/aliases" % (self.room_id,),
             access_token=access_token,
         )
         self.assertEqual(channel.code, expected_code, channel.result)