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authorPatrick Cloke <clokep@users.noreply.github.com>2021-07-28 07:03:01 -0400
committerGitHub <noreply@github.com>2021-07-28 07:03:01 -0400
commit752fe0cd9869d25bb3e02a539aba67e98afea514 (patch)
treee55c176c7f2e89d0233760acfab9b5eae1631803
parentSupport for MSC2285 (hidden read receipts) (#10413) (diff)
downloadsynapse-752fe0cd9869d25bb3e02a539aba67e98afea514.tar.xz
Restricted rooms (MSC3083) should not have their allow key redacted. (#10489)
-rw-r--r--changelog.d/10489.feature1
-rw-r--r--synapse/events/utils.py2
-rw-r--r--tests/events/test_utils.py43
3 files changed, 46 insertions, 0 deletions
diff --git a/changelog.d/10489.feature b/changelog.d/10489.feature
new file mode 100644
index 0000000000..df8bb51167
--- /dev/null
+++ b/changelog.d/10489.feature
@@ -0,0 +1 @@
+Update support for [MSC3083](https://github.com/matrix-org/matrix-doc/pull/3083) to consider changes in the MSC around which servers can issue join events.
diff --git a/synapse/events/utils.py b/synapse/events/utils.py
index ec96999e4e..f4da9e0923 100644
--- a/synapse/events/utils.py
+++ b/synapse/events/utils.py
@@ -109,6 +109,8 @@ def prune_event_dict(room_version: RoomVersion, event_dict: dict) -> dict:
         add_fields("creator")
     elif event_type == EventTypes.JoinRules:
         add_fields("join_rule")
+        if room_version.msc3083_join_rules:
+            add_fields("allow")
     elif event_type == EventTypes.PowerLevels:
         add_fields(
             "users",
diff --git a/tests/events/test_utils.py b/tests/events/test_utils.py
index 9274ce4c39..e2a5fc018c 100644
--- a/tests/events/test_utils.py
+++ b/tests/events/test_utils.py
@@ -301,6 +301,49 @@ class PruneEventTestCase(unittest.TestCase):
             room_version=RoomVersions.MSC2176,
         )
 
+    def test_join_rules(self):
+        """Join rules events have changed behavior starting with MSC3083."""
+        self.run_test(
+            {
+                "type": "m.room.join_rules",
+                "event_id": "$test:domain",
+                "content": {
+                    "join_rule": "invite",
+                    "allow": [],
+                    "other_key": "stripped",
+                },
+            },
+            {
+                "type": "m.room.join_rules",
+                "event_id": "$test:domain",
+                "content": {"join_rule": "invite"},
+                "signatures": {},
+                "unsigned": {},
+            },
+        )
+
+        # After MSC3083, alias events have no special behavior.
+        self.run_test(
+            {
+                "type": "m.room.join_rules",
+                "content": {
+                    "join_rule": "invite",
+                    "allow": [],
+                    "other_key": "stripped",
+                },
+            },
+            {
+                "type": "m.room.join_rules",
+                "content": {
+                    "join_rule": "invite",
+                    "allow": [],
+                },
+                "signatures": {},
+                "unsigned": {},
+            },
+            room_version=RoomVersions.MSC3083,
+        )
+
 
 class SerializeEventTestCase(unittest.TestCase):
     def serialize(self, ev, fields):