summary refs log tree commit diff
path: root/synapse/federation/federation_server.py
diff options
context:
space:
mode:
authorRichard van der Hoff <richard@matrix.org>2018-07-25 22:25:41 +0100
committerRichard van der Hoff <richard@matrix.org>2018-08-03 16:08:32 +0100
commit0d63d93ca834771324f0c5b9340346ad2113a4b1 (patch)
treea76a1d817b4f60034ca7cc7e7b3b6bc308189ff8 /synapse/federation/federation_server.py
parentBasic support for room versioning (diff)
downloadsynapse-0d63d93ca834771324f0c5b9340346ad2113a4b1.tar.xz
Enforce compatibility when processing make_join requests
Reject make_join requests from servers which do not support the room version.

Also include the room version in the response.
Diffstat (limited to 'synapse/federation/federation_server.py')
-rw-r--r--synapse/federation/federation_server.py21
1 files changed, 18 insertions, 3 deletions
diff --git a/synapse/federation/federation_server.py b/synapse/federation/federation_server.py
index bf89d568af..2b62f687b6 100644
--- a/synapse/federation/federation_server.py
+++ b/synapse/federation/federation_server.py
@@ -27,7 +27,13 @@ from twisted.internet.abstract import isIPAddress
 from twisted.python import failure
 
 from synapse.api.constants import EventTypes
-from synapse.api.errors import AuthError, FederationError, NotFoundError, SynapseError
+from synapse.api.errors import (
+    AuthError,
+    FederationError,
+    IncompatibleRoomVersionError,
+    NotFoundError,
+    SynapseError,
+)
 from synapse.crypto.event_signing import compute_event_signature
 from synapse.federation.federation_base import FederationBase, event_from_pdu_json
 from synapse.federation.persistence import TransactionActions
@@ -323,12 +329,21 @@ class FederationServer(FederationBase):
         defer.returnValue((200, resp))
 
     @defer.inlineCallbacks
-    def on_make_join_request(self, origin, room_id, user_id):
+    def on_make_join_request(self, origin, room_id, user_id, supported_versions):
         origin_host, _ = parse_server_name(origin)
         yield self.check_server_matches_acl(origin_host, room_id)
+
+        room_version = yield self.store.get_room_version(room_id)
+        if room_version not in supported_versions:
+            logger.warn("Room version %s not in %s", room_version, supported_versions)
+            raise IncompatibleRoomVersionError(room_version=room_version)
+
         pdu = yield self.handler.on_make_join_request(room_id, user_id)
         time_now = self._clock.time_msec()
-        defer.returnValue({"event": pdu.get_pdu_json(time_now)})
+        defer.returnValue({
+            "event": pdu.get_pdu_json(time_now),
+            "room_version": room_version,
+        })
 
     @defer.inlineCallbacks
     def on_invite_request(self, origin, content):