Merge branch 'develop' of github.com:matrix-org/synapse into anoa/room_upgrade_federatable

5 files changed, 34 insertions, 3 deletions

diff --git a/synapse/__init__.py b/synapse/__init__.py
index d6a191ccc6..5da59aa924 100644
--- a/synapse/__init__.py
+++ b/synapse/__init__.py
@@ -27,4 +27,4 @@ try:
 except ImportError:
     pass
 
-__version__ = "0.34.1.1"
+__version__ = "0.99.0rc2"
diff --git a/synapse/api/constants.py b/synapse/api/constants.py
index 0cbae9429b..f47c33a074 100644
--- a/synapse/api/constants.py
+++ b/synapse/api/constants.py
@@ -73,6 +73,7 @@ class EventTypes(object):
     RoomHistoryVisibility = "m.room.history_visibility"
     CanonicalAlias = "m.room.canonical_alias"
     RoomAvatar = "m.room.avatar"
+    RoomEncryption = "m.room.encryption"
     GuestAccess = "m.room.guest_access"
 
     # These are used for validation
@@ -109,7 +110,7 @@ class RoomVersions(object):
 
 
 class RoomDisposition(object):
-    STABLE = "stable",
+    STABLE = "stable"
     UNSTABLE = "unstable"
 
 
diff --git a/synapse/config/api.py b/synapse/config/api.py
index 403d96ba76..9f25bbc5cb 100644
--- a/synapse/config/api.py
+++ b/synapse/config/api.py
@@ -24,6 +24,7 @@ class ApiConfig(Config):
             EventTypes.JoinRules,
             EventTypes.CanonicalAlias,
             EventTypes.RoomAvatar,
+            EventTypes.RoomEncryption,
             EventTypes.Name,
         ])
 
@@ -36,5 +37,6 @@ class ApiConfig(Config):
             - "{JoinRules}"
             - "{CanonicalAlias}"
             - "{RoomAvatar}"
+            - "{RoomEncryption}"
             - "{Name}"
         """.format(**vars(EventTypes))
diff --git a/synapse/federation/federation_server.py b/synapse/federation/federation_server.py
index aeadc9c564..3da86d4ba6 100644
--- a/synapse/federation/federation_server.py
+++ b/synapse/federation/federation_server.py
@@ -148,6 +148,22 @@ class FederationServer(FederationBase):
 
         logger.debug("[%s] Transaction is new", transaction.transaction_id)
 
+        # Reject if PDU count > 50 and EDU count > 100
+        if (len(transaction.pdus) > 50
+                or (hasattr(transaction, "edus") and len(transaction.edus) > 100)):
+
+            logger.info(
+                "Transaction PDU or EDU count too large. Returning 400",
+            )
+
+            response = {}
+            yield self.transaction_actions.set_response(
+                origin,
+                transaction,
+                400, response
+            )
+            defer.returnValue((400, response))
+
         received_pdus_counter.inc(len(transaction.pdus))
 
         origin_host, _ = parse_server_name(origin)
diff --git a/synapse/handlers/sync.py b/synapse/handlers/sync.py
index f7f768f751..28857bfc1c 100644
--- a/synapse/handlers/sync.py
+++ b/synapse/handlers/sync.py
@@ -1473,10 +1473,22 @@ class SyncHandler(object):
                 if since_token and since_token.is_after(leave_token):
                     continue
 
+                # If this is an out of band message, like a remote invite
+                # rejection, we include it in the recents batch. Otherwise, we
+                # let _load_filtered_recents handle fetching the correct
+                # batches.
+                #
+                # This is all screaming out for a refactor, as the logic here is
+                # subtle and the moving parts numerous.
+                if leave_event.internal_metadata.is_out_of_band_membership():
+                    batch_events = [leave_event]
+                else:
+                    batch_events = None
+
                 room_entries.append(RoomSyncResultBuilder(
                     room_id=room_id,
                     rtype="archived",
-                    events=None,
+                    events=batch_events,
                     newly_joined=room_id in newly_joined_rooms,
                     full_state=False,
                     since_token=since_token,