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-rw-r--r--synapse/federation/federation_server.py8
-rw-r--r--synapse/federation/transport/client.py14
-rw-r--r--synapse/federation/transport/server.py25
3 files changed, 43 insertions, 4 deletions
diff --git a/synapse/federation/federation_server.py b/synapse/federation/federation_server.py
index e15228e70b..a2327f24b6 100644
--- a/synapse/federation/federation_server.py
+++ b/synapse/federation/federation_server.py
@@ -18,6 +18,7 @@ from .federation_base import FederationBase
 from .units import Transaction, Edu
 
 from synapse.util import async
+from synapse.util.logcontext import make_deferred_yieldable, preserve_fn
 from synapse.util.logutils import log_function
 from synapse.util.caches.response_cache import ResponseCache
 from synapse.events import FrozenEvent
@@ -253,12 +254,13 @@ class FederationServer(FederationBase):
         result = self._state_resp_cache.get((room_id, event_id))
         if not result:
             with (yield self._server_linearizer.queue((origin, room_id))):
-                resp = yield self._state_resp_cache.set(
+                d = self._state_resp_cache.set(
                     (room_id, event_id),
-                    self._on_context_state_request_compute(room_id, event_id)
+                    preserve_fn(self._on_context_state_request_compute)(room_id, event_id)
                 )
+                resp = yield make_deferred_yieldable(d)
         else:
-            resp = yield result
+            resp = yield make_deferred_yieldable(result)
 
         defer.returnValue((200, resp))
 
diff --git a/synapse/federation/transport/client.py b/synapse/federation/transport/client.py
index d25ae1b282..1f3ce238f6 100644
--- a/synapse/federation/transport/client.py
+++ b/synapse/federation/transport/client.py
@@ -545,6 +545,20 @@ class TransportLayerClient(object):
             ignore_backoff=True,
         )
 
+    def update_room_in_group(self, destination, group_id, requester_user_id, room_id,
+                             config_key, content):
+        """Update room in group
+        """
+        path = PREFIX + "/groups/%s/room/%s/config/%s" % (group_id, room_id, config_key,)
+
+        return self.client.post_json(
+            destination=destination,
+            path=path,
+            args={"requester_user_id": requester_user_id},
+            data=content,
+            ignore_backoff=True,
+        )
+
     def remove_room_from_group(self, destination, group_id, requester_user_id, room_id):
         """Remove a room from a group
         """
diff --git a/synapse/federation/transport/server.py b/synapse/federation/transport/server.py
index 8f3c14c303..2b02b021ec 100644
--- a/synapse/federation/transport/server.py
+++ b/synapse/federation/transport/server.py
@@ -676,7 +676,7 @@ class FederationGroupsRoomsServlet(BaseFederationServlet):
 class FederationGroupsAddRoomsServlet(BaseFederationServlet):
     """Add/remove room from group
     """
-    PATH = "/groups/(?P<group_id>[^/]*)/room/(?<room_id>)$"
+    PATH = "/groups/(?P<group_id>[^/]*)/room/(?P<room_id>[^/]*)$"
 
     @defer.inlineCallbacks
     def on_POST(self, origin, content, query, group_id, room_id):
@@ -703,6 +703,27 @@ class FederationGroupsAddRoomsServlet(BaseFederationServlet):
         defer.returnValue((200, new_content))
 
 
+class FederationGroupsAddRoomsConfigServlet(BaseFederationServlet):
+    """Update room config in group
+    """
+    PATH = (
+        "/groups/(?P<group_id>[^/]*)/room/(?P<room_id>[^/]*)"
+        "/config/(?P<config_key>[^/]*)$"
+    )
+
+    @defer.inlineCallbacks
+    def on_POST(self, origin, content, query, group_id, room_id, config_key):
+        requester_user_id = parse_string_from_args(query, "requester_user_id")
+        if get_domain_from_id(requester_user_id) != origin:
+            raise SynapseError(403, "requester_user_id doesn't match origin")
+
+        result = yield self.groups_handler.update_room_in_group(
+            group_id, requester_user_id, room_id, config_key, content,
+        )
+
+        defer.returnValue((200, result))
+
+
 class FederationGroupsUsersServlet(BaseFederationServlet):
     """Get the users in a group on behalf of a user
     """
@@ -1142,6 +1163,8 @@ GROUP_SERVER_SERVLET_CLASSES = (
     FederationGroupsRolesServlet,
     FederationGroupsRoleServlet,
     FederationGroupsSummaryUsersServlet,
+    FederationGroupsAddRoomsServlet,
+    FederationGroupsAddRoomsConfigServlet,
 )