Revert "Prevent showing non-fed rooms in fed /publicRooms"

4 files changed, 17 insertions, 70 deletions

diff --git a/synapse/federation/transport/server.py b/synapse/federation/transport/server.py
index 5ba94be2ec..a2396ab466 100644
--- a/synapse/federation/transport/server.py
+++ b/synapse/federation/transport/server.py
@@ -736,8 +736,7 @@ class PublicRoomList(BaseFederationServlet):
 
         data = yield self.handler.get_local_public_room_list(
             limit, since_token,
-            network_tuple=network_tuple,
-            from_federation=True,
+            network_tuple=network_tuple
         )
         defer.returnValue((200, data))
 
diff --git a/synapse/groups/groups_server.py b/synapse/groups/groups_server.py
index a7eaead56b..633c865ed8 100644
--- a/synapse/groups/groups_server.py
+++ b/synapse/groups/groups_server.py
@@ -113,7 +113,8 @@ class GroupsServerHandler(object):
             room_id = room_entry["room_id"]
             joined_users = yield self.store.get_users_in_room(room_id)
             entry = yield self.room_list_handler.generate_room_entry(
-                room_id, len(joined_users), with_alias=False, allow_private=True,
+                room_id, len(joined_users),
+                with_alias=False, allow_private=True,
             )
             entry = dict(entry)  # so we don't change whats cached
             entry.pop("room_id", None)
@@ -543,7 +544,8 @@ class GroupsServerHandler(object):
 
             joined_users = yield self.store.get_users_in_room(room_id)
             entry = yield self.room_list_handler.generate_room_entry(
-                room_id, len(joined_users), with_alias=False, allow_private=True,
+                room_id, len(joined_users),
+                with_alias=False, allow_private=True,
             )
 
             if not entry:
diff --git a/synapse/handlers/room_list.py b/synapse/handlers/room_list.py
index c02fedcfe4..13e212d669 100644
--- a/synapse/handlers/room_list.py
+++ b/synapse/handlers/room_list.py
@@ -47,21 +47,19 @@ class RoomListHandler(BaseHandler):
         self.response_cache = ResponseCache(hs, "room_list")
         self.remote_response_cache = ResponseCache(hs, "remote_room_list",
                                                    timeout_ms=30 * 1000)
-        self.config = hs.get_config()
 
     def get_local_public_room_list(self, limit=None, since_token=None,
                                    search_filter=None,
-                                   network_tuple=EMPTY_THIRD_PARTY_ID,
-                                   from_federation=False):
+                                   network_tuple=EMPTY_THIRD_PARTY_ID,):
         """Generate a local public room list.
 
         There are multiple different lists: the main one plus one per third
         party network. A client can ask for a specific list or to return all.
 
         Args:
-            limit (int|None)
-            since_token (str|None)
-            search_filter (dict|None)
+            limit (int)
+            since_token (str)
+            search_filter (dict)
             network_tuple (ThirdPartyInstanceID): Which public list to use.
                 This can be (None, None) to indicate the main list, or a particular
                 appservice and network id to use an appservice specific one.
@@ -89,31 +87,14 @@ class RoomListHandler(BaseHandler):
         return self.response_cache.wrap(
             key,
             self._get_public_room_list,
-            limit, since_token,
-            network_tuple=network_tuple, from_federation=from_federation,
+            limit, since_token, network_tuple=network_tuple,
         )
 
     @defer.inlineCallbacks
     def _get_public_room_list(self, limit=None, since_token=None,
                               search_filter=None,
                               network_tuple=EMPTY_THIRD_PARTY_ID,
-                              from_federation=False,
                               timeout=None,):
-        """Generate a public room list.
-
-        Args:
-            limit (int|None): Maximum amount of rooms to return.
-            since_token (str|None)
-            search_filter (dict|None): Dictionary to filter rooms by.
-            network_tuple (ThirdPartyInstanceID): Which public list to use.
-                This can be (None, None) to indicate the main list, or a particular
-                appservice and network id to use an appservice specific one.
-                Setting to None returns all public rooms across all lists.
-            from_federation (bool): Whether this request originated from a
-                federating server or a client. Used for room filtering.
-            timeout (int|None): Amount of seconds to wait for a response before
-                timing out.
-        """
         if since_token and since_token != "END":
             since_token = RoomListNextBatch.from_token(since_token)
         else:
@@ -236,8 +217,7 @@ class RoomListHandler(BaseHandler):
             yield concurrently_execute(
                 lambda r: self._append_room_entry_to_chunk(
                     r, rooms_to_num_joined[r],
-                    chunk, limit, search_filter,
-                    from_federation=from_federation,
+                    chunk, limit, search_filter
                 ),
                 batch, 5,
             )
@@ -308,51 +288,23 @@ class RoomListHandler(BaseHandler):
 
     @defer.inlineCallbacks
     def _append_room_entry_to_chunk(self, room_id, num_joined_users, chunk, limit,
-                                    search_filter, from_federation=False):
+                                    search_filter):
         """Generate the entry for a room in the public room list and append it
         to the `chunk` if it matches the search filter
-
-        Args:
-            room_id (str): The ID of the room.
-            num_joined_users (int): The number of joined users in the room.
-            chunk (list)
-            limit (int|None): Maximum amount of rooms to display. Function will
-                return if length of chunk is greater than limit + 1.
-            search_filter (dict|None)
-            from_federation (bool): Whether this request originated from a
-                federating server or a client. Used for room filtering.
         """
         if limit and len(chunk) > limit + 1:
             # We've already got enough, so lets just drop it.
             return
 
         result = yield self.generate_room_entry(room_id, num_joined_users)
-        if not result:
-            return
-
-        if from_federation and not result.get("m.federate", True):
-            # This is a room that other servers cannot join. Do not show them
-            # this room.
-            return
 
-        if _matches_room_entry(result, search_filter):
+        if result and _matches_room_entry(result, search_filter):
             chunk.append(result)
 
-    @cachedInlineCallbacks(num_args=2, cache_context=True)
-    def generate_room_entry(self, room_id, num_joined_users,
-                            cache_context, with_alias=True, allow_private=False):
+    @cachedInlineCallbacks(num_args=1, cache_context=True)
+    def generate_room_entry(self, room_id, num_joined_users, cache_context,
+                            with_alias=True, allow_private=False):
         """Returns the entry for a room
-
-        Args:
-            room_id (str): The room's ID.
-            num_joined_users (int): Number of users in the room.
-            cache_context: Information for cached responses.
-            with_alias (bool): Whether to return the room's aliases in the result.
-            allow_private (bool): Whether invite-only rooms should be shown.
-
-        Returns:
-            Deferred[dict|None]: Returns a room entry as a dictionary, or None if this
-            room was determined not to be shown publicly.
         """
         result = {
             "room_id": room_id,
@@ -366,7 +318,6 @@ class RoomListHandler(BaseHandler):
         event_map = yield self.store.get_events([
             event_id for key, event_id in iteritems(current_state_ids)
             if key[0] in (
-                EventTypes.Create,
                 EventTypes.JoinRules,
                 EventTypes.Name,
                 EventTypes.Topic,
@@ -383,17 +334,12 @@ class RoomListHandler(BaseHandler):
         }
 
         # Double check that this is actually a public room.
-
         join_rules_event = current_state.get((EventTypes.JoinRules, ""))
         if join_rules_event:
             join_rule = join_rules_event.content.get("join_rule", None)
             if not allow_private and join_rule and join_rule != JoinRules.PUBLIC:
                 defer.returnValue(None)
 
-        # Return whether this room is open to federation users or not
-        create_event = current_state.get((EventTypes.Create, ""))
-        result["m.federate"] = create_event.content.get("m.federate", True)
-
         if with_alias:
             aliases = yield self.store.get_aliases_for_room(
                 room_id, on_invalidate=cache_context.invalidate
diff --git a/synapse/server.pyi b/synapse/server.pyi
index fb8df56cd5..06cd083a74 100644
--- a/synapse/server.pyi
+++ b/synapse/server.pyi
@@ -7,9 +7,9 @@ import synapse.handlers.auth
 import synapse.handlers.deactivate_account
 import synapse.handlers.device
 import synapse.handlers.e2e_keys
-import synapse.handlers.message
 import synapse.handlers.room
 import synapse.handlers.room_member
+import synapse.handlers.message
 import synapse.handlers.set_password
 import synapse.rest.media.v1.media_repository
 import synapse.server_notices.server_notices_manager