mirror of https://github.com/watcha-fr/synapse
Erik Johnston
8 years ago
parent
1b01488d27
commit
a70a43bc51
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# -*- coding: utf-8 -*- |
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# Copyright 2014 - 2016 OpenMarket Ltd |
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# |
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# Licensed under the Apache License, Version 2.0 (the "License"); |
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# you may not use this file except in compliance with the License. |
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# You may obtain a copy of the License at |
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# |
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# http://www.apache.org/licenses/LICENSE-2.0 |
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# |
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# Unless required by applicable law or agreed to in writing, software |
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# distributed under the License is distributed on an "AS IS" BASIS, |
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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# See the License for the specific language governing permissions and |
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# limitations under the License. |
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|
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from twisted.internet import defer |
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from ._base import BaseHandler |
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from synapse.api.constants import ( |
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EventTypes, JoinRules, Membership, |
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) |
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from synapse.api.errors import SynapseError |
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from synapse.util.async import concurrently_execute |
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from synapse.util.caches.response_cache import ResponseCache |
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import logging |
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logger = logging.getLogger(__name__) |
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REMOTE_ROOM_LIST_POLL_INTERVAL = 60 * 1000 |
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class RoomListHandler(BaseHandler): |
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def __init__(self, hs): |
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super(RoomListHandler, self).__init__(hs) |
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self.response_cache = ResponseCache(hs) |
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self.remote_list_request_cache = ResponseCache(hs) |
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self.remote_list_cache = {} |
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self.fetch_looping_call = hs.get_clock().looping_call( |
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self.fetch_all_remote_lists, REMOTE_ROOM_LIST_POLL_INTERVAL |
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) |
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self.fetch_all_remote_lists() |
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|
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def get_local_public_room_list(self): |
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result = self.response_cache.get(()) |
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if not result: |
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result = self.response_cache.set((), self._get_public_room_list()) |
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return result |
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@defer.inlineCallbacks |
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def _get_public_room_list(self): |
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room_ids = yield self.store.get_public_room_ids() |
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results = [] |
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@defer.inlineCallbacks |
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def handle_room(room_id): |
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current_state = yield self.state_handler.get_current_state(room_id) |
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# Double check that this is actually a public room. |
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join_rules_event = current_state.get((EventTypes.JoinRules, "")) |
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if join_rules_event: |
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join_rule = join_rules_event.content.get("join_rule", None) |
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if join_rule and join_rule != JoinRules.PUBLIC: |
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defer.returnValue(None) |
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result = {"room_id": room_id} |
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num_joined_users = len([ |
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1 for _, event in current_state.items() |
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if event.type == EventTypes.Member |
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and event.membership == Membership.JOIN |
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]) |
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if num_joined_users == 0: |
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return |
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result["num_joined_members"] = num_joined_users |
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aliases = yield self.store.get_aliases_for_room(room_id) |
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if aliases: |
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result["aliases"] = aliases |
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name_event = yield current_state.get((EventTypes.Name, "")) |
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if name_event: |
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name = name_event.content.get("name", None) |
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if name: |
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result["name"] = name |
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topic_event = current_state.get((EventTypes.Topic, "")) |
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if topic_event: |
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topic = topic_event.content.get("topic", None) |
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if topic: |
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result["topic"] = topic |
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canonical_event = current_state.get((EventTypes.CanonicalAlias, "")) |
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if canonical_event: |
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canonical_alias = canonical_event.content.get("alias", None) |
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if canonical_alias: |
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result["canonical_alias"] = canonical_alias |
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visibility_event = current_state.get((EventTypes.RoomHistoryVisibility, "")) |
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visibility = None |
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if visibility_event: |
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visibility = visibility_event.content.get("history_visibility", None) |
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result["world_readable"] = visibility == "world_readable" |
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guest_event = current_state.get((EventTypes.GuestAccess, "")) |
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guest = None |
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if guest_event: |
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guest = guest_event.content.get("guest_access", None) |
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result["guest_can_join"] = guest == "can_join" |
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avatar_event = current_state.get(("m.room.avatar", "")) |
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if avatar_event: |
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avatar_url = avatar_event.content.get("url", None) |
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if avatar_url: |
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result["avatar_url"] = avatar_url |
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results.append(result) |
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yield concurrently_execute(handle_room, room_ids, 10) |
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# FIXME (erikj): START is no longer a valid value |
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defer.returnValue({"start": "START", "end": "END", "chunk": results}) |
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@defer.inlineCallbacks |
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def fetch_all_remote_lists(self): |
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deferred = self.hs.get_replication_layer().get_public_rooms( |
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self.hs.config.secondary_directory_servers |
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) |
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self.remote_list_request_cache.set((), deferred) |
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self.remote_list_cache = yield deferred |
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@defer.inlineCallbacks |
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def get_remote_public_room_list(self, server_name): |
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res = yield self.hs.get_replication_layer().get_public_rooms( |
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[server_name] |
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) |
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if server_name not in res: |
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raise SynapseError(404, "Server not found") |
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defer.returnValue(res[server_name]) |
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@defer.inlineCallbacks |
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def get_aggregated_public_room_list(self): |
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""" |
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Get the public room list from this server and the servers |
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specified in the secondary_directory_servers config option. |
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XXX: Pagination... |
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""" |
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# We return the results from out cache which is updated by a looping call, |
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# unless we're missing a cache entry, in which case wait for the result |
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# of the fetch if there's one in progress. If not, omit that server. |
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wait = False |
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for s in self.hs.config.secondary_directory_servers: |
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if s not in self.remote_list_cache: |
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logger.warn("No cached room list from %s: waiting for fetch", s) |
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wait = True |
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break |
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if wait and self.remote_list_request_cache.get(()): |
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yield self.remote_list_request_cache.get(()) |
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public_rooms = yield self.get_local_public_room_list() |
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# keep track of which room IDs we've seen so we can de-dup |
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room_ids = set() |
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# tag all the ones in our list with our server name. |
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# Also add the them to the de-deping set |
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for room in public_rooms['chunk']: |
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room["server_name"] = self.hs.hostname |
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room_ids.add(room["room_id"]) |
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# Now add the results from federation |
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for server_name, server_result in self.remote_list_cache.items(): |
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for room in server_result["chunk"]: |
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if room["room_id"] not in room_ids: |
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room["server_name"] = server_name |
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public_rooms["chunk"].append(room) |
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room_ids.add(room["room_id"]) |
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defer.returnValue(public_rooms) |
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