diff --git a/synapse/federation/transaction_queue.py b/synapse/federation/transaction_queue.py index 6b3a7abb9e..65c6673a87 100644 --- a/synapse/federation/transaction_queue.py +++ b/synapse/federation/transaction_queue.py @@ -100,6 +100,7 @@ class TransactionQueue(object): self.pending_failures_by_dest = {} self.last_device_stream_id_by_dest = {} + self.last_device_list_stream_id_by_dest = {} # HACK to get unique tx id self._next_txn_id = int(self.clock.time_msec()) @@ -356,7 +357,7 @@ class TransactionQueue(object): success = yield self._send_new_transaction( destination, pending_pdus, pending_edus, pending_failures, device_stream_id, - should_delete_from_device_stream=bool(device_message_edus), + includes_device_messages=bool(device_message_edus), limiter=limiter, ) if not success: @@ -373,6 +374,8 @@ class TransactionQueue(object): @defer.inlineCallbacks def _get_new_device_messages(self, destination): + # TODO: Send appropriate device list messages + last_device_stream_id = self.last_device_stream_id_by_dest.get(destination, 0) to_device_stream_id = self.store.get_to_device_stream_token() contents, stream_id = yield self.store.get_new_device_msgs_for_remote( @@ -387,13 +390,27 @@ class TransactionQueue(object): ) for content in contents ] + + last_device_list = self.last_device_list_stream_id_by_dest.get(destination, 0) + now_stream_id, results = yield self.store.get_devices_by_remote( + destination, last_device_list + ) + edus.extend( + Edu( + origin=self.server_name, + destination=destination, + edu_type="m.device_list_update", + content=content, + ) + for content in results + ) defer.returnValue((edus, stream_id)) @measure_func("_send_new_transaction") @defer.inlineCallbacks def _send_new_transaction(self, destination, pending_pdus, pending_edus, pending_failures, device_stream_id, - should_delete_from_device_stream, limiter): + includes_device_messages, limiter): # Sort based on the order field pending_pdus.sort(key=lambda t: t[1]) @@ -506,7 +523,8 @@ class TransactionQueue(object): success = False else: # Remove the acknowledged device messages from the database - if should_delete_from_device_stream: + # Only bother if we actually sent some device messages + if includes_device_messages: yield self.store.delete_device_msgs_for_remote( destination, device_stream_id ) diff --git a/synapse/handlers/device.py b/synapse/handlers/device.py index aa68755936..d92780b642 100644 --- a/synapse/handlers/device.py +++ b/synapse/handlers/device.py @@ -15,6 +15,7 @@ from synapse.api import errors from synapse.util import stringutils +from synapse.types import get_domain_from_id from twisted.internet import defer from ._base import BaseHandler @@ -27,6 +28,8 @@ class DeviceHandler(BaseHandler): def __init__(self, hs): super(DeviceHandler, self).__init__(hs) + self.state = hs.get_state_handler() + @defer.inlineCallbacks def check_device_registered(self, user_id, device_id, initial_device_display_name=None): @@ -45,29 +48,29 @@ class DeviceHandler(BaseHandler): str: device id (generated if none was supplied) """ if device_id is not None: - yield self.store.store_device( + new_device = yield self.store.store_device( user_id=user_id, device_id=device_id, initial_device_display_name=initial_device_display_name, - ignore_if_known=True, ) + if new_device: + yield self.notify_device_update(user_id, device_id) defer.returnValue(device_id) # if the device id is not specified, we'll autogen one, but loop a few # times in case of a clash. attempts = 0 while attempts < 5: - try: - device_id = stringutils.random_string(10).upper() - yield self.store.store_device( - user_id=user_id, - device_id=device_id, - initial_device_display_name=initial_device_display_name, - ignore_if_known=False, - ) + device_id = stringutils.random_string(10).upper() + new_device = yield self.store.store_device( + user_id=user_id, + device_id=device_id, + initial_device_display_name=initial_device_display_name, + ) + if new_device: + yield self.notify_device_update(user_id, device_id) defer.returnValue(device_id) - except errors.StoreError: - attempts += 1 + attempts += 1 raise errors.StoreError(500, "Couldn't generate a device ID.") @@ -147,6 +150,8 @@ class DeviceHandler(BaseHandler): user_id=user_id, device_id=device_id ) + yield self.notify_device_update(user_id, device_id) + @defer.inlineCallbacks def update_device(self, user_id, device_id, content): """ Update the given device @@ -166,12 +171,48 @@ class DeviceHandler(BaseHandler): device_id, new_display_name=content.get("display_name") ) + yield self.notify_device_update(user_id, device_id) except errors.StoreError, e: if e.code == 404: raise errors.NotFoundError() else: raise + @defer.inlineCallbacks + def notify_device_update(self, user_id, device_id): + rooms = yield self.store.get_rooms_for_user(user_id) + room_ids = [r.room_id for r in rooms] + + hosts = set() + for room_id in room_ids: + users = yield self.state.get_current_user_in_room(room_id) + hosts.update(get_domain_from_id(u) for u in users) + hosts.discard(self.server_name) + + position = yield self.store.add_device_change_to_streams( + user_id, device_id, list(hosts) + ) + + yield self.notifier.on_new_event( + "device_list_key", position, rooms=room_ids, + ) + + for host in hosts: + self.federation.send_device_messages(host) + + @defer.inlineCallbacks + def get_device_list_changes(self, user_id, room_ids, from_key): + room_ids = frozenset(room_ids) + + user_ids_changed = set() + changed = yield self.store.get_user_whose_devices_changed(from_key) + for other_user_id in changed: + other_rooms = yield self.store.get_rooms_for_user(other_user_id) + if room_ids.intersection(e.room_id for e in other_rooms): + user_ids_changed.add(other_user_id) + + defer.returnValue(user_ids_changed) + def _update_device_from_client_ips(device, client_ips): ip = client_ips.get((device["user_id"], device["device_id"]), {}) diff --git a/synapse/handlers/e2e_keys.py b/synapse/handlers/e2e_keys.py index b63a660c06..38c2a2d39e 100644 --- a/synapse/handlers/e2e_keys.py +++ b/synapse/handlers/e2e_keys.py @@ -259,6 +259,7 @@ class E2eKeysHandler(object): user_id, device_id, time_now, encode_canonical_json(device_keys) ) + yield self.device_handler.notify_device_update(user_id, device_id) one_time_keys = keys.get("one_time_keys", None) if one_time_keys: diff --git a/synapse/handlers/sync.py b/synapse/handlers/sync.py index c880f61685..06bf626367 100644 --- a/synapse/handlers/sync.py +++ b/synapse/handlers/sync.py @@ -115,6 +115,7 @@ class SyncResult(collections.namedtuple("SyncResult", [ "invited", # InvitedSyncResult for each invited room. "archived", # ArchivedSyncResult for each archived room. "to_device", # List of direct messages for the device. + "device_lists", # List of user_ids whose devices have chanegd ])): __slots__ = [] @@ -143,6 +144,7 @@ class SyncHandler(object): self.clock = hs.get_clock() self.response_cache = ResponseCache(hs) self.state = hs.get_state_handler() + self.device_handler = hs.get_device_handler() def wait_for_sync_for_user(self, sync_config, since_token=None, timeout=0, full_state=False): @@ -544,6 +546,16 @@ class SyncHandler(object): yield self._generate_sync_entry_for_to_device(sync_result_builder) + if since_token and since_token.device_list_key: + user_id = sync_config.user.to_string() + rooms = yield self.store.get_rooms_for_user(user_id) + joined_room_ids = set(r.room_id for r in rooms) + device_lists = yield self.device_handler.get_device_list_changes( + user_id, joined_room_ids, since_token.device_list_key + ) + else: + device_lists = [] + defer.returnValue(SyncResult( presence=sync_result_builder.presence, account_data=sync_result_builder.account_data, @@ -551,6 +563,7 @@ class SyncHandler(object): invited=sync_result_builder.invited, archived=sync_result_builder.archived, to_device=sync_result_builder.to_device, + device_lists=device_lists, next_batch=sync_result_builder.now_token, )) diff --git a/synapse/rest/client/v2_alpha/sync.py b/synapse/rest/client/v2_alpha/sync.py index 7199ec883a..b3d8001638 100644 --- a/synapse/rest/client/v2_alpha/sync.py +++ b/synapse/rest/client/v2_alpha/sync.py @@ -170,12 +170,16 @@ class SyncRestServlet(RestServlet): ) archived = self.encode_archived( - sync_result.archived, time_now, requester.access_token_id, filter.event_fields + sync_result.archived, time_now, requester.access_token_id, + filter.event_fields, ) response_content = { "account_data": {"events": sync_result.account_data}, "to_device": {"events": sync_result.to_device}, + "device_lists": { + "changed": list(sync_result.device_lists), + }, "presence": self.encode_presence( sync_result.presence, time_now ), diff --git a/synapse/storage/__init__.py b/synapse/storage/__init__.py index e8495f1eb9..b9968debe5 100644 --- a/synapse/storage/__init__.py +++ b/synapse/storage/__init__.py @@ -116,6 +116,9 @@ class DataStore(RoomMemberStore, RoomStore, self._public_room_id_gen = StreamIdGenerator( db_conn, "public_room_list_stream", "stream_id" ) + self._device_list_id_gen = StreamIdGenerator( + db_conn, "device_lists_stream", "stream_id", + ) self._transaction_id_gen = IdGenerator(db_conn, "sent_transactions", "id") self._state_groups_id_gen = IdGenerator(db_conn, "state_groups", "id") @@ -210,6 +213,14 @@ class DataStore(RoomMemberStore, RoomStore, prefilled_cache=device_outbox_prefill, ) + device_list_max = self._device_list_id_gen.get_current_token() + self._device_list_stream_cache = StreamChangeCache( + "DeviceListStreamChangeCache", device_list_max, + ) + self._device_list_federation_stream_cache = StreamChangeCache( + "DeviceListFederationStreamChangeCache", device_list_max, + ) + cur = LoggingTransaction( db_conn.cursor(), name="_find_stream_orderings_for_times_txn", diff --git a/synapse/storage/_base.py b/synapse/storage/_base.py index 963ef999d5..05374682fd 100644 --- a/synapse/storage/_base.py +++ b/synapse/storage/_base.py @@ -387,6 +387,10 @@ class SQLBaseStore(object): Args: table : string giving the table name values : dict of new column names and values for them + + Returns: + bool: Whether the row was inserted or not. Only useful when + `or_ignore` is True """ try: yield self.runInteraction( @@ -398,6 +402,8 @@ class SQLBaseStore(object): # a cursor after we receive an error from the db. if not or_ignore: raise + defer.returnValue(False) + defer.returnValue(True) @staticmethod def _simple_insert_txn(txn, table, values): diff --git a/synapse/storage/devices.py b/synapse/storage/devices.py index 17920d4480..b594f501f9 100644 --- a/synapse/storage/devices.py +++ b/synapse/storage/devices.py @@ -13,6 +13,7 @@ # See the License for the specific language governing permissions and # limitations under the License. import logging +import ujson as json from twisted.internet import defer @@ -33,17 +34,13 @@ class DeviceStore(SQLBaseStore): user_id (str): id of user associated with the device device_id (str): id of device initial_device_display_name (str): initial displayname of the - device - ignore_if_known (bool): ignore integrity errors which mean the - device is already known + device. Ignored if device exists. Returns: - defer.Deferred - Raises: - StoreError: if ignore_if_known is False and the device was already - known + defer.Deferred: boolean whether the device was inserted or an + existing device existed with that ID. """ try: - yield self._simple_insert( + inserted = yield self._simple_insert( "devices", values={ "user_id": user_id, @@ -51,8 +48,9 @@ class DeviceStore(SQLBaseStore): "display_name": initial_device_display_name }, desc="store_device", - or_ignore=ignore_if_known, + or_ignore=True, ) + defer.returnValue(inserted) except Exception as e: logger.error("store_device with device_id=%s(%r) user_id=%s(%r)" " display_name=%s(%r) failed: %s", @@ -139,3 +137,156 @@ class DeviceStore(SQLBaseStore): ) defer.returnValue({d["device_id"]: d for d in devices}) + + def get_devices_by_remote(self, destination, from_stream_id): + now_stream_id = self._device_list_id_gen.get_current_token() + + has_changed = self._device_list_stream_cache.has_entity_changed( + destination, int(from_stream_id) + ) + if not has_changed: + defer.returnValue((now_stream_id, [])) + + return self.runInteraction( + "get_devices_by_remote", self._get_devices_by_remote_txn, + destination, from_stream_id, now_stream_id, + ) + + def _get_devices_by_remote_txn(self, txn, destination, from_stream_id, + now_stream_id): + sql = """ + SELECT user_id, device_id, max(stream_id) FROM device_lists_outbound_pokes + WHERE destination = ? AND stream_id > ? AND stream_id <= ? AND sent = ? + GROUP BY user_id, device_id + """ + txn.execute( + sql, (destination, from_stream_id, now_stream_id, False) + ) + rows = txn.fetchall() + + if not rows: + return now_stream_id, [] + + # maps (user_id, device_id) -> stream_id + query_map = {(r[0], r[1]): r[2] for r in rows} + devices = self._get_e2e_device_keys_txn( + txn, query_map.keys(), include_all_devices=True + ) + + prev_sent_id_sql = """ + SELECT coalesce(max(stream_id), 0) as stream_id + FROM device_lists_outbound_pokes + WHERE destination = ? AND user_id = ? AND sent = ? + """ + + results = [] + for user_id, user_devices in devices.iteritems(): + txn.execute(prev_sent_id_sql, (destination, user_id, True)) + rows = txn.fetchall() + prev_id = rows[0][0] + for device_id, result in user_devices.iteritems(): + stream_id = query_map[(user_id, device_id)] + result = { + "user_id": user_id, + "device_id": device_id, + "prev_id": prev_id, + "stream_id": stream_id, + } + + prev_id = stream_id + + key_json = result.get("key_json", None) + if key_json: + result["keys"] = json.loads(key_json) + device_display_name = result.get("device_display_name", None) + if device_display_name: + result["device_display_name"] = device_display_name + + results.setdefault(user_id, {})[device_id] = result + + return now_stream_id, results + + def mark_as_sent_devices_by_remote(self, destination, stream_id): + return self.runInteraction( + "mark_as_sent_devices_by_remote", self._mark_as_sent_devices_by_remote_txn, + destination, stream_id, + ) + + @defer.inlineCallbacks + def get_user_whose_devices_changed(self, from_key): + from_key = int(from_key) + changed = self._device_list_stream_cache.get_all_entities_changed(from_key) + if changed is not None: + defer.returnValue(set(changed)) + + sql = """ + SELECT user_id FROM device_lists_stream WHERE stream_id > ? + """ + rows = yield self._execute("get_user_whose_devices_changed", None, sql, from_key) + defer.returnValue(set(row["user_id"] for row in rows)) + + def _mark_as_sent_devices_by_remote_txn(self, txn, destination, stream_id): + sql = """ + DELETE FROM device_lists_outbound_pokes + WHERE destination = ? AND stream_id < ( + SELECT coalesce(max(stream_id), 0) FROM device_lists_outbound_pokes + WHERE destination = ? AND stream_id <= ? + ) + """ + txn.execute(sql, (destination, destination, stream_id,)) + + sql = """ + UPDATE device_lists_outbound_pokes SET sent = ? + WHERE destination = ? AND stream_id <= ? + """ + txn.execute(sql, (destination, True,)) + + @defer.inlineCallbacks + def add_device_change_to_streams(self, user_id, device_id, hosts): + # device_lists_stream + # device_lists_outbound_pokes + with self._device_list_id_gen.get_next() as stream_id: + yield self.runInteraction( + "add_device_change_to_streams", self._add_device_change_txn, + user_id, device_id, hosts, stream_id, + ) + defer.returnValue(stream_id) + + def _add_device_change_txn(self, txn, user_id, device_id, hosts, stream_id): + txn.call_after( + self._device_list_stream_cache.entity_has_changed, + user_id, stream_id, + ) + for host in hosts: + txn.call_after( + self._device_list_federation_stream_cache.entity_has_changed, + host, stream_id, + ) + + self._simple_insert_txn( + txn, + table="device_lists_stream", + values={ + "stream_id": stream_id, + "user_id": user_id, + "device_id": device_id, + } + ) + + self._simple_insert_many_txn( + txn, + table="device_lists_outbound_pokes", + values=[ + { + "destination": destination, + "stream_id": stream_id, + "user_id": user_id, + "device_id": device_id, + "sent": False, + } + for destination in hosts + ] + ) + + def get_device_stream_token(self): + return self._device_list_id_gen.get_current_token() diff --git a/synapse/storage/end_to_end_keys.py b/synapse/storage/end_to_end_keys.py index 385d607056..f82943a7a8 100644 --- a/synapse/storage/end_to_end_keys.py +++ b/synapse/storage/end_to_end_keys.py @@ -12,9 +12,7 @@ # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. # See the License for the specific language governing permissions and # limitations under the License. -import collections - -import twisted.internet.defer +from twisted.internet import defer from ._base import SQLBaseStore @@ -33,7 +31,7 @@ class EndToEndKeyStore(SQLBaseStore): } ) - def get_e2e_device_keys(self, query_list): + def get_e2e_device_keys(self, query_list, include_all_devices=False): """Fetch a list of device keys. Args: query_list(list): List of pairs of user_ids and device_ids. @@ -45,10 +43,11 @@ class EndToEndKeyStore(SQLBaseStore): return {} return self.runInteraction( - "get_e2e_device_keys", self._get_e2e_device_keys_txn, query_list + "get_e2e_device_keys", self._get_e2e_device_keys_txn, + query_list, include_all_devices, ) - def _get_e2e_device_keys_txn(self, txn, query_list): + def _get_e2e_device_keys_txn(self, txn, query_list, include_all_devices): query_clauses = [] query_params = [] @@ -63,23 +62,23 @@ class EndToEndKeyStore(SQLBaseStore): query_clauses.append(query_clause) sql = ( - "SELECT k.user_id, k.device_id, " + "SELECT user_id, device_id, " " d.display_name AS device_display_name, " " k.key_json" " FROM e2e_device_keys_json k" - " LEFT JOIN devices d ON d.user_id = k.user_id" - " AND d.device_id = k.device_id" + " %s JOIN devices d USING (user_id, device_id)" " WHERE %s" ) % ( + "FULL OUTER" if include_all_devices else "LEFT", " OR ".join("(" + q + ")" for q in query_clauses) ) txn.execute(sql, query_params) rows = self.cursor_to_dict(txn) - result = collections.defaultdict(dict) + result = {} for row in rows: - result[row["user_id"]][row["device_id"]] = row + result.setdefault(row["user_id"], {})[row["device_id"]] = row return result @@ -152,7 +151,7 @@ class EndToEndKeyStore(SQLBaseStore): "claim_e2e_one_time_keys", _claim_e2e_one_time_keys ) - @twisted.internet.defer.inlineCallbacks + @defer.inlineCallbacks def delete_e2e_keys_by_device(self, user_id, device_id): yield self._simple_delete( table="e2e_device_keys_json", diff --git a/synapse/storage/schema/delta/40/device_list_streams.sql b/synapse/storage/schema/delta/40/device_list_streams.sql new file mode 100644 index 0000000000..61cac63bbb --- /dev/null +++ b/synapse/storage/schema/delta/40/device_list_streams.sql @@ -0,0 +1,56 @@ +/* Copyright 2017 OpenMarket Ltd + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +CREATE TABLE device_list_streams_remote ( + list_id TEXT NOT NULL, + origin TEXT NOT NULL, + user_id TEXT NOT NULL, + is_full BOOLEAN NOT NULL, + ts BIGINT NOT NULL +); + +CREATE INDEX device_list_streams_remote_id_origin ON device_list_streams_remote( + origin, list_id, user_id +); + + +CREATE TABLE device_lists_remote_cache ( + user_id TEXT NOT NULL, + device_id TEXT NOT NULL, + content TEXT NOT NULL +); + +CREATE INDEX device_lists_remote_cache_id ON device_lists_remote_cache(user_id, device_id); + + +CREATE TABLE device_lists_stream ( + stream_id BIGINT NOT NULL, + user_id TEXT NOT NULL, + device_id TEXT NOT NULL +); + +CREATE INDEX device_lists_stream_id ON device_lists_stream(stream_id, user_id); + + +CREATE TABLE device_lists_outbound_pokes ( + destination TEXT NOT NULL, + stream_id BIGINT NOT NULL, + user_id TEXT NOT NULL, + device_id TEXT NOT NULL, + sent BOOLEAN NOT NULL +); + +CREATE INDEX device_lists_outbound_pokes_id ON device_lists_outbound_pokes(destination, stream_id); +CREATE INDEX device_lists_outbound_pokes_user ON device_lists_outbound_pokes(destination, user_id); diff --git a/synapse/streams/events.py b/synapse/streams/events.py index 4d44c3d4ca..91a59b0bae 100644 --- a/synapse/streams/events.py +++ b/synapse/streams/events.py @@ -44,6 +44,7 @@ class EventSources(object): def get_current_token(self): push_rules_key, _ = self.store.get_push_rules_stream_token() to_device_key = self.store.get_to_device_stream_token() + device_list_key = self.store.get_device_stream_token() token = StreamToken( room_key=( @@ -63,6 +64,7 @@ class EventSources(object): ), push_rules_key=push_rules_key, to_device_key=to_device_key, + device_list_key=device_list_key, ) defer.returnValue(token) @@ -70,6 +72,7 @@ class EventSources(object): def get_current_token_for_room(self, room_id): push_rules_key, _ = self.store.get_push_rules_stream_token() to_device_key = self.store.get_to_device_stream_token() + device_list_key = self.store.get_device_stream_token() token = StreamToken( room_key=( @@ -89,5 +92,6 @@ class EventSources(object): ), push_rules_key=push_rules_key, to_device_key=to_device_key, + device_list_key=device_list_key, ) defer.returnValue(token) diff --git a/synapse/types.py b/synapse/types.py index 3a3ab21d17..9666f9d73f 100644 --- a/synapse/types.py +++ b/synapse/types.py @@ -158,6 +158,7 @@ class StreamToken( "account_data_key", "push_rules_key", "to_device_key", + "device_list_key", )) ): _SEPARATOR = "_" @@ -195,6 +196,7 @@ class StreamToken( or (int(other.account_data_key) < int(self.account_data_key)) or (int(other.push_rules_key) < int(self.push_rules_key)) or (int(other.to_device_key) < int(self.to_device_key)) + or (int(other.device_list_key) < int(self.device_list_key)) ) def copy_and_advance(self, key, new_value): diff --git a/tests/handlers/test_typing.py b/tests/handlers/test_typing.py index c718d1f98f..f88d2be7c5 100644 --- a/tests/handlers/test_typing.py +++ b/tests/handlers/test_typing.py @@ -75,6 +75,7 @@ class TypingNotificationsTestCase(unittest.TestCase): "get_received_txn_response", "set_received_txn_response", "get_destination_retry_timings", + "get_devices_by_remote", ]), state_handler=self.state_handler, handlers=None, @@ -99,6 +100,8 @@ class TypingNotificationsTestCase(unittest.TestCase): defer.succeed(retry_timings_res) ) + self.datastore.get_devices_by_remote.return_value = (0, []) + def get_received_txn_response(*args): return defer.succeed(None) self.datastore.get_received_txn_response = get_received_txn_response diff --git a/tests/rest/client/v1/test_rooms.py b/tests/rest/client/v1/test_rooms.py index 6bce352c5f..d746ea8568 100644 --- a/tests/rest/client/v1/test_rooms.py +++ b/tests/rest/client/v1/test_rooms.py @@ -1032,7 +1032,7 @@ class RoomMessageListTestCase(RestTestCase): @defer.inlineCallbacks def test_topo_token_is_accepted(self): - token = "t1-0_0_0_0_0_0_0" + token = "t1-0_0_0_0_0_0_0_0" (code, response) = yield self.mock_resource.trigger_get( "/rooms/%s/messages?access_token=x&from=%s" % (self.room_id, token)) @@ -1044,7 +1044,7 @@ class RoomMessageListTestCase(RestTestCase): @defer.inlineCallbacks def test_stream_token_is_accepted_for_fwd_pagianation(self): - token = "s0_0_0_0_0_0_0" + token = "s0_0_0_0_0_0_0_0" (code, response) = yield self.mock_resource.trigger_get( "/rooms/%s/messages?access_token=x&from=%s" % (self.room_id, token))