diff options
Diffstat (limited to 'synapse/rest/client/v2_alpha/sync.py')
| -rw-r--r-- | synapse/rest/client/v2_alpha/sync.py | 207 |
1 files changed, 207 insertions, 0 deletions
diff --git a/synapse/rest/client/v2_alpha/sync.py b/synapse/rest/client/v2_alpha/sync.py new file mode 100644 index 0000000000..81d5cf8ead --- /dev/null +++ b/synapse/rest/client/v2_alpha/sync.py @@ -0,0 +1,207 @@ +# -*- coding: utf-8 -*- +# Copyright 2015 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. + +from twisted.internet import defer + +from synapse.http.servlet import RestServlet +from synapse.handlers.sync import SyncConfig +from synapse.types import StreamToken +from synapse.events.utils import ( + serialize_event, format_event_for_client_v2_without_event_id, +) +from synapse.api.filtering import Filter +from ._base import client_v2_pattern + +import logging + +logger = logging.getLogger(__name__) + + +class SyncRestServlet(RestServlet): + """ + + GET parameters:: + timeout(int): How long to wait for new events in milliseconds. + limit(int): Maxiumum number of events per room to return. + gap(bool): Create gaps the message history if limit is exceeded to + ensure that the client has the most recent messages. Defaults to + "true". + sort(str,str): tuple of sort key (e.g. "timeline") and direction + (e.g. "asc", "desc"). Defaults to "timeline,asc". + since(batch_token): Batch token when asking for incremental deltas. + set_presence(str): What state the device presence should be set to. + default is "online". + backfill(bool): Should the HS request message history from other + servers. This may take a long time making it unsuitable for clients + expecting a prompt response. Defaults to "true". + filter(filter_id): A filter to apply to the events returned. + filter_*: Filter override parameters. + + Response JSON:: + { + "next_batch": // batch token for the next /sync + "private_user_data": // private events for this user. + "public_user_data": // public events for all users including the + // public events for this user. + "rooms": [{ // List of rooms with updates. + "room_id": // Id of the room being updated + "limited": // Was the per-room event limit exceeded? + "published": // Is the room published by our HS? + "event_map": // Map of EventID -> event JSON. + "events": { // The recent events in the room if gap is "true" + // otherwise the next events in the room. + "batch": [] // list of EventIDs in the "event_map". + "prev_batch": // back token for getting previous events. + } + "state": [] // list of EventIDs updating the current state to + // be what it should be at the end of the batch. + "ephemeral": [] + }] + } + """ + + PATTERN = client_v2_pattern("/sync$") + ALLOWED_SORT = set(["timeline,asc", "timeline,desc"]) + ALLOWED_PRESENCE = set(["online", "offline", "idle"]) + + def __init__(self, hs): + super(SyncRestServlet, self).__init__() + self.auth = hs.get_auth() + self.sync_handler = hs.get_handlers().sync_handler + self.clock = hs.get_clock() + self.filtering = hs.get_filtering() + + @defer.inlineCallbacks + def on_GET(self, request): + user, client = yield self.auth.get_user_by_req(request) + + timeout = self.parse_integer(request, "timeout", default=0) + limit = self.parse_integer(request, "limit", required=True) + gap = self.parse_boolean(request, "gap", default=True) + sort = self.parse_string( + request, "sort", default="timeline,asc", + allowed_values=self.ALLOWED_SORT + ) + since = self.parse_string(request, "since") + set_presence = self.parse_string( + request, "set_presence", default="online", + allowed_values=self.ALLOWED_PRESENCE + ) + backfill = self.parse_boolean(request, "backfill", default=False) + filter_id = self.parse_string(request, "filter", default=None) + + logger.info( + "/sync: user=%r, timeout=%r, limit=%r, gap=%r, sort=%r, since=%r," + " set_presence=%r, backfill=%r, filter_id=%r" % ( + user, timeout, limit, gap, sort, since, set_presence, + backfill, filter_id + ) + ) + + # TODO(mjark): Load filter and apply overrides. + try: + filter = yield self.filtering.get_user_filter( + user.localpart, filter_id + ) + except: + filter = Filter({}) + # filter = filter.apply_overrides(http_request) + #if filter.matches(event): + # # stuff + + sync_config = SyncConfig( + user=user, + client_info=client, + gap=gap, + limit=limit, + sort=sort, + backfill=backfill, + filter=filter, + ) + + if since is not None: + since_token = StreamToken.from_string(since) + else: + since_token = None + + sync_result = yield self.sync_handler.wait_for_sync_for_user( + sync_config, since_token=since_token, timeout=timeout + ) + + time_now = self.clock.time_msec() + + response_content = { + "public_user_data": self.encode_user_data( + sync_result.public_user_data, filter, time_now + ), + "private_user_data": self.encode_user_data( + sync_result.private_user_data, filter, time_now + ), + "rooms": self.encode_rooms( + sync_result.rooms, filter, time_now, client.token_id + ), + "next_batch": sync_result.next_batch.to_string(), + } + + defer.returnValue((200, response_content)) + + def encode_user_data(self, events, filter, time_now): + return events + + def encode_rooms(self, rooms, filter, time_now, token_id): + return [ + self.encode_room(room, filter, time_now, token_id) + for room in rooms + ] + + @staticmethod + def encode_room(room, filter, time_now, token_id): + event_map = {} + state_events = filter.filter_room_state(room.state) + recent_events = filter.filter_room_events(room.events) + state_event_ids = [] + recent_event_ids = [] + for event in state_events: + # TODO(mjark): Respect formatting requirements in the filter. + event_map[event.event_id] = serialize_event( + event, time_now, token_id=token_id, + event_format=format_event_for_client_v2_without_event_id, + ) + state_event_ids.append(event.event_id) + + for event in recent_events: + # TODO(mjark): Respect formatting requirements in the filter. + event_map[event.event_id] = serialize_event( + event, time_now, token_id=token_id, + event_format=format_event_for_client_v2_without_event_id, + ) + recent_event_ids.append(event.event_id) + result = { + "room_id": room.room_id, + "event_map": event_map, + "events": { + "batch": recent_event_ids, + "prev_batch": room.prev_batch.to_string(), + }, + "state": state_event_ids, + "limited": room.limited, + "published": room.published, + "ephemeral": room.ephemeral, + } + return result + + +def register_servlets(hs, http_server): + SyncRestServlet(hs).register(http_server) |