2015-01-23 18:31:29 +00:00
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# -*- coding: utf-8 -*-
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2015-01-26 18:53:31 +00:00
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# Copyright 2015 OpenMarket Ltd
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2015-01-23 18:31:29 +00:00
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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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from twisted.internet import defer
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2015-04-21 15:35:53 +00:00
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from synapse.http.servlet import (
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RestServlet, parse_string, parse_integer, parse_boolean
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)
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2015-01-26 18:53:31 +00:00
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from synapse.handlers.sync import SyncConfig
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from synapse.types import StreamToken
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2015-01-29 02:45:33 +00:00
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from synapse.events.utils import (
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serialize_event, format_event_for_client_v2_without_event_id,
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)
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2015-10-20 14:33:25 +00:00
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from synapse.api.filtering import FilterCollection
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2015-01-23 18:31:29 +00:00
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from ._base import client_v2_pattern
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2015-10-09 17:50:15 +00:00
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import copy
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2015-01-23 18:31:29 +00:00
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import logging
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logger = logging.getLogger(__name__)
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class SyncRestServlet(RestServlet):
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"""
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GET parameters::
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timeout(int): How long to wait for new events in milliseconds.
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since(batch_token): Batch token when asking for incremental deltas.
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set_presence(str): What state the device presence should be set to.
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default is "online".
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filter(filter_id): A filter to apply to the events returned.
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Response JSON::
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{
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"next_batch": // batch token for the next /sync
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"presence": // presence data for the user.
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"rooms": {
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"joined": { // Joined rooms being updated.
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"${room_id}": { // Id of the room being updated
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"event_map": // Map of EventID -> event JSON.
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"timeline": { // The recent events in the room if gap is "true"
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"limited": // Was the per-room event limit exceeded?
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// otherwise the next events in the room.
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"events": [] // list of EventIDs in the "event_map".
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"prev_batch": // back token for getting previous events.
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}
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"state": {"events": []} // list of EventIDs updating the
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// current state to be what it should
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// be at the end of the batch.
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"ephemeral": {"events": []} // list of event objects
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}
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},
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"invited": {}, // Invited rooms being updated.
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"archived": {} // Archived rooms being updated.
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}
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}
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"""
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PATTERN = client_v2_pattern("/sync$")
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ALLOWED_PRESENCE = set(["online", "offline"])
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def __init__(self, hs):
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super(SyncRestServlet, self).__init__()
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self.auth = hs.get_auth()
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self.event_stream_handler = hs.get_handlers().event_stream_handler
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self.sync_handler = hs.get_handlers().sync_handler
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self.clock = hs.get_clock()
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self.filtering = hs.get_filtering()
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@defer.inlineCallbacks
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def on_GET(self, request):
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user, token_id, _ = yield self.auth.get_user_by_req(request)
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timeout = parse_integer(request, "timeout", default=0)
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since = parse_string(request, "since")
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set_presence = parse_string(
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request, "set_presence", default="online",
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allowed_values=self.ALLOWED_PRESENCE
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)
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filter_id = parse_string(request, "filter", default=None)
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full_state = parse_boolean(request, "full_state", default=False)
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logger.info(
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"/sync: user=%r, timeout=%r, since=%r,"
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" set_presence=%r, filter_id=%r" % (
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user, timeout, since, set_presence, filter_id
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)
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)
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2015-01-29 18:11:28 +00:00
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try:
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filter = yield self.filtering.get_user_filter(
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user.localpart, filter_id
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)
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except:
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filter = FilterCollection({})
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sync_config = SyncConfig(
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user=user,
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filter=filter,
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)
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if since is not None:
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since_token = StreamToken.from_string(since)
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else:
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since_token = None
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if set_presence == "online":
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yield self.event_stream_handler.started_stream(user)
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try:
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sync_result = yield self.sync_handler.wait_for_sync_for_user(
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sync_config, since_token=since_token, timeout=timeout,
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full_state=full_state
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)
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finally:
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if set_presence == "online":
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self.event_stream_handler.stopped_stream(user)
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time_now = self.clock.time_msec()
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2015-10-13 09:24:51 +00:00
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joined = self.encode_joined(
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sync_result.joined, filter, time_now, token_id
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2015-10-05 15:39:22 +00:00
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)
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2015-10-13 10:03:48 +00:00
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invited = self.encode_invited(
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sync_result.invited, filter, time_now, token_id
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)
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2015-10-19 16:26:18 +00:00
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archived = self.encode_archived(
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sync_result.archived, filter, time_now, token_id
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)
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response_content = {
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"presence": self.encode_presence(
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sync_result.presence, filter, time_now
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),
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"rooms": {
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"joined": joined,
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"invited": invited,
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"archived": archived,
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},
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"next_batch": sync_result.next_batch.to_string(),
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}
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defer.returnValue((200, response_content))
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2015-10-09 17:50:15 +00:00
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def encode_presence(self, events, filter, time_now):
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formatted = []
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for event in events:
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event = copy.deepcopy(event)
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event['sender'] = event['content'].pop('user_id')
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formatted.append(event)
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return {"events": filter.filter_presence(formatted)}
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def encode_joined(self, rooms, filter, time_now, token_id):
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"""
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Encode the joined rooms in a sync result
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:param list[synapse.handlers.sync.JoinedSyncResult] rooms: list of sync
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results for rooms this user is joined to
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:param FilterCollection filter: filters to apply to the results
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:param int time_now: current time - used as a baseline for age
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calculations
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:param int token_id: ID of the user's auth token - used for namespacing
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of transaction IDs
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:return: the joined rooms list, in our response format
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:rtype: dict[str, dict[str, object]]
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"""
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joined = {}
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for room in rooms:
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joined[room.room_id] = self.encode_room(
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room, filter, time_now, token_id
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)
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return joined
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def encode_invited(self, rooms, filter, time_now, token_id):
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"""
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Encode the invited rooms in a sync result
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:param list[synapse.handlers.sync.InvitedSyncResult] rooms: list of
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sync results for rooms this user is joined to
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:param FilterCollection filter: filters to apply to the results
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:param int time_now: current time - used as a baseline for age
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calculations
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:param int token_id: ID of the user's auth token - used for namespacing
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of transaction IDs
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:return: the invited rooms list, in our response format
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:rtype: dict[str, dict[str, object]]
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"""
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invited = {}
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for room in rooms:
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invite = serialize_event(
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room.invite, time_now, token_id=token_id,
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event_format=format_event_for_client_v2_without_event_id,
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)
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invited_state = invite.get("unsigned", {}).pop("invite_room_state", [])
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invited_state.append(invite)
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invited[room.room_id] = {
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"invite_state": {"events": invited_state}
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}
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return invited
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2015-10-19 16:26:18 +00:00
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def encode_archived(self, rooms, filter, time_now, token_id):
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"""
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Encode the archived rooms in a sync result
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:param list[synapse.handlers.sync.ArchivedSyncResult] rooms: list of
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sync results for rooms this user is joined to
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:param FilterCollection filter: filters to apply to the results
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:param int time_now: current time - used as a baseline for age
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calculations
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:param int token_id: ID of the user's auth token - used for namespacing
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of transaction IDs
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:return: the invited rooms list, in our response format
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:rtype: dict[str, dict[str, object]]
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"""
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joined = {}
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for room in rooms:
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joined[room.room_id] = self.encode_room(
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room, filter, time_now, token_id, joined=False
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)
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return joined
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@staticmethod
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def encode_room(room, filter, time_now, token_id, joined=True):
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"""
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:param JoinedSyncResult|ArchivedSyncResult room: sync result for a
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single room
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:param FilterCollection filter: filters to apply to the results
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:param int time_now: current time - used as a baseline for age
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calculations
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:param int token_id: ID of the user's auth token - used for namespacing
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of transaction IDs
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:param joined: True if the user is joined to this room - will mean
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we handle ephemeral events
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:return: the room, encoded in our response format
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:rtype: dict[str, object]
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"""
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event_map = {}
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state_events = filter.filter_room_state(room.state.values())
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state_event_ids = []
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for event in state_events:
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# TODO(mjark): Respect formatting requirements in the filter.
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event_map[event.event_id] = serialize_event(
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event, time_now, token_id=token_id,
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event_format=format_event_for_client_v2_without_event_id,
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)
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state_event_ids.append(event.event_id)
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2015-10-19 16:26:18 +00:00
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timeline_events = filter.filter_room_timeline(room.timeline.events)
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timeline_event_ids = []
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for event in timeline_events:
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# TODO(mjark): Respect formatting requirements in the filter.
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event_map[event.event_id] = serialize_event(
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event, time_now, token_id=token_id,
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event_format=format_event_for_client_v2_without_event_id,
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)
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timeline_event_ids.append(event.event_id)
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private_user_data = filter.filter_room_private_user_data(
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room.private_user_data
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)
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2015-01-29 03:33:51 +00:00
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result = {
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"event_map": event_map,
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"timeline": {
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"events": timeline_event_ids,
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"prev_batch": room.timeline.prev_batch.to_string(),
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"limited": room.timeline.limited,
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},
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"state": {"events": state_event_ids},
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"private_user_data": {"events": private_user_data},
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2015-01-26 18:53:31 +00:00
|
|
|
}
|
2015-10-19 16:26:18 +00:00
|
|
|
|
|
|
|
if joined:
|
|
|
|
ephemeral_events = filter.filter_room_ephemeral(room.ephemeral)
|
|
|
|
result["ephemeral"] = {"events": ephemeral_events}
|
|
|
|
|
2015-01-29 03:33:51 +00:00
|
|
|
return result
|
2015-01-26 18:53:31 +00:00
|
|
|
|
2015-01-23 18:31:29 +00:00
|
|
|
|
|
|
|
def register_servlets(hs, http_server):
|
|
|
|
SyncRestServlet(hs).register(http_server)
|