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# -*- coding: utf-8 -*-
# Copyright 2014, 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 ._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.
}]
}
"""
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_hanlder
@defer.inlineCallbacks
def on_GET(self, request):
user = yield self.auth.get_user_by_req(request)
timeout = self.parse_integer(request, "timeout", default=0)
limit = self.parse_integer(request, "limit", default=None)
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=True)
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.
# filter = self.filters.load_fitler(filter_id_str)
# filter = filter.apply_overrides(http_request)
# if filter.matches(event):
# # stuff
# if timeout != 0:
# register for updates from the event stream
#rooms = []
if gap:
pass
# now_stream_token = get_current_stream_token
# for room_id in get_rooms_for_user(user, filter=filter):
# state, events, start, end, limited, published = updates_for_room(
# from=since, to=now_stream_token, limit=limit,
# anchor_to_start=False
# )
# rooms[room_id] = (state, events, start, limited, published)
# next_stream_token = now.
else:
pass
# now_stream_token = get_current_stream_token
# for room_id in get_rooms_for_user(user, filter=filter)
# state, events, start, end, limited, published = updates_for_room(
# from=since, to=now_stream_token, limit=limit,
# anchor_to_start=False
# )
# next_stream_token = min(next_stream_token, end)
response_content = {}
defer.returnValue((200, response_content))
def register_servlets(hs, http_server):
SyncRestServlet(hs).register(http_server)
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