1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
|
# -*- 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, parse_string, parse_integer, parse_boolean
)
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, token_id = yield self.auth.get_user_by_req(request)
timeout = parse_integer(request, "timeout", default=0)
limit = parse_integer(request, "limit", required=True)
gap = parse_boolean(request, "gap", default=True)
sort = parse_string(
request, "sort", default="timeline,asc",
allowed_values=self.ALLOWED_SORT
)
since = parse_string(request, "since")
set_presence = parse_string(
request, "set_presence", default="online",
allowed_values=self.ALLOWED_PRESENCE
)
backfill = parse_boolean(request, "backfill", default=False)
filter_id = 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,
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, 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)
|
