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
209
210
211
212
213
214
215
216
217
218
219
220
|
# -*- coding: utf-8 -*-
# Copyright 2014 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 ._base import BaseHandler
from synapse.api.errors import SynapseError, AuthError
import logging
from collections import namedtuple
logger = logging.getLogger(__name__)
# A tiny object useful for storing a user's membership in a room, as a mapping
# key
RoomMember = namedtuple("RoomMember", ("room_id", "user"))
class TypingNotificationHandler(BaseHandler):
def __init__(self, hs):
super(TypingNotificationHandler, self).__init__(hs)
self.homeserver = hs
self.clock = hs.get_clock()
self.federation = hs.get_replication_layer()
self.federation.register_edu_handler("m.typing", self._recv_edu)
self._member_typing_until = {} # clock time we expect to stop
self._member_typing_timer = {} # deferreds to manage theabove
# map room IDs to serial numbers
self._room_serials = {}
self._latest_room_serial = 0
# map room IDs to sets of users currently typing
self._room_typing = {}
@defer.inlineCallbacks
def started_typing(self, target_user, auth_user, room_id, timeout):
if not target_user.is_mine:
raise SynapseError(400, "User is not hosted on this Home Server")
if target_user != auth_user:
raise AuthError(400, "Cannot set another user's typing state")
until = self.clock.time_msec() + timeout
member = RoomMember(room_id=room_id, user=target_user)
was_present = member in self._member_typing_until
if member in self._member_typing_timer:
self.clock.cancel_call_later(self._member_typing_timer[member])
self._member_typing_until[member] = until
self._member_typing_timer[member] = self.clock.call_later(
timeout / 1000, lambda: self._stopped_typing(member)
)
if was_present:
# No point sending another notification
defer.returnValue(None)
yield self._push_update(
room_id=room_id,
user=target_user,
typing=True,
)
@defer.inlineCallbacks
def stopped_typing(self, target_user, auth_user, room_id):
if not target_user.is_mine:
raise SynapseError(400, "User is not hosted on this Home Server")
if target_user != auth_user:
raise AuthError(400, "Cannot set another user's typing state")
member = RoomMember(room_id=room_id, user=target_user)
yield self._stopped_typing(member)
@defer.inlineCallbacks
def _stopped_typing(self, member):
if member not in self._member_typing_until:
# No point
defer.returnValue(None)
yield self._push_update(
room_id=member.room_id,
user=member.user,
typing=False,
)
del self._member_typing_until[member]
self.clock.cancel_call_later(self._member_typing_timer[member])
del self._member_typing_timer[member]
@defer.inlineCallbacks
def _push_update(self, room_id, user, typing):
localusers = set()
remotedomains = set()
rm_handler = self.homeserver.get_handlers().room_member_handler
yield rm_handler.fetch_room_distributions_into(
room_id, localusers=localusers, remotedomains=remotedomains,
ignore_user=user
)
if localusers:
self._push_update_local(
room_id=room_id,
user=user,
typing=typing
)
deferreds = []
for domain in remotedomains:
deferreds.append(self.federation.send_edu(
destination=domain,
edu_type="m.typing",
content={
"room_id": room_id,
"user_id": user.to_string(),
"typing": typing,
},
))
yield defer.DeferredList(deferreds, consumeErrors=False)
@defer.inlineCallbacks
def _recv_edu(self, origin, content):
room_id = content["room_id"]
user = self.homeserver.parse_userid(content["user_id"])
localusers = set()
rm_handler = self.homeserver.get_handlers().room_member_handler
yield rm_handler.fetch_room_distributions_into(
room_id, localusers=localusers
)
if localusers:
self._push_update_local(
room_id=room_id,
user=user,
typing=content["typing"]
)
def _push_update_local(self, room_id, user, typing):
if room_id not in self._room_serials:
self._room_serials[room_id] = 0
self._room_typing[room_id] = set()
room_set = self._room_typing[room_id]
if typing:
room_set.add(user)
elif user in room_set:
room_set.remove(user)
self._latest_room_serial += 1
self._room_serials[room_id] = self._latest_room_serial
self.notifier.on_new_user_event(rooms=[room_id])
class TypingNotificationEventSource(object):
def __init__(self, hs):
self.hs = hs
self._handler = None
def handler(self):
# Avoid cyclic dependency in handler setup
if not self._handler:
self._handler = self.hs.get_handlers().typing_notification_handler
return self._handler
def _make_event_for(self, room_id):
typing = self.handler()._room_typing[room_id]
return {
"type": "m.typing",
"room_id": room_id,
"typing": [u.to_string() for u in typing],
}
def get_new_events_for_user(self, user, from_key, limit):
from_key = int(from_key)
handler = self.handler()
events = []
for room_id in handler._room_serials:
if handler._room_serials[room_id] <= from_key:
continue
# TODO: check if user is in room
events.append(self._make_event_for(room_id))
return (events, handler._latest_room_serial)
def get_current_key(self):
return self.handler()._latest_room_serial
def get_pagination_rows(self, user, pagination_config, key):
return ([], pagination_config.from_key)
|
