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
|
# -*- coding: utf-8 -*-
# Copyright 2015, 2016 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.
import logging
from typing import List, Tuple
from synapse.appservice import ApplicationService
from synapse.handlers._base import BaseHandler
from synapse.types import JsonDict, ReadReceipt, get_domain_from_id
from synapse.util.async_helpers import maybe_awaitable
logger = logging.getLogger(__name__)
class ReceiptsHandler(BaseHandler):
def __init__(self, hs):
super().__init__(hs)
self.server_name = hs.config.server_name
self.store = hs.get_datastore()
self.hs = hs
self.federation = hs.get_federation_sender()
hs.get_federation_registry().register_edu_handler(
"m.receipt", self._received_remote_receipt
)
self.clock = self.hs.get_clock()
self.state = hs.get_state_handler()
async def _received_remote_receipt(self, origin, content):
"""Called when we receive an EDU of type m.receipt from a remote HS.
"""
receipts = []
for room_id, room_values in content.items():
for receipt_type, users in room_values.items():
for user_id, user_values in users.items():
if get_domain_from_id(user_id) != origin:
logger.info(
"Received receipt for user %r from server %s, ignoring",
user_id,
origin,
)
continue
receipts.append(
ReadReceipt(
room_id=room_id,
receipt_type=receipt_type,
user_id=user_id,
event_ids=user_values["event_ids"],
data=user_values.get("data", {}),
)
)
await self._handle_new_receipts(receipts)
async def _handle_new_receipts(self, receipts):
"""Takes a list of receipts, stores them and informs the notifier.
"""
min_batch_id = None
max_batch_id = None
for receipt in receipts:
res = await self.store.insert_receipt(
receipt.room_id,
receipt.receipt_type,
receipt.user_id,
receipt.event_ids,
receipt.data,
)
if not res:
# res will be None if this read receipt is 'old'
continue
stream_id, max_persisted_id = res
if min_batch_id is None or stream_id < min_batch_id:
min_batch_id = stream_id
if max_batch_id is None or max_persisted_id > max_batch_id:
max_batch_id = max_persisted_id
if min_batch_id is None:
# no new receipts
return False
affected_room_ids = list({r.room_id for r in receipts})
self.notifier.on_new_event("receipt_key", max_batch_id, rooms=affected_room_ids)
# Note that the min here shouldn't be relied upon to be accurate.
await maybe_awaitable(
self.hs.get_pusherpool().on_new_receipts(
min_batch_id, max_batch_id, affected_room_ids
)
)
return True
async def received_client_receipt(self, room_id, receipt_type, user_id, event_id):
"""Called when a client tells us a local user has read up to the given
event_id in the room.
"""
receipt = ReadReceipt(
room_id=room_id,
receipt_type=receipt_type,
user_id=user_id,
event_ids=[event_id],
data={"ts": int(self.clock.time_msec())},
)
is_new = await self._handle_new_receipts([receipt])
if not is_new:
return
await self.federation.send_read_receipt(receipt)
class ReceiptEventSource:
def __init__(self, hs):
self.store = hs.get_datastore()
async def get_new_events(self, from_key, room_ids, **kwargs):
from_key = int(from_key)
to_key = self.get_current_key()
if from_key == to_key:
return [], to_key
events = await self.store.get_linearized_receipts_for_rooms(
room_ids, from_key=from_key, to_key=to_key
)
return (events, to_key)
async def get_new_events_as(
self, from_key: int, service: ApplicationService
) -> Tuple[List[JsonDict], int]:
"""Returns a set of new receipt events that an appservice
may be interested in.
Args:
from_key: the stream position at which events should be fetched from
service: The appservice which may be interested
"""
from_key = int(from_key)
to_key = self.get_current_key()
if from_key == to_key:
return [], to_key
# We first need to fetch all new receipts
rooms_to_events = await self.store.get_linearized_receipts_for_all_rooms(
from_key=from_key, to_key=to_key
)
# Then filter down to rooms that the AS can read
events = []
for room_id, event in rooms_to_events.items():
if not await service.matches_user_in_member_list(room_id, self.store):
continue
events.append(event)
return (events, to_key)
def get_current_key(self, direction="f"):
return self.store.get_max_receipt_stream_id()
|
