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
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
|
# -*- coding: utf-8 -*-
# Copyright 2018 New Vector 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 twisted.internet import defer
from synapse.events import event_type_from_format_version
from synapse.events.snapshot import EventContext
from synapse.http.servlet import parse_json_object_from_request
from synapse.replication.http._base import ReplicationEndpoint
from synapse.util.metrics import Measure
logger = logging.getLogger(__name__)
class ReplicationFederationSendEventsRestServlet(ReplicationEndpoint):
"""Handles events newly received from federation, including persisting and
notifying.
The API looks like:
POST /_synapse/replication/fed_send_events/:txn_id
{
"events": [{
"event": { .. serialized event .. },
"internal_metadata": { .. serialized internal_metadata .. },
"rejected_reason": .., // The event.rejected_reason field
"context": { .. serialized event context .. },
}],
"backfilled": false
"""
NAME = "fed_send_events"
PATH_ARGS = ()
def __init__(self, hs):
super(ReplicationFederationSendEventsRestServlet, self).__init__(hs)
self.store = hs.get_datastore()
self.clock = hs.get_clock()
self.federation_handler = hs.get_handlers().federation_handler
@staticmethod
@defer.inlineCallbacks
def _serialize_payload(store, event_and_contexts, backfilled):
"""
Args:
store
event_and_contexts (list[tuple[FrozenEvent, EventContext]])
backfilled (bool): Whether or not the events are the result of
backfilling
"""
event_payloads = []
for event, context in event_and_contexts:
serialized_context = yield context.serialize(event, store)
event_payloads.append(
{
"event": event.get_pdu_json(),
"event_format_version": event.format_version,
"internal_metadata": event.internal_metadata.get_dict(),
"rejected_reason": event.rejected_reason,
"context": serialized_context,
}
)
payload = {"events": event_payloads, "backfilled": backfilled}
return payload
@defer.inlineCallbacks
def _handle_request(self, request):
with Measure(self.clock, "repl_fed_send_events_parse"):
content = parse_json_object_from_request(request)
backfilled = content["backfilled"]
event_payloads = content["events"]
event_and_contexts = []
for event_payload in event_payloads:
event_dict = event_payload["event"]
format_ver = event_payload["event_format_version"]
internal_metadata = event_payload["internal_metadata"]
rejected_reason = event_payload["rejected_reason"]
EventType = event_type_from_format_version(format_ver)
event = EventType(event_dict, internal_metadata, rejected_reason)
context = yield EventContext.deserialize(
self.store, event_payload["context"]
)
event_and_contexts.append((event, context))
logger.info("Got %d events from federation", len(event_and_contexts))
yield self.federation_handler.persist_events_and_notify(
event_and_contexts, backfilled
)
return (200, {})
class ReplicationFederationSendEduRestServlet(ReplicationEndpoint):
"""Handles EDUs newly received from federation, including persisting and
notifying.
Request format:
POST /_synapse/replication/fed_send_edu/:edu_type/:txn_id
{
"origin": ...,
"content: { ... }
}
"""
NAME = "fed_send_edu"
PATH_ARGS = ("edu_type",)
def __init__(self, hs):
super(ReplicationFederationSendEduRestServlet, self).__init__(hs)
self.store = hs.get_datastore()
self.clock = hs.get_clock()
self.registry = hs.get_federation_registry()
@staticmethod
def _serialize_payload(edu_type, origin, content):
return {"origin": origin, "content": content}
@defer.inlineCallbacks
def _handle_request(self, request, edu_type):
with Measure(self.clock, "repl_fed_send_edu_parse"):
content = parse_json_object_from_request(request)
origin = content["origin"]
edu_content = content["content"]
logger.info("Got %r edu from %s", edu_type, origin)
result = yield self.registry.on_edu(edu_type, origin, edu_content)
return (200, result)
class ReplicationGetQueryRestServlet(ReplicationEndpoint):
"""Handle responding to queries from federation.
Request format:
POST /_synapse/replication/fed_query/:query_type
{
"args": { ... }
}
"""
NAME = "fed_query"
PATH_ARGS = ("query_type",)
# This is a query, so let's not bother caching
CACHE = False
def __init__(self, hs):
super(ReplicationGetQueryRestServlet, self).__init__(hs)
self.store = hs.get_datastore()
self.clock = hs.get_clock()
self.registry = hs.get_federation_registry()
@staticmethod
def _serialize_payload(query_type, args):
"""
Args:
query_type (str)
args (dict): The arguments received for the given query type
"""
return {"args": args}
@defer.inlineCallbacks
def _handle_request(self, request, query_type):
with Measure(self.clock, "repl_fed_query_parse"):
content = parse_json_object_from_request(request)
args = content["args"]
logger.info("Got %r query", query_type)
result = yield self.registry.on_query(query_type, args)
return (200, result)
class ReplicationCleanRoomRestServlet(ReplicationEndpoint):
"""Called to clean up any data in DB for a given room, ready for the
server to join the room.
Request format:
POST /_synapse/replication/fed_query/:fed_cleanup_room/:txn_id
{}
"""
NAME = "fed_cleanup_room"
PATH_ARGS = ("room_id",)
def __init__(self, hs):
super(ReplicationCleanRoomRestServlet, self).__init__(hs)
self.store = hs.get_datastore()
@staticmethod
def _serialize_payload(room_id, args):
"""
Args:
room_id (str)
"""
return {}
@defer.inlineCallbacks
def _handle_request(self, request, room_id):
yield self.store.clean_room_for_join(room_id)
return (200, {})
def register_servlets(hs, http_server):
ReplicationFederationSendEventsRestServlet(hs).register(http_server)
ReplicationFederationSendEduRestServlet(hs).register(http_server)
ReplicationGetQueryRestServlet(hs).register(http_server)
ReplicationCleanRoomRestServlet(hs).register(http_server)
|
