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# -*- 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.
"""Contains handlers for federation events."""
from ._base import BaseHandler
from twisted.internet import defer
from synapse.util.logcontext import PreserveLoggingContext
import logging
logger = logging.getLogger(__name__)
class ReceiptsHandler(BaseHandler):
def __init__(self, hs):
super(ReceiptsHandler, self).__init__(hs)
self.hs = hs
self.federation = hs.get_replication_layer()
self.federation.register_edu_handler(
"m.receipt", self._received_remote_receipt
)
# self._earliest_cached_serial = 0
# self._rooms_to_latest_serial = {}
@defer.inlineCallbacks
def received_client_receipt(self, room_id, receipt_type, user_id,
event_id):
# 1. Persist.
# 2. Notify local clients
# 3. Notify remote servers
receipt = {
"room_id": room_id,
"receipt_type": receipt_type,
"user_id": user_id,
"event_ids": [event_id],
}
is_new = yield self._handle_new_receipts([receipt])
if is_new:
self._push_remotes([receipt])
@defer.inlineCallbacks
def _received_remote_receipt(self, origin, content):
receipts = [
{
"room_id": room_id,
"receipt_type": receipt_type,
"user_id": user_id,
"event_ids": [event_id],
}
for room_id, room_values in content.items()
for event_id, ev_values in room_values.items()
for receipt_type, users in ev_values.items()
for user_id in users
]
yield self._handle_new_receipts(receipts)
@defer.inlineCallbacks
def _handle_new_receipts(self, receipts):
for receipt in receipts:
room_id = receipt["room_id"]
receipt_type = receipt["receipt_type"]
user_id = receipt["user_id"]
event_ids = receipt["event_ids"]
res = yield self.store.insert_receipt(
room_id, receipt_type, user_id, event_ids,
)
if not res:
# res will be None if this read receipt is 'old'
defer.returnValue(False)
stream_id, max_persisted_id = res
with PreserveLoggingContext():
self.notifier.on_new_event(
"receipt_key", max_persisted_id, rooms=[room_id]
)
defer.returnValue(True)
@defer.inlineCallbacks
def _push_remotes(self, receipts):
# TODO: Some of this stuff should be coallesced.
for receipt in receipts:
room_id = receipt["room_id"]
receipt_type = receipt["receipt_type"]
user_id = receipt["user_id"]
event_ids = receipt["event_ids"]
remotedomains = set()
rm_handler = self.hs.get_handlers().room_member_handler
yield rm_handler.fetch_room_distributions_into(
room_id, localusers=None, remotedomains=remotedomains
)
logger.debug("Sending receipt to: %r", remotedomains)
for domain in remotedomains:
self.federation.send_edu(
destination=domain,
edu_type="m.receipt",
content={
room_id: {
event_id: {
receipt_type: [user_id]
}
for event_id in event_ids
},
},
)
class ReceiptEventSource(object):
def __init__(self, hs):
self.store = hs.get_datastore()
@defer.inlineCallbacks
def get_new_events_for_user(self, user, from_key, limit):
from_key = int(from_key)
to_key = yield self.get_current_key()
rooms = yield self.store.get_rooms_for_user(user.to_string())
rooms = [room.room_id for room in rooms]
content = {}
for room_id in rooms:
result = yield self.store.get_linearized_receipts_for_room(
room_id, from_key, to_key
)
if result:
content[room_id] = result
if not content:
defer.returnValue(([], to_key))
event = {
"type": "m.receipt",
"content": content,
}
defer.returnValue(([event], to_key))
def get_current_key(self, direction='f'):
return self.store.get_max_receipt_stream_id()
@defer.inlineCallbacks
def get_pagination_rows(self, user, config, key):
defer.returnValue(([{}], 0))
|
