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#!/usr/bin/env python
# -*- 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.
from twisted.internet import defer
from .httppusher import HttpPusher
from synapse.push import PusherConfigException
from synapse.util.logcontext import preserve_fn
import logging
logger = logging.getLogger(__name__)
class PusherPool:
def __init__(self, _hs):
self.hs = _hs
self.store = self.hs.get_datastore()
self.clock = self.hs.get_clock()
self.pushers = {}
self.last_pusher_started = -1
@defer.inlineCallbacks
def start(self):
pushers = yield self.store.get_all_pushers()
self._start_pushers(pushers)
@defer.inlineCallbacks
def add_pusher(self, user_id, access_token, kind, app_id,
app_display_name, device_display_name, pushkey, lang, data,
profile_tag=""):
time_now_msec = self.clock.time_msec()
# we try to create the pusher just to validate the config: it
# will then get pulled out of the database,
# recreated, added and started: this means we have only one
# code path adding pushers.
self._create_pusher({
"user_name": user_id,
"kind": kind,
"app_id": app_id,
"app_display_name": app_display_name,
"device_display_name": device_display_name,
"pushkey": pushkey,
"ts": time_now_msec,
"lang": lang,
"data": data,
"last_token": None,
"last_success": None,
"failing_since": None
})
yield self.store.add_pusher(
user_id=user_id,
access_token=access_token,
kind=kind,
app_id=app_id,
app_display_name=app_display_name,
device_display_name=device_display_name,
pushkey=pushkey,
pushkey_ts=time_now_msec,
lang=lang,
data=data,
profile_tag=profile_tag,
)
yield self._refresh_pusher(app_id, pushkey, user_id)
@defer.inlineCallbacks
def remove_pushers_by_app_id_and_pushkey_not_user(self, app_id, pushkey,
not_user_id):
to_remove = yield self.store.get_pushers_by_app_id_and_pushkey(
app_id, pushkey
)
for p in to_remove:
if p['user_name'] != not_user_id:
logger.info(
"Removing pusher for app id %s, pushkey %s, user %s",
app_id, pushkey, p['user_name']
)
yield self.remove_pusher(p['app_id'], p['pushkey'], p['user_name'])
@defer.inlineCallbacks
def remove_pushers_by_user(self, user_id, except_token_ids=[]):
all = yield self.store.get_all_pushers()
logger.info(
"Removing all pushers for user %s except access tokens ids %r",
user_id, except_token_ids
)
for p in all:
if p['user_name'] == user_id and p['access_token'] not in except_token_ids:
logger.info(
"Removing pusher for app id %s, pushkey %s, user %s",
p['app_id'], p['pushkey'], p['user_name']
)
yield self.remove_pusher(p['app_id'], p['pushkey'], p['user_name'])
def _create_pusher(self, pusherdict):
if pusherdict['kind'] == 'http':
return HttpPusher(
self.hs,
user_id=pusherdict['user_name'],
app_id=pusherdict['app_id'],
app_display_name=pusherdict['app_display_name'],
device_display_name=pusherdict['device_display_name'],
pushkey=pusherdict['pushkey'],
pushkey_ts=pusherdict['ts'],
data=pusherdict['data'],
last_token=pusherdict['last_token'],
last_success=pusherdict['last_success'],
failing_since=pusherdict['failing_since']
)
else:
raise PusherConfigException(
"Unknown pusher type '%s' for user %s" %
(pusherdict['kind'], pusherdict['user_name'])
)
@defer.inlineCallbacks
def _refresh_pusher(self, app_id, pushkey, user_id):
resultlist = yield self.store.get_pushers_by_app_id_and_pushkey(
app_id, pushkey
)
p = None
for r in resultlist:
if r['user_name'] == user_id:
p = r
if p:
self._start_pushers([p])
def _start_pushers(self, pushers):
logger.info("Starting %d pushers", len(pushers))
for pusherdict in pushers:
try:
p = self._create_pusher(pusherdict)
except PusherConfigException:
logger.exception("Couldn't start a pusher: caught PusherConfigException")
continue
if p:
fullid = "%s:%s:%s" % (
pusherdict['app_id'],
pusherdict['pushkey'],
pusherdict['user_name']
)
if fullid in self.pushers:
self.pushers[fullid].stop()
self.pushers[fullid] = p
preserve_fn(p.start)()
logger.info("Started pushers")
@defer.inlineCallbacks
def remove_pusher(self, app_id, pushkey, user_id):
fullid = "%s:%s:%s" % (app_id, pushkey, user_id)
if fullid in self.pushers:
logger.info("Stopping pusher %s", fullid)
self.pushers[fullid].stop()
del self.pushers[fullid]
yield self.store.delete_pusher_by_app_id_pushkey_user_id(
app_id, pushkey, user_id
)
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