220 lines
7.8 KiB
Python
220 lines
7.8 KiB
Python
#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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# Copyright 2015, 2016 OpenMarket Ltd
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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from twisted.internet import defer
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import pusher
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from synapse.util.logcontext import preserve_fn, preserve_context_over_deferred
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from synapse.util.async import run_on_reactor
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import logging
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logger = logging.getLogger(__name__)
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class PusherPool:
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def __init__(self, _hs):
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self.hs = _hs
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self.start_pushers = _hs.config.start_pushers
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self.store = self.hs.get_datastore()
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self.clock = self.hs.get_clock()
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self.pushers = {}
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@defer.inlineCallbacks
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def start(self):
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pushers = yield self.store.get_all_pushers()
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self._start_pushers(pushers)
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@defer.inlineCallbacks
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def add_pusher(self, user_id, access_token, kind, app_id,
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app_display_name, device_display_name, pushkey, lang, data,
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profile_tag=""):
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time_now_msec = self.clock.time_msec()
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# we try to create the pusher just to validate the config: it
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# will then get pulled out of the database,
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# recreated, added and started: this means we have only one
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# code path adding pushers.
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pusher.create_pusher(self.hs, {
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"id": None,
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"user_name": user_id,
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"kind": kind,
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"app_id": app_id,
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"app_display_name": app_display_name,
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"device_display_name": device_display_name,
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"pushkey": pushkey,
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"ts": time_now_msec,
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"lang": lang,
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"data": data,
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"last_stream_ordering": None,
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"last_success": None,
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"failing_since": None
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})
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# create the pusher setting last_stream_ordering to the current maximum
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# stream ordering in event_push_actions, so it will process
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# pushes from this point onwards.
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last_stream_ordering = (
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yield self.store.get_latest_push_action_stream_ordering()
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)
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yield self.store.add_pusher(
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user_id=user_id,
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access_token=access_token,
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kind=kind,
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app_id=app_id,
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app_display_name=app_display_name,
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device_display_name=device_display_name,
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pushkey=pushkey,
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pushkey_ts=time_now_msec,
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lang=lang,
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data=data,
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last_stream_ordering=last_stream_ordering,
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profile_tag=profile_tag,
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)
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yield self._refresh_pusher(app_id, pushkey, user_id)
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@defer.inlineCallbacks
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def remove_pushers_by_app_id_and_pushkey_not_user(self, app_id, pushkey,
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not_user_id):
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to_remove = yield self.store.get_pushers_by_app_id_and_pushkey(
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app_id, pushkey
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)
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for p in to_remove:
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if p['user_name'] != not_user_id:
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logger.info(
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"Removing pusher for app id %s, pushkey %s, user %s",
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app_id, pushkey, p['user_name']
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)
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yield self.remove_pusher(p['app_id'], p['pushkey'], p['user_name'])
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@defer.inlineCallbacks
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def remove_pushers_by_user(self, user_id, except_access_token_id=None):
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all = yield self.store.get_all_pushers()
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logger.info(
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"Removing all pushers for user %s except access tokens id %r",
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user_id, except_access_token_id
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)
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for p in all:
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if p['user_name'] == user_id and p['access_token'] != except_access_token_id:
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logger.info(
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"Removing pusher for app id %s, pushkey %s, user %s",
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p['app_id'], p['pushkey'], p['user_name']
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)
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yield self.remove_pusher(p['app_id'], p['pushkey'], p['user_name'])
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@defer.inlineCallbacks
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def on_new_notifications(self, min_stream_id, max_stream_id):
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yield run_on_reactor()
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try:
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users_affected = yield self.store.get_push_action_users_in_range(
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min_stream_id, max_stream_id
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)
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deferreds = []
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for u in users_affected:
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if u in self.pushers:
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for p in self.pushers[u].values():
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deferreds.append(
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preserve_fn(p.on_new_notifications)(
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min_stream_id, max_stream_id
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)
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)
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yield preserve_context_over_deferred(defer.gatherResults(deferreds))
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except:
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logger.exception("Exception in pusher on_new_notifications")
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@defer.inlineCallbacks
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def on_new_receipts(self, min_stream_id, max_stream_id, affected_room_ids):
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yield run_on_reactor()
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try:
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# Need to subtract 1 from the minimum because the lower bound here
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# is not inclusive
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updated_receipts = yield self.store.get_all_updated_receipts(
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min_stream_id - 1, max_stream_id
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)
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# This returns a tuple, user_id is at index 3
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users_affected = set([r[3] for r in updated_receipts])
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deferreds = []
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for u in users_affected:
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if u in self.pushers:
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for p in self.pushers[u].values():
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deferreds.append(
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preserve_fn(p.on_new_receipts)(min_stream_id, max_stream_id)
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)
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yield preserve_context_over_deferred(defer.gatherResults(deferreds))
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except:
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logger.exception("Exception in pusher on_new_receipts")
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@defer.inlineCallbacks
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def _refresh_pusher(self, app_id, pushkey, user_id):
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resultlist = yield self.store.get_pushers_by_app_id_and_pushkey(
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app_id, pushkey
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)
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p = None
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for r in resultlist:
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if r['user_name'] == user_id:
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p = r
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if p:
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self._start_pushers([p])
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def _start_pushers(self, pushers):
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if not self.start_pushers:
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logger.info("Not starting pushers because they are disabled in the config")
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return
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logger.info("Starting %d pushers", len(pushers))
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for pusherdict in pushers:
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try:
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p = pusher.create_pusher(self.hs, pusherdict)
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except:
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logger.exception("Couldn't start a pusher: caught Exception")
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continue
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if p:
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appid_pushkey = "%s:%s" % (
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pusherdict['app_id'],
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pusherdict['pushkey'],
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)
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byuser = self.pushers.setdefault(pusherdict['user_name'], {})
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if appid_pushkey in byuser:
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byuser[appid_pushkey].on_stop()
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byuser[appid_pushkey] = p
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preserve_fn(p.on_started)()
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logger.info("Started pushers")
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@defer.inlineCallbacks
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def remove_pusher(self, app_id, pushkey, user_id):
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appid_pushkey = "%s:%s" % (app_id, pushkey)
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byuser = self.pushers.get(user_id, {})
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if appid_pushkey in byuser:
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logger.info("Stopping pusher %s / %s", user_id, appid_pushkey)
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byuser[appid_pushkey].on_stop()
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del byuser[appid_pushkey]
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yield self.store.delete_pusher_by_app_id_pushkey_user_id(
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app_id, pushkey, user_id
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)
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