155 lines
5.4 KiB
Python
155 lines
5.4 KiB
Python
#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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# Copyright 2015 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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from httppusher import HttpPusher
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from synapse.push import PusherConfigException
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from syutil.jsonutil import encode_canonical_json
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import logging
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import simplejson as json
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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.store = self.hs.get_datastore()
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self.pushers = {}
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self.last_pusher_started = -1
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distributor = self.hs.get_distributor()
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distributor.observe(
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"user_presence_changed", self.user_presence_changed
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)
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@defer.inlineCallbacks
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def user_presence_changed(self, user, state):
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user_name = user.to_string()
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# until we have read receipts, pushers use this to reset a user's
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# badge counters to zero
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for p in self.pushers.values():
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if p.user_name == user_name:
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yield p.presence_changed(state)
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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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for p in pushers:
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p['data'] = json.loads(p['data'])
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self._start_pushers(pushers)
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@defer.inlineCallbacks
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def add_pusher(self, user_name, profile_tag, kind, app_id,
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app_display_name, device_display_name, pushkey, lang, data):
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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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self._create_pusher({
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"user_name": user_name,
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"kind": kind,
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"profile_tag": profile_tag,
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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": self.hs.get_clock().time_msec(),
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"lang": lang,
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"data": data,
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"last_token": None,
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"last_success": None,
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"failing_since": None
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})
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yield self._add_pusher_to_store(
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user_name, profile_tag, kind, app_id,
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app_display_name, device_display_name,
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pushkey, lang, data
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)
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@defer.inlineCallbacks
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def _add_pusher_to_store(self, user_name, profile_tag, kind, app_id,
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app_display_name, device_display_name,
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pushkey, lang, data):
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yield self.store.add_pusher(
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user_name=user_name,
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profile_tag=profile_tag,
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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=self.hs.get_clock().time_msec(),
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lang=lang,
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data=encode_canonical_json(data).decode("UTF-8"),
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)
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self._refresh_pusher((app_id, pushkey))
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def _create_pusher(self, pusherdict):
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if pusherdict['kind'] == 'http':
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return HttpPusher(
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self.hs,
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profile_tag=pusherdict['profile_tag'],
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user_name=pusherdict['user_name'],
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app_id=pusherdict['app_id'],
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app_display_name=pusherdict['app_display_name'],
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device_display_name=pusherdict['device_display_name'],
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pushkey=pusherdict['pushkey'],
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pushkey_ts=pusherdict['pushkey_ts'],
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data=pusherdict['data'],
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last_token=pusherdict['last_token'],
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last_success=pusherdict['last_success'],
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failing_since=pusherdict['failing_since']
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)
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else:
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raise PusherConfigException(
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"Unknown pusher type '%s' for user %s" %
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(pusherdict['kind'], pusherdict['user_name'])
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)
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@defer.inlineCallbacks
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def _refresh_pusher(self, app_id_pushkey):
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p = 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['data'] = json.loads(p['data'])
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self._start_pushers([p])
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def _start_pushers(self, pushers):
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logger.info("Starting %d pushers", len(pushers))
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for pusherdict in pushers:
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p = self._create_pusher(pusherdict)
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if p:
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fullid = "%s:%s" % (pusherdict['app_id'], pusherdict['pushkey'])
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if fullid in self.pushers:
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self.pushers[fullid].stop()
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self.pushers[fullid] = p
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p.start()
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@defer.inlineCallbacks
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def remove_pusher(self, app_id, pushkey):
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fullid = "%s:%s" % (app_id, pushkey)
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if fullid in self.pushers:
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logger.info("Stopping pusher %s", fullid)
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self.pushers[fullid].stop()
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del self.pushers[fullid]
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yield self.store.delete_pusher_by_app_id_pushkey(app_id, pushkey)
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