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-rw-r--r--synapse/push/pusherpool.py94
1 files changed, 94 insertions, 0 deletions
diff --git a/synapse/push/pusherpool.py b/synapse/push/pusherpool.py
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+++ b/synapse/push/pusherpool.py
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+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+# Copyright 2014 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
+
+import logging
+import json
+
+logger = logging.getLogger(__name__)
+
+class PusherPool:
+    def __init__(self, _hs):
+        self.hs = _hs
+        self.store = self.hs.get_datastore()
+        self.pushers = []
+        self.last_pusher_started = -1
+
+    def start(self):
+        self._pushers_added()
+
+    def add_pusher(self, user_name, kind, app, app_display_name, device_display_name, pushkey, data):
+        # 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_name,
+            "kind": kind,
+            "app": app,
+            "app_display_name": app_display_name,
+            "device_display_name": device_display_name,
+            "pushkey": pushkey,
+            "data": data,
+            "last_token": None
+        })
+        self._add_pusher_to_store(user_name, kind, app, app_display_name, device_display_name, pushkey, data)
+
+    @defer.inlineCallbacks
+    def _add_pusher_to_store(self, user_name, kind, app, app_display_name, device_display_name, pushkey, data):
+        yield self.store.add_pusher(user_name=user_name,
+                                 kind=kind,
+                                 app=app,
+                                 app_display_name=app_display_name,
+                                 device_display_name=device_display_name,
+                                 pushkey=pushkey,
+                                 data=json.dumps(data))
+        self._pushers_added()
+
+    def _create_pusher(self, pusherdict):
+        if pusherdict['kind'] == 'http':
+            return HttpPusher(self.hs,
+                               user_name=pusherdict['user_name'],
+                               app=pusherdict['app'],
+                               app_display_name=pusherdict['app_display_name'],
+                               device_display_name=pusherdict['device_display_name'],
+                               pushkey=pusherdict['pushkey'],
+                               data=pusherdict['data'],
+                               last_token=pusherdict['last_token']
+                               )
+        else:
+            raise PusherConfigException("Unknown pusher type '%s' for user %s" %
+                                        (pusherdict['kind'], pusherdict['user_name']))
+
+    @defer.inlineCallbacks
+    def _pushers_added(self):
+        pushers = yield self.store.get_all_pushers_after_id(self.last_pusher_started)
+        for p in pushers:
+            p['data'] = json.loads(p['data'])
+        if (len(pushers)):
+            self.last_pusher_started = pushers[-1]['id']
+
+        self._start_pushers(pushers)
+
+    def _start_pushers(self, pushers):
+        logger.info("Starting %d pushers", (len(pushers)))
+        for pusherdict in pushers:
+            p = self._create_pusher(pusherdict)
+            if p:
+                self.pushers.append(p)
+                p.start()
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