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-rw-r--r--synapse/handlers/events.py5
-rw-r--r--synapse/handlers/presence.py4
-rw-r--r--synapse/rest/client/v2_alpha/sync.py4
-rw-r--r--synapse/server.py7
-rw-r--r--synapse/server_notices/server_notices_sender.py8
-rw-r--r--synapse/server_notices/worker_server_notices_sender.py46
6 files changed, 66 insertions, 8 deletions
diff --git a/synapse/handlers/events.py b/synapse/handlers/events.py
index d3685fb12a..8bc642675f 100644
--- a/synapse/handlers/events.py
+++ b/synapse/handlers/events.py
@@ -48,6 +48,7 @@ class EventStreamHandler(BaseHandler):
 
         self.notifier = hs.get_notifier()
         self.state = hs.get_state_handler()
+        self._server_notices_sender = hs.get_server_notices_sender()
 
     @defer.inlineCallbacks
     @log_function
@@ -58,6 +59,10 @@ class EventStreamHandler(BaseHandler):
 
         If `only_keys` is not None, events from keys will be sent down.
         """
+
+        # send any outstanding server notices to the user.
+        yield self._server_notices_sender.on_user_syncing(auth_user_id)
+
         auth_user = UserID.from_string(auth_user_id)
         presence_handler = self.hs.get_presence_handler()
 
diff --git a/synapse/handlers/presence.py b/synapse/handlers/presence.py
index adc816f747..500a131874 100644
--- a/synapse/handlers/presence.py
+++ b/synapse/handlers/presence.py
@@ -100,7 +100,6 @@ class PresenceHandler(object):
         self.notifier = hs.get_notifier()
         self.federation = hs.get_federation_sender()
         self.state = hs.get_state_handler()
-        self._server_notices_sender = hs.get_server_notices_sender()
 
         federation_registry = hs.get_federation_registry()
 
@@ -433,9 +432,6 @@ class PresenceHandler(object):
                     last_user_sync_ts=self.clock.time_msec(),
                 )])
 
-        # send any outstanding server notices to the user.
-        yield self._server_notices_sender.on_user_syncing(user_id)
-
         @defer.inlineCallbacks
         def _end():
             try:
diff --git a/synapse/rest/client/v2_alpha/sync.py b/synapse/rest/client/v2_alpha/sync.py
index eb91c0b293..a291cffbf1 100644
--- a/synapse/rest/client/v2_alpha/sync.py
+++ b/synapse/rest/client/v2_alpha/sync.py
@@ -85,6 +85,7 @@ class SyncRestServlet(RestServlet):
         self.clock = hs.get_clock()
         self.filtering = hs.get_filtering()
         self.presence_handler = hs.get_presence_handler()
+        self._server_notices_sender = hs.get_server_notices_sender()
 
     @defer.inlineCallbacks
     def on_GET(self, request):
@@ -149,6 +150,9 @@ class SyncRestServlet(RestServlet):
         else:
             since_token = None
 
+        # send any outstanding server notices to the user.
+        yield self._server_notices_sender.on_user_syncing(user.to_string())
+
         affect_presence = set_presence != PresenceState.OFFLINE
 
         if affect_presence:
diff --git a/synapse/server.py b/synapse/server.py
index e7c733f2d4..58dbf78437 100644
--- a/synapse/server.py
+++ b/synapse/server.py
@@ -74,6 +74,9 @@ from synapse.rest.media.v1.media_repository import (
 )
 from synapse.server_notices.server_notices_manager import ServerNoticesManager
 from synapse.server_notices.server_notices_sender import ServerNoticesSender
+from synapse.server_notices.worker_server_notices_sender import (
+    WorkerServerNoticesSender,
+)
 from synapse.state import StateHandler, StateResolutionHandler
 from synapse.storage import DataStore
 from synapse.streams.events import EventSources
@@ -403,9 +406,13 @@ class HomeServer(object):
         return FederationHandlerRegistry()
 
     def build_server_notices_manager(self):
+        if self.config.worker_app:
+            raise Exception("Workers cannot send server notices")
         return ServerNoticesManager(self)
 
     def build_server_notices_sender(self):
+        if self.config.worker_app:
+            return WorkerServerNoticesSender(self)
         return ServerNoticesSender(self)
 
     def remove_pusher(self, app_id, push_key, user_id):
diff --git a/synapse/server_notices/server_notices_sender.py b/synapse/server_notices/server_notices_sender.py
index 9eade85851..5d23965f34 100644
--- a/synapse/server_notices/server_notices_sender.py
+++ b/synapse/server_notices/server_notices_sender.py
@@ -31,9 +31,6 @@ class ServerNoticesSender(object):
     def on_user_syncing(self, user_id):
         """Called when the user performs a sync operation.
 
-        This is only called when /sync (or /events) is called on the synapse
-        master. In a deployment with synchrotrons, on_user_ip is called
-
         Args:
             user_id (str): mxid of user who synced
 
@@ -45,7 +42,7 @@ class ServerNoticesSender(object):
         )
 
     def on_user_ip(self, user_id):
-        """Called when a worker process saw a client request.
+        """Called on the master when a worker process saw a client request.
 
         Args:
             user_id (str): mxid
@@ -53,6 +50,9 @@ class ServerNoticesSender(object):
         Returns:
             Deferred
         """
+        # The synchrotrons use a stubbed version of ServerNoticesSender, so
+        # we check for notices to send to the user in on_user_ip as well as
+        # in on_user_syncing
         return self._consent_server_notices.maybe_send_server_notice_to_user(
             user_id,
         )
diff --git a/synapse/server_notices/worker_server_notices_sender.py b/synapse/server_notices/worker_server_notices_sender.py
new file mode 100644
index 0000000000..25abb4ccf5
--- /dev/null
+++ b/synapse/server_notices/worker_server_notices_sender.py
@@ -0,0 +1,46 @@
+# -*- coding: utf-8 -*-
+# Copyright 2018 New Vector 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
+
+
+class WorkerServerNoticesSender(object):
+    """Stub impl of ServerNoticesSender which does nothing"""
+    def __init__(self, hs):
+        """
+        Args:
+            hs (synapse.server.HomeServer):
+        """
+
+    def on_user_syncing(self, user_id):
+        """Called when the user performs a sync operation.
+
+        Args:
+            user_id (str): mxid of user who synced
+
+        Returns:
+            Deferred
+        """
+        return defer.succeed()
+
+    def on_user_ip(self, user_id):
+        """Called on the master when a worker process saw a client request.
+
+        Args:
+            user_id (str): mxid
+
+        Returns:
+            Deferred
+        """
+        raise AssertionError("on_user_ip unexpectedly called on worker")