use a device replication thingy

synapse/replication/http/device.py

@@ -0,0 +1,64 @@
+# -*- coding: utf-8 -*-
+# Copyright 2019 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.
+
+import logging
+
+from twisted.internet import defer
+
+from synapse.http.servlet import parse_json_object_from_request
+from synapse.replication.http._base import ReplicationEndpoint
+
+logger = logging.getLogger(__name__)
+
+
+class CheckDeviceRegisteredServlet(ReplicationEndpoint):
+    """
+    Check a device is registered.
+
+    """
+
+    NAME = "device_check_registered"
+    PATH_ARGS = ("user_id")
+
+    def __init__(self, hs):
+        super(CheckDeviceRegisteredServlet, self).__init__(hs)
+        self.device_handler = hs.get_device_handler()
+
+    @staticmethod
+    def _serialize_payload(user_id, device_id, initial_display_name):
+        """
+        """
+        return {
+            "device_id": device_id,
+            "initial_display_name": initial_display_name,
+        }
+
+    @defer.inlineCallbacks
+    def _handle_request(self, request, user_id):
+        content = parse_json_object_from_request(request)
+
+        device_id = content["device_id"]
+        initial_display_name = content["initial_display_name"]
+
+        try:
+            device_id = yield self.device_handler.check_device_registered(user_id, device_id)
+        except Exception as e:
+            defer.returnValue((400, str(e))
+
+        defer.returnValue((200, {"device_id": device_id}))
+
+
+def register_servlets(hs, http_server):
+    CheckDeviceRegisteredServlet(hs).register(http_server)

synapse/replication/http/registration.py

@@ -1,5 +1,5 @@
 # -*- coding: utf-8 -*-
-# Copyright 2018 New Vector Ltd
+# Copyright 2019 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.

synapse/rest/client/v2_alpha/register.py

@@ -33,6 +33,7 @@ from synapse.http.servlet import (
     parse_json_object_from_request,
     parse_string,
 )
+from synapse.replication.http.device import CheckDeviceRegisteredServlet
 from synapse.replication.http.registration import (
     RegistrationUserCacheInvalidationServlet,
 )
@@ -193,12 +194,19 @@ class RegisterRestServlet(RestServlet):
         self.registration_handler = hs.get_handlers().registration_handler
         self.identity_handler = hs.get_handlers().identity_handler
         self.room_member_handler = hs.get_room_member_handler()
-        self.device_handler = hs.get_device_handler()
         self.macaroon_gen = hs.get_macaroon_generator()
 
-        self._invalidate_caches_client = (
-            RegistrationUserCacheInvalidationServlet.make_client(hs)
-        )
+        if self.hs.config.worker_app:
+
+            self._invalidate_caches_client = (
+                RegistrationUserCacheInvalidationServlet.make_client(hs)
+            )
+            self._device_check_registered_client = (
+                CheckDeviceRegisteredServlet.make_client(hs)
+            )
+        else:
+            self.device_handler = hs.get_device_handler()
+
 
     @interactive_auth_handler
     @defer.inlineCallbacks
@@ -664,6 +672,17 @@ class RegisterRestServlet(RestServlet):
             })
         defer.returnValue(result)
 
+    def _check_device_registered(self, user_id, device_id, initial_display_name):
+
+        if self.hs.config.worker_app:
+            return self._device_check_registered_client(
+                user_id, device_id, initial_display_name
+            )
+        else:
+            return self.device_handler.check_device_registered(
+                user_id, device_id, initial_display_name
+            )
+
     def _register_device(self, user_id, params):
         """Register a device for a user.
 
@@ -680,7 +699,7 @@ class RegisterRestServlet(RestServlet):
         # register the user's device
         device_id = params.get("device_id")
         initial_display_name = params.get("initial_device_display_name")
-        return self.device_handler.check_device_registered(
+        return self._check_device_registered(
             user_id, device_id, initial_display_name
         )
 
@@ -697,7 +716,7 @@ class RegisterRestServlet(RestServlet):
         # we have nowhere to store it.
         device_id = synapse.api.auth.GUEST_DEVICE_ID
         initial_display_name = params.get("initial_device_display_name")
-        yield self.device_handler.check_device_registered(
+        yield self._check_device_registered(
             user_id, device_id, initial_display_name
         )