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-rw-r--r--synapse/rest/client/v2_alpha/register.py73
1 files changed, 46 insertions, 27 deletions
diff --git a/synapse/rest/client/v2_alpha/register.py b/synapse/rest/client/v2_alpha/register.py
index 7f812b8209..d78da50787 100644
--- a/synapse/rest/client/v2_alpha/register.py
+++ b/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.login import RegisterDeviceReplicationServlet
 from synapse.util.msisdn import phone_number_to_msisdn
 from synapse.util.ratelimitutils import FederationRateLimiter
 from synapse.util.threepids import check_3pid_allowed
@@ -190,9 +191,15 @@ 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()
 
+        if self.hs.config.worker_app:
+            self._register_device_client = (
+                RegisterDeviceReplicationServlet.make_client(hs)
+            )
+        else:
+            self.device_handler = hs.get_device_handler()
+
     @interactive_auth_handler
     @defer.inlineCallbacks
     def on_POST(self, request):
@@ -633,12 +640,10 @@ class RegisterRestServlet(RestServlet):
             "home_server": self.hs.hostname,
         }
         if not params.get("inhibit_login", False):
-            device_id = yield self._register_device(user_id, params)
-
-            access_token = (
-                yield self.auth_handler.get_access_token_for_user_id(
-                    user_id, device_id=device_id,
-                )
+            device_id = params.get("device_id")
+            initial_display_name = params.get("initial_device_display_name")
+            device_id, access_token = yield self._register_device(
+                user_id, device_id, initial_display_name, is_guest=False,
             )
 
             result.update({
@@ -647,25 +652,42 @@ class RegisterRestServlet(RestServlet):
             })
         defer.returnValue(result)
 
-    def _register_device(self, user_id, params):
-        """Register a device for a user.
-
-        This is called after the user's credentials have been validated, but
-        before the access token has been issued.
+    @defer.inlineCallbacks
+    def _register_device(self, user_id, device_id, initial_display_name,
+                         is_guest):
+        """Register a device for a user and generate an access token.
 
         Args:
-            (str) user_id: full canonical @user:id
-            (object) params: registration parameters, from which we pull
-                device_id and initial_device_name
+            user_id (str): full canonical @user:id
+            device_id (str|None): The device ID to check, or None to generate
+                a new one.
+            initial_display_name (str|None): An optional display name for the
+                device.
+            is_guest (bool): Whether this is a guest account
         Returns:
-            defer.Deferred: (str) device_id
+            defer.Deferred[(str, str)]: Tuple of device ID and access token
         """
-        # 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(
-            user_id, device_id, initial_display_name
-        )
+        if self.hs.config.worker_app:
+            r = yield self._register_device_client(
+                user_id=user_id,
+                device_id=device_id,
+                initial_display_name=initial_display_name,
+                is_guest=is_guest,
+            )
+            defer.returnValue((r["device_id"], r["access_token"]))
+        else:
+            device_id = yield self.device_handler.check_device_registered(
+                user_id, device_id, initial_display_name
+            )
+            if is_guest:
+                access_token = self.macaroon_gen.generate_access_token(
+                    user_id, ["guest = true"]
+                )
+            else:
+                access_token = yield self.auth_handler.get_access_token_for_user_id(
+                    user_id, device_id=device_id,
+                )
+            defer.returnValue((device_id, access_token))
 
     @defer.inlineCallbacks
     def _do_guest_registration(self, params):
@@ -680,13 +702,10 @@ 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(
-            user_id, device_id, initial_display_name
+        device_id, access_token = yield self._register_device(
+            user_id, device_id, initial_display_name, is_guest=True,
         )
 
-        access_token = self.macaroon_gen.generate_access_token(
-            user_id, ["guest = true"]
-        )
         defer.returnValue((200, {
             "user_id": user_id,
             "device_id": device_id,