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-rw-r--r--synapse/handlers/auth.py19
-rw-r--r--synapse/handlers/device.py71
-rw-r--r--synapse/rest/client/v1/login.py39
-rw-r--r--synapse/rest/client/v2_alpha/tokenrefresh.py10
-rw-r--r--synapse/server.py5
-rw-r--r--synapse/storage/__init__.py3
-rw-r--r--synapse/storage/devices.py77
-rw-r--r--synapse/storage/registration.py28
-rw-r--r--synapse/storage/schema/delta/33/devices.sql21
-rw-r--r--synapse/storage/schema/delta/33/refreshtoken_device.sql16
-rw-r--r--tests/handlers/test_device.py75
-rw-r--r--tests/storage/test_registration.py21
12 files changed, 354 insertions, 31 deletions
diff --git a/synapse/handlers/auth.py b/synapse/handlers/auth.py
index 983994fa95..ce9bc18849 100644
--- a/synapse/handlers/auth.py
+++ b/synapse/handlers/auth.py
@@ -361,7 +361,7 @@ class AuthHandler(BaseHandler):
         return self._check_password(user_id, password)
 
     @defer.inlineCallbacks
-    def get_login_tuple_for_user_id(self, user_id):
+    def get_login_tuple_for_user_id(self, user_id, device_id=None):
         """
         Gets login tuple for the user with the given user ID.
 
@@ -372,6 +372,7 @@ class AuthHandler(BaseHandler):
 
         Args:
             user_id (str): canonical User ID
+            device_id (str): the device ID to associate with the access token
         Returns:
             A tuple of:
               The access token for the user's session.
@@ -380,9 +381,9 @@ class AuthHandler(BaseHandler):
             StoreError if there was a problem storing the token.
             LoginError if there was an authentication problem.
         """
-        logger.info("Logging in user %s", user_id)
-        access_token = yield self.issue_access_token(user_id)
-        refresh_token = yield self.issue_refresh_token(user_id)
+        logger.info("Logging in user %s on device %s", user_id, device_id)
+        access_token = yield self.issue_access_token(user_id, device_id)
+        refresh_token = yield self.issue_refresh_token(user_id, device_id)
         defer.returnValue((access_token, refresh_token))
 
     @defer.inlineCallbacks
@@ -638,15 +639,17 @@ class AuthHandler(BaseHandler):
             defer.returnValue(False)
 
     @defer.inlineCallbacks
-    def issue_access_token(self, user_id):
+    def issue_access_token(self, user_id, device_id=None):
         access_token = self.generate_access_token(user_id)
-        yield self.store.add_access_token_to_user(user_id, access_token)
+        yield self.store.add_access_token_to_user(user_id, access_token,
+                                                  device_id)
         defer.returnValue(access_token)
 
     @defer.inlineCallbacks
-    def issue_refresh_token(self, user_id):
+    def issue_refresh_token(self, user_id, device_id=None):
         refresh_token = self.generate_refresh_token(user_id)
-        yield self.store.add_refresh_token_to_user(user_id, refresh_token)
+        yield self.store.add_refresh_token_to_user(user_id, refresh_token,
+                                                   device_id)
         defer.returnValue(refresh_token)
 
     def generate_access_token(self, user_id, extra_caveats=None,
diff --git a/synapse/handlers/device.py b/synapse/handlers/device.py
new file mode 100644
index 0000000000..8d7d9874f8
--- /dev/null
+++ b/synapse/handlers/device.py
@@ -0,0 +1,71 @@
+# -*- coding: utf-8 -*-
+# Copyright 2016 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 synapse.api.errors import StoreError
+from synapse.util import stringutils
+from twisted.internet import defer
+from ._base import BaseHandler
+
+import logging
+
+logger = logging.getLogger(__name__)
+
+
+class DeviceHandler(BaseHandler):
+    def __init__(self, hs):
+        super(DeviceHandler, self).__init__(hs)
+
+    @defer.inlineCallbacks
+    def check_device_registered(self, user_id, device_id,
+                                initial_device_display_name):
+        """
+        If the given device has not been registered, register it with the
+        supplied display name.
+
+        If no device_id is supplied, we make one up.
+
+        Args:
+            user_id (str):  @user:id
+            device_id (str | None): device id supplied by client
+            initial_device_display_name (str | None): device display name from
+                 client
+        Returns:
+            str: device id (generated if none was supplied)
+        """
+        if device_id is not None:
+            yield self.store.store_device(
+                user_id=user_id,
+                device_id=device_id,
+                initial_device_display_name=initial_device_display_name,
+                ignore_if_known=True,
+            )
+            defer.returnValue(device_id)
+
+        # if the device id is not specified, we'll autogen one, but loop a few
+        # times in case of a clash.
+        attempts = 0
+        while attempts < 5:
+            try:
+                device_id = stringutils.random_string_with_symbols(16)
+                yield self.store.store_device(
+                    user_id=user_id,
+                    device_id=device_id,
+                    initial_device_display_name=initial_device_display_name,
+                    ignore_if_known=False,
+                )
+                defer.returnValue(device_id)
+            except StoreError:
+                attempts += 1
+
+        raise StoreError(500, "Couldn't generate a device ID.")
diff --git a/synapse/rest/client/v1/login.py b/synapse/rest/client/v1/login.py
index a1f2ba8773..e8b791519c 100644
--- a/synapse/rest/client/v1/login.py
+++ b/synapse/rest/client/v1/login.py
@@ -59,6 +59,7 @@ class LoginRestServlet(ClientV1RestServlet):
         self.servername = hs.config.server_name
         self.http_client = hs.get_simple_http_client()
         self.auth_handler = self.hs.get_auth_handler()
+        self.device_handler = self.hs.get_device_handler()
 
     def on_GET(self, request):
         flows = []
@@ -149,14 +150,16 @@ class LoginRestServlet(ClientV1RestServlet):
             user_id=user_id,
             password=login_submission["password"],
         )
+        device_id = yield self._register_device(user_id, login_submission)
         access_token, refresh_token = (
-            yield auth_handler.get_login_tuple_for_user_id(user_id)
+            yield auth_handler.get_login_tuple_for_user_id(user_id, device_id)
         )
         result = {
             "user_id": user_id,  # may have changed
             "access_token": access_token,
             "refresh_token": refresh_token,
             "home_server": self.hs.hostname,
+            "device_id": device_id,
         }
 
         defer.returnValue((200, result))
@@ -168,14 +171,16 @@ class LoginRestServlet(ClientV1RestServlet):
         user_id = (
             yield auth_handler.validate_short_term_login_token_and_get_user_id(token)
         )
+        device_id = yield self._register_device(user_id, login_submission)
         access_token, refresh_token = (
-            yield auth_handler.get_login_tuple_for_user_id(user_id)
+            yield auth_handler.get_login_tuple_for_user_id(user_id, device_id)
         )
         result = {
             "user_id": user_id,  # may have changed
             "access_token": access_token,
             "refresh_token": refresh_token,
             "home_server": self.hs.hostname,
+            "device_id": device_id,
         }
 
         defer.returnValue((200, result))
@@ -252,8 +257,13 @@ class LoginRestServlet(ClientV1RestServlet):
         auth_handler = self.auth_handler
         registered_user_id = yield auth_handler.check_user_exists(user_id)
         if registered_user_id:
+            device_id = yield self._register_device(
+                registered_user_id, login_submission
+            )
             access_token, refresh_token = (
-                yield auth_handler.get_login_tuple_for_user_id(registered_user_id)
+                yield auth_handler.get_login_tuple_for_user_id(
+                    registered_user_id, device_id
+                )
             )
             result = {
                 "user_id": registered_user_id,
@@ -262,6 +272,9 @@ class LoginRestServlet(ClientV1RestServlet):
                 "home_server": self.hs.hostname,
             }
         else:
+            # TODO: we should probably check that the register isn't going
+            # to fonx/change our user_id before registering the device
+            device_id = yield self._register_device(user_id, login_submission)
             user_id, access_token = (
                 yield self.handlers.registration_handler.register(localpart=user)
             )
@@ -300,6 +313,26 @@ class LoginRestServlet(ClientV1RestServlet):
 
         return (user, attributes)
 
+    def _register_device(self, user_id, login_submission):
+        """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.
+
+        Args:
+            (str) user_id: full canonical @user:id
+            (object) login_submission: dictionary supplied to /login call, from
+               which we pull device_id and initial_device_name
+        Returns:
+            defer.Deferred: (str) device_id
+        """
+        device_id = login_submission.get("device_id")
+        initial_display_name = login_submission.get(
+            "initial_device_display_name")
+        return self.device_handler.check_device_registered(
+            user_id, device_id, initial_display_name
+        )
+
 
 class SAML2RestServlet(ClientV1RestServlet):
     PATTERNS = client_path_patterns("/login/saml2", releases=())
diff --git a/synapse/rest/client/v2_alpha/tokenrefresh.py b/synapse/rest/client/v2_alpha/tokenrefresh.py
index 8270e8787f..0d312c91d4 100644
--- a/synapse/rest/client/v2_alpha/tokenrefresh.py
+++ b/synapse/rest/client/v2_alpha/tokenrefresh.py
@@ -39,9 +39,13 @@ class TokenRefreshRestServlet(RestServlet):
         try:
             old_refresh_token = body["refresh_token"]
             auth_handler = self.hs.get_auth_handler()
-            (user_id, new_refresh_token) = yield self.store.exchange_refresh_token(
-                old_refresh_token, auth_handler.generate_refresh_token)
-            new_access_token = yield auth_handler.issue_access_token(user_id)
+            refresh_result = yield self.store.exchange_refresh_token(
+                old_refresh_token, auth_handler.generate_refresh_token
+            )
+            (user_id, new_refresh_token, device_id) = refresh_result
+            new_access_token = yield auth_handler.issue_access_token(
+                user_id, device_id
+            )
             defer.returnValue((200, {
                 "access_token": new_access_token,
                 "refresh_token": new_refresh_token,
diff --git a/synapse/server.py b/synapse/server.py
index d49a1a8a96..e8b166990d 100644
--- a/synapse/server.py
+++ b/synapse/server.py
@@ -25,6 +25,7 @@ from twisted.enterprise import adbapi
 from synapse.appservice.scheduler import ApplicationServiceScheduler
 from synapse.appservice.api import ApplicationServiceApi
 from synapse.federation import initialize_http_replication
+from synapse.handlers.device import DeviceHandler
 from synapse.http.client import SimpleHttpClient, InsecureInterceptableContextFactory
 from synapse.notifier import Notifier
 from synapse.api.auth import Auth
@@ -92,6 +93,7 @@ class HomeServer(object):
         'typing_handler',
         'room_list_handler',
         'auth_handler',
+        'device_handler',
         'application_service_api',
         'application_service_scheduler',
         'application_service_handler',
@@ -197,6 +199,9 @@ class HomeServer(object):
     def build_auth_handler(self):
         return AuthHandler(self)
 
+    def build_device_handler(self):
+        return DeviceHandler(self)
+
     def build_application_service_api(self):
         return ApplicationServiceApi(self)
 
diff --git a/synapse/storage/__init__.py b/synapse/storage/__init__.py
index 1c93e18f9d..73fb334dd6 100644
--- a/synapse/storage/__init__.py
+++ b/synapse/storage/__init__.py
@@ -14,6 +14,8 @@
 # limitations under the License.
 
 from twisted.internet import defer
+
+from synapse.storage.devices import DeviceStore
 from .appservice import (
     ApplicationServiceStore, ApplicationServiceTransactionStore
 )
@@ -80,6 +82,7 @@ class DataStore(RoomMemberStore, RoomStore,
                 EventPushActionsStore,
                 OpenIdStore,
                 ClientIpStore,
+                DeviceStore,
                 ):
 
     def __init__(self, db_conn, hs):
diff --git a/synapse/storage/devices.py b/synapse/storage/devices.py
new file mode 100644
index 0000000000..9065e96d28
--- /dev/null
+++ b/synapse/storage/devices.py
@@ -0,0 +1,77 @@
+# -*- coding: utf-8 -*-
+# Copyright 2016 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.
+import logging
+
+from twisted.internet import defer
+
+from synapse.api.errors import StoreError
+from ._base import SQLBaseStore
+
+logger = logging.getLogger(__name__)
+
+
+class DeviceStore(SQLBaseStore):
+    @defer.inlineCallbacks
+    def store_device(self, user_id, device_id,
+                     initial_device_display_name,
+                     ignore_if_known=True):
+        """Ensure the given device is known; add it to the store if not
+
+        Args:
+            user_id (str): id of user associated with the device
+            device_id (str): id of device
+            initial_device_display_name (str): initial displayname of the
+               device
+            ignore_if_known (bool): ignore integrity errors which mean the
+               device is already known
+        Returns:
+            defer.Deferred
+        Raises:
+            StoreError: if ignore_if_known is False and the device was already
+               known
+        """
+        try:
+            yield self._simple_insert(
+                "devices",
+                values={
+                    "user_id": user_id,
+                    "device_id": device_id,
+                    "display_name": initial_device_display_name
+                },
+                desc="store_device",
+                or_ignore=ignore_if_known,
+            )
+        except Exception as e:
+            logger.error("store_device with device_id=%s failed: %s",
+                         device_id, e)
+            raise StoreError(500, "Problem storing device.")
+
+    def get_device(self, user_id, device_id):
+        """Retrieve a device.
+
+        Args:
+            user_id (str): The ID of the user which owns the device
+            device_id (str): The ID of the device to retrieve
+        Returns:
+            defer.Deferred for a namedtuple containing the device information
+        Raises:
+            StoreError: if the device is not found
+        """
+        return self._simple_select_one(
+            table="devices",
+            keyvalues={"user_id": user_id, "device_id": device_id},
+            retcols=("user_id", "device_id", "display_name"),
+            desc="get_device",
+        )
diff --git a/synapse/storage/registration.py b/synapse/storage/registration.py
index d957a629dc..26ef1cfd8a 100644
--- a/synapse/storage/registration.py
+++ b/synapse/storage/registration.py
@@ -31,12 +31,14 @@ class RegistrationStore(SQLBaseStore):
         self.clock = hs.get_clock()
 
     @defer.inlineCallbacks
-    def add_access_token_to_user(self, user_id, token):
+    def add_access_token_to_user(self, user_id, token, device_id=None):
         """Adds an access token for the given user.
 
         Args:
             user_id (str): The user ID.
             token (str): The new access token to add.
+            device_id (str): ID of the device to associate with the access
+               token
         Raises:
             StoreError if there was a problem adding this.
         """
@@ -47,18 +49,21 @@ class RegistrationStore(SQLBaseStore):
             {
                 "id": next_id,
                 "user_id": user_id,
-                "token": token
+                "token": token,
+                "device_id": device_id,
             },
             desc="add_access_token_to_user",
         )
 
     @defer.inlineCallbacks
-    def add_refresh_token_to_user(self, user_id, token):
+    def add_refresh_token_to_user(self, user_id, token, device_id=None):
         """Adds a refresh token for the given user.
 
         Args:
             user_id (str): The user ID.
             token (str): The new refresh token to add.
+            device_id (str): ID of the device to associate with the access
+               token
         Raises:
             StoreError if there was a problem adding this.
         """
@@ -69,7 +74,8 @@ class RegistrationStore(SQLBaseStore):
             {
                 "id": next_id,
                 "user_id": user_id,
-                "token": token
+                "token": token,
+                "device_id": device_id,
             },
             desc="add_refresh_token_to_user",
         )
@@ -291,18 +297,18 @@ class RegistrationStore(SQLBaseStore):
         )
 
     def exchange_refresh_token(self, refresh_token, token_generator):
-        """Exchange a refresh token for a new access token and refresh token.
+        """Exchange a refresh token for a new one.
 
         Doing so invalidates the old refresh token - refresh tokens are single
         use.
 
         Args:
-            token (str): The refresh token of a user.
+            refresh_token (str): The refresh token of a user.
             token_generator (fn: str -> str): Function which, when given a
                 user ID, returns a unique refresh token for that user. This
                 function must never return the same value twice.
         Returns:
-            tuple of (user_id, refresh_token)
+            tuple of (user_id, new_refresh_token, device_id)
         Raises:
             StoreError if no user was found with that refresh token.
         """
@@ -314,12 +320,13 @@ class RegistrationStore(SQLBaseStore):
         )
 
     def _exchange_refresh_token(self, txn, old_token, token_generator):
-        sql = "SELECT user_id FROM refresh_tokens WHERE token = ?"
+        sql = "SELECT user_id, device_id FROM refresh_tokens WHERE token = ?"
         txn.execute(sql, (old_token,))
         rows = self.cursor_to_dict(txn)
         if not rows:
             raise StoreError(403, "Did not recognize refresh token")
         user_id = rows[0]["user_id"]
+        device_id = rows[0]["device_id"]
 
         # TODO(danielwh): Maybe perform a validation on the macaroon that
         # macaroon.user_id == user_id.
@@ -328,7 +335,7 @@ class RegistrationStore(SQLBaseStore):
         sql = "UPDATE refresh_tokens SET token = ? WHERE token = ?"
         txn.execute(sql, (new_token, old_token,))
 
-        return user_id, new_token
+        return user_id, new_token, device_id
 
     @defer.inlineCallbacks
     def is_server_admin(self, user):
@@ -356,7 +363,8 @@ class RegistrationStore(SQLBaseStore):
 
     def _query_for_auth(self, txn, token):
         sql = (
-            "SELECT users.name, users.is_guest, access_tokens.id as token_id"
+            "SELECT users.name, users.is_guest, access_tokens.id as token_id,"
+            " access_tokens.device_id"
             " FROM users"
             " INNER JOIN access_tokens on users.name = access_tokens.user_id"
             " WHERE token = ?"
diff --git a/synapse/storage/schema/delta/33/devices.sql b/synapse/storage/schema/delta/33/devices.sql
new file mode 100644
index 0000000000..eca7268d82
--- /dev/null
+++ b/synapse/storage/schema/delta/33/devices.sql
@@ -0,0 +1,21 @@
+/* Copyright 2016 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.
+ */
+
+CREATE TABLE devices (
+    user_id TEXT NOT NULL,
+    device_id TEXT NOT NULL,
+    display_name TEXT,
+    CONSTRAINT device_uniqueness UNIQUE (user_id, device_id)
+);
diff --git a/synapse/storage/schema/delta/33/refreshtoken_device.sql b/synapse/storage/schema/delta/33/refreshtoken_device.sql
new file mode 100644
index 0000000000..290bd6da86
--- /dev/null
+++ b/synapse/storage/schema/delta/33/refreshtoken_device.sql
@@ -0,0 +1,16 @@
+/* Copyright 2016 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.
+ */
+
+ALTER TABLE refresh_tokens ADD COLUMN device_id TEXT;
diff --git a/tests/handlers/test_device.py b/tests/handlers/test_device.py
new file mode 100644
index 0000000000..cc6512ccc7
--- /dev/null
+++ b/tests/handlers/test_device.py
@@ -0,0 +1,75 @@
+# -*- coding: utf-8 -*-
+# Copyright 2016 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 synapse.handlers.device import DeviceHandler
+from tests import unittest
+from tests.utils import setup_test_homeserver
+
+
+class DeviceHandlers(object):
+    def __init__(self, hs):
+        self.device_handler = DeviceHandler(hs)
+
+
+class DeviceTestCase(unittest.TestCase):
+    @defer.inlineCallbacks
+    def setUp(self):
+        self.hs = yield setup_test_homeserver(handlers=None)
+        self.hs.handlers = handlers = DeviceHandlers(self.hs)
+        self.handler = handlers.device_handler
+
+    @defer.inlineCallbacks
+    def test_device_is_created_if_doesnt_exist(self):
+        res = yield self.handler.check_device_registered(
+            user_id="boris",
+            device_id="fco",
+            initial_device_display_name="display name"
+        )
+        self.assertEqual(res, "fco")
+
+        dev = yield self.handler.store.get_device("boris", "fco")
+        self.assertEqual(dev["display_name"], "display name")
+
+    @defer.inlineCallbacks
+    def test_device_is_preserved_if_exists(self):
+        res1 = yield self.handler.check_device_registered(
+            user_id="boris",
+            device_id="fco",
+            initial_device_display_name="display name"
+        )
+        self.assertEqual(res1, "fco")
+
+        res2 = yield self.handler.check_device_registered(
+            user_id="boris",
+            device_id="fco",
+            initial_device_display_name="new display name"
+        )
+        self.assertEqual(res2, "fco")
+
+        dev = yield self.handler.store.get_device("boris", "fco")
+        self.assertEqual(dev["display_name"], "display name")
+
+    @defer.inlineCallbacks
+    def test_device_id_is_made_up_if_unspecified(self):
+        device_id = yield self.handler.check_device_registered(
+            user_id="theresa",
+            device_id=None,
+            initial_device_display_name="display"
+        )
+
+        dev = yield self.handler.store.get_device("theresa", device_id)
+        self.assertEqual(dev["display_name"], "display")
diff --git a/tests/storage/test_registration.py b/tests/storage/test_registration.py
index b8384c98d8..b03ca303a2 100644
--- a/tests/storage/test_registration.py
+++ b/tests/storage/test_registration.py
@@ -38,6 +38,7 @@ class RegistrationStoreTestCase(unittest.TestCase):
             "BcDeFgHiJkLmNoPqRsTuVwXyZa"
         ]
         self.pwhash = "{xx1}123456789"
+        self.device_id = "akgjhdjklgshg"
 
     @defer.inlineCallbacks
     def test_register(self):
@@ -64,13 +65,15 @@ class RegistrationStoreTestCase(unittest.TestCase):
     @defer.inlineCallbacks
     def test_add_tokens(self):
         yield self.store.register(self.user_id, self.tokens[0], self.pwhash)
-        yield self.store.add_access_token_to_user(self.user_id, self.tokens[1])
+        yield self.store.add_access_token_to_user(self.user_id, self.tokens[1],
+                                                  self.device_id)
 
         result = yield self.store.get_user_by_access_token(self.tokens[1])
 
         self.assertDictContainsSubset(
             {
                 "name": self.user_id,
+                "device_id": self.device_id,
             },
             result
         )
@@ -80,20 +83,24 @@ class RegistrationStoreTestCase(unittest.TestCase):
     @defer.inlineCallbacks
     def test_exchange_refresh_token_valid(self):
         uid = stringutils.random_string(32)
+        device_id = stringutils.random_string(16)
         generator = TokenGenerator()
         last_token = generator.generate(uid)
 
         self.db_pool.runQuery(
-            "INSERT INTO refresh_tokens(user_id, token) VALUES(?,?)",
-            (uid, last_token,))
+            "INSERT INTO refresh_tokens(user_id, token, device_id) "
+            "VALUES(?,?,?)",
+            (uid, last_token, device_id))
 
-        (found_user_id, refresh_token) = yield self.store.exchange_refresh_token(
-            last_token, generator.generate)
+        (found_user_id, refresh_token, device_id) = \
+            yield self.store.exchange_refresh_token(last_token,
+                                                    generator.generate)
         self.assertEqual(uid, found_user_id)
 
         rows = yield self.db_pool.runQuery(
-            "SELECT token FROM refresh_tokens WHERE user_id = ?", (uid, ))
-        self.assertEqual([(refresh_token,)], rows)
+            "SELECT token, device_id FROM refresh_tokens WHERE user_id = ?",
+            (uid, ))
+        self.assertEqual([(refresh_token, device_id)], rows)
         # We issued token 1, then exchanged it for token 2
         expected_refresh_token = u"%s-%d" % (uid, 2,)
         self.assertEqual(expected_refresh_token, refresh_token)