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authorErik Johnston <erik@matrix.org>2019-02-25 15:08:18 +0000
committerErik Johnston <erik@matrix.org>2019-02-25 15:08:18 +0000
commit4b9e5076c40964a967a48a2c02623c81a43265aa (patch)
treeae977487f07c0e64e406ada53655b3f69edb664e /synapse/rest/client/v2_alpha
parentDocs and arg name clarification (diff)
parentMerge pull request #4723 from matrix-org/erikj/frontend_proxy_exception (diff)
downloadsynapse-4b9e5076c40964a967a48a2c02623c81a43265aa.tar.xz
Merge branch 'develop' of github.com:matrix-org/synapse into anoa/public_rooms_federate
Diffstat (limited to 'synapse/rest/client/v2_alpha')
-rw-r--r--synapse/rest/client/v2_alpha/account_data.py34
-rw-r--r--synapse/rest/client/v2_alpha/auth.py115
-rw-r--r--synapse/rest/client/v2_alpha/capabilities.py66
-rw-r--r--synapse/rest/client/v2_alpha/register.py206
-rw-r--r--synapse/rest/client/v2_alpha/room_keys.py55
-rw-r--r--synapse/rest/client/v2_alpha/room_upgrade_rest_servlet.py89
-rw-r--r--synapse/rest/client/v2_alpha/sync.py2
7 files changed, 369 insertions, 198 deletions
diff --git a/synapse/rest/client/v2_alpha/account_data.py b/synapse/rest/client/v2_alpha/account_data.py
index 371e9aa354..f171b8d626 100644
--- a/synapse/rest/client/v2_alpha/account_data.py
+++ b/synapse/rest/client/v2_alpha/account_data.py
@@ -17,7 +17,7 @@ import logging
 
 from twisted.internet import defer
 
-from synapse.api.errors import AuthError, SynapseError
+from synapse.api.errors import AuthError, NotFoundError, SynapseError
 from synapse.http.servlet import RestServlet, parse_json_object_from_request
 
 from ._base import client_v2_patterns
@@ -28,6 +28,7 @@ logger = logging.getLogger(__name__)
 class AccountDataServlet(RestServlet):
     """
     PUT /user/{user_id}/account_data/{account_dataType} HTTP/1.1
+    GET /user/{user_id}/account_data/{account_dataType} HTTP/1.1
     """
     PATTERNS = client_v2_patterns(
         "/user/(?P<user_id>[^/]*)/account_data/(?P<account_data_type>[^/]*)"
@@ -57,10 +58,26 @@ class AccountDataServlet(RestServlet):
 
         defer.returnValue((200, {}))
 
+    @defer.inlineCallbacks
+    def on_GET(self, request, user_id, account_data_type):
+        requester = yield self.auth.get_user_by_req(request)
+        if user_id != requester.user.to_string():
+            raise AuthError(403, "Cannot get account data for other users.")
+
+        event = yield self.store.get_global_account_data_by_type_for_user(
+            account_data_type, user_id,
+        )
+
+        if event is None:
+            raise NotFoundError("Account data not found")
+
+        defer.returnValue((200, event))
+
 
 class RoomAccountDataServlet(RestServlet):
     """
     PUT /user/{user_id}/rooms/{room_id}/account_data/{account_dataType} HTTP/1.1
+    GET /user/{user_id}/rooms/{room_id}/account_data/{account_dataType} HTTP/1.1
     """
     PATTERNS = client_v2_patterns(
         "/user/(?P<user_id>[^/]*)"
@@ -99,6 +116,21 @@ class RoomAccountDataServlet(RestServlet):
 
         defer.returnValue((200, {}))
 
+    @defer.inlineCallbacks
+    def on_GET(self, request, user_id, room_id, account_data_type):
+        requester = yield self.auth.get_user_by_req(request)
+        if user_id != requester.user.to_string():
+            raise AuthError(403, "Cannot get account data for other users.")
+
+        event = yield self.store.get_account_data_for_room_and_type(
+            user_id, room_id, account_data_type,
+        )
+
+        if event is None:
+            raise NotFoundError("Room account data not found")
+
+        defer.returnValue((200, event))
+
 
 def register_servlets(hs, http_server):
     AccountDataServlet(hs).register(http_server)
diff --git a/synapse/rest/client/v2_alpha/auth.py b/synapse/rest/client/v2_alpha/auth.py
index 693b303881..f7bb710642 100644
--- a/synapse/rest/client/v2_alpha/auth.py
+++ b/synapse/rest/client/v2_alpha/auth.py
@@ -21,7 +21,7 @@ from synapse.api.constants import LoginType
 from synapse.api.errors import SynapseError
 from synapse.api.urls import CLIENT_V2_ALPHA_PREFIX
 from synapse.http.server import finish_request
-from synapse.http.servlet import RestServlet
+from synapse.http.servlet import RestServlet, parse_string
 
 from ._base import client_v2_patterns
 
@@ -68,6 +68,29 @@ function captchaDone() {
 </html>
 """
 
+TERMS_TEMPLATE = """
+<html>
+<head>
+<title>Authentication</title>
+<meta name='viewport' content='width=device-width, initial-scale=1,
+    user-scalable=no, minimum-scale=1.0, maximum-scale=1.0'>
+<link rel="stylesheet" href="/_matrix/static/client/register/style.css">
+</head>
+<body>
+<form id="registrationForm" method="post" action="%(myurl)s">
+    <div>
+        <p>
+            Please click the button below if you agree to the
+            <a href="%(terms_url)s">privacy policy of this homeserver.</a>
+        </p>
+        <input type="hidden" name="session" value="%(session)s" />
+        <input type="submit" value="Agree" />
+    </div>
+</form>
+</body>
+</html>
+"""
+
 SUCCESS_TEMPLATE = """
 <html>
 <head>
@@ -106,18 +129,14 @@ class AuthRestServlet(RestServlet):
         self.hs = hs
         self.auth = hs.get_auth()
         self.auth_handler = hs.get_auth_handler()
-        self.registration_handler = hs.get_handlers().registration_handler
+        self.registration_handler = hs.get_registration_handler()
 
-    @defer.inlineCallbacks
     def on_GET(self, request, stagetype):
-        yield
-        if stagetype == LoginType.RECAPTCHA:
-            if ('session' not in request.args or
-                    len(request.args['session']) == 0):
-                raise SynapseError(400, "No session supplied")
-
-            session = request.args["session"][0]
+        session = parse_string(request, "session")
+        if not session:
+            raise SynapseError(400, "No session supplied")
 
+        if stagetype == LoginType.RECAPTCHA:
             html = RECAPTCHA_TEMPLATE % {
                 'session': session,
                 'myurl': "%s/auth/%s/fallback/web" % (
@@ -132,25 +151,44 @@ class AuthRestServlet(RestServlet):
 
             request.write(html_bytes)
             finish_request(request)
-            defer.returnValue(None)
+            return None
+        elif stagetype == LoginType.TERMS:
+            html = TERMS_TEMPLATE % {
+                'session': session,
+                'terms_url': "%s_matrix/consent?v=%s" % (
+                    self.hs.config.public_baseurl,
+                    self.hs.config.user_consent_version,
+                ),
+                'myurl': "%s/auth/%s/fallback/web" % (
+                    CLIENT_V2_ALPHA_PREFIX, LoginType.TERMS
+                ),
+            }
+            html_bytes = html.encode("utf8")
+            request.setResponseCode(200)
+            request.setHeader(b"Content-Type", b"text/html; charset=utf-8")
+            request.setHeader(b"Content-Length", b"%d" % (len(html_bytes),))
+
+            request.write(html_bytes)
+            finish_request(request)
+            return None
         else:
             raise SynapseError(404, "Unknown auth stage type")
 
     @defer.inlineCallbacks
     def on_POST(self, request, stagetype):
-        yield
-        if stagetype == "m.login.recaptcha":
-            if ('g-recaptcha-response' not in request.args or
-                    len(request.args['g-recaptcha-response'])) == 0:
-                raise SynapseError(400, "No captcha response supplied")
-            if ('session' not in request.args or
-                    len(request.args['session'])) == 0:
-                raise SynapseError(400, "No session supplied")
 
-            session = request.args['session'][0]
+        session = parse_string(request, "session")
+        if not session:
+            raise SynapseError(400, "No session supplied")
+
+        if stagetype == LoginType.RECAPTCHA:
+            response = parse_string(request, "g-recaptcha-response")
+
+            if not response:
+                raise SynapseError(400, "No captcha response supplied")
 
             authdict = {
-                'response': request.args['g-recaptcha-response'][0],
+                'response': response,
                 'session': session,
             }
 
@@ -179,6 +217,41 @@ class AuthRestServlet(RestServlet):
             finish_request(request)
 
             defer.returnValue(None)
+        elif stagetype == LoginType.TERMS:
+            if ('session' not in request.args or
+                    len(request.args['session'])) == 0:
+                raise SynapseError(400, "No session supplied")
+
+            session = request.args['session'][0]
+            authdict = {'session': session}
+
+            success = yield self.auth_handler.add_oob_auth(
+                LoginType.TERMS,
+                authdict,
+                self.hs.get_ip_from_request(request)
+            )
+
+            if success:
+                html = SUCCESS_TEMPLATE
+            else:
+                html = TERMS_TEMPLATE % {
+                    'session': session,
+                    'terms_url': "%s_matrix/consent?v=%s" % (
+                        self.hs.config.public_baseurl,
+                        self.hs.config.user_consent_version,
+                    ),
+                    'myurl': "%s/auth/%s/fallback/web" % (
+                        CLIENT_V2_ALPHA_PREFIX, LoginType.TERMS
+                    ),
+                }
+            html_bytes = html.encode("utf8")
+            request.setResponseCode(200)
+            request.setHeader(b"Content-Type", b"text/html; charset=utf-8")
+            request.setHeader(b"Content-Length", b"%d" % (len(html_bytes),))
+
+            request.write(html_bytes)
+            finish_request(request)
+            defer.returnValue(None)
         else:
             raise SynapseError(404, "Unknown auth stage type")
 
diff --git a/synapse/rest/client/v2_alpha/capabilities.py b/synapse/rest/client/v2_alpha/capabilities.py
new file mode 100644
index 0000000000..373f95126e
--- /dev/null
+++ b/synapse/rest/client/v2_alpha/capabilities.py
@@ -0,0 +1,66 @@
+# -*- coding: utf-8 -*-
+# Copyright 2019 New Vector
+#
+# 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.constants import DEFAULT_ROOM_VERSION, RoomDisposition, RoomVersions
+from synapse.http.servlet import RestServlet
+
+from ._base import client_v2_patterns
+
+logger = logging.getLogger(__name__)
+
+
+class CapabilitiesRestServlet(RestServlet):
+    """End point to expose the capabilities of the server."""
+
+    PATTERNS = client_v2_patterns("/capabilities$")
+
+    def __init__(self, hs):
+        """
+        Args:
+            hs (synapse.server.HomeServer): server
+        """
+        super(CapabilitiesRestServlet, self).__init__()
+        self.hs = hs
+        self.auth = hs.get_auth()
+        self.store = hs.get_datastore()
+
+    @defer.inlineCallbacks
+    def on_GET(self, request):
+        requester = yield self.auth.get_user_by_req(request, allow_guest=True)
+        user = yield self.store.get_user_by_id(requester.user.to_string())
+        change_password = bool(user["password_hash"])
+
+        response = {
+            "capabilities": {
+                "m.room_versions": {
+                    "default": DEFAULT_ROOM_VERSION,
+                    "available": {
+                        RoomVersions.V1: RoomDisposition.STABLE,
+                        RoomVersions.V2: RoomDisposition.STABLE,
+                        RoomVersions.STATE_V2_TEST: RoomDisposition.UNSTABLE,
+                        RoomVersions.V3: RoomDisposition.STABLE,
+                    },
+                },
+                "m.change_password": {"enabled": change_password},
+            }
+        }
+        defer.returnValue((200, response))
+
+
+def register_servlets(hs, http_server):
+    CapabilitiesRestServlet(hs).register(http_server)
diff --git a/synapse/rest/client/v2_alpha/register.py b/synapse/rest/client/v2_alpha/register.py
index 192f52e462..94cbba4303 100644
--- a/synapse/rest/client/v2_alpha/register.py
+++ b/synapse/rest/client/v2_alpha/register.py
@@ -145,7 +145,7 @@ class UsernameAvailabilityRestServlet(RestServlet):
         """
         super(UsernameAvailabilityRestServlet, self).__init__()
         self.hs = hs
-        self.registration_handler = hs.get_handlers().registration_handler
+        self.registration_handler = hs.get_registration_handler()
         self.ratelimiter = FederationRateLimiter(
             hs.get_clock(),
             # Time window of 2s
@@ -187,10 +187,9 @@ class RegisterRestServlet(RestServlet):
         self.auth = hs.get_auth()
         self.store = hs.get_datastore()
         self.auth_handler = hs.get_auth_handler()
-        self.registration_handler = hs.get_handlers().registration_handler
+        self.registration_handler = hs.get_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()
 
     @interactive_auth_handler
@@ -309,22 +308,16 @@ class RegisterRestServlet(RestServlet):
                 assigned_user_id=registered_user_id,
             )
 
-        # Only give msisdn flows if the x_show_msisdn flag is given:
-        # this is a hack to work around the fact that clients were shipped
-        # that use fallback registration if they see any flows that they don't
-        # recognise, which means we break registration for these clients if we
-        # advertise msisdn flows. Once usage of Riot iOS <=0.3.9 and Riot
-        # Android <=0.6.9 have fallen below an acceptable threshold, this
-        # parameter should go away and we should always advertise msisdn flows.
-        show_msisdn = False
-        if 'x_show_msisdn' in body and body['x_show_msisdn']:
-            show_msisdn = True
-
         # FIXME: need a better error than "no auth flow found" for scenarios
         # where we required 3PID for registration but the user didn't give one
         require_email = 'email' in self.hs.config.registrations_require_3pid
         require_msisdn = 'msisdn' in self.hs.config.registrations_require_3pid
 
+        show_msisdn = True
+        if self.hs.config.disable_msisdn_registration:
+            show_msisdn = False
+            require_msisdn = False
+
         flows = []
         if self.hs.config.enable_registration_captcha:
             # only support 3PIDless registration if no 3PIDs are required
@@ -359,6 +352,13 @@ class RegisterRestServlet(RestServlet):
                     [LoginType.MSISDN, LoginType.EMAIL_IDENTITY]
                 ])
 
+        # Append m.login.terms to all flows if we're requiring consent
+        if self.hs.config.user_consent_at_registration:
+            new_flows = []
+            for flow in flows:
+                flow.append(LoginType.TERMS)
+            flows.extend(new_flows)
+
         auth_result, params, session_id = yield self.auth_handler.check_auth(
             flows, body, self.hs.get_ip_from_request(request)
         )
@@ -389,8 +389,7 @@ class RegisterRestServlet(RestServlet):
                 registered_user_id
             )
             # don't re-register the threepids
-            add_email = False
-            add_msisdn = False
+            registered = False
         else:
             # NB: This may be from the auth handler and NOT from the POST
             assert_params_in_dict(params, ["password"])
@@ -415,8 +414,11 @@ class RegisterRestServlet(RestServlet):
             )
             # Necessary due to auth checks prior to the threepid being
             # written to the db
-            if is_threepid_reserved(self.hs.config, threepid):
-                yield self.store.upsert_monthly_active_user(registered_user_id)
+            if threepid:
+                if is_threepid_reserved(
+                    self.hs.config.mau_limits_reserved_threepids, threepid
+                ):
+                    yield self.store.upsert_monthly_active_user(registered_user_id)
 
             # remember that we've now registered that user account, and with
             #  what user ID (since the user may not have specified)
@@ -424,25 +426,19 @@ class RegisterRestServlet(RestServlet):
                 session_id, "registered_user_id", registered_user_id
             )
 
-            add_email = True
-            add_msisdn = True
+            registered = True
 
         return_dict = yield self._create_registration_details(
             registered_user_id, params
         )
 
-        if add_email and auth_result and LoginType.EMAIL_IDENTITY in auth_result:
-            threepid = auth_result[LoginType.EMAIL_IDENTITY]
-            yield self._register_email_threepid(
-                registered_user_id, threepid, return_dict["access_token"],
-                params.get("bind_email")
-            )
-
-        if add_msisdn and auth_result and LoginType.MSISDN in auth_result:
-            threepid = auth_result[LoginType.MSISDN]
-            yield self._register_msisdn_threepid(
-                registered_user_id, threepid, return_dict["access_token"],
-                params.get("bind_msisdn")
+        if registered:
+            yield self.registration_handler.post_registration_actions(
+                user_id=registered_user_id,
+                auth_result=auth_result,
+                access_token=return_dict.get("access_token"),
+                bind_email=params.get("bind_email"),
+                bind_msisdn=params.get("bind_msisdn"),
             )
 
         defer.returnValue((200, return_dict))
@@ -496,115 +492,6 @@ class RegisterRestServlet(RestServlet):
         defer.returnValue(result)
 
     @defer.inlineCallbacks
-    def _register_email_threepid(self, user_id, threepid, token, bind_email):
-        """Add an email address as a 3pid identifier
-
-        Also adds an email pusher for the email address, if configured in the
-        HS config
-
-        Also optionally binds emails to the given user_id on the identity server
-
-        Args:
-            user_id (str): id of user
-            threepid (object): m.login.email.identity auth response
-            token (str): access_token for the user
-            bind_email (bool): true if the client requested the email to be
-                bound at the identity server
-        Returns:
-            defer.Deferred:
-        """
-        reqd = ('medium', 'address', 'validated_at')
-        if any(x not in threepid for x in reqd):
-            # This will only happen if the ID server returns a malformed response
-            logger.info("Can't add incomplete 3pid")
-            return
-
-        yield self.auth_handler.add_threepid(
-            user_id,
-            threepid['medium'],
-            threepid['address'],
-            threepid['validated_at'],
-        )
-
-        # And we add an email pusher for them by default, but only
-        # if email notifications are enabled (so people don't start
-        # getting mail spam where they weren't before if email
-        # notifs are set up on a home server)
-        if (self.hs.config.email_enable_notifs and
-                self.hs.config.email_notif_for_new_users):
-            # Pull the ID of the access token back out of the db
-            # It would really make more sense for this to be passed
-            # up when the access token is saved, but that's quite an
-            # invasive change I'd rather do separately.
-            user_tuple = yield self.store.get_user_by_access_token(
-                token
-            )
-            token_id = user_tuple["token_id"]
-
-            yield self.hs.get_pusherpool().add_pusher(
-                user_id=user_id,
-                access_token=token_id,
-                kind="email",
-                app_id="m.email",
-                app_display_name="Email Notifications",
-                device_display_name=threepid["address"],
-                pushkey=threepid["address"],
-                lang=None,  # We don't know a user's language here
-                data={},
-            )
-
-        if bind_email:
-            logger.info("bind_email specified: binding")
-            logger.debug("Binding emails %s to %s" % (
-                threepid, user_id
-            ))
-            yield self.identity_handler.bind_threepid(
-                threepid['threepid_creds'], user_id
-            )
-        else:
-            logger.info("bind_email not specified: not binding email")
-
-    @defer.inlineCallbacks
-    def _register_msisdn_threepid(self, user_id, threepid, token, bind_msisdn):
-        """Add a phone number as a 3pid identifier
-
-        Also optionally binds msisdn to the given user_id on the identity server
-
-        Args:
-            user_id (str): id of user
-            threepid (object): m.login.msisdn auth response
-            token (str): access_token for the user
-            bind_email (bool): true if the client requested the email to be
-                bound at the identity server
-        Returns:
-            defer.Deferred:
-        """
-        try:
-            assert_params_in_dict(threepid, ['medium', 'address', 'validated_at'])
-        except SynapseError as ex:
-            if ex.errcode == Codes.MISSING_PARAM:
-                # This will only happen if the ID server returns a malformed response
-                logger.info("Can't add incomplete 3pid")
-                defer.returnValue(None)
-            raise
-
-        yield self.auth_handler.add_threepid(
-            user_id,
-            threepid['medium'],
-            threepid['address'],
-            threepid['validated_at'],
-        )
-
-        if bind_msisdn:
-            logger.info("bind_msisdn specified: binding")
-            logger.debug("Binding msisdn %s to %s", threepid, user_id)
-            yield self.identity_handler.bind_threepid(
-                threepid['threepid_creds'], user_id
-            )
-        else:
-            logger.info("bind_msisdn not specified: not binding msisdn")
-
-    @defer.inlineCallbacks
     def _create_registration_details(self, user_id, params):
         """Complete registration of newly-registered user
 
@@ -622,12 +509,10 @@ 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.registration_handler.register_device(
+                user_id, device_id, initial_display_name, is_guest=False,
             )
 
             result.update({
@@ -636,26 +521,6 @@ 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.
-
-        Args:
-            (str) user_id: full canonical @user:id
-            (object) params: registration parameters, from which we pull
-                device_id and initial_device_name
-        Returns:
-            defer.Deferred: (str) device_id
-        """
-        # 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
-        )
-
     @defer.inlineCallbacks
     def _do_guest_registration(self, params):
         if not self.hs.config.allow_guest_access:
@@ -669,13 +534,10 @@ 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.registration_handler.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,
diff --git a/synapse/rest/client/v2_alpha/room_keys.py b/synapse/rest/client/v2_alpha/room_keys.py
index 45b5817d8b..220a0de30b 100644
--- a/synapse/rest/client/v2_alpha/room_keys.py
+++ b/synapse/rest/client/v2_alpha/room_keys.py
@@ -17,7 +17,7 @@ import logging
 
 from twisted.internet import defer
 
-from synapse.api.errors import Codes, SynapseError
+from synapse.api.errors import Codes, NotFoundError, SynapseError
 from synapse.http.servlet import (
     RestServlet,
     parse_json_object_from_request,
@@ -208,10 +208,25 @@ class RoomKeysServlet(RestServlet):
             user_id, version, room_id, session_id
         )
 
+        # Convert room_keys to the right format to return.
         if session_id:
-            room_keys = room_keys['rooms'][room_id]['sessions'][session_id]
+            # If the client requests a specific session, but that session was
+            # not backed up, then return an M_NOT_FOUND.
+            if room_keys['rooms'] == {}:
+                raise NotFoundError("No room_keys found")
+            else:
+                room_keys = room_keys['rooms'][room_id]['sessions'][session_id]
         elif room_id:
-            room_keys = room_keys['rooms'][room_id]
+            # If the client requests all sessions from a room, but no sessions
+            # are found, then return an empty result rather than an error, so
+            # that clients don't have to handle an error condition, and an
+            # empty result is valid.  (Similarly if the client requests all
+            # sessions from the backup, but in that case, room_keys is already
+            # in the right format, so we don't need to do anything about it.)
+            if room_keys['rooms'] == {}:
+                room_keys = {'sessions': {}}
+            else:
+                room_keys = room_keys['rooms'][room_id]
 
         defer.returnValue((200, room_keys))
 
@@ -365,6 +380,40 @@ class RoomKeysVersionServlet(RestServlet):
         )
         defer.returnValue((200, {}))
 
+    @defer.inlineCallbacks
+    def on_PUT(self, request, version):
+        """
+        Update the information about a given version of the user's room_keys backup.
+
+        POST /room_keys/version/12345 HTTP/1.1
+        Content-Type: application/json
+        {
+            "algorithm": "m.megolm_backup.v1",
+            "auth_data": {
+                "public_key": "abcdefg",
+                "signatures": {
+                    "ed25519:something": "hijklmnop"
+                }
+            },
+            "version": "42"
+        }
+
+        HTTP/1.1 200 OK
+        Content-Type: application/json
+        {}
+        """
+        requester = yield self.auth.get_user_by_req(request, allow_guest=False)
+        user_id = requester.user.to_string()
+        info = parse_json_object_from_request(request)
+
+        if version is None:
+            raise SynapseError(400, "No version specified to update", Codes.MISSING_PARAM)
+
+        yield self.e2e_room_keys_handler.update_version(
+            user_id, version, info
+        )
+        defer.returnValue((200, {}))
+
 
 def register_servlets(hs, http_server):
     RoomKeysServlet(hs).register(http_server)
diff --git a/synapse/rest/client/v2_alpha/room_upgrade_rest_servlet.py b/synapse/rest/client/v2_alpha/room_upgrade_rest_servlet.py
new file mode 100644
index 0000000000..e6356101fd
--- /dev/null
+++ b/synapse/rest/client/v2_alpha/room_upgrade_rest_servlet.py
@@ -0,0 +1,89 @@
+# -*- 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.constants import KNOWN_ROOM_VERSIONS
+from synapse.api.errors import Codes, SynapseError
+from synapse.http.servlet import (
+    RestServlet,
+    assert_params_in_dict,
+    parse_json_object_from_request,
+)
+
+from ._base import client_v2_patterns
+
+logger = logging.getLogger(__name__)
+
+
+class RoomUpgradeRestServlet(RestServlet):
+    """Handler for room uprade requests.
+
+    Handles requests of the form:
+
+        POST /_matrix/client/r0/rooms/$roomid/upgrade HTTP/1.1
+        Content-Type: application/json
+
+        {
+            "new_version": "2",
+        }
+
+    Creates a new room and shuts down the old one. Returns the ID of the new room.
+
+    Args:
+        hs (synapse.server.HomeServer):
+    """
+    PATTERNS = client_v2_patterns(
+        # /rooms/$roomid/upgrade
+        "/rooms/(?P<room_id>[^/]*)/upgrade$",
+        v2_alpha=False,
+    )
+
+    def __init__(self, hs):
+        super(RoomUpgradeRestServlet, self).__init__()
+        self._hs = hs
+        self._room_creation_handler = hs.get_room_creation_handler()
+        self._auth = hs.get_auth()
+
+    @defer.inlineCallbacks
+    def on_POST(self, request, room_id):
+        requester = yield self._auth.get_user_by_req(request)
+
+        content = parse_json_object_from_request(request)
+        assert_params_in_dict(content, ("new_version", ))
+        new_version = content["new_version"]
+
+        if new_version not in KNOWN_ROOM_VERSIONS:
+            raise SynapseError(
+                400,
+                "Your homeserver does not support this room version",
+                Codes.UNSUPPORTED_ROOM_VERSION,
+            )
+
+        new_room_id = yield self._room_creation_handler.upgrade_room(
+            requester, room_id, new_version
+        )
+
+        ret = {
+            "replacement_room": new_room_id,
+        }
+
+        defer.returnValue((200, ret))
+
+
+def register_servlets(hs, http_server):
+    RoomUpgradeRestServlet(hs).register(http_server)
diff --git a/synapse/rest/client/v2_alpha/sync.py b/synapse/rest/client/v2_alpha/sync.py
index 0251146722..39d157a44b 100644
--- a/synapse/rest/client/v2_alpha/sync.py
+++ b/synapse/rest/client/v2_alpha/sync.py
@@ -75,7 +75,7 @@ class SyncRestServlet(RestServlet):
     """
 
     PATTERNS = client_v2_patterns("/sync$")
-    ALLOWED_PRESENCE = set(["online", "offline"])
+    ALLOWED_PRESENCE = set(["online", "offline", "unavailable"])
 
     def __init__(self, hs):
         super(SyncRestServlet, self).__init__()