diff options
| -rw-r--r-- | synapse/handlers/auth.py | 14 | ||||
| -rw-r--r-- | synapse/handlers/register.py | 12 | ||||
| -rw-r--r-- | synapse/rest/client/v2_alpha/register.py | 18 |
3 files changed, 38 insertions, 6 deletions
diff --git a/synapse/handlers/auth.py b/synapse/handlers/auth.py index d7233cd0d6..82d458b424 100644 --- a/synapse/handlers/auth.py +++ b/synapse/handlers/auth.py @@ -160,6 +160,20 @@ class AuthHandler(BaseHandler): defer.returnValue(True) defer.returnValue(False) + def get_session_id(self, clientdict): + """ + Gets the session ID for a client given the client dictionary + :param clientdict: The dictionary sent by the client in the request + :return: The string session ID the client sent. If the client did not + send a session ID, returns None. + """ + sid = None + if clientdict and 'auth' in clientdict: + authdict = clientdict['auth'] + if 'session' in authdict: + sid = authdict['session'] + return sid + def set_session_data(self, session_id, key, value): """ Store a key-value pair into the sessions data associated with this diff --git a/synapse/handlers/register.py b/synapse/handlers/register.py index 6ffb8c0da6..f287ee247b 100644 --- a/synapse/handlers/register.py +++ b/synapse/handlers/register.py @@ -47,7 +47,8 @@ class RegistrationHandler(BaseHandler): self._next_generated_user_id = None @defer.inlineCallbacks - def check_username(self, localpart, guest_access_token=None): + def check_username(self, localpart, guest_access_token=None, + assigned_user_id=None): yield run_on_reactor() if urllib.quote(localpart.encode('utf-8')) != localpart: @@ -60,6 +61,15 @@ class RegistrationHandler(BaseHandler): user = UserID(localpart, self.hs.hostname) user_id = user.to_string() + if assigned_user_id: + if user_id == assigned_user_id: + return + else: + raise SynapseError( + 400, + "A different user ID has already been registered for this session", + ) + yield self.check_user_id_not_appservice_exclusive(user_id) users = yield self.store.get_users_by_id_case_insensitive(user_id) diff --git a/synapse/rest/client/v2_alpha/register.py b/synapse/rest/client/v2_alpha/register.py index c440430e25..d32c06c882 100644 --- a/synapse/rest/client/v2_alpha/register.py +++ b/synapse/rest/client/v2_alpha/register.py @@ -122,10 +122,22 @@ class RegisterRestServlet(RestServlet): guest_access_token = body.get("guest_access_token", None) + session_id = self.auth_handler.get_session_id(body) + registered_user_id = None + if session_id: + # if we get a registered user id out of here, it means we previously + # registered a user for this session, so we could just return the + # user here. We carry on and go through the auth checks though, + # for paranoia. + registered_user_id = self.auth_handler.get_session_data( + session_id, "registered_user_id", None + ) + if desired_username is not None: yield self.registration_handler.check_username( desired_username, - guest_access_token=guest_access_token + guest_access_token=guest_access_token, + assigned_user_id=registered_user_id, ) if self.hs.config.enable_registration_captcha: @@ -147,10 +159,6 @@ class RegisterRestServlet(RestServlet): defer.returnValue((401, result)) return - # have we already registered a user for this session - registered_user_id = self.auth_handler.get_session_data( - session_id, "registered_user_id", None - ) if registered_user_id is not None: logger.info( "Already registered user ID %r for this session", |