From 1c4f05db41eab20f8be4ac2dac0f7e86b0b7e1fd Mon Sep 17 00:00:00 2001 From: Richard van der Hoff Date: Mon, 28 Nov 2016 09:55:21 +0000 Subject: Stop putting a time caveat on access tokens The 'time' caveat on the access tokens was something of a lie, since we weren't enforcing it; more pertinently its presence stops us ever adding useful time caveats. Let's move in the right direction by not lying in our caveats. --- synapse/handlers/auth.py | 11 ++++++----- synapse/handlers/register.py | 5 ++--- 2 files changed, 8 insertions(+), 8 deletions(-) (limited to 'synapse/handlers') diff --git a/synapse/handlers/auth.py b/synapse/handlers/auth.py index a2866af431..20aaec36a4 100644 --- a/synapse/handlers/auth.py +++ b/synapse/handlers/auth.py @@ -538,14 +538,15 @@ class AuthHandler(BaseHandler): device_id) defer.returnValue(refresh_token) - def generate_access_token(self, user_id, extra_caveats=None, - duration_in_ms=(60 * 60 * 1000)): + def generate_access_token(self, user_id, extra_caveats=None): extra_caveats = extra_caveats or [] macaroon = self._generate_base_macaroon(user_id) macaroon.add_first_party_caveat("type = access") - now = self.hs.get_clock().time_msec() - expiry = now + duration_in_ms - macaroon.add_first_party_caveat("time < %d" % (expiry,)) + # Include a nonce, to make sure that each login gets a different + # access token. + macaroon.add_first_party_caveat("nonce = %s" % ( + stringutils.random_string_with_symbols(16), + )) for caveat in extra_caveats: macaroon.add_first_party_caveat(caveat) return macaroon.serialize() diff --git a/synapse/handlers/register.py b/synapse/handlers/register.py index 7e119f13b1..886fec8701 100644 --- a/synapse/handlers/register.py +++ b/synapse/handlers/register.py @@ -369,7 +369,7 @@ class RegistrationHandler(BaseHandler): defer.returnValue(data) @defer.inlineCallbacks - def get_or_create_user(self, requester, localpart, displayname, duration_in_ms, + def get_or_create_user(self, requester, localpart, displayname, password_hash=None): """Creates a new user if the user does not exist, else revokes all previous access tokens and generates a new one. @@ -399,8 +399,7 @@ class RegistrationHandler(BaseHandler): user = UserID(localpart, self.hs.hostname) user_id = user.to_string() - token = self.auth_handler().generate_access_token( - user_id, None, duration_in_ms) + token = self.auth_handler().generate_access_token(user_id) if need_register: yield self.store.register( -- cgit 1.4.1