From 7c50e3b81655b8d4236d0308cd21506ac35b593c Mon Sep 17 00:00:00 2001 From: Kegsay Date: Wed, 22 Apr 2015 08:38:26 +0100 Subject: [PATCH] Add info on breaking AS API changes --- UPGRADE.rst | 34 ++++++++++++++++++++++++++++++++++ 1 file changed, 34 insertions(+) diff --git a/UPGRADE.rst b/UPGRADE.rst index 87dd6e04a8..ab327a8136 100644 --- a/UPGRADE.rst +++ b/UPGRADE.rst @@ -1,3 +1,37 @@ +Upgrading to v0.x.x +=================== + +Application services have had a breaking API change in this version. + +They can no longer register themselves with a home server using the AS HTTP API. This +decision was made because a compromised application service with free reign to register +any regex in effect grants full read/write access to the home server if a regex of ``.*`` +is used. An attack where a compromised AS re-registers itself with ``.*`` was deemed too +big of a security risk to ignore, and so the ability to register with the HS remotely has +been removed. + +It has been replaced by specifying a list of application service registrations in +``homeserver.yaml``:: + + app_service_config_files: ["registration-01.yaml", "registration-02.yaml"] + +Where ``registration-01.yaml`` looks like:: + + url: # e.g. "https://my.application.service.com" + as_token: + hs_token: + sender_localpart: # This is a new field which denotes the user_id localpart when using the AS token + namespaces: + users: + - exclusive: + regex: # e.g. "@prefix_.*" + aliases: + - exclusive: + regex: + rooms: + - exclusive: + regex: + Upgrading to v0.8.0 ===================