Previously, api_fetch_api_key would not give clear error messages if
password auth was disabled or the user's realm had been deactivated;
additionally, the account disabled error stopped triggering when we
moved the active account check into the auth decorators.
While in theory users should be unable to get a valid session in order
to access these endpoints in the first place, this provides an extra
layer of hardering to prevent a deactivated user with a session from
accessing data via the old-style JSON API.
The security model for deactivated users (and users in deactivated
realms) being unable to access the service is intended to work via two
mechanisms:
* All active user sessions are deleted, and all login code paths
(where a user could get a new session) check whether the user (or
realm) is inactive before authorizing the request, preventing the
user from accessing the website and AJAX endpoints.
* All API code paths (which don't require a session) check whether the
user (and realm) are active.
However, this security model was not implemented correctly. In
particular, the check for whether a user has an active account in the
login process was done inside the login form's validators, which meant
that authentication mechanisms that did not use the login form
(e.g. Google and REMOTE_USER auth) could succeed in granting a session
even with an inactive account. The Zulip homepage would still fail to
load because the code for / includes an API call to Tornado authorized
by the user's token that would fail, but this mechanism could allow an
inactive user to access realm data or users to access data in a
deactivated realm.
This fixes the issue by adding explicit checks for inactive users and
inactive realms in all authentication backends (even those that were
already protected by the login form validator).
Mirror dummy users are already inactive, so we can remove the explicit
code around mirror dummy users.
The following commits add a complete set of tests for Zulip's inactive
user and realm security model.
In a deactivated realm, webhooks would still successfully send
messages, since there was no check for whether the realm was active in
api_key_only_webhook_view.
Long ago, there was work on an experimental integration model where
every user in a realm would have administrative control over all bots,
with the goal of simplifying the process of setting up communally
administered bots for smaller teams. While that new model was never
fully implemented (and thus never setup as an option), an error in
that original implementation meant that the data on all bots in a
realm, including their API keys, was sent to the browsers of users via
the `realm_bots` variable in `page_params`. The data wasn't displayed
in the UI for non-admin users, but was available via e.g. the
javascript console.
This commit updates this behavior to only send sensitive bot data like
API keys to the owner of the bot (and realm admins).
We may in the future implement a model simplifying communally
administered integrations, but if we do that, those bots should be
limited in their capabilities (e.g. only able to send webhook
messages).
This bug has been present since Zulip was released as open source.
The old code for this lookup was unnecessarily complicated because we
were working around Guardian, where the `is_realm_admin` check was
extremely expensive.
Previously we relied on having two matching list of fields for the
get_active_user_dicts_in_realm, one in the actual code and the other
in the caching system. By unifying these lists to have a single
source, we eliminate a class of caching bugs we might otherwise
regularly introduce.
Camo is a caching image proxy, used in Zulip to avoid mixed-content
warnings by proxying HTTP image content over HTTPS. We've been using
it in zulip.com production for years; this change makes it available
in standalone Zulip deployments.
This should save several minutes off the Travis CI `production`
suite's runtime, since previously we were doing the full apt upgrade
process twice, resulting in things like multiple expensive rebuilds of
the initramfs.
Add 'six' to setup-py3k, because it is being used in tools/lister.py.
Add 'typing' to setup-py3k, so that tools/lister.py can be type
annotated in the future.
Since we don't have a stable way to get the Dropbox preview failure
image (and it was sorta a weird setup anyway), it seems best to just
remove the condition.
Previously, the user list would remain filtered after a user hit enter
to start composing a message to a user, leaving them in a state with a
partial user list.
Fixes#360.
Previously we needed to use a specified password when activating a
formerly mirror dummy user, in order for that user to be able to
(re)set their password and login. Now that we have our own password
reset form, this is no longer required.
Previously, if a user had only authenticated via Google auth, they
would be unable to reset their password in order to set one (which is
needed to setup the mobile apps, for example).
Tim Abbott
Eklavya Sharma
Ashish Kumar
Antek Grzanka