This should make life a lot more convenient for organizations that use
the LDAP integration and have their avatars in LDAP already.
This hasn't been end-to-end tested against LDAP yet, so there may be
some minor revisions, but fundamentally, it works, has automated
tests, and should be easy to maintain.
Fixes#286.
A key part of this is the new helper, get_user_by_delivery_email. Its
verbose name is important for clarity; it should help avoid blind
copy-pasting of get_user (which we'll also want to rename).
Unfortunately, it requires detailed understanding of the context to
figure out which one to use; each is used in about half of call sites.
Another important note is that this PR doesn't migrate get_user calls
in the tests except where not doing so would cause the tests to fail.
This probably deserves a follow-up refactor to avoid bugs here.
Realm object is not json-serializable; store the realm id instead
and retrieve the realm in social_auth_finish using
`Realm.objects.get(id=return_data["realm_id"])`.
The email_list returned has the primary email as the first element.
Testing: The order of the emails in the test was changed to put a
verified email before the primary one. The tests would fail without
this commit's change after the changes in the order of test emails.
These lazy imports save a significant amount of time on Zulip's core
import process, because mock imports pbr, which in turn import
pkgresources, which is in turn incredibly slow to import.
Fixes part of #9953.
Fixes part of #10297.
Use FAKE_LDAP_NUM_USERS which specifies the number of LDAP users
instead of FAKE_LDAP_EXTRA_USERS which specified the number of
extra users.
This uses the MockLDAP class of fakeldap to fake a ldap server, based
on the approach already used in the tests in `test_auth_backends.py`.
Adds the following settings:
- FAKE_LDAP_MODE: Lets user choose out of three preset configurations.
The default mode if someone erases the entry in settings is 'a'. The
fake ldap server is disable if this option is set to None.
- FAKE_LDAP_EXTRA_USERS: Number of extra users in LDAP directory beyond
the default 8.
Fixes#9934.
Generates ldap_dir based on the mode and the no. of extra users.
It supports three modes, 'a', 'b' and 'c', description for which
can be found in prod_settings_templates.py.
The autenticate function now follows the signature of
Django 2.0 https://github.com/django-auth-ldap/
django-auth-ldap/commit/27a8052b26f1d3a43cdbcdfc8e7dc0322580adae
Also AUTH_LDAP_CACHE_GROUPS is depricated in favor of
AUTH_LDAP_CACHE_TIMEOUT.
We need to do a small monkey-patching of python-social-auth to ensure
that it doesn't 500 the request when a user does something funny in
their browser (e.g. using the back button in the auth flow) that is
fundamentally a user error, not a server error.
This was present in the pre-rewrite version of our Social auth
codebase, without clear documentation; I've fixed the explanation
part here.
It's perhaps worth investigating with the core social auth team
whether there's a better way to do this.
It's possible to make GitHub social authentication support letting the
user pick which of their verified email addresses to pick, using the
python-social-auth pipeline feature. We need to add an additional
screen to let the user pick, so we're not adding support for that now,
but this at least migrates this to use the data set of all emails that
have been verified as associated with the user's GitHub account (and
we just assume the user wants their primary email).
This also fixes the inability for very old GitHub accounts (where the
`email` field in the details might be a string the user wanted on
their GitHub profile page) to using GitHub auth to login.
Fixes#9127.
This new implementation model is a lot cleaner and should extend
better to the non-oauth backend supported by python-social-auth (since
we're not relying on monkey-patching `do_auth` in the OAuth backend
base class).
The previous logic made it look like catching ZulipLDAPException on
the authenticate() line was possible, but it isn't, because that
exception is actually being handled inside django-auth-ldap's
authenticate method.
Previously, if you had LDAPAuthBackend enabled, we basically blocked
any other auth backends from working at all, by requiring the user's
login flow include verifying the user's LDAP password.
We still want to enforce that in the case that the account email
matches LDAP_APPEND_DOMAIN, but there's a reasonable corner case:
Having effectively guest users from outside the LDAP domain.
We don't want to allow creating a Zulip-level password for a user
inside the LDAP domain, so we still verify the LDAP password in that
flow, but if the email is allowed to register (due to invite or
whatever) but is outside the LDAP domain for the organization, we
allow it to create an account and set a password.
For the moment, this solution only covers EmailAuthBackend. It's
likely that just extending the list of other backends we check for in
the new conditional on `email_auth_backend` would be correct, but we
haven't done any testing for those cases, and with auth code paths,
it's better to disallow than allow untested code paths.
Fixes#9422.
Previously, if both EmailAuthBackend and LDAPAuthBackend were enabled,
LDAP users could set a password using EmailAuthBackend and continue to
use that password, even if their LDAP account was later deactivated.
That configuration wasn't supported at all before, so this doesn't fix
a pre-existing security issue, but now that we're making that a valid
configuration, we need to cover this case.
The code in maybe_send_to_registration incorrectly used the
`get_realm_from_request` function to fetch the subdomain. This usage
was incorrect in a way that should have been irrelevant, because that
function only differs if there's a logged-in user, and in this code
path, a user is never logged in (it's the code path for logged-out
users trying to sign up).
This this bug could confuse unit tests that might run with a logged-in
client session. This made it possible for several of our GitHub auth
tests to have a totally invalid subdomain value (the root domain).
Fixing that bug in the tests, in turn, let us delete a code path in
the GitHub auth backend logic in `backends.py` that is impossible in
production, and had just been left around for these broken tests.
This is done mainly because this backend has the simplest code path
for calling login_or_register_remote_user, more than because we expect
this case to come up. It'll make it easier to write unit tests for
the `invalid_subdomain` corner case.
In this commit we start to support redirects to urls supplied as a
'next' param for the following two backends:
* GoogleOAuth2 based backend.
* GitHubAuthBackend.
This is necessary for mobile apps to do the right thing when only
RemoteUserBackend is enabled, namely, directly redirect to the
third-party SSO auth site as soon as the user enters the server URL
(no need to display a login form, since it'll be useless).
I probably should have just done this in the original implementation;
there's only a small downside in the form of an extra database query
when trying to authenticate a user who doesn't exist.
Structurally, the main change here is replacing the `clean_username`
function, which would get called when one accessed
self.cleaned_data['username'] with code in the main `clean` function.
This is important because only in `clean` do we have access to the
`realm` object.
Since I recently added full test coverage on this form, we know each
of the major cases have a test; the error messages are unchanged.
This deletes the old mock-covered test for this, which was mostly
useless. We have a much less messy test, which we extend to provide
the same test coverage the old one did.
While the result was the same before, this makes it more obvious.
We created this redundant pair of conditionals in a preceding commit,
in order to match the indentation of an `except` block so as to slice
the diffs extra finely as we're refactoring auth code.
Tim Abbott
Shubham Padia
neiljp (Neil Pilgrim)
Vishnu Ks
Umair Khan
Aditya Bansal
rht