Commit Graph

443 Commits

Author SHA1 Message Date
Anders Kaseorg 1cf63eb5bf python: Whitespace fixes from autopep8.
Generated by autopep8, with the setup.cfg configuration from #14532.
I’m not sure why pycodestyle didn’t already flag these.

Signed-off-by: Anders Kaseorg <anders@zulipchat.com>
2020-04-21 17:58:09 -07:00
Mateusz Mandera 62c0ab3f9d saml: Change which IdPs are returned to get_external_method_dicts.
If queried without a realm, get_external_method_dicts should only
have IdPs that can be used on all realms.
2020-04-21 13:49:34 -07:00
Mateusz Mandera 7ed3c3f9f0 saml: Add setting to require limit_to_subdomains on configured IdPs.
If SAML_REQUIRE_LIMIT_TO_SUBDOMAINS is enabled, the configured IdPs will
be validated and cleaned up when the saml backend is initialized.
settings.py would be a tempting and more natural place to do this
perhaps, but in settings.py we don't do logging and we wouldn't be able
to write a test for it.
2020-04-16 17:04:12 -07:00
Mateusz Mandera 143db68422 saml: Implement limiting of IdP to specified realms.
Through the limit_to_subdomains setting on IdP dicts it's now possible
to limit the IdP to only allow authenticating to the specified realms.

Fixes #13340.
2020-04-16 17:04:08 -07:00
Anders Kaseorg c734bbd95d python: Modernize legacy Python 2 syntax with pyupgrade.
Generated by `pyupgrade --py3-plus --keep-percent-format` on all our
Python code except `zthumbor` and `zulip-ec2-configure-interfaces`,
followed by manual indentation fixes.

Signed-off-by: Anders Kaseorg <anders@zulipchat.com>
2020-04-09 16:43:22 -07:00
Mateusz Mandera e86cfbdbd7 rate_limiter: Store data in request._ratelimits_applied list.
The information used to be stored in a request._ratelimit dict, but
there's no need for that, and a list is a simpler structure, so this
allows us to simplify the plumbing somewhat.
2020-04-08 10:29:18 -07:00
Stefan Weil d2fa058cc1
text: Fix some typos (most of them found and fixed by codespell).
Signed-off-by: Stefan Weil <sw@weilnetz.de>
2020-03-27 17:25:56 -07:00
Mateusz Mandera 8069133f88 rate_limit: Remove __str__ methods of RateLimitedObjects.
These were clunky from the start and are no longer used, as keys are now
used directly for logging purposes.
2020-03-22 18:42:35 -07:00
Mateusz Mandera 4e9f77a6c4 rate_limit: Adjust keys() of some RateLimitedObjects.
type().__name__ is sufficient, and much readable than type(), so it's
better to use the former for keys.
We also make the classes consistent in forming the keys in the format
type(self).__name__:identifier and adjust logger.warning and statsd to
take advantage of that and simply log the key().
2020-03-22 18:42:35 -07:00
Mateusz Mandera 2c6b1fd575 rate_limit: Rename key_fragment() method to key(). 2020-03-22 18:42:35 -07:00
Mateusz Mandera 9c9f8100e7 rate_limit: Add the concept of RateLimiterBackend.
This will allow easily swapping and using various implementations of
rate-limiting, and separate the implementation logic from
RateLimitedObjects.
2020-03-22 18:42:35 -07:00
Mateusz Mandera 85df6201f6 rate_limit: Move functions called by external code to RateLimitedObject. 2020-03-22 18:42:35 -07:00
Dinesh 3de646d2cf auth: Improve GitHub auth with multiple verified emails.
The previous model for GitHub authentication was as follows:

* If the user has only one verified email address, we'll generally just log them in to that account
* If the user has multiple verified email addresses, we will always
  prompt them to pick which one to use, with the one registered as
  "primary" in GitHub listed at the top.

This change fixes the situation for users going through a "login" flow
(not registration) where exactly one of the emails has an account in
the Zulip oragnization -- they should just be logged in.

Fixes part of #12638.
2020-03-22 17:31:01 -07:00
Mateusz Mandera f5e95c4fc1 requirements: Bump python-social-auth version.
We had a bunch of ugly hacks to monkey patch things due to upstream
being temporarily unmaintained and not merging PRs. Now the project is
active again and the fixes have been merged and included in the latest
version - so we clean up all that code.
2020-03-18 12:14:31 -07:00
Steve Howell 62fb3ad801 refactor: Move validate_email_not_already_in_realm.
We move this to email_validation.py.
2020-03-06 11:53:22 -08:00
Steve Howell 4f5b07a7e6 refactor: Extract zerver/lib/email_validation.py. 2020-03-06 11:53:22 -08:00
Steve Howell 57f1aa722c refactor: Rename validate_email_for_realm.
Now called:

    validate_email_not_already_in_realm

We have a separate validation function that
makes sure that the email fits into a realm's
domain scheme, and we want to avoid naming
confusion here.
2020-03-06 11:53:22 -08:00
Mateusz Mandera e506dbcdad auth: Monkey patch a fix for Github deprecation notice spam.
This is a way to monkey-patch a fix for
https://github.com/python-social-auth/social-core/issues/430
Changes from this commit should be reverted once the issue is fixed
upstream.
2020-03-03 15:51:40 -08:00
Mateusz Mandera efb3065158 social_auth: Take user to find_account if invalid subdomain is given.
This allows to also clean up some code that's not really useful.
2020-02-27 17:27:55 -08:00
Mateusz Mandera 98a7cd85a2 auth: Fix return type annotations on social auth pipeline functions. 2020-02-27 17:27:55 -08:00
Mateusz Mandera 98ae2fb940 auth: Remove redundant realm argument to finish_desktop_flow.
finish_desktop_flow is called with the assumption that the request
successfully proved control over the user_profile and generates a
special link to log into the user_profile account. There's no reason to
pass the realm param, as user_profile.realm can be assumed.
2020-02-24 12:39:48 -08:00
Mateusz Mandera bf0f1274fa saml: Make the bad idp param KeyError log message more verbose.
Original idea was that KeyError was only going to happen there in case
of user passing bad input params to the endpoint, so logging a generic
message seemed sufficient. But this can also happen in case of
misconfiguration, so it's worth logging more info as it may help in
debugging the configuration.
2020-02-20 14:49:27 -08:00
Mateusz Mandera bde495db87 registration: Add support for mobile and desktop flows.
This makes it possible to create a Zulip account from the mobile or
desktop apps and have the end result be that the user is logged in on
their mobile device.

We may need small changes in the desktop and/or mobile apps to support
this.

Closes #10859.
2020-02-12 11:22:16 -08:00
Dinesh 4304d5f8db auth: Add support for GitLab authentication.
With some tweaks by tabbott to the documentation and comments.

Fixes #13694.
2020-02-11 13:54:17 -08:00
Mateusz Mandera bc062e1c4d auth: Give all backend authenticate() optional request argument.
This is required for our migration to Django 2.2. authenticate()
definitions need to have that starting with Django 2.1.
rate_limit_auth needs to be adjusted to expect the request in the first
positional argument instead of a kwarg.
2020-02-04 12:46:53 -08:00
Mateusz Mandera 7b34853328 rate_limiter: Rename authenticate domain to authenticate_by_username.
This prepares for adding authenticate_by_ip_address.
2020-02-02 19:15:13 -08:00
Mateusz Mandera 5f94ea3d54 auth: Rate limit username+password authenticate() calls.
This applies rate limiting (through a decorator) of authenticate()
functions in the Email and LDAP backends - because those are the ones
where we check user's password.
The limiting is based on the username that the authentication is
attempted for - more than X attempts in Y minutes to a username is not
permitted.

If the limit is exceeded, RateLimited exception will be raised - this
can be either handled in a custom way by the code that calls
authenticate(), or it will be handled by RateLimitMiddleware and return
a json_error as the response.
2020-02-02 19:15:13 -08:00
Mateusz Mandera d5786ee67a auth: Ensure only one of mobile and desktop otps in validate_otp_params.
validate_otp_params needs to be moved to backends.py, because as of this
commit it'll be used both there and in views.auth - and import from
views.auth to backends.py causes circular import issue.
2020-02-02 19:14:40 -08:00
Mateusz Mandera 92c16996fc redis_utils: Require key_format argument in get_dict_from_redis. 2020-01-26 21:40:15 -08:00
Mateusz Mandera 859bde482d auth: Implement server side of desktop_flow_otp. 2020-01-26 21:40:15 -08:00
Mateusz Mandera af2c4a9735 redis: Extract put_dict_in_redis and get_dict_from_redis helpers. 2020-01-23 16:24:07 -08:00
Mateusz Mandera 27b9eafcac social_auth: Set is_signup=False if the user is already signed up.
Because of how login_or_register_remote_user code is structured, this
doesn't change how the flow will go, but it's not a clean use of
login_or_register_remote_user to call it with is_signup=True if sign up
shouldn't actually happen - and may be fragile when refactoring
login_or_register_remote_user.
2020-01-23 16:24:07 -08:00
Tim Abbott 4562949f43 default stream groups: Fix buggy LDAP behavior.
With LDAP authentication, we don't currently have a good way to
support the default stream groups feature.

The old behavior was just to assume a user select every default stream
group, which seems wrong; since we didn't prompt the user about these,
we should just ignore the feature.
2020-01-14 14:50:18 -08:00
Mateusz Mandera e559447f83 ldap: Improve logging.
Our ldap integration is quite sensitive to misconfigurations, so more
logging is better than less to help debug those issues.
Despite the following docstring on ZulipLDAPException:

"Since this inherits from _LDAPUser.AuthenticationFailed, these will
be caught and logged at debug level inside django-auth-ldap's
authenticate()"

We weren't actually logging anything, because debug level messages were
ignored due to our general logging settings. It is however desirable to
log these errors, as they can prove useful in debugging configuration
problems. The django_auth_ldap logger can get fairly spammy on debug
level, so we delegate ldap logging to a separate file
/var/log/zulip/ldap.log to avoid spamming server.log too much.
2019-12-28 10:47:08 -08:00
Mateusz Mandera a180f01e6b ldap: Use a cleaner super().authenticate() call in ZulipLDAPAuthBackend. 2019-12-28 10:47:08 -08:00
Tim Abbott 02169c48cf ldap: Fix bad interaction between EMAIL_ADDRESS_VISIBILITY and LDAP sync.
A block of LDAP integration code related to data synchronization did
not correctly handle EMAIL_ADDRESS_VISIBILITY_ADMINS, as it was
accessing .email, not .delivery_email, both for logging and doing the
mapping between email addresses and LDAP users.

Fixes #13539.
2019-12-15 22:59:02 -08:00
Mateusz Mandera 6dbd2b5fc3 auth: Merge RemoteUserBackend into external_authentication_methods.
We register ZulipRemoteUserBackend as an external_authentication_method
to make it show up in the corresponding field in the /server_settings
endpoint.

This also allows rendering its login button together with
Google/Github/etc. leading to us being able to get rid of some of the
code that was handling it as a special case - the js code for plumbing
the "next" value and the special {% if only_sso %} block in login.html.
An additional consequence of the login.html change is that now the
backend will have it button rendered even if it isn't the only backend
enabled on the server.
2019-12-10 20:16:21 +01:00
Mateusz Mandera a842968090 auth: Expand on the external_auth_method abstraction.
This commit builds a more complete concept of an "external
authentication method". Our social backends become a special case of an
external authentication method - but these changes don't change the
actual behavior of social backends, they allow having other backends
(that come from python-social-auth and don't use the social backend
pipeline) share useful code that so far only serviced social backends.
Most importantly, this allows having other backends show up in the
external_authentication_methods field of the /server_settings endpoint,
as well as rendering buttons through the same mechanism as we already
did for social backends.

This moves the creation of dictonaries describing the backend for the
API and button rendering code away into a method, that each backend in
this category is responsible for defining.

To register a backend as an external_authentication_method, it should
subclass ExternalAuthMethod and define its dict_representation
classmethod, and finally use the external_auth_method class decorator to
get added to the EXTERNAL_AUTH_METHODS list.
2019-12-10 20:16:21 +01:00
Mateusz Mandera 67b6179df2 ldap: Fix error while updating a user registered in multiple realms.
Previously, the LDAP code for syncing user data was not
multiple-realm-aware, resulting in errors trying to sync data for an
LDAP user present in multiple realms.

Tweaked by tabbott to add some extended comments.

Fixes #11520.
2019-11-21 11:13:31 -08:00
Mateusz Mandera 06c2161f7e auth: Use zxcvbn to ensure password strength on server side.
For a long time, we've been only doing the zxcvbn password strength
checks on the browser, which is helpful, but means users could through
hackery (or a bug in the frontend validation code) manage to set a
too-weak password.  We fix this by running our password strength
validation on the backend as well, using python-zxcvbn.

In theory, a bug in python-zxcvbn could result in it producing a
different opinion than the frontend version; if so, it'd be a pretty
bad bug in the library, and hopefully we'd hear about it from users,
report upstream, and get it fixed that way. Alternatively, we can
switch to shelling out to node like we do for KaTeX.

Fixes #6880.
2019-11-21 10:23:37 -08:00
Mateusz Mandera 0c2cc41d2e CVE-2019-18933: Fix insecure account creation via social authentication.
A bug in Zulip's new user signup process meant that users who
registered their account using social authentication (e.g. GitHub or
Google SSO) in an organization that also allows password
authentication could have their personal API key stolen by an
unprivileged attacker, allowing nearly full access to the user's
account.

Zulip versions between 1.7.0 and 2.0.6 were affected.

This commit fixes the original bug and also contains a database
migration to fix any users with corrupt `password` fields in the
database as a result of the bug.

Out of an abundance of caution (and to protect the users of any
installations that delay applying this commit), the migration also
resets the API keys of any users where Zulip's logs cannot prove the
user's API key was not previously stolen via this bug.  Resetting
those API keys will be inconvenient for users:

* Users of the Zulip mobile and terminal apps whose API keys are reset
  will be logged out and need to login again.
* Users using their personal API keys for any other reason will need
  to re-fetch their personal API key.

We discovered this bug internally and don't believe it was disclosed
prior to our publishing it through this commit.  Because the algorithm
for determining which users might have been affected is very
conservative, many users who were never at risk will have their API
keys reset by this migration.

To avoid this on self-hosted installations that have always used
e.g. LDAP authentication, we skip resetting API keys on installations
that don't have password authentication enabled.  System
administrators on installations that used to have email authentication
enabled, but no longer do, should temporarily enable EmailAuthBackend
before applying this migration.

The migration also records which users had their passwords or API keys
reset in the usual RealmAuditLog table.
2019-11-21 10:23:37 -08:00
Mateusz Mandera ed40d37e44 ldap: Fix realm_creation=True registration flow.
When creating realm with the ldap backend, the registration flow didn't
properly handle some things - the user wouldn't be set as realm admin,
initial subscriptions and messages weren't created, and the redirect
wasn't happening properly in the case of subdomains.
2019-11-08 14:01:45 -08:00
David Rosa b041948132 docs: Reorganize auth and migrations subsystems.
- Moves "Authentication in the development environment" from subsystems
to "development/authentication.md".
- Moves "Renumbering migrations" to a section within "Schema migrations".
2019-11-07 09:42:36 -08:00
Mateusz Mandera b05a0d0177 social_backends: If no icon is to be displayed, set display_icon to None. 2019-11-05 15:44:07 -08:00
Mateusz Mandera 8edbbe7b3c ldap: Make email search config obligatory without LDAP_APPEND_DOMAIN.
Having to account everywhere for both cases of having and not
having email search configured makes things needlessly complicated.
It's better to make the setting obligatory in configurations other than
LDAP_APPEND_DOMAIN.
2019-11-05 15:25:58 -08:00
Mateusz Mandera 9f330fba8e ldap: Move ZulipLDAPAuthBackendBase.get_or_build_user definition.
This function is inherited by ZulipLDAPUserPopulator and overriden by
ZulipLDAPAuthBackend, so it's more clear to have it simply defined in
ZulipLDAPUserPopulator directly.
2019-11-05 15:25:58 -08:00
Mateusz Mandera 5aded51b73 register: Pre-populate Name in social backend flow.
By adding some additional plumbing (through PreregistrationUser) of the
full_name and an additional full_name_validated option, we
pre-populate the Full Name field in the registration form when coming
through a social backend (google/github/saml/etc.) and potentially skip
the registration form (if the user would have nothing to do there other
than clicking the Confirm button) and just create the account and log
the user in.
2019-11-03 16:15:48 -08:00
Mateusz Mandera a62d084247 social_backends: Rename display_logo to display_icon. 2019-11-03 15:54:05 -08:00
Mateusz Mandera 5a39e70bce social_backends: Remove sort_order from social backend dicts.
These are returned through the API, at the /server_settings
endpoint. It's better to just return the list of dicts with a guarantee
of being sorted in the correct order, than to clutter things with the
sort_order field.
2019-11-03 15:51:49 -08:00
Mateusz Mandera 9d14b50186 auth: Support not using an icon when rendering social login buttons.
Since we were using a placeholder emote for SAML, we change the
defaults to no icon now that it's possible.
2019-10-28 15:14:57 -07:00
Mateusz Mandera b870816a75 saml: Sanity-check configuration in both login and signup codepaths. 2019-10-28 15:11:19 -07:00
Mateusz Mandera 892d25faa1 auth: Change SAML login url scheme, enabling multiple IdP support.
The url scheme is now /accounts/login/social/saml/{idp_name} to initiate
login using the IdP configured under "idp_name" name.

display_name and display_logo (the name and icon to show on the "Log in
with" button) can be customized by adding the apprioprate settings in
the configured IdP dictionaries.
2019-10-28 15:09:42 -07:00
Mateusz Mandera 28dd1b34f2 auth: Refactor social login rendering.
login_context now gets the social_backends list through
get_social_backend_dicts and we  move display_logo customization
to backend class definition.

This prepares for easily adding multiple IdP support in SAML
authentication - there will be a social_backend dict for each configured
IdP, also allowing display_name and icon customization per IdP.
2019-10-28 15:06:26 -07:00
Mateusz Mandera 9532e99800 saml: Give SAMLAuthBackend highest sort_order. 2019-10-28 15:06:26 -07:00
Mateusz Mandera 8c065d1fcd ldap: Ensure django_to_ldap_username returns username that is in ldap.
This changes the way django_to_ldap_username works to make sure the ldap
username it returns actually has a corresponding ldap entry and raise an
exception if that's not possible. It seems to be a more sound approach
than just having it return its best guess - which was the case so far.
Now there is a guarantee that what it returns is the username of an
actual ldap user.

This allows communicating to the registration flow when the email being
registered doesn't belong to ldap, which then will proceed to register
it via the normal email backend flow - finally fixing the bug where you
couldn't register a non-ldap email even with the email backend enabled.

These changes to the behavior of django_to_ldap_username require small
refactorings in a couple of other functions that call it, as well as
adapting some tests to these changes. Finally, additional tests are
added for the above-mentioned registration flow behavior and some
related corner-cases.
2019-10-25 12:14:51 -07:00
Mateusz Mandera 68f4cd1e94 ldap: Extract ldap user -> django username mapping logic to a function.
Fixes #11878

Instead of a confusing mix of django_auth_backed applying
ldap_to_django_username in its internals for one part of the
translation, and then custom logic for grabbing it from the email
attribute of the ldapuser in ZulipLDAPAuthBackend.get_or_build_user
for the second part of the translation,
we put all the logic in a single function user_email_from_ldapuser
which will be used by get_or_build of both ZulipLDAPUserPopulator and
ZulipLDAPAuthBackend.

This, building on the previous commits with the email search feature,
fixes the ldap sync bug from issue #11878.

If we can get upstream django-auth-ldap to merge
https://github.com/django-auth-ldap/django-auth-ldap/pull/154, we'll
be able to go back to using the version of ldap_to_django_username
that accepts a _LDAPUser object.
2019-10-22 16:02:23 -07:00
Mateusz Mandera 3699fe28f8 ldap: Use email search in django_to_ldap_username.
With this, django_to_ldap_username can take an email and find the ldap
username of the ldap user who has this email - if email search is
configured.

This allows successful authenticate() with ldap email and ldap password,
instead of ldap username. This is especially useful because when
a user wants to fetch their api key, the server attempts authenticate
with user_profile.email - and this used to fail if the user was an ldap
user (because the ldap username was required to authenticate
succesfully). See issue #9277.
2019-10-22 15:57:52 -07:00
Mateusz Mandera fea4d0b2be ldap: Do a proper search for email in email_belongs_to_ldap.
This fixes a collection of bugs surrounding LDAP configurations A and
C (i.e. LDAP_APPEND_DOMAIN=None) with EmailAuthBackend also enabled.

The core problem was that our desired security model in that setting
of requiring LDAP authentication for accounts managed by LDAP was not
implementable without a way to

Now admins can configure an LDAPSearch query that will find if there
are users in LDAP that have the email address and
email_belongs_to_ldap() will take advantage of that - no longer
returning True in response to all requests and thus blocking email
backend authentication.

In the documentation, we describe this as mandatory configuration for
users (and likely will make it so soon in the code) because the
failure modes for this not being configured are confusing.

But making that change is pending work to improve the relevant error
messages.

Fixes #11715.
2019-10-22 15:53:39 -07:00
Mateusz Mandera 4dc3ed36c3 auth: Add initial SAML authentication support.
There are a few outstanding issues that we expect to resolve beforce
including this in a release, but this is good checkpoint to merge.

This PR is a collaboration with Tim Abbott.

Fixes #716.
2019-10-10 15:44:34 -07:00
Mateusz Mandera 82f923c27a social auth: Validate email in backends without get_verified_emails.
If the social backend doesn't have get_verified_emails emails, and we
simply grab kwargs["details"].get("email") for the email, we should
still validate it is correct.
Needed for SAML. This will get covered by tests in upcoming commits that
add SAML support.
2019-10-10 14:53:29 -07:00
Mateusz Mandera 7171a0a842 social_auth: Construct fullname from first and last name if needed.
Needed for SAML. This will get covered by tests in upcoming commits that
add SAML support.
2019-10-10 14:53:29 -07:00
Mateusz Mandera 4166c901ef do_update_user_custom_profile_data: Rename to ..._if_changed.
This adds clarity to the fact that the function no longer does
anything if the field values haven't changed.
2019-10-01 13:52:43 -07:00
Mateusz Mandera 371a7768ad backends: Extract useful is_user_active function.
This logic can be useful elsewhere, for checking whether user_profile is
active.
2019-09-20 17:58:10 -07:00
Mateusz Mandera 935702b6ec auth: Rename any_oauth_backend_enabled to any_social_backend_enabled.
any_oauth_backend_enabled is all about whether we will have extra
buttons on the login/register pages for logging in with some non-native
backends (like Github, Google etc.). And this isn't about specifically
oauth backends, but generally "social" backends - that may not rely
specifically rely on Oauth. This will have more concrete relevance when
SAML authentication is added - which will be a "social" backend,
requiring an additional button, but not Oauth-based.
2019-09-19 12:35:27 -07:00
Mateusz Mandera 050f814e47 auth: Clean up SOCIAL_AUTH_BACKENDS / OAUTH_BACKEND_NAMES lists.
SOCIAL_AUTH_BACKEND / OAUTH_BACKEND_NAMES are currently the same
backends. All Oauth backends are social, and all social are oauth.
So we get rid of OAUTH_BACKEND_NAMES and use only SOCIAL_AUTH_BACKENDS.
2019-09-19 12:35:27 -07:00
Tim Abbott 7e75f987df ldap: Fix logging of warning for deactivated users.
Also cleans up the interface between the management command and the
LDAP backends code to not guess/recompute under what circumstances
what should be logged.

Co-authored-by: mateuszmandera <mateusz.mandera@protonmail.com>
2019-09-08 09:35:23 -07:00
Tim Abbott d1a2784d52 ldap: Fix attempting to sync data for deactivated users.
The order of operations for our LDAP synchronization code wasn't
correct: We would run the code to sync avatars (etc.) even for
deactivated users.

Thanks to niels for the report.

Co-authored-by: mateuszmandera <mateusz.mandera@protonmail.com>
2019-09-08 09:35:23 -07:00
Mateusz Mandera 2ce2024bd7 ldap: Fix unintended user deactivation in case of connection failure.
Fixes #13130.

django_auth_ldap doesn't give any other way of detecting that LDAPError
happened other than catching the signal it emits - so we have to
register a receiver. In the receiver we just raise our own Exception
which will properly propagate without being silenced by
django_auth_ldap. This will stop execution before the user gets
deactivated.
2019-09-05 11:59:20 -07:00
Anders Kaseorg 9650188dfe backends: Clean up type ignores.
Signed-off-by: Anders Kaseorg <anders@zulipchat.com>
2019-08-09 17:42:33 -07:00
Alexandra Ciobica f109dcce9c auth: Add logic for avatars to the GitHub auth email selection page.
For the emails that are associated to an existing account in an
organisation, the avatars will be displayed in the email selection
page.  This includes avatar data in what is passed to the page.

Added `avatar_urls` to the context in `test_templates.py`.
2019-08-08 11:12:51 -07:00
Alexandra Ciobica d4ccd73ae3 auth: Remove `@users.noreply.github.com` from the email selection list.
Apparently GitHub changed the email address for these; we need to
update our code accordingly.

One cannot receive emails on the username@users.noreply.github.com, so
if someone tries creating an account with this email address, that
person would not be able to verify the account.
2019-08-08 11:12:51 -07:00
neiljp (Neil Pilgrim) 5ab64daecc mypy: Remove type ignore by defining ProfileDataElement using TypedDict. 2019-08-06 23:24:56 -07:00
Harshit Bansal bf14a0af4d auth: Migrate google auth to python-social-auth.
This replaces the two custom Google authentication backends originally
written in 2012 with using the shared python-social-auth codebase that
we already use for the GitHub authentication backend.  These are:

* GoogleMobileOauth2Backend, the ancient code path for mobile
  authentication last used by the EOL original Zulip Android app.

* The `finish_google_oauth2` code path in zerver/views/auth.py, which
  was the webapp (and modern mobile app) Google authentication code
  path.

This change doesn't fix any known bugs; its main benefit is that we
get to remove hundreds of lines of security-sensitive semi-duplicated
code, replacing it with a widely trusted, high quality third-party
library.
2019-07-21 20:51:34 -07:00
vinitS101 04f3fce761 ldap: Fix LDAP avatar synchronization to check if avatar has changed.
When "manage.py sync_ldap_user_data" is run, user avatars are now only
updated if they have changed in LDAP.

Fixes #12381.
2019-07-02 17:52:48 -07:00
Shubham Padia 80a3651cf3 auth: Let user choose emails in GitHub auth.
Previously, our Github authentication backend just used the user's
primary email address associated with GitHub, which was a reasonable
default, but quite annoying for users who have several email addresses
associated with their GitHub account.

We fix this, by adding a new screen where users can select which of
their (verified) GitHub email addresses to use for authentication.

This is implemented using the "partial" feature of the
python-social-auth pipeline system.

Each email is displayed as a button. Clicking on that button chooses
the email. The email value is stored in a hidden input above the
button. The `primary_email` is displayed on top followed by
`verified_non_primary_emails`. Backend name is also passed as
`backend` to the template, which in our case is GitHub.

Fixes #9876.
2019-06-23 21:27:04 -07:00
vinitS101 a6eda858d0 ldap: Fix avatar sync not working with the S3 backend.
This fixes an issue that caused LDAP synchronization to fail for
avatars.  The problem occurred due to the lack of a 'name' attribute
on the BytesIO object that we pass to the upload backend (which is
only used in the S3 backend for computing Content-Type).

Fixes #12411.
2019-06-13 15:12:13 -07:00
Anders Kaseorg 802d3dbbf4 authenticate: Use keyword-only parameters.
Since positional arguments are interpreted differently by different
backends in Django's authentication backend system, it’s safer to
disallow them.

This had been the motivation for previously declaring the parameters
with default values when we were on Python 2, but that was not super
effective because Python has no rule against positional default
arguments and that convention for our authentication backends was
solely enforced by code review.

Signed-off-by: Anders Kaseorg <anders@zulipchat.com>
2019-05-27 23:49:54 -07:00
Anders Kaseorg 082f23a659 authenticate: Remove default values for required parameters.
It is now the caller’s responsibility to check that realm is not None.

Signed-off-by: Anders Kaseorg <anders@zulipchat.com>
2019-05-27 23:47:22 -07:00
Anders Kaseorg 725582850f login_or_register_remote_user: Remove unused invalid_subdomain parameter.
Signed-off-by: Anders Kaseorg <anders@zulipchat.com>
2019-05-27 23:47:22 -07:00
Anders Kaseorg 9efda71a4b get_realm: raise DoesNotExist instead of returning None.
This makes the implementation of `get_realm` consistent with its
declared return type of `Realm` rather than `Optional[Realm]`.

Fixes #12263.

Signed-off-by: Anders Kaseorg <anders@zulipchat.com>
2019-05-06 21:58:16 -07:00
Shubham Padia 7743fa5297 auth: Redirect deactivated user to /login when attempting social login. (#12130) 2019-04-17 12:28:57 -07:00
Shubham Padia 3c09f226a4 auth: Redirect deactivated users with error for social auth backend.
Fixes #11937.

Also extracts the error message for a deactivated account to
`DEACTIVATED_ACCOUNT_ERROR`.
2019-04-13 19:58:15 -07:00
Tim Abbott b4d47b129d backends: Further optimize auth_enabled_helper.
This avoids repeatedly calling a Django auth function that takes a few
hundred microseconds to run in auth_enabled_helper, which itself is
currently called 14 times in every request to pages using
common_context.
2019-03-17 15:14:06 -07:00
Harshit Bansal 262eb42b77 auth: Reverse the `sort_order` parameter's semantics.
This will make sure that if a backend doesn't specify a values for
`sort_order` parameter then it will sorted to the bottom not at the
top.
2019-03-13 14:44:57 -07:00
Harshit Bansal a6e523f9e4 ldap: Ensure email is valid for realm before registering.
Previously, the LDAP authentication model ignored the realm-level
settings for who can join a realm.  This was sort of reasonable at the
time, because the original LDAP auth was an SSO solution that didn't
allow multiple realms, and so one could fully configure authentication
settings on the LDAP side.  But now that we allow multiple realms with
the LDAP backend, one could easily imagine wanting different
restrictions on them, and so it makes sense to add this enforcement.
2019-03-12 11:09:18 -07:00
Harshit Bansal 94649f58f2 tests: Refactor `query_ldap()` and add complete test coverage. 2019-03-09 22:12:51 -08:00
Harshit Bansal b519e6594e management: Move `query_ldap` function to `zproject/backends.py`.
This will make it simpler to organize and unit-test all of our
authentication backend code.
2019-03-09 22:12:36 -08:00
Tim Abbott 873aca4a82 auth: Add detailed comments for auth subsystem.
Now that we've more or less stabilized our authentication/registration
subsystem how we want it, it seems worth adding proper documentation
for this.

Fixes #7619.
2019-03-09 22:08:13 -08:00
Harshit Bansal 4a9bd89f47 ldap: Continue syncing other fields even if a field is missing.
Earlier the behavior was to raise an exception thereby stopping the
whole sync. Now we log an error message and skip the field. Also
fixes the `query_ldap` command to report missing fields without
error.

Fixes: #11780.
2019-03-05 16:19:27 -08:00
Harshit Bansal 3610aaece3 refactor: De-duplicate login button code in portico templates. 2019-03-05 14:02:12 -08:00
Harshit Bansal 216b7b0a19 auth: Remove `invalid_subdomain` restriction from LDAP backend.
Fixes: #11692.
2019-03-04 11:53:53 -08:00
Vishnu Ks 868a763cec auth2: Don't use session for passing multiuse invite key.
For Google auth, the multiuse invite key should be stored in the
csrf_state sent to google along with other values like is_signup,
mobile_flow_otp.

For social auth, the multiuse invite key should be passed as params to
the social-auth backend. The passing of the key is handled by
social_auth pipeline and made available to us when the auth is
completed.
2019-02-12 15:51:11 -08:00
Harshit Bansal 1a5e07e0f9 ldap: Add ability to automatically sync custom profile fields. 2019-02-05 10:25:50 -08:00
Anders Kaseorg f5197518a9 analytics/zilencer/zproject: Remove unused imports.
Signed-off-by: Anders Kaseorg <andersk@mit.edu>
2019-02-02 17:31:45 -08:00
Harshit Bansal fcf2ffe8db registration: Populate LDAP users using invitation information.
Fixes: #11212.
2019-01-17 10:16:48 -08:00
Harshit Bansal 4ec82b28f7 auth: Convert `get_mapped_name()` in LDAP backend to a class method. 2019-01-16 08:50:21 -08:00
Harshit Bansal 71761bc2da ldap: Add a setting to automatically deactivate non_matching users.
Fixes: #11151.
2019-01-13 19:04:09 -08:00
Harshit Bansal 6797dea6c3 auth: Add tests for `ZulipLDAPUserPopulator`.
Fixes: #11041.
2019-01-13 18:51:50 -08:00
Harshit Bansal 05ad6a357b ldap: Add support for two field mapping of full name.
Tests for `sync_full_name_from_ldap()` are pending and will be added
in a separate commit.

Fixes: #11039.
2019-01-13 18:51:50 -08:00
Harshit Bansal 348f370b79 management: Extract `sync_user_from_ldap()`. 2019-01-13 18:51:50 -08:00
Harshit Bansal 6e20a9a419 ldap: Extract `init_fakeldap()`. 2019-01-13 18:51:50 -08:00
Harshit Bansal a55e101bef ldap: Allow users to login with just LDAP username.
We had an inconsistent behavior when `LDAP_APPEND_DOMAIN` was set
in that we allowed user to enter username instead of his email in
the auth form but later the workflow failed due to a small bug.

Fixes: #10917.
2019-01-09 10:53:12 -08:00
Tim Abbott f51ca9f398 backends: Don't try to process userAccountControl unless configured.
This fixes an exception in manage.py sync_ldap_user_data if
userAccountControl is not setup on the system yet.
2018-12-30 11:05:14 -08:00
Tim Abbott 331984c322 ldap: Cast account_control_values to int.
This value will usually apparently come through the LDAP API as a
string, apparently.
2018-12-29 16:35:13 -08:00
Tim Abbott 772026e66b ldap: Don't crash if some users don't have a thumbnailPhoto.
It's normal for an LDAP database to have some users with a
thumbnailPhoto field set and others without one, so we should support
this configuration.
2018-12-29 16:32:16 -08:00
Tim Abbott 0510424e1c auth: Remove some now-unused auth_backend_enabled helpers.
These were causing coverage errors, and in any case are now useless.
2018-12-18 16:51:57 -08:00
seresheim 49dbd85a89 auth: Add support for Azure Active Directory authentication.
This takes advantage of all of our work on making the
python-social-auth integration reusable for other authentication
backends.
2018-12-18 16:39:03 -08:00
Tim Abbott 626e191201 ldap: Add support for automatic user deactivation/reactivation.
As part of this, extend our documentation on synchronizing data from
Active Directory.
2018-12-13 16:24:15 -08:00
Tim Abbott 0a5221a819 ldap: Extract dev_ldap_directory.py.
This gets what is fundamentally unit testing code out of backends.py.
2018-12-13 16:24:15 -08:00
Tim Abbott 5dd646f33f ldap: Add support for syncing avatar images from LDAP.
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.
2018-12-13 13:39:22 -08:00
Tim Abbott 8a11c94a2d fakeldap: Add thumbnailPhoto/jpegPhoto for testing avatar syncing. 2018-12-12 11:23:33 -08:00
Tim Abbott b5e65a2ea0 fakeldap: Move fakeldap configuration into ZulipLDAPAuthBackendBase.
This allows us to use this for testing the ZulipLDAPUserPopulator code
as well.
2018-12-12 11:07:05 -08:00
Tim Abbott 33fb750275 fakeldap: Invert order of loop/conditionals.
This is about to save us some work when we add image attributes.
2018-12-12 10:46:54 -08:00
Tim Abbott e603237010 email: Convert accounts code to use delivery_email.
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.
2018-12-06 16:21:38 -08:00
Shubham Padia 79e590f50f auth: Store realm id in return_data of social_associate_user_helper.
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"])`.
2018-11-16 12:16:21 -08:00
Shubham Padia d95364b94f auth: GitHubAuthBackend.get_verified_emails returns user's all emails.
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.
2018-11-16 12:16:21 -08:00
neiljp (Neil Pilgrim) c3cd3e94c1 mypy: Add Optional & check in zproject/backends.py; remove from mypy.ini. 2018-10-29 12:53:16 -07:00
Tim Abbott a34b79a3f4 python: Avoid importing the mock module in production.
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.
2018-10-17 15:28:48 -07:00
Tim Abbott cc066032f6 auth: Add invalid default value for auth_backend_name.
This makes mypy happy with the new logic we just added.
2018-10-11 17:35:07 -07:00
Tim Abbott 20a13b42e6 auth: Automatically maintain list of OAuth backends.
Here, we take advantage of the useful issubclass function to determine
which of our social backends are based on OAuth2.
2018-10-11 17:11:04 -07:00
Tim Abbott 1244a5077e auth: Automate social auth backends in AUTH_BACKEND_NAME_MAP.
This saves a line of manual code every time we add a new social auth
backend.
2018-10-11 17:11:03 -07:00
Shubham Padia 69bfa8c432 auth: Use different defaults for name and email for fakeldap.
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.
2018-08-31 17:07:02 +05:30
Tim Abbott 3cfb2000cc ldap: Improve error message for username/LDAP domain mismatches. 2018-08-20 10:39:34 -07:00
Shubham Padia 30c3d55cb3 auth: Add fakeldap based authentication method in development environment.
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.
2018-08-09 13:51:38 -07:00
Shubham Padia d409555b2f auth: Add function for generating test ldap_dir to backends.py.
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.
2018-08-09 13:46:44 -07:00
Tim Abbott 65aa3d0848 backends: Import AppIdentityError inside GoogleMobileOauth2Backend.
We only need to import this for GoogleMobileOauth2Backend, so the same
performance reasoning for 271c7fbe65
applies here as well.
2018-08-08 14:19:42 -07:00
Tim Abbott 271c7fbe65 backends: Import googleapiclient lazily.
This saves about 30-50ms in the startup time of a Zulip manage.py
command.
2018-08-08 09:21:14 -07:00
Vishnu Ks c0ed2283d3 requirements: Upgrade django-auth-ldap to 1.6.0.
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.
2018-08-02 15:53:11 -07:00
Tim Abbott 5a99118b3e auth: Restore a minimal SocialAuthMixin.
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.
2018-07-03 18:53:59 +02:00
Tim Abbott c9b0c0add4 github: Refactor email extraction to use the full emails data set.
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.
2018-07-03 18:35:29 +02:00
Tim Abbott 5ce69b3ecb backends: Fix unnecessary duplicate query to realm in social auth.
This is just a small cleanup to the social auth backend code.
2018-06-06 00:31:59 -07:00
Tim Abbott 35c4a9f1d2 auth: Rewrite our social auth integration to use pipeline.
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).
2018-06-05 23:24:48 -07:00
Tim Abbott 47824a97a4 ldap: Add return_data for the ldap_missing_attribute property.
This should make it possible in the future to do better error output
for this case.
2018-05-31 14:16:03 -07:00
Tim Abbott ecb3a2ccef ldap: Clarify outside_ldap_domain exception logic.
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.
2018-05-31 14:12:06 -07:00
Tim Abbott 91ec0aba09 auth: Improve interactions between LDAPAuthBackend and EmailAuthBackend.
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.
2018-05-28 22:47:47 -07:00
Tim Abbott 8119670da1 user_settings: Prevent LDAP users from setting a Zulip password.
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.
2018-05-28 22:47:47 -07:00
Umair Khan f38d6ac6fe ldap: Make Zulip compatible with django-auth-ldap==1.5.
In version 1.5, get_or_create_user method is not used. It exists just
for the compatibility. The main function to use now is
get_or_build_user.

See the changelog:
https://django-auth-ldap.readthedocs.io/en/latest/changes.html#id1

Fixes #9307
2018-05-22 08:13:41 -07:00
Aditya Bansal 83d422d5bc zproject: Change use of typing.Text to str. 2018-05-10 14:19:49 -07:00
Tim Abbott a9fb02b712 test_auth_backends: Add a test for GitHub auth mobile_flow_otp. 2018-04-22 19:55:05 -07:00
Tim Abbott 64023fc563 auth: Fix incorrect use of get_realm_from_request.
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.
2018-04-22 16:24:43 -07:00
Tim Abbott 65025e8327 auth: Add return_data for RemoteUserBackend.
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.
2018-04-22 14:44:06 -07:00
Aditya Bansal 1e48dac8f3 auth.py: Make redirects to 'next' url work for google and github.
In this commit we start to support redirects to urls supplied as a
'next' param for the following two backends:
* GoogleOAuth2 based backend.
* GitHubAuthBackend.
2018-03-21 13:35:44 -07:00
Tim Abbott 34efab9157 auth: Report to mobile apps the availability of RemoteUserBackend.
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).
2018-02-24 08:14:17 -08:00
rht 92888a0cde zproject: Use Python 3 syntax for typing. 2017-11-27 17:01:18 -08:00
Tim Abbott d1ff4293a5 backends: Remove assumption that only one user can have a given email.
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.
2017-11-26 15:42:48 -08:00
Tim Abbott 719d6c49df forms: Stop using get_user_profile_by_email in OurAuthenticationForm.
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.
2017-11-21 20:14:12 -08:00
Tim Abbott 36bc037cc2 auth: Convert SocialAuthMixin to use new helper.
This is a pure refactor at this point.
2017-11-21 20:14:12 -08:00
Tim Abbott 22b7de0ccd auth: Move check for social backend earlier.
This better fits the flow that we use in other auth backends.
2017-11-21 20:14:12 -08:00
Tim Abbott 665fc594db auth: Set valid_attestation more unconditionally in social auth. 2017-11-21 20:14:12 -08:00
Tim Abbott ade5b4ea69 auth: Convert SocialAuthMixin to accept a realm object. 2017-11-21 20:14:12 -08:00
Tim Abbott 732dd1b6a3 auth: Improve logic for invalid GitHub emails.
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.
2017-11-21 20:14:12 -08:00
Tim Abbott 1c9a28d0d8 ldap: Use simpler ordering for handling successful auth.
common_get_active_user returns None if it finds any problems.
2017-11-21 19:08:45 -08:00
Tim Abbott e0b56c72de ldap: Simplify logic for user creation.
self._realm can't be None here with the new logic in authenticate().
2017-11-21 19:08:45 -08:00
Tim Abbott e91051b1cd ldap: Remove some unnecessary indentation.
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.
2017-11-21 19:06:19 -08:00
Tim Abbott c4c8879cf7 ldap: Fix the error message for deactivated users. 2017-11-21 18:35:05 -08:00
Tim Abbott 97f1c2a72a ldap: Use new helper for checking realm status.
We intentionally don't fix the indentation that now feels ridiculous
below in order to make it easier to see what's actually changing in
this commit.
2017-11-21 18:35:04 -08:00
Tim Abbott 104a8de148 ldap: Shrink unnecessary scope of missing user block.
This is a pure refactor, and will help simplify the change in the next
commit.
2017-11-21 18:30:51 -08:00
Tim Abbott e100935527 auth: Move LDAP check for whether backend is enabled earlier.
The previous logic felt fairly convoluted.
2017-11-21 18:30:51 -08:00
Tim Abbott 195a78ad11 auth: Convert EmailAuthBackend to use new helper.
This lets us delete some duplicate code, since common_get_active_user
handles an account in the wrong subdomain for us.

Also lets us delete the now-unused common_get_active_user_by_email.
2017-11-21 18:30:51 -08:00
Tim Abbott 8c21619be8 auth: Move checks for password_auth_enabled earlier.
This way, we don't attempt to evaluate whether the user's account is
active (etc.) until after we've checked the backend is enabled.  This
won't change the result of actual auth, but feels more readable.
2017-11-21 18:30:29 -08:00
Tim Abbott 3bfb19b5f3 Convert EmailAuthBackend and LDAPAuthBackend to accept a realm. 2017-11-21 18:23:50 -08:00
Tim Abbott 53224a16a9 EmailAuthBackend: Convert a return to assert for a now-impossible case. 2017-11-21 18:23:50 -08:00
Tim Abbott 1b95b098dd auth: Clarify comments explaining the GoogleMobileOauth2Backend. 2017-11-21 18:23:50 -08:00
Tim Abbott 23d791ca1b auth: Convert GoogleMobileOauth2Backend to use new helper.
That logic was now just duplicate code.
2017-11-21 18:23:49 -08:00
Tim Abbott caddef9279 auth: Invert conditionals in GoogleMobileOAuth2Backend.
This will help make the flow more readable.
2017-11-21 18:23:49 -08:00
Tim Abbott fee2e36800 auth: Set valid_attestation for Google auth backend always.
This is a behavior change, though we don't check the value in the
caller regardless.  It just seems more logical for us to correctly
report to the caller whether the Google auth itself was valid
unconditionally.
2017-11-21 18:23:49 -08:00
Tim Abbott 3c15f442fe auth: Check for GoogleMobileOauth2Backend being enabled earlier. 2017-11-21 18:23:49 -08:00
Tim Abbott a7d51127fb auth: Convert GoogleMobileOAuth2Backend to accept a realm object. 2017-11-21 18:23:49 -08:00
Tim Abbott 37acfb4e90 auth: Convert DevAuthBackend to use new helper. 2017-11-21 18:23:49 -08:00
Tim Abbott fa8eab303a auth: Check for DevAuthBackend being enabled earlier. 2017-11-21 18:23:49 -08:00
Tim Abbott 07bc31f818 auth: Convert DevAuthBackend to accept a realm object. 2017-11-21 18:23:49 -08:00
Tim Abbott 4968631d1b auth: Convert DevAuthBackend to use a unique argument pattern.
This helps ensure that we won't accidentally activate this backend on
other code paths.
2017-11-21 18:23:49 -08:00
Tim Abbott f2d3258a56 auth: Rewrite RemoteUserBackend to use new helper. 2017-11-21 18:23:49 -08:00
Tim Abbott 73df431b88 auth: Check for RemoteUserBackend being enabled earlier.
This is possible now that we have a realm object before fetching the
UserProfile object.
2017-11-21 18:23:49 -08:00
Tim Abbott d63e9f240c auth: Remove unnecessary remote_user=None code path.
This code path was only required because we had remote_user set as a
positional argument here, and thus we'd be running this auth backend's
code when actually using another auth backend (due to how Django auth
backends are selected based on argument signature).
2017-11-21 18:23:49 -08:00
Tim Abbott 387c9109ec auth: Convert RemoteUserBackend to accept a realm object. 2017-11-21 18:23:49 -08:00
Tim Abbott fb6abe1b1e auth: Rewrite DummyAuthBackend to not block email reuse.
This require some care to ensure we still provide the same nice error
messages for the case of a user who has an account, just not with this
organization.

Also, we fix the fact that the docstring was (and I think always has
been) at best confusing and perhaps even inaccurate.
2017-11-21 18:23:26 -08:00
Tim Abbott f17974ab32 DummyAuthBackend: Require being passed a realm object.
We should now always know the realm in our auth code paths.
2017-11-21 18:22:37 -08:00
Tim Abbott 089ff8a0ae backends: Convert authenticate methods to modern type annotations. 2017-11-21 11:47:26 -08:00
Umair Khan 1e3aa55f4f github: Override get_authenticated_user.
Now we have moved the `do_auth` function to `SocialAuthMixin`. Instead
of overriding `do_auth`, derived class is now expected to override
`get_authenticated_user`.

`do_auth` now contains code which is expected by all backends.
2017-11-17 11:44:13 -08:00
rht 047eca1629 zproject: Remove unused imports (F401). 2017-11-07 16:37:03 -08:00
rht e33c8d91e0 zproject: Remove inheritance from object. 2017-11-06 08:53:48 -08:00
neiljp (Neil Pilgrim) 1197ff9655 mypy: Explicitly return Set[Any] for empty set in backends.py. 2017-11-04 19:47:45 -07:00
rht 38acddee99 zproject: Remove u prefix from strings. 2017-11-02 11:01:47 -07:00
rht c4fcff7178 refactor: Replace super(.*self) with Python 3-specific super().
We change all the instances except for the `test_helpers.py`
TimeTrackingCursor monkey-patching, which actually needs to specify
the base class.
2017-10-30 14:30:25 -07:00
Greg Price fad3d56810 views: Move some login code from `registration` to `auth`.
Most of these have more to do with authentication in general than with
registering a new account.  `create_preregistration_user` could go
either way; we move it to `auth` so we can make the imports go only in
one direction.
2017-10-27 14:28:38 -07:00
Tim Abbott 8e2cdedf9a lint: Fix lines in Python codebase longer than 120 characters. 2017-10-26 17:47:30 -07:00
Greg Price 30cc2994de social auth: Replace a bit of explicit model-querying with get_realm. 2017-10-26 10:29:17 -07:00
Greg Price 27adbe8d79 subdomains: Clean up a use of various falsy values for the root domain.
This isn't a complete cleanup of the logic at this spot, but
at least the messy part that remains is now explicit.
2017-10-26 10:29:17 -07:00
Greg Price c9457d4af0 subdomains: Refactor check_subdomain to a clearer interface.
Now that every call site of check_subdomain produces its second
argument in exactly the same way, push that shared bit of logic
into a new wrapper for check_subdomain.

Also give that new function a name that says more specifically what
it's checking -- which I think is easier to articulate for this
interface than for that of check_subdomain.
2017-10-26 10:29:17 -07:00
Vishnu Ks 9314a7ac8b backends: Move EmailLogBackEnd to email_backends. 2017-10-25 14:35:12 -07:00
Vishnu Ks 1d94119d31 actions: Call send_initial_pms from process_new_human_user. 2017-10-25 14:14:59 -07:00
Tim Abbott 70d509196d backends: Call send_initial_pms on other user creation paths.
This fixes a problem we've seen where LDAP users were not getting this
part of the onboarding process, and a similar problem for human users
created via the API.

Ideally, we would have put these fixes in process_new_human_user, but
that would cause import loop problems.
2017-10-24 09:03:53 -07:00
Tim Abbott 716c525389 backends: Sort imports. 2017-10-24 08:59:39 -07:00
Tim Abbott 1ab2ca5986 subdomains: Extract zerver.lib.subdomains library.
These never really belonged with the rest of zerver.lib.utils.py, and
having a separate library makes it easier to enforce full test
coverage.
2017-10-18 22:27:48 -07:00
Umair Khan a48a86237d ldap: Change logging level to warning.
Fixes #6960.
2017-10-13 17:13:18 -07:00
Umair Khan 490515aea6 cleanup: Fix comment in SocialAuthMixin.auth_complete. 2017-10-13 17:13:18 -07:00
Vishnu Ks eef72a98e4 backends: Create custom email backend EmailLogBackEnd.
Create a new custom email backend which would automatically
logs the emails that are send in the dev environment as
well as print a friendly message in console to visit /emails
for accessing all the emails that are sent in dev environment.
Since django.core.mail.backends.console.EmailBackend is no longer
userd emails would not be printed to the console anymore.
2017-10-04 08:20:29 -07:00
Umair Khan 4ed182ef44 django-auth-ldap: Upgrade to 1.2.15.
In 1.2.15 version of django-auth-ldap, the authenticate() function of
LDAPBackend takes username and password as keyword arguments. This
commit updates the code to match this change.

Fixes #6588
2017-10-03 11:40:26 -07:00
Tim Abbott 1d72629dc4 subdomains: Hardcode REALMS_HAVE_SUBDOMAINS=True. 2017-10-02 16:42:43 -07:00