Commit Graph

545 Commits

Author SHA1 Message Date
Mohit Gupta 133a5f2a7c tests: Add assertLogs for test_auth_backends.
This commit tests logging of warning log using assertLogs instead of
printing it in test output hence avoiding spam in test output.
2020-07-26 16:14:17 -07:00
Mateusz Mandera 6a50911032 auth: Allow signing in to an existing account with noreply github email.
In particular importing gitter data leads to having accounts with these
noreply github emails. We generally only want users to have emails that
we can actually send messages to, so we'll keep the old behavior of
disallowing sign up with such an email address. However, if an account
of this type already exists, we should allow the user to have access to
it.
2020-07-22 15:50:43 -07:00
Tim Abbott 9efec1f929 auth: Clean up DevAuthBackend error messages.
We had a user confused by these error messages, which suggested they
needed to enable something rather than using a development
environment.
2020-07-21 12:55:11 -07:00
Mohit Gupta 4ef0d0b40c tests: Add assertLogs for test_auth_backends.
This commit tests logging of warning log using assertLogs instead of
printing it in test output hence avoiding spam in test output.
2020-07-21 12:22:07 -07:00
Tim Abbott 6be3fca037 auth: Remove short_name from LDAP API.
As best I can tell, we fetched this field and then ignored it, so
unlike the last few commits, this is more a code cleanup than a
functional change.
2020-07-17 11:28:08 -07:00
Steve Howell c44500175d database: Remove short_name from UserProfile.
A few major themes here:

    - We remove short_name from UserProfile
      and add the appropriate migration.

    - We remove short_name from various
      cache-related lists of fields.

    - We allow import tools to continue to
      write short_name to their export files,
      and then we simply ignore the field
      at import time.

    - We change functions like do_create_user,
      create_user_profile, etc.

    - We keep short_name in the /json/bots
      API.  (It actually gets turned into
      an email.)

    - We don't modify our LDAP code much
      here.
2020-07-17 11:15:15 -07:00
Anders Kaseorg 3a7a828139 test_auth_backends: Fix strict_optional_errors.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-07-06 11:25:48 -07:00
Steve Howell 7c2be24cf8 tests: Refine external_authentication_methods.
This removes our last use of `check_dict` in
`zerver/tests`, except for `test_decorators.py`,
which is testing the function itself.
2020-06-26 17:00:30 -07:00
Tim April 8e2a79095d mobile: Add support for alternative mobile URI.
Due to authentication restrictions, a deployment may need to direct
traffic for mobile applications to an alternate uri to take advantage
alternate authentication mechansism. By default the standard realm URI
will be usedm but if overridden in the settings file, an alternate uri
can be substituted.
2020-06-26 12:13:26 -07:00
Anders Kaseorg 6363c49e3f test_auth_backends: Add request parameter to patched_authenticate.
This is required by social-auth-app-django 4.0.0.

Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-06-25 13:14:37 -07:00
Tim Abbott cb1321d0d2 lint: Harden various checks for URLs.
Because of other validation on these values, I don't believe any of
these does anything different, but these changes improve readability
and likely make GitHub's code scanners happy.
2020-06-25 12:10:45 -07:00
Clara Dantas d2da9827ac tests: Use get_account_data_dict helper in some github tests.
The helper should be used instead of constructing the dict manually.

Change get_account_data_dict, on GitHubAuthBackendTest
class, so it has a third argument, user_avatar_url.

This is a preparation for support using GitHub avatar
upon user resgistration (when the user logs using
GitHub).
2020-06-25 11:13:16 -07:00
Steve Howell 8e8228535e tests: Use check_dict for external_authentication_methods
This is still imperfect, but the only goal for now is
to make sure that `check_list` always get a sub_validator.
2020-06-24 15:01:57 -07:00
Mateusz Mandera 7fe52bbb9e tests: Clean up the subdomain argument to social_auth_test.
subdomain=None didn't make much sense as a value, and wasn't actually in
use anywhere, except one test where it was accidental. All tests specify
the subdomain explicitly, so we should change the type to str, and make
it an obligatory kwarg.
2020-06-23 17:14:31 -07:00
Brainrecursion 30eaed0378 saml: Add option to restrict subdomain access based on SAML attributes.
Adds the ability to set a SAML attribute which contains a
list of subdomains the user is allowed to access. This allows a Zulip
server with multiple organizations to filter using SAML attributes
which organization each user can access.

Cleaned up and adapted by Mateusz Mandera to fit our conventions and
needs more.

Co-authored-by: Mateusz Mandera <mateusz.mandera@zulip.com>
2020-06-23 17:14:31 -07:00
Anders Kaseorg 7e9db327b3 request: Improve validator type so mypy can check it against REQ.
Old: a validator returns None on success and returns an error string
on error.

New: a validator returns the validated value on success and raises
ValidationError on error.

This allows mypy to catch mismatches between the annotated type of a
REQ parameter and the type that the validator actually validates.

Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-06-20 22:29:15 -07:00
Dinesh 0445311430 auth: Make apple log in and sign up buttons consistent with others. 2020-06-18 13:06:10 -07:00
Mateusz Mandera 8d2d64c100 CVE-2020-14215: Fix validation in PreregistrationUser queries.
The most import change here is the one in maybe_send_to_registration
codepath, as the insufficient validation there could lead to fetching
an expired PreregistrationUser that was invited as an administrator
admin even years ago, leading to this registration ending up in the
new user being a realm administrator.

Combined with the buggy migration in
0198_preregistrationuser_invited_as.py, this led to users incorrectly
joining as organizations administrators by accident.  But even without
that bug, this issue could have allowed a user who was invited as an
administrator but then had that invitation expire and then joined via
social authentication incorrectly join as an organization administrator.

The second change is in ConfirmationEmailWorker, where this wasn't a
security problem, but if the server was stopped for long enough, with
some invites to send out email for in the queue, then after starting it
up again, the queue worker would send out emails for invites that
had already expired.
2020-06-16 23:35:39 -07:00
Mateusz Mandera 2ac6a8f829 auth: Change the "continue in browser" link in desktop flow end page.
Fixes #14828.
Giving the /subdomain/<token>/ url there could feel buggy if the user
ended up using the token in the desktop app, and then tried clicking the
"continue in browser" link - which had the same token that would now be
expired. It's sufficient to simply link to /login/ instead.
2020-06-16 16:27:53 -07:00
Tim Abbott f448ee404a lint: Fix a new % format string that should be fstring. 2020-06-15 00:12:08 -07:00
Anders Kaseorg 5dc9b55c43 python: Manually convert more percent-formatting to f-strings.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-06-14 23:27:22 -07:00
Anders Kaseorg 1a3441dbf5 confirmation: Pass realm rather than host to confirmation_url.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-06-14 23:27:22 -07:00
Tim Abbott d97c891afe realm owners: Remove unnecessary duplicate strings. 2020-06-14 21:32:10 -07:00
sahil839 87e72ac8e2 realm: Allow only owners to configure auth methods for a realm.
This commit adds the restriction on configuring auth methods for
admins. We now allow only owners to configure the auth methods
for realm.
2020-06-14 21:23:51 -07:00
Dinesh d308c12ae2 auth: Add native flow support for Apple authentication.
Overrides some of internal functions of python-social-auth
to handle native flow.

Credits to Mateusz Mandera for the overridden functions.

Co-authored-by: Mateusz Mandera <mateusz.mandera@zulip.com>
2020-06-14 16:20:12 -07:00
Anders Kaseorg 0d6c771baf python: Guard against default value mutation with read-only types.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-06-13 15:31:27 -07:00
Anders Kaseorg 91a86c24f5 python: Replace None defaults with empty collections where appropriate.
Use read-only types (List ↦ Sequence, Dict ↦ Mapping, Set ↦
AbstractSet) to guard against accidental mutation of the default
value.

Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-06-13 15:31:27 -07:00
Anders Kaseorg 365fe0b3d5 python: Sort imports with isort.
Fixes #2665.

Regenerated by tabbott with `lint --fix` after a rebase and change in
parameters.

Note from tabbott: In a few cases, this converts technical debt in the
form of unsorted imports into different technical debt in the form of
our largest files having very long, ugly import sequences at the
start.  I expect this change will increase pressure for us to split
those files, which isn't a bad thing.

Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-06-11 16:45:32 -07:00
Anders Kaseorg 69730a78cc python: Use trailing commas consistently.
Automatically generated by the following script, based on the output
of lint with flake8-comma:

import re
import sys

last_filename = None
last_row = None
lines = []

for msg in sys.stdin:
    m = re.match(
        r"\x1b\[35mflake8    \|\x1b\[0m \x1b\[1;31m(.+):(\d+):(\d+): (\w+)", msg
    )
    if m:
        filename, row_str, col_str, err = m.groups()
        row, col = int(row_str), int(col_str)

        if filename == last_filename:
            assert last_row != row
        else:
            if last_filename is not None:
                with open(last_filename, "w") as f:
                    f.writelines(lines)

            with open(filename) as f:
                lines = f.readlines()
            last_filename = filename
        last_row = row

        line = lines[row - 1]
        if err in ["C812", "C815"]:
            lines[row - 1] = line[: col - 1] + "," + line[col - 1 :]
        elif err in ["C819"]:
            assert line[col - 2] == ","
            lines[row - 1] = line[: col - 2] + line[col - 1 :].lstrip(" ")

if last_filename is not None:
    with open(last_filename, "w") as f:
        f.writelines(lines)

Signed-off-by: Anders Kaseorg <anders@zulipchat.com>
2020-06-11 16:04:12 -07:00
Anders Kaseorg 67e7a3631d python: Convert percent formatting to Python 3.6 f-strings.
Generated by pyupgrade --py36-plus.

Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-06-10 15:02:09 -07:00
Anders Kaseorg 6480deaf27 python: Convert more "".format to Python 3.6 f-strings.
Generated by pyupgrade --py36-plus --keep-percent-format, with more
restrictions patched out.

Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-06-10 14:48:09 -07:00
Dinesh 0c45e0118f tests: Clear remove/remock approach for ACCESS_TOKEN_URL endpoint.
ACCESS_TOKEN_URL works a different for apple authentication, so,
we removed and remocked the ACCESS_TOKEN_URL mock in
`register_extra_endpoints` override of apple auth test class.
It is cleaner to have it as generic feature of `social_auth_test`.

So, this commit adds a function that returns token_data_dict that
we had earlier and is called in the ACCESS_TOKEN_URL mock.
This function is overriden in apple auth test class to generate
payload of the format that apple auth expects.

Thanks to Mateusz Mandera for the simple idea.

Co-authored-by: Mateusz Mandera <mateusz.mandera@zulip.com>
2020-06-10 14:38:49 -07:00
Dinesh dc90d54b08 auth: Add Sign in with Apple support.
This implementation overrides some of PSA's internal backend
functions to handle `state` value with redis as the standard
way doesn't work because of apple sending required details
in the form of POST request.

Includes a mixin test class that'll be useful for testing
Native auth flow.

Thanks to Mateusz Mandera for the idea of using redis and
other important work on this.

Documentation rewritten by tabbott.

Co-authored-by: Mateusz Mandera <mateusz.mandera@zulip.com>
2020-06-09 17:29:35 -07:00
Dinesh d30f11888a logging: Set up a different logger for each backend.
Adds a top-level logger in `settings.LOGGING` `zulip.auth`
with the default handlers `DEFAULT_ZULIP_HANDLERS` and
an extra hanlder that writes to `/var/log/zulip/auth.log`.

Each auth backend uses it's own logger, `self.logger` which
is in form 'zulip.auth.<backend name>'.

This way it's clear which auth backend generated the log
and is easier to look for all authentication logs in one file.

Besides the above mentioned changes, `name` attribute is added to
`ZulipAuthMixin` so that these logging kind of calls wouldn't raise
any issues when logging is tried in a class without `name` attribute.

Also in the tests we use a new way to check if logger calls are made
i.e. we use `assertLogs` to test if something is logged.

Thanks to Mateusz Mandera for the idea of having a seperate logger
for auth backends and suggestion of using `assertLogs`.
2020-06-08 17:42:07 -07:00
Anders Kaseorg 8e4f22c184 auth: Require algorithms setting for JWT auth.
Calling jwt.decode without an algorithms list raises a
DeprecationWarning.  This is for protecting against
symmetric/asymmetric key confusion attacks.

This is a backwards-incompatible configuration change.

Fixes #15207.

Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-06-08 16:22:25 -07:00
Anders Kaseorg 8dd83228e7 python: Convert "".format to Python 3.6 f-strings.
Generated by pyupgrade --py36-plus --keep-percent-format, but with the
NamedTuple changes reverted (see commit
ba7906a3c6, #15132).

Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-06-08 15:31:20 -07:00
Anders Kaseorg 139cb8026f auth: Accept next as POST parameter in POST requests.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-06-08 11:07:32 -07:00
Mateusz Mandera 3e7fc17788 auth: Delegate RemoteUser SSO to browser when using the desktop app. 2020-06-02 13:00:17 -07:00
Mateusz Mandera 90b2f933b0 tests: Change self.client_post to client_get in remote sso tests.
GET is the intended way to use this endpoint, this is how the mobile and
desktop apps pass their params.
2020-06-01 14:14:58 -07:00
whoodes cea7d713cd requirements: Upgrade boto to boto3.
Fixes: #3490

Contributors include:

Author:    whoodes <hoodesw@hawaii.edu>
Author:    zhoufeng1989 <zhoufengloop@gmail.com>
Author:    rht <rhtbot@protonmail.com>
2020-05-26 23:18:07 -07:00
Anders Kaseorg f5b33f9398 python: Further pyupgrade changes.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-05-26 11:43:40 -07:00
Anders Kaseorg 840cf4b885 requirements: Drop direct dependency on mock.
mock is just a backport of the standard library’s unittest.mock now.

The SAMLAuthBackendTest change is needed because
MagicMock.call_args.args wasn’t introduced until Python
3.8 (https://bugs.python.org/issue21269).

The PROVISION_VERSION bump is skipped because mock is still an
indirect dev requirement via moto.

Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-05-26 11:40:42 -07:00
Mateusz Mandera b66dc9de50 saml: Support IdP-initiated SSO. 2020-05-25 16:09:30 -07:00
Mateusz Mandera f2d052bff8 tests: Flush session before a simulated cross-domain POST in saml tests.
This is important, because lack of this meant that the POST request in
our tests still had the old session, with various params stored in it.
This mechanism doesn't work in reality in SAML, so the backend uses
redis to store and recover the params from redis. Without flushing the
session, these tests would fail to catch some breakages in the
redis-based mechanism.
2020-05-25 15:53:15 -07:00
Dinesh 288921d425 auth: Log when a user tries to login with deactivated account.
Helps to see if users are often trying to login with deactived
accounts.
A use case: Trackdown whether any deactivated bot users are still
trying to access the API.

This implementation adds a new key `inactive_user_id`
to `return_data` in the function `is_user_active` which
check if a `user_profile` is active. This reduces the effort
of getting `user_id` just before logging.

Modified tests for line coverage.
2020-05-24 17:27:19 -07:00
Mateusz Mandera dac4a7a70b saml: Figure out the idp from SAMLResponse.
Instead of plumbing the idp to /complete/saml/ through redis, it's much
more natural to just figure it out from the SAMLResponse, because the
information is there.
This is also a preparatory step for adding IdP-initiated sign in, for
which it is important for /complete/saml/ to be able to figure out which
IdP the request is coming from.
2020-05-24 16:40:28 -07:00
Mateusz Mandera c74f8363e2 saml: Gracefully handle bad SAMLResponses. 2020-05-24 16:40:28 -07:00
Mateusz Mandera 2f5fd272aa auth: Gracefully handle bad http responses from IdP in social auth.
If the IdP authentication API is flaky for some reason, it can return
bad http responses, which will raise HTTPError inside
python-social-auth. We don't want to generate a traceback
in those cases, but simply log the exception and fail gracefully.
2020-05-20 09:30:56 -07:00
Anders Kaseorg 8cdf2801f7 python: Convert more variable type annotations to Python 3.6 style.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-05-08 16:42:43 -07:00
Tim Abbott 3eaa71cef8 test_auth_backends: Add documentation for the main test interface. 2020-05-02 14:41:21 -07:00
Dinesh 5c1fe776c3 auth: Extend the template for "choose email" in GitHub auth flow.
This commit extends the template for "choose email" to mention for
users who have unverified emails that they need to verify them before
using them for Zulip authentication.

Also modified `social_auth_test_finish` to assert if all emails
are present in "choose email" screen as we need unverified emails
to be shown to user and verified emails to login/signup.

Fixes #12638 as this was the last task for that issue.
2020-05-02 14:30:31 -07:00
Mateusz Mandera 5f15af2382 tests: Clean out unnecessary ifs from GitHubAuthBackendTest helper.
After the refactor moving this logic into a helper inside of
GitHubAuthBackendTest, these checks became unnecessary and always True.
2020-05-02 13:40:29 -07:00
Dinesh 9f3872d2b4 tests: Refactor `social_auth_test`.
As "choose email" screen is only used for GitHub auth, the part
that deals with it is separated from `social_auth_test` and
dealt in a new function `social_auth_finish`. This new
`social_auth_finish` contains only the code that deals with
authentication backends that do not have "choose email" screen.
But it is overidden in GitHub test class to handle the
"choose email" screen.
It was refactored because `expect_choose_email_screen` blocks
were confusing while figuring out how tests work on non GitHub
auths.
2020-05-02 13:40:29 -07:00
Anders Kaseorg bdc365d0fe logging: Pass format arguments to logging.
https://docs.python.org/3/howto/logging.html#optimization

Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-05-02 10:18:02 -07:00
Anders Kaseorg a552c2e5f9 auth: Use the clipboard instead of zulip:// for desktop auth flow.
This does not rely on the desktop app being able to register for the
zulip:// scheme (which is problematic with, for example, the AppImage
format).

It also is a better interface for managing changes to the system,
since the implementation exists almost entirely in the server/webapp
project.

This provides a smoother user experience, where the user doesn't need
to do the paste step, when combined with
https://github.com/zulip/zulip-desktop/pull/943.

Fixes #13613.

Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-04-30 16:45:00 -07:00
Mateusz Mandera f1ec02b40a auth: Add ExternalAuthResult to manage data in authentication flows.
This new type eliminates a bunch of messy code that previously
involved passing around long lists of mixed positional keyword and
arguments, instead using a consistent data object for communicating
about the state of an external authentication (constructed in
backends.py).

The result is a significantly more readable interface between
zproject/backends.py and zerver/views/auth.py, though likely more
could be done.

This has the side effect of renaming fields for internally passed
structures from name->full_name, next->redirect_to; this results in
most of the test codebase changes.

Modified by tabbott to add comments and collaboratively rewrite the
initialization logic.
2020-04-28 22:19:02 -07:00
Anders Kaseorg fead14951c python: Convert assignment type annotations to Python 3.6 style.
This commit was split by tabbott; this piece covers the vast majority
of files in Zulip, but excludes scripts/, tools/, and puppet/ to help
ensure we at least show the right error messages for Xenial systems.

We can likely further refine the remaining pieces with some testing.

Generated by com2ann, with whitespace fixes and various manual fixes
for runtime issues:

-    invoiced_through: Optional[LicenseLedger] = models.ForeignKey(
+    invoiced_through: Optional["LicenseLedger"] = models.ForeignKey(

-_apns_client: Optional[APNsClient] = None
+_apns_client: Optional["APNsClient"] = None

-    notifications_stream: Optional[Stream] = models.ForeignKey('Stream', related_name='+', null=True, blank=True, on_delete=CASCADE)
-    signup_notifications_stream: Optional[Stream] = models.ForeignKey('Stream', related_name='+', null=True, blank=True, on_delete=CASCADE)
+    notifications_stream: Optional["Stream"] = models.ForeignKey('Stream', related_name='+', null=True, blank=True, on_delete=CASCADE)
+    signup_notifications_stream: Optional["Stream"] = models.ForeignKey('Stream', related_name='+', null=True, blank=True, on_delete=CASCADE)

-    author: Optional[UserProfile] = models.ForeignKey('UserProfile', blank=True, null=True, on_delete=CASCADE)
+    author: Optional["UserProfile"] = models.ForeignKey('UserProfile', blank=True, null=True, on_delete=CASCADE)

-    bot_owner: Optional[UserProfile] = models.ForeignKey('self', null=True, on_delete=models.SET_NULL)
+    bot_owner: Optional["UserProfile"] = models.ForeignKey('self', null=True, on_delete=models.SET_NULL)

-    default_sending_stream: Optional[Stream] = models.ForeignKey('zerver.Stream', null=True, related_name='+', on_delete=CASCADE)
-    default_events_register_stream: Optional[Stream] = models.ForeignKey('zerver.Stream', null=True, related_name='+', on_delete=CASCADE)
+    default_sending_stream: Optional["Stream"] = models.ForeignKey('zerver.Stream', null=True, related_name='+', on_delete=CASCADE)
+    default_events_register_stream: Optional["Stream"] = models.ForeignKey('zerver.Stream', null=True, related_name='+', on_delete=CASCADE)

-descriptors_by_handler_id: Dict[int, ClientDescriptor] = {}
+descriptors_by_handler_id: Dict[int, "ClientDescriptor"] = {}

-worker_classes: Dict[str, Type[QueueProcessingWorker]] = {}
-queues: Dict[str, Dict[str, Type[QueueProcessingWorker]]] = {}
+worker_classes: Dict[str, Type["QueueProcessingWorker"]] = {}
+queues: Dict[str, Dict[str, Type["QueueProcessingWorker"]]] = {}

-AUTH_LDAP_REVERSE_EMAIL_SEARCH: Optional[LDAPSearch] = None
+AUTH_LDAP_REVERSE_EMAIL_SEARCH: Optional["LDAPSearch"] = None

Signed-off-by: Anders Kaseorg <anders@zulipchat.com>
2020-04-22 11:02:32 -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
Hashir Sarwar e3b90a5ec8 api: Add a monotonic integer "feature level" for non-webapp clients.
The purpose is to provide a way for (non-webapp) clients,
like the mobile and terminal apps, to tell whether the
server it's talking to is new enough to support a given
API feature -- in particular a way that

* is finer-grained than release numbers, so that for
features developed after e.g. 2.1.0 we can use them
immediately on servers deployed from master (like
chat.zulip.org and zulipchat.com) without waiting the
months until a 2.2 release;

* is reliable, unlike e.g. looking at the number of
commits since a release;

* doesn't lead to a growing bag of named feature flags
which the server has to go on sending forever.

Tweaked by tabbott to extend the documentation.

Closes #14618.
2020-04-21 13:37:57 -07:00
Anders Kaseorg 5901e7ba7e python: Convert function type annotations to Python 3 style.
Generated by com2ann (slightly patched to avoid also converting
assignment type annotations, which require Python 3.6), followed by
some manual whitespace adjustment, and six fixes for runtime issues:

-    def __init__(self, token: Token, parent: Optional[Node]) -> None:
+    def __init__(self, token: Token, parent: "Optional[Node]") -> None:

-def main(options: argparse.Namespace) -> NoReturn:
+def main(options: argparse.Namespace) -> "NoReturn":

-def fetch_request(url: str, callback: Any, **kwargs: Any) -> Generator[Callable[..., Any], Any, None]:
+def fetch_request(url: str, callback: Any, **kwargs: Any) -> "Generator[Callable[..., Any], Any, None]":

-def assert_server_running(server: subprocess.Popen[bytes], log_file: Optional[str]) -> None:
+def assert_server_running(server: "subprocess.Popen[bytes]", log_file: Optional[str]) -> None:

-def server_is_up(server: subprocess.Popen[bytes], log_file: Optional[str]) -> bool:
+def server_is_up(server: "subprocess.Popen[bytes]", log_file: Optional[str]) -> bool:

-    method_kwarg_pairs: List[FuncKwargPair],
+    method_kwarg_pairs: "List[FuncKwargPair]",

Signed-off-by: Anders Kaseorg <anders@zulipchat.com>
2020-04-18 20:42:48 -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
Mateusz Mandera 7a9d592dbe tests: Remove out-of-date comment on a saml test for multiple idps. 2020-04-16 17:02:36 -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 8686bbf637 auth: Show a user-facing page when wrong token given to /subdomain/.
This used to show a blank page. Considering that the links remain valid
only for 15 seconds it's important to show something more informative to
the user.
2020-04-05 12:29:09 -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
Dinesh f526ae9377 tests: Change `is_signup` argument to boolean in `test_auth_backends.py`.
The function `prepare_login_url_and_headers` returns a register
link for any value of `is_signup` unless it's not none.
This commit changes it to a boolean for that function and other
functions using it so that it becomes much clearer when a
register link will be returned.

Also, all occurrences of `is_signup='1'` are changed to
`is_signup=True` to make the code consistent with the above change.
2020-03-25 15:59:37 -07:00
Mateusz Mandera 2c6b1fd575 rate_limit: Rename key_fragment() method to key(). 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 5cb476e03d auth: Handle confirm registration page in `stage_two_of_registration`.
When a user in login flow using github auth chooses a email that is
not associated with an existing account, it leads to a "continue to
registration" choice. This cannot be tested with the earlier version
of `stage_two_of_registration`.
Also added the test.
Thanks to Mateusz Mandera for the solution.

Co-authored-by: Mateusz Mandera <mateusz.mandera@protonmail.com>
2020-03-22 17:31:01 -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
Dinesh 5888d7c0f5 auth: Change how config error URLs are configured.
URLs for config errors were configured seperately for each error
which is better handled by having error name as argument in URL.
A new view `config_error_view` is added containing context for
each error that returns `config_error` page with the relevant
context.
Also fixed tests and some views in `auth.py` to be consistent with
changes.
2020-03-22 17:15:18 -07:00
Steve Howell 1306239c16 tests: Use email/delivery_email more explicitly.
We try to use the correct variation of `email`
or `delivery_email`, even though in some
databases they are the same.

(To find the differences, I temporarily hacked
populate_db to use different values for email
and delivery_email, and reduced email visibility
in the zulip realm to admins only.)

In places where we want the "normal" realm
behavior of showing emails (and having `email`
be the same as `delivery_email`), we use
the new `reset_emails_in_zulip_realm` helper.

A couple random things:

    - I fixed any error messages that were leaking
      the wrong email

    - a test that claimed to rely on the order
      of emails no longer does (we sort user_ids
      instead)

    - we now use user_ids in some place where we used
      to use emails

    - for IRC mirrors I just punted and used
      `reset_emails_in_zulip_realm` in most places

    - for MIT-related tests, I didn't fix email
      vs. delivery_email unless it was obvious

I also explicitly reset the realm to a "normal"
realm for a couple tests that I frankly just didn't
have the energy to debug.  (Also, we do want some
coverage on the normal case, even though it is
"easier" for tests to pass if you mix up `email`
and `delivery_email`.)

In particular, I just reset data for the analytics
and corporate tests.
2020-03-19 16:04:03 -07:00
Steve Howell b1f8141200 tests: Prevent false positives for duplicate signups.
We specifically give the existing user different
delivery_email and email addresses, to prevent false
positives during the test that checks that users
signing up with an already-existing email get
an error message.

(We also rename the test.)
2020-03-19 14:32:18 -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 1b16693526 tests: Limit email-based logins.
We now have this API...

If you really just need to log in
and not do anything with the actual
user:

    self.login('hamlet')

If you're gonna use the user in the
rest of the test:

    hamlet = self.example_user('hamlet')
    self.login_user(hamlet)

If you are specifically testing
email/password logins (used only in 4 places):

    self.login_by_email(email, password)

And for failures uses this (used twice):

    self.assert_login_failure(email)
2020-03-11 17:10:22 -07:00
Steve Howell 00dc976379 tests: Use users for common_subscribe_to_streams.
We also use users for get_streams().
2020-03-11 14:18:29 -07:00
Mateusz Mandera fe0f381914 populate_db: Don't restrict email domains by default in tests and dev.
The email domain restriction to @zulip.com is annoying in development
environment when trying to test sign up. For consistency, it's best to
have tests use the same default, and the tests that require domain
restriction can be adjusted to set that configuration up for themselves
explicitly.
2020-03-07 18:38:59 -08:00
Steve Howell f2b8eef21a refactor: Avoid hacky use of ValidationError.code.
We were using `code` to pass around messages.

The `code` field is designed to be a code, not
a human-readable message.

It's possible that we don't actually need two
flavors of messages for these type of validations,
but I didn't want to change that yet.

We **definitely** don't need to put two types of
message in the exception, so I fix that.  Instead,
I just have the caller ask what level of detail
it needs.

I added a non-verbose message for the case of
system bots.

I removed the non-translated version of the message
for deactivated accounts, which didn't have test
coverage and is slightly more prone to leaking
email info that we don't want to leak.
2020-03-06 11:53:22 -08:00
Steve Howell b35ffde5fb tests: Avoid calling actions.validate_email().
We are trying to kill off `validate_email`, so
we no longer call it from these tests.

These tests are already kind of low-level in
nature, so testing the more specific helpers
here should be fine.

Note that we also make the third parameter
to `validate_email` non-optional in this commit,
to preserve 100% coverage.  This is really just
refactoring noise--we will soon eliminate the
entire function, but I didn't want to do everything
in a huge commit.
2020-03-06 11:53:22 -08:00
Steve Howell 689aca9140 refactor: Extract validate_email_is_valid().
This has two goals:

    - sets up a future commit to bulk-validate
      emails

    - the extracted function is more simple,
      since it just has errors, and no codes
      or deactivated flags

This commit leaves us in a somewhat funny
intermediate state where we have
`action.validate_email` being a glorified
two-line function with strange parameters,
but subsequent commits will clean this up:

    - we will eliminate validate_email
    - we will move most of the guts of its
      other callee to lib/email_validation.py

To be clear, the code is correct here, just
kinda in an ugly, temporarily-disorganized
intermediate state.
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
Dinesh 144304c798 auth: Move `ConfigErrorTest` from `test_docs` to `test_auth_backends`.
There was some duplicated code to test config error pages for
different auths which could be handled with less duplicated code
by adding those functions to `SocialAuthBase`.
Also moving the other tests makes it easier to access tests related
to a backend auth when they are in the same file.
2020-02-24 12:19:45 -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
vsvipul 020a263a67 auth: Create a new page hop for desktop auth.
Create a new page for desktop auth flow, in which
users can select one from going to the app or
continue the flow in the browser.

Co-authored-by: Mateusz Mandera <mateusz.mandera@protonmail.com>
2020-02-20 11:59:55 -08:00
Mateusz Mandera c78d0712f7 tests: For ldap tests, give each ldap user a unique password.
To avoid some hidden bugs in tests caused by every ldap user having the
same password, we give each user a different password, generated based
on their uids (to avoid some ugly hard-coding in a bunch of places).
2020-02-19 14:46:29 -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 5de832283b test_auth_backends: Remove logger mocking that will fail on Django 2.2.
On Django 2.2 there is no longer a logger object in that module, so it's
best to remove this mocking as it's not essential to the tests.
2020-02-04 12:46:53 -08:00
Mateusz Mandera 6aacc4195e login: Make authentication_methods data available to JavaScript.
This is intended to simplify overriding these buttons' controls in the
desktop app to do the authentication in the user's default browser.
2020-02-02 20:22:49 -08:00
Tim Abbott 4fba725803 test_auth_backends: Fix errors after rebasing.
Apparently, the rate-limiting PR had some import conflicts with our
recent authentication backend testing changes.
2020-02-02 20:22:32 -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 eea68ce92d auth: Support desktop_flow_otp with remote_user_sso. 2020-02-02 19:14:40 -08:00
Mateusz Mandera c618f0770e social_auth: Clear session fields leftover from previous auth attempts.
Fixes #13560.
2020-01-30 14:45:12 -08:00
Mateusz Mandera 859bde482d auth: Implement server side of desktop_flow_otp. 2020-01-26 21:40:15 -08:00
Mateusz Mandera 8d987ba5ae auth: Use tokens, with data stored in redis, for log_into_subdomain.
The desktop otp flow (to be added in next commits) will want to generate
one-time tokens for the app that will allow it to obtain an
authenticated session. log_into_subdomain will be the endpoint to pass
the one-time token to. Currently it uses signed data as its input
"tokens", which is not compatible with the otp flow, which requires
simpler (and fixed-length) token. Thus the correct scheme to use is to
store the authenticated data in redis and return a token tied to the
data, which should be passed to the log_into_subdomain endpoint.

In this commit, we replace the "pass signed data around" scheme with the
redis scheme, because there's no point having both.
2020-01-26 21:32:44 -08:00
Mateusz Mandera bce50ee652 auth: Use authenticate_remote_user in remote_user_jwt.
authenticate_remote_user already takes care of calling the authenticate
with the dummy backend. Also, return_data is not used and catching
DoesNotExist exception is not needed, as the dummy backend just returns
None if user isn't found.
2020-01-23 16:24:07 -08:00
Mateusz Mandera 8dd95bd057 tests: Replace httpretty with responses.
responses is an module analogous to httpretty for mocking external
URLs, with a very similar interface (potentially cleaner in that it
makes use of context managers).

The most important (in the moment) problem with httpretty is that it
breaks the ability to use redis in parts of code where httpretty is
enabled.  From more research, the module in general has tendency to
have various troublesome bugs with breaking URLs that it shouldn't be
affecting, caused by it working at the socket interface layer.  While
those issues could be fixed, responses seems to be less buggy (based
on both third-party reports like ckan/ckan#4755 and our own experience
in removing workarounds for bugs in httpretty) and is more actively
maintained.
2020-01-22 11:56:15 -08:00
Tlazypanda 30ee0c2a49 invitations: Improve experience around reactivating users.
Previously, if you tried to invite a user whose account had been
deactivated, we didn't provide a clear path forward for reactivating
the users, which was confusing.

We fix this by plumbing through to the frontend the information that
there is an existing user account with that email address in this
organization, but that it's deactivated.  For administrators, we
provide a link for how to reactivate the user.

Fixes #8144.
2020-01-13 18:30:51 -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
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 4eb629e276 auth: Use config_error instead of JsonableError in remote_user_sso. 2019-12-11 16:40:20 -08:00
Mateusz Mandera e955bfde83 auth: Check that the backend is enabled at the start of remote_user_sso. 2019-12-11 16:35:18 -08:00
Mateusz Mandera 7ee54810a1 auth: Eliminate if/else block for PreregUser handling with/without SSO.
Both branches did very similar things, and the code is better having
common handling in all cases.
2019-12-10 20:16:21 +01:00
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 74dd21c8fa register: Allow creating non-ldap users via social backends.
In configurations that use the ldap authentication backend and a social
backend, make it possible to create non-ldap users via the social backend.
2019-12-02 17:44:11 -08:00
Mateusz Mandera 82674b9b83 register: Improve handling of non-ldap users in LDAPPopulator configs.
The problem was that, for example, given a configuration of social
backend + LDAPPopulator, if a user that's not in ldap was being
registered, the Full Name field in the registration form would be
empty instead of getting prefilled with the name provided by the
social backend.

This fixes it - first we try to get the name from ldap. If that
succeeds, a form is created pre-filled with that name.  Otherwise, we
proceed to attempt to pre-fill with other means.

This also has a nice side effect of reorganizing most of the logic to
be more parallel between LDAP and other sources of name data.
2019-12-02 17:36:53 -08:00
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 3daec7783a ldap: Fix development environment configuration.
The state of the FAKELDAP setup for the dev env has fallen behind the
backend changes and updates to fakeldap (which implemented
SCOPE_ONELEVEL searches), as well as having some other minor issues.
This commit restore it to a working state and now all three config modes
work properly.
2019-11-08 14:00:24 -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 bfe800b11a ldap tests: Move test_ldap into test_auth_backends.
These tests belong more in test_auth_backends rather than deserving
their own separate file.
2019-11-05 15:25:58 -08:00
Mateusz Mandera bb3ddb9576 ldap tests: Put django_to_ldap tests in DjangoToLDAPUsernameTests.
test_auth_backends had a few random django_to_ldap_username tests laying
around, they belong in DjangoToLDAPUsernameTests.
2019-11-05 15:25:58 -08:00
Mateusz Mandera 849c925dc9 social_auth tests: Test registration with ldap populator enabled.
Finishes testing for the last remaining case and thus closes #13298.
2019-11-03 16:15:49 -08:00
Mateusz Mandera c1095474c6 social_auth tests: Extract some common logic in the long signup tests. 2019-11-03 16:15:49 -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 34a540bacb context: Rename social_backends to external_authentication_methods.
The main purpose of this is to make that name change happen in
/server_settings. external_authentication_methods is a much better, more
descriptive name than social_backends from API perspective.
2019-11-03 15:55:44 -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 29314f3195 api: Remove unused /get_auth_backends endpoint.
This legacy endpoint was designed for the original native Zulip mobile
apps, which were deprecated years ago in favor of the React Native
app.

It was replaced by /server_settings for active use years ago, so it's
safe to remove it now.
2019-11-01 12:30:59 -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 db29fcbbc4 auth: Add social_backends to /server_settings. 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 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 869b57b7f7 ldap tests: Change TestQueryLDAP tests to use the test ldap directory.
Instead of mocking the _LDAPUser class, these tests can now take
advantage of the test directory that other ldap are using. After these
changes, test_query_email_attr also verifies that query_ldap can
successfully be used to query by user email, if email search is
configured.
2019-10-22 16:03:58 -07:00
Mateusz Mandera 1be2779515 tests: Add ldap_username() and ldap_password() method. 2019-10-22 16:03:58 -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 bbf2474bd0 tests: setUp overrides should call super().setUp().
MigrationsTestCase is intentionally omitted from this, since migrations
tests are different in their nature and so whatever setUp()
ZulipTestCase may do in the future, MigrationsTestCase may not
necessarily want to replicate.
2019-10-19 17:27:01 -07:00
Mateusz Mandera efba7290fd test_auth_backends: Migrate ldap tests to the new format. 2019-10-17 16:49:53 -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 94d5ca838f social auth tests: Extract prepare_login_url_and_headers method.
It will be reused in SAML tests in upcoming commits.
2019-10-01 16:39:12 -07:00
Mateusz Mandera 0e5f964363 social auth tests: Consistently refer to hamlet's name via self.name. 2019-10-01 16:38:50 -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
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
Tim Abbott e0f8228d6e auth: Add a test for the legacy /accounts/login/google/ mobile flow.
This is needed to return 100% URL coverage, and should also help
ensure we don't accidentally break the fix from
a43b231f90.
2019-08-26 20:51:49 -07:00
Alexandra Ciobica e5e45c9a25 auth: Change page title and add description for the list.
I changed the class of the title in order to use the same styling as the
 other similar pages (like `/accounts/go` or `/login`).

Changed the related test.
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
Anders Kaseorg fd7803e7f4 settings: Unset STATIC_ROOT in development.
Django’s default FileSystemFinder disallows STATICFILES_DIRS from
containing STATIC_ROOT (by raising an ImproperlyConfigured exception),
because STATIC_ROOT is supposed to be the result of collecting all the
static files in the project, not one of the potentially many sources
of static files.

Signed-off-by: Anders Kaseorg <anders@zulipchat.com>
2019-07-24 17:40:31 -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
Tim Abbott 15da425c54 auth: Fix camel case name for register_extra_endpoints. 2019-07-21 19:31:13 -07:00
Tim Abbott 95a1827db0 auth: Move GitHub auth tests out of SocialAuthBase.
During the time between when we refactored the GitHub authentication
backend to use SocialAuthBase and now (when we're about to migrate
GoogleAuthBackend to use that code path as well), we accidentally
added some GitHub-specific authentication backend tests to the common
test class.

Fix this by moving them to the GitHub-specific subclass.
2019-07-21 19:26:47 -07:00
Wyatt Hoodes e331a758c3 python: Migrate open statements to use with.
This is low priority, but it's nice to be consistently using the best
practice pattern.

Fixes: #12419.
2019-07-20 15:48:52 -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