Commit Graph

110 Commits

Author SHA1 Message Date
Tim Abbott 7a66dfa133 auth: Tweak docs now that SAML supports multiple IdPs. 2019-10-28 15:22:29 -07:00
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 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 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 d70e1bcdb7 settings: Add FAKE_EMAIL_DOMAIN setting.
Fixes #9401.

This adds a FAKE_EMAIL_DOMAIN setting, which should be used if
EXTERNAL_HOST is not a valid domain, and something else is needed to
form bot and dummy user emails (if email visibility is turned off).
It defaults to EXTERNAL_HOST.

get_fake_email_domain() should be used to get this value. It validates
that it's correctly set - that it can be used to form valid emails.

If it's not set correctly, an exception is raised. This is the right
approach, because it's undesirable to have the server seemingly
peacefully operating with that setting misconfigured, as that could
mask some hidden sneaky bugs due to UserProfiles with invalid emails,
which would blow up the moment some code that does validate the emails
is called.
2019-08-30 14:59:00 -07:00
Wyatt Hoodes 77068f3e1e settings: Fix typing for AUTHENTICATION_BACKENDS. 2019-07-25 17:41:01 -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
Mateusz Mandera 3a4f8ed737 docs: Move prose email mirror instructions out of settings template.
This should make it easier to understand the documentation.
2019-07-10 13:33:25 -07:00
Tim Abbott f5375adf8f settings: Improve example for RABBITMQ_HOST.
We prefer 127.0.0.1 over localhost for RabbitMQ because of weird IPv6
issues, so we should avoid mentioning localhost as an example.
2019-06-06 16:41:15 -07:00
Puneeth Chaganti a1590c613e url preview: Enable server level setting for url embed previews.
This significantly simplifies the process for enabling this feature in
new organizations.
2019-05-31 15:37:03 -07:00
vinitS101 4c8f9f07d7 uploads: Add comment explaining how to disable uploads.
Added a comment to explain how to disable file uploads, and what other
changes that will cause.
2019-05-24 14:47:04 -07:00
Rishi Gupta c40eb524de org settings: Change a few references to Jitsi to Jitsi Meet.
Jitsi Meet is the correct name for the product we integrate with. There is
one other reference to Jitsi, but it's in the db and will require a
migration.
2019-05-08 15:10:21 -07:00
Shubham Padia 8c01f396db settings: Add AVATAR_CHANGES_DISABLED server setting.
Fixes #12132.
Realm setting to disable avatar changes is already present.
The `AVATAR_CHANGES_DISABLED` setting now follows the same
2-setting model as `NAME_CHANGES_DISABLED`.
2019-05-03 12:58:51 -07:00
Tim Abbott d1b8497afb settings: Fix comment explaining NOREPLY_EMAIL_ADDRESS.
This documentation comment incorrectly claimed that we don't use
NOREPLY_EMAIL_ADDRESS when ADD_TOKENS_TO_NOREPLY_ADDRESS=True.

Fixes #12169.
2019-04-23 14:46:39 -07:00
Tim Abbott 435477c703 settings: Document changing LOCAL_UPLOADS_DIR.
The main point here is that you should use a symlink rather than
changing it, since it's more maintenance work to update our nginx
configuration to use an alternative path than to just create a
symbolic link.

Fixes #12157.
2019-04-22 14:33:01 -07:00
Tim Abbott ca04b4f243 settings: Move production noreply templates.
These previously lived in Optional settings, which generally caused
users to not read it.

(Also do a bit of reorganization of the "optional settings" area).
2019-03-21 17:10:11 -07:00
Ben Muschol d526ff00f2 settings: Rename "user avatar" to "profile picture"
This renames references to user avatars, bot avatars, or organization
icons to profile pictures. The string in the UI are updated,
in addition to the help files, comments, and documentation. Actual
variable/function names, changelog entries, routes, and s3 buckets are
left as-is in order to avoid introducing bugs.

Fixes #11824.
2019-03-15 13:29:56 -07:00
Tim Abbott 216d2ec1bf production: Add optional support for submitting usage statistics.
See documentation for details.
2019-02-26 17:35:10 -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 71761bc2da ldap: Add a setting to automatically deactivate non_matching users.
Fixes: #11151.
2019-01-13 19:04:09 -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
Aditya Bansal 3ee69f3da9 thumbnails: Add setting THUMBNAIL_IMAGES.
This setting splits away part of responsibility from THUMBOR_URL.
Now on, this setting will be responsible for controlling whether
we thumbnail images or not by asking bugdown to render image links
to hit our /thumbnail endpoint. This is irrespective of what
THUMBOR_URL is set to though ideally THUMBOR_URL should be set
to point to a running thumbor instance.
2019-01-04 10:27:04 -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 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 106e5c3ed9 docs: Further document tokenized noreply email addresses.
We should still extend email.html to explain the security issue a bit
more clearly, since the article we link to is super long.
2018-11-08 15:26:21 -08:00
Tim Abbott 9b0265452f prod_settings_template: Document email mirror needs MX records.
The docs are still pretty much written for expert sysadmins, but this
should help a lot in avoiding confusing about what step is missing.
2018-10-24 15:02:08 -07:00
Greg Price a612049ac4 docs: Expand on LDAP config; try to clarify "username" concept.
The term "username" confusingly refers both to the Django concept of
"username" (meaning "the name the user types into the login form") and
a concept the admin presumably already has in their existing
environment; which may or may not be the same thing, and in fact this
is where we document the admin's choice of whether and how they should
correspond.  The Django concept in particular isn't obvious, and is
counterintuitive when it means something like an email address.

Explicitly explain the Django "username" concept, under the name of
"Zulip username" to take responsibility for our choice of how it's
exposed in the settings interface.  Then use an explicit qualifier,
like "LDAP username", whenever referring to some other notion of
username.  And make a pass over this whole side of the instructions,
in particular for consistent handling of these concepts.
2018-09-27 13:20:10 -07:00
Greg Price 6f23d2f691 docs: Make a pass over LDAP config/setup docs.
Expand on a few things that tend to confuse people (especially the
`%(user)s` thing); move the `LDAPSearchUnion` example out to docs;
adjust the instructions to fit a bit better in their new docs/ home.
2018-09-27 13:20:10 -07:00
Greg Price e7737c6342 docs: Move prose LDAP instructions out of settings template.
This makes it easier to iterate on these, and to expand supplemental
information (like troubleshooting, or unusual configurations) without
further straining the already-dauntingly-long settings.py.

It also makes it easier to consult the instructions while editing the
secrets file, or testing things, etc. -- most admins will find it more
natural to keep a browser open somewhere than a second terminal.
2018-09-27 13:20:10 -07:00
Luis Silva 5cc0fb5c40 auth: Add example using django LDAPSearchUnion function.
This makes it clear how to do a union search, without having to look
anything up.
2018-09-21 11:04:40 -07:00
Tim Abbott e5668da879 settings: Fix a grammar typo in LDAP documentation. 2018-08-09 13:46:44 -07:00
Aditya Bansal 3dd1613fff auth: Add 'auth' subdomain to ROOT_SUBDOMAIN_ALIASES list.
This makes it easy to use the recommended/default value of
SOCIAL_AUTH_SUBDOMAIN without having to edit ROOT_SUBDOMAIN_ALIASES.
2018-08-02 09:53:38 -07:00
Aditya Bansal 529e4e76c8 thumbnaling: Support S3 upload backend in thumbor.
Credits for doing this goes to @sampritipanda.
2018-07-15 00:57:59 +05:30
Aditya Bansal 98a4e87e1d thumbor: Complete implementation of thumbnailing.
Various pieces of our thumbor-based thumbnailing system were already
merged; this adds the remaining pieces required for it to work:

* a THUMBOR_URL Django setting that controls whether thumbor is
  enabled on the Zulip server (and if so, where thumbor is hosted).

* Replaces the overly complicated prototype cryptography logic

* Adds a /thumbnail endpoint (supported both on web and mobile) for
  accessing thumbnails in messages, designed to support hosting both
  external URLs as well as uploaded files (and applying Zulip's
  security model for access to thumbnails of uploaded files).

* Modifies bugdown to, when THUMBOR_URL is set, render images with the
  `src` attribute pointing /thumbnail (to provide a small thumbnail
  for the image), along with adding a "data-original" attribute that
  can be used to access the "original/full" size version of the image.

There are a few things that don't work quite yet:
* The S3 backend support is incomplete and doesn't work yet.
* The error pages for unauthorized access are ugly.
* We might want to rename data-original and /thumbnail?size=original
  to use some other name, like "full", that better reflects the fact
  that we're potentially not serving the original image URL.
2018-07-15 00:39:41 +05:30
Joshua Schmidlkofer b1a57d144f thumbor: Add production installer/puppet support.
This commits adds the necessary puppet configuration and
installer/upgrade code for installing and managing the thumbor service
in production.  This configuration is gated by the 'thumbor.pp'
manifest being enabled (which is not yet the default), and so this
commit should have no effect in a default Zulip production environment
(or in the long term, in any Zulip production server that isn't using
thumbor).

Credit for this effort is shared by @TigorC (who initiated the work on
this project), @joshland (who did a great deal of work on this and got
it working during PyCon 2017) and @adnrs96, who completed the work.
2018-07-12 20:37:34 +05:30
Aditya Bansal 9b485f3ef4 auth: Fix bug with subdomains and GitHub auth causing apparent logouts.
This adds a new settings, SOCIAL_AUTH_SUBDOMAIN, which specifies which
domain should be used for GitHub auth and other python-social-auth
backends.

If one is running a single-realm Zulip server like chat.zulip.org, one
doesn't need to use this setting, but for multi-realm servers using
social auth, this fixes an annoying bug where the session cookie that
python-social-auth sets early in the auth process on the root domain
ends up masking the session cookie that would have been used to
determine a user is logged in.  The end result was that logging in
with GitHub on one domain on a multi-realm server like zulipchat.com
would appear to log you out from all the others!

We fix this by moving python-social-auth to a separate subdomain.

Fixes: #9847.
2018-07-10 16:49:00 +05:30
Tim Abbott e63541e616 docs: Extract documentation for file upload backends.
This moves the documentation for this feature out of
prod_settings_template.py, so that we can edit it more easily.

We also add a bucket policy, which is part of what one would want to
use this in production.

This addresses much, but not all, of #9361.
2018-05-16 15:00:54 -07:00
Greg Price 9a0fdf5b8d settings: Add a few more section headings.
This should help a bit more in making this file navigable.

I think there's further work that could be done to organize the
settings better: e.g., group LDAP with the auth section; separate
resource limits, from debugging and error reporting, from configuring
service dependencies like Redis and Rabbit.  That'd require reordering
many settings, and also taking a closer look at many settings one by
one in order to do a good job.  Leaving that for another day.
2018-04-05 21:24:48 -07:00
Greg Price 9a9d3097be settings: Add some visual weight to the section headings.
I've found this file hard to navigate for a while.  We actually have a
little hierarchy of section headings which applies to a lot of the
file already; make the boundaries bolder.
2018-04-05 21:24:48 -07:00
Greg Price f597f0b52e settings: Revise block comment at top of file.
Hopefully this is a bit clearer to read.
2018-04-05 21:24:48 -07:00
Greg Price 9956d61e20 settings: Revise comments on SMTP / outgoing email settings.
Add a clear heading, and use fewer words and simpler sentences.  Also
explain the password thing a bit more, and put that more inline next
to the username.

Also, on checking the Django docs, the default for EMAIL_USE_TLS
is False and for EMAIL_PORT is 25.  So most admins, certainly any that
are using an SMTP service on the public Internet (that is at all
decently run), will need to set those settings.  Mention that.
2018-04-05 21:24:48 -07:00
Tim Abbott 938c4cee08 settings: Add option to control Jitsi video chat integration.
Fixes #8922.
2018-04-02 16:55:16 -07:00
Tim Abbott be9dbccdfa settings: Link to documentation on changing settings.
This is obviously more important than the pre-existing link to the
developer documentation for this system.

Fixes #7910.
2018-02-19 09:55:50 -08:00
Greg Price c6ce6dd5c6 settings: Try to clarify how AUTH_LDAP_USER_ATTR_MAP works.
This comment didn't really explain things unless you were looking at
the code, and/or had a strong enough association for what "cn" means
that it was obvious what must be meant.  Maybe this will be clearer.

There is one other meaningful key, which is optional: "short_name",
for which I guess a typical value if supplied would be "uid" or
"userid".  I'm not sure we really do much with a user's `short_name`,
though, so didn't add a comment for it.  When this key is omitted,
we set the user's `short_name` to the same thing as `full_name`.
2018-02-13 11:18:14 -08:00
Greg Price 9e70026741 settings: Slightly clarify LDAP setup docs.
There's kind of a lot of prose in this LDAP section; and empirically
this bit about zulip-secrets.conf is easy to miss.
2018-02-08 10:05:25 -08:00
Greg Price 93e29629ab settings: In ALLOWED_HOSTS example, show a list and an IP address.
Different formats for configuration files have a wide variety of ways
of representing lists; so if you're not accustomed to Python syntax,
or aren't thinking of this file as Python code, the syntax for several
ALLOWED_HOSTS entries may not be obvious.  And this setting is one
that an admin is likely to want to touch quite early in using Zulip.
So, demonstrate a multi-element list.

For similar reasons, demonstrate an IP address.  This one is in a
range reserved for documentation (by RFC 5737), like `example.com`.
2018-02-05 10:27:04 -08:00
Greg Price 3230d35d7f settings: Clean up EMAIL_HOST documentation a bit.
Gmail is a bad example for outbound email; use a generic example.

Also leave the `= None` default out of the config file, as it's
redundant with DEFAULT_SETTINGS in our internal settings.py ; and
explain in the latter why we don't mention the other SMTP settings.
2018-01-24 14:58:21 -08:00
Greg Price 6da9ecef88 settings: Set a flag when email isn't configured, so we can warn. 2018-01-24 14:34:30 -08:00