This PR allows invitations to be used when the DiscourseConnect SSO is enabled for a site (`enable_discourse_connect`) and local logins are disabled. Previously invites could not be accepted with SSO enabled simply because we did not have the code paths to handle that logic.
The invitation methods that are supported include:
* Inviting people to groups via email address
* Inviting people to topics via email address
* Using invitation links generated by the Invite Users UI in the /my/invited/pending route
The flow works like this:
1. User visits an invite URL
2. The normal invitation validations (redemptions/expiry) happen at that point
3. We store the invite key in a secure session
4. The user clicks "Accept Invitation and Continue" (see below)
5. The user is redirected to /session/sso then to the SSO provider URL then back to /session/sso_login
6. We retrieve the invite based on the invite key in secure session. We revalidate the invitation. We show an error to the user if it is not valid. An additional check here for invites with an email specified is to check the SSO email matches the invite email
7. If the invite is OK we create the user via the normal SSO methods
8. We redeem the invite and activate the user. We clear the invite key in secure session.
9. If the invite had a topic we redirect the user there, otherwise we redirect to /
Note that we decided for SSO-based invites the `must_approve_users` site setting is ignored, because the invite is a form of pre-approval, and because regular non-staff users cannot send out email invites or generally invite to the forum in this case.
Also deletes some group invite checks as per https://github.com/discourse/discourse/pull/12353
This commit adds support for an optional "logout" parameter in the
payload of the /session/sso_provider endpoint. If an SSO Consumer
adds a "logout=true" parameter to the encoded/signed "sso" payload,
then Discourse will treat the request as a logout request instead
of an authentication request. The logout flow works something like
this:
* User requests logout at SSO-Consumer site (e.g., clicks "Log me out!"
on web browser).
* SSO-Consumer site does whatever it does to destroy User's session on
the SSO-Consumer site.
* SSO-Consumer then redirects browser to the Discourse sso_provider
endpoint, with a signed request bearing "logout=true" in addition
to the usual nonce and the "return_sso_url".
* Discourse destroys User's discourse session and redirects browser back
to the "return_sso_url".
* SSO-Consumer site does whatever it does --- notably, it cannot request
SSO credentials from Discourse without the User being prompted to login
again.
This reduces chances of errors where consumers of strings mutate inputs
and reduces memory usage of the app.
Test suite passes now, but there may be some stuff left, so we will run
a few sites on a branch prior to merging
This splits off the logic between SSO keys used incoming vs outgoing, it allows to far better restrict who is allowed to log in using a site.
This allows for better auditing of the SSO provider feature
Use:
locale
locale_force_update
To force user locale on users where SiteSetting.allow_user_locale is enabled
Note: If an invalid locale is specified no action will occur
In some cases add_groups and remove_groups is too much work, some sites
may wish to simply synchronize group membership based on a list.
When sso_overrides_groups is on all not automatic group membership is
sourced from SSO. Note if you omit to specify groups, they will be cleared
out.
Use: add_groups with a comma delimited list to ensure a user is in groups (using group names)
Use: remove_groups with a comma delimited list to ensure a user is removed from groups (using group names)
Implemented by having Discourse download the image from the provided URL
and treating it as a custom upload.
Adds two more parameters to the SSO site’s response:
* `avatar_url` specifies the URL of the overriding avatar.
* `avatar_force_update` Discourse does not re-download avatars that
has already been download from the same URL. Setting this to true forces
Discourse to re-download the avatar in `avatar_url`
Note that both parameters are ignored if `sso_overrides_avatar` is set
to false.
add an external_username attribute for username from SSO payload
repair the field name in SingleSignOnRecord migration
move setting of external_username for sso to controller
add settings toggle to override username/email from SSO payload
fix changing of external username after override toggle
complete tests and logic for sso override
add some extra context to username override option
add external_email and external_name to single sign on record
add setting for name override from SSO payload
complete override with stored external_email and external_name
add missing checks to tests
remove an unneeded describe block
break up a monster method for single sign on
fixes for sso attribute override after failed tests
