Authenticates users with a Discourse SSO provider. This might also be useful if you don't run Discourse at all, because the protocol is very simple and thus easy to implement.

External requirements: This plugin requires the following additional components that must be installed separately:

• A Discourse-compatible SSO provider (see documentation). Discourse itself can also act as an SSO provider.

Install the plugin using the Plugin Manager and the download URL above, which points to latest version of the plugin. Refer to Plugins on how to install plugins manually.

Two configuration keys are required. For example, if you have a Discourse instance at https://discourse.example.com and a DokuWiki instance at dokuwiki.example.com, follow these steps:

• Enable the SSO provider in the Discourse settings (settings key “enable sso provider”)
• Generate a shared secret (e.g., head -c18 /dev/urandom | base64) and add your site to the “sso provider secrets” (fill in dokuwiki.example.com / <your shared secret>)
• Add the following to your DokuWiki configuration, or fill in with the configuration editor:

$conf['authtype'] = 'authdiscourse';
$conf['plugin']['authdiscourse']['sso_url'] = 'https://discourse.example.com/session/sso_provider';
$conf['plugin']['authdiscourse']['sso_secret'] = '<your shared secret>';

• Make setcookie call compatible with PHP < 7.3 (2019-05-23 16:02)
• Change return URL to https (2019-05-23 15:23)
• Set name / username as DokuWiki expects it (2019-05-23 15:05)
• Initial commit (2019-05-23 14:49)

Please report bugs on GitHub.