NextCloud

The Nextcloud provider allows you to authenticate against users in your Nextcloud instance.

When you are using the Nextcloud provider, you must specify the urls via configuration, environment variable, or command line argument. Depending on whether your Nextcloud instance is using pretty urls your urls may be of the form /index.php/apps/oauth2/* or /apps/oauth2/*.

Refer to the OAuth2 documentation to set up the client id and client secret. Your "Redirection URI" will be https://internalapp.yourcompany.com/oauth2/callback.

    -provider nextcloud
    -client-id <from nextcloud admin>
    -client-secret <from nextcloud admin>
    -login-url="<your nextcloud url>/index.php/apps/oauth2/authorize"
    -redeem-url="<your nextcloud url>/index.php/apps/oauth2/api/v1/token"
    -validate-url="<your nextcloud url>/ocs/v2.php/cloud/user?format=json"

Note: in all cases the validate-url will not have the index.php.