Make possible create users and login via Telegram, OAuth or OpenID

For OAuth you must create app for certain providers. Login button appear at login page if app id specified. Settings are in "Social login" section of settings page.

Feel free to contact with me for your custom config.

You can use groups from your custom provider. For that you should specify "Groups claim" in custom OAuth2/OIDC provider settings. That claim should be returned from provider in id_token or at user info endpoint. Format should be array or comma separated string. Eg (with claim named roles)

{"roles": ["admin", "user"]}
or
{"roles": "admin,user"}

You can use provider groups in two ways:

1. Map provider groups to existing nextcloud groups
2. Create provider groups in nextcloud and associate it to user (if appropriate option specified)

If you want sync groups on every login do not forget to check "Update user profile every login" setting

You can find example how to configure WSO2IS for return roles claim with OIDC at https://medium.com/@dewni.matheesha/claim-mapping-and-retrieving-end-user-information-in-wso2is-cffd5f3937ff

For using telegram login you need create bot and connect it to domain as described here https://core.telegram.org/widgets/login

Then specify bot login and token in "Social login" section of admin settings page

Telegram auth will not work everywhere another than browser.*

You can create app by followed urls. You can copy link of certain login button to get proper "redirect url" for OAuth app setting.

• Google
• Amazon
• Facebook
• Twitter
• GitHub
• Discord

Details about "Allow login only from specified domain" google setting you can find here #44

You can use 'social_login_auto_redirect' => true setting in config.php for auto redirect unauthorized users to social login if only one provider is configured.

You can copy link from specific login button on login page and paste it on provider's website as callback url! Some users may get strange reply(Callback) url error from provider even if you pasted the right url, that's because your nextcloud server may generate http urls when you are actually using https. Please set 'overwriteprotocol' => 'https', in your config.php file.