Add additional SSO Options

[DenisKevljanin]

Currently only Casdoor is supported. A generic OIDC or LDAP provider would be great, so some flexibility is given.
You could also think about utilizing https://next-auth.js.org.

[jearton]

or think about utilizing Keycloak

[tranthibichhlieu]

or zitadel

[nomeguy]

Currently only Casdoor is supported. A generic OIDC or LDAP provider would be great, so some flexibility is given. You could also think about utilizing https://next-auth.js.org.

Casdoor already supports OIDC and LDAP, and more like SAML, CAS, LDAP, SCIM, WebAuthn, TOTP, MFA, RADIUS, etc. And it provides a better integrated solution. it's handling all the dirty work. You don't need to support native OIDC, and native LDAP. Next people will ask for native SAML, ask for CAS. Finally you found your project has become a Casdoor. So this is an endless game and why involved into this and got your hands dirty at the first time? If it's the case, maybe it's better to just create a new SSO open source project.

[Hintay]

Related issue: #163