Piwigo Gallery authentication against EGroupware OpenID Connect server

• Use and install PiwigoOpenIdConnect, see also description in Piwigo Forum
• PiwigoOpenIdConnect is a Piwigo plugin which allows single sign-on logins using the OpenID Connect protocol. The protocol utilizes both the OpenID Connect Core and the OpenID Connect Discovery specifications.

1. Piwigo Gallery displayed and administrated in EGroupware

2. Add an OpenID client and credentials in EGroupware: Admin > Applications > OpenID / OAuth2 Server > Clients > Add

3. Configure OpenID plugin in Piwigo Gallery