Single Sign-On for GLPI

Single sign-on (SSO) is a property of access control of multiple related, yet independent, software systems. With this property, a user logs in with a single ID and password to gain access to any of several related systems.

Installation

Uncompress the archive to the <GLPI_ROOT>/plugins/singlesignon directory
Navigate to the Configuration > Plugins page,
Install and activate the plugin.

Usage

Go to Configuration > Single Sign-On and add a provider
To test, do logout and try login with links below login page Login with <name>

Available providers

Azure - https://docs.microsoft.com/azure/app-service/configure-authentication-provider-aad
Facebook - https://developers.facebook.com/docs/apps/
GitHub - https://developer.github.com/apps/building-oauth-apps/creating-an-oauth-app/
Google - https://developers.google.com/identity/protocols/OpenIDConnect
Instagram - https://www.instagram.com/developer/authentication/
LinkedIn - https://docs.microsoft.com/en-us/linkedin/shared/authentication/authorization-code-flow?context=linkedin/context
Generic - Allow to define custom URLs
Zitadel - use Generic and see parameters in Generic Examples - Zitadel

Adding translations

If your preferred language is missing. You can add your own translation with the following steps:

Go to the plugin folder
Switch to the folder locales
Copy one of the already existing .po files
Rename it into the correct notation of your language
Edit the file, edit msgstr to change the translation, do not touch the msgid
Edit the header especially the "Language: "
When the file is ready, then you need to compile it with: msgfmt -o filename.mo filename.po
If msgfmt is not found, install the package gettext (apt install -y gettext)
If you edit a previous translation, you may need to update the translation cache: go to Setup - General - Performance, enable Debug mode, clear translation cache