Create a wiki page documenting the data flow and code components touched by authenticating to MediaWiki starting from the username/password entry and following through to a valid session. The documentation should include analysis of:

• core MediaWiki AuthPlugin
• Central Auth
• LDAP Auth
• OATH Auth (2-factor)
• OAuth
• OAuth Authentication, OpenID and/or Google Login

Key points to capture:

• Hooks used
• High level summary of activity performed by hooks
• "Tricks" used to work around poorly exposed or unexposed features in the core stack