[multifile]openid_hook(+Action)Call hook on the OpenID management library. Defined hooks are:
- login(+OpenID)
- Consider OpenID logged in.
- logout(+OpenID)
- Logout OpenID
- logged_in(?OpenID)
- True if OpenID is logged in
- grant(+Request, +Options)
- Server: Reply positive on OpenID
- trusted(+OpenID, +Server)
- True if Server is a trusted OpenID server
- ax(Values)
- Called if the server provided AX attributes
- x_parameter(+Server, -Name, -Value)
- Called to find additional HTTP parameters to send with the OpenID verify
request.
