<?php
namespace RESTAPI\Consumer;

/**
 * Stud.IP Session Consumer for the rest api
 *
 * @author     Jan-Hendrik Willms <tleilax+studip@gmail.com>
 * @license    GPL 2 or later
 * @since      Stud.IP 3.0
 * @deprecated Since Stud.IP 5.0. Will be removed in Stud.IP 5.2.
 */
class Studip extends Base
{
    /**
     * Detects a user via the Stud.IP session. If a session is present and
     * valid, the auth and user object have already been set up by stud.ip
     * functions, so we just need to check if these are present.
     *
     * @param mixed $request_type Type of request (optional; defaults to any)
     * @return mixed Instance of self if authentication was detected, false
     *               otherwise
     */
    public static function detect($request_type = null)
    {
        if (
            !isset($GLOBALS['auth'])
            || !$GLOBALS['auth']->is_authenticated()
            || $GLOBALS['user']->id === 'nobody'
            || !\CSRFProtection::verifyRequest()
        ) {
            return false;
        }

        return new self(null, $GLOBALS['user']->id);
    }
}