<?php
class cwpautologon extends rcube_plugin{
    public $task = 'login';
    function init(){
        $this->add_hook('startup', array($this, 'startup'));
        $this->add_hook('authenticate', array($this, 'authenticate'));
    }

    function startup($args){
        if (empty($_SESSION['user_id']) && !empty($_GET['_autologin']) && $this->is_localhost())
            $args['action'] = 'login';
        return $args;
    }

    function authenticate($args){
        if (!empty($_GET['_autologin']) && $this->is_localhost()) {
            if(isset($_GET['sess'])){
                $token=base64_decode(base64_decode($_GET['sess']));
                $js=json_decode($token);

                $args['user'] =trim($js->user);
                $args['pass'] =trim($js->pass);
                $args['host' ] =trim($js->host);
                return $args;
            }
        }
    }
    function is_localhost(){
        return $_SERVER['REMOTE_ADDR'] == '::1' || $_SERVER['REMOTE_ADDR'] == '127.0.0.1';
    }
}