full decoded file ;)

<?php
class ActivateController extends ActivateAppController
{
    public $name = 'Activate';
    public $uses = null;
    public $components = null;
    public function beforeFilter()
    {
        parent::beforeFilter();
        $this->layout = "install";
        App::import("Component", "Session");
        $this->Session = new SessionComponent;
    }
    protected function _check()
    {
        if (file_exists(CONFIGS . "code.yml")) {
            $key = file_get_contents(CONFIGS . "code.yml");
            $mykey=md5(md5(CONFIGS . " - " . Router::url("/") . " - " . $_SERVER["SERVER_ADDR"]) . "-" . "kJpdRmvVMBzETXqMdNcKNFCJGDuPdQSgpBhLBLLZPpQnUZeSaHmsZjHWVWvreR");
            $mykey1=md5(md5(CONFIGS . " - " . Router::url("/") . " - " . $_SERVER["SERVER_NAME"]) . "-" . "kJpdRmvVMBzETXqMdNcKNFCJGDuPdQSgpBhLBLLZPpQnUZeSaHmsZjHWVWvreR");
            if ($key == $mykey || $key == $mykey1) {
                $this->Session->setFlash("Already Activated");
                $this->redirect("/");
            }
        }
    }
    public function index()
    {
        $this->_check();
        if (isset($_GET["message"])) {
            $this->Session->setFlash(base64_decode($_GET["message"]), "default", array(
                "class" => "error"
            ));
            $this->redirect("/activate");
        }
        $this->set("title_for_layout", __("Activate", true));
        $mykey1=md5(CONFIGS . " - " . Router::url("/") . " - " . $_SERVER["SERVER_NAME"]);
        $this->set("validation_code", $mykey1);
        $this->set("url", Router::url("/", true));
    }
    public function acti($code = null)
    {
        ${"GLOBALS"}["gzxucl"] = "code";
        file_put_contents(CONFIGS . "code.yml", ${${"GLOBALS"}["gzxucl"]});
        $this->Session->setFlash("Application activated");
        $this->redirect("/");
    }
    public function del($code = null)
    {
        $key = file_get_contents(CONFIGS . "code.yml");
        if ($key == $code) {
        file_put_contents(CONFIGS . "code.yml", "ERROR");
        }
    }
}
?>