reset api check Signature

check signature

<?php
class Demo
{
   /**
     * @var string
     */
    public static $ACCESS_KEY = 'KUN6xYZlOAtid2MjHm90-6VFY2M7HC90ijDH4uOR';

    /**
     * @var string
     */
    public static $SECRET_KEY = 'D-K57TE5hPe3krexftxLWFKmL2xbQEKA-mtkrUfB';

    /**
     *
     */
    public function actionTest()
    {
        $result = Yii::app()->request->getParam('token', '');

        if ($result) {
            $result = explode(':', $result);
            if(count($result) < 3){
                echo 'invalidate request';
                exit;
            }

            list($accessKey, $sign, $data) = $result;
            if ($this->compareSign($sign, $data)) {
                $data = self::deCodeData($data);

                if ($data['deadline'] < time()) {
                    exit('timeout');
                }
                unset($data['deadline']);

                print_r($data);
            }
        }
    }

    /**
     *
     */
    public function actionReq()
    {
        $data = array(
            'name' => 'zhangsan',
            'age' => '25'
        );
        echo $this->makeRequest($data);
        exit;
    }


    /**
     * @param $data
     * @return string
     */
    public static function makeRequest($data)
    {
        $find = array('+', '/');
        $replace = array('-', '_');
        $time = time() + 3600;
        $data['deadline'] = $time;
        $data = self::enCodeData($data);
        $sign = hash_hmac('sha1', $data, self::$SECRET_KEY, true);
        return self::$ACCESS_KEY . ':' . str_replace($find, $replace, base64_encode($sign)) . ':' . $data;
    }

    /**
     *
     * 校验签名
     *
     * @param string $sign
     * @param string $data
     * @return bollen
     */
    public static function compareSign($sign, $data)
    {
        $replace = array('+', '/');
        $find = array('-', '_');
        $sign = str_replace($find, $replace, $sign);
        $sign = base64_decode($sign);
        return hash_hmac('sha1', $data, self::$SECRET_KEY, true) == $sign;
    }

    /**
     * @param $data
     * @return mixed
     */
    public static function deCodeData($data)
    {
        $replace = array('+', '/');
        $find = array('-', '_');
        $data = str_replace($find, $replace, $data);
        $data = base64_decode($data);
        return json_decode($data, 1);
    }

    /**
     * @param $data
     * @return mixed|string
     */
    public static function enCodeData($data)
    {
        $find = array('+', '/');
        $replace = array('-', '_');

        $data = json_encode($data);
        $data = str_replace($find, $replace, base64_encode($data));
        return $data;
    }
}