PHP¶

<?php

class php_decry
{

    /**
     * 初始化 
     * @param $public_key 企业access_token
     */
    public function init_box($public_key)
    {
        $Box        = range(0, 255);
        $key_length = strlen($public_key);
        $j          = 0;
        foreach ($Box as $key) {
            $index = ord($public_key[($key % $key_length)]);
            $j     = ($j + $Box[$key] + $index) % 256;
            list(
                $Box[$key],
                $Box[$j]
            ) = array($Box[$j], $Box[$key]);
        }
        return $Box;
    }

    /**
     * 加密/解密 
     * @param $string 待加/解密的字符串
     */
    public function do_crypt($Box, $string)
    {
        $index_i = 0;
        $index_j = 0;
        $out     = array();
        for ($i = 0; $i < strlen($string); $i++) {
            $index_i = ($index_i + 1) % 256;
            $index_j = ($index_j + $Box[$index_i]) % 256;
            list(
                $Box[$index_i],
                $Box[$index_j]
            )      = array($Box[$index_j], $Box[$index_i]);
            $r     = ($Box[$index_i] + $Box[$index_j]) % 256;
            $R     = $Box[$r];
            $out[] = chr(ord($string[$i]) ^ $R);
        }
        $res = join("", $out);
        return $res;
    }


    /**
     * 用于请求微信get方法
     * @param string $url url地址
     */
    public function urllib_get($url, $json = true)
    {
        $ch = curl_init();
        curl_setopt($ch, CURLOPT_URL, $url);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
        curl_setopt($ch, CURLOPT_HEADER, 0);
        curl_setopt($ch, CURLOPT_TIMEOUT, 20);

        $output = curl_exec($ch);

        curl_close($ch);
        if ($json) {
            $return_content = json_decode($output);
        } else {
            $return_content = $output;
        }
        return $return_content;
    }

    /**
     * 开始执行
     */
    public function run()
    {
        $corp_secret  = "{你的企业的corp_secret}";
        $access_token = "{你的企业的access_token}";
        $response =$this->urllib_get('https://openapi.2haohr.com/api/departments/?access_token=' . $access_token);
        $base64_text     = base64_decode($response->data);
        $rc4 = $this->init_box($corp_secret);
        return $this->do_crypt($rc4, $base64_text);
    }
}

$obj=new php_decry();
print($obj->run());