CloudapiSign.php
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<?php
namespace app\common\library\cloudapi;
use think\Exception;
/**
* 云API签名工具类
* Class CloudapiSign
* @package app\common\library
*/
class CloudapiSign
{
public static function sign($data){
if (empty($data) || !is_array($data)){
throw new Exception(ErrorCode::getMessage(ErrorCode::FAILED_SIGN), ErrorCode::FAILED_SIGN);
}
if (!isset($data['app_secret'])){
throw new Exception(ErrorCode::getMessage(ErrorCode::NOT_HAVE_APP_SECRET), ErrorCode::NOT_HAVE_APP_SECRET);
}
//去除参数中的sign
if (isset($data['sign'])){
unset($data['sign']);
}
//对数组进行键名排序
ksort($data);
//把数组中非空参数拼接成url参数形式的字符串：如age=10&name=小明
$dataStr = '';
foreach ($data as $key => $v){
if (!empty($v)){
$dataStr .= $key . '=' . $v . '&';
}
}
$dataStr = trim($dataStr, '&');
//对字符串进行加密
$sign = hash_hmac('sha256', $dataStr, $data['app_secret'],true);
$signature = base64_encode($sign);
return $signature;
}
public static function check($data){
if (!isset($data['sign'])){
throw new Exception(ErrorCode::getMessage(ErrorCode::NOT_HAVE_SIGN), ErrorCode::NOT_HAVE_SIGN);
}
if (!isset($data['timestamp'])){
throw new Exception(ErrorCode::getMessage(ErrorCode::NOT_HAVE_TIMESTAMP), ErrorCode::NOT_HAVE_TIMESTAMP);
}
$sign = $data['sign'];
try {
$signNew = self::sign($data);
} catch (Exception $e) {
throw $e;
}
if ($sign !== $signNew){
throw new Exception(ErrorCode::getMessage(ErrorCode::VERIFICATION_FAILED), ErrorCode::VERIFICATION_FAILED);
}
if (time() - $data['timestamp'] > 5){
throw new Exception(ErrorCode::getMessage(ErrorCode::INVALID_SIGN), ErrorCode::INVALID_SIGN);
}
return true;
}
}