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1, 'data' => [], 'message' => ''];
} catch (\Exception $e) {
return ['status' => 0, 'data' => [], 'message' => $e->getMessage()];
}
}
/**
* 产生随机字符串,不长于32位
* @param int $length
* @return string
*/
public static function createNonceStr(int $length = 32): string
{
$chars = "abcdefghijklmnopqrstuvwxyz0123456789";
$str = "";
for ($i = 0; $i < $length; $i++) {
$str .= substr($chars, mt_rand(0, strlen($chars) - 1), 1);
}
return $str;
}
/**
* 产生请求参数的排序后的字符串
* @param array $requestParamArr
* @return string
*/
public static function createSortQueryString(array $requestParamArr): string
{
if (isset($requestParamArr['key'])) unset($requestParamArr['key']);
if (isset($requestParamArr['signature'])) unset($requestParamArr['signature']);
ksort($requestParamArr);
return http_build_query($requestParamArr);
}
/**
* 创建签名串
* @param string $sortQueryString 排序字符串
* @param string $signType 签名类型:MD5;HMAC-SHA256;
* @param string $key
* @return string
* @throws \Exception
*/
public static function createSignatureString(string $sortQueryString, string $signType, string $key): string
{
$returnStr = '';
if ($signType == 'MD5') {
$sortQueryString .= '&key=' . $key;
$returnStr = md5($sortQueryString);
} elseif ($signType == 'HMAC-SHA256') {
$returnStr = hash_hmac('sha256', $sortQueryString, $key);
} else {
throw new \Exception('签名类型不支持');
}
return $returnStr;
}
/**
* 验证外部请求
* @param array $originRequestParamArr
* @return array
*/
public static function validateRequest(array $originRequestParamArr): array
{
try {
$validate = self::validateQueryParam($originRequestParamArr, false);
if (!$validate['status']) throw new \Exception($validate['message']);
$now = time();
if (($now - $originRequestParamArr['timestamp']) > 15) throw new \Exception('请求时间异常');
$signType = $originRequestParamArr['sign_type'];
$originKey = $originRequestParamArr['key'];
$originSignature = $originRequestParamArr['signature'];
unset($originRequestParamArr['key'], $originRequestParamArr['signature']);
$newSignature = self::createSignatureString(self::createSortQueryString($originRequestParamArr), $signType, $originKey);
if ($originSignature != $newSignature) throw new \Exception('签名错误');
return ['status' => 1, 'data' => [], 'message' => ''];
} catch (\Exception $e) {
return ['status' => 0, 'data' => [], 'message' => $e->getMessage()];
}
}
}
使用
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//生成签名
$request = [
'a' => 1,
'b' => 2,
'c' => 3,
'sign_type' => 'HMAC-SHA256',
'timestamp' => time() + 600,
'nonce_str' => SignatureService::createNonceStr(),
];
SignatureService::init($request);
$result = SignatureService::validateQueryParam();
if (!$result['status']) exit($result['message']);
$key = 'helloworld';
$signature = SignatureService::createSignatureString(SignatureService::createSortQueryString($request), $request['sign_type'], $key);
$request['key'] = $key;
$request['signature'] = $signature;
echo "";
print_r($request);
//校验签名
$validate = SignatureService::validateRequest($request, false);
必要参数:
- 'sign_type' => 'HMAC-SHA256', //签名类型,当前支持SHA256、MD5
- 'timestamp' => '1539255134', //时间戳
- 'nonce_str' => 'n5ryqp0f9ur3u3u8lxfblxw9h03emyka',//随机数
- 'key' => 'helloworld', //密钥
- 'signature' => 'f0ca487612f15059c47aba5e8503c6400981fbed20d1af958003e3f798d1bbd2',//签名