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- <?php
- namespace BsPaySdk\core;
- class BsPayTools
- {
- /**
- * 私钥加签(对数据源排序),可用于 V2 版本接口数据加签
- *
- * @param @param array $data 原数据( 排序后的json字符串; 数组参数排序后转json字符串(数据的中文和斜杠均不转码):
- ksort($post_data); json_encode($post_data, JSON_UNESCAPED_SLASHES|JSON_UNESCAPED_UNICODE); )
- * @param string $rsaPrivateKey 私钥
- * @param int $alg 默认 OPENSSL_ALGO_SHA256
- *
- * @return string 签名串
- */
- public static function sha_with_rsa_sign($data, $rsaPrivateKey, $alg=OPENSSL_ALGO_SHA256){
- $key = "-----BEGIN PRIVATE KEY-----\n".wordwrap($rsaPrivateKey, 64, "\n", true)."\n-----END PRIVATE KEY-----";
- $signature= '';
- try {
- openssl_sign($data, $signature, $key, $alg);
- } catch (\Exception $e) {
- echo $e->getMessage();
- }
- return base64_encode($signature);
- }
- public static function encrypt_with_rsa_pubkey($data, $rsaPublicKey, $padding=OPENSSL_PKCS1_PADDING){
- $key = "-----BEGIN PUBLIC KEY-----\n".wordwrap($rsaPublicKey, 64, "\n", true)."\n-----END PUBLIC KEY-----";
- $encryptResult= '';
- try {
- openssl_public_encrypt($data, $encryptResult, $key, $padding);
- } catch (\Exception $e) {
- echo $e->getMessage();
- }
- return base64_encode($encryptResult);
- }
- /**
- * 使用公钥验签,可用于异步应答验签
- *
- * @param string $signature 签文
- * @param string $data 原数据(string)
- * @param string $rsaPublicKey 公钥
- * @param int $alg 默认 OPENSSL_ALGO_SHA256
- *
- * @return false|int 验证结果:成功/失败
- */
- public static function verifySign($signature, $data, $rsaPublicKey, $alg=OPENSSL_ALGO_SHA256){
- $key = "-----BEGIN PUBLIC KEY-----\n".wordwrap($rsaPublicKey, 64, "\n", true)."\n-----END PUBLIC KEY-----";
- return openssl_verify($data, base64_decode($signature), $key, $alg);
- }
- /**
- * 使用公钥验签(对数据源排序),可用于 V2 版本接口返回数据验签
- *
- * @param string $signature 签文
- * @param array $data 原数据(array)
- * @param string $rsaPublicKey 公钥
- * @param int $alg 默认 OPENSSL_ALGO_SHA256
- *
- * @return false|int 验证结果:成功/失败
- */
- public static function verifySign_sort($signature, $data, $rsaPublicKey, $alg=OPENSSL_ALGO_SHA256){
- $key = "-----BEGIN PUBLIC KEY-----\n".wordwrap($rsaPublicKey, 64, "\n", true)."\n-----END PUBLIC KEY-----";
- ksort($data);
- return openssl_verify(json_encode($data, JSON_UNESCAPED_SLASHES|JSON_UNESCAPED_UNICODE), base64_decode($signature), $key, $alg);
- }
- public static function checkEmpty($value) {
- return !isset($value) || trim($value) === "";
- }
- public static function endWith($str, $suffix) {
- $length = strlen($suffix);
- if($length == 0){
- return false;
- }
- return (substr($str, -$length) === $suffix);
- }
- /**
- * 校验 webhook 返回报文签名
- *
- * @param string $signature 签文
- * @param array $data 原数据(array)
- * @param string $key 加签 key
- * @param int $alg 默认 OPENSSL_ALGO_SHA256
- *
- * @return true|false 验证结果:成功/失败
- */
- public static function verify_webhook_sign($signature, $data, $key){
- $sign = md5(json_encode($data, JSON_UNESCAPED_SLASHES|JSON_UNESCAPED_UNICODE).$key);
- return $sign == strtolower($signature);
- }
- }
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