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php银联网页支付实现方法

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Release: 2016-06-06 20:07:39
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这篇文章主要介绍了php银联网页支付实现方法,实例分析了php操作银联网支付接口的技巧,具有一定参考借鉴价值,需要的朋友可以参考下

本文实例讲述了php银联网页支付实现方法。分享给大家供大家参考。具体分析如下:
这里介绍的银联WAP支付功能,仅限消费功能。

1. PHP代码如下:

复制代码 代码如下:

namespace common\services;
class UnionPay
{
    /**
     * 支付配置
     * @var array
     */
    public $config = [];
    /**
     * 支付参数,提交到银联对应接口的所有参数
     * @var array
     */
    public $params = [];
    /**
     * 自动提交表单模板
     * @var string
     */
    private $formTemplate =


   
    支付


   
跳转中...

   

        %s
   

   


HTML;
/**
* 构建自动提交HTML表单
* @return string
*/
public function createPostForm()
{
        $this->params['signature'] = $this->sign();
        $input = '';
        foreach($this->params as $key => $item) {
            $input .= "\t\t\n";
        }
        return sprintf($this->formTemplate, $this->config['frontUrl'], $input);
}
/**
* 验证签名
* 验签规则:
* 除signature域之外的所有项目都必须参加验签
* 根据key值按照字典排序,然后用&拼接key=value形式待验签字符串;
* 然后对待验签字符串使用sha1算法做摘要;
* 用银联公钥对摘要和签名信息做验签操作
*
* @throws \Exception
* @return bool
*/
public function verifySign()
{
        $publicKey = $this->getVerifyPublicKey();
        $verifyArr = $this->filterBeforSign();
        ksort($verifyArr);
        $verifyStr = $this->arrayToString($verifyArr);
        $verifySha1 = sha1($verifyStr);
        $signature = base64_decode($this->params['signature']);
        $result = openssl_verify($verifySha1, $signature, $publicKey);
        if($result === -1) {
            throw new \Exception('Verify Error:'.openssl_error_string());
        }
        return $result === 1 ? true : false;
}
/**
* 取签名证书ID(SN)
* @return string
*/
public function getSignCertId()
{
        return $this->getCertIdPfx($this->config['signCertPath']);
}  
/**
* 签名数据
* 签名规则:
* 除signature域之外的所有项目都必须参加签名
* 根据key值按照字典排序,,然后用&拼接key=value形式待签名字符串;
* 然后对待签名字符串使用sha1算法做摘要;
* 用银联颁发的私钥对摘要做RSA签名操作
* 签名结果用base64编码后放在signature域
*
* @throws \InvalidArgumentException
* @return multitype|string
*/
private function sign() {
        $signData = $this->filterBeforSign();
        ksort($signData);
        $signQueryString = $this->arrayToString($signData);
        if($this->params['signMethod'] == 01) {
            //签名之前先用sha1处理
            //echo $signQueryString;exit;
            $datasha1 = sha1($signQueryString);
            $signed = $this->rsaSign($datasha1);
        } else {
            throw new \InvalidArgumentException('Nonsupport Sign Method');
        }
        return $signed;
}
/**
* 数组转换成字符串
* @param array $arr
* @return string
*/
private function arrayToString($arr)
{
        $str = '';
        foreach($arr as $key => $value) {
            $str .= $key.'='.$value.'&';
        }
        return substr($str, 0, strlen($str) - 1);
}
/**
* 过滤待签名数据
* signature域不参加签名
*
* @return array
*/
private function filterBeforSign()
{
        $tmp = $this->params;
        unset($tmp['signature']);
        return $tmp;
}
/**
* RSA签名数据,并base64编码
* @param string $data 待签名数据
* @return mixed
*/
private function rsaSign($data)
{
        $privatekey = $this->getSignPrivateKey();
        $result = openssl_sign($data, $signature, $privatekey);
        if($result) {
            return base64_encode($signature);
        }
        return false;
}
/**
* 取.pfx格式证书ID(SN)
* @return string
*/
private function getCertIdPfx($path)
{
        $pkcs12certdata = file_get_contents($path);
        openssl_pkcs12_read($pkcs12certdata, $certs, $this->config['signCertPwd']);
        $x509data = $certs['cert'];
        openssl_x509_read($x509data);
        $certdata = openssl_x509_parse($x509data);
        return $certdata['serialNumber'];
}
/**
* 取.cer格式证书ID(SN)
* @return string
*/
private function getCertIdCer($path)
{
        $x509data = file_get_contents($path);
        openssl_x509_read($x509data);
        $certdata = openssl_x509_parse($x509data);
        return $certdata['serialNumber'];
}
/**
* 取签名证书私钥
* @return resource
*/
private function getSignPrivateKey()
{
        $pkcs12 = file_get_contents($this->config['signCertPath']);
        openssl_pkcs12_read($pkcs12, $certs, $this->config['signCertPwd']);
        return $certs['pkey'];
}
/**
* 取验证签名证书
* @throws \InvalidArgumentException
* @return string
*/
private function getVerifyPublicKey()
{
        //先判断配置的验签证书是否银联返回指定的证书是否一致
        if($this->getCertIdCer($this->config['verifyCertPath']) != $this->params['certId']) {
            throw new \InvalidArgumentException('Verify sign cert is incorrect');
        }
        return file_get_contents($this->config['verifyCertPath']);      
    }
}
2. 配置示例    

复制代码 代码如下:

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