分享微信支付v3版 php解密解密代码

//微信原生支付

class Wxpa系统开发mhkj33y

{

/*

* 支付(小程序支付)

* @param type $sn        订单编号

* @param type $money  金额

* @param type $openid  用户小程序open系统开发mhkj33id

* @return type

*/

public static function getPayParam($sn, $money, $openid)

{

$url = 'https://api.m系统开发mhkj33ch.weixin.qq.com/v3/pay/transactions/jsapi';

$notify_url = url('/api/weixin/notify');

$dat系统开发mhkj33a = [];

$data['appid'] = Action::config(CONFIG_WXXCX, 'app_id');

$data['mchid'系统开发mhkj33] = Action::config(CONFIG_WXXCX, 'mchid'); //商户号

$data['description'] = 'xxx'系统开发mhkj33; //描述？

$data['out_trade_no'] = $sn; //商户系统内部订单号

$data['time_expire'] = date('Y-m-系统开发mhkj33d') . 'T' . date('H:i:s', (time() + 1800)) . '+08:00'; //订单失效时间2018-06-0系统开发mhkj338T10:34:56+08:00

$data['notify_url'] = $notify_url; //异步通知接口地址

$data['amount'] = [&#39系统开发mhkj33;total' => $money * 100, 'currency' => 'CNY']; //金额

$data['payer'] = [&#3系统开发mhkj339;openid' => $openid]; //用户

$re = self::wxCurl($url, $data, 'POST');

if (!isset($re['p系统开发mhkj33repay_id'])) {

api_fail('参数获取失败');

}

$result = [];

$result['appId'] = Action::config系统开发mhkj33(CONFIG_WXXCX, 'app_id');

$result['timeStamp'] = (string)time();

$result['nonceStr系统开发mhkj33'] = uniqid();

$result['package'] = 'prepay_id=' . $re['prepay_id'];

$resu系统开发mhkj33lt['signType'] = 'RSA';

$result['paySign'] = self::getPaySign($result);

return系统开发mhkj33 $result;

}

/**

* 查询订单

* @param type $sn

*/

public static function select($sn, $return = false)

{

$mchid = A系统开发mhkj33ction::config(CONFIG_WXXCX, 'mchid'); //商户号

$url = 'https://api.mch.weixin.qq.com/v3/pay/系统开发mhkj33transactions/out-trade-no/' . $sn . '?mchid=' . $mchid;

$re = self::wxCurl($url, [], &#39系统开发mhkj33;GET');

if ($return) {

return $re;

}

if (isset($re['trade_state']) && $re['trade_state&#系统开发mhkj3339;] == 'SUCCESS') {

return true;

}

return false;

}

/**

* 关闭订单

* @param type $sn

*/

public static fun系统开发mhkj33ction close($sn)

{

$mchid = Action::config(CONFIG_WXXCX, 'mchid'); //商户号

$url = 'https://ap系统开发mhkj33i.mch.weixin.qq.com/v3/pay/transactions/out-trade-no/' . $sn . '/close';

$re = self::wxCu系统开发mhkj33rl($url, ['mchid'=>$mchid], 'POST');

return true;

}

/**

* 退款

* @param type $sn

*/

public st系统开发mhkj33atic function refund($order_sn,$refund_sn,$total,$refund,$msg='退款')

{

$url='https://api.mc系统开发mhkj33h.weixin.qq.com/v3/refund/domestic/refunds';

$data=[];

$data['notify_url']=url('ag/wei系统开发mhkj33xin/notify_refund');

$data['out_trade_no']=$order_sn;//订单号

$data['out_refund_no']=系统开发mhkj33$refund_sn;//退款单号

$data['reason']=$msg;

$data['amount']=['refund'=>$refund*100系统开发mhkj33,'total'=>$total*100,'currency'=>'CNY'];

$re = self::wxCurl($url, $data, &#39系统开发mhkj33;POST');

return $re;

}

//请求

public static function wxCurl($url, $data = [], $method = 'GET')系统开发mhkj33

{

$Authorization = self::getReSign($url, $data, $method);

$header = [

'Content-Type: application/js系统开发mhkj33on',

'Accept: application/json',

'User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64系统开发mhkj33) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.90 Safari/537.36 Edg/89.0.774.63',

&#39系统开发mhkj33;Authorization: ' . $Authorization

];

$redata = $data ? json_encode($data) : '';

$res = reC系统开发mhkj33url($url, $redata, $header);

return $res ? json_decode($res, true) : [];

}

//后端请求签名

public static functi系统开发mhkj33on getReSign($url, $data, $method = 'GET')

{

$url_parts = parse_url($url);

$canonical_url = ($u系统开发mhkj33rl_parts['path'] . (!empty($url_parts['query']) ? “?${url_parts['query']}” :系统开发mhkj33 “”));

$http_method = $method;

$timestamp = time();

$nonce = uniqid();

$body = $data ? json_encode($data系统开发mhkj33) : '';

$mchid = Action::config(CONFIG_WXXCX, 'mchid'); //商户id

$serial_no = Action::co系统开发mhkj33nfig(CONFIG_WXXCX, 'serial_no'); //证书编号

$private_key = self::getPrivateKey(BASE_PATH . 'c系统开发mhkj33ert/apiclient_key.pem'); //商户私钥

$message = $http_method . “\n” .

$canonical_url . “\n” .

$timestamp系统开发mhkj33 . “\n” .

$nonce . “\n” .

$body . “\n”;

openssl_sign($message, $raw_sign, $private_key, 'sha256With系统开发mhkj33RSAEncryption');

$sign = base64_encode($raw_sign);

$token = sprintf('mchid=”%s”,nonce_str=”%s”系统开发mhkj33,timestamp=”%d”,serial_no=”%s”,signature=”%s”', $mchid, $nonce, $timestamp, $serial_no, $sign);

r系统开发mhkj33eturn 'WECHATPAY2-SHA256-RSA2048 ' . $token;

}

//前端小程序签名

public static function getPaySign($res系统开发mhkj33ult)

{

$private_key = self::getPrivateKey(BASE_PATH . 'cert/apiclient_key.pem'); //商户私钥

$messag系统开发mhkj33e = $result['appId'] . “\n” .

$result['timeStamp'] . “\n” .

$result['nonceStr'系统开发mhkj33] . “\n” .

$result['package'] . “\n”;

openssl_sign($message, $raw_sign, $private_key, 'sha系统开发mhkj33256WithRSAEncryption');

$sign = base64_encode($raw_sign);

return $sign;

}

//验证签名

public static functi系统开发mhkj33on checkSign()

{

$header = Context::get('header');

$serial_no = $header['wechatpay-serial&#系统开发mhkj3339;] ?? ''; //微信平台序列号

$timeStamp = $header['wechatpay-timestamp'] ?? '';

$nonc系统开发mhkj33e = $header['wechatpay-nonce'] ?? '';

$body = Context::get('raw');

$wx_sign = 系统开发mhkj33$header['wechatpay-signature'] ?? '';

$wx_serial_no = Action::config(CONFIG_WXXCX, &#系统开发mhkj3339;wx_serial_no');//保存的序列号

if (!$serial_no || $wx_serial_no != $serial_no) {

\sff\Log::write('系统开发mhkj33签名过期');

return false;

}

$message = $timeStamp . “\n” .

$nonce . “\n” .

$body . “\n”;

$wx_sign = base64系统开发mhkj33_decode($wx_sign);

$public_key = self::getPublicKey(BASE_PATH . 'cert/wx_public_cert.pem'); /系统开发mhkj33/平台公钥

$res = openssl_verify($message, $wx_sign, $public_key, OPENSSL_ALGO_SHA256);

if ($res == 1) {

ret系统开发mhkj33urn true;

}

\sff\Log::write('验签失败');

return false;

}

//获取私钥

public static function getPrivateKey($系统开发mhkj33filepath)

{

return openssl_get_privatekey(file_get_contents($filepath));

}

//获取公钥

public static function 系统开发mhkj33getPublicKey($filepath)

{

return openssl_pkey_get_public(file_get_contents($filepath));

}

//加密数据

public s系统开发mhkj33tatic function getEncrypt($str)

{

//$str是待加密字符串

$public_key_path = BASE_PATH . 'cert/wx_public_cert系统开发mhkj33.pem'; //'平台证书路径';

$public_key = file_get_contents($public_key_path);

$encrypted = '&#系统开发mhkj3339;;

if (openssl_public_encrypt($str, $encrypted, $public_key, OPENSSL_PKCS1_OAEP_PADDING)) {

//base64系统开发mhkj33编码

$sign = base64_encode($encrypted);

} else {

throw new Exception('encrypt failed');

}

return $s系统开发mhkj33ign;

}

//解密数据

public static function decryptToString($ciphertext, $associatedData, $nonceStr)

{

$aesKey =系统开发mhkj33 Action::config(CONFIG_WXXCX, 'mch_keyv3'); //商户apiv3密钥解密

$str = base64_decode($ciphertext);

i系统开发mhkj33f (strlen($str) <= 16) {

return &#39;&#39;;

}

// ext-sodium (default installed on >= PHP 7.2)

return \so系统开发mhkj33dium_crypto_aead_aes256gcm_decrypt($str, $associatedData, $nonceStr, $aesKey);

}

//下载平台证书

public static系统开发mhkj33 function downCert()

{

$url = &#39;https://api.mch.weixin.qq.com/v3/certificates&#39;;

$re = self::wxCu系统开发mhkj33rl($url, [], &#39;GET&#39;);

if (!isset($re[&#39;data&#39;])) {

api_fail(&#39;获取证书失败&#39;);

}

$ciphertex系统开发mhkj33t = $re[&#39;data&#39;][0][&#39;encrypt_certificate&#39;][&#39;ciphertext&#39;];

$associatedData = $r系统开发mhkj33e[&#39;data&#39;][0][&#39;encrypt_certificate&#39;][&#39;associated_data&#39;];

$nonceStr = $re[&#39;系统开发mhkj33data&#39;][0][&#39;encrypt_certificate&#39;][&#39;nonce&#39;];

$data = self::decryptToString($ciphert系统开发mhkj33ext, $associatedData, $nonceStr);

if (!$data) {

api_fail(&#39;获取证书解密失败&#39;);

}

file_put_contents(BASE_P系统开发mhkj33ATH . &#39;/cert/wx_public_cert.pem&#39;, $data);

return $data;

}

}

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