www.gusucode.com > ShopEx481 & PHPWind 整合版码程序 > plugins/payment/pay.udpay.server.php

    <?php
require('paymentPlugin.php');
class pay_udpay extends paymentPlugin{
	function pay_udpay_callback($in,&$paymentId,&$money,&$message,&$tradeno){
		$txCode = trim($in['?txCode']);	//商家ID
		$merchantId = trim($in['merchantId']);	//商家ID
		$transDate = trim($in['transDate']);					//交易日期
		$tradeno = $transFlow = trim($in['transFlow']);			//交易号
		$orderId = trim($in['orderId']);			//交易号
		$curCode = trim($in['curCode']);				//交易金额
		$money = $amount = trim($in['amount']);				//交易金额
		$orderInfo = trim($in['orderInfo']);				//交易金额
		$whtFlow = trim($in['whtFlow']);				//交易金额
		$success = trim($in['success']);			//交易结果，"Y"表示成功，"N"表示失败
		$errorType = trim($in['errorType']);			//交易结果，"Y"表示成功，"N"表示失败
		$sign = trim($in['sign']);
		$money = $amount;
		$key = $this->getConf($orderId, 'PrivateKey');

		$msg = "txCode=".$txCode."&merchantId=".$merchantId."&transDate=".$transDate
				."&transFlow=".$transFlow."&orderId=".$orderId."&curCode=".$curCode."&amount=".$amount
				."&orderInfo=".$orderInfo."&comment=&whtFlow=".$whtFlow."&success=".$success."&errorType=".$errorType;

		if (!$this->getConf($orderId, 'udpay')){
			echo("read key file error!");
			exit;
		}

		$arr_key = file(dirname(__FILE__)."/../plugin/paykey/udpay/udpay.key");
		$privatekey = substr(trim($arr_key[1]), 19);
		$privateModulus = substr(trim($arr_key[2]), 23);
		$privateExponent = substr(trim($arr_key[3]), 24);
		$publicKey = substr(trim($arr_key[4]), 14);
		$publicModulus = substr(trim($arr_key[5]), 18);
		$publicExponent = substr(trim($arr_key[6]), 19);

		$verifySigature = verifySigature($msg, $sign, $privateExponent, $privateModulus);
		if ($verifySigature == 0){
			switch ($success){
				//成功支付
				case "Y":
					return PAY_SUCCESS;
					break;
				//支付失败
				case "N":
					return PAY_ERROR;
					break;
			}
		}else{
			return PAY_FAILED;
		}

	}
}
function pay_UDPAY_relay($status){
	switch ($status){
		case PAY_FAILED:
			echo "fail";
			break;
		case PAY_SUCCESS:
			echo "received";
			break;
		case PAY_ERROR:
			echo "fail";
			break;
	}
}

function generateSigature($message, $exponent, $modulus){          
	 $md5Message = md5($message);   
	 $fillStr = "01ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff003020300c06082a864886f70d020505000410";                 
	 $md5Message = $fillStr.$md5Message;
	 $intMessage = bin2int(hex2bin($md5Message));
	 $intE = bin2int(hex2bin($exponent));
	 $intM = bin2int(hex2bin($modulus));
	 $intResult = powmod($intMessage, $intE, $intM);
	 $hexResult = bin2hex(int2bin($intResult));
	 return $hexResult;
}                                                                               

function verifySigature($message, $sign, $exponent, $modulus){   
	  $intSign = bin2int(hex2bin($sign));
	  $intExponent = bin2int(hex2bin($exponent));
	  $intModulus = bin2int(hex2bin($modulus));
	$intResult = powmod($intSign, $intExponent, $intModulus);                       
	$hexResult = bin2hex(int2bin($intResult));       
	$md5Message = md5($message);        
	if ($md5Message == substr($hexResult, -32)) {
	  return "1";                                     
	} else return "0";
}                                                                               


function hex2bin($hexdata){    
   for ($i=0;$i<strlen($hexdata);$i+=2) { 
	 $bindata=chr(hexdec(substr($hexdata,$i,2))).$bindata; 
   } 
   return $bindata; 
}

function bin2int($str){
	$result = '0';
	$n = strlen($str);
	do {
		$result = bcadd(bcmul($result, '256'), ord($str{--$n}));
	} while ($n > 0);
	return $result;
}

function int2bin($num){
	$result = '';
	do {
		$result= chr(bcmod($num, '256')).$result;
		$num = bcdiv($num, '256');
	} while (bccomp($num, '0'));
	return $result;
}

function powmod($num, $pow, $mod){
  $result = '1';
  do {
	  if (!bccomp(bcmod($pow, '2'), '1')) {
		  $result = bcmod(bcmul($result, $num), $mod);
	  }
	  $num = bcmod(bcpow($num, '2'), $mod);
	  $pow = bcdiv($pow, '2');
  } while (bccomp($pow, '0'));
  return $result;
}

?>