Server : Apache/2.4.6 (CentOS) OpenSSL/1.0.2k-fips PHP/7.4.20 System : Linux st2.domain.com 3.10.0-1127.10.1.el7.x86_64 #1 SMP Wed Jun 3 14:28:03 UTC 2020 x86_64 User : apache ( 48) PHP Version : 7.4.20 Disable Function : NONE Directory : /var/www/html/thietkewebvumi.com/lib/payment/ |
<?php
/**
* Paypal Class
*
* Integrate the Paypal payment gateway in your site using this easy
* to use library. Just see the example code to know how you should
* proceed. Btw, this library does not support the recurring payment
* system. If you need that, drop me a note and I will send to you.
*
* @package Payment Gateway
* @category Library
* @author Md Emran Hasan <phpfour@gmail.com>
* @link http://www.phpfour.com
*/
include_once ('PaymentGateway.php');
class Paypal extends PaymentGateway
{
/**
* Initialize the Paypal gateway
*
* @param none
* @return void
*/
public function __construct()
{
parent::__construct();
// Some default values of the class
$this->gatewayUrl = 'https://www.paypal.com/cgi-bin/webscr';
$this->ipnLogFile = 'paypal.ipn_results.log';
// Populate $fields array with a few default
$this->addField('rm', '2'); // Return method = POST
$this->addField('cmd', '_xclick');
}
/**
* Enables the test mode
*
* @param none
* @return none
*/
public function enableTestMode()
{
$this->testMode = TRUE;
$this->gatewayUrl = 'https://www.sandbox.paypal.com/cgi-bin/webscr';
}
/**
* Validate the IPN notification
*
* @param none
* @return boolean
*/
public function validateIpn()
{
// parse the paypal URL
$urlParsed = parse_url($this->gatewayUrl);
// generate the post string from the _POST vars
$postString = '';
foreach ($_POST as $field=>$value)
{
$this->ipnData["$field"] = $value;
$postString .= $field .'=' . urlencode(stripslashes($value)) . '&';
}
$postString .="cmd=_notify-validate"; // append ipn command
// open the connection to paypal
$fp = fsockopen($urlParsed[host], "80", $errNum, $errStr, 30);
if(!$fp)
{
// Could not open the connection, log error if enabled
$this->lastError = "fsockopen error no. $errNum: $errStr";
$this->logResults(false);
return false;
}
else
{
// Post the data back to paypal
fputs($fp, "POST $urlParsed[path] HTTP/1.1\r\n");
fputs($fp, "Host: $urlParsed[host]\r\n");
fputs($fp, "Content-type: application/x-www-form-urlencoded\r\n");
fputs($fp, "Content-length: " . strlen($postString) . "\r\n");
fputs($fp, "Connection: close\r\n\r\n");
fputs($fp, $postString . "\r\n\r\n");
// loop through the response from the server and append to variable
while(!feof($fp))
{
$this->ipnResponse .= fgets($fp, 1024);
}
fclose($fp); // close connection
}
if (eregi("VERIFIED", $this->ipnResponse))
{
// Valid IPN transaction.
$this->logResults(true);
return true;
}
else
{
// Invalid IPN transaction. Check the log for details.
$this->lastError = "IPN Validation Failed . $urlParsed[path] : $urlParsed[host]";
$this->logResults(false);
return false;
}
}
}