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6.4

Error in custom script using PayPal IPN

Asked by EMB01 in PHP Scripting Language, E-Commerce, Miscellaneous Web Development

Tags: PHP, Internet Explorer, http://www.emarketbuilders.com, FAKE IPN RECEIVED

The script below is part of a script I use to process PayPal's IPN. Trouble is, I get the error "FAKE IPN RECEIVED" as it appears $result == 0. How does the $result == 0 when directly in the array it reads "[payer_status] => verified?" The function should read the eregi "VERIFIED" and therefore not return false, shouldn't it?

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             // Validating the IPN with PayPal
function verifyIPN($data)
{
	$postdata = "";
	$response = array();
	
	foreach($data as $var=>$val)
	{
		$postdata .= $var . "=" . urlencode($val) . "&";
	}
	$postdata .="cmd=_notify-validate";
	$fp=@fsockopen("https://www.paypal.com" ,"443", $errnum, $errstr, 30);
	if(!$fp)
	{
		return "$errnum: $errstr";
	} else
	{
		fputs($fp, "POST /cgi-bin/webscr HTTP/1.1\r\n");
		fputs($fp, "Host: https://www.paypal.com");
		fputs($fp, "Content-type: application/x-www-form-urlencoded\r\n");
		fputs($fp, "Content-length: ".strlen($postdata)."\r\n");
		fputs($fp, "Connections: close\r\n\r\n");
		fputs($fp, $postdata . "\r\n\r\n");
		while(!feof($fp)) { $response[]=@fgets($fp, 1024); }
		fclose($fp);
	}
	$response = implode("\n", $response);
	if(eregi("VERIFIED", $response))
	{
		return true;
	} else
	{
		return false;
	}
}
 
// Confirming product information
function confirmProduct($id, $name, $amount)
{
	if (!(ctype_digit($id) && is_numeric($amount)))
	{
		return false;
	} else
	{
		$name = mysql_escape_string($name);
	}
	$query = "SELECT id_prj FROM projects WHERE 'id_prj' = '$id' AND 'name_prj' = '$name' AND 'due_prj' = '$amount' LIMIT 1";
	if (rowCount($query) == 1)
	{
		return true;
	} else
	{
		return false;
	}
}
 
// Step 0. Record the transaction
ob_start();
echo date("D M j G:i:s T Y") . "\n";
print_r($_SERVER);
print_r($_POST);
$body = ob_get_clean();
file_put_contents("logs/log.txt", $body, FILE_APPEND);
 
// Step 1. Verify IPN with PayPal
$result = verifyIPN($_POST);
if ($result == 0)
{
	$subject = "FAKE IPN RECEIVED";
	$address = "admin@emarketbuilders.com";
	$headers = 
		"From: admin@emarketbuilders.com\r\n" . 
		"Reply-To: donotreply@emarketbuilders.com\r\n" . 
		"X-Mailer: PHP/" . phpversion();
	mail($address, $subject, $body, $headers);
	exit;
} else if ($result != 1)
{
	$subject = "Unable to validate IPN";
	$body = "If this payment notification is valid it will need to be manually processed\n $result\n $body";
	$address = "admin@emarketbuilders.com";
	$headers = 
		"From: admin@emarketbuilders.com\r\n" . 
		"Reply-To: donotreply@emarketbuilders.com\r\n" . 
		"X-Mailer: PHP/" . phpversion();
	mail($address, $subject, $body, $headers);
	exit;
}

           
         

20091111-EE-VQP-92 / EE_QW_2_20070628

Error in custom script using PayPal IPN

Asked by EMB01 in PHP Scripting Language, E-Commerce, Miscellaneous Web Development

Tags: PHP, Internet Explorer, http://www.emarketbuilders.com, FAKE IPN RECEIVED

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