Code:
<?php
class paypal_class {
var $last_error; // holds the last error encountered
var $ipn_log; // bool: log IPN results to text file?
var $ipn_log_file; // filename of the IPN log
var $ipn_response; // holds the IPN response from paypal
var $ipn_data = array(); // array contains the POST values for IPN
var $fields = array(); // array holds the fields to submit to paypal
public function paypal_class() {
// initialization constructor. Called when class is created.
$this->paypal_url = 'https://www.paypal.com/cgi-bin/webscr';
$this->last_error = '';
$this->ipn_log_file = '.ipn_results.log';
$this->ipn_log = true;
$this->ipn_response = '';
// populate $fields array with a few default values. See the paypal
// documentation for a list of fields and their data types. These defaul
// values can be overwritten by the calling script.
$this->add_field('rm','2'); // Return method = POST
$this->add_field('cmd','_xclick');
}
public function add_field($field, $value) {
$this->fields["$field"] = $value;
}
public function submit_paypal_post() {
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<title>Imagine: Paypal</title>
<link rel="stylesheet" href="http://wabbo.me/Files/Default/css/joy.css" type="text/css">
<style type="text/css">
#content{position:absolute;top:50%;left:50%;width:502px;height:150px;margin-top:-75px;margin-left:-200px;background:white;border:2px white solid;border-radius:3px;}
#content_box{width:484px;height:132px;border:1px #999 solid;border-radius:3px;padding:8px;}
.logo{float:left;cursor:pointer;}
#content_text{font-family:Arial;font-size:12px;text-align:left;padding:0 15px;}
</style>
</head>
<body>
<div id="content">
<center>
<form method="post" name="paypal_form" action="<?php echo $this->paypal_url; ?>">
<?php
foreach ($this->fields as $name => $value) {
echo "<input type=\"hidden\" name=\"$name\" value=\"$value\"/>\n";
}
?>
</form>
<div id="content_box">
<a class="logo"></a>
<hr style="margin-top: 51px;margin-bottom:15px;"/>
<div id="content_text">
<p>
<center>
Please be patient as you will be redirected to Paypal to complete your purchase.
Post a article on the Forum if you need any support.<br><br>
If you would like to go back to Imagine, please <a href="http://imaginehotel.net">click here</a>.
</center>
</p>
</div>
</div>
</center>
</div>
<script type="text/javascript">
window.onload = document.forms["paypal_form"].submit();
</script>
</body>
</html>
<?php
die;
}
public function validate_ipn() {
$url_parsed=parse_url($this->paypal_url);
$post_string = '';
foreach ($_POST as $field=>$value) {
$this->ipn_data["$field"] = $value;
$post_string .= $field.'='.urlencode(stripslashes($value)).'&';
}
$post_string.="cmd=_notify-validate"; // append ipn command
$fp = fsockopen ('ssl://www.paypal.com', 443, $errno, $errstr, 30);
if(!$fp) {
$this->last_error = "fsockopen error no. $errnum: $errstr";
$this->log_ipn_results(false);
return false;
} else {
// Post the data back to paypal
fputs($fp, "POST $url_parsed[path] HTTP/1.1\r\n");
fputs($fp, "Host: $url_parsed[host]\r\n");
fputs($fp, "Content-type: application/x-www-form-urlencoded\r\n");
fputs($fp, "Content-length: ".strlen($post_string)."\r\n");
fputs($fp, "Connection: close\r\n\r\n");
fputs($fp, $post_string . "\r\n\r\n");
while(!feof($fp)) {
$this->ipn_response .= fgets($fp, 1024);
}
fclose($fp); // close connection
}
if (eregi("VERIFIED",$this->ipn_response)) {
// Valid IPN transaction.
$this->log_ipn_results(true);
return true;
} else {
$this->last_error = 'IPN Validation Failed!';
$this->log_ipn_results(false);
return false;
}
}
public function log_ipn_results($success) {
if (!$this->ipn_log) return;
// Timestamp
$text = '['.date('m/d/Y g:i A').'] - ';
// Success or failure being logged?
if ($success) $text .= "SUCCESS!\n";
else $text .= 'FAIL: '.$this->last_error."\n";
// Log the POST variables
$text .= "IPN POST Vars from Paypal:\n";
foreach ($this->ipn_data as $key=>$value) {
$text .= "$key=$value, ";
}
// Log the response from the paypal server
$text .= "\nIPN Response from Paypal Server:\n ".$this->ipn_response;
// Write to log
$fp=fopen($this->ipn_log_file,'a');
fwrite($fp, $text . "\n\n");
fclose($fp);
}
public function dump_fields() {
echo "<h3>paypal_class->dump_fields() Output:</h3>";
echo "<table width=\"95%\" border=\"1\" cellpadding=\"2\" cellspacing=\"0\">
<tr>
<td bgcolor=\"black\"><b><font color=\"white\">Field Name</font></b></td>
<td bgcolor=\"black\"><b><font color=\"white\">Value</font></b></td>
</tr>";
ksort($this->fields);
foreach ($this->fields as $key => $value) {
echo "<tr><td>$key</td><td>".urldecode($value)." </td></tr>";
}
echo "</table><br>";
}
}
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Originally Posted by Nicki9
