<?php

/* (c) 2005 Adam G-H, hide@address.com
This class is freeware. Feel free to modify it and use it in any way you see fit, however I retain the copyrights
and I would appreciate it if you send changes/bugfixes/ports to me. */

/* System requirements:
-Payflow Pro SDK from VeriSign (get it at http://manager.verisign.com), still in its original
directory structure
-A Linux server -- anybody want to write a Windows port?
-A copy of PHP that is NOT running in safe mode (you need to be able to run the system() and putenv() functions)
*/

/* Class PFPro - a Payflow Pro payment processing class that doesn't require built-in Payflow Pro support!
It does, however, rely on the presence of a properly-packaged pfpro executable, on a *nix system, with safe
mode disabled. Sorry, IIS folks. */

/* VERSION 1.01
This version adds a function called setComments. setComments lets you set the comment fields of the VeriSign
transaction. A Payflow Pro transaction can have up to two comments, so you can call setComments with either
one or two arguments, representing the first and second comments, respectively. */

class PFPro {
	var $cvv_level;
	var $avs_level;
	var $user;
	var $password;
	var $partner;
	var $vendor;
	var $price;
	var $exp_date;
	var $cvv;
	var $card;
	var $address;
	var $zip;
	var $trx_result = array();
	var $comments = array();

	function PFPro($path, $user, $password, $partner, $vendor)
	{
		if(!is_dir($path)) die("$path does not exist or is not a directory");
		else chdir($path);
		
		putenv("LD_LIBRARY_PATH=.:../lib/:\${LD_LIBRARY_PATH:-};");
		putenv("PFPRO_CERT_PATH=../certs/");
		
		$this->user = $user;
		$this->password = $password;
		$this->vendor = $vendor;
		$this->partner = $partner;
	}

	function getLastMessage()
	{
		if($this->trx_result['RESPMSG']) return $this->trx_result['RESPMSG'];
		else return false;
	}

	function getPNREF()
	{
		if($this->trx_result['PNREF']) return $this->trx_result['PNREF'];
		else return false;
	}

	function setSecurityLevel($avs = "medium", $cvv = "medium")
	{
		$this->cvv_level = $cvv;
		$this->avs_level = $avs;
	}

	function setComments($comment_1 = '', $comment_2 = '')
	{
		if($comment_1) $this->comments[0] = $comment_1;
		if($comment_2) $this->comments[1] = $comment_2;
	}

	function run_trx($param_array, $timeout)
	{
		/* THIS FUNCTION HAS YET TO BE DEBUGGED!! */

		if(!is_array($param_array)) die("Parameter list sent to run_trx is not an array");

		$keys = array_keys($param_array);
		$values = array_values($param_array);
		if(sizeof($keys) != sizeof($values)) die("Size error comparing keys and values during run_trx");

		$parms = array();
		for($i=0; $i<sizeof($keys); $i++) {
			$key = $keys[$i];
			$value = $values[$i];
			array_push($parms, "$key=$value");
		}

		$param_list = implode("&", $parms);

		if($this->card == "4111111111111111") $host = "test-payflow.verisign.com";
		else $host = "payflow.verisign.com";

		$return_str = exec("./pfpro $host 443 \"$param_list\" $timeout");
		parse_str($return_str, $this->trx_result);
	}

	function setCustomerInfo($address, $zip)
	{
		$this->address = $address;
		$this->zip = $zip;
	}

	function setPaymentInfo($card, $exp, $cvv, $price)
	{
		$this->card = $card;
		$this->exp_date = $exp;
		$this->cvv = $cvv;
		$this->price = $price;
	}

	function process($timeout = 60)
	{
		$params = array(
			'TRXTYPE' => 'S',
			'TENDER' => 'C',
			'USER' => $this->user,
			'PWD' => $this->password,
			'PARTNER' => $this->partner,
			'VENDOR' => $this->vendor,
			'STREET' => $this->address,
			'ZIP' => $this->zip,
			'AMT' => $this->price,
			'CVV2' => $this->cvv,
			'ACCT' => $this->card,
			'EXPDATE' => $this->exp_date
		);

		//Add comments if present
		if($this->comments[0]) $params['COMMENT1'] = $this->comments[0];
		if($this->comments[1]) $params['COMMENT2'] = $this->comments[1];

		$this->run_trx($params, $timeout);

		if($this->trx_result['RESULT'] != 0) return false;
		else return true;
	}

	function isInternational()
	{
		if($this->trx_result['IAVS'] == "Y") return true;
		else return false;
	}

	function void($pnref, $timeout = 60)
	{
		if(!$pnref) $pnref = $this->trx_result['PNREF'];

		$params = array(
			'TRXTYPE' => 'V',
			'TENDER' => 'C',
			'USER' => $this->user,
			'PWD' => $this->password,
			'PARTNER' => $this->partner,
			'VENDOR' => $this->vendor,
			'ORIGID' => $pnref
		);
		$this->run_trx($params, $timeout);

		if($this->trx_result['RESULT'] != 0) return false;
		else return true;
	}

	function credit($pnref, $timeout = 60)
	{
		if(!$pnref) $pnref = $this->trx_result['PNREF'];

		$params = array(
			'TRXTYPE' => 'C',
			'TENDER' => 'C',
			'USER' => $this->user,
			'PWD' => $this->password,
			'PARTNER' => $this->partner,
			'VENDOR' => $this->vendor,
			'ORIGID' => $pnref
		);
		$this->run_trx($params, $timeout);

		if($this->trx_result['RESULT'] != 0) return false;
		else return true;
	}

	function check_cvv()
	{
		if(!$this->trx_result['CVV2MATCH']) return false;
		else {
			if($this->cvv_level == "none")
				return true;
			else if($this->cvv_level == "medium" && $this->trx_result['CVV2MATCH'] == "N")
				return false;
			else if($this->cvv_level == "full" && $this->trx_result['CVV2MATCH'] != "Y")
				return false;
			else
				return true;
		}
	}

	function check_avs()
	{
		if(!$this->trx_result['AVSADDR'] || !$this->trx_result['AVSZIP']) return false;
		else {
			if($this->avs_level == "none")
				return true;
			else if($this->avs_level == "light" && $this->trx_result['AVSADDR'] == "N" && $this->trx_result['AVSZIP'] == "N")
				return false;
			else if($this->avs_level == "medium" && ($this->trx_result['AVSADDR'] == "N" || $this->trx_result['AVSZIP'] == "N"))
				return false;
			else if($this->avs_level == "full" && ($this->trx_result['AVSADDR'] != "Y" || $this->trx_result['AVSZIP'] != "Y"))
				return false;
			else
				return true;
		}
	}

	function fraudCheck()
	{
		if(!$this->trx_result['AVSADDR'] || !$this->trx_result['AVSZIP']) return false;
		else {
			if($this->check_avs() && $this->check_cvv())
				return true;
			else
				return false;
		}
	}
}

?>