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<?php
/**
* Class PayPal
*
* @version 1.0
* @author Martin Maly - http://www.php-suit.com
* @copyright (C) 2008 martin maly
* @see http://www.php-suit.com/paypal
* 2.10.2008 20:30:40
** Mofified for compatibility with GoCart, by Clear Sky Designs
*/
/*
* Copyright (c) 2008 Martin Maly - http://www.php-suit.com
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of the <organization> nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY MARTIN MALY ''AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL MARTIN MALY BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
class Easy {
private $API_USERNAME;
private $API_PASSWORD;
private $API_SIGNATURE;
private $RETURN_URL;
private $CANCEL_URL;
public $endpoint;
public $host;
private $gate;
private $currency;
private $CI;
function __construct() {
$this->endpoint = '/nvp';
$this->CI =& get_instance();
// retrieve settings
if ( $settings = $this->CI->Settings_model->get_settings('paypal_express') )
{
$this->API_USERNAME = $settings['username'];
$this->API_PASSWORD = $settings['password'];
$this->API_SIGNATURE = $settings['signature'];
$this->RETURN_URL = $settings["return_url"];
$this->CANCEL_URL = $settings["cancel_url"];
$this->currency = 'USD'; //$settings['currency'];
// Test mode?
if (!$settings['SANDBOX']) {
$this->host = "api-3t.paypal.com";
$this->gate = 'https://www.bespokefitshirt.com?';
} else {
//sandbox
$this->host = "api-3t.sandbox.paypal.com";
$this->gate = 'https://www.bespokefitshirt.com?';
}
}
}
/**
* @return string URL of the "success" page
*/
private function getReturnTo() {
//return sprintf("%s://%s/".$this->RETURN_URL,
//$this->getScheme(), $_SERVER['SERVER_NAME']);
return site_url($this->RETURN_URL);
}
/**
* @return string URL of the "cancel" page
*/
private function getReturnToCancel() {
//return sprintf("%s://%s/".$this->CANCEL_URL,
//$this->getScheme(), $_SERVER['SERVER_NAME']);
return site_url($this->CANCEL_URL);
}
/**
* @return HTTPRequest
*/
private function response($data){
//$r = new HTTPRequest($this->host, $this->endpoint, 'POST', true);
//$result = $r->connect($data);
$result = $this->CI->httprequests->connect($data);
if ($result<400) return $this->CI->httprequests;
return false;
}
private function buildQuery($data = array()){
$data['USER'] = $this->API_USERNAME;
$data['PWD'] = $this->API_PASSWORD;
$data['SIGNATURE'] = $this->API_SIGNATURE;
$data['VERSION'] = '56.0';
$query = http_build_query($data);
return $query;
}
/**
* Main payment function
*
* If OK, the customer is redirected to PayPal gateway
* If error, the error info is returned
*
* @param float $amount Amount (2 numbers after decimal point)
* @param string $desc Item description
* @param string $invoice Invoice number (can be omitted)
* @param string $currency 3-letter currency code (USD, GBP, CZK etc.)
*
* @return array error info
*/
public function doExpressCheckout($amount, $desc, $invoice=''){
$data = array(
'PAYMENTACTION' =>'Sale',
'AMT' => $amount,
'RETURNURL' => $this->getReturnTo(),
'CANCELURL' => $this->getReturnToCancel(),
'DESC'=> $desc,
'NOSHIPPING'=> "1",
'ALLOWNOTE'=> "1",
'CURRENCYCODE'=> $this->currency,
'METHOD' => 'SetExpressCheckout');
$data['CUSTOM'] = $amount.'|'.$this->currency.'|'.$invoice;
if ($invoice) $data['INVNUM'] = $invoice;
$query = $this->buildQuery($data);
$result = $this->response($query);
if (!$result) return false;
$response = $result->getContent();
$return = $this->responseParse($response);
$test = 'Success';
if ($test == 'Success') {
header('Location: '.$this->gate.'cmd=_express-checkout&useraction=commit&token='.$return['TOKEN'].'');
die();
}
return($return);
}
public function getCheckoutDetails($token){
$data = array(
'TOKEN' => $token,
'METHOD' =>'GetExpressCheckoutDetails');
$query = $this->buildQuery($data);
$result = $this->response($query);
if (!$result) return false;
$response = $result->getContent();
$return = $this->responseParse($response);
return($return);
}
public function doPayment()
{
$token = $_GET['token'];
$payer = $_GET['PayerID'];
$details = $this->getCheckoutDetails($token);
if (!$details) return false;
list($amount,$currency,$invoice) = explode('|',$details['CUSTOM']);
$data = array(
'PAYMENTACTION' => 'Sale',
'PAYERID' => $payer,
'TOKEN' =>$token,
'AMT' => $amount,
'CURRENCYCODE'=>$currency,
'METHOD' =>'DoExpressCheckoutPayment');
$query = $this->buildQuery($data);
$result = $this->response($query);
if (!$result) return false;
$response = $result->getContent();
$return = $this->responseParse($response);
/*
* [AMT] => 10.00
* [CURRENCYCODE] => USD
* [PAYMENTSTATUS] => Completed
* [PENDINGREASON] => None
* [REASONCODE] => None
*/
return($return);
}
private function getScheme() {
$scheme = 'http';
if (isset($_SERVER['HTTPS']) and $_SERVER['HTTPS'] == 'on') {
$scheme .= 's';
}
return $scheme;
}
private function responseParse($resp){
$a=explode("&", $resp);
$out = array();
foreach ($a as $v){
$k = strpos($v, '=');
if ($k) {
$key = trim(substr($v,0,$k));
$value = trim(substr($v,$k+1));
if (!$key) continue;
$out[$key] = urldecode($value);
} else {
$out[] = $v;
}
}
return $out;
}
}