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   1  <?php
   2  /**

   3   * ipn_main_handler.php callback handler for paypal IPN payment method

   4   *

   5   * @package paymentMethod

   6   * @copyright Copyright 2003-2005 Zen Cart Development Team

   7   * @copyright Portions Copyright 2003 osCommerce

   8   * @license http://www.zen-cart.com/license/2_0.txt GNU Public License V2.0

   9   * @version $Id: ipn_main_handler.php 3475 2006-04-22 04:35:09Z ajeh $

  10   */
  11  /**

  12   * require general paypal functions

  13   */
  14  require ('includes/modules/payment/paypal/paypal_functions.php');
  15  /**

  16   * require custom paypal application_top.php

  17   */
  18  require ('includes/modules/payment/paypal/ipn_application_top.php');
  19  /**

  20   * require language defines

  21   */
  22  if (!isset($_SESSION['language'])) $_SESSION['language'] = 'english';
  23  if (file_exists(DIR_WS_LANGUAGES . $_SESSION['language'] . '/' . $template_dir_select . 'checkout_process.php')) {
  24    require(DIR_WS_LANGUAGES . $_SESSION['language'] . '/' . $template_dir_select . 'checkout_process.php');
  25  } else {
  26    require(DIR_WS_LANGUAGES . $_SESSION['language'] . '/checkout_process.php');
  27  }
  28  //require('includes/languages/english/checkout_process.php');

  29  
  30  $scheme = 'http://';
  31  if (ENABLE_SSL == 'true') $scheme = 'http://';
  32  //Parse url

  33  $web = parse_url($scheme . MODULE_PAYMENT_PAYPAL_HANDLER);
  34  
  35  //build post string

  36  foreach($_POST as $i=>$v) {
  37    $postdata .= $i . "=" . urlencode(stripslashes($v)) . "&";
  38  }
  39  
  40  $postdata .= "cmd=_notify-validate";
  41  
  42  if (MODULE_PAYMENT_PAYPAL_TESTING == 'Test') {
  43    $info = "VERIFIED";
  44  } else {
  45    //Set the port number

  46    if($web['scheme'] == "https") {
  47      $web['port']="443";  $ssl="ssl://";
  48    } else {
  49      $web['port']="80";
  50    }
  51  
  52    //Create paypal connection

  53    $fp=@fsockopen($ssl . $web['host'],$web['port'],$errnum,$errstr,30);
  54  
  55    if(!$fp) {
  56      ipn_debug_email('IPN FATAL ERROR::Could not establish fsockopen. Host Details = ' . $ssl . $web['host'] . ':' . $web['port']);
  57      die();
  58    }
  59  
  60  
  61    //Post Data

  62  
  63    fputs($fp, "POST $web[path] HTTP/1.1\r\n");
  64    fputs($fp, "Host: $web[host]\r\n");
  65    fputs($fp, "Content-type: application/x-www-form-urlencoded\r\n");
  66    fputs($fp, "Content-length: ".strlen($postdata)."\r\n");
  67    fputs($fp, "Connection: close\r\n\r\n");
  68    fputs($fp, $postdata . "\r\n\r\n");
  69  
  70    //loop through the response from the server

  71    while(!feof($fp)) {
  72      $info[]=@fgets($fp, 1024);
  73    }
  74  
  75    //close fp - we are done with it

  76    fclose($fp);
  77  
  78    //break up results into a string

  79    $info = implode(",",$info);
  80  }
  81  
  82  ipn_debug_email('IPN INFO - POST VARS  ' . "\n" . $postdata);
  83  ipn_debug_email('IPN INFO - CURL INFO  ' . "\n" . $info);
  84  
  85  
  86  if (SEND_PAYPAL_TRANS_DETAILS == 'Yes') ipn_debug_email('IPN INFO::Transaction Details # ' . $info, '', true);
  87  
  88  if (!ipn_validate_transaction($info, $_POST) === true) {
  89    ipn_debug_email('IPN FATAL ERROR::Transaction did not validate');
  90    die();
  91  }
  92  /**

  93   * reaquire shipping class

  94   */
  95  require(DIR_WS_CLASSES . 'shipping.php');
  96  /**

  97   * require payment class

  98   */
  99  require(DIR_WS_CLASSES . 'payment.php');
 100  $payment_modules = new payment($_SESSION['payment']);
 101  $shipping_modules = new shipping($_SESSION['shipping']);
 102  /**

 103   * require order class

 104   */
 105  require(DIR_WS_CLASSES . 'order.php');
 106  $order = new order();
 107  /**

 108   * require order_total class

 109   */
 110  require(DIR_WS_CLASSES . 'order_total.php');
 111  $order_total_modules = new order_total();
 112  $order_totals = $order_total_modules->process();
 113  
 114  $txn_type = ipn_test_txn_uniqueness();
 115  ipn_debug_email('IPN NOTICE:set transaction type ' . $txn_type . ' postdata=' . $postdata);
 116  // For now we filter out subscription payments

 117  if ($_POST['txn_type'] == 'subcr_payment') {
 118    ipn_debug_email('IPN NOTICE: Subscription payemnt - Filter for now');
 119    die();
 120  }
 121  switch ($txn_type) {
 122    case 'unique':
 123    if (valid_payment($info, $order->info['total'], $_SESSION['currency']) === false) {
 124      die();
 125    }
 126    if ($ipnFoundSession === false) {
 127      ipn_debug_email('IPN NOTICE: Unique but no session - Must be a one of personal payment');
 128      die();
 129    }
 130    $new_order_id = $order->create($order_totals);
 131    $paypal_order = ipn_create_order_array($new_order_id, $txn_type);
 132    zen_db_perform(TABLE_PAYPAL, $paypal_order);
 133    $insert_id = $db->Insert_ID();
 134    $paypal_order_history = ipn_create_order_history_array($insert_id);
 135    zen_db_perform(TABLE_PAYPAL_PAYMENT_STATUS_HISTORY, $paypal_order_history);
 136    $new_status = MODULE_PAYMENT_PAYPAL_ORDER_STATUS_ID;
 137    if ($_POST['payment_status'] =='Pending') {
 138      $new_status = MODULE_PAYMENT_PAYPAL_PROCESSING_STATUS_ID;
 139      $db->Execute("update " . TABLE_ORDERS  . "
 140                      set orders_status = " . MODULE_PAYMENT_PAYPAL_PROCESSING_STATUS_ID . "
 141                      where orders_id = '" . $new_order_id . "'");
 142    }
 143    $sql_data_array = array('orders_id' => $new_order_id,
 144                            'orders_status_id' => $new_status,
 145                            'date_added' => 'now()',
 146                            'comments' => 'PayPal status: ' . $_POST['payment_status'] . ' ' . $_POST['pending_reason']. ' @ '.$_POST['payment_date'] . ' Parent Trans ID:' . $_POST['parent_txn_id'] . ' Trans ID:' . $_POST['txn_id'] . ' Amount: ' . $_POST['mc_gross'],
 147                            'customer_notified' => false
 148    );
 149  
 150    zen_db_perform(TABLE_ORDERS_STATUS_HISTORY, $sql_data_array);
 151    $order->create_add_products($new_order_id, 2);
 152    $order->send_order_email($new_order_id, 2);
 153    $_SESSION['cart']->reset(true);
 154    break;
 155    case 'parent':
 156    case 'echeck-denied':
 157    case 'echeck-cleared':
 158    if ($txn_type == 'parent') {
 159      $ipn_id = $db->Execute("select zen_order_id, paypal_ipn_id
 160                                from " . TABLE_PAYPAL . "
 161                                where txn_id = '" . $_POST['parent_txn_id'] . "'");
 162    } else {
 163      $ipn_id = $db->Execute("select zen_order_id, paypal_ipn_id
 164                                from " . TABLE_PAYPAL . "
 165                                where txn_id = '" . $_POST['txn_id'] . "'");
 166    }
 167    if ($txn_type == 'parent') {
 168      $paypal_order = ipn_create_order_array($ipn_id->fields['zen_order_id'], $txn_type);
 169      zen_db_perform(TABLE_PAYPAL, $paypal_order);
 170    } else {
 171     $paypal_order = ipn_create_order_update_array($txn_type);
 172     zen_db_perform(TABLE_PAYPAL, $paypal_order, 'update', "txn_id='" . $_POST['txn_id'] . "'");
 173    }
 174    $paypal_order_history = ipn_create_order_history_array($ipn_id->fields['paypal_ipn_id']);
 175  //payment_status=Refunded

 176    if ($_POST['payment_status'] == 'Refunded' || $_POST['payment_status'] == 'Denied') {
 177      $new_status = MODULE_PAYMENT_PAYPAL_REFUND_ORDER_STATUS_ID;
 178    } elseif ($txn_type=='echeck-cleared') {
 179      $new_status = MODULE_PAYMENT_PAYPAL_ORDER_STATUS_ID;
 180    }
 181    ipn_debug_email('IPN NOTICE:set new status ' . $new_status . ' for reason_code = ' . $_POST['pending_reason'] . " order id = " .  $ipn_id->fields['zen_order_id']);
 182  
 183    if ($_POST['payment_status'] == 'Refunded' || $_POST['payment_status'] == 'Denied' || $txn_type=='echeck-cleared') {
 184      $db->Execute("update " . TABLE_ORDERS  . "
 185                      set orders_status = '" . $new_status . "'
 186                      where orders_id = '" . $ipn_id->fields['zen_order_id'] . "'");
 187  
 188      $sql_data_array = array('orders_id' => $ipn_id->fields['zen_order_id'],
 189      'orders_status_id' => $new_status,
 190      'date_added' => 'now()',
 191      'comments' => 'PayPal status: ' . $_POST['payment_status'] . ' ' . ' @ '.$_POST['payment_date'] . ' Parent Trans ID:' . $_POST['parent_txn_id'] . ' Trans ID:' . $_POST['txn_id'] . ' Amount: ' . $_POST['mc_gross'],
 192      'customer_notified' => false
 193      );
 194  
 195      zen_db_perform(TABLE_ORDERS_STATUS_HISTORY, $sql_data_array);
 196    }
 197    break;
 198    default:
 199    ipn_debug_email('IPN WARNING:Could not establish txn type ' . $txn_type . ' postdata=' . $postdata);
 200  }
 201  ?>