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   1  <?php
   2  /**

   3   * Payment Class.

   4   *

   5   * @package classes

   6   * @copyright Copyright 2003-2006 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: payment.php 5382 2006-12-24 18:22:47Z drbyte $

  10   */
  11  if (!defined('IS_ADMIN_FLAG')) {
  12    die('Illegal Access');
  13  }
  14  /**

  15   * Payment Class.

  16   * This class interfaces with various payment modules

  17   * 

  18   * @package classes

  19   */
  20  class payment extends base {
  21    var $modules, $selected_module;
  22  
  23    // class constructor

  24    function payment($module = '') {
  25      global $PHP_SELF, $language, $credit_covers;
  26  
  27      if (defined('MODULE_PAYMENT_INSTALLED') && zen_not_null(MODULE_PAYMENT_INSTALLED)) {
  28        $this->modules = explode(';', MODULE_PAYMENT_INSTALLED);
  29  
  30        $include_modules = array();
  31  
  32        if ( (zen_not_null($module)) && (in_array($module . '.' . substr($PHP_SELF, (strrpos($PHP_SELF, '.')+1)), $this->modules)) ) {
  33          $this->selected_module = $module;
  34  
  35          $include_modules[] = array('class' => $module, 'file' => $module . '.php');
  36        } else {
  37          reset($this->modules);
  38  
  39          // Free Payment Only shows

  40          if (zen_get_configuration_key_value('MODULE_PAYMENT_FREECHARGER_STATUS') and ($_SESSION['cart']->show_total()==0 and $_SESSION['shipping']['cost']== 0)) {
  41            $this->selected_module = $module;
  42            if (file_exists(DIR_FS_CATALOG . DIR_WS_MODULES . '/payment/' . 'freecharger.php')) {
  43              $include_modules[] = array('class'=> 'freecharger', 'file' => 'freecharger.php');
  44            }
  45          } else {
  46            // All Other Payment Modules show

  47            while (list(, $value) = each($this->modules)) {
  48              // double check that the module really exists before adding to the array

  49              if (file_exists(DIR_FS_CATALOG . DIR_WS_MODULES . '/payment/' . $value)) {
  50                $class = substr($value, 0, strrpos($value, '.'));
  51                // Don't show Free Payment Module

  52                if ($class !='freecharger') {
  53                  $include_modules[] = array('class' => $class, 'file' => $value);
  54                }
  55              }
  56            }
  57          }
  58        }
  59  
  60        for ($i=0, $n=sizeof($include_modules); $i<$n; $i++) {
  61          //          include(DIR_WS_LANGUAGES . $_SESSION['language'] . '/modules/payment/' . $include_modules[$i]['file']);

  62          include_once(zen_get_file_directory(DIR_WS_LANGUAGES . $_SESSION['language'] . '/modules/payment/', $include_modules[$i]['file'], 'false'));
  63          include_once(DIR_WS_MODULES . 'payment/' . $include_modules[$i]['file']);
  64  
  65          $GLOBALS[$include_modules[$i]['class']] = new $include_modules[$i]['class'];
  66        }
  67  
  68        // if there is only one payment method, select it as default because in

  69        // checkout_confirmation.php the $payment variable is being assigned the

  70        // $_POST['payment'] value which will be empty (no radio button selection possible)

  71        if ( (zen_count_payment_modules() == 1) && (!isset($_SESSION['payment']) || (isset($_SESSION['payment']) && !is_object($_SESSION['payment']))) ) {
  72          if (!$credit_covers) $_SESSION['payment'] = $include_modules[0]['class'];
  73        }
  74  
  75        if ( (zen_not_null($module)) && (in_array($module, $this->modules)) && (isset($GLOBALS[$module]->form_action_url)) ) {
  76          $this->form_action_url = $GLOBALS[$module]->form_action_url;
  77        }
  78      }
  79    }
  80  
  81    // class methods

  82    /* The following method is needed in the checkout_confirmation.php page

  83    due to a chicken and egg problem with the payment class and order class.

  84    The payment modules needs the order destination data for the dynamic status

  85    feature, and the order class needs the payment module title.

  86    The following method is a work-around to implementing the method in all

  87    payment modules available which would break the modules in the contributions

  88    section. This should be looked into again post 2.2.

  89    */
  90    function update_status() {
  91      if (is_array($this->modules)) {
  92        if (is_object($GLOBALS[$this->selected_module])) {
  93          if (method_exists($GLOBALS[$this->selected_module], 'update_status')) {
  94            $GLOBALS[$this->selected_module]->update_status();
  95          }
  96        }
  97      }
  98    }
  99  
 100    function javascript_validation() {
 101      $js = '';
 102      if (is_array($this->modules) && sizeof($this->selection()) > 0) {
 103        $js = '<script language="javascript"  type="text/javascript"><!-- ' . "\n" .
 104        'function check_form() {' . "\n" .
 105        '  var error = 0;' . "\n" .
 106        '  var error_message = "' . JS_ERROR . '";' . "\n" .
 107        '  var payment_value = null;' . "\n" .
 108        '  if (document.checkout_payment.payment) {' . "\n" .
 109        '    if (document.checkout_payment.payment.length) {' . "\n" .
 110        '      for (var i=0; i<document.checkout_payment.payment.length; i++) {' . "\n" .
 111        '        if (document.checkout_payment.payment[i].checked) {' . "\n" .
 112        '          payment_value = document.checkout_payment.payment[i].value;' . "\n" .
 113        '        }' . "\n" .
 114        '      }' . "\n" .
 115        '    } else if (document.checkout_payment.payment.checked) {' . "\n" .
 116        '      payment_value = document.checkout_payment.payment.value;' . "\n" .
 117        '    } else if (document.checkout_payment.payment.value) {' . "\n" .
 118        '      payment_value = document.checkout_payment.payment.value;' . "\n" .
 119        '    }' . "\n" .
 120        '  }' . "\n\n";
 121  
 122        reset($this->modules);
 123        while (list(, $value) = each($this->modules)) {
 124          $class = substr($value, 0, strrpos($value, '.'));
 125          if ($GLOBALS[$class]->enabled) {
 126            $js .= $GLOBALS[$class]->javascript_validation();
 127          }
 128        }
 129  
 130        $js .= "\n" . '  if (payment_value == null && submitter != 1) {' . "\n" .
 131        '    error_message = error_message + "' . JS_ERROR_NO_PAYMENT_MODULE_SELECTED . '";' . "\n" .
 132        '    error = 1;' . "\n" .
 133        '  }' . "\n\n" .
 134        '  if (error == 1 && submitter != 1) {' . "\n" .
 135        '    alert(error_message);' . "\n" .
 136        '    return false;' . "\n" .
 137        '  } else {' . "\n" .
 138        '    return true;' . "\n" .
 139        '  }' . "\n" .
 140        '}' . "\n" .
 141        '//--></script>' . "\n";
 142      }
 143  
 144      return $js;
 145    }
 146  
 147    function selection() {
 148      $selection_array = array();
 149      if (is_array($this->modules)) {
 150        reset($this->modules);
 151        while (list(, $value) = each($this->modules)) {
 152          $class = substr($value, 0, strrpos($value, '.'));
 153          if ($GLOBALS[$class]->enabled) {
 154            $selection = $GLOBALS[$class]->selection();
 155            if (is_array($selection)) $selection_array[] = $selection;
 156          }
 157        }
 158      }
 159      return $selection_array;
 160    }
 161    function in_special_checkout() {
 162      $result = false;
 163      if (is_array($this->modules)) {
 164        reset($this->modules);
 165        while (list(, $value) = each($this->modules)) {
 166          $class = substr($value, 0, strrpos($value, '.'));
 167          if ($GLOBALS[$class]->enabled && method_exists($GLOBALS[$class], 'in_special_checkout')) {
 168            $module_result = $GLOBALS[$class]->in_special_checkout();
 169            if ($module_result === true) $result = true;
 170          }
 171        }
 172      }
 173      return $result;
 174    }
 175  
 176    function pre_confirmation_check() {
 177      global $credit_covers, $payment_modules;
 178      if (is_array($this->modules)) {
 179        if (is_object($GLOBALS[$this->selected_module]) && ($GLOBALS[$this->selected_module]->enabled) ) {
 180          if ($credit_covers) {
 181            $GLOBALS[$this->selected_module]->enabled = false;
 182            $GLOBALS[$this->selected_module] = NULL;
 183            $payment_modules = '';
 184          } else {
 185            $GLOBALS[$this->selected_module]->pre_confirmation_check();
 186          }
 187        }
 188      }
 189    }
 190  
 191    function confirmation() {
 192      if (is_array($this->modules)) {
 193        if (is_object($GLOBALS[$this->selected_module]) && ($GLOBALS[$this->selected_module]->enabled) ) {
 194          return $GLOBALS[$this->selected_module]->confirmation();
 195        }
 196      }
 197    }
 198  
 199    function process_button() {
 200      if (is_array($this->modules)) {
 201        if (is_object($GLOBALS[$this->selected_module]) && ($GLOBALS[$this->selected_module]->enabled) ) {
 202          return $GLOBALS[$this->selected_module]->process_button();
 203        }
 204      }
 205    }
 206  
 207    function before_process() {
 208      if (is_array($this->modules)) {
 209        if (is_object($GLOBALS[$this->selected_module]) && ($GLOBALS[$this->selected_module]->enabled) ) {
 210          return $GLOBALS[$this->selected_module]->before_process();
 211        }
 212      }
 213    }
 214  
 215    function after_process() {
 216      if (is_array($this->modules)) {
 217        if (is_object($GLOBALS[$this->selected_module]) && ($GLOBALS[$this->selected_module]->enabled) ) {
 218          return $GLOBALS[$this->selected_module]->after_process();
 219        }
 220      }
 221    }
 222  
 223    function after_order_create($zf_order_id) {
 224      if (is_array($this->modules)) {
 225        if (is_object($GLOBALS[$this->selected_module]) && ($GLOBALS[$this->selected_module]->enabled) && (method_exists($GLOBALS[$this->selected_module], 'after_order_create'))) {
 226          return $GLOBALS[$this->selected_module]->after_order_create($zf_order_id);
 227        }
 228      }
 229    }
 230  
 231    function admin_notification($zf_order_id) {
 232      if (is_array($this->modules)) {
 233        if (is_object($GLOBALS[$this->selected_module]) && ($GLOBALS[$this->selected_module]->enabled) && (method_exists($GLOBALS[$this->selected_module], 'admin_notification'))) {
 234          return $GLOBALS[$this->selected_module]->admin_notification($zf_order_id);
 235        }
 236      }
 237    }
 238  
 239    function get_error() {
 240      if (is_array($this->modules)) {
 241        if (is_object($GLOBALS[$this->selected_module]) && ($GLOBALS[$this->selected_module]->enabled) ) {
 242          return $GLOBALS[$this->selected_module]->get_error();
 243        }
 244      }
 245    }
 246  }
 247  ?>