<?php
/*
  osCommRes, Services Oline 
http://www.oscommres.com 
Copyright (c) 2005 osCommRes 

Freeway eCommerce 
http://www.zac-ware.com/freeway 
Copyright (c) 2007 ZacWare 

Released under the GNU General Public License 
*/
// Check to ensure this file is included in Freeway!
defined('_FEXEC') or die();
  class authorizenet {
    var $code, $title, $description, $enabled;

// class constructor
	function authorizenet() {
		global $order;
		
		$this->code = 'authorizenet';
		$name = "Authorize.net";
		$image = "";
		if(MODULE_PAYMENT_AUTHORIZENET_DISPLAY_NAME != "MODULE_PAYMENT_AUTHORIZENET_DISPLAY_NAME")$name = MODULE_PAYMENT_AUTHORIZENET_DISPLAY_NAME;
		if(MODULE_PAYMENT_AUTHORIZENET_IMAGE != "MODULE_PAYMENT_AUTHORIZENET_IMAGE")$image = MODULE_PAYMENT_AUTHORIZENET_IMAGE;
		if(DIR_WS_ADMIN != "DIR_WS_ADMIN" && DIR_WS_ADMIN != "")$path = "../";
		if($image != "" && file_exists($path . DIR_WS_IMAGES . $image)){
			$image = '<img src="' . HTTP_SERVER . DIR_WS_HTTP_CATALOG . DIR_WS_IMAGES . $image . '" width="103" height="33">';
		}else{
			$image_array = array('.gif','.jpg','.jpeg','.png');
			$image_check = true;
			for($i=0;$i<sizeof($image_array);$i++){
				if($image_check && $image != "" && file_exists($path . DIR_WS_IMAGES . $image . $image_array[$i])){
					$image = '<img src="' . HTTP_SERVER . DIR_WS_HTTP_CATALOG . DIR_WS_IMAGES . $image . $image_array[$i] . '" width="103" height="33">';
					$image_check = false;
				}
			}
			if($image_check)$image = "";
		}
		define('MODULE_PAYMENT_AUTHORIZENET_TEXT_TITLE', $name . '&nbsp;&nbsp;' . $image);
		define('MODULE_PAYMENT_AUTHORIZENET_TEXT_TEXT_TITLE', $name);
		$this->title = MODULE_PAYMENT_AUTHORIZENET_TEXT_TITLE;
		$this->text_title = MODULE_PAYMENT_AUTHORIZENET_TEXT_TEXT_TITLE;
		$this->description = MODULE_PAYMENT_AUTHORIZENET_TEXT_DESCRIPTION;
		$this->enabled = ((MODULE_PAYMENT_AUTHORIZENET_STATUS == 'True') ? true : false);
		$this->sort_order = MODULE_PAYMENT_AUTHORIZENET_SORT_ORDER;
		$this->barred=false;
		if ((int)MODULE_PAYMENT_AUTHORIZENET_ORDER_STATUS_ID > 0) {
			$this->order_status = MODULE_PAYMENT_AUTHORIZENET_ORDER_STATUS_ID;
		}
		
		if (is_object($order)) $this->update_status();
		
		/*if (MODULE_PAYMENT_AUTHORIZENET_TESTMODE=='Production'){
			$this->form_action_url = 'https://secure.authorize.net/gateway/transact.dll';
		} else {
			$this->form_action_url = 'https://test.authorize.net/gateway/transact.dll';
		}*/
		
		$this->form_action_url=tep_href_link(FILENAME_CHECKOUT_PROCESS, '', 'SSL');
	}

// Authorize.net utility functions
// DISCLAIMER:
//     This code is distributed in the hope that it will be useful, but without any warranty; 
//     without even the implied warranty of merchantability or fitness for a particular purpose.

// Main Interfaces:
//
// function InsertFP ($loginid, $txnkey, $amount, $sequence) - Insert HTML form elements required for SIM
// function CalculateFP ($loginid, $txnkey, $amount, $sequence, $tstamp) - Returns Fingerprint.

// compute HMAC-MD5
// Uses PHP mhash extension. Pl sure to enable the extension
// function hmac ($key, $data) {
//   return (bin2hex (mhash(MHASH_MD5, $data, $key)));
//}

// Thanks is lance from http://www.php.net/manual/en/function.mhash.php
//lance_rushing at hot* spamfree *mail dot com
//27-Nov-2002 09:36 
// 
//Want to Create a md5 HMAC, but don't have hmash installed?
//
//Use this:

function hmac ($key, $data)
{
   // RFC 2104 HMAC implementation for php.
   // Creates an md5 HMAC.
   // Eliminates the need to install mhash to compute a HMAC
   // Hacked by Lance Rushing

   $b = 64; // byte length for md5
   if (strlen($key) > $b) {
       $key = pack("H*",md5($key));
   }
   $key  = str_pad($key, $b, chr(0x00));
   $ipad = str_pad('', $b, chr(0x36));
   $opad = str_pad('', $b, chr(0x5c));
   $k_ipad = $key ^ $ipad ;
   $k_opad = $key ^ $opad;

   return md5($k_opad  . pack("H*",md5($k_ipad . $data)));
}
// end code from lance (resume authorize.net code)

// Calculate and return fingerprint
// Use when you need control on the HTML output
function CalculateFP ($loginid, $txnkey, $amount, $sequence, $tstamp, $currency = "") {
  return ($this->hmac ($txnkey, $loginid . "^" . $sequence . "^" . $tstamp . "^" . $amount . "^" . $currency));
}

// Inserts the hidden variables in the HTML FORM required for SIM
// Invokes hmac function to calculate fingerprint.

function InsertFP ($loginid, $txnkey, $amount, $sequence, $currency = "") {
  $tstamp = time ();
  $fingerprint = $this->hmac ($txnkey, $loginid . "^" . $sequence . "^" . $tstamp . "^" . $amount . "^" . $currency);

  $str = tep_draw_hidden_field('x_fp_sequence', $sequence) .
         tep_draw_hidden_field('x_fp_timestamp', $tstamp) .
         tep_draw_hidden_field('x_fp_hash', $fingerprint);

  return $str;
}
// end authorize.net code

// class methods
    function update_status() {
      global $order;
	  
	  tep_check_module_status($this,MODULE_PAYMENT_AUTHORIZENET_ZONE,trim(MODULE_PAYMENT_AUTHORIZENET_EXCEPT_ZONE),trim(MODULE_PAYMENT_AUTHORIZENET_EXCEPT_COUNTRY));
	  //$this->barred=tep_check_payment_barred(trim(MODULE_PAYMENT_AUTHORIZENET_EXCEPT_COUNTRY));
    }

    function javascript_validation() {
      $js = '  if (payment_value == "' . $this->code . '") {' . "\n" .
            '    var cc_owner = document.checkout_payment.authorizenet_cc_owner.value;' . "\n" .
            '    var cc_number = document.checkout_payment.authorizenet_cc_number.value;' . "\n" .
            '    if (cc_owner == "" || cc_owner.length < ' . CC_OWNER_MIN_LENGTH . ') {' . "\n" .
            '      error_message = error_message + "' . MODULE_PAYMENT_AUTHORIZENET_TEXT_JS_CC_OWNER . '";' . "\n" .
            '      error = 1;' . "\n" .
            '    }' . "\n" .
            '    if (cc_number == "" || cc_number.length < ' . CC_NUMBER_MIN_LENGTH . ') {' . "\n" .
            '      error_message = error_message + "' . MODULE_PAYMENT_AUTHORIZENET_TEXT_JS_CC_NUMBER . '";' . "\n" .
            '      error = 1;' . "\n" .
            '    }' . "\n" .
            '  }' . "\n";

      return $js;
    }

    function selection() {
      global $order;

      for ($i=1; $i<13; $i++) {
        $expires_month[] = array('id' => sprintf('%02d', $i), 'text' => strftime('%B',mktime(0,0,0,$i,1,2000)));
      }

      $today = getdate(); 
      for ($i=$today['year']; $i < $today['year']+10; $i++) {
        $expires_year[] = array('id' => strftime('%y',mktime(0,0,0,1,1,$i)), 'text' => strftime('%Y',mktime(0,0,0,1,1,$i)));
      }
      $selection = array('id' => $this->code,
                         'module' => $this->title,
						 'barred'=>$this->barred,
                         'fields' => array(array('title' => MODULE_PAYMENT_AUTHORIZENET_TEXT_CREDIT_CARD_OWNER,
                                                 'field' => tep_draw_input_field('authorizenet_cc_owner', $order->billing['firstname'] . ' ' . $order->billing['lastname'])),
                                           array('title' => MODULE_PAYMENT_AUTHORIZENET_TEXT_CREDIT_CARD_NUMBER,
                                                 'field' => tep_draw_input_field('authorizenet_cc_number')),
                                           array('title' => MODULE_PAYMENT_AUTHORIZENET_TEXT_CREDIT_CARD_EXPIRES,
                                                 'field' => tep_draw_pull_down_menu('authorizenet_cc_expires_month', $expires_month) . '&nbsp;' . tep_draw_pull_down_menu('authorizenet_cc_expires_year', $expires_year))));

      return $selection;
    }

    function pre_confirmation_check() {
      global $HTTP_POST_VARS;

      include(DIR_WS_CLASSES . 'cc_validation.php');

      $cc_validation = new cc_validation();
      $result = $cc_validation->validate($HTTP_POST_VARS['authorizenet_cc_number'], $HTTP_POST_VARS['authorizenet_cc_expires_month'], $HTTP_POST_VARS['authorizenet_cc_expires_year']);
      $error = '';
      switch ($result) {
        case -1:
          $error = sprintf(TEXT_CCVAL_ERROR_UNKNOWN_CARD, substr($cc_validation->cc_number, 0, 4));
          break;
        case -2:
        case -3:
        case -4:
          $error = TEXT_CCVAL_ERROR_INVALID_DATE;
          break;
        case false:
          $error = TEXT_CCVAL_ERROR_INVALID_NUMBER;
          break;
      }

      if ( ($result == false) || ($result < 1) ) {
        $payment_error_return = 'payment_error=' . $this->code . '&error=' . urlencode($error) . '&authorizenet_cc_owner=' . urlencode($HTTP_POST_VARS['authorizenet_cc_owner']) . '&authorizenet_cc_expires_month=' . $HTTP_POST_VARS['authorizenet_cc_expires_month'] . '&authorizenet_cc_expires_year=' . $HTTP_POST_VARS['authorizenet_cc_expires_year'];

        tep_redirect(tep_href_link(FILENAME_CHECKOUT_PAYMENT, $payment_error_return, 'SSL', true, false));
      }

      $this->cc_card_type = $cc_validation->cc_type;
      $this->cc_card_number = $cc_validation->cc_number;
      $this->cc_expiry_month = $cc_validation->cc_expiry_month;
      $this->cc_expiry_year = $cc_validation->cc_expiry_year;
    }

    function confirmation() {
      global $HTTP_POST_VARS;

      $confirmation = array('title' => $this->title . ': ' . $this->cc_card_type,
                            'fields' => array(array('title' => MODULE_PAYMENT_AUTHORIZENET_TEXT_CREDIT_CARD_OWNER,
                                                    'field' => $HTTP_POST_VARS['authorizenet_cc_owner']),
                                              array('title' => MODULE_PAYMENT_AUTHORIZENET_TEXT_CREDIT_CARD_NUMBER,
                                                    'field' => substr($this->cc_card_number, 0, 4) . str_repeat('X', (strlen($this->cc_card_number) - 8)) . substr($this->cc_card_number, -4)),
                                              array('title' => MODULE_PAYMENT_AUTHORIZENET_TEXT_CREDIT_CARD_EXPIRES,
                                                    'field' => strftime('%B, %Y', mktime(0,0,0,$HTTP_POST_VARS['authorizenet_cc_expires_month'], 1, '20' . $HTTP_POST_VARS['authorizenet_cc_expires_year'])))));

      return $confirmation;
    }

    function process_button() {
      global $HTTP_SERVER_VARS, $order, $customer_id;

      $sequence = rand(1, 1000);
      $process_button_string = tep_draw_hidden_field('x_Login', MODULE_PAYMENT_AUTHORIZENET_LOGIN) .
							   tep_draw_hidden_field("x_delim_char","|") .
								tep_draw_hidden_field("x_delim_data","TRUE") .
								tep_draw_hidden_field("x_url","FALSE") .
								tep_draw_hidden_field("x_type","AUTH_CAPTURE") .
								tep_draw_hidden_field("x_password",MODULE_PAYMENT_AUTHORIZENET_TXNKEY) .
								tep_draw_hidden_field("x_relay_response","FALSE") .
                               tep_draw_hidden_field('x_Method', ((MODULE_PAYMENT_AUTHORIZENET_METHOD == 'Credit Card') ? 'CC' : 'ECHECK')) .
                               tep_draw_hidden_field('x_Version', '3.1') .
                               tep_draw_hidden_field('x_Card_Num', $this->cc_card_number) .
                               tep_draw_hidden_field('x_Exp_Date', $this->cc_expiry_month . substr($this->cc_expiry_year, -2)) .
                               tep_draw_hidden_field('x_Amount', number_format($order->info['total'], 2,'.','')) .
                               tep_draw_hidden_field('x_Cust_ID', $customer_id) .
                               tep_draw_hidden_field('x_Email_Customer', ((MODULE_PAYMENT_AUTHORIZENET_EMAIL_CUSTOMER == 'True') ? 'TRUE': 'FALSE')) .
                               tep_draw_hidden_field('x_first_name', $order->billing['firstname']) .
                               tep_draw_hidden_field('x_last_name', $order->billing['lastname']) .
                               tep_draw_hidden_field('x_address', $order->billing['street_address']) .
                               tep_draw_hidden_field('x_city', $order->billing['city']) .
                               tep_draw_hidden_field('x_state', $order->billing['state']) .
                               tep_draw_hidden_field('x_zip', $order->billing['postcode']) .
                               tep_draw_hidden_field('x_country', $order->billing['country']['title']) .
                               tep_draw_hidden_field('x_phone', $order->customer['telephone']) .
                               tep_draw_hidden_field('x_email', $order->customer['email_address']) .
                               tep_draw_hidden_field('x_ship_to_first_name', $order->delivery['firstname']) .
                               tep_draw_hidden_field('x_ship_to_last_name', $order->delivery['lastname']) .
                               tep_draw_hidden_field('x_ship_to_address', $order->delivery['street_address']) .
                               tep_draw_hidden_field('x_ship_to_city', $order->delivery['city']) .
                               tep_draw_hidden_field('x_ship_to_state', $order->delivery['state']) .
                               tep_draw_hidden_field('x_ship_to_zip', $order->delivery['postcode']) .
                               tep_draw_hidden_field('x_ship_to_country', $order->delivery['country']['title']) .
                               tep_draw_hidden_field('x_Customer_IP', $HTTP_SERVER_VARS['REMOTE_ADDR']) .
                               $this->InsertFP(MODULE_PAYMENT_AUTHORIZENET_LOGIN, MODULE_PAYMENT_AUTHORIZENET_TXNKEY, number_format($order->info['total'], 2,'.',''), $sequence);
      $process_button_string .= tep_draw_hidden_field(tep_session_name(), tep_session_id());
      if (MODULE_PAYMENT_AUTHORIZENET_TESTMODE == 'Test') $process_button_string .= tep_draw_hidden_field('x_Test_Request', 'TRUE');

      return $process_button_string;
    }

    function before_process() {
		global $order;

		unset($_POST['x']);
		unset($_POST['y']);

		
		if (MODULE_PAYMENT_AUTHORIZENET_TESTMODE=='Production'){
			$atURL='https://secure.authorize.net/gateway/transact.dll';
			$host="secure.authorize.net";
		} else {
			//$atURL='https://test.authorize.net/gateway/transact.dll';
			
			//$host="test.authorize.net";
			$atURL='https://certification.authorize.net/gateway/transact.dll';
			$host="certification.authorize.net";
		}
		$exPath="/gateway/transact.dll";
		// Create the Request String
		$postRequestData = '';
		$amp = '';
		foreach($_POST as $key => $value) {
			if(!empty($value) && $key !== tep_session_name()) { // Eliminate the empty variables
				$postRequestData .= $amp . urlencode($key) . '=' . urlencode($value);
				$amp = '&';						
			}
		}
		$resp="";
		if(function_exists("curl_init")){
		
			$ch = curl_init($atURL); 
			curl_setopt( $ch, CURLOPT_SSL_VERIFYPEER, 0 );
			curl_setopt($ch, CURLOPT_HEADER, 0); // set to 0 to eliminate header info from response
			curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); // Returns response data instead of TRUE(1)
			curl_setopt ($ch, CURLOPT_POST, 1);
			curl_setopt($ch, CURLOPT_POSTFIELDS, $postRequestData); // use HTTP POST to send form data
			$resp = curl_exec($ch); //execute post and get results
			curl_close ($ch);
		} else {
			$fp = @fsockopen ("ssl://$host", 443, $errno, $errstr, 50);
			fputs($fp, "POST $exPath HTTP/1.1\r\n");
			fputs($fp, "Host: $host\r\n");
			fputs($fp, "Content-type: application/x-www-form-urlencoded\r\n");
			fputs($fp, "Content-length: " . strlen($postRequestData) . "\r\n");
	
			fputs($fp, "Connection: close\r\n\r\n");
			fputs($fp, $postRequestData);
	
			while (!feof($fp)) {
				$resp .= @fgets($fp,128);
			}
			fclose($fp);
		}
		$pos=strpos($resp,"|");
		if ($pos!==false){		
			$start_pos=0;
			for ($icnt=$pos;$icnt>=0;$icnt--){
				if (substr($resp,$icnt,1)=="\n") break;
				$start_pos=$icnt;
			}
			$resp=substr($resp,$start_pos);
		}
		$resp_splt=array();
		if ($resp=='') {
			$error=true;
			$error_text="Empty Data Returned from Gateway Server";
		} else {
			$resp_splt=split("\|",$resp);
			if (count($resp_splt)<=4){
				$error=true;
				$error_text="Invalid Data Returned from Gateway Server";
			} else {
				if (trim($resp_splt[0])!="1") {  //approved
					$error=true;
					$error_text=$resp_splt[3];
				}
			}
		}
		if ($error){
			tep_redirect(tep_href_link(FILENAME_CHECKOUT_PAYMENT, 'payment_error=' . $this->code . '&error=' . urlencode($error_text), 'SSL', true, false));
			exit;
		}
		$GLOBALS["payment_return1"]=$resp_splt[6];
		$GLOBALS["payment_return2"]=$resp_splt[4];
    }

    function after_process() {
      return false;
    }

    function get_error() {
      global $HTTP_GET_VARS;

      $error = array('title' => MODULE_PAYMENT_AUTHORIZENET_TEXT_ERROR,
                     'error' => stripslashes(urldecode($HTTP_GET_VARS['error'])));

      return $error;
    }

    function check() {
      if (!isset($this->_check)) {
        $check_query = tep_db_query("select configuration_value from " . TABLE_CONFIGURATION . " where configuration_key = 'MODULE_PAYMENT_AUTHORIZENET_STATUS'");
        $this->_check = tep_db_num_rows($check_query);
      }
      return $this->_check;
    }

    function install() {
      tep_db_query("insert into " . TABLE_CONFIGURATION . " (configuration_title, configuration_key, configuration_value, configuration_description, configuration_group_id, sort_order, set_function, date_added) values ('Enable Authorize.net Module', 'MODULE_PAYMENT_AUTHORIZENET_STATUS', 'True', 'Do you want to accept Authorize.net payments?', '6', '1', 'tep_cfg_select_option(array(\'True\', \'False\'), ', now())");
      tep_db_query("insert into " . TABLE_CONFIGURATION . " (configuration_title, configuration_key, configuration_value, configuration_description, configuration_group_id, sort_order, date_added) values ('Authorizenet Login Username', 'MODULE_PAYMENT_AUTHORIZENET_LOGIN', 'testing', 'The login username used for the Authorize.net service', '6', '2', now())");
      tep_db_query("insert into " . TABLE_CONFIGURATION . " (configuration_title, configuration_key, configuration_value, configuration_description, configuration_group_id, sort_order, date_added) values ('Authorizenet Transaction Key', 'MODULE_PAYMENT_AUTHORIZENET_TXNKEY', 'Test', 'Transaction Key used for encrypting TP data', '6', '3', now())");
      tep_db_query("insert into " . TABLE_CONFIGURATION . " (configuration_title, configuration_key, configuration_value, configuration_description, configuration_group_id, sort_order, set_function, date_added) values ('Authorizenet Transaction Mode', 'MODULE_PAYMENT_AUTHORIZENET_TESTMODE', 'Test', 'Transaction mode used for processing orders', '6', '4', 'tep_cfg_select_option(array(\'Test\', \'Production\'), ', now())");
      tep_db_query("insert into " . TABLE_CONFIGURATION . " (configuration_title, configuration_key, configuration_value, configuration_description, configuration_group_id, sort_order, set_function, date_added) values ('Authorizenet Transaction Method', 'MODULE_PAYMENT_AUTHORIZENET_METHOD', 'Credit Card', 'Transaction method used for processing orders', '6', '5', 'tep_cfg_select_option(array(\'Credit Card\', \'eCheck\'), ', now())");
      tep_db_query("insert into " . TABLE_CONFIGURATION . " (configuration_title, configuration_key, configuration_value, configuration_description, configuration_group_id, sort_order, set_function, date_added) values ('Authorizenet Customer Notifications', 'MODULE_PAYMENT_AUTHORIZENET_EMAIL_CUSTOMER', 'False', 'Should Authorize.Net e-mail a receipt to the customer?', '6', '6', 'tep_cfg_select_option(array(\'True\', \'False\'), ', now())");
      tep_db_query("insert into " . TABLE_CONFIGURATION . " (configuration_title, configuration_key, configuration_value, configuration_description, configuration_group_id, sort_order, date_added) values ('Authorizenet - Sort order of display.', 'MODULE_PAYMENT_AUTHORIZENET_SORT_ORDER', '2', 'Authorizenet - Sort order of  display. Lowest is displayed first.', '6', '7', now())");
      tep_db_query("insert into " . TABLE_CONFIGURATION . " (configuration_title, configuration_key, configuration_value, configuration_description, configuration_group_id, sort_order, use_function, set_function, date_added) values ('Authorizenet - Payment Zone', 'MODULE_PAYMENT_AUTHORIZENET_ZONE', '3', 'Authorizenet - If a zone is selected, only enable this payment method for that zone.', '6', '8', 'tep_get_zone_class_title', 'tep_cfg_pull_down_zone_classes(', now())");
      tep_db_query("insert into " . TABLE_CONFIGURATION . " (configuration_title, configuration_key, configuration_value, configuration_description, configuration_group_id, sort_order, set_function, use_function, date_added) values ('Authorizenet - Exclude these Countries', 'MODULE_PAYMENT_AUTHORIZENET_EXCEPT_COUNTRY', '', 'Authorizenet - If countries are selected, disable this payment method for that countries.', '6', '9', 'tep_cfg_pull_down_zone_except_countries(MODULE_PAYMENT_AUTHORIZENET_ZONE,', 'tep_get_zone_except_country', now())");
      tep_db_query("insert into " . TABLE_CONFIGURATION . " (configuration_title, configuration_key, configuration_value, configuration_description, configuration_group_id, sort_order, set_function, use_function, date_added) values ('Authorizenet - Exclude these Zones', 'MODULE_PAYMENT_AUTHORIZENET_EXCEPT_ZONE', '2', 'Authorizenet - If a zone is selected, disable this payment method for that zone.', '6', '10', 'tep_cfg_pull_down_zone_classes(','tep_get_zone_class_title', now())");
      tep_db_query("insert into " . TABLE_CONFIGURATION . " (configuration_title, configuration_key, configuration_value, configuration_description, configuration_group_id, sort_order, set_function, use_function, date_added) values ('Authorizenet - Set Order Status', 'MODULE_PAYMENT_AUTHORIZENET_ORDER_STATUS_ID', '2', 'Authorizenet - Set the status of orders made with this payment module to this value', '6', '11', 'tep_cfg_pull_down_order_statuses(', 'tep_get_order_status_name', now())");
	  tep_db_query("insert into " . TABLE_CONFIGURATION . " (configuration_title, configuration_key, configuration_value, configuration_description, configuration_group_id, sort_order, date_added) values ('Display Name', 'MODULE_PAYMENT_AUTHORIZENET_DISPLAY_NAME', 'Authorize.net', 'Set the Display name to payment module', '6', '12', now())");
      tep_db_query("insert into " . TABLE_CONFIGURATION . " (configuration_title, configuration_key, configuration_value, configuration_description, configuration_group_id, sort_order, set_function, date_added) values ('Image', 'MODULE_PAYMENT_AUTHORIZENET_IMAGE', 'authorizenet', 'Set the Image of payment module', '6', '13', 'tep_cfg_file_field(', now())");
    }

    function remove() {
      tep_db_query("delete from " . TABLE_CONFIGURATION . " where configuration_key in ('" . implode("', '", $this->keys()) . "')");
    }

    function keys() {
      return array('MODULE_PAYMENT_AUTHORIZENET_STATUS', 'MODULE_PAYMENT_AUTHORIZENET_LOGIN', 'MODULE_PAYMENT_AUTHORIZENET_TXNKEY', 'MODULE_PAYMENT_AUTHORIZENET_TESTMODE', 'MODULE_PAYMENT_AUTHORIZENET_METHOD', 'MODULE_PAYMENT_AUTHORIZENET_EMAIL_CUSTOMER', 'MODULE_PAYMENT_AUTHORIZENET_ZONE', 'MODULE_PAYMENT_AUTHORIZENET_EXCEPT_ZONE', 'MODULE_PAYMENT_AUTHORIZENET_EXCEPT_COUNTRY', 'MODULE_PAYMENT_AUTHORIZENET_ORDER_STATUS_ID', 'MODULE_PAYMENT_AUTHORIZENET_SORT_ORDER','MODULE_PAYMENT_AUTHORIZENET_DISPLAY_NAME','MODULE_PAYMENT_AUTHORIZENET_IMAGE');
    }
  }
?>
