/**
   * Store the CC info to the order and process any results that come back from the payment gateway
   *
   */
  function before_process() {
    global $response, $db, $order, $messageStack;
    $order->info['cc_type']    = $_POST['cc_type'];
    $order->info['cc_owner']   = $_POST['cc_owner'];
    $order->info['cc_number']  = str_pad(substr($_POST['cc_number'], -4), strlen($_POST['cc_number']), "X", STR_PAD_LEFT);
    $order->info['cc_expires'] = '';  // $_POST['cc_expires'];
    $order->info['cc_cvv']     = '***';
    $sessID = zen_session_id();

    // DATA PREPARATION SECTION
    unset($submit_data);  // Cleans out any previous data stored in the variable

    // Create a string that contains a listing of products ordered for the description field
    $description = '';
    for ($i=0; $i<sizeof($order->products); $i++) {
      $description .= $order->products[$i]['name'] . ' (qty: ' . $order->products[$i]['qty'] . ') + ';
    }
    // Remove the last "\n" from the string
    $description = substr($description, 0, -2);

    // Create a variable that holds the order time
    $order_time = date("F j, Y, g:i a");

    // Calculate the next expected order id (adapted from code written by Eric Stamper - 01/30/2004 Released under GPL)
    $last_order_id = $db->Execute("select * from " . TABLE_ORDERS . " order by orders_id desc limit 1");
    $new_order_id = $last_order_id->fields['orders_id'];
    $new_order_id = ($new_order_id + 1);

    // add randomized suffix to order id to produce uniqueness ... since it's unwise to submit the same order-number twice to authorize.net
    $new_order_id = (string)$new_order_id . '-' . zen_create_random_value(6, 'chars');


    // Populate an array that contains all of the data to be sent to Authorize.net
    $submit_data = array(
                         'x_login' => trim(MODULE_PAYMENT_AUTHORIZENET_AIM_LOGIN),
                         'x_tran_key' => trim(MODULE_PAYMENT_AUTHORIZENET_AIM_TXNKEY),
                         'x_relay_response' => 'FALSE', // AIM uses direct response, not relay response
                         'x_delim_data' => 'TRUE',
                         'x_delim_char' => $this->delimiter,  // The default delimiter is a comma
                         'x_encap_char' => $this->encapChar,  // The divider to encapsulate response fields
                         'x_version' => '3.1',  // 3.1 is required to use CVV codes
                         'x_type' => MODULE_PAYMENT_AUTHORIZENET_AIM_AUTHORIZATION_TYPE == 'Authorize' ? 'AUTH_ONLY': 'AUTH_CAPTURE',
                         'x_method' => 'CC',
                         'x_amount' => number_format($order->info['total'], 2),
                         'x_currency_code' => $order->info['currency'],
                         'x_card_num' => $_POST['cc_number'],
                         'x_exp_date' => $_POST['cc_expires'],
                         'x_card_code' => $_POST['cc_cvv'],
                         'x_email_customer' => MODULE_PAYMENT_AUTHORIZENET_AIM_EMAIL_CUSTOMER == 'True' ? 'TRUE': 'FALSE',
                         'x_email_merchant' => MODULE_PAYMENT_AUTHORIZENET_AIM_EMAIL_MERCHANT == 'True' ? 'TRUE': 'FALSE',
                         'x_cust_id' => $_SESSION['customer_id'],
                         'x_invoice_num' => (MODULE_PAYMENT_AUTHORIZENET_AIM_TESTMODE == 'Test' ? 'TEST-' : '') . $new_order_id,
                         'x_first_name' => $order->billing['firstname'],
                         'x_last_name' => $order->billing['lastname'],
                         'x_company' => $order->billing['company'],
                         'x_address' => $order->billing['street_address'],
                         'x_city' => $order->billing['city'],
                         'x_state' => $order->billing['state'],
                         'x_zip' => $order->billing['postcode'],
                         'x_country' => $order->billing['country']['title'],
                         'x_phone' => $order->customer['telephone'],
                         'x_email' => $order->customer['email_address'],
                         'x_ship_to_first_name' => $order->delivery['firstname'],
                         'x_ship_to_last_name' => $order->delivery['lastname'],
                         'x_ship_to_address' => $order->delivery['street_address'],
                         'x_ship_to_city' => $order->delivery['city'],
                         'x_ship_to_state' => $order->delivery['state'],
                         'x_ship_to_zip' => $order->delivery['postcode'],
                         'x_ship_to_country' => $order->delivery['country']['title'],
                         'x_description' => $description,
                         'x_recurring_billing' => 'NO',
                         'x_customer_ip' => zen_get_ip_address(),
                         'x_po_num' => date('M-d-Y h:i:s'), //$order->info['po_number'],
                         'x_freight' => number_format((float)$order->info['shipping_cost'],2),
                         'x_tax_exempt' => 'FALSE', /* 'TRUE' or 'FALSE' */
                         'x_tax' => number_format((float)$order->info['tax'],2),
                         'x_duty' => '0',
                         'x_allow_partial_Auth' => 'FALSE', // unable to accept partial authorizations at this time

                         // Additional Merchant-defined variables go here
                         'Date' => $order_time,
                         'IP' => zen_get_ip_address(),
                         'Session' => $sessID );
    // force conversion to USD
    if ($order->info['currency'] != 'USD') {
      global $currencies;
      $submit_data['x_amount'] = number_format($order->info['total'] * $currencies->get_value('USD'), 2);
      $submit_data['x_currency_code'] = 'USD';
      unset($submit_data['x_tax'], $submit_data['x_freight']);
    }

    unset($response);
    $response = $this->_sendRequest($submit_data);
    $response_code = $response[0];
    $response_text = $response[3];
    $this->auth_code = $response[4];
    $this->transaction_id = $response[6];
    $this->avs_response= $response[5];
    $this->ccv_response= $response[38];
    $response_msg_to_customer = $response_text . ($this->commError == '' ? '' : ' Communications Error - Please notify webmaster.');

    $response['Expected-MD5-Hash'] = $this->calc_md5_response($response[6], $response[9]);
    $response['HashMatchStatus'] = ($response[37] == $response['Expected-MD5-Hash']) ? 'PASS' : 'FAIL';

    if ($response[0] == '3' && $response[2] == '103') $response['ErrorDetails'] = 'Invalid Transaction Key in AIM configuration.';
    if ($response[0] == '2' && $response[2] == '44') $response['ErrorDetails'] = 'Declined due to CVV refusal by issuing bank.';
    if ($response[0] == '2' && $response[2] == '45') $response['ErrorDetails'] = 'Declined due to AVS/CVV filters.';
    if ($response[0] == '2' && $response[2] == '65') $response['ErrorDetails'] = 'Declined due to custom CVV filters.';
    if ($response[0] == '3' && $response[2] == '66') $response['ErrorDetails'] = 'Transaction did not meet security guideline requirements.';
    if ($response[0] == '3' && $response[2] == '128') $response['ErrorDetails'] = 'Refused by customers bank.';
    if ($response[0] == '2' && $response[2] == '250') $response['ErrorDetails'] = 'Transaction submitted from a blocked IP address.';
    if ($response[0] == '2' && $response[2] == '251') $response['ErrorDetails'] = 'Declined by Fraud Detection Suite filter.';
    if ($response[0] == '4' && in_array($response[2], array('193', '252', '253'))) {
      $this->order_status = 1;
      $this->transaction_id .= ' ***NOTE: Held for review by merchant.';
      $response['ErrorDetails'] = 'Transaction held for review by merchant or fraud detection suite.';
    }

    $this->_debugActions($response, $order_time, $sessID);

    // If the MD5 hash doesn't match, then this transaction's authenticity cannot be verified.
    // Thus, order will be placed in Pending status
    if ($response['HashMatchStatus'] != 'PASS' && defined('MODULE_PAYMENT_AUTHORIZENET_AIM_MD5HASH') && MODULE_PAYMENT_AUTHORIZENET_AIM_MD5HASH != '') {
      $this->order_status = 1;
      $messageStack->add_session('header', MODULE_PAYMENT_AUTHORIZENET_AIM_TEXT_AUTHENTICITY_WARNING, 'caution');
    }

    // If the response code is not 1 (approved) then redirect back to the payment page with the appropriate error message
    if ($response_code != '1') {
      $messageStack->add_sessio