citrus_pay.php

<?php
/*
 * This is custom gateway for "Citrus Payement Sloution"
 * @created: 5 MARCH 2013
 * @author: Omprakash
 */

$nzshpcrt_gateways[$num]['name'] = 'Citrus Pay Gateway';
$nzshpcrt_gateways[$num]['internalname'] = 'citrus_pay_gateway';
$nzshpcrt_gateways[$num]['function'] = 'gateway_citrus_pay_gateway';
$nzshpcrt_gateways[$num]['form'] = "form_citrus_pay_gateway";
$nzshpcrt_gateways[$num]['submit_function'] = "submit_citrus_pay_gateway";

/*
 * Including Citrus gateway Liberies
 */
set_include_path(ABSPATH . '/lib'. PATH_SEPARATOR.get_include_path());
require_once( ABSPATH . '/lib/CitrusPay.php');
require_once 'Zend/Crypt/Hmac.php';

/*
 * @description: function of gateway for computing hash
 */
function generateHmacKey($data, $apiKey=null){
	$hmackey = Zend_Crypt_Hmac::compute($apiKey, "sha1", $data);
	return $hmackey;
}

CitrusPay::setApiKey(get_option( "citrus_pay_gateway_secret_key" ),'production');

function gateway_citrus_pay_gateway($seperator, $sessionid){
  //$wpdb is the database handle,
  //$wpsc_cart is the shopping cart object
  global $wpdb, $wpsc_cart;

  //This grabs the purchase log id from the database
  //that refers to the $sessionid
  $response_url = 'http://localhost/ecommerce/response/';
  $vanityUrl = get_option( "citrus_pay_gateway_vanity_url" );
  $currency = "INR";
  $merchantTxnId = $sessionid;
  $orderAmount = $wpsc_cart->total_price;
  $data = "$vanityUrl$orderAmount$merchantTxnId$currency";
  $secSignature = generateHmacKey($data,CitrusPay::getApiKey());
  $action = CitrusPay::getCPBase()."$vanityUrl";  
  $time = time()*1000;
  $time = number_format($time,0,'.','');
  
  $purchase_log = $wpdb->get_row(
  "SELECT * FROM `".WPSC_TABLE_PURCHASE_LOGS.
  "` WHERE `sessionid`= ".$sessionid." LIMIT 1"
  ,ARRAY_A) ;  
  
  //This grabs the users info using the $purchase_log
  // from the previous SQL query
  
  $usersql = "SELECT `".WPSC_TABLE_SUBMITED_FORM_DATA."`.value,
  `".WPSC_TABLE_CHECKOUT_FORMS."`.`name`,
  `".WPSC_TABLE_CHECKOUT_FORMS."`.`unique_name` FROM
  `".WPSC_TABLE_CHECKOUT_FORMS."` LEFT JOIN
  `".WPSC_TABLE_SUBMITED_FORM_DATA."` ON
  `".WPSC_TABLE_CHECKOUT_FORMS."`.id =
  `".WPSC_TABLE_SUBMITED_FORM_DATA."`.`form_id` WHERE
  `".WPSC_TABLE_SUBMITED_FORM_DATA."`.`log_id`=".$purchase_log['id']."
  ";
  $userinfo = $wpdb->get_results($usersql, ARRAY_A); 
 
  //Now we will store all the information into an associative array
  //called $data to prepare it for sending via cURL

  //please note that the key in the array may need to be changed
  //to work with your gateway (refer to your gateways documentation).
  $data = array();
  //USer information will goe here...
  $userinfo = $wpdb->get_results($usersql, ARRAY_A);

  foreach((array)$userinfo as $key => $value){
    if(($value['unique_name'] == 'billingfirstname') && $value['value'] != ''){
      $data['BILLFIRSTNAME'] = $value['value'];
    }

    if(($value['unique_name'] == 'billinglastname') && $value['value'] != ''){
      $data['BILLLASTNAME'] = $value['value'];
    }

    if(($value['unique_name'] == 'billingaddress') && $value['value'] != ''){
      $data['BILLADDRESS'] = $value['value'];
    }
    
    if (($value['unique_name'] == 'billingcity') && $value['value'] != '') {
      $data['BILLCITY'] = $value['value'];
    }
    
    if (($value['unique_name'] == 'billingstate') && $value['value'] != '') {
      $data['BILLSTATE'] = $value['value'];
    }
    
    if (($value['unique_name'] == 'billingcountry') && $value['value'] != '') {
      $data['BILLCOUNTRY'] = $value['value'];
    }  
    
    if(($value['unique_name'] == 'billingemail') && $value['value'] != ''){
      $data['BILLEMAIL'] =  $value['value'];
    }

    if(($value['unique_name'] == 'billingphone') && $value['value'] != ''){
      $data['BILLPHONE'] = $value['value'];
    }
    
    if(($value['unique_name'] == 'billingpostcode') && $value['value'] != ''){
      $data['BILLPIN'] = $value['value'];
    }
  }
  //Transaction form starts here ...
  $transactionform  = '<form action="'. $action .'" method="POST" name="TransactionForm" id="transactionForm">';
  $transactionform .= '<p>
			<label> Transaction ID:</label><input name="merchantTxnId"
				type="text" value="'. $merchantTxnId .'" />
                      </p>
                      <p>
                        <label> addressState:</label><input name="addressState" type="text"
                                value="'. $data['BILLSTATE'] .'" />
                      </p>
                      <p>
                        <label> addressCity:</label><input name="addressCity" type="text"
                                value="'. $data['BILLCITY'] .'" />
                      </p>
                      <p>
                        <label> addressStreet1:</label><input name="addressStreet1"
                                type="text" value="'. $data['BILLADDRESS'] .'" />
                      </p>
                      <p>
                        <label> addressCountry:</label><input name="addressCountry"
                                type="text" value="'. $data['BILLCOUNTRY'] .'" />
                      </p>
                      <p>
                        <label> addressZip:</label><input name="addressZip" type="text"
                                value="'. $data['BILLPIN'] .'" />
                      </p>
                      <p>
                        <label> firstName:</label><input name="firstName" type="text"
                                value="'. $data['BILLFIRSTNAME'] .'" />
                      </p>
                      <p>
                        <label> lastName:</label><input name="lastName" type="text"
                                value="'. $data['BILLLASTNAME'] .'" />
                      </p>
                      <p>
                        <label> Mobile Number:</label><input name="phoneNumber" type="text"
                                value="'. $data['BILLPHONE'] .'" />
                      </p>
                      <p>
                        <label> email:</label><input name="email" type="text"
                                value="'. $data['BILLEMAIL'] .'" />
                      </p>
                      <p>
                        <label> user session:</label><input name="sessionid" type="hidden" value="'. $sessionid .'" />
                      </p>
                      <p>
                        <label> paymentMode:</label><input name="paymentMode" type="text"
                                value="NET_BANKING" />
                      </p>
                      <p>
                        <label> issuerCode:</label><input name="issuerCode" type="text"
                                value="" />
                      </p>
                      <p>
                        <label> cardHolderName:</label><input name="cardHolderName"
                                type="text" value="" />
                      </p>
                      <p>
                        <label> cardNumber:</label><input name="cardNumber" type="text"
                                value="" />
                      </p>
                      <p>
                        <label> expiryMonth:</label><input name="expiryMonth" type="text"
                                value="" />
                      </p>
                      <p>
                        <label> cardType:</label><input name="cardType" type="text"
                                value="" />
                      </p>
                      <p>
                        <label> cvvNumber:</label><input name="cvvNumber" type="text"
                                value="" />
                      </p>
                      <p>
                        <label> expiryYear:</label><input name="expiryYear" type="text"
                                value="" />
                      </p>
                      <p>
                        <label> returnUrl:</label><input name="returnUrl" type="text"
                                value="'. $response_url .'" />
                      </p>
                      <p>
                        <label> amount:</label><input name="orderAmount" type="text"
                                value="'. $orderAmount . '" />
                      </p>
                      <p>
                        Time: <input type="text" name="reqtime" value="' . $time . '" /> <input
                                type="hidden" name="secSignature"
                                value="' . $secSignature. ' " /> <input type="hidden"
                                name="currency" value="' . $currency . '" />
                      </p>';
  $transactionform .= '</form>';
  echo $transactionform;
  echo '<script type="text/javascript">
          document.getElementById("transactionForm").submit();
	</script>';
 
  //Transaction form Ends here ...
  exit();
  $transact_url = get_option('transact_url');
  $response = 'Successs';
  if($response == 'Success' || $response == 'SuccessWithWarning'){

  //redirect to  transaction page and store in DB as a order with
  //accepted payment

  $sql = "UPDATE `".WPSC_TABLE_PURCHASE_LOGS.
  "` SET `processed`= '2' WHERE `sessionid`=".$sessionid;

  $wpdb->query($sql);

  $transact_url = get_option('transact_url');

  unset($_SESSION['WpscGatewayErrorMessage']);

  header("Location: ".$transact_url.$seperator."sessionid=".$sessionid);
  exit();
  }else{

  //redirect back to checkout page with errors

  $sql = "UPDATE `".WPSC_TABLE_PURCHASE_LOGS.
  "` SET `processed`= '5' WHERE `sessionid`=".$sessionid;

  $wpdb->query($sql);

  $transact_url = get_option('checkout_url');

  $_SESSION['WpscGatewayErrorMessage'] =
   __('Sorry your transaction did not go through successfully, please try again.');

  header("Location: ".$transact_url);
  exit();
  }

  
}
/*
 * 
 */
function form_citrus_pay_gateway(){
  global $wpsc_gateways, $wpdb;

  $output = '<tr><td>';
  $output.='<input name="citrus_pay_access_key" type="text" value="' . get_option( "citrus_pay_access_key" ) . '" />';
  $output.='Citrus Pay Access Key';

  $output.='<input name="citrus_pay_gateway_secret_key" type="text" value="' . get_option( "citrus_pay_gateway_secret_key" ) . '" />';
  $output.='Citrus Pay Secret Key';
  
  $output.='<input name="citrus_pay_gateway_vanity_url" type="text" value="' . get_option( "citrus_pay_gateway_vanity_url" ) . '" />';
  $output.='Citrus Pay Vanity url';
  $output .= '</tr></td>';
  return $output;  
}
/*
 * Custom Form appending At Checkout page..
 */
if ( in_array( 'citrus_pay_gateway', (array)get_option( 'custom_gateway_options' ) ) ) {
  $output = '<tr><td>
             <label for="paymentmode">Payment mode</label>
             <select class="text" name="paymentMode" id="paymentmode">
              <option value="">Select Payment Mode</option>
              <option value="NET_BANKING">NetBanking</option>
              <option value="CREDIT_CARD">Credit Card</option>
              <option value="DEBIT_CARD">Debit Card</option>
	     </select>
             </td></tr>';
  $gateway_checkout_form_fields[$nzshpcrt_gateways[$num]['internalname']] = $output;
}
function submit_citrus_pay_gateway(){
  if($_POST['citrus_pay_access_key'] != null) {
    update_option('citrus_pay_access_key',
    $_POST['citrus_pay_access_key']);
  }

  if($_POST['citrus_pay_gateway_secret_key'] != null) {
    update_option('citrus_pay_gateway_secret_key',
    $_POST['citrus_pay_gateway_secret_key']);
  }
  
  if($_POST['citrus_pay_gateway_vanity_url'] != null) {
    update_option('citrus_pay_gateway_vanity_url',
    $_POST['citrus_pay_gateway_vanity_url']);
  }  
  return true;
}

Hi This is my main gateway file where my code working fine for storing and displaying configuration options for my new custom gateway. Here i am also able to post values using new custom gateway, but here i want response of the gateway on another page having template Responce.php. On this template for storing transaction of each user i want $session id but i am unable to get that.