<?php
/**
* Qpay India Payment Gateway
*
* Provides a Qpay India Payment Gateway.
*
* @class WC_Gateway_Payu_In
* @package WooCommerce
* @category Payment Gateways
* @author Ajinkya More
*
*
* Table Of Contents
*
* __construct()
* init_form_fields()
* plugin_url()
* admin_options()
* payment_fields()
* generate_payu_in_form()
* process_payment()
* receipt_page()
* check_transaction_status()
* payment_success()
* payment_pending()
* payment_failure()
* qpay_in_transaction_verification()
* send_request()
* calculate_hash_before_transaction()
* check_hash_after_transaction()
* calculate_hash_before_verification()
* get_post_var()
* get_get_var()
* add_qpay_in_gateway()
*/
class WC_Gateway_Qpay_In extends WC_Payment_Gateway {
/**
* __construct function.
*
* @since 1.0.0
* @access public
* @return void
*/
public function __construct() {
global $woocommerce;
$this->id = 'qpay_in';
$this->method_title = __( 'Qpay', 'woocommerce_qpay_in' );
$this->icon = $this->plugin_url() . '/assets/images/icon.png';
$this->has_fields = true;
$this->liveurl = 'https://www.qpayindia.com/wwws/Payment/PaymentDetails.aspx';
$this->testurl = 'https://www.qpayindia.com/wwws/Payment/PaymentDetails.aspx';
// Load the form fields.
$this->init_form_fields();
// Load the settings.
$this->init_settings();
// Check if the currency is set to INR. If not we disable the plugin here.
if ( get_option( 'woocommerce_currency' ) == 'INR' ) {
$qpay_in_enabled = $this->settings['enabled'];
} else {
$qpay_in_enabled = 'no';
} // End check currency
$this->enabled = $qpay_in_enabled;
$this->title = $this->settings['title'];
$this->description = $this->settings['description'];
$this->response_url = $this->settings['response_url'];
$this->case_number = $this->settings['case_number'];
$this->merchantid = $this->settings['merchantid'];
$this->qpay_id = $this->settings['qpay_id'];
$this->qpay_pwd = $this->settings['qpay_pwd'];
$this->testmode = $this->settings['testmode'];
// IPN
if ( isset( $_GET[ 'payu_in_callback' ] ) && esc_attr( $_GET[ 'payu_in_callback' ] ) == '1' ) {
$this->check_transaction_status();
}
// Receipt
add_action( 'woocommerce_receipt_payu_in', array( $this, 'receipt_page' ) );
/* 1.6.6 */
add_action( 'woocommerce_update_options_payment_gateways', array( $this, 'process_admin_options' ) );
/* 2.0.0 */
add_action( 'woocommerce_update_options_payment_gateways_' . $this->id, array( $this, 'process_admin_options' ) );
} // End Constructor
/**
* Initialise Gateway Settings Form Fields
*
* @since 1.0.0
*/
function init_form_fields() {
$this->form_fields = array(
'enabled' => array(
'title' => __( 'Enable/Disable', 'woocommerce_qpay_in' ),
'type' => 'checkbox',
'label' => __( 'Enable Qpay', 'woocommerce_qpay_in' ),
'default' => 'yes'
),
'title' => array(
'title' => __( 'Title', 'woocommerce_qpay_in' ),
'type' => 'text',
'description' => __( 'This controls the title which the user sees during checkout page.', 'woocommerce_qpay_in' ),
'default' => __( 'Qpay', 'woocommerce_qpay_in' )
),
'description' => array(
'title' => __( 'Description', 'woocommerce_qpay_in' ),
'type' => 'textarea',
'description' => __( 'This controls the title which the user sees during checkout page.', 'woocommerce_qpay_in' ),
'default' => __( 'Direct payment via Qpay India. Qpay accepts Credit & Debit Cards of all major banks.', 'woocommerce_qpay_in' ),
),
'response_url' => array(
'title' => __( 'Response URL', 'woocommerce_qpay_in' ),
'type' => 'text',
'description' => __( 'The fully qualified Merchant URL to which the result of transactions will be posted', 'woocommerce_qpay_in' ),
'default' => ''
),
'case_number' => array(
'title' => __( 'Case Number', 'woocommerce_qpay_in' ),
'type' => 'text',
'description' => __( 'Case Number issued by QPayIndia for each Currency set-up.', 'woocommerce_qpay_in' ),
'default' => ''
),
'merchantid' => array(
'title' => __( 'Merchant ID', 'woocommerce_qpay_in' ),
'type' => 'text',
'description' => __( 'Please enter the Merchant Key provided by Qpay India', 'woocommerce_qpay_in' ),
'default' => ''
),
'qpay_id' => array(
'title' => __( 'Qpay ID', 'woocommerce_qpay_in' ),
'type' => 'text',
'description' => __( 'Please enter the Merchant Key provided by Qpay India', 'woocommerce_qpay_in' ),
'default' => ''
),
'qpay_pwd' => array(
'title' => __( 'Qpay Password', 'woocommerce_qpay_in' ),
'type' => 'text',
'description' => __( 'Please enter the Merchant Key provided by Qpay India', 'woocommerce_qpay_in' ),
'default' => ''
),
'testmode' => array(
'title' => __( 'Test Mode', 'woocommerce_qpay_in' ),
'type' => 'checkbox',
'label' => __( 'Enable Qpay Test Mode', 'woocommerce_qpay_in' ),
'default' => 'no'
)
);
} // End init_form_fields()
/**
* Get the plugin URL
*
* @since 1.0.0
*/
function plugin_url() {
if( isset( $this->plugin_url ) ) return $this->plugin_url;
if ( is_ssl() ) {
return $this->plugin_url = str_replace( 'http://', 'https://', WP_PLUGIN_URL ) . '/' . plugin_basename( dirname( dirname( __FILE__ ) ) );
} else {
return $this->plugin_url = WP_PLUGIN_URL . '/' . plugin_basename( dirname( dirname( __FILE__ ) ) );
}
} // End plugin_url()
/**
* Admin Panel Options
* - Options for bits like 'title' and availability on a country-by-country basis
*
* @since 1.0.0
*/
public function admin_options() {
?>
<h3><?php _e( 'Qpay India', 'woocommerce_qpay_in' ); ?></h3>
<p><?php _e( 'Qpay India works by sending the user to Qpay India to enter their payment information. Note that Qpay India will only take payments in Indian Rupee.', 'woocommerce_qpay_in' ); ?></p>
<?php
if ( get_option( 'woocommerce_currency' ) == 'INR' ) {
?>
<table class="form-table">
<?php
// Generate the HTML For the settings form.
$this->generate_settings_html();
?>
</table><!--/.form-table-->
<?php
} else {
?>
Pricing Options to enable the PayUMoney Gateway.', 'woocommerce_qpay_in' ), admin_url( '?page=woocommerce&tab=general' ) ); ?>
<?php
} // End check currency
} // End admin_options()
/**
* Add fields to pre-select method of payment
*
* @since 1.4
*/
function payment_fields() {
if ( $this->description ) { echo wpautop( wptexturize( $this->description ) ); }
if($this->cc_method == 'yes' || $this->dc_method == 'yes') {
?>
<fieldset>
<p class="form-row">
<label for="pg"><?php echo __("Choose a Payment Method", 'woocommerce_qpay_in') ?></label>
<?php if($this->cc_method == 'yes') { ?><input type="radio" name="pg" value="CC">Credit Card<br /><?php } ?>
<?php if($this->dc_method == 'yes') { ?><input type="radio" name="pg" value="DC">Debit Card<br /><?php } ?>
</p>
</fieldset>
<?php
}
} // End payment_fields()
/**
* Generate the Qpay India button link.
*
* @since 1.0.0
*/
function generate_qpay_in_form($order_id) {
global $woocommerce;
$order = new WC_Order($order_id);
$productinfo = sprintf( __( 'Order #%s from ', 'woocommerce_qpay_in' ), $order_id ) . get_bloginfo( 'name' );
//Hash data
$hash_data['MerchantUid'] = $this->merchantid;
$hash_data['QPayID'] = $this->qpay_id;
$hash_data['QPayPWD'] = $this->qpay_pwd;
$hash_data['CaseNumber'] = $this->case_number;
$hash_data['Amount'] = $order->order_total;
$hash_data['txnid'] = substr(hash('sha256', mt_rand() . microtime()), 0, 20); // Unique alphanumeric Transaction ID
//ISO Code For Currency...
$hash_data['Currency'] = 'INR';
// Check Mode of Operation
if($this->testmode == 'yes')
{
$hash_data['Mode'] = 'test';
}
else
{
$hash_data['Mode'] = 'live';
}
// Getting Order ID
$hash_data['OrderID'] = $order_id;
update_post_meta( $order_id, '_order_txnid', $hash_data['txnid'] );
$payu_in_args = array(
// Merchant details
'key' => $this->merchantid,
'surl' => add_query_arg( 'payu_in_callback', 1, $this->get_return_url( $order) ),
'furl' => add_query_arg(array('payu_in_callback' => 1, 'payu_in_status' => 'failed'), $this->get_return_url( $order)),
'curl' => add_query_arg(array('payu_in_callback' => 1, 'payu_in_status' => 'cancelled'), $this->get_return_url( $order)),
'service_provider'=>'payu_paisa',
// Customer details
'firstname' => $order->billing_first_name,
'lastname' => $order->billing_last_name,
'email' => $order->billing_email,
'address1' => $order->billing_address_1,
'address2' => $order->billing_address_2,
'city' => $order->billing_city,
'state' => $order->billing_state,
'zipcode' => $order->billing_postcode,
'country' => $order->billing_country,
'phone' => $order->billing_phone,
// Item details
'productinfo' => $productinfo,
'amount' => $order->order_total,
// Pre-selection of the payment method tab
'pg' => $this->get_get_var('pg')
);
$qpayform = '';
$qpayform .= '<input type="hidden" name="MerchantUid" value="' . $hash_data['MerchantUid'] . '" />' . "\n";
$qpayform .= '<input type="hidden" name="QPayID" value="' . $hash_data['QPayID'] . '" />' . "\n";
$qpayform .= '<input type="hidden" name="QPayPWD" value="' . $hash_data['QPayPWD'] . '" />' . "\n";
$qpayform .= '<input type="hidden" name="CaseNumber" value="' . $hash_data['CaseNumber'] . '" />' . "\n";
$qpayform .= '<input type="hidden" name="Currency" value="' . $hash_data['Currency'] . '" />' . "\n";
$qpayform .= '<input type="hidden" name="Mode" value="' . $hash_data['Mode'] . '" />' . "\n";
$payuform .= '<input type="hidden" name="txnid" value="' . $hash_data['txnid'] . '" />' . "\n";
$qpayform .= '<input type="hidden" name="OrderID" value="' . $hash_data['OrderID'] . '" />' . "\n";
$qpayform .= '<input type="hidden" name="OrderID" value="' . $hash_data['Amount'] . '" />' . "\n";
// Get the right URL in case the test mode is enabled
$posturl = $this->liveurl;
if ( $this->testmode == 'yes' )
{
$posturl = $this->testurl;
}
// The form
return '<form action="' . $posturl . '" method="POST" name="payform" id="payform">
' . $qpayform . '
<input type="submit" class="button" id="submit_qpay_in_payment_form" value="' . __( 'Pay via Qpay India', 'woocommerce_qpay_in' ) . '" /> <a class="button cancel" href="' . $order->get_cancel_order_url() . '">'.__( 'Cancel order & restore cart', 'woocommerce_qpay_in' ) . '</a>
jQuery(function(){
jQuery("body").block(
{
message: "![]()
plugin_url() . '/assets/images/ajax-loader.gif\" alt=\"Redirecting...\" />'.__('Thank you for your order. We are now redirecting you to Qpay India to make payment.', 'woothemes').'",
overlayCSS:
{
background: "#fff",
opacity: 0.6
},
css: {
padding: 20,
textAlign: "center",
color: "#555",
border: "3px solid #aaa",
backgroundColor:"#fff",
cursor: "wait"
}
});
jQuery("#submit_qpay_in_payment_form").click();
});
</form>';
} // End generate_qpay_in_form()
/**
* Process the payment and return the result.
*
* @since 1.0.0
*/
function process_payment($order_id) {
$order = new WC_Order($order_id);
return array(
'result' => 'success',
'redirect' => add_query_arg( 'order', $order->id, add_query_arg( 'pg', $this->get_post_var('pg'), $order->get_checkout_payment_url( true ) ) )
);
} // End process_payment()
/**
* Receipt page.
*
* Display text and a button to direct the user to the payment screen.
*
* @since 1.0.0
*/
function receipt_page($order) {
echo '<p>' . __( 'Thank you for your order, please click the button below to pay with Qpay India.', 'woocommerce_qpay_in' ) . '</p>';
echo $this->generate_qpay_in_form( $order );
} // End receipt_page()
/**
* Check the validity of data recived in $_POST and the status of transaction
*
* @since 1.0.0
*/
function check_transaction_status() {
global $woocommerce;
$salt = $this->salt;
if(!empty($_POST)) {
foreach($_POST as $key => $value) {
$txnRs[$key] = htmlentities($value, ENT_QUOTES);
}
} else {
die('No transaction data was passed!');
}
$txnid = $txnRs['txnid'];
/* Checking hash / true or false */
if($this->check_hash_after_transaction($salt, $txnRs)) {
if($txnRs['status']=='success'){
$this->payment_success($txnid);
}
if($txnRs['status']=='pending'){
$this->payment_pending($txnid);
}
if($txnRs['status']=='failure'){
$this->payment_failure($txnid);
}
} else {
die('Hash incorrect!');
}
} // End check_transaction_status()
/**
* @since 1.0.0
*/
function payment_success($txnid) {
global $woocommerce;
$args = array(
'meta_key' => '_order_txnid',
'meta_value' => $txnid,
'post_type' => 'shop_order',
'post_status' => 'publish'
);
$results = get_posts( $args );
if ( $results ) {
foreach ( $results as $result ) {
$order = new WC_Order();
$order->populate( $result );
break;
}
} else {
return false;
}
$order->add_order_note( __( 'Qpay payment completed', 'woocommerce_qpay_in' ) . ' (Transaction id: ' . $txnid . ')' );
$order->payment_complete();
$woocommerce->cart->empty_cart();
return true;
} // End payment_success()
/**
* @since 1.0.0
*/
function payment_pending($txnid) {
global $woocommerce;
$args = array(
'meta_key' => '_order_txnid',
'meta_value' => $txnid,
'post_type' => 'shop_order',
'post_status' => 'publish'
);
$results = get_posts( $args );
if ( $results ) {
foreach ( $results as $result ) {
$order = new WC_Order();
$order->populate( $result );
break;
}
} else {
return false;
}
$order->update_status('pending');
$order->add_order_note(sprintf( __( 'PayUMoney payment pending (Transaction id: %s)', 'woocommerce_qpay_in' ), $txnid ));
return false;
} // End payment_pending()
/**
* @since 1.0.0
*/
function payment_failure($txnid) {
global $woocommerce;
$args = array(
'meta_key' => '_order_txnid',
'meta_value' => $txnid,
'post_type' => 'shop_order',
'post_status' => 'publish'
);
$results = get_posts( $args );
if ( $results ) {
foreach ( $results as $result ) {
$order = new WC_Order();
$order->populate( $result );
break;
}
} else {
return false;
}
$order->update_status('failed');
$order->add_order_note(sprintf( __( 'PayUMoney payment failed (Transaction id: %s)', 'woocommerce_qpay_in' ), $txnid ));
return false;
} // End payment_failure()
This is my code for payment gateway.
i have done with the request parameters but i am not sure how to do it for response of payment gateway.mentioned below are my response parameters. please tell me how it will done for response parameters and what changes i will do in following code?
MSPReferenceID --- The unique reference ID issued by QPayIndia
MerchantOrderID --- The UniqueID for the order supplied by the Merchant
ResponseCode --- 3 digit response code
Message --- Description of the response code
Amount--- Transaction
/**
* @since 1.0.0
*/
function qpay_in_transaction_verification($txnid) {
$this->verification_liveurl = 'https://info.payu.in/merchant/postservice';
$this->verification_testurl = 'https://test.payu.in/merchant/postservice';
$host = $this->verification_liveurl;
if ( $this->testmode == 'yes' ) { $host = $this->verification_testurl; }
$hash_data['MerchantUid'] = $this->merchantid;
$hash_data['command'] = 'verify_payment';
$hash_data['var1'] = $txnid;
$hash_data['hash'] = $this->calculate_hash_before_verification($hash_data);
// Call the PayU, and verify the status
$response = $this->send_request($host, $hash_data);
$response = unserialize($response);
return $response['transaction_details'][$txnid]['status'];
} // End qpay_in_transaction_verification()
/**
* @since 1.0.0
*/
function send_request($host, $data) {
$response = wp_remote_post($host, array(
'method' => 'POST',
'body' => $data,
'timeout' => 70,
'sslverify' => false
));
if (is_wp_error($response))
throw new Exception(__('There was a problem connecting to the Qpay payment gateway.', 'woocommerce_qpay_in'));
if (empty($response['body']))
throw new Exception(__('Empty Qpay response.', 'woocommerce_qpay_in'));
$parsed_response = $response['body'];
return $parsed_response;
} // End send_request()
/**
* @since 1.0.0
*/
function calculate_hash_before_transaction($hash_data) {
$hash_sequence = "key|txnid|amount|productinfo|firstname|email|udf1|udf2|udf3|udf4|udf5|udf6|udf7|udf8|udf9|udf10";
$hash_vars_seq = explode('|', $hash_sequence);
$hash_string = '';
foreach($hash_vars_seq as $hash_var) {
$hash_string .= isset($hash_data[$hash_var]) ? $hash_data[$hash_var] : '';
$hash_string .= '|';
}
$hash_string .= $this->salt;
$hash_data['hash'] = strtolower(hash('sha512', $hash_string));
return $hash_data['hash'];
} // End calculate_hash_before_transaction()
/**
* @since 1.0.0
*/
function check_hash_after_transaction($salt, $txnRs) {
$hash_sequence = "key|txnid|amount|productinfo|firstname|email|udf1|udf2|udf3|udf4|udf5|udf6|udf7|udf8|udf9|udf10";
$hash_vars_seq = explode('|', $hash_sequence);
//generation of hash after transaction is = salt + status + reverse order of variables
$hash_vars_seq = array_reverse($hash_vars_seq);
$merc_hash_string = $salt . '|' . $txnRs['status'];
foreach ($hash_vars_seq as $merc_hash_var) {
$merc_hash_string .= '|';
$merc_hash_string .= isset($txnRs[$merc_hash_var]) ? $txnRs[$merc_hash_var] : '';
}
$merc_hash = strtolower(hash('sha512', $merc_hash_string));
/* The hash is valid */
if($merc_hash == $txnRs['hash']) {
return true;
} else {
return false;
}
} // End check_hash_after_transaction()
/**
* @since 1.0.0
*/
function calculate_hash_before_verification($hash_data) {
$hash_sequence = "key|command|var1";
$hash_vars_seq = explode('|', $hash_sequence);
$hash_string = '';
foreach($hash_vars_seq as $hash_var) {
$hash_string .= isset($hash_data[$hash_var]) ? $hash_data[$hash_var] : '';
$hash_string .= '|';
}
$hash_string .= $this->salt;
$hash_data['hash'] = strtolower(hash('sha512', $hash_string));
return $hash_data['hash'];
} // End calculate_hash_before_verification()
/**
* Get post data if set
*
* @since 1.4
*/
function get_post_var($name) {
if(isset($_POST[$name])) {
return $_POST[$name];
}
return NULL;
}
/**
* Get get data if set
*
* @since 1.4
*/
function get_get_var($name) {
if(isset($_GET[$name])) {
return $_GET[$name];
}
return NULL;
}
} // End Class
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