wc-robokassa.php

<?php 
/*
  Plugin Name: Robokassa Payment Gateway (Saphali)
  Plugin URI: 
  Description: Allows you to use Robokassa payment gateway with the WooCommerce plugin.
  Version: 1.0.5
  Author: Alexander Kurganov, Saphali
  Author URI: http://saphali.com
  Text Domain: robokassa-payment-gateway-saphali
  Domain Path: /languages
 */

//TODO: Выбор платежной системы на стороне магазина

if ( ! defined( 'ABSPATH' ) ) exit; // Exit if accessed directly
 

/* Add a custom payment class to WC
  ------------------------------------------------------------ */
add_action('plugins_loaded', 'woocommerce_robokassa');

function woocommerce_robokassa(){
	load_plugin_textdomain( 'robokassa-payment-gateway-saphali',  false, dirname( plugin_basename( __FILE__ ) ) . '/languages' );
	if (!class_exists('WC_Payment_Gateway'))
		return; // if the WC payment gateway class is not available, do nothing
	if(class_exists('WC_ROBOKASSA'))
		return;
if( class_exists('WooCommerce_Payment_Status') )
add_filter( 'woocommerce_valid_order_statuses_for_payment', array( 'WC_ROBOKASSA', 'valid_order_statuses_for_payment' ), 52, 2 );
class WC_ROBOKASSA extends WC_Payment_Gateway{
	var $outsumcurrency = '';
	var $lang;
	public function __construct(){
		$woocommerce_currency = get_option('woocommerce_currency');
		if( in_array($woocommerce_currency, array('EUR', 'USD')) ) {
			$this->outsumcurrency = $woocommerce_currency;
		}
		$plugin_dir = plugin_dir_url(__FILE__);

		global $woocommerce;

		$this->id = 'robokassa';
		$this->icon = apply_filters('woocommerce_robokassa_icon', ''.$plugin_dir.'robokassa.png');
		$this->has_fields = false;
		$this->liveurl = 'https://auth.robokassa.ru/Merchant/Index.aspx';
		//$this->testurl = 'http://test.robokassa.ru/Index.aspx';

		// Load the settings
		$this->init_form_fields();
		$this->init_settings();

		// Define user set variables
		$this->title = $this->get_option('title');
		$this->robokassa_merchant = $this->get_option('robokassa_merchant');
		$this->robokassa_key1 = $this->get_option('robokassa_key1');
		$this->robokassa_key2 = $this->get_option('robokassa_key2');
		$this->testmode = $this->get_option('testmode');
		$this->lang = $this->get_option('lang');
		$this->lang = !empty( $this->lang ) ? $this->lang : 'ru';
		$this->debug = $this->get_option('debug');
		$this->description = $this->get_option('description');
		$this->instructions = $this->get_option('instructions');

		// Logs
		if ($this->debug=='yes') { if ( version_compare( WOOCOMMERCE_VERSION, '2.1', '<' ) ) $this->log = $woocommerce->logger(); else $this->log = new WC_Logger(); }

		// Actions
		add_action('valid-robokassa-standard-ipn-reques', array($this, 'successful_request') );
		add_action('woocommerce_receipt_' . $this->id, array($this, 'receipt_page'));

		// Save options
		add_action( 'woocommerce_update_options_payment_gateways_' . $this->id, array( $this, 'process_admin_options' ) );

		// Payment listener/API hook
		add_action('woocommerce_api_wc_' . $this->id, array($this, 'check_ipn_response'));

		if (!$this->is_valid_for_use()){
			$this->enabled = false;
		}
	}
	
	/**
	 * Check if this gateway is enabled and available in the user's country
	 */
	function is_valid_for_use(){
		if (!in_array(get_option('woocommerce_currency'), array('RUB', 'EUR', 'USD') )) {
			return false;
		}
		return true;
	}
	
	/**
	* Admin Panel Options 
	* - Options for bits like 'title' and availability on a country-by-country basis
	*
	* @since 0.1
	**/
	public function admin_options() {
		?>
		<h3><?php _e('ROBOKASSA', 'robokassa-payment-gateway-saphali'); ?></h3>
		<p><?php _e('Настройка приема электронных платежей через Merchant ROBOKASSA.', 'robokassa-payment-gateway-saphali'); ?></p>

	  <?php if ( $this->is_valid_for_use() ) : ?>

		<table class="form-table">

		<?php    	
    			// Generate the HTML For the settings form.
    			$this->generate_settings_html();
    ?>
    </table><!--/.form-table-->
    		
    <?php else : ?>
		<div class="inline error"><p><strong><?php _e('Шлюз отключен', 'robokassa-payment-gateway-saphali'); ?></strong>: <?php _e('ROBOKASSA не поддерживает валюты Вашего магазина.', 'robokassa-payment-gateway-saphali' ); ?></p></div>
		<?php
			endif;

    } // End admin_options()

  /**
  * Initialise Gateway Settings Form Fields
  *
  * @access public
  * @return void
  */
	function init_form_fields(){
		$debug = __('Включить логирование (<code>woocommerce/logs/' . $this->id . '.txt</code>)', 'robokassa-payment-gateway-saphali');
		if ( !version_compare( WOOCOMMERCE_VERSION, '2.0', '<' ) ) {
			if ( version_compare( WOOCOMMERCE_VERSION, '2.2.0', '<' ) )
			$debug = str_replace( $this->id , $this->id . '-' . sanitize_file_name( wp_hash( $this->id ) ), $debug );
			elseif( function_exists('wc_get_log_file_path') ) {
				$debug = str_replace( 'woocommerce/logs/' . $this->id . '.txt', '<a href="/wp-admin/admin.php?page=wc-status&tab=logs&log_file=' . $this->id . '-' . sanitize_file_name( wp_hash( $this->id ) ) . '-log" target="_blank">' . wc_get_log_file_path( $this->id ) . '</a>' , $debug );
			}
		}
		$this->form_fields = array(
				'enabled' => array(
					'title' => __('Включить/Выключить', 'robokassa-payment-gateway-saphali'),
					'type' => 'checkbox',
					'label' => __('Включен', 'robokassa-payment-gateway-saphali'),
					'default' => 'yes'
				),
				'title' => array(
					'title' => __('Название', 'robokassa-payment-gateway-saphali'),
					'type' => 'text', 
					'description' => __( 'Это название, которое пользователь видит во время проверки.', 'robokassa-payment-gateway-saphali' ), 
					'default' => __('ROBOKASSA', 'robokassa-payment-gateway-saphali')
				),
				'robokassa_merchant' => array(
					'title' => __('Идентификатор магазина', 'robokassa-payment-gateway-saphali'),
					'type' => 'text',
					'description' => __('Пожалуйста введите идентификатор магазина', 'robokassa-payment-gateway-saphali'),
					'default' => 'demo'
				),
				'robokassa_key1' => array(
					'title' => __('Пароль #1', 'robokassa-payment-gateway-saphali'),
					'type' => 'password',
					'description' => __('Пожалуйста введите пароль №1.', 'robokassa-payment-gateway-saphali'),
					'default' => ''
				),
				'robokassa_key2' => array(
					'title' => __('Пароль #2', 'robokassa-payment-gateway-saphali'),
					'type' => 'password',
					'description' => __('Пожалуйста введите пароль №2.', 'robokassa-payment-gateway-saphali'),
					'default' => ''
				),
				'testmode' => array(
					'title' => __('Тест режим', 'robokassa-payment-gateway-saphali'),
					'type' => 'checkbox', 
					'label' => __('Включен', 'robokassa-payment-gateway-saphali'),
					'description' => __('В этом режиме плата за товар не снимается.', 'robokassa-payment-gateway-saphali'),
					'default' => 'no'
				),
				'debug' => array(
					'title' => __('Debug', 'robokassa-payment-gateway-saphali'),
					'type' => 'checkbox',
					'label' => $debug,
					'default' => 'no'
				),
				'description' => array(
					'title' => __( 'Description', 'robokassa-payment-gateway-saphali' ),
					'type' => 'textarea',
					'description' => __( 'Описанием метода оплаты которое клиент будет видеть на вашем сайте.', 'robokassa-payment-gateway-saphali' ),
					'default' => 'Оплата с помощью robokassa.'
				),
				'instructions' => array(
					'title' => __( 'Instructions', 'robokassa-payment-gateway-saphali' ),
					'type' => 'textarea',
					'description' => __( 'Инструкции, которые будут добавлены на страницу благодарностей.', 'robokassa-payment-gateway-saphali' ),
					'default' => 'Оплата с помощью robokassa.'
				),
				'lang' => array(
					'title' => __( 'Язык общения с клиентом', 'robokassa-payment-gateway-saphali' ),
					'type' => 'select',
					'options' => array(
						"" => 'Выбрать',
						"ru" => "Русский",
						"en" => "English"
					),
					'description' => __( 'Вы определяете изначально сами, на каком языке интерфейс ROBOKASSA должен отображаться для клиента', 'robokassa-payment-gateway-saphali' ),
					'default' => 'ru'
				)
			);
	}

	/**
	* There are no payment fields for sprypay, but we want to show the description if set.
	**/
	function payment_fields(){
		if ($this->description){
			echo wpautop(wptexturize($this->description));
		}
	}
	static function valid_order_statuses_for_payment($statuses, $order){
		if($order->payment_method != 'robokassa') return $statuses; 
		$name =  'woocommerce_payment_status_action_pay_button_controller';
		$option_value = get_option( 'woocommerce_payment_status_action_pay_button_controller', array() );
		if(!is_array($option_value))
		  $option_value = array('pending', 'failed');
		if( !in_array('pending', $option_value) ) 
			 $option_value[] = 'pending';
		return $option_value;
	}
	/**
	* Generate the dibs button link
	**/
	public function generate_form($order_id){
		global $woocommerce;

		$order = new WC_Order( $order_id );
		$action_adr = $this->liveurl;



		$out_summ = number_format($order->order_total, 2, '.', '');
		if(empty($this->outsumcurrency) )
		$crc = $this->robokassa_merchant.':'.$out_summ.':'.$order_id.':'.$this->robokassa_key1 ;
		else
		$crc = $this->robokassa_merchant.':'.$out_summ.':'.$order_id.':' . $this->outsumcurrency . ':'.$this->robokassa_key1;

		$args = array(
				// Merchant
				'MrchLogin' => $this->robokassa_merchant,
				'OutSum' => $out_summ,
				'InvId' => $order_id,
				'SignatureValue' => md5($crc),
				'Culture' => $this->lang,
				'Encoding' => 'utf-8',
			);
		if(!empty($order->billing_email)) {
			$args['Email'] = $order->billing_email;
		}
		if ($this->testmode == 'yes'){
			//$action_adr = $this->testurl;
			$args['IsTest'] = 1;
		}
		if(!empty($this->outsumcurrency)) {
			$args['OutSumCurrency'] = $this->outsumcurrency;
		}
		$args = apply_filters('woocommerce_robokassa_args', $args);

		$args_array = array();
		
		foreach ($args as $key => $value){
			$args_array[] = '<input type="hidden" name="'.esc_attr($key).'" value="'.esc_attr($value).'" />';
		}

		 return
			'<form action="'.esc_url($action_adr).'" method="POST" id="robokassa_payment_form">'."\n".
			implode("\n", $args_array).
			'<input type="submit" class="button alt" id="submit_robokassa_payment_form" value="'.__('Оплатить', 'robokassa-payment-gateway-saphali').'" /> <a class="button cancel" href="'.$order->get_cancel_order_url().'">'.__('Отказаться от оплаты & вернуться в корзину', 'robokassa-payment-gateway-saphali').'</a>'."\n".
			'</form>'; 
	}
	
	/**
	 * Process the payment and return the result
	 **/
	function process_payment($order_id){
		$order = new WC_Order($order_id);
		if ( !version_compare( WOOCOMMERCE_VERSION, '2.1.0', '<' ) )
			return array(
				'result' => 'success',
				'redirect' => $order->get_checkout_payment_url( true )
			);
		return array(
			'result' => 'success',
			'redirect'	=> add_query_arg('order-pay', $order->id, add_query_arg('key', $order->order_key, get_permalink(woocommerce_get_page_id('pay'))))
		);
	}
	
	/**
	* receipt_page
	**/
	function receipt_page($order){
		echo '<p>'.__('Спасибо за Ваш заказ, пожалуйста, нажмите кнопку ниже, чтобы заплатить.', 'robokassa-payment-gateway-saphali').'</p>';
		echo $this->generate_form($order);
	}
	
	/**
	 * Check RoboKassa IPN validity
	 **/
	function check_ipn_request_is_valid($posted){
		$out_summ = $posted['OutSum'];
		$inv_id = $posted['InvId'];
		if(empty($this->outsumcurrency))
			$sign = strtoupper(md5($out_summ.':'.$inv_id.':'.$this->robokassa_key2));
		else
			$sign = strtoupper(md5($out_summ.':'.$inv_id . ':'.$this->outsumcurrency.':'.$this->robokassa_key2));
		
		if ($posted['SignatureValue'] == strtoupper(md5($out_summ.':'.$inv_id.':'.$this->robokassa_key2)) || $posted['SignatureValue'] == $sign)
		{
			echo 'OK'.$inv_id;
			return true;
		}

		return false;
	}
	
	/**
	* Check Response
	**/
	function check_ipn_response(){
		global $woocommerce;

		if (isset($_GET['robokassa']) AND $_GET['robokassa'] == 'result'){
			@ob_clean();

			$_POST = stripslashes_deep($_POST);
			
			if ($this->check_ipn_request_is_valid($_POST)){
        do_action('valid-robokassa-standard-ipn-reques', $_POST);
			}
			else{
				wp_die('IPN Request Failure');
			}
		}
		else if (isset($_GET['robokassa']) AND $_GET['robokassa'] == 'success'){
			$inv_id = $_POST['InvId'];
			$order = new WC_Order($inv_id);
			
			WC()->cart->empty_cart();

			wp_redirect( $this->get_return_url( $order ) );
		}
		else if (isset($_GET['robokassa']) AND $_GET['robokassa'] == 'fail'){
			$inv_id = $_POST['InvId'];
			$order = new WC_Order($inv_id);
			$order->update_status('failed', __('Платеж не оплачен', 'robokassa-payment-gateway-saphali'));

			wp_redirect( str_replace('&amp;', '&', $order->get_cancel_order_url() ) );
			exit;
		}

	}

	/**
	* Successful Payment!
	**/
	function successful_request($posted){
		global $woocommerce;

		$out_summ = $posted['OutSum'];
		$inv_id = $posted['InvId'];

		$order = new WC_Order($inv_id);

		// Check order not already completed
		if ($order->status == 'completed'){
			exit;
		}

		// Payment completed
		$order->add_order_note(__('Платеж успешно завершен.', 'robokassa-payment-gateway-saphali'));
		$order->payment_complete();
		exit;
	}
}

/**
 * Add the gateway to WooCommerce
 **/
function add_robokassa_gateway($methods){
	$methods[] = 'WC_ROBOKASSA';
	return $methods;
}

add_filter('woocommerce_payment_gateways', 'add_robokassa_gateway');
}
?>