2. Подключение PayQR

<?php
  function payqr_button_process($element) {
    $merchant_id = variable_get('commerce_payqr_merchant_id', '');
    if (!empty($merchant_id)) {
      $data = array(
        'merchId' => $merchant_id,
      );
      $js_url = url('https://payqr.ru/popup.js', array('query' => $data));
      $options = array(
        'type' => 'external',
        'scope' => 'header',
      );
      drupal_add_js($js_url, $options);
      $module_path = drupal_get_path('module','commerce_payqr');
      drupal_add_js($module_path . '/commerce_payqr.js');
    }
    $element['#attributes']['class'][] = 'payqr-button';
    $button_style = commerce_payqr_get_button_style();
    $element['#attributes']['class'] = array_merge($element['#attributes']['class'], $button_style['class']);
    if (!isset($element['#attributes']['style'])) {
      $element['#attributes']['style'] = array();
    }
    $element['#attributes']['style'] = array_merge($element['#attributes']['style'], $button_style['style']);
    return $element;
  }

  /**
   *  Implements hook_element_info().
   */
  function commerce_payqr_element_info() {
    $types['payqr_button'] = array(
      '#input' => FALSE,
      '#name' => 'payqr',
      '#button_type' => 'button',
      '#executes_submit_callback' => FALSE,
      '#limit_validation_errors' => FALSE,
      '#process' => array('ajax_process_form', 'payqr_button_process'),
      '#theme' => array('payqr_button'),
    );
    return $types;
  }

  /**
   *  Implements hook_theme().
   */
  function commerce_payqr_theme($existing, $type, $theme, $path) {
    return array(
      'payqr_button' => array(
        'render element' => 'element',
      ),
    );
  }

  function theme_payqr_button($variables) {
    $element = $variables['element'];
    $element['#attributes']['type'] = 'button';
    element_set_attributes($element, array('id', 'name', 'value'));

    $element['#attributes']['class'][] = 'form-' . $element['#button_type'];
    if (!empty($element['#attributes']['disabled'])) {
      $element['#attributes']['class'][] = 'form-button-disabled';
    }

    return '<button' . drupal_attributes($element['#attributes']) . '>' . $element['#value'] . '</button>';
  }

  /**
   * @param $scenario
   * @param array $data
   * @return array|bool
   */
  function commerce_payqr_get_data($scenario, $products, $quantity = 1) {
    $allowed_scenario = array('buy', 'pay');
    if (!in_array($scenario, $allowed_scenario)) {
      watchdog('commerce PayQR', 'Unallowed scenario');
      return FALSE;
    }
    global $user;
    $user_data = array();
    $data = array();
    $data['data-scenario'] = $scenario;

    //  $line_item_wrapper = entity_metadata_wrapper('commerce_line_item', $line_item);

    //  @todo Номер заказа в учетной системе интернет-сайта.
    //  Если номер заказа не заполняется на уровне кнопки, то его необходимо передать PayQR в дальнейшем ответом на уведомление от PayQR о событии invoice.order.creating.
    //  Пользователь не сможет приступить к оплате в PayQR, пока не получен номер заказа от интернет-сайта.
    //  $data['data-orderid'] = '';
    $data['data-orderid-custom'] = 'deny';
    $data['data-ordergroup'] = session_id();
    //  @todo Сумма заказа - обязательное поле. При необходимости интернет-сайт может изменить указанную в кнопке сумму заказа в дальнейшем ответом на уведомление от PayQR о событии invoice.order.creating.
    //  Пользователь не сможет приступить к оплате в PayQR, пока не получена сумма заказа от интернет-сайта.
    $cart_data = array();
    foreach ($products as $delta => $product) {
      $price = commerce_product_calculate_sell_price($product['product']);
      $product_wrapper = entity_metadata_wrapper('commerce_product', $product['product']);
      $cart_data[] = array(
        'article' => $product_wrapper->sku->value(),
        'name' => $product_wrapper->label(),
        'category' => 'SKU',  // @todo do not know meaning of category
        'quantity' => $product['quantity'],
        'amount' => $product['quantity'] * commerce_currency_amount_to_decimal($price['amount'], $price['currency_code']),
        'imageUrl' => '', // @todo need config image field per product types structure and config
      );
    }
    $data_amount = 0;
    foreach ($cart_data as $item) {
      $data_amount += $item['amount'];
    }
    $data['data-amount'] = $data_amount;
    $data['data-amount-custom'] = 'deny';
    $data['data-cart'] = drupal_json_encode($cart_data);

    $data['data-firstname-required'] = variable_get('commerce_payqr_firstname_required', 'default');
    $data['data-lastname-required'] = variable_get('commerce_payqr_firstname_required', 'default');
    $data['data-phone-required'] = variable_get('commerce_payqr_phone_required', 'default');
    if (user_is_anonymous()) {
      $data['data-email-required'] = 'required';
    }
    else {
      $data['data-email-required'] = 'deny';
      $customer = new stdClass();
      $customer->email = $user->mail;
      $user_data['customer'] = $customer;
      //    $data['data-email-required'] = variable_get('commerce_payqr_email_required', 'default');
    }

    if (module_exists('commerce_shipping')) {
      $data['data-delivery-required'] = variable_get('commerce_payqr_delivery_required', 'default');
      $data['data-deliverycases-required'] = variable_get('commerce_payqr_deliverycases_required', 'default');
      $data['data-pickpoints-required'] = variable_get('commerce_payqr_pickpoints_required', 'default');
    }
    else {
      $data['data-delivery-required'] = 'deny';
      $data['data-deliverycases-required'] = 'deny';
      $data['data-pickpoints-required'] = 'deny';
    }

    if (module_exists('commerce_coupon')) {
      $data['data-promo-required'] = variable_get('commerce_payqr_promo_required', 'default');
    }
    else {
      $data['data-promo-required'] = variable_get('commerce_payqr_promo_required', 'deny');
    }
    $data['data-promo-description'] = variable_get('commerce_payqr_promo_description', '');
    $data['data-commissionpercent'] = variable_get('commerce_payqr_commissionpercent', 0);
    $data['data-userdata'] = drupal_json_encode($user_data);

    $upsale_data = array();
    $upsale_data[] = array(
      'article' => 'SKU',
      'name' => 'SKU',
      'category' => 'SKU',
      'quantity' => 'SKU',
      'amount' => 'SKU',
      'imageUrl' => 'SKU',
    );
    $data['data-upsale'] = drupal_json_encode($upsale_data);

    $crosssale_data = array();
    $crosssale_data[] = array(
      'article' => 'SKU',
      'name' => 'SKU',
      'category' => 'SKU',
      'quantity' => 'SKU',
      'amount' => 'SKU',
      'imageUrl' => 'SKU',
    );
    $data['data-crosssale'] = drupal_json_encode($crosssale_data);

    $data['data-message-text'] = variable_get('commerce_payqr_message_text', '');
    $data['data-message-imageurl'] = variable_get('commerce_payqr_message_imageurl', '');
    $data['data-message-url'] = variable_get('commerce_payqr_message_url', '');

    return $data;
  }

  /**
   * Get PayQR button style.
   *
   * @return array
   */
  function commerce_payqr_get_button_style(){
    $style = &drupal_static(__FUNCTION__);
    if (!isset($style)) {
      $style = array();
      $style['class'][] = variable_get('commerce_payqr_button_color', 'payqr-button_green');
      $style['class'][] = variable_get('commerce_payqr_button_form', 'payqr-button_sharp');
      $style['class'][] = variable_get('commerce_payqr_button_gradient', 'payqr-button_flat');
      $style['class'][] = variable_get('commerce_payqr_button_text_case', 'payqr-button_standardcase');
      $style['class'][] = variable_get('commerce_payqr_button_text_width', 'payqr-button_font_normal');
      $style['class'][] = variable_get('commerce_payqr_button_text_size', 'payqr-button_text_normal');
      $style['style'][] = 'height:' . variable_get('commerce_payqr_button_height', 'auto') . ';';
      $style['style'][] = 'width:' . variable_get('commerce_payqr_button_width', 'auto') . ';';
    }
    return $style;
  }



  // Кнопка в корзине
  function commerce_payqr_form_commerce_cart_add_to_cart_form_alter(&$form, &$form_state, $form_id) {
    $form['payqr_button'] = array(
      '#type' => 'payqr_button',
      '#value' => t('Buy faster'),
      '#weight' => $form['submit']['#weight'] + 1,
    );
    if (isset($form['quantity'])) {
      $form['quantity']['#ajax'] = array(

      );
    }
    $products =  array(
      array(
        'product' => $form_state['default_product'],
        'quantity' => 1,
      )
    );
    $payqr_data = commerce_payqr_get_data('buy', $products);
    if ($payqr_data) {
      $form['payqr_button']['#attributes'] = $payqr_data;
    }
  }
?>

# .config.secretKeyIn 
# Значение берется для текущего environments, проверка не будет работать если сервер запущен в production, а значения указаны в development
if request.headers["PQRSecretKey"] == CONFIG["secretKeyIn"]
  # Условие выполняется
else
  # Не выполняется
end

import httplib
host = 'example.com'
connection = httplib.HTTPConnection(host)
connection.request("GET", "")
HTTPResponse = connection.getresponse()
###
# Вместо XXX должен быть входящий ключ SecretKeyIn этого «Магазина», указанный в личном кабинете в PayQR
secretKeyIn = "XXX" 
# Проверить, что запрос от сервера PayQR
if HTTPResponse.getheader("PQRSecretKey") == secretKeyIn: 
  pass

# Задать заголовок сервера для всего сайта или для определенного контроллера:
/app/controllers/application_controller.rb
class ApplicationController < ActionController::Base
  after_filter :payqrheaders
  private
    def payqrheaders
      response.headers["PQRSecretKey"]= CONFIG["secretKeyOut"]
    end
end
# Или добавить header в определеннный экшн-контроллер:
def show
  @product = Product.find(params[:id])
  response.headers["PQRSecretKeyOut-only-for-specefic-controller"]= CONFIG["secretKeyOut"]
end

import httplib
host = 'example.com'
conn = httplib.HTTPConnection(host)
###
# Вместо YYY должен быть исходящий ключ SecretKeyOut этого «Магазина», указанный в личном кабинете в PayQR
secretKeyOut = "YYY" 
headers = {"PQRSecretKey": secretKeyOut}
conn.request("GET", "", headers=headers)

# Проверяем тип события на соответствие типу события для создания заказа
def postfrompayqr
@payqrpostrequest = JSON.parse(request.raw_post)
respond_to do |format|
  if @payqrpostrequest.has_key?('type') && @payqrpostrequest['type'] == 'invoice.order.creating'
    format.json { render json: @payqrpostrequest, status: :created, location: @payqrpostrequest }
  else
    format.any { redirect_to :action => "new"}
  end
end
  # Посылаем POST:
  curl -XPOST 'http://yourdomain:port/products/postfrompayqr' --data '{"foo":"bar","type":"invoice.order.creating","abcdefghijklmnop":"qrstuvwxyz"}'
  # содержащий "type":"invoice.order.creating" в ответ рендерится посланный JSON (условие выполняется)
  # А если посылаем POST:
  curl -XPOST 'http://yourdomain:port/products/postfrompayqr' --data '{"foo":"bar","blah":"wat","abcdefghijklmnop":"qrstuvwxyz"}'
  # не содержащий нужного параметра, проверка не выполняется и происходит редирект.

import json
###
# request.POST - достаточно условная запись, конкретный способ получения содержимого POST будет зависеть от способа запуска приложения и фреймворка
event = json.loads(request.POST)
# Проверяем тип события на соответствие типу события для создания заказа
if "type" in event and event["type"] == "invoice.order.creating": 
  pass

def postfrompayqr
@payqrpostrequest = JSON.parse(request.raw_post)
  respond_to do |format|
    if @payqrpostrequest.has_key ? ('data') && @payqrpostrequest.has_key ? ('data').include ? ('object') && @payqrpostrequest['data', 'object'] == 'invoice'
      @invoice = @payqrpostrequest['data']
  end
end

import json
###
# request.POST - достаточно условная запись, конкретный способ получения содержимого POST будет зависеть от способа запуска приложения и фреймворка
# Получаем уведомление о событии из тела пришедшего POST-запроса от PayQR
event = json.loads(request.POST) 
if "data" in event and "object" in event["data"] and event["data"]["object"] == "invoice":
  # Объект «Счет на оплату» (invoice)
  invoice = event["data"]  

def postfrompayqr
  @payqrpostrequest = JSON.parse(request.raw_post)
  serialize = Array({
    :id => "#{@payqrpostrequest['id']}",
    :data => Array({
    :order_id => "0000000"})
  }).to_json
 puts YAML::dump(serialize)
end

import json
###
# request.POST - достаточно условная запись, конкретный способ получения содержимого POST будет зависеть от способа запуска приложения и фреймворка
event = json.loads(request.POST) 
# Получаем уведомление о событии из тела пришедшего POST-запроса от PayQR
json.dumps({
  "id": event["id"],
  "data": {
    "orderId": "00000000"
  }
})

<?php
  function commerce_payqr_reciver() {
    payqr_config::$enabledLog =  FALSE;
    payqr_config::$merchantID = variable_get('commerce_payqr_merchant_id', '');
    payqr_config::$secretKeyIn = variable_get('commerce_payqr_secret_key_in', '');
    payqr_config::$secretKeyOut = variable_get('commerce_payqr_secret_key_out', '');
    try{
      $Payqr = new payqr_receiver(); // создаем объект payqr_receiver
      $Payqr->receiving(); // получаем идентификатор счета на оплату в PayQR
      // проверяем тип уведомления от PayQR
      $type = $Payqr->getType();
      $handler = '_commerce_payqr_'. str_replace('.', '_', $type);
      watchdog('$handler', '<pre>!data</pre>', array('!data' => print_r($handler, 1)));
      module_load_include('inc','commerce_payqr','includes/handlers');
      if (function_exists($handler)) {
        $handler($Payqr);
      }
      watchdog('pre response', '<pre>!data</pre>', array('!data' => print_r($Payqr, 1)));
      $Payqr->response();
    }
    catch (payqr_exeption $e){
      if(file_exists(PAYQR_ERROR_HANDLER.'invoice_action_error.php'))
      {
        $response = $e->response;
        require PAYQR_ERROR_HANDLER.'receiver_error.php';
      }
    }
  }


  /**
   * нужно создать заказ в своей учетной системе, если заказ еще не был создан, и вернуть в PayQR полученный номер заказа (orderId), если его еще не было
   *
   * @param payqr_receiver $Payqr
   */
  function _commerce_payqr_invoice_order_creating(payqr_receiver $Payqr) {
    watchdog('debug', '<pre>!data</pre>', array('!data' => print_r($Payqr, 1)));
    global $user;
    // @todo create anon\\auth logic set order owner
    $cartObject = $Payqr->objectOrder->getCart();
    if ($cartObject) {
      // Create the new order in checkout; you might also check first to
      // see if your user already has an order to use instead of a new one.
      $order = commerce_order_new($user->uid, 'checkout_checkout');
      // Save the order to get its ID.
      commerce_order_save($order);
      // Link anonymous user session to the cart
      if (!$user->uid) {
        //  $customerObject = $Payqr->objectOrder->getCustomer();
        //  if ($customerObject) {
        //    $order->$customerObject
        //  }
        commerce_cart_order_session_save($order->order_id);
      }

      foreach ($cartObject as $payqr_product) {
        // Load whatever product represents the item the customer will be
        // paying for and create a line item for it.0
        $product = commerce_product_load_by_sku($payqr_product->article);
        $line_item = commerce_product_line_item_new($product, $payqr_product->quantity, $order->order_id);
        // Save the line item to get its ID.
        commerce_line_item_save($line_item);
        // Add the line item to the order using fago's rockin' wrapper.
        $order_wrapper = entity_metadata_wrapper('commerce_order', $order);
        $order_wrapper->commerce_line_items[] = $line_item;
      }

      //    $profile_types = commerce_customer_profile_types();

      $profile = commerce_customer_profile_new('billing', $user->uid);

      //    // Address field
      //    $profile->commerce_customer_address['und'][0]['country'] = "BE";
      //    $profile->commerce_customer_address['und'][0]['administrative_area'] = NULL;
      //    $profile->commerce_customer_address['und'][0]['sub_administrative_area'] = NULL;
      //    $profile->commerce_customer_address['und'][0]['locality'] = "Antwerpen";
      //    $profile->commerce_customer_address['und'][0]['dependent_locality'] = NULL;
      //    $profile->commerce_customer_address['und'][0]['postal_code'] = "2000";
      //    $profile->commerce_customer_address['und'][0]['thoroughfare'] = "Markt 1";
      //    $profile->commerce_customer_address['und'][0]['premise'] = "";
      //    $profile->commerce_customer_address['und'][0]['sub_premise'] = "";
      //    $profile->commerce_customer_address['und'][0]['organisation_name'] = "";
      //    $profile->commerce_customer_address['und'][0]['name_line'] = "Jimmy Henderickx";
      //    $profile->commerce_customer_address['und'][0]['first_name'] = "Jimmy";
      //    $profile->commerce_customer_address['und'][0]['last_name'] = "Henderickx";
      //    $profile->commerce_customer_address['und'][0]['data'] = NULL;

      commerce_customer_profile_save($profile);

      //create the right array for the save controller
      $profile_object = array (
        'und' => array (
          array (
            'profile_id' => $profile->profile_id,
          ),
        ),
      );

      $order->commerce_customer_billing = $profile_object;

      if (module_exists('commerce_shipping')) {
        $profile = commerce_customer_profile_new('shipping', $user->uid);
        commerce_customer_profile_save($profile);
        //create the right array for the save controller
        $profile_object = array (
          'und' => array (
            array (
              'profile_id' => $profile->profile_id,
            ),
          ),
        );

        $order->commerce_customer_shipping = $profile_object;

        // Add shipping to order if any selected.
        $shipping_service = $Payqr->objectOrder->getDeliveryCasesSelected();
        if ($shipping_service) {
          $service_name = $shipping_service->article;
          // Make the chosen service available to the order.
          commerce_shipping_service_rate_order($service_name, $order);
          // Delete any existing shipping line items from the order.
          commerce_shipping_delete_shipping_line_items($order, TRUE);

          // Extract the unit price from the calculated rate.
          $rate_line_item = $order->shipping_rates[$service_name];
          $rate_line_item_wrapper = entity_metadata_wrapper('commerce_line_item', $rate_line_item);
          $unit_price = $rate_line_item_wrapper->commerce_unit_price->value();

          // Create a new shipping line item with the calculated rate from the form.
          $line_item = commerce_shipping_line_item_new($service_name, $unit_price, $order->order_id, $rate_line_item->data, $rate_line_item->type);

          // Save and add the line item to the order.
          commerce_shipping_add_shipping_line_item($line_item, $order, TRUE);
        }
      }



      // Save the order again to update its line item reference field.
      commerce_order_save($order);
      $wrapper = entity_metadata_wrapper('commerce_order', $order);
      $transaction = commerce_payment_transaction_new('commerce_payqr', $order->order_id);
      $transaction->instance_id = 'commerce_payqr|commerce_payment_commerce_payqr';
      $transaction->amount =  commerce_currency_decimal_to_amount($Payqr->objectOrder->getAmount(), $wrapper->commerce_order_total->currency_code->value());
      $transaction->currency_code = $wrapper->commerce_order_total->currency_code->value();
      $transaction->status = COMMERCE_PAYMENT_STATUS_PENDING;
      $transaction->remote_id = $Payqr->objectOrder->getInvId();
      $transaction->message = $Payqr->getType();
      $transaction->remote_status = $Payqr->getType();
      $transaction->payload = $Payqr;
      $transaction->revision = TRUE;
      commerce_payment_transaction_save($transaction);
      $Payqr->objectOrder->setOrderId($order->order_id);
      $Payqr->objectOrder->setOrderGroup($transaction->transaction_id);
    }
  }
?>

<?php
  /**
   * нужно зафиксировать успешную оплату конкретного заказа
   *
   * @param payqr_receiver $Payqr
   */
  function _commerce_payqr_invoice_paid(payqr_receiver $Payqr) {
    watchdog("debug", "<pre>!data</pre>", array("!data" => print_r($Payqr, 1)));
    $transaction_id = $Payqr->objectOrder->getOrderGroup();
    $transaction = commerce_payment_transaction_load($transaction_id);
    if ($transaction) {
      $transaction->status = COMMERCE_PAYMENT_STATUS_SUCCESS;
      $transaction->remote_id = $Payqr->objectOrder->getInvId();
      $transaction->message = $Payqr->getType();
      $transaction->remote_status = $Payqr->getType();
      $transaction->payload = $Payqr;
      $transaction->revision = TRUE;
      $transaction->log = $Payqr->getType();

      commerce_payment_transaction_save($transaction);
      $order = commerce_order_load($transaction->order_id);
      if ($order) {
        commerce_order_status_update($order,'checkout_complete');
        commerce_checkout_complete($order);
      }
    }
  }
?>