yandex_smartcaptcha-1.0.2/yandex_smartcaptcha.module

<?php

/**
 * @file
 * Primary module hooks for yandex_smartcaptcha module.
 */

use Drupal\Core\Asset\AttachedAssetsInterface;
use Drupal\Core\Form\FormStateInterface;

/**
 * Implements hook_help().
 */
function yandex_smartcaptcha_help($route_name) {
  switch ($route_name) {
    case 'help.page.yandex_smartcaptcha':
      $output = '';
      $output .= '<h3>' . t('About') . '</h3>';
      $output .= '<p>' . t('This module provides Yandex SmartCaptcha integration.') . '</p>';
      return $output;
  }
}

/**
 * Implements hook_library_info_alter().
 */
function yandex_smartcaptcha_library_info_alter(&$libraries, $extension) {
  if ($extension === 'yandex_smartcaptcha' && isset($libraries['smartcaptcha.library'])) {
    $api_url = array_keys($libraries['smartcaptcha.library']['js']);
    $api_url = array_shift($api_url);
    $key = $api_url . '?render=onload&onload=smartCaptchaInit';
    $js = array_shift($libraries['smartcaptcha.library']['js']);
    $libraries['smartcaptcha.library']['js'][$key] = $js;
  }
}

/**
 * Implements hook_js_alter().
 */
function yandex_smartcaptcha_js_alter(&$javascript, AttachedAssetsInterface $assets) {
  $jquery_form = 'core/assets/vendor/jquery-form/jquery.form.min.js';
  $smartcaptcha_element = \Drupal::service('extension.list.module')
    ->getPath('yandex_smartcaptcha') . '/js/smartcaptcha-element.js';
  $library = \Drupal::service('library.discovery')
    ->getLibraryByName('yandex_smartcaptcha', 'smartcaptcha.library');
  $smartcaptcha_library = $library['js'][0]['data'];
  // Set correct loading order for dependent js libraries.
  if (isset($javascript[$smartcaptcha_element]) && isset($javascript[$jquery_form]) && $smartcaptcha_library) {
    $javascript[$smartcaptcha_element]['weight'] = $javascript[$jquery_form]['weight'] + .1;
    $javascript[$smartcaptcha_library]['weight'] = $javascript[$smartcaptcha_element]['weight'] + .1;
  }
}

/**
 * Implements hook_form_alter().
 */
function yandex_smartcaptcha_form_alter(&$form, FormStateInterface $form_state, $form_id) {
  /** @var \Drupal\yandex_smartcaptcha\YandexSmartCaptcha $smart_captcha */
  $smart_captcha = \Drupal::service('yandex_smartcaptcha.service');
  // Do not check if SmartCaptcha is disabled
  // or if the primary submit button is not clicked.
  foreach ($smart_captcha->getAttachedFormsIds() as $attached_form_id => $attached_form_settings) {
    if ($form_id == $attached_form_id && !empty($attached_form_settings['enabled'])) {
      $form['smartcaptcha_element'] = $smart_captcha->getCaptchaFormElement($attached_form_settings);
    }
  }

  // Make sure the Webform module is installed.
  if (\Drupal::moduleHandler()->moduleExists('webform')) {
    // Show smartcaptcha only on selected pages.
    if (!empty($form['#webform_id']) && !empty($form["smartcaptcha_element"])) {
      $current_page = $form_state->get('current_page');
      if ($form_state->get('pages') && $current_page) {
        if ($current_page != $smart_captcha->getCurrentWebformDisplayPage()) {
          // Hide captсha element.
          unset($form['smartcaptcha_element']);
        }
      }
    }
  }

}

/**
 * A hook_captcha_captcha implementation.
 */
function yandex_smartcaptcha_captcha($op, $captcha_type = '', $captcha_sid = NULL) {
  switch ($op) {
    case 'list':
      return ['Yandex SmartCaptcha'];

    case 'generate':
      if ($captcha_type == 'Yandex SmartCaptcha') {
        $captcha = [];
        // Build the reCAPTCHA captcha form if site_key and secret_key are
        // configured. Captcha requires TRUE to be returned in solution.
        $captcha['solution'] = TRUE;
        // As the validate callback does not depend on sid or solution, this
        // captcha type can be displayed on cached pages.
        $captcha['cacheable'] = TRUE;

        $captcha['form']['smartcaptcha_element'] = [
          '#type' => 'smartcaptcha_element',
          '#smartcaptcha' => [],
        ];

        $captcha['captcha_validate'] = 'yandex_smartcaptcha_captcha_validation';
        return $captcha;
      }
      break;
  }
}

/**
 * Implements mandatory hook_captcha_validation().
 */
function yandex_smartcaptcha_captcha_validation($solution, $response, $element, $form_state) {
  // The main validation was made in the
  // YandexSmartCaptchaElement::validateCaptcha() handler.
  // Here, we just check the token value.
  return !empty($element["captcha_token"]["#value"]);
}