<?php
/**
 * @file
 * Primary file - Drupal hooks here
 */

/**
 * @author
 * Sergey Serov
 * www.sergey-serov.ru
 */

require_once (DRUPAL_ROOT . '/' . drupal_get_path('module', 'google_recaptcha') . '/google_recaptcha.under_hood.inc');

/**
 * Implements hook_menu().
 */
function google_recaptcha_menu() {
  $items = array();

  // admin pages only
  $items['admin/config/spam_protection'] = array(
    'title' => 'Spam protection',
    'position' => 'right',
    'weight' => 80,
    'page callback' => 'system_admin_menu_block_page',
    'access arguments' => array('administer site configuration'),
    'file' => 'system.admin.inc',
    'file path' => drupal_get_path('module', 'system'),
  );
  $items['admin/config/spam_protection/google_recaptcha'] = array(
    'title' => 'Google reCAPTCHA',
    'page callback' => 'g_summary',
    'access arguments' => array('administer site configuration'),
    'type' => MENU_NORMAL_ITEM,
    'file' => 'google_recaptcha.admin.inc',
    'weight' => 10,
  );
  $items['admin/config/spam_protection/google_recaptcha/summary'] = array(
    'title' => 'Summary',
    'access arguments' => array('administer site configuration'),
    'type' => MENU_DEFAULT_LOCAL_TASK,
    'weight' => 10,
  );
  $items['admin/config/spam_protection/google_recaptcha/forms'] = array(
    'title' => 'Forms for protection',
    'page callback' => 'drupal_get_form',
    'page arguments' => array('g_forms'),
    'access arguments' => array('administer site configuration'),
    'type' => MENU_LOCAL_TASK,
    'file' => 'google_recaptcha.admin.inc',
    'weight' => 20,
  );
  $items['admin/config/spam_protection/google_recaptcha/keys'] = array(
    'title' => 'Keys and settings',
    'page callback' => 'drupal_get_form',
    'page arguments' => array('g_tune'),
    'access arguments' => array('administer site configuration'),
    'type' => MENU_LOCAL_TASK,
    'file' => 'google_recaptcha.admin.inc',
    'weight' => 30,
  );

  return $items;
}

/**
 * Implements hook_form_alter().
 */
function google_recaptcha_form_alter(&$form, &$form_state, $form_id) {

  if (user_is_logged_in()) {
    return;
  }

  $tune = variable_get('google_recaptcha');

  // For security usability reasons - form for recovery pass always protected
  $always_protected = array(
    'user_pass',
  );

  drupal_alter('google_recaptcha_always_protect', $always_protected);

  if (in_array($form_id, $always_protected)) {
    g_add_captcha($form, $form_id);
  }

  foreach ($tune['protected_forms'] as $protected_form_name) {
    if (strstr($form_id, $protected_form_name)) {
      g_add_captcha($form, $form_id);
    }
  }
}