ip_login-4.x-dev/ip_login.module

<?php

/**
 * @file
 * Hooks for the IP login module.
 */

use Drupal\Core\Entity\EntityTypeInterface;
use Drupal\Core\Field\BaseFieldDefinition;
use Drupal\Core\Field\FieldStorageDefinitionInterface;
use Drupal\Core\Form\FormStateInterface;
use Drupal\Core\Session\AccountInterface;
use Drupal\Core\Url;
use Drupal\ip_login\IpLoginController;
use Drupal\user\UserInterface;

/**
 * Implements hook_entity_base_field_info().
 */
function ip_login_entity_base_field_info(EntityTypeInterface $entity_type) {
  if ($entity_type->id() === 'user') {
    $fields['ip_login_data'] = BaseFieldDefinition::create('ipaddress')
      ->setLabel(t('Login IP Address'))
      ->setCardinality(FieldStorageDefinitionInterface::CARDINALITY_UNLIMITED)
      ->setSettings([
        'allow_family' => 10,
        'allow_range' => true,
      ])
      ->setDisplayOptions('form', [
        'type' => 'ipaddress_default',
      ])
      ->setDisplayConfigurable('form', TRUE)
      ->setDisplayOptions('view', [
        'region' => 'hidden',
      ])
      ->setDisplayConfigurable('view', TRUE);

    return $fields;
  }
}

/**
 * Implements hook_form_FORM_ID_alter() for 'user_login_form'.
 */
function ip_login_form_user_login_form_alter(&$form, FormStateInterface $form_state, $form_id) {
  // Adding the 'ip_login' cache tag even when the module is not configured to
  // use the 'form' login mode is needed so we can clear all the caches related
  // to this form (render, page cache, etc.) when the login mode is changed.
  $form['#cache']['tags'][] = 'ip_login';

  if (!\Drupal::config('ip_login.settings')->get('form_login')) {
    return;
  }

  if ($matched_uid = IpLoginController::checkIpLoginExists(\Drupal::request())) {
    $form['actions']['ip_login'] = [
      '#type' => 'link',
      '#title' => t('Log in automatically by IP'),
      '#url' => Url::fromRoute('ip_login.dologin', [], [
        'query' => \Drupal::destination()->getAsArray(),
      ]),
    ];
  }

  // The user login form needs to vary by the IP address of the current request
  // in order to be able to show the 'Log in automatically' link dynamically.
  $form['#cache']['contexts'][] = 'ip';
}

/**
 * Implements hook_ENTITY_TYPE_update() for the 'user' entity type.
 */
function ip_login_user_update(UserInterface $user) {
  // Invalidate the 'ip_login' cache tag whenever the 'IP Address' field of a
  // user entity has changed.
  $field_name = 'ip_login_data';
  if (!$user->get($field_name)->equals($user->original->get($field_name))) {
    \Drupal::service('cache_tags.invalidator')->invalidateTags(['ip_login']);
  }
}

/**
 * Implements hook_user_login().
 */
function ip_login_user_login(UserInterface $account) {
  // When a user logs in, unset all of our cookies to ensure that the user can
  // be logged-in automatically again. This is done by
  // \Drupal\ip_login\EventSubscriber\IpLoginSubscriber::onKernelResponse().
  $request = \Drupal::requestStack()->getMainRequest();
  $request->attributes->set('ip_login_user_login', TRUE);
}

/**
 * Implements hook_user_logout().
 */
function ip_login_user_logout(AccountInterface $account) {
  $request = \Drupal::requestStack()->getMainRequest();
  $request->attributes->set('ip_login_can_login_as_another_user', IpLoginController::canLoginAsAnotherUser($account));
}