1<?php
2
3namespace Drupal\contact;
4
5use Drupal\Component\Datetime\TimeInterface;
6use Drupal\Core\Datetime\DateFormatterInterface;
7use Drupal\Core\Entity\ContentEntityForm;
8use Drupal\Core\Entity\EntityRepositoryInterface;
9use Drupal\Core\Entity\EntityTypeBundleInfoInterface;
10use Drupal\Core\Flood\FloodInterface;
11use Drupal\Core\Form\FormStateInterface;
12use Drupal\Core\Language\LanguageManagerInterface;
13use Symfony\Component\DependencyInjection\ContainerInterface;
14
15/**
16 * Form controller for contact message forms.
17 *
18 * @internal
19 */
20class MessageForm extends ContentEntityForm {
21
22  /**
23   * The message being used by this form.
24   *
25   * @var \Drupal\contact\MessageInterface
26   */
27  protected $entity;
28
29  /**
30   * The flood control mechanism.
31   *
32   * @var \Drupal\Core\Flood\FloodInterface
33   */
34  protected $flood;
35
36  /**
37   * The language manager service.
38   *
39   * @var \Drupal\Core\Language\LanguageManagerInterface
40   */
41  protected $languageManager;
42
43  /**
44   * The contact mail handler service.
45   *
46   * @var \Drupal\contact\MailHandlerInterface
47   */
48  protected $mailHandler;
49
50  /**
51   * The date formatter service.
52   *
53   * @var \Drupal\Core\Datetime\DateFormatterInterface
54   */
55  protected $dateFormatter;
56
57  /**
58   * Constructs a MessageForm object.
59   *
60   * @param \Drupal\Core\Entity\EntityRepositoryInterface $entity_repository
61   *   The entity repository.
62   * @param \Drupal\Core\Flood\FloodInterface $flood
63   *   The flood control mechanism.
64   * @param \Drupal\Core\Language\LanguageManagerInterface $language_manager
65   *   The language manager service.
66   * @param \Drupal\contact\MailHandlerInterface $mail_handler
67   *   The contact mail handler service.
68   * @param \Drupal\Core\Datetime\DateFormatterInterface $date_formatter
69   *   The date service.
70   * @param \Drupal\Core\Entity\EntityTypeBundleInfoInterface $entity_type_bundle_info
71   *   The entity type bundle service.
72   * @param \Drupal\Component\Datetime\TimeInterface $time
73   *   The time service.
74   */
75  public function __construct(EntityRepositoryInterface $entity_repository, FloodInterface $flood, LanguageManagerInterface $language_manager, MailHandlerInterface $mail_handler, DateFormatterInterface $date_formatter, EntityTypeBundleInfoInterface $entity_type_bundle_info = NULL, TimeInterface $time = NULL) {
76    parent::__construct($entity_repository, $entity_type_bundle_info, $time);
77    $this->flood = $flood;
78    $this->languageManager = $language_manager;
79    $this->mailHandler = $mail_handler;
80    $this->dateFormatter = $date_formatter;
81  }
82
83  /**
84   * {@inheritdoc}
85   */
86  public static function create(ContainerInterface $container) {
87    return new static(
88      $container->get('entity.repository'),
89      $container->get('flood'),
90      $container->get('language_manager'),
91      $container->get('contact.mail_handler'),
92      $container->get('date.formatter'),
93      $container->get('entity_type.bundle.info'),
94      $container->get('datetime.time')
95    );
96  }
97
98  /**
99   * {@inheritdoc}
100   */
101  public function form(array $form, FormStateInterface $form_state) {
102    $user = $this->currentUser();
103    $message = $this->entity;
104    $form = parent::form($form, $form_state, $message);
105    $form['#attributes']['class'][] = 'contact-form';
106
107    if (!empty($message->preview)) {
108      $form['preview'] = [
109        '#theme_wrappers' => ['container__preview'],
110        '#attributes' => ['class' => ['preview']],
111      ];
112      $form['preview']['message'] = $this->entityTypeManager->getViewBuilder('contact_message')->view($message, 'full');
113    }
114
115    $form['name'] = [
116      '#type' => 'textfield',
117      '#title' => $this->t('Your name'),
118      '#maxlength' => 255,
119      '#required' => TRUE,
120    ];
121    $form['mail'] = [
122      '#type' => 'email',
123      '#title' => $this->t('Your email address'),
124      '#required' => TRUE,
125    ];
126    if ($user->isAnonymous()) {
127      $form['#attached']['library'][] = 'core/drupal.form';
128      $form['#attributes']['data-user-info-from-browser'] = TRUE;
129    }
130    // Do not allow authenticated users to alter the name or email values to
131    // prevent the impersonation of other users.
132    else {
133      $form['name']['#type'] = 'item';
134      $form['name']['#value'] = $user->getDisplayName();
135      $form['name']['#required'] = FALSE;
136      $form['name']['#plain_text'] = $user->getDisplayName();
137
138      $form['mail']['#type'] = 'item';
139      $form['mail']['#value'] = $user->getEmail();
140      $form['mail']['#required'] = FALSE;
141      $form['mail']['#plain_text'] = $user->getEmail();
142    }
143
144    // The user contact form has a preset recipient.
145    if ($message->isPersonal()) {
146      $form['recipient'] = [
147        '#type' => 'item',
148        '#title' => $this->t('To'),
149        '#value' => $message->getPersonalRecipient()->id(),
150        'name' => [
151          '#theme' => 'username',
152          '#account' => $message->getPersonalRecipient(),
153        ],
154      ];
155    }
156
157    $form['copy'] = [
158      '#type' => 'checkbox',
159      '#title' => $this->t('Send yourself a copy'),
160      // Do not allow anonymous users to send themselves a copy, because it can
161      // be abused to spam people.
162      '#access' => $user->isAuthenticated(),
163    ];
164    return $form;
165  }
166
167  /**
168   * {@inheritdoc}
169   */
170  public function actions(array $form, FormStateInterface $form_state) {
171    $elements = parent::actions($form, $form_state);
172    $elements['submit']['#value'] = $this->t('Send message');
173    $elements['preview'] = [
174      '#type' => 'submit',
175      '#value' => $this->t('Preview'),
176      '#submit' => ['::submitForm', '::preview'],
177    ];
178    return $elements;
179  }
180
181  /**
182   * Form submission handler for the 'preview' action.
183   */
184  public function preview(array $form, FormStateInterface $form_state) {
185    $message = $this->entity;
186    $message->preview = TRUE;
187    $form_state->setRebuild();
188  }
189
190  /**
191   * {@inheritdoc}
192   */
193  public function validateForm(array &$form, FormStateInterface $form_state) {
194    $message = parent::validateForm($form, $form_state);
195
196    // Check if flood control has been activated for sending emails.
197    if (!$this->currentUser()->hasPermission('administer contact forms') && (!$message->isPersonal() || !$this->currentUser()->hasPermission('administer users'))) {
198      $limit = $this->config('contact.settings')->get('flood.limit');
199      $interval = $this->config('contact.settings')->get('flood.interval');
200
201      if (!$this->flood->isAllowed('contact', $limit, $interval)) {
202        $form_state->setErrorByName('', $this->t('You cannot send more than %limit messages in @interval. Try again later.', [
203          '%limit' => $limit,
204          '@interval' => $this->dateFormatter->formatInterval($interval),
205        ]));
206      }
207    }
208
209    return $message;
210  }
211
212  /**
213   * {@inheritdoc}
214   */
215  public function save(array $form, FormStateInterface $form_state) {
216    $message = $this->entity;
217    $user = $this->currentUser();
218    // Save the message. In core this is a no-op but should contrib wish to
219    // implement message storage, this will make the task of swapping in a real
220    // storage controller straight-forward.
221    $message->save();
222    $this->mailHandler->sendMailMessages($message, $user);
223    $contact_form = $message->getContactForm();
224
225    $this->flood->register('contact', $this->config('contact.settings')->get('flood.interval'));
226    if ($submission_message = $contact_form->getMessage()) {
227      $this->messenger()->addStatus($submission_message);
228    }
229
230    // To avoid false error messages caused by flood control, redirect away from
231    // the contact form; either to the contacted user account or the front page.
232    if ($message->isPersonal() && $user->hasPermission('access user profiles')) {
233      $form_state->setRedirectUrl($message->getPersonalRecipient()->toUrl());
234    }
235    else {
236      $form_state->setRedirectUrl($contact_form->getRedirectUrl());
237    }
238  }
239
240}
241