<?php

/**

 * @file

 * Page callbacks for the Contact module.

 */

/**

 * Form constructor for the site-wide contact form.

 *

 * @see contact_site_form_validate()

 * @see contact_site_form_submit()

 * @ingroup forms

 */

function contact_site_form($form, &$form_state) {

  global $user;

  // Check if flood control has been activated for sending e-mails.

  $limit = variable_get('contact_threshold_limit', 5);

  $window = variable_get('contact_threshold_window', 3600);

  if (!flood_is_allowed('contact', $limit, $window) && !user_access('administer contact forms')) {

    drupal_set_message(t("You cannot send more than %limit messages in @interval. Try again later.", array('%limit' => $limit, '@interval' => format_interval($window))), 'error');

    drupal_access_denied();

    drupal_exit();

  }

  // Get an array of the categories and the current default category.

  $categories = db_select('contact', 'c')

    ->addTag('translatable')

    ->fields('c', array('cid', 'category'))

    ->orderBy('weight')

    ->orderBy('category')

    ->execute()

    ->fetchAllKeyed();

  $default_category = db_query("SELECT cid FROM {contact} WHERE selected = 1")->fetchField();

  // If there are no categories, do not display the form.

  if (!$categories) {

    if (user_access('administer contact forms')) {

      drupal_set_message(t('The contact form has not been configured. <a href="@add">Add one or more categories</a> to the form.', array('@add' => url('admin/structure/contact/add'))), 'error');

    }

    else {

      drupal_not_found();

      drupal_exit();

    }

  }

  // If there is more than one category available and no default category has

  // been selected, prepend a default placeholder value.

  if (!$default_category) {

    if (count($categories) > 1) {

      $categories = array(0 => t('- Please choose -')) + $categories;

    }

    else {

      $default_category = key($categories);

    }

  }

  if (!$user->uid) {

    $form['#attached']['library'][] = array('system', 'jquery.cookie');

    $form['#attributes']['class'][] = 'user-info-from-cookie';

  }

  $form['#attributes']['class'][] = 'contact-form';

  $form['name'] = array(

    '#type' => 'textfield',

    '#title' => t('Your name'),

    '#maxlength' => 255,

    '#default_value' => $user->uid ? format_username($user) : '',

    '#required' => TRUE,

  );

  $form['mail'] = array(

    '#type' => 'textfield',

    '#title' => t('Your e-mail address'),

    '#maxlength' => 255,

    '#default_value' => $user->uid ? $user->mail : '',

    '#required' => TRUE,

  );

  $form['subject'] = array(

    '#type' => 'textfield',

    '#title' => t('Subject'),

    '#maxlength' => 255,

    '#required' => TRUE,

  );

  $form['cid'] = array(

    '#type' => 'select',

    '#title' => t('Category'),

    '#default_value' => $default_category,

    '#options' => $categories,

    '#required' => TRUE,

    '#access' => count($categories) > 1,

  );

  $form['message'] = array(

    '#type' => 'textarea',

    '#title' => t('Message'),

    '#required' => TRUE,

  );

  // We do not allow anonymous users to send themselves a copy

  // because it can be abused to spam people.

  $form['copy'] = array(

    '#type' => 'checkbox',

    '#title' => t('Send yourself a copy.'),

    '#access' => $user->uid,

  );

  $form['actions'] = array('#type' => 'actions');

  $form['actions']['submit'] = array(

    '#type' => 'submit',

    '#value' => t('Send message'),

  );

  return $form;

}

/**

 * Form validation handler for contact_site_form().

 *

 * @see contact_site_form_submit()

 */

function contact_site_form_validate($form, &$form_state) {

  if (!$form_state['values']['cid']) {

    form_set_error('cid', t('You must select a valid category.'));

  }

  if (!valid_email_address($form_state['values']['mail'])) {

    form_set_error('mail', t('You must enter a valid e-mail address.'));

  }

}

/**

 * Form submission handler for contact_site_form().

 *

 * @see contact_site_form_validate()

 */

function contact_site_form_submit($form, &$form_state) {

  global $user, $language;

  $values = $form_state['values'];

  $values['sender'] = clone $user;

  $values['sender']->name = $values['name'];

  $values['sender']->mail = $values['mail'];

  $values['category'] = contact_load($values['cid']);

  // Save the anonymous user information to a cookie for reuse.

  if (!$user->uid) {

    user_cookie_save(array_intersect_key($values, array_flip(array('name', 'mail'))));

  }

  // Get the to and from e-mail addresses.

  $to = $values['category']['recipients'];

  $from = $values['sender']->mail;

  // Send the e-mail to the recipients using the site default language.

  drupal_mail('contact', 'page_mail', $to, language_default(), $values, $from);

  // If the user requests it, send a copy using the current language.

  if ($values['copy']) {

    drupal_mail('contact', 'page_copy', $from, $language, $values, $from);

  }

  // Send an auto-reply if necessary using the current language.

  if ($values['category']['reply']) {

    drupal_mail('contact', 'page_autoreply', $from, $language, $values, $to);

  }

  flood_register_event('contact', variable_get('contact_threshold_window', 3600));

  watchdog('mail', '%sender-name (@sender-from) sent an e-mail regarding %category.', array('%sender-name' => $values['name'], '@sender-from' => $from, '%category' => $values['category']['category']));

  // Jump to home page rather than back to contact page to avoid

  // contradictory messages if flood control has been activated.

  drupal_set_message(t('Your message has been sent.'));

  $form_state['redirect'] = '';

}

/**

 * Form constructor for the personal contact form.

 *

 * Path: user/%user/contact

 *

 * @see contact_menu()

 * @see contact_personal_form_validate()

 * @see contact_personal_form_submit()

 * @ingroup forms

 */

function contact_personal_form($form, &$form_state, $recipient) {

  global $user;

  // Check if flood control has been activated for sending e-mails.

  $limit = variable_get('contact_threshold_limit', 5);

  $window = variable_get('contact_threshold_window', 3600);

  if (!flood_is_allowed('contact', $limit, $window) && !user_access('administer contact forms') && !user_access('administer users')) {

    drupal_set_message(t("You cannot send more than %limit messages in @interval. Try again later.", array('%limit' => $limit, '@interval' => format_interval($window))), 'error');

    drupal_access_denied();

    drupal_exit();

  }

  drupal_set_title(t('Contact @username', array('@username' => format_username($recipient))), PASS_THROUGH);

  if (!$user->uid) {

    $form['#attached']['library'][] = array('system', 'jquery.cookie');

    $form['#attributes']['class'][] = 'user-info-from-cookie';

  }

  $form['#attributes']['class'][] = 'contact-form';

  $form['recipient'] = array(

    '#type' => 'value',

    '#value' => $recipient,

  );

  $form['name'] = array(

    '#type' => 'textfield',

    '#title' => t('Your name'),

    '#maxlength' => 255,

    '#default_value' => $user->uid ? format_username($user) : '',

    '#required' => TRUE,

  );

  $form['mail'] = array(

    '#type' => 'textfield',

    '#title' => t('Your e-mail address'),

    '#maxlength' => 255,

    '#default_value' => $user->uid ? $user->mail : '',

    '#required' => TRUE,

  );

  $form['to'] = array(

    '#type' => 'item',

    '#title' => t('To'),

    '#markup' => theme('username', array('account' => $recipient)),

  );

  $form['subject'] = array(

    '#type' => 'textfield',

    '#title' => t('Subject'),

    '#maxlength' => 50,

    '#required' => TRUE,

  );

  $form['message'] = array(

    '#type' => 'textarea',

    '#title' => t('Message'),

    '#rows' => 15,

    '#required' => TRUE,

  );

  // We do not allow anonymous users to send themselves a copy

  // because it can be abused to spam people.

  $form['copy'] = array(

    '#type' => 'checkbox',

    '#title' => t('Send yourself a copy.'),

    '#access' => $user->uid,

  );

  $form['actions'] = array('#type' => 'actions');

  $form['actions']['submit'] = array(

    '#type' => 'submit',

    '#value' => t('Send message'),

  );

  return $form;

}

/**

 * Form validation handler for contact_personal_form().

 *

 * @see contact_personal_form_submit()

 */

function contact_personal_form_validate($form, &$form_state) {

  if (!valid_email_address($form_state['values']['mail'])) {

    form_set_error('mail', t('You must enter a valid e-mail address.'));

  }

}

/**

 * Form submission handler for contact_personal_form().

 *

 * @see contact_personal_form_validate()

 */

function contact_personal_form_submit($form, &$form_state) {

  global $user, $language;

  $values = $form_state['values'];

  $values['sender'] = clone $user;

  $values['sender']->name = $values['name'];

  $values['sender']->mail = $values['mail'];

  // Save the anonymous user information to a cookie for reuse.

  if (!$user->uid) {

    user_cookie_save(array_intersect_key($values, array_flip(array('name', 'mail'))));

  }

  // Get the to and from e-mail addresses.

  $to = $values['recipient']->mail;

  $from = $values['sender']->mail;

  // Send the e-mail in the requested user language.

  drupal_mail('contact', 'user_mail', $to, user_preferred_language($values['recipient']), $values, $from);

  // Send a copy if requested, using current page language.

  if ($values['copy']) {

    drupal_mail('contact', 'user_copy', $from, $language, $values, $from);

  }

  flood_register_event('contact', variable_get('contact_threshold_window', 3600));

  watchdog('mail', '%sender-name (@sender-from) sent %recipient-name an e-mail.', array('%sender-name' => $values['name'], '@sender-from' => $from, '%recipient-name' => $values['recipient']->name));

  // Jump to the contacted user's profile page.

  drupal_set_message(t('Your message has been sent.'));

  $form_state['redirect'] = user_access('access user profiles') ? 'user/' . $values['recipient']->uid : '';

}