contact.module

<?php


/**
 * @file
 * Enables the use of personal and site-wide contact forms.
 */

/**
 * Implements hook_help().
 */
function contact_help($path, $arg) {
    switch ($path) {
        case 'admin/help#contact':
            $output = '';
            $output .= '<h3>' . t('About') . '</h3>';
            $output .= '<p>' . t('The Contact module allows visitors to contact site administrators and other users. Users specify a subject, write their message, and can have a copy of their message sent to their own e-mail address. For more information, see the online handbook entry for <a href="@contact">Contact module</a>.', array(
                '@contact' => 'http://drupal.org/documentation/modules/contact/',
            )) . '</p>';
            $output .= '<h3>' . t('Uses') . '</h3>';
            $output .= '<dl>';
            $output .= '<dt>' . t('User contact forms') . '</dt>';
            $output .= '<dd>' . t('Site users can be contacted with a user contact form that keeps their e-mail address private. Users may enable or disable their personal contact forms by editing their <em>My account</em> page. If enabled, a <em>Contact</em> tab leads to a personal contact form displayed on their user profile. Site administrators are still able to use the contact form, even if has been disabled. The <em>Contact</em> tab is not shown when you view your own profile.') . '</dd>';
            $output .= '<dt>' . t('Site-wide contact forms') . '</dt>';
            $output .= '<dd>' . t('The <a href="@contact">Contact page</a> provides a simple form for users with the <em>Use the site-wide contact form</em> permission to send comments, feedback, or other requests. You can create categories for directing the contact form messages to a set of defined recipients. Common categories for a business site, for example, might include "Website feedback" (messages are forwarded to website administrators) and "Product information" (messages are forwarded to members of the sales department). E-mail addresses defined within a category are not displayed publicly.', array(
                '@contact' => url('contact'),
            )) . '</p>';
            $output .= '<dt>' . t('Navigation') . '</dt>';
            $output .= '<dd>' . t("When the site-wide contact form is enabled, a link in the main <em>Navigation</em> menu is created, but the link is disabled by default. This menu link can be enabled on the <a href='@menu'>Menus administration page</a>.", array(
                '@contact' => url('contact'),
                '@menu' => url('admin/structure/menu'),
            )) . '</dd>';
            $output .= '<dt>' . t('Customization') . '</dt>';
            $output .= '<dd>' . t('If you would like additional text to appear on the site-wide or personal contact page, use a block. You can create and edit blocks on the <a href="@blocks">Blocks administration page</a>.', array(
                '@blocks' => url('admin/structure/block'),
            )) . '</dd>';
            $output .= '</dl>';
            return $output;
        case 'admin/structure/contact':
            $output = '<p>' . t('Add one or more categories on this page to set up your site-wide <a href="@form">contact form</a>.', array(
                '@form' => url('contact'),
            )) . '</p>';
            $output .= '<p>' . t('A <em>Contact</em> menu item (disabled by default) is added to the Navigation menu, which you can modify on the <a href="@menu-settings">Menus administration page</a>.', array(
                '@menu-settings' => url('admin/structure/menu'),
            )) . '</p>';
            $output .= '<p>' . t('If you would like additional text to appear on the site-wide contact page, use a block. You can create and edit blocks on the <a href="@blocks">Blocks administration page</a>.', array(
                '@blocks' => url('admin/structure/block'),
            )) . '</p>';
            return $output;
    }
}

/**
 * Implements hook_permission().
 */
function contact_permission() {
    return array(
        'administer contact forms' => array(
            'title' => t('Administer contact forms and contact form settings'),
        ),
        'access site-wide contact form' => array(
            'title' => t('Use the site-wide contact form'),
        ),
        'access user contact forms' => array(
            'title' => t("Use users' personal contact forms"),
        ),
    );
}

/**
 * Implements hook_menu().
 */
function contact_menu() {
    $items['admin/structure/contact'] = array(
        'title' => 'Contact form',
        'description' => 'Create a system contact form and set up categories for the form to use.',
        'page callback' => 'contact_category_list',
        'access arguments' => array(
            'administer contact forms',
        ),
        'file' => 'contact.admin.inc',
    );
    $items['admin/structure/contact/add'] = array(
        'title' => 'Add category',
        'page callback' => 'drupal_get_form',
        'page arguments' => array(
            'contact_category_edit_form',
        ),
        'access arguments' => array(
            'administer contact forms',
        ),
        'type' => MENU_LOCAL_ACTION,
        'weight' => 1,
        'file' => 'contact.admin.inc',
    );
    $items['admin/structure/contact/edit/%contact'] = array(
        'title' => 'Edit contact category',
        'page callback' => 'drupal_get_form',
        'page arguments' => array(
            'contact_category_edit_form',
            4,
        ),
        'access arguments' => array(
            'administer contact forms',
        ),
        'file' => 'contact.admin.inc',
    );
    $items['admin/structure/contact/delete/%contact'] = array(
        'title' => 'Delete contact',
        'page callback' => 'drupal_get_form',
        'page arguments' => array(
            'contact_category_delete_form',
            4,
        ),
        'access arguments' => array(
            'administer contact forms',
        ),
        'file' => 'contact.admin.inc',
    );
    $items['contact'] = array(
        'title' => 'Contact',
        'page callback' => 'drupal_get_form',
        'page arguments' => array(
            'contact_site_form',
        ),
        'access arguments' => array(
            'access site-wide contact form',
        ),
        'type' => MENU_SUGGESTED_ITEM,
        'file' => 'contact.pages.inc',
    );
    $items['user/%user/contact'] = array(
        'title' => 'Contact',
        'page callback' => 'drupal_get_form',
        'page arguments' => array(
            'contact_personal_form',
            1,
        ),
        'type' => MENU_LOCAL_TASK,
        'access callback' => '_contact_personal_tab_access',
        'access arguments' => array(
            1,
        ),
        'weight' => 2,
        'file' => 'contact.pages.inc',
    );
    return $items;
}

/**
 * Menu access callback for a user's personal contact form.
 *
 * @param $account
 *   The user object of the user whose contact form is being requested.
 */
function _contact_personal_tab_access($account) {
    global $user;
    // Anonymous users cannot have contact forms.
    if (!$account->uid) {
        return FALSE;
    }
    // User administrators should always have access to personal contact forms.
    if (user_access('administer users')) {
        return TRUE;
    }
    // Users may not contact themselves.
    if ($user->uid == $account->uid) {
        return FALSE;
    }
    // If the requested user has disabled their contact form, or this preference
    // has not yet been saved, do not allow users to contact them.
    if (empty($account->data['contact'])) {
        return FALSE;
    }
    // If requested user has been blocked, do not allow users to contact them.
    if (empty($account->status)) {
        return FALSE;
    }
    return user_access('access user contact forms');
}

/**
 * Loads a contact category.
 *
 * @param $cid
 *   The contact category ID.
 *
 * @return
 *   An array with the contact category's data.
 */
function contact_load($cid) {
    return db_select('contact', 'c')->addTag('translatable')
        ->fields('c')
        ->condition('cid', $cid)
        ->execute()
        ->fetchAssoc();
}

/**
 * Implements hook_mail().
 */
function contact_mail($key, &$message, $params) {
    $language = $message['language'];
    $variables = array(
        '!site-name' => variable_get('site_name', 'Drupal'),
        '!subject' => $params['subject'],
        '!category' => isset($params['category']['category']) ? $params['category']['category'] : '',
        '!form-url' => url($_GET['q'], array(
            'absolute' => TRUE,
            'language' => $language,
        )),
        '!sender-name' => format_username($params['sender']),
        '!sender-url' => $params['sender']->uid ? url('user/' . $params['sender']->uid, array(
            'absolute' => TRUE,
            'language' => $language,
        )) : $params['sender']->mail,
    );
    switch ($key) {
        case 'page_mail':
        case 'page_copy':
            $message['subject'] .= t('[!category] !subject', $variables, array(
                'langcode' => $language->language,
            ));
            $message['body'][] = t("!sender-name (!sender-url) sent a message using the contact form at !form-url.", $variables, array(
                'langcode' => $language->language,
            ));
            $message['body'][] = $params['message'];
            break;
        case 'page_autoreply':
            $message['subject'] .= t('[!category] !subject', $variables, array(
                'langcode' => $language->language,
            ));
            $message['body'][] = $params['category']['reply'];
            break;
        case 'user_mail':
        case 'user_copy':
            $variables += array(
                '!recipient-name' => format_username($params['recipient']),
                '!recipient-edit-url' => url('user/' . $params['recipient']->uid . '/edit', array(
                    'absolute' => TRUE,
                    'language' => $language,
                )),
            );
            $message['subject'] .= t('[!site-name] !subject', $variables, array(
                'langcode' => $language->language,
            ));
            $message['body'][] = t('Hello !recipient-name,', $variables, array(
                'langcode' => $language->language,
            ));
            $message['body'][] = t("!sender-name (!sender-url) has sent you a message via your contact form (!form-url) at !site-name.", $variables, array(
                'langcode' => $language->language,
            ));
            $message['body'][] = t("If you don't want to receive such e-mails, you can change your settings at !recipient-edit-url.", $variables, array(
                'langcode' => $language->language,
            ));
            $message['body'][] = t('Message:', array(), array(
                'langcode' => $language->language,
            ));
            $message['body'][] = $params['message'];
            break;
    }
}

/**
 * Implements hook_form_FORM_ID_alter().
 *
 * Add the enable personal contact form to an individual user's account page.
 *
 * @see user_profile_form()
 */
function contact_form_user_profile_form_alter(&$form, &$form_state) {
    if ($form['#user_category'] == 'account') {
        $account = $form['#user'];
        $form['contact'] = array(
            '#type' => 'fieldset',
            '#title' => t('Contact settings'),
            '#weight' => 5,
            '#collapsible' => TRUE,
        );
        $form['contact']['contact'] = array(
            '#type' => 'checkbox',
            '#title' => t('Personal contact form'),
            '#default_value' => !empty($account->data['contact']) ? $account->data['contact'] : FALSE,
            '#description' => t('Allow other users to contact you via a <a href="@url">personal contact form</a> which keeps your e-mail address hidden. Note that some privileged users such as site administrators are still able to contact you even if you choose to disable this feature.', array(
                '@url' => url("user/{$account->uid}/contact"),
            )),
        );
    }
}

/**
 * Implements hook_user_presave().
 */
function contact_user_presave(&$edit, $account, $category) {
    if (isset($edit['contact'])) {
        // Set new value.
        $edit['data']['contact'] = $edit['contact'];
    }
    elseif (!isset($account->data['contact'])) {
        // Use default if none has been set.
        $edit['data']['contact'] = variable_get('contact_default_status', 1);
    }
}

/**
 * Implements hook_form_FORM_ID_alter().
 *
 * Add the default personal contact setting on the user settings page.
 *
 * @see user_admin_settings()
 */
function contact_form_user_admin_settings_alter(&$form, &$form_state) {
    $form['contact'] = array(
        '#type' => 'fieldset',
        '#title' => t('Contact settings'),
        '#weight' => 0,
    );
    $form['contact']['contact_default_status'] = array(
        '#type' => 'checkbox',
        '#title' => t('Enable the personal contact form by default for new users.'),
        '#description' => t('Changing this setting will not affect existing users.'),
        '#default_value' => variable_get('contact_default_status', 1),
    );
}