wot.module

<?php
// $Id$

/**
 * @file
 * Functions for the WOT module.
 */

/**
 * Implements hook_init().
 */
function wot_init() {
  if ($wot = variable_get('wot', NULL) && drupal_is_front_page()) {
    $element = array(
      '#tag' => 'meta',
      '#attributes' => array(
        'name' => 'wot-verification',
        'content' => $wot,
      ),
    );
    drupal_add_html_head($element, 'wot');
  }
}

/**
 * Implements hook_requirements().
 */
function wot_requirements($phase) {
  if ($phase == 'runtime' && empty(variable_get('wot', NULL))) {
    $requirements = array();
    $requirements['wot'] = array(
      'title' => t('Web of Trust'),
      'description' => t('WOT module has not been configured yet. Please configure its settings from the <a href="@url">WOT settings page</a>.', array('@url' => url('admin/config/search/wot'))),
      'severity' => REQUIREMENT_ERROR,
      'value' => t('Not configured'),
    );
    return $requirements;
  }
}

/**
 * Implements hook_help().
 */
function wot_help($path, $arg) {
  $message = NULL;

  switch ($path) {
    case 'admin/help#wot':
      $message .= '<p>' . t('Register at <a href="@url">WOT website</a> to get your verification code.', array('@url' => url('http://www.mywot.com/', array('absolute' => TRUE, 'attributes' => array('target' => '_blank'))))) . '</p>';
      $message .= '<p>' . t('<a href="@url">Extensions and plugins</a> are available for Firefox, Chrome, Internet Explorer and Safari.', array('@url' => url('http://www.mywot.com/download', array('absolute' => TRUE, 'attributes' => array('target' => '_blank'))))) . '</p>';
      break;

    case 'admin/config/search/wot':
      $message .= '<p>' . t('Please set your Web of Trust verification code.') . '</p>';
      break;
  }

  return $message;
}

/**
 * Implements hook_menu().
 */
function wot_menu() {
  $items = array();
  $items['admin/config/search/wot'] = array(
    'title' => 'WOT',
    'description' => 'Manage Web of Trust settings.',
    'page callback' => 'drupal_get_form',
    'page arguments' => array('wot_admin_settings'),
    'access callback' => 'user_access',
    'access arguments' => array('administer website'),
    'type' => MENU_NORMAL_ITEM,
    'file' => 'wot.admin.inc',
  );
  return $items;
}

/**
 * Validate wot_admin_settings form.
 */
function wot_admin_settings_validate($form, &$form_state) {
  variable_del('wot');
  $wot = drupal_strtolower(trim($form_state['values']['wot']));
  $form_state['values']['wot'] = $wot;
  if (empty($wot)) {
    drupal_set_message(t('WOT verification code is empty.'), 'warning');
  }
  elseif (ctype_xdigit($wot) == FALSE) {
    form_set_error('wot', t('Unvalid WOT verification code : only digits and hexadecimal characters are allowed'));
  }
}

/**
 * Submit wot_admin_settings form.
 */
function wot_admin_settings_submit($form, &$form_state) {
  variable_set('wot', $form_state['values']['wot']);
  drupal_set_message(t('The configuration options have been saved.'));
}

/**
 * Submit Reset button from wot_admin_settings form.
 */
function wot_admin_settings_reset_submit($form, &$form_state) {
  variable_del('wot');
  drupal_set_message(t('The configuration options have been reset to their default values.'));
}