function fb_requirements in Drupal for Facebook 7.4

Same name and namespace in other branches

1. 6.3 fb.install \fb_requirements()
2. 6.2 fb.install \fb_requirements()
3. 7.3 fb.install \fb_requirements()

Implementation of hook_requirements().

File

./fb.install, line 167

Code

function fb_requirements($phase) {
  $t = get_t();
  $items = array();

  // Disable these checks at install time, because failure then causes more
  // problems due to module dependencies and Drupal's poor handling of
  // requirement errors.
  if ($phase != 'runtime') {
    return $items;
  }

  // Default token
  $status = array(
    'title' => $t('Drupal for Facebook <a href=!url>Default Token</a>', array(
      '!url' => url(FB_PATH_ADMIN_CONFIG . '/settings/token'),
    )),
  );
  if ($token = variable_get(FB_VAR_ADMIN_ACCESS_TOKEN, NULL)) {
    try {
      $batch = fb_graph_batch(array(
        'me',
        'app',
      ), $token);
      extract($batch);

      // $me and $app
      $args = array(
        '!me_logo' => '//graph.facebook.com/' . $me['id'] . '/picture?type=square',
        '!me' => l($me['name'], $me['link']),
        '!app_logo' => $app['logo_url'],
        '!app' => l($app['name'], $app['link']),
      );
      $status += array(
        'severity' => REQUIREMENT_OK,
        'value' => $t('<img src=!me_logo /> <img src=!app_logo /> Token has the privileges of !me, via the application !app.', $args),
      );
    } catch (Exception $e) {
      $status += array(
        'severity' => REQUIREMENT_ERROR,
        'value' => $t('Token is not valid.'),
        'description' => $e
          ->getMessage(),
      );
    }
  }
  else {
    $status += array(
      'severity' => REQUIREMENT_WARNING,
      'value' => $t('No default token configured'),
    );
  }
  $items[] = $status;

  // Default App
  $status = array(
    'title' => $t('Drupal for Facebook <a href=!url>Default Application</a>', array(
      '!url' => url(FB_PATH_ADMIN_CONFIG . '/settings/app'),
    )),
  );
  $args = array();
  $app_data = variable_get(FB_VAR_DEFAULT_APP, NULL);
  if (!empty($app_data)) {
    try {
      $app = fb_graph($app_data['client_id']);
      foreach ($app as $key => $value) {
        $args['!' . $key] = $value;
      }
      $status += array(
        'severity' => REQUIREMENT_OK,
        'value' => l($app['name'], $app['link']),
        'description' => $t('<img src="!logo_url" />', $args),
      );
    } catch (Exception $e) {
      $status += array(
        'severity' => REQUIREMENT_ERROR,
        'value' => $t('Failed to get application details from facebook.'),
        'description' => $e
          ->getMessage(),
      );
    }
  }
  else {
    $status += array(
      'severity' => REQUIREMENT_WARNING,
      'value' => $t('No default application configured.'),
    );
  }
  $items[] = $status;
  if (!defined('JSON_BIGINT_AS_STRING')) {
    $items[] = array(
      'title' => $t('Drupal for Facebook PHP JSON decoding'),
      'severity' => REQUIREMENT_WARNING,
      'description' => $t('modules/fb expects JSON_BIGINT_AS_STRING for correct json decoding.'),
      'value' => phpversion(),
    );
  }
  return $items;
}