function fb_devel_fb in Drupal for Facebook 6.2

Same name and namespace in other branches

1. 5.2 fb_devel.module \fb_devel_fb()
2. 5 fb_devel.module \fb_devel_fb()
3. 6.3 fb_devel.module \fb_devel_fb()
4. 7.4 fb_devel.module \fb_devel_fb()
5. 7.3 fb_devel.module \fb_devel_fb()

File

./fb_devel.module, line 49

Makes development with Drupal for Facebook much easier. Keep this module enabled until you're confident your app works perfectly.

Code

function fb_devel_fb($op, $data, &$return) {
  $fb_app = isset($data['fb_app']) ? $data['fb_app'] : NULL;
  $fb = isset($data['fb']) ? $data['fb'] : NULL;
  $errors = 0;
  if ($op == FB_OP_INITIALIZE) {
    if (fb_settings(FB_SETTINGS_APIKEY) && $fb_app->apikey != fb_settings(FB_SETTINGS_APIKEY)) {
      $message = t('Drupal for Facebook has detected a problem.  The global app has an apikey (%fb_app_apikey), while the settings indicates a different apikey (%fb_settings_apikey).', array(
        '%fb_app_apikey' => $fb_app->apikey,
        '%fb_settings_apikey' => fb_settings(FB_SETTINGS_APIKEY),
      ));
      drupal_set_message($message, 'error');
      watchdog('fb_devel', $message, array(), WATCHDOG_WARNING);
      $errors++;
    }
    $label = fb_settings(FB_SETTINGS_CB);

    // deprecated nid check.
    if ($label == $fb_app->nid) {
      $message = t('Facebook callback is using deprecated node id (%nid) instead of application label (%label).  <a href="!url">Editing the application</a> will usually correct this problem, which was caused by an update to the Drupal for Facebook modules.  Sorry for the inconvenience.', array(
        '%nid' => $fb_app->nid,
        '%label' => $fb_app->label,
        '!url' => url(FB_PATH_ADMIN_APPS . '/' . $fb_app->label),
      ));
      drupal_set_message($message, 'warning');
      watchdog('fb_devel', $message, array(), WATCHDOG_WARNING);
      $errors++;
    }
    elseif ($label && $label != $fb_app->label) {
      $message = t('fb_app id (%fb_app_id) does not equal fb settings id (%fb_settings_id).  This is usually caused by the wrong callback url on your <a href="!url">facebook application settings form</a>.', array(
        '%fb_app_id' => $fb_app->label,
        '%fb_settings_id' => $label,
        '!url' => "http://www.facebook.com/developers/apps.php",
      ));
      drupal_set_message($message, 'warning');
      watchdog('fb_devel', $message, array(), WATCHDOG_WARNING);
      $errors++;
    }

    // Theme sanity check.  Earlier errors cause this to fail.
    global $theme;

    // for debug message
    if (!$errors && isset($theme) && !variable_get('site_offline', FALSE)) {
      $message = t('Drupal for Facebook is unable to override the theme settings.  This is usually because some module causes theme_init() to be invoked before fb_init().  See the !readme.', array(
        '!drupal_for_facebook' => l(t('Drupal for Facebook'), 'http://drupal.org/project/fb'),
        // This link should work with clean URLs
        // disabled.
        '!readme' => '<a href=' . base_path() . '/' . drupal_get_path('module', 'fb') . '/README.txt>README.txt</a>',
      ));
      drupal_set_message($message, 'error');
      watchdog('fb_devel', $message, array(), WATCHDOG_WARNING);
    }

    // Catch badly formed links ASAP.
    if ($label && (fb_is_connect() && !fb_is_iframe_canvas())) {

      // Skip check on callbacks from facebook.
      if (arg(0) != 'fb_app' || arg(1) != 'event') {
        $message = t('URL starts with %prefix.  This should never happen on connect pages.  Did the previous page have a badly formed link?', array(
          '%prefix' => FB_SETTINGS_CB . '/' . $label,
        ));
        drupal_set_message($message, 'error');
        $errors++;
      }
    }

    // path replacement sanity check
    global $base_path;
    if ($base_path == "/{$fb_app->canvas}/") {
      $message = t('Facebook canvas page matches Drupal base_path (%base_path).  This is currently not supported.', array(
        '%base_path' => $base_path,
      ));
      drupal_set_message($message, 'error');
      watchdog('fb_devel', $message);
    }

    // server URL sanity check
    // This is an expensive test, because it invokes api_client.
    try {
      $props = $fb->api_client
        ->admin_getAppProperties(array(
        'connect_url',
        'callback_url',
      ));
      if (is_array($props)) {
        foreach ($props as $prop => $url) {
          if ($url && strpos($url, $GLOBALS['base_url']) === FALSE) {
            $message = t('The Facebook Application labeled %label has a suspicious %prop.  The value is %value, while something starting with %url was expected.  Consider editing !applink.', array(
              '%label' => $fb_app->label,
              '%prop' => $prop,
              '%value' => $url,
              '%url' => $GLOBALS['base_url'],
              '!applink' => l($fb_app->label, FB_PATH_ADMIN_APPS . '/' . $fb_app->label),
            ));
            if (user_access('access administration pages')) {
              drupal_set_message($message, 'error');
            }
            watchdog('fb_devel', $message);
          }
        }
      }
    } catch (FacebookRestClientException $e) {
      if ($e
        ->getCode() == 102) {

        // Session key invalid or no longer valid 102, which we can ignore.
      }
      else {
        fb_log_exception($e, t('Failed to get app properties for %name.', array(
          '%name' => $fb_app->title,
        )));
      }
    }

    // Require login sanity check.
    $fb_app_data = fb_get_app_data($fb_app);
    if (isset($fb_app_data['fb_user']) && $fb_app_data['fb_user']['require_login'] == FB_USER_OPTION_REQUIRE_LOGIN) {
      $message = 'Drupal for Facebook options for require login have changed.  You must manually <a href=!url>edit your application</a>.  Look for the require login options under canvas page options.  No longer under user options.';
      $args = array(
        '!url' => url(FB_PATH_ADMIN_APPS . '/' . $fb_app->label),
      );
      if (user_access('access administration pages')) {
        drupal_set_message(t($message, $args), 'error');
      }
      watchdog('fb_devel', $message, $args, WATCHDOG_ERROR);
    }
  }
  elseif ($op == FB_APP_OP_EVENT) {
    $type = $data['event_type'];

    // Facebook has notified us of some event.
    $message = t('Facebook has notified the %label application of a %type event.', array(
      '%label' => $fb_app->label,
      '%type' => $type,
    ));
    $message .= dprint_r($data, 1);
    $message .= dprint_r($_REQUEST, 1);
    watchdog('fb_devel', $message);
  }
  elseif ($op == FB_OP_CANVAS_EXIT && $data['fb'] && $return) {
    watchdog('fb_devel', 'Drupal is redirecting a canvas page, destination is %destination.', array(
      '%destination' => $return,
    ));
  }
}