drupal_deliver_html_page

Versions

7

drupal_deliver_html_page($page_callback_result)

Package and send the result of a page callback to the browser as a normal HTML page.

See also

drupal_deliver_page

Parameters

$page_callback_result The result of a page callback. Can be one of:

• NULL: to indicate no content.
• An integer menu status constant: to indicate an error condition.
• A string of HTML content.
• A renderable array of content.

Code

includes/common.inc, line 2838

<?php
function drupal_deliver_html_page($page_callback_result) {
  // Menu status constants are integers; page content is a string or array.
  if (is_int($page_callback_result)) {
    // @todo: Break these up into separate functions?
    switch ($page_callback_result) {
      case MENU_NOT_FOUND:
        // Print a 404 page.
        drupal_add_http_header('404 Not Found');

        watchdog('page not found', check_plain($_GET['q']), NULL, WATCHDOG_WARNING);

        // Keep old path for reference, and to allow forms to redirect to it.
        if (!isset($_GET['destination'])) {
          $_GET['destination'] = $_GET['q'];
        }

        $path = drupal_get_normal_path(variable_get('site_404', ''));
        if ($path && $path != $_GET['q']) {
          // Custom 404 handler. Set the active item in case there are tabs to
          // display, or other dependencies on the path.
          menu_set_active_item($path);
          $return = menu_execute_active_handler($path, FALSE);
        }

        if (empty($return) || $return == MENU_NOT_FOUND || $return == MENU_ACCESS_DENIED) {
          // Standard 404 handler.
          drupal_set_title(t('Page not found'));
          $return = t('The requested page could not be found.');
        }

        drupal_set_page_content($return);
        $page = element_info('page');
        print drupal_render_page($page);
        break;

      case MENU_ACCESS_DENIED:
        // Print a 403 page.
        drupal_add_http_header('403 Forbidden');
        watchdog('access denied', check_plain($_GET['q']), NULL, WATCHDOG_WARNING);

        // Keep old path for reference, and to allow forms to redirect to it.
        if (!isset($_GET['destination'])) {
          $_GET['destination'] = $_GET['q'];
        }

        $path = drupal_get_normal_path(variable_get('site_403', ''));
        if ($path && $path != $_GET['q']) {
          // Custom 403 handler. Set the active item in case there are tabs to
          // display or other dependencies on the path.
          menu_set_active_item($path);
          $return = menu_execute_active_handler($path, FALSE);
        }

        if (empty($return) || $return == MENU_NOT_FOUND || $return == MENU_ACCESS_DENIED) {
          // Standard 403 handler.
          drupal_set_title(t('Access denied'));
          $return = t('You are not authorized to access this page.');
        }

        print drupal_render_page($return);
        break;

      case MENU_SITE_OFFLINE:
        // Print a 503 page.
        drupal_maintenance_theme();
        drupal_add_http_header('503 Service unavailable');
        drupal_set_title(t('Site under maintenance'));
        print theme('maintenance_page', array('content' => filter_xss_admin(variable_get('maintenance_mode_message',
          t('@site is currently under maintenance. We should be back shortly. Thank you for your patience.', array('@site' => variable_get('site_name', 'Drupal')))))));
        break;
    }
  }
  elseif (isset($page_callback_result)) {
    // Print anything besides a menu constant, assuming it's not NULL or
    // undefined.
    print drupal_render_page($page_callback_result);
  }

  // Perform end-of-request tasks.
  drupal_page_footer();
}
?>

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