function asaf_pagecache_get_form in Asaf (ajax submit for any form) 8

Same name and namespace in other branches

1. 7 asaf.pages.inc \asaf_pagecache_get_form()

1 call to asaf_pagecache_get_form()

asaf_pagecache_form_callback in ./asaf.pages.inc

File

./asaf.pages.inc, line 23

Code

function asaf_pagecache_get_form() {
  $form_state = form_state_defaults();
  $form_build_id = $_POST['form_build_id'];

  // Get the form from the cache.
  $form = form_get_cache($form_build_id, $form_state);
  if (!$form) {
    $asaf_token = $_POST['asaf_form'];
    if ($asaf_token && $asaf_token === asaf_get_security_token($_POST['form_id'], $_POST['form_build_id'])) {

      // Trying to get from cache and load files for the case when file with form constructor hasn't loaded yet.
      $options_cache = cache_get('asaf_form_' . $_POST['form_id'] . '_options', 'cache_form');
      $form_state['build_info']['files'] = isset($options_cache->data['needed_files']) && is_array($options_cache->data['needed_files']) ? $options_cache->data['needed_files'] : array();
      asaf_load_needed_files($form_state['build_info']['files']);
      if (isset($_POST['asaf_form_path'])) {
        $form_state['asaf']['form_path'] = $_POST['asaf_form_path'];
      }
      if (isset($_POST['asaf_id_prefix'])) {
        $form_state['asaf']['id_prefix'] = $_POST['asaf_id_prefix'];
      }

      // For asaf owns forms, which has asaf security token, rebuild form if it
      // doesn't have cache. It allows asaf works when page cache is enabled.
      $form = drupal_build_form($_POST['form_id'], $form_state);
    }
    else {

      // If $form cannot be loaded from the cache, the form_build_id in $_POST
      // must be invalid, which means that someone performed a POST request onto
      // system/ajax without actually viewing the concerned form in the browser.
      // This is likely a hacking attempt as it never happens under normal
      // circumstances, so we just do nothing.
      watchdog('ajax', 'Invalid form POST data.', array(), WATCHDOG_WARNING);
      drupal_exit();
    }
  }

  // Since some of the submit handlers are run, redirects need to be disabled.
  $form_state['no_redirect'] = TRUE;

  // When a form is rebuilt after Ajax processing, its #build_id and #action
  // should not change.
  // @see drupal_rebuild_form()
  $form_state['rebuild_info']['copy']['#build_id'] = TRUE;
  $form_state['rebuild_info']['copy']['#action'] = TRUE;

  // The form needs to be processed; prepare for that by setting a few internal
  // variables.
  $form_state['input'] = $_POST;
  $form_id = $form['#form_id'];
  return array(
    $form,
    $form_state,
    $form_id,
    $form_build_id,
  );
}