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- <?php
- /**
- * @file
- * Contains the SearchApiAlterNodeAccess class.
- */
- /**
- * Adds node access information to node indexes.
- */
- class SearchApiAlterNodeAccess extends SearchApiAbstractAlterCallback {
- /**
- * Overrides SearchApiAbstractAlterCallback::supportsIndex().
- *
- * Returns TRUE only for indexes on nodes.
- */
- public function supportsIndex(SearchApiIndex $index) {
- // Currently only node access is supported.
- return $index->getEntityType() === 'node';
- }
- /**
- * Overrides SearchApiAbstractAlterCallback::propertyInfo().
- *
- * Adds the "search_api_access_node" property.
- */
- public function propertyInfo() {
- return array(
- 'search_api_access_node' => array(
- 'label' => t('Node access information'),
- 'description' => t('Data needed to apply node access.'),
- 'type' => 'list<token>',
- ),
- );
- }
- /**
- * {@inheritdoc}
- */
- public function alterItems(array &$items) {
- static $account;
- if (!isset($account)) {
- // Load the anonymous user.
- $account = drupal_anonymous_user();
- }
- foreach ($items as $id => $item) {
- $node = $this->getNode($item);
- // Check whether all users have access to the node.
- if (!node_access('view', $node, $account)) {
- // Get node access grants.
- $result = db_query('SELECT * FROM {node_access} WHERE (nid = 0 OR nid = :nid) AND grant_view = 1', array(':nid' => $node->nid));
- // Store all grants together with their realms in the item.
- foreach ($result as $grant) {
- $items[$id]->search_api_access_node[] = "node_access_{$grant->realm}:{$grant->gid}";
- }
- }
- else {
- // Add the generic view grant if we are not using node access or the
- // node is viewable by anonymous users.
- $items[$id]->search_api_access_node = array('node_access__all');
- }
- }
- }
- /**
- * Retrieves the node related to a search item.
- *
- * In the default implementation for nodes, the item is already the node.
- * Subclasses may override this to easily provide node access checks for
- * items related to nodes.
- */
- protected function getNode($item) {
- return $item;
- }
- /**
- * Overrides SearchApiAbstractAlterCallback::configurationFormSubmit().
- *
- * If the data alteration is being enabled, set "Published" and "Author" to
- * "indexed", because both are needed for the node access filter.
- */
- public function configurationFormSubmit(array $form, array &$values, array &$form_state) {
- $old_status = !empty($form_state['index']->options['data_alter_callbacks']['search_api_alter_node_access']['status']);
- $new_status = !empty($form_state['values']['callbacks']['search_api_alter_node_access']['status']);
- if (!$old_status && $new_status) {
- $form_state['index']->options['fields']['status']['type'] = 'boolean';
- $form_state['index']->options['fields']['author']['type'] = 'integer';
- $form_state['index']->options['fields']['author']['entity_type'] = 'user';
- }
- return parent::configurationFormSubmit($form, $values, $form_state);
- }
- }
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