/** * Creates a new filter to use with this query object. * * @param string $conjunction * The conjunction to use for the filter - either 'AND' or 'OR'. * @param string[] $tags * (optional) Tags to set on the filter. * * @return \Drupal\search_api\Query\FilterInterface * A filter object that is set to use the specified conjunction. * * @see \Drupal\search_api\Query\QueryInterface::createFilter() */ public function createFilter($conjunction = 'AND', array $tags = array()) { if (!$this->shouldAbort()) { return $this->query->createFilter($conjunction, $tags); } return NULL; }
/** * Adds a node access filter to a search query, if applicable. * * @param \Drupal\search_api\Query\QueryInterface $query * The query to which a node access filter should be added, if applicable. * @param \Drupal\Core\Session\AccountInterface $account * The user for whom the search is executed. * * @throws \Drupal\search_api\SearchApiException * Thrown if not all necessary fields are indexed on the index. */ protected function addNodeAccess(QueryInterface $query, AccountInterface $account) { // Don't do anything if the user can access all content. if ($account->hasPermission('bypass node access')) { return; } // Gather the affected datasources, grouped by entity type, as well as the // unaffected ones. $affected_datasources = array(); $unaffected_datasources = array(); foreach ($this->index->getDatasources() as $datasource_id => $datasource) { $entity_type = $datasource->getEntityTypeId(); if (in_array($entity_type, array('node', 'comment'))) { $affected_datasources[$entity_type][] = $datasource_id; } else { $unaffected_datasources[] = $datasource_id; } } // The filter structure we want looks like this: // [belongs to other datasource] // OR // ( // [is enabled (or was created by the user, if applicable)] // AND // [grants view access to one of the user's gid/realm combinations] // ) // If there are no "other" datasources, we don't need the nested OR, // however, and can add the "ADD" // @todo Add a filter tag, once they are implemented. if ($unaffected_datasources) { $outer_filter = $query->createFilter('OR'); $query->filter($outer_filter); foreach ($unaffected_datasources as $datasource_id) { $outer_filter->condition('search_api_datasource', $datasource_id); } $access_filter = $query->createFilter('AND'); $outer_filter->filter($access_filter); } else { $access_filter = $query; } if (!$account->hasPermission('access content')) { unset($affected_datasources['node']); } if (!$account->hasPermission('access comments')) { unset($affected_datasources['comment']); } // If the user does not have the permission to see any content at all, deny // access to all items from affected datasources. if (!$affected_datasources) { // If there were "other" datasources, the existing filter will already // remove all results of node or comment datasources. Otherwise, we should // not return any results at all. if (!$unaffected_datasources) { // @todo More elegant way to return no results? $query->condition('search_api_language', ''); } return; } // Collect all the required fields that need to be part of the index. $unpublished_own = $account->hasPermission('view own unpublished content'); $enabled_filter = $query->createFilter('OR'); foreach ($affected_datasources as $entity_type => $datasources) { $published = $entity_type == 'node' ? NODE_PUBLISHED : Comment::PUBLISHED; foreach ($datasources as $datasource_id) { // If this is a comment datasource, or users cannot view their own // unpublished nodes, a simple filter on "status" is enough. Otherwise, // it's a bit more complicated. $status_field = Utility::createCombinedId($datasource_id, 'status'); $enabled_filter->condition($status_field, $published); if ($entity_type == 'node' && $unpublished_own) { $author_field = Utility::createCombinedId($datasource_id, 'uid'); $enabled_filter->condition($author_field, $account->id()); } } } $access_filter->filter($enabled_filter); // Filter by the user's node access grants. $grants_filter = $query->createFilter('OR'); $grants = node_access_grants('view', $account); foreach ($grants as $realm => $gids) { foreach ($gids as $gid) { $grants_filter->condition('search_api_node_grants', "node_access_{$realm}:{$gid}"); } } // Also add items that are accessible for everyone by checking the "access // all" pseudo grant. $grants_filter->condition('search_api_node_grants', 'node_access__all'); $access_filter->filter($grants_filter); }