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<?php
/**
* @copyright Copyright (c) 2017 Robin Appelman <robin@icewind.nl>
*
* @license GNU AGPL version 3 or any later version
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
namespace SearchDAV\Backend;
use Sabre\DAV\INode;
use SearchDAV\XML\BasicSearch;
use SearchDAV\XML\Scope;
interface ISearchBackend {
/**
* Get the path of the search arbiter of this backend
*
* The search arbiter is the URI that the client will send it's SEARCH requests to
* Note that this is not required to be the same as the search scopes which determine what to search in
*
* The returned value should be a path relative the root of the dav server.
*
* For example, if you want to support SEARCH requests on `https://example.com/dav.php/search`
* with the sabre/dav server listening on `/dav.php` you should return `search` as arbiter path.
*
* @return string
*/
public function getArbiterPath();
/**
* Whether or not the search backend supports search requests on this scope
*
* The scope defines the resource that it being searched, such as a folder or address book.
*
* Note that a search arbiter has no inherit limitations on which scopes it can support and scopes
* that reside on a different dav server entirely might be considered valid by an implementation.
*
* One example use case for this would be a service that provides additional indexing on a 3rd party service.
*
* @param string $href an absolute uri of the search scope
* @param string|integer $depth 0, 1 or 'infinite'
* @param string|null $path the path of the search scope relative to the dav server, or null if the scope is outside the dav server
* @return bool
*/
public function isValidScope($href, $depth, $path);
/**
* List the available properties that can be used in search
*
* This is used to tell the search client what properties can be queried, used to filter and used to sort.
*
* Since sabre's PropFind handling mechanism is used to return the properties to the client, it's required that all
* properties which are listed as selectable have a PropFind handler set.
*
* @param string $href an absolute uri of the search scope
* @param string|null $path the path of the search scope relative to the dav server, or null if the scope is outside the dav server
* @return SearchPropertyDefinition[]
*/
public function getPropertyDefinitionsForScope($href, $path);
/**
* Preform the search request
*
* The search results consist of the uri for the found resource and an INode describing the resource
* To return the properties requested by the query sabre's existing PropFind method is used, thus the search implementation
* is not required to collect these properties and is free to ignore the `select` part of the query
*
* @param BasicSearch $query
* @return SearchResult[]
*/
public function search(BasicSearch $query);
}