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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\DAV;
use Sabre\DAV\PropFind;
use Sabre\DAV\Server;
use Sabre\HTTP\ResponseInterface;
use SearchDAV\Backend\ISearchBackend;
use SearchDAV\Backend\SearchResult;
use SearchDAV\XML\BasicSearch;
class SearchHandler {
/** @var ISearchBackend */
private $searchBackend;
/** @var PathHelper */
private $pathHelper;
/** @var Server */
private $server;
/**
* @param ISearchBackend $searchBackend
* @param PathHelper $pathHelper
* @param Server $server
*/
public function __construct(ISearchBackend $searchBackend, PathHelper $pathHelper, Server $server) {
$this->searchBackend = $searchBackend;
$this->pathHelper = $pathHelper;
$this->server = $server;
}
public function handleSearchRequest($xml, ResponseInterface $response) {
if (!isset($xml['{DAV:}basicsearch'])) {
$response->setStatus(400);
$response->setBody('Unexpected xml content for searchrequest, expected basicsearch');
return false;
}
/** @var BasicSearch $query */
$query = $xml['{DAV:}basicsearch'];
if (!$query->where) {
$response->setStatus(400);
$response->setBody('Parse error: Missing {DAV:}where from {DAV:}basicsearch');
return false;
}
if (!$query->select) {
$response->setStatus(400);
$response->setBody('Parse error: Missing {DAV:}select from {DAV:}basicsearch');
return false;
}
$response->setStatus(207);
$response->setHeader('Content-Type', 'application/xml; charset="utf-8"');
foreach ($query->from as $scope) {
$scope->path = $this->pathHelper->getPathFromUri($scope->href);
}
$results = $this->searchBackend->search($query);
$data = $this->server->generateMultiStatus(iterator_to_array($this->getPropertiesIteratorResults($results, $query->select)), false);
$response->setBody($data);
return false;
}
/**
* Returns a list of properties for a given path
*
* The path that should be supplied should have the baseUrl stripped out
* The list of properties should be supplied in Clark notation. If the list is empty
* 'allprops' is assumed.
*
* If a depth of 1 is requested child elements will also be returned.
*
* @param SearchResult[] $results
* @param array $propertyNames
* @param int $depth
* @return \Iterator
*/
private function getPropertiesIteratorResults($results, $propertyNames = [], $depth = 0) {
$propFindType = $propertyNames ? PropFind::NORMAL : PropFind::ALLPROPS;
foreach ($results as $result) {
$node = $result->node;
$propFind = new PropFind($result->href, (array)$propertyNames, $depth, $propFindType);
$r = $this->server->getPropertiesByNode($propFind, $node);
if ($r) {
$result = $propFind->getResultForMultiStatus();
$result['href'] = $propFind->getPath();
// WebDAV recommends adding a slash to the path, if the path is
// a collection.
// Furthermore, iCal also demands this to be the case for
// principals. This is non-standard, but we support it.
$resourceType = $this->server->getResourceTypeForNode($node);
if (in_array('{DAV:}collection', $resourceType) || in_array('{DAV:}principal', $resourceType)) {
$result['href'] .= '/';
}
yield $result;
}
}
}
}