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<?php
declare(strict_types=1);
namespace Sabre\DAV\Xml\Request;
use Sabre\DAV\Exception\BadRequest;
use Sabre\Xml\Element\KeyValue;
use Sabre\Xml\Reader;
use Sabre\Xml\XmlDeserializable;
/**
* SyncCollection request parser.
*
* This class parses the {DAV:}sync-collection reprot, as defined in:
*
* http://tools.ietf.org/html/rfc6578#section-3.2
*
* @copyright Copyright (C) fruux GmbH (https://fruux.com/)
* @author Evert Pot (http://www.rooftopsolutions.nl/)
* @license http://sabre.io/license/ Modified BSD License
*/
class SyncCollectionReport implements XmlDeserializable
{
/**
* The sync-token the client supplied for the report.
*
* @var string|null
*/
public $syncToken;
/**
* The 'depth' of the sync the client is interested in.
*
* @var int
*/
public $syncLevel;
/**
* Maximum amount of items returned.
*
* @var int|null
*/
public $limit;
/**
* The list of properties that are being requested for every change.
*
* @var array|null
*/
public $properties;
/**
* The deserialize method is called during xml parsing.
*
* This method is called statically, this is because in theory this method
* may be used as a type of constructor, or factory method.
*
* Often you want to return an instance of the current class, but you are
* free to return other data as well.
*
* You are responsible for advancing the reader to the next element. Not
* doing anything will result in a never-ending loop.
*
* If you just want to skip parsing for this element altogether, you can
* just call $reader->next();
*
* $reader->parseInnerTree() will parse the entire sub-tree, and advance to
* the next element.
*
* @return mixed
*/
public static function xmlDeserialize(Reader $reader)
{
$self = new self();
$reader->pushContext();
$reader->elementMap['{DAV:}prop'] = 'Sabre\Xml\Element\Elements';
$elems = KeyValue::xmlDeserialize($reader);
$reader->popContext();
$required = [
'{DAV:}sync-token',
'{DAV:}prop',
];
foreach ($required as $elem) {
if (!array_key_exists($elem, $elems)) {
throw new BadRequest('The '.$elem.' element in the {DAV:}sync-collection report is required');
}
}
$self->properties = $elems['{DAV:}prop'];
$self->syncToken = $elems['{DAV:}sync-token'];
if (isset($elems['{DAV:}limit'])) {
$nresults = null;
foreach ($elems['{DAV:}limit'] as $child) {
if ('{DAV:}nresults' === $child['name']) {
$nresults = (int) $child['value'];
}
}
$self->limit = $nresults;
}
if (isset($elems['{DAV:}sync-level'])) {
$value = $elems['{DAV:}sync-level'];
if ('infinity' === $value) {
$value = \Sabre\DAV\Server::DEPTH_INFINITY;
}
$self->syncLevel = $value;
}
return $self;
}
}
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