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Editing: LockDiscovery.php

<?php

declare(strict_types=1);

namespace Sabre\DAV\Xml\Property;

use Sabre\DAV;
use Sabre\DAV\Locks\LockInfo;
use Sabre\Xml\Element\XmlFragment;
use Sabre\Xml\Writer;
use Sabre\Xml\XmlSerializable;

/**
 * Represents {DAV:}lockdiscovery property.
 *
 * This property is defined here:
 * http://tools.ietf.org/html/rfc4918#section-15.8
 *
 * This property contains all the open locks on a given resource
 *
 * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
 * @author Evert Pot (http://www.rooftopsolutions.nl/)
 * @license http://sabre.io/license/ Modified BSD License
 */
class LockDiscovery implements XmlSerializable
{
    /**
     * locks.
     *
     * @var LockInfo[]
     */
    public $locks;

/**
     * Hides the {DAV:}lockroot element from the response.
     *
     * It was reported that showing the lockroot in the response can break
     * Office 2000 compatibility.
     *
     * @var bool
     */
    public static $hideLockRoot = false;

/**
     * __construct.
     *
     * @param LockInfo[] $locks
     */
    public function __construct($locks)
    {
        $this->locks = $locks;
    }

/**
     * The serialize method is called during xml writing.
     *
     * It should use the $writer argument to encode this object into XML.
     *
     * Important note: it is not needed to create the parent element. The
     * parent element is already created, and we only have to worry about
     * attributes, child elements and text (if any).
     *
     * Important note 2: If you are writing any new elements, you are also
     * responsible for closing them.
     */
    public function xmlSerialize(Writer $writer)
    {
        foreach ($this->locks as $lock) {
            $writer->startElement('{DAV:}activelock');

$writer->startElement('{DAV:}lockscope');
            if (LockInfo::SHARED === $lock->scope) {
                $writer->writeElement('{DAV:}shared');
            } else {
                $writer->writeElement('{DAV:}exclusive');
            }

$writer->endElement(); // {DAV:}lockscope

$writer->startElement('{DAV:}locktype');
            $writer->writeElement('{DAV:}write');
            $writer->endElement(); // {DAV:}locktype

if (!self::$hideLockRoot) {
                $writer->startElement('{DAV:}lockroot');
                $writer->writeElement('{DAV:}href', $writer->contextUri.$lock->uri);
                $writer->endElement(); // {DAV:}lockroot
            }
            $writer->writeElement('{DAV:}depth', (DAV\Server::DEPTH_INFINITY == $lock->depth ? 'infinity' : $lock->depth));
            $writer->writeElement('{DAV:}timeout', (LockInfo::TIMEOUT_INFINITE === $lock->timeout ? 'Infinite' : 'Second-'.$lock->timeout));

// optional according to https://tools.ietf.org/html/rfc4918#section-6.5
            if (null !== $lock->token && '' !== $lock->token) {
                $writer->startElement('{DAV:}locktoken');
                $writer->writeElement('{DAV:}href', 'opaquelocktoken:'.$lock->token);
                $writer->endElement(); // {DAV:}locktoken
            }

if ($lock->owner) {
                $writer->writeElement('{DAV:}owner', new XmlFragment($lock->owner));
            }
            $writer->endElement(); // {DAV:}activelock
        }
    }
}

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