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<?php

declare(strict_types=1);

namespace Sabre\DAV\Exception;

use Sabre\DAV;

/**
 * Locked.
 *
 * The 423 is thrown when a client tried to access a resource that was locked, without supplying a valid lock token
 *
 * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
 * @author Evert Pot (http://evertpot.com/)
 * @license http://sabre.io/license/ Modified BSD License
 */
class Locked extends DAV\Exception
{
    /**
     * Lock information.
     *
     * @var \Sabre\DAV\Locks\LockInfo
     */
    protected $lock;

/**
     * Creates the exception.
     *
     * A LockInfo object should be passed if the user should be informed
     * which lock actually has the file locked.
     *
     * @param DAV\Locks\LockInfo $lock
     */
    public function __construct(DAV\Locks\LockInfo $lock = null)
    {
        parent::__construct();

$this->lock = $lock;
    }

/**
     * Returns the HTTP statuscode for this exception.
     *
     * @return int
     */
    public function getHTTPCode()
    {
        return 423;
    }

/**
     * This method allows the exception to include additional information into the WebDAV error response.
     */
    public function serialize(DAV\Server $server, \DOMElement $errorNode)
    {
        if ($this->lock) {
            $error = $errorNode->ownerDocument->createElementNS('DAV:', 'd:lock-token-submitted');
            $errorNode->appendChild($error);

$href = $errorNode->ownerDocument->createElementNS('DAV:', 'd:href');
            $href->appendChild($errorNode->ownerDocument->createTextNode($this->lock->uri));
            $error->appendChild(
                $href
            );
        }
    }
}