PreconditionFailed.php
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PreconditionFailed.php
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	<?php

	namespace Sabre\DAV\Exception;

	use Sabre\DAV;

	/**
	* PreconditionFailed
	*
	* This exception is normally thrown when a client submitted a conditional request,
	* like for example an If, If-None-Match or If-Match header, which caused the HTTP
	* request to not execute (the condition of the header failed)
	*
	* @copyright Copyright (C) 2007-2015 fruux GmbH (https://fruux.com/).
	* @author Evert Pot (http://evertpot.com/)
	* @license http://sabre.io/license/ Modified BSD License
	*/
	class PreconditionFailed extends DAV\Exception {

	/**
	* When this exception is thrown, the header-name might be set.
	*
	* This allows the exception-catching code to determine which HTTP header
	* caused the exception.
	*
	* @var string
	*/
	public $header = null;

	/**
	* Create the exception
	*
	* @param string $message
	* @param string $header
	*/
	function __construct($message, $header = null) {

	parent::__construct($message);
	$this->header = $header;

	}

	/**
	* Returns the HTTP statuscode for this exception
	*
	* @return int
	*/
	function getHTTPCode() {

	return 412;

	}

	/**
	* This method allows the exception to include additional information into the WebDAV error response
	*
	* @param DAV\Server $server
	* @param \DOMElement $errorNode
	* @return void
	*/
	function serialize(DAV\Server $server, \DOMElement $errorNode) {

	if ($this->header) {
	$prop = $errorNode->ownerDocument->createElement('s:header');
	$prop->nodeValue = $this->header;
	$errorNode->appendChild($prop);
	}

	}

	}