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<?php
namespace Sabre\DAV;
/**
* File class
*
* This is a helper class, that should aid in getting file classes setup.
* Most of its methods are implemented, and throw permission denied exceptions
*
* @copyright Copyright (C) fruux GmbH (https://fruux.com/)
* @author Evert Pot (http://evertpot.com/)
* @license http://sabre.io/license/ Modified BSD License
*/
abstract class File extends Node implements IFile {
/**
* Updates the data
*
* data is a readable stream resource.
*
* @param resource $data
* @return void
*/
function put($data) {
throw new Exception\Forbidden('Permission denied to change data');
}
/**
* Returns the data
*
* This method may either return a string or a readable stream resource
*
* @return mixed
*/
function get() {
throw new Exception\Forbidden('Permission denied to read this file');
}
/**
* Returns the size of the file, in bytes.
*
* @return int
*/
function getSize() {
return 0;
}
/**
* Returns the ETag for a file
*
* An ETag is a unique identifier representing the current version of the file. If the file changes, the ETag MUST change.
* The ETag is an arbitrary string, but MUST be surrounded by double-quotes.
*
* Return null if the ETag can not effectively be determined
*
* @return string|null
*/
function getETag() {
return null;
}
/**
* Returns the mime-type for a file
*
* If null is returned, we'll assume application/octet-stream
*
* @return string|null
*/
function getContentType() {
return null;
}
}
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