friendica-addons/dav/SabreDAV/lib/Sabre/DAV/Auth/Backend/File.php
2012-06-03 18:19:28 +00:00

75 lines
1.9 KiB
PHP

<?php
/**
* This is an authentication backend that uses a file to manage passwords.
*
* The backend file must conform to Apache's htdigest format
*
* @package Sabre
* @subpackage DAV
* @copyright Copyright (C) 2007-2012 Rooftop Solutions. All rights reserved.
* @author Evert Pot (http://www.rooftopsolutions.nl/)
* @license http://code.google.com/p/sabredav/wiki/License Modified BSD License
*/
class Sabre_DAV_Auth_Backend_File extends Sabre_DAV_Auth_Backend_AbstractDigest {
/**
* List of users
*
* @var array
*/
protected $users = array();
/**
* Creates the backend object.
*
* If the filename argument is passed in, it will parse out the specified file fist.
*
* @param string|null $filename
*/
public function __construct($filename=null) {
if (!is_null($filename))
$this->loadFile($filename);
}
/**
* Loads an htdigest-formatted file. This method can be called multiple times if
* more than 1 file is used.
*
* @param string $filename
* @return void
*/
public function loadFile($filename) {
foreach(file($filename,FILE_IGNORE_NEW_LINES) as $line) {
if (substr_count($line, ":") !== 2)
throw new Sabre_DAV_Exception('Malformed htdigest file. Every line should contain 2 colons');
list($username,$realm,$A1) = explode(':',$line);
if (!preg_match('/^[a-zA-Z0-9]{32}$/', $A1))
throw new Sabre_DAV_Exception('Malformed htdigest file. Invalid md5 hash');
$this->users[$realm . ':' . $username] = $A1;
}
}
/**
* Returns a users' information
*
* @param string $realm
* @param string $username
* @return string
*/
public function getDigestHash($realm, $username) {
return isset($this->users[$realm . ':' . $username])?$this->users[$realm . ':' . $username]:false;
}
}