<?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; } }