<?php namespace Sabre\DAV\Auth\Backend; use Sabre\DAV; /** * This is an authentication backend that uses a file to manage passwords. * * The backend file must conform to Apache's htdigest format * * @copyright Copyright (C) fruux GmbH (https://fruux.com/) * @author Evert Pot (http://evertpot.com/) * @license http://sabre.io/license/ Modified BSD License */ class File extends AbstractDigest { /** * List of users * * @var array */ protected $users = []; /** * Creates the backend object. * * If the filename argument is passed in, it will parse out the specified file first. * * @param string|null $filename */ function __construct($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 $filename * @return void */ function loadFile($filename) { foreach (file($filename, FILE_IGNORE_NEW_LINES) as $line) { if (substr_count($line, ":") !== 2) throw new 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 DAV\Exception('Malformed htdigest file. Invalid md5 hash'); $this->users[$realm . ':' . $username] = $A1; } } /** * Returns a users' information * * @param string $realm * @param string $username * @return string */ function getDigestHash($realm, $username) { return isset($this->users[$realm . ':' . $username]) ? $this->users[$realm . ':' . $username] : false; } }