mirror of
https://git.friendi.ca/friendica/friendica-addons.git
synced 2024-11-07 21:22:54 +00:00
98 lines
2.9 KiB
PHP
98 lines
2.9 KiB
PHP
<?php
|
|
|
|
/**
|
|
* HTTP Digest authentication backend class
|
|
*
|
|
* This class can be used by authentication objects wishing to use HTTP Digest
|
|
* Most of the digest logic is handled, implementors just need to worry about
|
|
* the getDigestHash method
|
|
*
|
|
* @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
|
|
*/
|
|
abstract class Sabre_DAV_Auth_Backend_AbstractDigest implements Sabre_DAV_Auth_IBackend {
|
|
|
|
/**
|
|
* This variable holds the currently logged in username.
|
|
*
|
|
* @var array|null
|
|
*/
|
|
protected $currentUser;
|
|
|
|
/**
|
|
* Returns a users digest hash based on the username and realm.
|
|
*
|
|
* If the user was not known, null must be returned.
|
|
*
|
|
* @param string $realm
|
|
* @param string $username
|
|
* @return string|null
|
|
*/
|
|
abstract public function getDigestHash($realm, $username);
|
|
|
|
/**
|
|
* Authenticates the user based on the current request.
|
|
*
|
|
* If authentication is successful, true must be returned.
|
|
* If authentication fails, an exception must be thrown.
|
|
*
|
|
* @param Sabre_DAV_Server $server
|
|
* @param string $realm
|
|
* @throws Sabre_DAV_Exception_NotAuthenticated
|
|
* @return bool
|
|
*/
|
|
public function authenticate(Sabre_DAV_Server $server, $realm) {
|
|
|
|
$digest = new Sabre_HTTP_DigestAuth();
|
|
|
|
// Hooking up request and response objects
|
|
$digest->setHTTPRequest($server->httpRequest);
|
|
$digest->setHTTPResponse($server->httpResponse);
|
|
|
|
$digest->setRealm($realm);
|
|
$digest->init();
|
|
|
|
$username = $digest->getUsername();
|
|
|
|
// No username was given
|
|
if (!$username) {
|
|
$digest->requireLogin();
|
|
throw new Sabre_DAV_Exception_NotAuthenticated('No digest authentication headers were found');
|
|
}
|
|
|
|
$hash = $this->getDigestHash($realm, $username);
|
|
// If this was false, the user account didn't exist
|
|
if ($hash===false || is_null($hash)) {
|
|
$digest->requireLogin();
|
|
throw new Sabre_DAV_Exception_NotAuthenticated('The supplied username was not on file');
|
|
}
|
|
if (!is_string($hash)) {
|
|
throw new Sabre_DAV_Exception('The returned value from getDigestHash must be a string or null');
|
|
}
|
|
|
|
// If this was false, the password or part of the hash was incorrect.
|
|
if (!$digest->validateA1($hash)) {
|
|
$digest->requireLogin();
|
|
throw new Sabre_DAV_Exception_NotAuthenticated('Incorrect username');
|
|
}
|
|
|
|
$this->currentUser = $username;
|
|
return true;
|
|
|
|
}
|
|
|
|
/**
|
|
* Returns the currently logged in username.
|
|
*
|
|
* @return string|null
|
|
*/
|
|
public function getCurrentUser() {
|
|
|
|
return $this->currentUser;
|
|
|
|
}
|
|
|
|
}
|