454 lines
14 KiB
PHP
454 lines
14 KiB
PHP
<?php
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/**
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* Zend Framework
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*
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* LICENSE
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*
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* This source file is subject to the new BSD license that is bundled
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* with this package in the file LICENSE.txt.
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* It is also available through the world-wide-web at this URL:
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* http://framework.zend.com/license/new-bsd
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* If you did not receive a copy of the license and are unable to
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* obtain it through the world-wide-web, please send an email
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* to license@zend.com so we can send you a copy immediately.
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*
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* @category Zend
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* @package Zend_OpenId
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* @subpackage Zend_OpenId_Consumer
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* @copyright Copyright (c) 2005-2008 Zend Technologies USA Inc. (http://www.zend.com)
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* @license http://framework.zend.com/license/new-bsd New BSD License
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* @version $Id: File.php 9250 2008-04-18 21:00:13Z darby $
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*/
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/**
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* @see Zend_OpenId_Consumer_Storage
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*/
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require_once "Zend/OpenId/Consumer/Storage.php";
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/**
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* External storage implemmentation using serialized files
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*
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* @category Zend
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* @package Zend_OpenId
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* @subpackage Zend_OpenId_Consumer
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* @copyright Copyright (c) 2005-2008 Zend Technologies USA Inc. (http://www.zend.com)
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* @license http://framework.zend.com/license/new-bsd New BSD License
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*/
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class Zend_OpenId_Consumer_Storage_File extends Zend_OpenId_Consumer_Storage
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{
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/**
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* Directory name to store data files in
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*
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* @var string $_dir
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*/
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private $_dir;
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/**
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* Constructs storage object and creates storage directory
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*
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* @param string $dir directory name to store data files in
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* @throws Zend_OpenId_Exception
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*/
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public function __construct($dir = null)
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{
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if (is_null($dir)) {
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$tmp = getenv('TMP');
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if (empty($tmp)) {
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$tmp = getenv('TEMP');
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if (empty($tmp)) {
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$tmp = "/tmp";
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}
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}
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$user = get_current_user();
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if (is_string($user) && !empty($user)) {
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$tmp .= '/' . $user;
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}
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$dir = $tmp . '/openid/consumer';
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}
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$this->_dir = $dir;
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if (!is_dir($this->_dir)) {
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if (!@mkdir($this->_dir, 0700, 1)) {
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/**
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* @see Zend_OpenId_Exception
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*/
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require_once 'Zend/OpenId/Exception.php';
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throw new Zend_OpenId_Exception(
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'Cannot access storage directory ' . $dir,
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Zend_OpenId_Exception::ERROR_STORAGE);
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}
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}
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if (($f = fopen($this->_dir.'/assoc.lock', 'w+')) === null) {
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/**
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* @see Zend_OpenId_Exception
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*/
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require_once 'Zend/OpenId/Exception.php';
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throw new Zend_OpenId_Exception(
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'Cannot create a lock file in the directory ' . $dir,
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Zend_OpenId_Exception::ERROR_STORAGE);
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}
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fclose($f);
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if (($f = fopen($this->_dir.'/discovery.lock', 'w+')) === null) {
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/**
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* @see Zend_OpenId_Exception
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*/
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require_once 'Zend/OpenId/Exception.php';
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throw new Zend_OpenId_Exception(
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'Cannot create a lock file in the directory ' . $dir,
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Zend_OpenId_Exception::ERROR_STORAGE);
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}
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fclose($f);
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if (($f = fopen($this->_dir.'/nonce.lock', 'w+')) === null) {
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/**
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* @see Zend_OpenId_Exception
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*/
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require_once 'Zend/OpenId/Exception.php';
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throw new Zend_OpenId_Exception(
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'Cannot create a lock file in the directory ' . $dir,
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Zend_OpenId_Exception::ERROR_STORAGE);
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}
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fclose($f);
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}
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/**
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* Stores information about association identified by $url/$handle
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*
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* @param string $url OpenID server URL
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* @param string $handle assiciation handle
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* @param string $macFunc HMAC function (sha1 or sha256)
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* @param string $secret shared secret
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* @param long $expires expiration UNIX time
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* @return bool
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*/
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public function addAssociation($url, $handle, $macFunc, $secret, $expires)
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{
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$name1 = $this->_dir . '/assoc_url_' . md5($url);
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$name2 = $this->_dir . '/assoc_handle_' . md5($handle);
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$lock = @fopen($this->_dir . '/assoc.lock', 'w+');
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if ($lock === false) {
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return false;
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}
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if (!flock($lock, LOCK_EX)) {
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fclose($lock);
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return false;
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}
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$f = @fopen($name1, 'w+');
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if ($f === false) {
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fclose($lock);
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return false;
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}
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$data = serialize(array($url, $handle, $macFunc, $secret, $expires));
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fwrite($f, $data);
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if (function_exists('symlink')) {
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@unlink($name2);
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symlink($name1, $name2);
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} else {
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$f2 = @fopen($name2, 'w+');
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if ($f2) {
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fwrite($f2, $data);
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fclose($f2);
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}
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}
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fclose($f);
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fclose($lock);
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return true;
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}
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/**
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* Gets information about association identified by $url
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* Returns true if given association found and not expired and false
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* otherwise
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*
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* @param string $url OpenID server URL
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* @param string &$handle assiciation handle
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* @param string &$macFunc HMAC function (sha1 or sha256)
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* @param string &$secret shared secret
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* @param long &$expires expiration UNIX time
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* @return bool
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*/
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public function getAssociation($url, &$handle, &$macFunc, &$secret, &$expires)
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{
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$name1 = $this->_dir . '/assoc_url_' . md5($url);
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$lock = @fopen($this->_dir . '/assoc.lock', 'w+');
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if ($lock === false) {
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return false;
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}
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if (!flock($lock, LOCK_EX)) {
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fclose($lock);
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return false;
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}
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$f = @fopen($name1, 'r');
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if ($f === false) {
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fclose($lock);
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return false;
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}
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$ret = false;
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$data = stream_get_contents($f);
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if (!empty($data)) {
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list($storedUrl, $handle, $macFunc, $secret, $expires) = unserialize($data);
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if ($url === $storedUrl && $expires > time()) {
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$ret = true;
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} else {
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$name2 = $this->_dir . '/assoc_handle_' . md5($handle);
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fclose($f);
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@unlink($name2);
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@unlink($name1);
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fclose($lock);
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return false;
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}
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}
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fclose($f);
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fclose($lock);
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return $ret;
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}
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/**
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* Gets information about association identified by $handle
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* Returns true if given association found and not expired and false
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* otherwise
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*
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* @param string $handle assiciation handle
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* @param string &$url OpenID server URL
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* @param string &$macFunc HMAC function (sha1 or sha256)
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* @param string &$secret shared secret
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* @param long &$expires expiration UNIX time
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* @return bool
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*/
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public function getAssociationByHandle($handle, &$url, &$macFunc, &$secret, &$expires)
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{
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$name2 = $this->_dir . '/assoc_handle_' . md5($handle);
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$lock = @fopen($this->_dir . '/assoc.lock', 'w+');
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if ($lock === false) {
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return false;
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}
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if (!flock($lock, LOCK_EX)) {
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fclose($lock);
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return false;
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}
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$f = @fopen($name2, 'r');
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if ($f === false) {
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fclose($lock);
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return false;
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}
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$ret = false;
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$data = stream_get_contents($f);
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if (!empty($data)) {
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list($url, $storedHandle, $macFunc, $secret, $expires) = unserialize($data);
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if ($handle === $storedHandle && $expires > time()) {
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$ret = true;
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} else {
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fclose($f);
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@unlink($name2);
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$name1 = $this->_dir . '/assoc_url_' . md5($url);
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@unlink($name1);
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fclose($lock);
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return false;
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}
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}
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fclose($f);
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fclose($lock);
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return $ret;
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}
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/**
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* Deletes association identified by $url
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*
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* @param string $url OpenID server URL
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* @return bool
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*/
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public function delAssociation($url)
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{
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$name1 = $this->_dir . '/assoc_url_' . md5($url);
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$lock = @fopen($this->_dir . '/assoc.lock', 'w+');
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if ($lock === false) {
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return false;
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}
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if (!flock($lock, LOCK_EX)) {
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fclose($lock);
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return false;
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}
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$f = @fopen($name1, 'r');
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if ($f === false) {
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fclose($lock);
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return false;
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}
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$data = stream_get_contents($f);
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if (!empty($data)) {
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list($storedUrl, $handle, $macFunc, $secret, $expires) = unserialize($data);
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if ($url === $storedUrl) {
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$name2 = $this->_dir . '/assoc_handle_' . md5($handle);
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fclose($f);
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@unlink($name2);
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@unlink($name1);
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fclose($lock);
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return true;
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}
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}
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fclose($f);
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fclose($lock);
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return true;
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}
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/**
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* Stores information discovered from identity $id
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*
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* @param string $id identity
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* @param string $realId discovered real identity URL
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* @param string $server discovered OpenID server URL
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* @param float $version discovered OpenID protocol version
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* @param long $expires expiration UNIX time
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* @return bool
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*/
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public function addDiscoveryInfo($id, $realId, $server, $version, $expires)
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{
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$name = $this->_dir . '/discovery_' . md5($id);
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$lock = @fopen($this->_dir . '/discovery.lock', 'w+');
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if ($lock === false) {
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return false;
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}
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if (!flock($lock, LOCK_EX)) {
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fclose($lock);
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return false;
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}
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$f = @fopen($name, 'w+');
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if ($f === false) {
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fclose($lock);
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return false;
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}
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$data = serialize(array($id, $realId, $server, $version, $expires));
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fwrite($f, $data);
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fclose($f);
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fclose($lock);
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return true;
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}
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/**
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* Gets information discovered from identity $id
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* Returns true if such information exists and false otherwise
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*
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* @param string $id identity
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* @param string &$realId discovered real identity URL
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* @param string &$server discovered OpenID server URL
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* @param float &$version discovered OpenID protocol version
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* @param long &$expires expiration UNIX time
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* @return bool
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*/
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public function getDiscoveryInfo($id, &$realId, &$server, &$version, &$expires)
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{
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$name = $this->_dir . '/discovery_' . md5($id);
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$lock = @fopen($this->_dir . '/discovery.lock', 'w+');
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if ($lock === false) {
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return false;
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}
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if (!flock($lock, LOCK_EX)) {
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fclose($lock);
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return false;
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}
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$f = @fopen($name, 'r');
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if ($f === false) {
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fclose($lock);
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return false;
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}
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$ret = false;
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$data = stream_get_contents($f);
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if (!empty($data)) {
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list($storedId, $realId, $server, $version, $expires) = unserialize($data);
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if ($id === $storedId && $expires > time()) {
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$ret = true;
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} else {
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fclose($f);
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@unlink($name);
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fclose($lock);
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return false;
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}
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}
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fclose($f);
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fclose($lock);
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return $ret;
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}
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/**
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* Removes cached information discovered from identity $id
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*
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* @param string $id identity
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* @return bool
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*/
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public function delDiscoveryInfo($id)
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{
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$name = $this->_dir . '/discovery_' . md5($id);
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$lock = @fopen($this->_dir . '/discovery.lock', 'w+');
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if ($lock === false) {
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return false;
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}
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if (!flock($lock, LOCK_EX)) {
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fclose($lock);
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return false;
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}
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@unlink($name);
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fclose($lock);
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return true;
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}
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/**
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* The function checks the uniqueness of openid.response_nonce
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*
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* @param string $provider openid.openid_op_endpoint field from authentication response
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* @param string $nonce openid.response_nonce field from authentication response
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* @return bool
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*/
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public function isUniqueNonce($provider, $nonce)
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{
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$name = $this->_dir . '/nonce_' . md5($provider.';'.$nonce);
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$lock = @fopen($this->_dir . '/nonce.lock', 'w+');
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if ($lock === false) {
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return false;
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}
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if (!flock($lock, LOCK_EX)) {
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fclose($lock);
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return false;
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}
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$f = @fopen($name, 'x');
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if ($f === false) {
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fclose($lock);
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return false;
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}
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fwrite($f, $provider.';'.$nonce);
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fclose($f);
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fclose($lock);
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return true;
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}
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/**
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* Removes data from the uniqueness database that is older then given date
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*
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* @param mixed $date date of expired data
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*/
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public function purgeNonces($date=null)
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{
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$lock = @fopen($this->_dir . '/nonce.lock', 'w+');
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if ($lock !== false) {
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flock($lock, LOCK_EX);
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}
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if (!is_int($date) && !is_string($date)) {
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foreach (glob($this->_dir . '/nonce_*') as $name) {
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@unlink($name);
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}
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} else {
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if (is_string($date)) {
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$time = time($date);
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} else {
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$time = $date;
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}
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foreach (glob($this->_dir . '/nonce_*') as $name) {
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if (filemtime($name) < $time) {
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@unlink($name);
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}
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}
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}
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if ($lock !== false) {
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fclose($lock);
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}
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}
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}
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