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398 lines
11 KiB
PHP
398 lines
11 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_Provider
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* @copyright Copyright (c) 2005-2009 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 16212 2009-06-21 19:24:49Z thomas $
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*/
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/**
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* @see Zend_OpenId_Provider_Storage
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*/
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require_once "Zend/OpenId/Provider/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_Provider
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* @copyright Copyright (c) 2005-2009 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_Provider_Storage_File extends Zend_OpenId_Provider_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 ($dir === null) {
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$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 = $tmp . '/openid/provider';
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}
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$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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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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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.'/user.lock', 'w+')) === null) {
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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 session identified by $handle
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*
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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 string $expires expiration UNIX time
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* @return bool
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*/
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public function addAssociation($handle, $macFunc, $secret, $expires)
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{
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$name = $this->_dir . '/assoc_' . md5($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($name, 'w+');
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if ($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($handle, $macFunc, $secret, $expires));
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fwrite($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 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 $handle assiciation handle
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* @param string &$macFunc HMAC function (sha1 or sha256)
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* @param string &$secret shared secret
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* @param string &$expires expiration UNIX time
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* @return bool
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*/
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public function getAssociation($handle, &$macFunc, &$secret, &$expires)
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{
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$name = $this->_dir . '/assoc_' . md5($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($name, 'r');
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if ($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($data)) {
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list($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($f);
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@unlink($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 information about association identified by $handle
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*
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* @param string $handle assiciation handle
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* @return bool
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*/
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public function delAssociation($handle)
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{
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$name = $this->_dir . '/assoc_' . md5($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($lock);
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return false;
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}
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@unlink($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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* Register new user with given $id and $password
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* Returns true in case of success and false if user with given $id already
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* exists
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*
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* @param string $id user identity URL
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* @param string $password encoded user password
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* @return bool
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*/
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public function addUser($id, $password)
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{
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$name = $this->_dir . '/user_' . md5($id);
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$lock = @fopen($this->_dir . '/user.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($lock);
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return false;
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}
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$data = serialize(array($id, $password, array()));
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fwrite($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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* Returns true if user with given $id exists and false otherwise
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*
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* @param string $id user identity URL
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* @return bool
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*/
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public function hasUser($id)
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{
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$name = $this->_dir . '/user_' . md5($id);
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$lock = @fopen($this->_dir . '/user.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_SH)) {
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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, $storedPassword, $trusted) = unserialize($data);
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if ($id === $storedId) {
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$ret = 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 $ret;
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}
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/**
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* Verify if user with given $id exists and has specified $password
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*
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* @param string $id user identity URL
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* @param string $password user password
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* @return bool
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*/
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public function checkUser($id, $password)
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{
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$name = $this->_dir . '/user_' . md5($id);
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$lock = @fopen($this->_dir . '/user.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_SH)) {
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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, $storedPassword, $trusted) = unserialize($data);
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if ($id === $storedId && $password === $storedPassword) {
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$ret = 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 $ret;
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}
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/**
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* Removes information abou specified user
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*
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* @param string $id user identity URL
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* @return bool
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*/
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public function delUser($id)
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{
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$name = $this->_dir . '/user_' . md5($id);
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$lock = @fopen($this->_dir . '/user.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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* Returns array of all trusted/untrusted sites for given user identified
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* by $id
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*
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* @param string $id user identity URL
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* @return array
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*/
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public function getTrustedSites($id)
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{
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$name = $this->_dir . '/user_' . md5($id);
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$lock = @fopen($this->_dir . '/user.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_SH)) {
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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, $storedPassword, $trusted) = unserialize($data);
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if ($id === $storedId) {
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$ret = $trusted;
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}
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}
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fclose($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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* Stores information about trusted/untrusted site for given user
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*
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* @param string $id user identity URL
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* @param string $site site URL
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* @param mixed $trusted trust data from extension or just a boolean value
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* @return bool
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*/
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public function addSite($id, $site, $trusted)
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{
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$name = $this->_dir . '/user_' . md5($id);
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$lock = @fopen($this->_dir . '/user.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, $storedPassword, $sites) = unserialize($data);
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if ($id === $storedId) {
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if ($trusted === null) {
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unset($sites[$site]);
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} else {
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$sites[$site] = $trusted;
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}
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rewind($f);
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ftruncate($f, 0);
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$data = serialize(array($id, $storedPassword, $sites));
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fwrite($f, $data);
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$ret = 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 $ret;
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}
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}
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