使用php实现单点登录
1.准备两个虚拟域名
127.0.0.1 www.openpoor.com
127.0.0.1 www.myspace.com
2.在openpoor的根目录下创建以下文件
index.PHP
- [php] view plain copy
- <?php
- session_start();
- ?>
- <!DOCTYPE html>
- <html>
- <head>
- <meta charset="UTF-8"/>
- <title>sync login</title>
- </head>
- <body>
- <?php if(empty($_SESSION['username'])):?>
- hello,游客;请先<a href="login.php">登录</a><a href="http://www.myspace.com/index.php">进入空间</a>
- <?php else: ?>
- hello,<?php echo $_SESSION['username']; ?>;<a href="http://www.myspace.com/index.php">进入空间</a>
- <?php endif; ?>
- <a href="http://www.openpoor.com/index.php">home</a>
- </body>
- </html>
- <?php
- session_start();
- if(!empty($_POST['username'])){
- require '../Des.php';
- $_SESSION['username'] = $_POST['username'];
- $redirect = 'http://www.openpoor.com/index.php';
- header('Location:http://www.openpoor.com/sync.php?redirect='.urlencode($redirect).'&code='.Des::encrypt($_POST['username'],'openpoor'));exit;
- }
- ?>
- <!DOCTYPE html>
- <html>
- <head>
- <meta charset="UTF-8"/>
- <title>sync login</title>
- </head>
- <body>
- <form action="" method="post">
- <input type="text" name="username" placeholder="用户名"/>
- <input type="text" name="password" placeholder="密码"/>
- <input type="submit" value="登录"/>
- </form>
- </body>
- </html>
- <?php
- $redirect = empty($_GET['redirect']) ? 'www.openpoor.com' : $_GET['redirect'];
- if(empty($_GET['code'])){
- header('Loaction:http://'.urldecode($redirect));
- exit;
- }
- $apps = array(
- 'www.myspace.com/slogin.php'
- );
- ?>
- <!DOCTYPE html>
- <html>
- <head>
- <meta charset="UTF-8"/>
- <?php foreach($apps as $v): ?>
- <script type="text/javascript" src="http://<?php echo $v.'?code='.$_GET['code'] ?>"></script>
- <?php endforeach; ?>
- <title>passport</title>
- </head>
- <body>
- <script type="text/javascript">
- window.onload=function(){
- location.replace('<?php echo $redirect; ?>');
- }
- </script>
- </body>
- </html>
slogin文件 完成session的设置
- <?php
- session_start();
- header('Content-Type:text/javascript; charset=utf-8');
- if(!empty($_GET['code'])){
- require '../Des.php';
- $username = Des::decrypt($_GET['code'],'openpoor');
- if(!empty($username)){
- header('P3P: CP="CURa ADMa DEVa PSAo PSDo OUR BUS UNI PUR INT DEM STA PRE COM NAV OTC NOI DSP COR"');
- $_SESSION['username'] = $username;
- }
- }
- ?>
- <?php
- session_start();
- if(!empty($_SESSION['username']))
- {
- echo "欢迎来到".$_SESSION['username']."的空间";
- }else{
- echo "请先登录";
- }
- ?>
- <?php
- /**
- *@see Yii CSecurityManager;
- */
- class Des{
- public static function encrypt($data,$key){
- $module=mcrypt_module_open('des','', MCRYPT_MODE_CBC,'');
- $key=substr(md5($key),0,mcrypt_enc_get_key_size($module));
- srand();
- $iv=mcrypt_create_iv(mcrypt_enc_get_iv_size($module), MCRYPT_RAND);
- mcrypt_generic_init($module,$key,$iv);
- $encrypted=$iv.mcrypt_generic($module,$data);
- mcrypt_generic_deinit($module);
- mcrypt_module_close($module);
- return md5($data).'_'.base64_encode($encrypted);
- }
- public static function decrypt($data,$key){
- $_data = explode('_',$data,2);
- if(count($_data)<2){
- return false;
- }
- $data = base64_decode($_data[1]);
- $module=mcrypt_module_open('des','', MCRYPT_MODE_CBC,'');
- $key=substr(md5($key),0,mcrypt_enc_get_key_size($module));
- $ivSize=mcrypt_enc_get_iv_size($module);
- $iv=substr($data,0,$ivSize);
- mcrypt_generic_init($module,$key,$iv);
- $decrypted=mdecrypt_generic($module,substr($data,$ivSize,strlen($data)));
- mcrypt_generic_deinit($module);
- mcrypt_module_close($module);
- $decrypted = rtrim($decrypted,"\0");
- if($_data[0]!=md5($decrypted)){
- return false;
- }
- return $decrypted;
- }
- }
- ?>
当在openpoor登录后将session信息传到其他域名下的文件下进行处理,以script标签包含的形式进行运行。
5.此时访问www.openpoor.com和www.myspace.com都是未登录状态
登录后两个域名下都是登录状态
到此我们实现了一个简单的单点登录。