<转>[原创程序] PHP不到100行代码实现SSO单点登录

1、点击登录跳转到SSO登录页面并带上当前应用的callback地址
2、登录成功后生成COOKIE并将COOKIE传给callback地址
3、callback地址接收SSO的COOKIE并设置在当前域下再跳回到应用1即完成登录
4、再在应用程序需要登录的地方嵌入一个iframe用来实时检测登录状态

  1. <?php
  2. //index.php 应用程序页面
  3. header('Content-Type:text/html; charset=utf-8');
  4. $sso_address = 'http://2spaoku.com/sso/login.php'; //你SSO所在的域名
  5. $callback_address = 'http://'.$_SERVER['HTTP_HOST']
  6.                     .str_replace('index.php','',$_SERVER['SCRIPT_NAME'])
  7.                     .'callback.php'; //callback地址用于回调设置cookie

  9. if(isset($_COOKIE['sign'])){
  10.     exit("欢迎您{$_COOKIE['sign']} <a href=\"login.php?logout\">退出</a>");
  11. }else{
  12.     echo '您还未登录 <a href="'.$sso_address.'?callback='.$callback_address.'">点此登录</a>';
  13. }
  14. ?>
  15. <iframe src="<?php echo $sso_address ?>?callback=<?php echo $callback_address ?>" frameborder="0"  width="0" height="0"></iframe>
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  1. <?php
  2. //login.php SSO登录页面
  3. header('Content-Type:text/html; charset=utf-8');
  4. if(isset($_GET['logout'])){
  5.     setcookie('sign','',-300);
  6.     unset($_GET['logout']);
  7.     header('location:index.php');
  8. }

  10. if(isset($_POST['username']) && isset($_POST['password'])){
  11.     setcookie('sign',$_POST['username'],0,'');
  12.     header("location:".$_POST['callback']."?sign={$_POST['username']}");
  13. }

  15. if(empty($_COOKIE['sign'])){
  16. ?>

  18. <form method="post">
  19. <p>用户名：<input type="text" name="username" /></p>
  20. <p>密  码：<input type="password" name="password" /></p>
  21. <input type="hidden" name="callback" value="<?php echo $_GET['callback']; ?>" />
  22. <input type="submit" value="登录" />
  23. </form>


  26. <?php
  27. }else{
  28.     $query = http_build_query($_COOKIE);
  29.     echo "系统检测到您已登录 {$_COOKIE['sign']} <a href=\"{$_GET['callback']}?{$query}\">授权</a> <a href=\"?logout\">退出</a>";
  30. }
  31. ?>
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  1. <?php
  2. //callback.php 回调页面用来设置跨域COOKIE
  3. header('Content-Type:text/html; charset=utf-8');
  4. if(empty($_GET)){
  5.     exit('您还未登录');
  6. }else{
  7.     foreach($_GET as $key=>$val){
  8.         setcookie($key,$val,0,'');
  9.     }
  10.     header("location:index.php");
  11. }
  12. ?>
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  1. <?php
  2. //connect.php 用来检测登录状态的页面，内嵌在页面的iframe中
  3. header('Content-Type:text/html; charset=utf-8');
  4. if(isset($_COOKIE['sign'])){
  5.     $callback = urldecode($_GET['callback']);unset($_GET['callback']);
  6.     $query = http_build_query($_COOKIE);
  7.     $callback = $callback."?{$query}";
  8. }else{
  9.     exit;
  10. }
  11. ?>
  12. <html><script type="text/javascript">top.location.href="<?php echo $callback; ?>";</script></html>
复制代码


演示地址：http://tmkook.com/blog/sso/
源文地址：http://tmkook.com/blog/archives/php-sso

posted on 2015-10-29 21:06  hahahahahai12  阅读(166)  评论(0)    收藏  举报

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