php实现SSO单点登录实例
Posted zqifa
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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://www.c.com/sso_login.php‘; //你SSO所在的域名 5 $callback_address = ‘http://‘ . $_SERVER[‘HTTP_HOST‘] 6 . str_replace(‘index.php‘, ‘‘, $_SERVER[‘SCRIPT_NAME‘]) 7 . ‘callback.php‘; //callback地址用于回调设置cookie 8 9 if (isset($_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 $callback_address ?>" frameborder="0" width="0" 16 height="0"></iframe> 17 18 <?php 19 //callback.php 回调页面用来设置跨域COOKIE 20 header(‘Content-Type:text/html; charset=utf-8‘); 21 if (empty($_GET)) { 22 exit(‘您还未登录‘); 23 } else { 24 foreach ($_GET as $key => $val) { 25 setcookie($key, $val, 0, ‘‘); 26 } 27 header("location:index.php"); 28 } 29 ?> 30 31 <?php 32 //connect.php 用来检测登录状态的页面,内嵌在页面的iframe中 33 header(‘Content-Type:text/html; charset=utf-8‘); 34 if (isset($_COOKIE[‘sign‘])) { 35 $callback = urldecode($_GET[‘callback‘]); 36 unset($_GET[‘callback‘]); 37 $query = http_build_query($_COOKIE); 38 $callback = $callback . "?{$query}"; 39 } else { 40 exit; 41 } 42 ?> 43 <html> 44 <script type="text/javascript">top.location.href = "<?php echo $callback; ?>";</script> 45 </html> 46 47 48 <?php 49 50 //login.php SSO登录页面 51 header(‘Content-Type:text/html; charset=utf-8‘); 52 if (isset($_GET[‘logout‘])) { 53 setcookie(‘sign‘, ‘‘, -300); 54 unset($_GET[‘logout‘]); 55 header(‘location:index.php‘); 56 } 57 58 if (isset($_POST[‘username‘]) && isset($_POST[‘password‘])) { 59 setcookie(‘sign‘, $_POST[‘username‘], 0, ‘‘); 60 header("location:" . $_POST[‘callback‘] . "?sign={$_POST[‘username‘]}"); 61 } 62 63 if (empty($_COOKIE[‘sign‘])) { 64 ?> 65 66 <form method="post"> 67 <p>用户名:<input type="text" name="username"/></p> 68 <p>密 码:<input type="password" name="password"/></p> 69 <input type="hidden" name="callback" value="<?php echo $_GET[‘callback‘]; ?>"/> 70 <input type="submit" value="登录"/> 71 </form> 72 73 74 <?php 75 } else { 76 $query = http_build_query($_COOKIE); 77 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>"; 78 }
done!
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