php sso單點登錄實現代碼

2024-05-04 21:48:45

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下面詳細講到了幾點.1、點擊登錄跳轉到SSO登錄頁面并帶上當前應用的callback地址 2、登錄成功后生成COOKIE并將COOKIE傳給callback地址 3、callback地址接收SSO的COOKIE并設置在當前域下再跳回到應用1即完成登錄 4、再在應用程序需要登錄的地方嵌入一個iframe用來實時檢測登錄狀態,代碼如下:

<?php

//index.php 應用程序頁面

header('Content-Type:text/html; charset=utf-8');

$sso_address = 'http://2spaoku.com/sso/login.php'; //你SSO所在的域名

$callback_address = 'http://'.$_SERVER['HTTP_HOST']

                    .str_replace('index.php','',$_SERVER['SCRIPT_NAME'])

                    .'callback.php'; //callback地址用于回調設置cookie

if(isset($_COOKIE['sign'])){

    exit("歡迎您{$_COOKIE['sign']} <a href="login.php?logout">退出</a>");

}else{

    echo '您還未登錄 <a href="'.$sso_address.'?callback='.$callback_address.'">點此登錄</a>';

}

?>

<iframe src="<?php echo $sso_address ?>?callback=<?php echo $callback_address ?>" frameborder="0"  width="0" height="0"></iframe>

<?php

//login.php SSO登錄頁面

header('Content-Type:text/html; charset=utf-8');

if(isset($_GET['logout'])){

    setcookie('sign','',-300);

    unset($_GET['logout']);

    header('location:index.php');

}

if(isset($_POST['username']) && isset($_POST['password'])){

    setcookie('sign',$_POST['username'],0,'');

    header("location:".$_POST['callback']."?sign={$_POST['username']}");

}

if(emptyempty($_COOKIE['sign'])){

?>

<form method="post">

<p>用戶名：<input type="text" name="username" /></p>

<p>密  碼：<input type="password" name="password" /></p>

<input type="hidden" name="callback" value="<?php echo $_GET['callback']; ?>" />

<input type="submit" value="登錄" />

</form>

<?php

}else{

    $query = http_build_query($_COOKIE);

    echo "系統檢測到您已登錄 {$_COOKIE['sign']} <a href="{$_GET['callback']}?{$query}">授權</a> <a href="?logout">退出</a>";

}

?>

<?php

//callback.php 回調頁面用來設置跨域COOKIE

header('Content-Type:text/html; charset=utf-8');

if(emptyempty($_GET)){

    exit('您還未登錄');

}else{

    foreach($_GET as $key=>$val){

        setcookie($key,$val,0,'');

    }

    header("location:index.php");

}

?>

<?php

//connect.php 用來檢測登錄狀態的頁面，內嵌在頁面的iframe中

header('Content-Type:text/html; charset=utf-8');

if(isset($_COOKIE['sign'])){

    $callback = urldecode($_GET['callback']);unset($_GET['callback']);

    $query = http_build_query($_COOKIE);

    $callback = $callback."?{$query}";

}else{ //開源代碼Vevb.com

    exit;

}

?>

<html><script type="text/javascript">top.location.href="<?php echo $callback; ?>";</script></html>