php的sso單點登陸實現方法

時間 2019-11-11

標籤 php sso 單點登陸實現方法欄目 PHP 简体版

原文原文鏈接

本文實例講述了php的sso單點登陸實現方法。分享給你們供你們參考。具體分析以下：javascript

這裏詳細講到了幾點：
一、點擊登陸跳轉到SSO登陸頁面並帶上當前應用的callback地址
二、登陸成功後生成COOKIE並將COOKIE傳給callback地址
三、callback地址接收SSO的COOKIE並設置在當前域下再跳回到應用1即完成登陸
四、再在應用程序須要登陸的地方嵌入一個iframe用來實時檢測登陸狀態,代碼以下:
index.php 應用程序頁面:php

複製代碼代碼以下:html

<?php
header('Content-Type:text/html; charset=utf-8');
$sso_address = 'http://XXXX.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地址用於回調設置cookie

if(isset($_COOKIE['sign'])){
    exit("歡迎您{$_COOKIE['sign']} <a href="login.php?logout">退出</a>");
}else{
    echo '您還未登陸 <a href="'.$sso_address.'?callback='.$callback_address.'">點此登陸</a>';
}
?>
<iframe src="<?php echo $sso_address ?>?callback=<?php echo $callback_address ?>" frameborder="0" width="0" height="0"></iframe>java

複製代碼代碼以下:cookie

<?php
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="登陸" />
</form>

<?php
}else{
    $query = http_build_query($_COOKIE);
    echo "系統檢測到您已登陸 {$_COOKIE['sign']} <a href="{$_GET['callback']}?{$query}">受權</a> <a href="?logout">退出</a>";
}
?>post

callback.php 回調頁面用來設置跨域COOKIE：ui

複製代碼代碼以下:url

<?php
header('Content-Type:text/html; charset=utf-8');
if(emptyempty($_GET)){
    exit('您還未登陸');
}else{
    foreach($_GET as $key=>$val){
        setcookie($key,$val,0,'');
    }
    header("location:index.php");
}
?>code

connect.php 用來檢測登陸狀態的頁面，內嵌在頁面的iframe中：

複製代碼代碼以下:

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