php sso详解
sso有三种模式:①跨子域单点登陆②完全跨单点域登陆③站群共享身份认证
第一种模式很简单,只需要将cookie的域设置成多个应用的根域即可
第二种方式,也很简单,就是将所以应用的认证地址更换成同一个认证地址,每次查看是否在认证中心登陆,如果登陆了,给调用应用发放一个加密令牌即可
第三种跨域,就是来回跳转来回验证token略有麻烦
配置目录结构
在服务器根目录下,新建三个项目目录:
|–/网站根目录/
|–|–/oa/
|–|–/bbs/
|–|–/blog/
在根目录下新建functions.php脚本文件,具体内容如下:
<?php
/**
* 获取登陆token
* @param string $url 获取token的地址
* 2017-01-03t13:08:43+0800
*/
function gettoken($url)
{
$bool = islogin();
if ($bool) {
// 如果登陆了跳转到本站首页
header('location: index.php');
exit();
}
// 否则没有登陆,去另一个站点看是否登陆
header('location: '.$url);
}
// 校验令牌是否正确
function yztoken($domain)
{
$url = isset($_get['url']) ? $_get['url'] : '';
$username = isset($_get['username']) ? $_get['username'] : '';
$token = isset($_get['token']) ? $_get['token'] : '';
if (!empty($username) && !empty($token)) {
$salt = 'taoip';
$_token = md5($salt.$username);
// 校验第三方站点过来时的token是否正确
if ($_token == $token) {
// 设置跳转过来的网站的cookie
setcook($username, $_token, $domain);
header('location: index.php');
}
}
}
// 设置cookie
function setcook($username, $_password, $domain)
{
// 校验成功,开始登陆
setcookie('username', $username, time()+3600, '/', $domain);
setcookie('token', $_password, time()+3600, '/', $domain);
header('location: index.php');
}
// 判断是否登陆
function islogin()
{
$username = isset($_cookie['username']) ? $_cookie['username'] : '';
$token = isset($_cookie['token']) ? $_cookie['token'] : '';
$salt = 'taoip';
$_token = md5($salt.$username);
if ($token == $_token) {
return true;
} else {
return false;
}
}
?>
在oa项目目录下,新建index.php和login.php两个脚本文件
编辑index.php文件
<?php
// oa站点
// (1)开启session会话
session_name('taoip');
session_start();
// (2)获取用户名和token进行校验
$username = isset($_cookie['username']) ? $_cookie['username'] : '';
$token = isset($_cookie['token']) ? $_cookie['token'] : '';
$salt = 'taoip';
$_token = md5($salt.$username);
if ($token != $_token) {
header('location: login.php');
exit();
}
echo "欢迎{$username}用户,访问oa站点";
?>
编辑login.php文件
<?php
// oa站点登陆系统
require '../functions.php';
// (2)验证
yztoken('taoip.cn');
// (1)判断是否登陆,登陆则跳转首页,未登录则去其他站点获取token
$url = isset($_get['url']) ? $_get['url'] : '';
if (empty($url)) {
gettoken('http://dengpeng.cc/login.php?url=http://oa.taoip.cn/login.php');
}
// (1)判断用户是否登陆
$bool = islogin();
$url = isset($_get['url']) ? $_get['url'] : '';
if ($bool) {
if (empty($url)) {
header('location: index.php');
} else {
$username = isset($_cookie['username']) ? $_cookie['username'] : '';
$token = isset($_cookie['token']) ? $_cookie['token'] : '';
$lurl = $url.'?username='.$username.'&token='.$token;
header('location: '.$lurl);
}
}
if (!empty($_post)) {
$username = isset($_post['username']) ? $_post['username'] : '';
$password = isset($_post['password']) ? $_post['password'] : '';
// 从库中查询用户密码
@$link = mysql_connect('localhost', 'root', '');
mysql_query('use sso', $link);
mysql_query('set names utf8', $link);
$sql = "select * from users where username = '".$username."'";
$user = mysql_fetch_assoc(mysql_query($sql, $link));
// 校验
$salt = 'taoip';
$_password = md5($salt.$username);
// var_dump($user['password'] == $_password);
// print_r($user);exit();
if ($user['password'] == $_password) {
// 校验成功,开始登陆
setcookie('username', $username, time()+3600, '/', 'taoip.cn');
setcookie('token', $_password, time()+3600, '/', 'taoip.cn');
// 如果url没有值重定向到首页,否则重定向到url页面
if (empty($url)) {
header('location: index.php');
} else {
header('location: '.$lurl);
}
}
}
?>
<!doctype html>
<html>
<head>
<meta charset="utf-8">
<meta name="generator" content="sublime text 3114">
<meta name="author" content="3@dengpeng.cc">
<meta name="keywords" content="">
<meta name="description" content="">
<title>oa站点登陆系统</title>
</head>
<body>
<p>
<h2>oa.taoip.cn站点登陆系统</h2>
<form action="" method="post">
<label for="">用户名</label>
<input type="text" name="username">
<br>
<label for="">密码</label>
<input type="text" name="password">
<hr>
<button type="submit">提交</button>
</form>
</p>
</body>
</html>
在bbs项目目录下,新建index.php和login.php两个脚本文件
编辑index.php文件
<?php
/**
* @author dengpeng <3@dengpeng.cc>
* @since 2017/01/03
* @copyright copyright (c) 2017 zixue.it gpl
* @license http://www.zixue.it/
*/
// bbs站点
// (1)开启session会话
session_name('taoip');
session_start();
// (2)获取用户名和token进行校验
$username = isset($_cookie['username']) ? $_cookie['username'] : '';
$token = isset($_cookie['token']) ? $_cookie['token'] : '';
$salt = 'taoip';
$_token = md5($salt.$username);
if ($token != $_token) {
header('location: login.php');
exit();
}
echo "欢迎{$username}用户,访问bbs站点";
?>
编辑login.php文件
<?php
/**
* @author dengpeng <3@dengpeng.cc>
* @since 2017/01/03
* @copyright copyright (c) 2017 zixue.it gpl
* @license http://www.zixue.it/
*/
// bbs站点登陆系统
require '../functions.php';
// (2)验证
yztoken('taoip.cn');
// (1)判断是否登陆,登陆则跳转首页,未登录则去其他站点获取token
$url = isset($_get['url']) ? $_get['url'] : '';
if (empty($url)) {
gettoken('http://dengpeng.cc/login.php?url=http://bbs.taoip.cn/login.php');
}
// (1)判断用户是否登陆
$bool = islogin();
$url = isset($_get['url']) ? $_get['url'] : '';
if ($bool) {
if (empty($url)) {
header('location: index.php');
} else {
$username = isset($_cookie['username']) ? $_cookie['username'] : '';
$token = isset($_cookie['token']) ? $_cookie['token'] : '';
$lurl = $url.'?username='.$username.'&token='.$token;
header('location: '.$lurl);
}
}
if (!empty($_post)) {
$username = isset($_post['username']) ? $_post['username'] : '';
$password = isset($_post['password']) ? $_post['password'] : '';
// 从库中查询用户密码
@$link = mysql_connect('localhost', 'root', '');
mysql_query('use sso', $link);
mysql_query('set names utf8', $link);
$sql = "select * from users where username = '".$username."'";
$user = mysql_fetch_assoc(mysql_query($sql, $link));
// 校验
$salt = 'taoip';
$_password = md5($salt.$username);
// var_dump($user['password'] == $_password);
// print_r($user);exit();
if ($user['password'] == $_password) {
// 校验成功,开始登陆
setcookie('username', $username, time()+3600, '/', 'taoip.cn');
setcookie('token', $_password, time()+3600, '/', 'taoip.cn');
// 如果url没有值重定向到首页,否则重定向到url页面
if (empty($url)) {
header('location: index.php');
} else {
header('location: '.$lurl);
}
}
}
?>
<!doctype html>
<html>
<head>
<meta charset="utf-8">
<meta name="generator" content="sublime text 3114">
<meta name="author" content="3@dengpeng.cc">
<meta name="keywords" content="">
<meta name="description" content="">
<title>bbs站点登陆系统</title>
</head>
<body>
<p>
<h2>bbs.taoip.cn站点登陆系统</h2>
<form action="" method="post">
<label for="">用户名</label>
<input type="text" name="username">
<br>
<label for="">密码</label>
<input type="text" name="password">
<hr>
<button type="submit">提交</button>
</form>
</p>
</body>
</html>
在blog项目目录下,新建index.php和login.php两个脚本文件
编辑index.php文件
<?php
/**
* @author dengpeng <3@dengpeng.cc>
* @since 2017/01/03
* @copyright copyright (c) 2017 zixue.it gpl
* @license http://www.zixue.it/
*/
// blog站点
// (1)开启session会话
session_name('taoip');
session_start();
// (2)获取用户名和token进行校验
$username = isset($_cookie['username']) ? $_cookie['username'] : '';
$token = isset($_cookie['token']) ? $_cookie['token'] : '';
$salt = 'taoip';
$_token = md5($salt.$username);
if ($token != $_token) {
header('location: login.php');
exit();
}
echo "欢迎{$username}用户,访问blog站点";
?>
<?php
/**
* @author dengpeng <3@dengpeng.cc>
* @since 2017/01/03
* @copyright copyright (c) 2017 zixue.it gpl
* @license http://www.zixue.it/
*/
// blog站点
// (1)开启session会话
session_name('taoip');
session_start();
// (2)获取用户名和token进行校验
$username = isset($_cookie['username']) ? $_cookie['username'] : '';
$token = isset($_cookie['token']) ? $_cookie['token'] : '';
$salt = 'taoip';
$_token = md5($salt.$username);
if ($token != $_token) {
header('location: login.php');
exit();
}
echo "欢迎{$username}用户,访问blog站点";
?>
编辑login.php文件
<?php
/**
* @author dengpeng <3@dengpeng.cc>
* @since 2017/01/03
* @copyright copyright (c) 2017 zixue.it gpl
* @license http://www.zixue.it/
*/
// blog站点登陆系统
require '../functions.php';
// (2)验证
yztoken('dengpeng.cc');
// (1)判断是否登陆,登陆则跳转首页,未登录则去其他站点获取token
$url = isset($_get['url']) ? $_get['url'] : '';
if (empty($url)) {
gettoken('http://oa.taoip.cn/login.php?url=http://dengpeng.cc/login.php');
}
// (1)判断用户是否登陆
$bool = islogin();
$url = isset($_get['url']) ? $_get['url'] : '';
if ($bool) {
if (empty($url)) {
header('location: index.php');
} else {
$username = isset($_cookie['username']) ? $_cookie['username'] : '';
$token = isset($_cookie['token']) ? $_cookie['token'] : '';
$lurl = $url.'?username='.$username.'&token='.$token;
header('location: '.$lurl);
}
}
// (3)判断用户是否提交数据
if (!empty($_post)) {
$username = isset($_post['username']) ? $_post['username'] : '';
$password = isset($_post['password']) ? $_post['password'] : '';
// 从库中查询用户密码
@$link = mysql_connect('localhost', 'root', '');
mysql_query('use sso', $link);
mysql_query('set names utf8', $link);
$sql = "select * from users where username = '".$username."'";
$user = mysql_fetch_assoc(mysql_query($sql, $link));
// 校验
$salt = 'taoip';
$_password = md5($salt.$username);
// var_dump($user['password'] == $_password);
// print_r($user);exit();
if ($user['password'] == $_password) {
setcook($username, $_password, 'dengpeng.cc');
if (empty($url)) {
header('location: index.php');
} else {
header('location: '.$lurl);
}
}
}
?>
<!doctype html>
<html>
<head>
<meta charset="utf-8">
<meta name="generator" content="sublime text 3114">
<meta name="author" content="3@dengpeng.cc">
<meta name="keywords" content="">
<meta name="description" content="">
<title>blog站点登陆系统</title>
</head>
<body>
<p>
<h2>dengpeng.cc站点登陆系统</h2>
<form action="" method="post">
<label for="">用户名</label>
<input type="text" name="username">
<br>
<label for="">密码</label>
<input type="text" name="password">
<hr>
<button type="submit">提交</button>
</form>
</p>
</body>
</html>
配置本地虚拟主机
具体配置步骤,我想大家应该都会了,不需要我一一赘述.你只需要按照我给的参照,配置和不同域名对应目录的映射即可.
域名 /项目目录/
oa.taoip.cn /oa/
bbs.taoip.cn /bbs/
dengpeng.cc /blog/
恭喜您,已经完成了一个简单的sso系统
配置完成后,记得重启web服务器.然后你只需要访问这三个不同的站点,即可实现一个站点登陆,其他站点不再发送登陆请求.
感谢阅读,希望能帮助到大家,谢谢大家对本站的支持!
更多php编程 sso详细介绍及简单实例。