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:
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<?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
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<?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
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<?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 lang= "en" > <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> <div class = "container" > <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> </div> </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
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<?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
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<?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 lang= "en" > <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> <div class = "container" > <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> </div> </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
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<?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
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<?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 lang= "en" > <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> <div class = "container" > <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> </div> </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!