php通过统一发放tickets实现单点登陆SSO功能
站点a,站点b,站点c,分别跨域,站点b当做统一认证中心,站点a,站点c登录请求转发到站点b,站点b当做统一登录,注册中心,也称第三方身份认证中心;用户从不同站点登录到第三方认证中心,完成登录验证后,会生成一个包含用户登录信息的加密key,并且生成多个不同子应用的带加密key的引导页面,用户可以自由选择进入子应用引导页,完成子页面认证,从而无需分别登录子应用的登陆入口了,看效果:
通过a站点登录,登录成功后进入第三方登录引导界面:
通过按钮,附加统一的key,进入a站引导中心
通过按钮,附加统一的key,进入c站引导中心
已经实现b站点代理登陆,实现a,c站点登陆了,只要b中心,添加多个子站点列表,就可以实现一个登录,注册中心,一个key实现所有子应用自动登陆,替代了传统子应用单独登陆的问题,简化了用户操作流程!
公共函数
<?phpfunction chksecret($secret){ $key=decode($secret); $arr = explode(",",$key); if(isset($arr[3]) && $arr[3]=="verifyok"){ $_SESSION['username']=$arr[1]; $_SESSION['login']=$arr[3]; }else{ $url=gethost(); echo "<script>alert('登陆失败!');window.location.href='".$url."';"; }}function gethost(){ return "http://".$_SERVER['HTTP_HOST'];}function chklogin(){ if(isset($_SESSION['login']) && $_SESSION['login']=='verifyok'){ }else{ $host=gethost(); header("location:$host"); }}function decode($string = '', $skey = 'lmj951753') { $strArr = str_split(str_replace(array('O0O0O', 'o000o', 'oo00o'), array('=', '+', '/'), $string), 2); $strCount = count($strArr); foreach (str_split($skey) as $key => $value) $key $value) $key
a站登录入口:
<meta http-equiv="Content-Type" content="text/html;charset=UTF-8"> <title>a站点</title> <h1 id="这是a站">这是a站</h1> <div> <form action="http://www.b.com/ssologin.php" method="post"> <p>用户名:<input type="text" name="username"></p> <p>密 码:<input type="text" name="password"></p> <p><input type="submit" name="'btn'" value="登陆"></p> </form> </div>
a站引导页:
<?phprequire_once ('function.php');session_start();$secret=isset($_GET['key'])?trim($_GET['key']):'';if($secret){ chksecret($secret);}else{ chklogin();}?> <meta http-equiv="Content-Type" content="text/html;charset=UTF-8"> <title>登陆引导中心</title> <p>欢迎回来!这里是A站点<?php echo $_SESSION['username'] ?></p> <p><a href="'http://www.a.com/admin.php'">管理中心 </a> <a href="'http://www.a.com/logout.php'">退出</a> </p>
sso登陆中心:
<?phpheader ("Content-type:text/html;charset=utf-8");$refer=$_SERVER['HTTP_REFERER'];$username=isset($_POST['username'])?trim($_POST['username']):'';$password=isset($_POST['password'])?trim($_POST['password']):'';if(empty($username) || empty($password)){ goback($refer);}$application=array(//根据子站点需要,添加应用列表 array('name'=>'进入A应用','url'=>'http://www.a.com/'), array('name'=>'进入C应用','url'=>'http://www.c.com/'));if($username=="admin" && $password=="123456"){ $str=time().','.$username.",".$password.",verifyok,".$refer; $key=encode($str); echo "登陆成功!".$username.'<br>'; foreach ($application as $k => $v) { if($refer==$v['url']){ echo "<a target="'_blank'" style="'color:red;font-weight:bold'" href="'%22.%24v%5B'url'%5D.%22home.php?key=%24key'">".$v['name']."</a> "; }else{ echo "<a target="'_blank'" href="'%22.%24v%5B'url'%5D.%22home.php?key=%24key'">".$v['name']."</a> "; } }}else{ echo "<script>alert('登陆失败!');history.go(-1);</script>"; exit();}function goback($refer){ header("Location:$refer"); exit();}function decode($string = '', $skey = 'lmj951753') { $strArr = str_split(str_replace(array('O0O0O', 'o000o', 'oo00o'), array('=', '+', '/'), $string), 2); $strCount = count($strArr); foreach (str_split($skey) as $key => $value) $key $value) $key
c站作为子站点和a站逻辑结构差不多,就不列举了,一个简单的基于php实现的sso登陆认证就完成了

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