会话和LDAP

Question

我有一个网页.对网页的身份验证由我设置的ldap服务器处理.现在我不想实现会话,因此当用户处于非活动状态一段时间(在下面的情况下,10秒)时,会话将结束,用户将从ldap服务器取消绑定.我发现这段代码摘录:

<?php
    session_cache_expire(20);

    session_start(); 
    $inactive = 10;
    if(isset($_SESSION['start'])) {
        $session_life = time() - $_SESSION['start'];
        if($session_life > $inactive){
            header("Location: endSession.php"); 

        }
    }
    $_SESSION['start'] = time();
?>

它不起作用.如果我刷新页面,它会将我重定向到我的'endSession.php'页面,即使我是活跃的.

Answer 1

function check_auth_ldap () {

  $sessionTimeoutSecs = 10;
  $ldapServer = '11.22.33.44';
  $ldapPort = 389;

  if (!isset($_SESSION)) session_start();

  if (!empty($_SESSION['lastactivity']) && $_SESSION['lastactivity'] > time() - $sessionTimeoutSecs && !isset($_GET['logout'])) {

    // Session is already authenticated
    $ds = ldap_connect($ldapServer, $ldapPort);
    if (ldap_bind($ds, $_SESSION['username'], $_SESSION['password'])) {
      $_SESSION['lastactivity'] = time();
      return $ds;
    } else {
      unset($_SESSION['lastactivity'], $_SESSION['username'], $_SESSION['password']);
      header("Location: endSession.php");
      exit;
    }

  } else if (isset($_POST['username'], $_POST['password'])) {

    // Handle login requests
    $ds = ldap_connect($ldapServer, $ldapPort);
    if (ldap_bind($ds, $_POST['username'], $_POST['password'])) {
      // Successful auth
      $_SESSION['lastactivity'] = time();
      $_SESSION['username'] = $_POST['username'];
      $_SESSION['password'] = $_POST['password'];
      return $ds;
    } else {
      // Auth failed
      header("Location: endSession.php");
      exit;
    }

  } else {

    // Session has expired or a logout was requested
    unset($_SESSION['lastactivity'], $_SESSION['username'], $_SESSION['password']);
    header("Location: endSession.php");
    exit;

  }

}

只需在每个受保护页面的顶部调用上述功能即可.这将处理所有身份验证过程.如果用户通过身份验证,它将返回LDAP连接资源,如果endSession.php不是,则将其重定向到.

只需将此行放在每个页面的顶部:

$ds = check_auth_ldap();

...而且该功能将为您完成所有的腿部工作.