控制器之间丢弃PHP会话变量

时间:2013-05-03 17:04:17

标签: php session model-view-controller authentication

所以问题是,当调用/ MVCTest / manage / dashboard时,验证器失败,因为authenticate(验证器类中的方法)没有找到$ _SESSION ['user_id'],所以它将用户踢回登录页面。

但是,如果我将以下操作更改为: action =“/ MVCTest / manage / login?target = MVCTest / manage / dashboard”

并将相同的登录功能从索引控制器添加到manageController,一切正常,但这意味着我必须在每个控制器中都有一个登录功能,它有一个我要登录的页面(这是每个页面以后我想要一个用户仪表板。)

那么如何让$ _SESSION在控制器之间预先设定,这样我就可以让一个控制器负责记录用户进/出?

首先,一些代码......

action =“/ MVCTest / index / login?target = MVCTest / manage / dashboard”调用indexController的登录操作。

<?php
  Class indexController Extends Core_Controller {

    public function login(){
     $this->registry->authenticator->login($_POST);
    }
  }
?>

在bootstrap中创建了authenticator对象并将其分配给注册表。现在是验证者对象。

<?php
  Class Authenticator Extends Base_Model {

    public function login($credentials){
  //Select user from the database based on email/username
  try{
    $STH = $this->db->prepare("SELECT * FROM user_account WHERE email = ? OR username = ?");
    $STH->bindParam(1, $credentials['login']);
    $STH->bindParam(2, $credentials['login']);
    $STH->execute();
    while($user = $STH->fetch(PDO::FETCH_OBJ)){
      $password = $user->user_salt.$credentials['password'];
      $password = $this->hashData($password);
      try{
        if($password === $user->password){
          //Active and Verified user exists, set sessions
          $random = $this->generateRandomString();
          //Build the token
          $token = $_SERVER["HTTP_USER_AGENT"] . $random;
          $token = $this->hashData($token);

          //Setup session variables
          session_start();
          $_SESSION["token"] = $token;
          $_SESSION["user_id"] = $user->id;

          //Delete old session records for the user
          $STH = $this->db->prepare("DELETE FROM user_session WHERE user_account_id = ?");
          $STH->bindParam(1, $user->id);
          $STH->execute();

          //Insert new session records for the user
          try{
            $STH = $this->db->prepare("INSERT INTO user_session (user_account_id, session_id, token) 
                                       VALUES (?,'".session_id()."', ?);");
            $STH->bindParam(1, $user->id);
            $STH->bindParam(2, $token);
            $STH->execute();
            header("Location: /{$_GET['target']}");
            exit;
          } catch (PDOException $e){
            file_put_contents(__SITE_PATH."/logs/errors/MySQLErrors", $e->getMessage()."\n", FILE_APPEND);
            die($e->getMessage());
          }                
        } else {
          throw new Exception("Password is incorrect!");
        }
      } catch (Exception $e){
        file_put_contents(__SITE_PATH."/logs/errors/LoginErrors", $e->getMessage()."\n", FILE_APPEND);
        die($e->getMessage());
      }
    }
    //Email/Username not found
    throw new Exception("Email/Username not found!");
  } catch (Exception $e) {
    file_put_contents(__SITE_PATH."/logs/errors/LoginErrors", $e->getMessage()."\n", FILE_APPEND);
    die($e->getMessage());
  } catch (PDOException $e){
    file_put_contents(__SITE_PATH."/logs/errors/MySQLErrors", $e->getMessage()."\n", FILE_APPEND);
    die($e->getMessage());
  }
}      
}
?>

最后,我的manageController

<?php
  session_name();
  session_set_cookie_params(3600, "/MVCTest/manage/");
  session_start();

  Class manageController Extends Core_Controller {

    public function index() {
      if(isset($_SESSION['user_id'])){
        header("Location: /MVCTest/manage/dashboard");
        exit;
      }
      $this->registry->template->show('manage/index');
    }

    public function dashboard(){
      $this->registry->authenticator->authenticate("/MVCTest/manage/");     
      $this->registry->template->show('manage/dashboard');
    }
  }
?>

我找到了答案。保留session_name();   session_set_cookie_params(3600,__SITE_PATH。'/ MVCTest / manage /');在moveController中移动session_start();添加公共登录功能时,扩展Core_Controller的开头。

结果是每个页面都可以记录某人;但是,我觉得这是不好的做法。我看到的问题是,无论用户是否登录,每个页面调用都将启动一个会话。我觉得这很糟糕,有什么建议吗?

1 个答案:

答案 0 :(得分:1)

看看这段代码:

//Setup session variables
session_start();
$_SESSION["token"] = $token;
$_SESSION["user_id"] = $user->id;

您必须使用

session_start();

在文件的开头。

详细了解session_start