處理登錄表單驗證

Question

我想弄清楚如何使用登錄表單提交來驗證用戶登錄憑證。有了這個模板，我有它包括一個JavaScript驗證代碼，但我確實有我自己的驗證代碼在服務器端我想要使用（PHP）。在經過php驗證之後，如果在驗證登錄時出現問題，或者在成功登錄後重定向到儀表板，我希望它再次重定向到登錄表單。

JS驗證：

$(window).load(function(){ 
/* 
* Validate the form when it is submitted 
*/ 
var validatelogin = $("form").validate({ 
    invalidHandler: function(form, validator) { 
     var errors = validator.numberOfInvalids(); 
     if (errors) { 
      var message = errors == 1 
       ? 'You missed 1 field. It has been highlighted.' 
       : 'You missed ' + errors + ' fields. They have been highlighted.'; 
      $('.box .content').removeAlertBoxes(); 
      $('.box .content').alertBox(message, {type: 'warning', icon: true, noMargin: false}); 
      $('.box .content .alert').css({ 
       width: '', 
       margin: '0', 
       borderLeft: 'none', 
       borderRight: 'none', 
       borderRadius: 0 
      }); 
     } else { 
      $('.box .content').removeAlertBoxes(); 
     } 
    }, 
    showErrors : function(errorMap, errorList) { 
      this.defaultShowErrors(); 
      var self = this; 
      $.each(errorList, function() { 
       var $input = $(this.element); 
       var $label = $input.parent().find('label.error').hide(); 
       $label.addClass('red'); 
       $label.css('width', ''); 
       $input.trigger('labeled'); 
       $label.fadeIn(); 
      }); 
    }, 
    submitHandler: function(form) { 
     window.location.replace('dashboard.html'); 
    } 
}); 
}); 

控制器：

<?php if (! defined('BASEPATH')) exit('No direct script access allowed'); 

class Usermanagement extends CI_Controller { 

public function __construct() 
{ 
    parent::__construct(); 
} 

public function index() 
{ 
    //Config Defaults Start 
    $msgBoxMsgs = array();//msgType = dl, info, warn, note, msg 
    $cssPageAddons = '';//If you have extra CSS for this view append it here 
    $jsPageAddons = '';//If you have extra JS for this view append it here 
    $metaAddons = '';//Sometimes there is a need for additional Meta Data such in the case of Facebook addon's 
    $siteTitle = '';//alter only if you need something other than the default for this view. 
    //Config Defaults Start 


    //examples of how to use the message box system (css not included). 
    //$msgBoxMsgs[] = array('msgType' => 'dl', 'theMsg' => 'This is a Blank Message Box...'); 

    /**********************************************************Your Coding Logic Here, Start*/ 

    if(!$this->session->userdata('logged_in')) 
    { 
     $bodyContent = "login";//which view file 
    } 
    else 
    { 
     $bodyContent = "cpanel/index";//which view file 
    } 

    $bodyType = "full";//type of template 

    /***********************************************************Your Coding Logic Here, End*/ 

    //Double checks if any default variables have been changed, Start. 
    //If msgBoxMsgs array has anything in it, if so displays it in view, else does nothing.  
    if(count($msgBoxMsgs) !== 0) 
    { 
     $msgBoxes = $this->msgboxes->buildMsgBoxesOutput(array('display' => 'show', 'msgs' =>$msgBoxMsgs)); 
    } 
    else 
    { 
     $msgBoxes = array('display' => 'none'); 
    } 

    if($siteTitle == '') 
    { 
     $siteTitle = $this->metatags->SiteTitle(); //reads 
    } 

    //Double checks if any default variables have been changed, End. 

    $this->data['msgBoxes'] = $msgBoxes; 
    $this->data['cssPageAddons'] = $cssPageAddons;//if there is any additional CSS to add from above Variable this will send it to the view. 
    $this->data['jsPageAddons'] = $jsPageAddons;//if there is any addictional JS to add from the above variable this will send it to the view. 
    $this->data['metaAddons'] = $metaAddons;//if there is any addictional meta data to add from the above variable this will send it to the view. 
    $this->data['pageMetaTags'] = $this->metatags->MetaTags();//defaults can be changed via models/metatags.php 
    $this->data['siteTitle'] = $siteTitle;//defaults can be changed via models/metatags.php 
    $this->data['bodyType'] = $bodyType; 
    $this->data['bodyContent'] = $bodyContent; 
    $this->load->view('usermanagement/index', $this->data); 
} 

function login() 
{ 
    $this->form_validation->set_rules('username', 'Username', 'trim|required|max_length[50]|xss_clean'); 
    $this->form_validation->set_rules('password', 'Password', 'trim|required|max_length[12]|xss_clean'); 

    if ($this->form_validation->run() == FALSE) 
    { 
     $this->index(); 
    } 
    else 
    { 
     $username = $this->input->post('username'); 
     $password = $this->input->post('password'); 

     $user_id = $this->loggedin->check_login($username, $password); 

     if(! $user_id) 
     { 
      redirect('/'); 
     } 
     else 
     { 
      $this->session->set_userdata(array(
       'logged_in' => TRUE, 
       'user_id' => $user_id 
      )); 
      redirect('cpanel/index'); 
     } 
    } 
} 

function logout() 
{ 
    $this->session->sess_destroy(); 
    $this->index(); 
}  

} 

/* End of file usermanagement.php */ 
/* Location: ./application/controllers/usermanagement.php */ 

任何想法？

Answer 1

我認爲你的問題是如何檢測登錄用戶的驗證，如果我理解正確。在CodeIgniter控制器函數中，您可以檢查它並使用代碼在客戶端（JavaScript）中對其進行了解。例如，返回如下內容：

if(valid){ 
    echo "1, You're logged in successfully"; 
} 

然後，您可以將它拆分爲JS並使用代碼和消息部分。

對於JS使用的導航：

window.location.href = 'yourlocation';

如果您的問題涉及到如何讓CI功能和jQuery的AJAX使用它，我可以告訴你，你可以用它就像舊時代。 url: 'yourrootfolder/yourcontroller/yourfunction'

希望得到這個幫助。