this is very simple codeigniter set cookie code which is not working. It is very basic form:
ini_set('display_errors','On');
error_reporting(E_ALL);
class Test extends CI_Controller {
public function index()
{
echo 'Hello World!';
$this->load->helper('cookie');
set_cookie('apple','fruit');
$cook = get_cookie('apple');
print_r($cook);
}
}
This is basically a test controller which does nothing but sets cookie. Any thoughts.
The way you setting and retrieving is wrong.
Setting cookie is like this
$this->input->set_cookie();
Retrieving cookie is like this
$this->input->cookie();
Check Cookie helper and check this example too
Related
I'm facing a problem in my CodeIgniter application. I'm using set_userdata() to put some information in the session from a specific controller method, and when I try to retrieve this information from another controller method using userdata() it returns empty when using Safari. It works ok when I use Chrome or Firefox.
Here is the controller code:
<?php
class Helloworld extends CI_Controller {
public function display()
{
$this->load->helper('url');
$this->load->library('session');
$this->session->set_userdata('some_name', 'some_value');
//echo $this->session->userdata('some_name');exit; //HERE IT WORKS
redirect("dashboard");
}
public function user_dashboard()
{
$this->load->library('session');
echo "redirect and session test - ";
echo $this->session->userdata('some_name');exit; //HERE IT FAILS
}
}
?>
Here is a snippet code from routes.php:
$route['dashboard'] = 'helloworld/user_dashboard';
So, when I access this URL
http://mydomainhere.com/CI/index.php/helloworld/display
It redirects to this one:
http://mydomainhere.com/CI/index.php/dashboard
The output in Chrome and Firefox is:
"redirect and session test - some_value"
The output in Safari is:
"redirect and session test - "
The strange thing is that it works on Safari if I try to retrieve the information in the session inside the same controller method where I put the information in the session. It doesn't work if I try to retrieve the information from another controller method, in this case I assign the information to the session inside the "display" method and I try to get it from "user_dashboard" method.
I appreciate any help.
Thank you guys.
I am using the Default Controller to make the user authentication. What I am trying to do is whatever is the page the user request news/add or news/index or themes/all or maps/view, if he is not logged in, he or she will be directed to the log in page and then redirected to the page he wanted to go, not always the same page.
You can your the
CodeIgniter User Agent Library and Session Library to store and use the referring url. The user agent library is basicly accessing the $_SERVER['HTTP_REFERER'] value.
NOTE: from the php.net website:
Not all user agents will set this, and some provide the ability to modify HTTP_REFERER as a feature. In short, it cannot really be trusted.
so this is not a foolproof method.
if ($this->agent->is_referral()) {
$this->session->set_userdata('prev_url', $this->agent->referrer());
}
// later, when login is successful
$prev_url = $this->session->userdata('prev_url');
if( $prev_url ) {
redirect($prev_url);
}
one way is to do it in the constructor of your controller. that way they are redirected before going to the news/add etc.
so for example you create a model called "sentry" and a "getUser()" method to check the browser cookie to see if the user is authorized. if they are not authorized have it return false. if they are authorized have it return $user so then you have it available for your other methods.
function __construct() {
parent::__construct();
$this->load->model( 'sentry' );
if ( ! $this->user = $this->sentry->_getUser() )
{ redirect( '/login/', 'refresh' ); }
}
so then for example you could have $this->user->name etc etc available to any method in the controller. And $this->user will also automatically be available in all the view files of this controller.
I do this by extending my controller and I check in constructor if person is logged in or not, if person is logged in I save to the session current URL, and redirect person to the login page (if same constructor is applied (controller one) I make exception to not save current URL to the session) after logging in I call redirect function to the session variable.
How to extend your controller is done here http://philsturgeon.co.uk/blog/2010/02/CodeIgniter-Base-Classes-Keeping-it-DRY
note that when your controller is extended you use $this->data['variable_sent_to_view'] and you can omit second parameter of $this->load->view()
here is some example code assuming you know how your login controller works
<?php if (!defined('BASEPATH')) exit('No direct script access allowed');
class MY_Controller extends CI_Controller {
function __construct() {
parent::__construct();
$this->output->enable_profiler(FALSE);
if ($refer = $this->session->flashdata('refer')) {
$this->data['refer_page'] = $refer; // $this->data['refer_page'] is variable that you are interested in
unset($refer);
} else {
$this->data['refer_page'] = base_url(); //default refer_page
}
//check if user is NOT logged in
if (!$logged_in) {
$this->_setRefer(); //this is private function
}
// else dont care about it
}
private function _setRefer() {
$invalid_method = array('search', 'login'); // if method is 'search' or 'login' url will not save in session (it will stay same as was before)
$valid_refer = TRUE;
if (in_array($this->router->method, $invalid_method)) {
$valid_refer = FALSE;
}
if (!(count($_POST) > 0) && $valid_refer === TRUE && !$this->input->is_ajax_request()) {
$this->session->set_flashdata('refer', current_url());
} else {
$this->session->set_flashdata('refer', $this->data['refer_page']);
}
}
}
now in after succesful login redirect to $this->data['refer_page'], but note that login controller must by extended by MY_Controller.
this script also takes care about what happens if user made mistake and inserted wrong password (page will reload but "old" url stays)
My question is a little hard to explain, but I'll try..
Basically, in the tank_auth example script there is this code to redirect the user if they are not already logged on;
if (!$this->tank_auth->is_logged_in()) {
redirect('/auth/login/');
} else {
$data['user_id'] = $this->tank_auth->get_user_id();
$data['username'] = $this->tank_auth->get_username();
$this->load->view('welcome', $data);
}
Which is great if you have a login page and the user starts at the beginning each time. (And I'm comfortable doing it that way)
But I want the user to be able to jump in to website at (almost) any controller and have a login bar come up across the top. When logging in, it should not redirect them to another page. They should end up on the same page they tried to visit.
For example, my user might load straight away example.com/food/burgers. I'd like a blank page to come up, but just with a login bar across the top. Then when they log in, they end up back on the 'burgers' page but this time there is also a list of burgers and the bar accross the top that tells them they are logged in, with the option to log-off.
So how do I do this? Do I need to call the auth/login method from every controller? Do I do it as an "include"? No idea.
Firstly you will want to create a base controller that all your controllers will extend from. You would check for authentication in this base controller. If they aren't logged in, then save the entry point uri in a cookie and redirect to the login page.
// application/core/My_Controller.php
class MY_Controller extends CI_Controller
{
public function __construct()
{
parent::__construct();
$this->load->library('session');
$this->load->model('tank_auth');
if (!$this->tank_auth->is_logged_in()) {
// save the visitors entry point and redirect to login
$this->session->set_userdata('redirect', $this->uri->uri_string());
redirect('auth/login');
}
}
}
Your main controllers will extend MY_Controller and don't need to worry about authentication.
class Welcome extends MY_Controller
{
public function index()
{
$data['user_id'] = $this->tank_auth->get_user_id();
$data['username'] = $this->tank_auth->get_username();
$this->load->view('welcome', $data);
}
}
Your authentication controller wouldn't extend MY_Controller otherwise it will get stuck in a redirect loop.
class Auth extends CI_Controller
{
public function login()
{
$this->load->library('session');
if (auth_success) {
// redirect the user back to the entry point or the welcome controller
if ($uri = $this->session->userdata('redirect')) {
redirect($uri);
} else {
redirect('welcome');
}
}
// handle authentication failure
}
}
Instead of using sessions to store the redirect uri, you could also pass it along as a GET parameter.
I am trying to build a web application with codeigniter. I have installed Ion Auth as my authentication model.
The default Auth.php controller authenticates the user and sets up the session.
<?php defined('BASEPATH') OR exit('No direct script access allowed');
class Auth extends CI_Controller {
function __construct()
{
parent::__construct();
$this->load->library('ion_auth');
$this->load->library('session');
$this->load->library('form_validation');
$this->load->helper('url');
$data['title']="Login Page";
$this->load->view("view_site_header",$data);
// Load MongoDB library instead of native db driver if required
$this->config->item('use_mongodb', 'ion_auth') ?
$this->load->library('mongo_db') :
$this->load->database();
$this->form_validation->set_error_delimiters($this->config->item('error_start_delimiter', 'ion_auth'), $this->config->item('error_end_delimiter', 'ion_auth'));
}
//redirect if needed, otherwise display the user list
function index()
{
// if not logged in - go to home page
if (!$this->ion_auth->logged_in())
{
//redirect them to the login page
redirect('auth/login', 'refresh');
}
// if user is an admin go to this page
elseif ($this->ion_auth->is_admin())
{
// if an admin, go to admin area
//set the flash data error message if there is one
$this->data['message'] = (validation_errors()) ? validation_errors() : $this->session->flashdata('message');
//list the users
$this->data['users'] = $this->ion_auth->users()->result();
foreach ($this->data['users'] as $k => $user)
{
$this->data['users'][$k]->groups = $this->ion_auth->get_users_groups($user->id)->result();
}
$this->_render_page('auth/view_users', $this->data);
} else
{
//redirect them to the default home page
$data['title']="IMS Home Page";
$this->load->view("generic/view_site_header",$data);
$this->load->view("generic/view_generic_nav");
$this->load->view("generic/view_content_generic");
$this->load->view("view_site_footer");
}
}
what I want to do is create a new controller for my application logic and leave the auth controller for authentication.
How can I make use of the auth controller to ensure my user is logged in when accessing my new controller? in addition I need the ession information to be available to the new controller.
my new controller, master_data has the following code:
<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
class Masterdata extends CI_Controller{
function index ()
{
$data['title']="Master Data Home Page";
$this->load->view("master_data/view_master_data_header",$data);
$this->load->view("master_data/view_master_data_nav");
$this->load->view("master_data/view_content_master_data_home");
$this->load->view("master_data/view_master_data_footer");
echo $this->session->userdata('username');
}
}
obviously the echo $this->session->userdata('username'); does not work as the new controller has no knowledge of the auth controller session.
any help appreciated as always.
Kind Regards,
First autoload the ion_auth library.
If u simply want to check if the user is logged-in, just check it in every controller's constructor u load
public function __construct() {
parent::__construct();
if (!$this->ion_auth->logged_in()) {
// redirect to login view
}
}
If u happen to have multiple groups , u can create a new controller inside application/core/MY_controller.This controller will check whether user is logged in.You can extend this base controller to create new controller.A very good explanation on this is given by David john.Check this link .
obviously the echo $this->session->userdata('username'); does not work as the new controller has no knowledge of the auth controller session.
Eh...if the session library is loaded, then yes...the controller calling it will be able to access the session variable $username.
The way we handle this is to create a new controller parent class like MY_Controller in the application/core directory. This class loads common libraries/packages (like session and ion_auth). You could also autoload the libraries and helpers.
Since ion_auth stores all of the user profile data in a session var, all you need (on subsequent, non-authenticated) pages is the session lib to retrieve session data about the logged in user.
You really should check for their auth status though, and fail gracefully:
if (!$this->ion_auth->logged_in()) {
// echo a login link
} else {
// echo session var for username
}
Something like that...
jcorrys approach should work. An alternative approach (which will give your entire application a great deal more flexibility is to use a modular layout - https://bitbucket.org/wiredesignz/codeigniter-modular-extensions-hmvc
You will have to do a bit of fiddling to get it to play nicely with ion auth, but following the instructions in this question worked for me: Using Ion Auth as a separate module in the HMVC structure (have a look at the forks of ion auth on git hub - I think someone may have already done it for you)
This approach will allow you to access any method in any controller from anywhere in your application (even from a view if you need to) using this kind of syntax: modules::run('module/controller/method', $params);
This will essentially allow you to develop the existing ion auth controller into a user management controller which you can access from any other controllers you create (nice and dry).
i was create codeigniter controller like this :
function Home() {
parent::Controller();
if(!$this->session->userdata('id'))
redirect ('login');
$this->load->model('Home_Model');
}
but when i try to access the page, the redirect page now show. just show 404 not found but i was create login.php on controller and views also home_model.php on model.
what the problem with that code and how to fix that?
thank you
Because of this line: parent::Controller(), I assume that you are using CodeIgniter 1. Since you are building pages like home and login, I assume that you are starting building a new website. If my assumptions are right, I suggest you using the latest CodeIgniter (v2.1.0 at the moment, required PHP 5.1.6 or newer). You can grab a copy at CodeIgniter Home Page.
First of all, I think you should check your error reporting level. It should be something like error_reporting(E_ALL); for debugging. If not yet, turn it on and run the code again. Maybe you will get your own answer after that :)
After that, you should try the code below for your constructor to check that your home controller process as you expected.
function Home()
{
parent::Controller();
echo 'Home Class Initialized';
}
It should at least show 404 page. If it doesn't print out anything then we need more information. Maybe you should turn on logging and analyze your log files: look for /application/config/config.php: $config['log_threshold'] = 2;
If it print out 'Home Class Initialized' follow by a 404 message: please check if your controller have something like:
public function index()
{
echo 'Invoke default method';
}
If not yet, please add one. You may also want to take a look at using your own default method here
If it still a 404 then sorry, I have no idea. Maybe you should post more code.
If it print out 'Home Class Initialized' only: good. Now try this
function Home()
{
parent::Controller();
if ( ! $this->session->userdata('id'))
{
echo 'Redirecting to login page';
//redirect ('login');
}
$this->load->model('Home_Model');
}
If this print out Redirecting to login page, it's now time for you to uncomment //redirect ('login'); and check the login page. Follow the same path with step 1 & 2.
If not, check your session data: var_dump($this->session->userdata('id'). You could learn more about PHP falsehood here
After all, if it still fails, consider using __construct() of PHP 5
function __construct()
{
parent::__construct();
if ( ! $this->session->userdata('id'))
{
redirect ('login');
}
$this->load->model('Home_Model');
}
Other: if you use this $this->load->model('Home_Model');, I think you will have to call home_model like this $this->Home_Model->foo(); or there will be error access to NULL