CI Borrow other controller's function in another controller - codeigniter

I have a controller for my front end, and I'm using the DX Auth lib.
I want to use DX Auth's registration, but include it in my front page controller...I can simply copy-paste the function, but is there a better way to do this?

Are you trying to login and register users in your front page controller? You will need to install DX Auth according to the installation instructions and consult some of the examples and function references in the manual.
You'll need to load the DX Auth library in your constructor:
class Auth extends Controller
{
function Auth()
{
parent::Controller();
// Load library
$this->load->library('DX_Auth');
$this->load->library('Form_validation');
}
// implement other login functions like the examples
// using the library:
function login()
{
if (!$this->dx_auth->is_logged_in()) {
$is_valid = $this->form_validation->run('login');
$username = $this->input->post('username');
$password = $this->input->post('password');
if ($is_valid && $this->dx_auth->login($username, $password)) {
// redirect somewhere
} else {
// show some errors
}
}
}
// other authentication functions
}
If you wanted to you could make a helper to hold your authentication functions so you could access them from any controller. Follow the installation instructions to get your database set up and some sort of basic user registration and login working--they are fairly comprehensive.

Related

having anonymous user on laravel

I'm using Laravel 5.8. And I have created a custom Guard that is using jwt. That I use as a middleware for authenticating users.
I have some routes that need to have different responses based on being an authenticated user or an unauthenticated user. what do you suggest me to do? what is the best practices to implement this?
I can define a custom guard which its check function always returns true.and returning an integer like -1 for unauthenticated user while the user is not authenticated.but it does not sound a clean way of implementing this.
Depending on how you want to set this up, you can just use the Auth facade helpers in your controller method to see whether a user is authenticated or not:
// SomeController.php
public function index(Request $request)
{
if(Auth::guest()) {
return response()->json('i am a guest');
} else {
return response()->json('im not a guest');
}
}
or use any of the related methods:
// Inverse of `Auth::guest()`
$isLoggedIn = Auth::check();
$loggedInUser = Auth::user();
https://laravel.com/api/5.8/Illuminate/Auth/GuardHelpers.html

Overriding the login() method of Sentry 2 package in Laravel 4

My basic aim is to extend the package class and override a method in it.
I have used Fnatte's ans as a reference : How to extend laravel 4 core?
Sentry2 is a package that i am using for authentication in larval 4.
A user can be logged in using Sentry::login($credentials)
I want to override the login method of the Sentry package and remove the check for activating the user(i have commented it in the code below)
public function login(UserInterface $user, $remember = false)
{
#prevent throwing error if not activated !
// if ( ! $user->isActivated())
// {
// $login = $user->getLogin();
// throw new UserNotActivatedException("Cannot login user [$login] as they are not activated.");
// }
$this->user = $user;
// Create an array of data to persist to the session and / or cookie
$toPersist = array($user->getId(), $user->getPersistCode());
// Set sessions
$this->session->put($toPersist);
if ($remember)
{
$this->cookie->forever($toPersist);
}
// The user model can attach any handlers
// to the "recordLogin" event.
$user->recordLogin();
}
Steps i have done till now :
1. Created a app/lib folder and added my extension class CustomSentry in it.
2. Added the app/lib folder to composer.json class map
app/lib/CustomSentry.php :
use Cartalyst\Sentry\Sentry;
use Cartalyst\Sentry\Users\UserInterface;
class CustomSentry extends Sentry{
public function login(UserInterface $user, $remember = false){
$this->user = $user;
// Create an array of data to persist to the session and / or cookie
$toPersist = array($user->getId(), $user->getPersistCode());
// Set sessions
$this->session->put($toPersist);
if ($remember)
{
$this->cookie->forever($toPersist);
}
// The user model can attach any handlers
// to the "recordLogin" event.
$user->recordLogin();
}
}
4. Created a service provider app/lib/CustomSentryServiceProvider
use Cartalyst\Sentry\SentryServiceProvider
class CustomSentryServiceProvider extends SentryServiceProvider{
//What should i put it here?
}
5. Register the service provider in app/config/app.php
'CustomSentryServiceProvider'
6. Use it as :
Sentry::login($credentials);
Well i figured out the answer to the question.
The better way to extend the class would be to use the same name. Since i am already using namespacing it would help reduce the confusion.
Assuming my apps name is MyApp i will only need to replace:
Cartalyst\Sentry
by:
MyApp\Cartalyst\Sentry
the rest of the SentryService provider can be copied as it is.
Then i can call the login method the normal way
Sentry::login($credentials)
I have doubts, because you have to copy whole package/Sentry. Did you tried to extend the Sentry class? This this the best way to do what you want to achieve.

How to redirect to the method of a controller after user doing authentication on codeigniter?

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)

use ion auth authentication for codeigniter in another controller

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).

How to prevent to direct link access in Code igniter

How to prevent to direct link access in Code igniter
E.g.
http://localhost/myapp/admin/displayUser
There is no built in authentication library within CodeIgniter, although there are many well developed third party ones. My preference is for Ion Auth - http://benedmunds.com/ion_auth/.
However if you are simply referring to preventing access to some "private" controller methods, you should add an underscore to the beginning of the method name - this will mean it is not accessible via a url, only via other controller methods:
function _myprivatemethod() {
return true;
}
Create a library as authenticate.php having following code into it and add that library in autoload.php
class Authenticate
{
function Authenticate()
{
$CI = & get_instance();
if ($CI->session->userdata('USERID') == "")
{
$redirectlink = 'contoller function path to your login page';
redirect($redirectlink);
exit;
}
}
}
This my not help you but it might help someone else.
I did it by creating a hook that checks if the user is logged in . If they are not it redirects them to the home login controller.
if (!$this->session->userdata('logged_in')) {
redirect('user/login');
}
If you create a Auth_Controller that extends CI Controller then instead of extending CI Controller you can make all your apps extend your new Auth_Controller so they always redirect if the user is not logged in.
if (!$this->session->userdata('logged_in')) {
redirect('user/login');
}
this will perfectly work..
just remember to load the session library as well.
$this->load->library('session');

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