Implement authorization in Laravel using external model - php

I want to protect my routes with authorization levels in laravel - client users have access to one group while admin gets access to a separate group. However, the laravel API I'm creating runs concurrent to the existing legacy app which uses its own Users class, rather than the pre rolled eloquent Users model that all the docs use.
So far I haven't been able to determine how best to create this custom authorization middleware.
Basically I'd like to do something like this:
Route::group(['middleware' => 'custom_auth', function() {
Route::get('/' function() {
return "Hello World";
}
}];
//where 'custom_auth' points to something like
function isAdmin() {
if (Core\User->check_is_admin()) {
return true;
} else {
return false;
}
}
Kind of an open-ended question, I know, so any links to blogs/docs/videos would be appreciated. Thanks!

Solved:
I added custom middleware to App\Http\Middleware that copied the structure of the prebuilt Middleware\Authenticate.php file and uses the custom isAdmin() method.
Make sure to include in HTTP\Kernel.php
protected $routeMiddleware = [
'auth' => \App\Http\Middleware\Authenticate::class,
'auth_admin' => \App\Http\Middleware\AuthenticateAdmin::class, // <- New Middleware
...]
Then in my Routes\admin_api
Route::group(['middleware' => 'auth_admin'], function () {
Route::get('/', function () {
return "Hello World";
});
This all works!

Related

Best practice for adding custom logic in Lumen/Laravel controller

I'm using Lumen (Laravel) to create an API for an online activity/campaign application which handles things like on-site registrations and gift redemptions for various events. Occasionally, there are certain events with very specific functionality required which need their own custom logic. I'm wondering how to best handle this custom code from an architecture/best practices standpoint.
Here's what I have: I have a route which calls a CustomCampaignController like so:
$router->group([
'prefix' => 'v1'
], function () use ($router) {
// ..... other routes for standard activities
$router->post('customCampaigns', 'CustomCampaignController#runController');
});
Under App\Http\Controllers I've opened a directory to store classes for all custom activities. The customCampaigns route takes an activityId parameter whose value matches one of the activity classes. For example if the client posts activityId="MyCustomActivity" to customCampaigns, I would instantiate the following class: App\Http\Controllers\Custom\MyExampleActivity.
// app/Http/Controllers/CampaignController.php
public function runController(Request $request) {
$className = 'App\\Http\\Controllers\\Custom\\' . $request->input('activityId');
$customController = new $className;
return $customController->run();
}
The custom controller would then do its thing and return the response
// app/Http/Controllers/Custom/MyCustomActivity.php
namespace App\Http\Controllers\Custom;
class MyCustomActivity
{
public function __construct()
{
//
}
public function run()
{
// Custom logic here
return response('Response');
}
}
Is this a good approach or could it be considered an anti-pattern? Please let me know if there is another pattern for this type of problem.
I would prefer put the custom activity as the part of url. So, you will have something like this
$router->group([
'namespace' => 'App\Http\Controllers\Custom',
'prefix' => 'v1/customCampaigns'
], function () use ($router) {
$router->post('myCustomActivity', 'MyCustomActivityController#methodName');
});
Using this format, you can map the endpoint directly into a specific controller.

Laravel, same URI, different route name, different middleware causes over loop

In laravel I've simply done this:
Route::group(["middleware" => "admin"], function() {
Route::get("/", "UserController#index")->name("user_index");
});
Route::group(["middleware" => "user", "as" => "User::"], function() {
Route::get("/", "DocumentController#index")->name("user_index");
});
The problem is when I am logged in as my Admin auth middleware, when going to "/" my browser returns too many redirects and stops. I'm guessing because the second route is removing this as when I print out php artisan route:list there is only one result for "/" and that's with the user middle's parameters so it's defo overriding the previous route.
What I don't understand is why would it do this is both have a separate middleware?
Both middlewares are extremely simple. Below is my admin
public function handle($request, Closure $next)
{
if ( Auth::check() && Auth::user()->hasRole("customer_service") )
{
return $next($request);
}
return redirect("/");
}
And my user's middleware is exactly alike except the role is different
This is probably wrong but this is what I did to fix this particular issue with the above.
public function index() {
return \Auth::user()->hasRole("trainer") ? \App::call("App\Http\Controllers\Trainer\UserController#index")
: \App::call("App\Http\Controllers\User\UserController#index");
}

Cache entire HTML response in Laravel 5

I am trying to cache entire response using middleware
Steps i followed
Generated two middleware
AfterCacheMiddleware
BeforeCacheMiddleware
With in BeforeCacheMiddleware:
public function handle($request, Closure $next)
{
$key = $request->url();
if(Cache::has($key)) return Cache::get($key);
return $next($request);
}
With in AfterCacheMiddleware
public function handle ($request, Closure $next)
{
$response = $next($request);
$key = $request->url();
if (!Cache::has($key)) Cache::put($key, $response->getContent(), 60);
return $response;
}
Registered middleware in $routeMiddleware array of kernal.php
'cacheafter' => 'App\Http\Middleware\AfterCacheMiddleware',
'cachebefore' => 'App\Http\Middleware\BeforeCacheMiddleware',
With in routes.php i am calling this dummy routes like this
Route::get('middle', ['middleware' => 'cachebefore', 'cacheafter', function()
{
echo "From route";
}]);
Issue:
only cachebefore middleware is getting called. cacheafter is not getting called at all
Can anyone suggest what i am missing here ?
I found this question while I was looking for solution myself. I am aware that there is the Flatten package which does this caching, but I couldn't find nice examples on how to do this by myself. The solution attempt in this question contains ideas that were useful for my own solution, although I chose to go with a single middleware only.
Although the question is old and asker probably doesn't need the answer anymore, I will share my solution here as I feel that SO (and internet) lacks this caching sample for Laravel 5. I will try to explain as much as I can, but for most benefit you should be familiar with Routing, Caching and Middlewaring in Laravel 5. So here goes the solution:
Middleware
Create a middleware, those are usually placed in app/Http/Middleware folder and I will call the file CachePage.php
<?php
namespace App\Http\Middleware;
use Closure;
use Illuminate\Contracts\Auth\Guard;
use Cache;
class CachePage
{
public function handle($request, Closure $next)
{
$key = $request->fullUrl(); //key for caching/retrieving the response value
if (Cache::has($key)) //If it's cached...
return response(Cache::get($key)); //... return the value from cache and we're done.
$response = $next($request); //If it wasn't cached, execute the request and grab the response
$cachingTime = 60; //Let's cache it for 60 minutes
Cache::put($key, $response->getContent(), $cachingTime); //Cache response
return $response;
}
}
Change $key according to your needs... You have all the $request with all the parameters... Change Cache::put($key, $value, $minutes) to Cache::forever($key, $value) if you will clear the cache manually and don't want it to ever expire.
Using the URL as key for storing cache is usable in most cases, but one might think of something more appropriate for a certain project.
Registering middleware
Register it in app/Http/Kernel.php by adding the middleware to $routeMiddleware array like this:
protected $routeMiddleware = [
/* ... */
/* Other middleware that you already have there */
/* ... */
'cachepage' => \App\Http\Middleware\CachePage::class,
];
Of course, you should change \App\Http\Middleware\CachePage if you placed it elsewhere or gave it another name. Also the key name cachepage is up to you - it will be used to invoke the middleware.
Usage
In your app/Http/routes.php use the middleware just like auth or other middlewares, for example, you might make a route group for all the pages that should be cached:
Route::group(['middleware' => 'cachepage'], function ()
{
Route::get('/', 'HomeController#home');
Route::get('/contacts', 'SectionController#contacts');
});
The list of middlewares has to be inside square brackets:
Route::get('middle', ['middleware' => ['cachebefore', 'cacheafter'], function()
{
echo "From route";
}]);

Laravel 5 : Restrict access to controllers by User group

I've started learning Laravel 5.1 and so far I'm liking it! But there is one thing I don't get yet..
In my previous project I had 2 specific controllers (eg: "normal", "extended") which , after a successfull login, were called based on the Users user_group from the database.
If "Foo.Bar" enters his valid credentials and has the group normal he is redirected to NormalControler. Since I wasn't using any framework I restricted access to the other group by setting a $_SESSION with the group and checking it. So if another group tried to access that controller he got redirected.
How would this be achievable in Laravel 5? So far I have a controller which is callable without an Authentication and one restricted by this code in routes.php :
// All routes in the group are protected, only authed user are allowed to access them
Route::group(array('before' => 'auth'), function() {
// TO-DO : Seperate Controller access
});
And the login looks like this :
public function performLogin()
{
$logindata = array(
'username' => Input::get('user_name'),
'password' => Input::get('user_pass')
);
if( Auth::attempt( $logindata ) ){
// return \Redirect::to( check group and access this controller based on it);
}
else {
// TO-DO : Redirect back and show error message
dd('Login failed!');
}
}
----- EDIT -----
I've run the artisan command and made this middleware as you suggested :
namespace App\Http\Middleware;
use Closure;
use Request;
class GroupPermissions
{
/**
* Handle an incoming request.
*
* #param \Illuminate\Http\Request $request
* #param \Closure $next
* #return mixed
*/
public function handle($request, Closure $next, $group)
{
// Check User Group Permissions
if( $request->user()->group === $group ){
// Continue the request
return $next($request);
}
// Redirect
return redirect('restricted');
}
}
and edited this line into Kernel.php into $routeMiddleware :
'group.perm' => \App\Http\Middleware\GroupPermissions::class
I think this is done right so far, correct me if I'm wrong! Could I then do something like this to restrict the controllers?
Route::group(array('before' => 'auth'), function() {
Route::group( ['middleware' => 'group.perm', 'group' => 'normal'], function(){
Route::get('/normal/index', 'DummyNormalController#index');
});
Route::group( ['middleware' => 'group.perm', 'group' => 'extended'], function(){
Route::get('/extended/index', 'DummyExtendedController#index');
});
});
Ok, here is what you might do. Once user is logged in, you would check his credentials, get his user_group and decide what controller he should be redirected to.
if( Auth::attempt( $logindata ) ){
$user = Auth::user();
if ($user->inGroup('normal')) {
return redirect()->route('normal_controllers_named_route');
}
return redirect()->route('extended_controllers_named_route');
}
return redirect()->back()->withFlashMessage('don\'t get me wrong');
This will handle right routing after logging in.
The next portion where you need to protect you routes from unwanted user groups may be achieved with middlewares.
do an artisan command php artisan make:middleware ShouldBeInGroup
go to app/http/Kernel.php and add your new middleware to the routeMiddleware array. Key of the item might be anything you like. Let's call in inGroup. So: 'inGroup' => 'App\Http\Middleware\ShouldBeInGroup'
Now, in your controller, in constructor, you are able to call this middleware
$this->middleware('inGroup:extended'); //we also passing the name of the group
at lastly, work on the our middleware. Open newly created ShouldBeInGroup class and edit the handle method.
public function handle($request, Closure $next, $groupName)
{
if (Auth::check() && Auth::user()->inGroup($groupName)) {
return $next($request);
}
return redirect('/');
}
And finally you should work on inGroup method, that should return true of false. I assume that you have user_group field your users table. Then in your User eloquent model add the method
public function inGroup($groupName) {
return $this->user_group == $groupName;
}
Edit
if you want to use this middleware in your routes, you can do the following
Route::group(array('before' => 'auth'), function() {
Route::get('/normal/index', ['middleware' => 'group.perm:normal', 'uses' =>'DummyNormalController#index']);
}
But generally it's better to put all your middlewares into your Controller's constructor
public function __construct(){
$this->middleware('group.perm:normal'); // you can also pass in second argument to limit the methods this middleware is applied to : ['only' => ['store', 'update']];
}
And also on this note, Laravel provides built in auth middleware that you can use
public function __construct(){
$this->middleware('auth');
$this->middleware('group.perm:normal');
}
so then your routes would become much cleaner, just:
Route::get('normal/index', 'DummyNormalController#index');
I think the best way to do that is using middlewares. See the doc here
You can easily create a middleware using the following artisan command:
php artisan make:middleware ExtendedMiddleware
If you can't or don't want to use artisan, you need to create a class in The App/Http/Middleware folder.
In this class you'll need the following method to handle the request. In the method you can check for the user group.
public function handle($request, Closure $next)
{
// check user group
if( user_group_ok )
return $next($request); // Continue the request
return redirect('restricted'); // Redidrect
}
You can then use this middleware in your route.php file:
Route::group(['middleware' => 'auth'], function()
{
// Logged-in user with the extended group
Route::group(['middleware' => 'extended'], function()
{
// Restricted routes here
});
// Normal routes here
});
You can create a Middleware called : PermissionFilter
In PermissionFilter, you check if requesting user is in the group or not.
I can't provide a demo for now, but if you want I can make a demo later.
L5 middleware: http://laravel.com/docs/5.1/middleware

laravel how to create page restriction

Please tell me how to restrict the page using laravel,
i have 3 users.
1. admin, 2. client, 3. partner
i want if admin is logged in then open only- admin.index page
and if client logged in then open only- client.index page
i used in route.php following code-
Route::group(array('before' => 'role'), function(){
Route::resource('admin','AdminController#index');
Route::resource('client','clientController#index');
Route::resource('partner','partnerController#index');
});
using above code this if no any user login then it's coming properly,
and suppose if admin logged in, then page redirect to AdminController but,
if i hard coded (url) hit clientController or partnerController like http://localhost/laravel-login/public/client then client page is coming.
so please tell me how to avoid these
sorry for my english..
thanks
You may use different route filters for each route and create individual filters, for example:
Route::group(array('before' => 'auth'), function() {
Route::resource('admin','AdminController#index');
Route::resource('client','clientController#index');
Route::resource('partner','partnerController#index');
});
In each controller create a __construct method and add filter like:
public function __construct()
{
// In your AdminController
$this->beforeFilter(function() {
if(Auth::user()->role->name != 'admin') return redirect::to('/'); // home
});
}
Same way declare other filters in other controllers:
public function __construct()
{
// In your clientController
$this->beforeFilter(function() {
if(Auth::user()->role->name != 'client') return redirect::to('/'); // home
});
}
And so on. Check more on Laravel website about controller filtering.
The best way to restrict controllers to make new middleware , where you can define rules before the request. example :
I have a admin controller only register users with admin role can access it .
to do so when you define the route include the middleware .
// namespace = indicate where my controller is (sub folder )
// middleware = indicate what restriction i want for my controller you can pass one middleware or array of midlewares
Route::group([ 'namespace' => 'Admin','middleware' => ['auth' , 'IsAdmin'] ], function()
{
Route::resource('admin/posts', 'PostsController');
});
to create the middle ware and register it follow the documentation
look this is my middleware after
<?php
namespace App\Http\Middleware;
use Closure;
class IsAdmin
{
public function handle($request, Closure $next)
{
if($request->user()->is_admin == false ){
return redirect('/');
}
return $next($request);
}
}

Categories