Laravel cURL POST Throwing TokenMismatchException - php

I have a problem with POST cURL request to my application.
Currently, I'm building RESTFUL registration function using laravel 5.
The routes for this is example is
localhost:8000/user/create
I pass value using cURL function on terminal
curl -d 'fname=randy&lname=tan&id_location=1&email=randy#randytan.me&password=randytan&remember_token=Y&created_at=2015-03-03' localhost:8000/auth/register/
And this is my routes.php
Route::post('user/create', 'UserController#create');
And this is my function to store the registration user
public function create()
{
//function to create user.
$userAccounts = new User;
$userAccounts->fname = Request::get('fname');
$userAccounts->lname = Request::get('lname');
$userAccounts->id_location = Request::get('id_location');
$userAccounts->email = Request::get('email');
$userAccounts->password = Hash::make(Request::get('password'));
$userAccounts->created_at = Request::get('created_at');
$userAccounts->save();
return Response::json(array(
'error' => false,
'user' => $userAccounts->fname . " " . $userAccounts->lname
), 200);
}
Executing the cURL syntax above, I'm getting this error TokenMismatchException
Do you have any ideas?
Because I'm implementing middleware only in my few urls, and this cURL registration url is not tight into any authentication mechanism.
Thanks before.

In Laravel 5 (latest version) you can specify routes you want to exclude in /app/Http/Middleware/VerifyCsrfToken.php
class VerifyCsrfToken extends BaseVerifier
{
/**
* The URIs that should be excluded from CSRF verification.
*
* #var array
*/
protected $except = [
'rest-api/*', # all routes to rest-api will be excluded.
];
}
Hope this helps.

Laravel 5 enforces CSFR token authentication in middleware by default.
you can disable CSFR on selected route Here is the link
or you can try some of these solutions. Hope so it will help.
changing your csfr token method /app/Http/Middleware/VerifyCsrfToken.php
public function handle ($request, Closure $next)
{
if ( !$request->is("api/*"))
{
return parent::handle($request, $next);
}
return $next($request);
}

In my case, i needed to add the route on api.php instead of web.php

Related

Laravel Middleware - Skip Passport Auth

We have 2 auth middlewares applied to specific routes, 'external_token' and 'auth:api'. When an external bearer token is presented we inspect it, and if all the values are good we consider the user authorized to access the requested url.
How do we process all other middlewares except passport auth?
public function handle(Request $request, Closure $next)
{
$token = $request->header('Bearer');
try {
list($JWTHeader, $JWTPayload) = JWT::verify($token, JWT::TYPE_ID_EXTERNAL);
$this->user = User::where('external_id', $JWTPayload['external_id'])->first();
// Can we just set $this->user and process all other middlewares except auth?
} catch (Exception $e) {
Log::debug($e);
}
$response = $next($request);
return $response;
}
Well, one thing you could do would be to set the user on the api guard, so when the auth middleware runs, it'll find the user you provided. You would have to ensure that your external_token middleware runs first.
auth()->guard('api')->setUser($this->user);
Another option would be to convert your external_token middleware into a Laravel auth guard so that you can use the built-in auth functionality. Then, you can protect your route with auth:api,external_token, and the auth will pass if any one of the specified guards is successful.
The simplest example would be a closure request guard.
In your AuthServiceProvider::boot() method:
// don't forget your "use" statements for all these classes
public function boot()
{
// ...
Auth::viaRequest('external_token_driver', function ($request) {
$token = $request->header('Bearer');
try {
list($JWTHeader, $JWTPayload) = JWT::verify($token, JWT::TYPE_ID_EXTERNAL);
return User::where('external_id', $JWTPayload['external_id'])->first();
} catch (Exception $e) {
Log::debug($e);
}
return null;
});
}
In your auth.php config:
'guards' => [
// web, api, etc...
'external_token' => [
'driver' => 'external_token_driver',
],
],
NB: all untested.

Laravel Validation - Rule to disallow request parameters

In my Laravel 5.8 app I have many API routes which return paginated results. If I make a request to my API appending the following query string I can disable pagination.
http://api.test/users/?no_paginate=1
My question is... how can I disable no_paginate from being used on certain routes? I'd preferbly want some validation to go in the request class but I can't find anything in the docs for that.
You can do this using a Global Middleware.
Create a DisableNoPaginate Middleware:
php artisan make:middleware DisableNoPaginate
Then define what the middleware should do (DisableNoPaginate.php):
<?php
namespace App\Http\Middleware;
use Closure;
class DisableNoPaginate
{
public function handle($request, Closure $next)
{
//remove no_paginate param from request object
unset($request['no_paginate']);
return $next($request);
}
}
Arrange for the middleware to run on all routes (routes.php):
$app->middleware([
App\Http\Middleware\DisableNoPaginate::class
]);
Now the no_paginate query param should be stripped from all your incoming requests.
For the best approach to get users either paginate or get all listing by below code in UsersController
public function index($type = null, Request $request)
{
$builder = User::where(/*query*/);
if($type == "paginate") {
$items = $builder->paginate(10);
} else {
$items = $builder->get();
}
return view("users.index", ['users' => $items]);
}
Here is the route in web.php/api.php file
Route::get('/{type?}', ['as' => 'users.index', 'uses' => 'UsersController#index']);
Here url will be
http://api.test/users/paginate // get pagination response.
http://api.test/users // get response without pagination
I think this will help you.

Exclude route from Slim CSRF middleware

I'm working on a Slim 3 based application with a Twig frontend and I'm also making a REST API.
I've implemented slimphp\Slim-Csrf for the entire app but I now want to exclude this CSRF check from every "API" routes.
I'm trying to implement the "Option 2" of this post :
Slim3 exclude route from CSRF Middleware
Here is the code :
File App\Middleware\CsrfMiddleware.php :
namespace App\Middleware;
class CsrfMiddleware extends \Slim\Csrf\Guard {
public function processRequest($request, $response, $next) {
// Check if this route is in the "Whitelist"
$route = $request->getAttribute('route');
if ($route->getName() == 'token') {
var_dump('! problem HERE, this middleware is executed after the CsrfMiddleware !');
// supposed to SKIP \Slim\Csrf\Guard
return $next($request, $response);
} else {
// supposed to execute \Slim\Csrf\Guard
return $this($request, $response, $next);
}
}
}
File app\app.php :
$app = new \Slim\App([
'settings' => [
'determineRouteBeforeAppMiddleware' => true
]
]);
require('container.php');
require('routes.php');
$app->add($container->csrf);
$app->add('csrf:processRequest');
File app\container.php :
$container['csrf'] = function ($container) {
return new App\Middleware\CsrfMiddleware;
};
File app\routes.php :
<?php
$app->get('/', \App\PagesControllers\LieuController::class.':home')->setName('home');
$app->post('/api/token', \App\ApiControllers\AuthController::class.'postToken')->setName('token');
When I do a POST request on http://localhost/slim3/public/api/token I've got :
Failed CSRF check!string(70) "! problem HERE, this middleware is executed after the CsrfMiddleware !"
Like if my CsrfMiddleware was executed after \Slim\Csrf\Guard...
Anyone has an idea ?
Thank you.
In Slim 3 the middleware is LIFO (last in first out).
Add the middleware in the opposite direction:
Before
$app->add($container->csrf);
$app->add('csrf:processRequest');
After
$app->add('csrf:processRequest');
$app->add($container->csrf);
Notice: The public directory should not be part of the url
Not correct: http://localhost/slim3/public/api/token
Correct: http://localhost/slim3/api/token
To skip the processing within the middleware, just return the $response object.
// supposed to SKIP \Slim\Csrf\Guard
return $response;
Here is how I achieved this with Slim 3.
1) Create a class that extends \Slim\Csrf\Guard as follows.
The CsrfGuardOverride class is key to enabling or disabling CSRF checking for a path. If the current path is whitelist'ed, then the __invoke() method just skips the core CSRF checking, and proceeds by executing the next middleware layer.
If the current path is not in the whitelist (i.e., CSRF should be checked), then the __invoke method defers to its parent \Slim\Csrf\Guard::__invoke() to handle CSRF in the normal manner.
<?php
namespace App\Middleware;
use Psr\Http\Message\ResponseInterface;
use Psr\Http\Message\ServerRequestInterface;
use \Slim\Csrf\Guard;
class CsrfGuardOverride extends Guard {
/**
* Invoke middleware
*
* #param ServerRequestInterface $request PSR7 request object
* #param ResponseInterface $response PSR7 response object
* #param callable $next Next middleware callable
*
* #return ResponseInterface PSR7 response object
*/
public function __invoke(ServerRequestInterface $request, ResponseInterface $response, callable $next)
{
// Set the name of the route we want whitelisted with a name
// prefix of 'whitelist'. check for that here, and add
// any path to the white list
$route = $request->getAttribute('route');
$routeName = $route->getName();
$whitelisted = strpos($routeName, 'whitelist');
// if url is whitelisted from being CSRF checked, then bypass checking by skipping directly to next middleware
if ($whitelisted !== FALSE) {
return $next($request, $response);
}
return parent::__invoke($request, $response, $next);
}
}
2) Register the CsrfGuardOverride class. Be sure to set settings.determineRouteBeforeAppMiddleware => true as this forces Slim to evaluate routes prior to executing any middleware.
// Method on App Class
protected function configureContainer(ContainerBuilder $builder)
{
parent::configureContainer($builder);
$definitions = [
'settings.displayErrorDetails' => true,
'settings.determineRouteBeforeAppMiddleware' => true,
// Cross-Site Request Forgery protection
\App\Middleware\CsrfGuardOverride::class => function (ContainerInterface $container) {
$guard = new \App\Middleware\CsrfGuardOverride;
$guard->setPersistentTokenMode(true); // allow same CSRF token for multiple ajax calls per session
return $guard;
},
'csrf' => DI\get(\App\Middleware\CsrfGuardOverride::class),
// add others here...
];
$builder->addDefinitions($definitions);
}
3) Add the path that you want to by bypass CSRF checking and give it a name with the prefix 'whitelist':
$app->post('/events/purchase', ['\App\Controllers\PurchaseController', 'purchaseCallback'])->setName('whitelist.events.purchase');

TokenMismatchException , despite excluding route

Im trying to create an img upload using ajax .
Im using the plugin https://github.com/Vinelab/mr-uploader ,and i'm getting CSRFTokenMismatchException .
Iv'e solved the issue before by adding the route to $execpet on verifyCsrf
class VerifyCsrfToken extends BaseVerifier
{
/**
* The URIs that should be excluded from CSRF verification.
*
* #var array
*/
protected $except = [
'/admin/upload'
];
}
Since solving the problem the first time i've reveted the whole project back to laravel 5 from laravel 5.1 (long story , i've had to do it )
now the problem appears agian .
when trying to send a post request to that route i get 'TokenMismatchException'.
Method 1: Disable CSRF Protection
Add the following code in VerifyCsrfToken.php
This route will ignored from checking csrf token..
public function handle($request, Closure $next)
{
//disable CSRF check on following routes
$skip = array(
'/admin/upload',
);
foreach ($skip as $key => $route) {
//skip csrf check on route
if($request->is($route)){
return parent::addCookieToResponse($request, $next($request));
}
}
return parent::handle($request, $next);
}
Method 2: Add CSRF TOKEN in ajax request
var token = "{{ csrf_token() }}";
$.ajax({
type : "POST",
url : "/admin/upload",
data : {_token:token},
});

JWT authentication in Laravel without database

I have a question regarding Authentication in Laravel 5.x. I’ve been specifically looking at tymondesigns/jwt-auth and irazasyed/jwt-auth-guard packages to do the JSON web token authentication token handling in my Laravel application.
I am not using a local database whatsoever, nor do I want to. I have environment variables set up in .env for my API’s URL, USERNAME & PASSWORD. The Guzzle PHP HTTP client is doing the trick just fine, connecting and returning data between the API and my application as needed.
However, I need to set up Authentication within my Laravel instance. I run into problems here, and the auth is wanting a DB connection.
$token = JWTAuth::attempt($credentials)
Here's the exception:
PDOException in Connector.php line 55:
SQLSTATE[HY000] [14] unable to open database file
How can I make use of JWT without using a database?
How can I COMPLETELY shut-off database connections within Laravel?
Thanks.
UPDATE:
Using tymon/jwt-auth, I've set things up within the routes, Kernel, Middleware, etc.
I created a "claim" successfully, but I need to create the token by encoding the "payload."
$this->username = $request->username;
$sub = $this->username;
$iat = time();
$jti = md5($sub . $iat);
$aud = env('APP_URL');
$this->claims = [
'sub' => $sub,
'iat' => $iat,
'exp' => time() + (2 * 7 * 24 * 60 * 60),
'nbf' => $iat,
'iss' => 'khill',
'jti' => $jti,
'aud' => $aud,
];
$payload = JWTFactory::make($this->claims);
How do I get the custom token?
You should define a custom Authentication Provider and set it in config/jwt.php.
Example of provider
Put this class anywhere you like.
namespace MyNamespace;
use Tymon\JWTAuth\Providers\Auth\AuthInterface;
class MyCustomAuthenticationProvider implements AuthInterface
{
public function byCredentials(array $credentials = [])
{
return $credentials['username'] == env('USERNAME') && $credentials['password'] == env('PASSWORD');
}
public function byId($id)
{
// maybe throw an expection?
}
public function user()
{
// you will have to implement this maybe.
}
}
Example of configuration
In the providers array in config/jwt.php, change this:
'auth' => 'Tymon\JWTAuth\Providers\Auth\IlluminateAuthAdapter',
to this:
'auth' => 'MyNamespace\MyCustomAuthenticationProvider',
Other considerations
Using the env() function anywhere is not good practice. It's better to use it in your config files, and then use the config() function anywhere else.
You may need to reimplement also the User Provider.
JWTAuth::attempt() won't help you with this, because it hits the database for you behind the scenes. You need some other way to check the environment credentials.
Add a custom method to a class somewhere which will do that for you or pass the credentials against the API you are hitting with Guzzle.
Code example:
public function authenticate($username, $password)
{
if(!$username === env('USERNAME') or !$password === env('PASSWORD')) {
// return a message that the user could not be authenticated or false.
}
// Generate the JWT token here and store it somewhere.
}
As a quick fix I decided to implement the following custom code...
1) Created custom middleware to handle the logic.
class CustomMiddleware
{
protected $loginPath = 'login';
public function handle($request, Closure $next) {
$logged_in = $request->session()->get('logged_in');
if (!$logged_in) {
return redirect()->guest('login')->with('flag','1');
}
return $next($request);
}
}
2) Added a reference to the middleware class.
class Kernel extends HttpKernel
{
protected $routeMiddleware = [
'custom' => \App\Http\Middleware\CustomMiddleware::class,
];
}
3) Added it to routes.php.
Route::group(['middleware' => ['custom']], function () {
// Add routes here
}
yes.
you can create jwt token without database using tymondesigns/jwt-auth package...
for that you have to use jwt::encode method...
let me explain ...
first you have to put your credential in .env file...
then i am recomending you to use custom claims ...
after that you can create jwt token using below code ...
$customClaims = ['foo' => 'bar', 'baz' => 'bob'];
$factory = JWTFactory::customClaims($customClaims);
$token = JWTAuth::encode($payload);
for further details you can refer below link
wiki

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