How to catch any link that came from upload/ in laravel 5? - laravel

im new in laravel 5.2, I just want to ask how you can catch a link that came from uploads like: http://sitename.com/uploads/59128.txt? I want to redirect them to login page if they tried to access any of route or link that came from uploads/{any filename}.

Yes you can achieve by protecting your route with auth middleware,
make a small FileController
class FileController extends Controller {
public function __construct()
{
$this->middleware('auth');
}
public function getFile($filename)
{
return response()->download(storage_path($filename), null, [], null);
}
}
and then in routes.php
Route::get('file/{filename}', 'FileController#getFile')->where('filename', '^[^/]+$');
And that's it. Now, your authenticated users can download files from storage folder (but not its subfolders) by calling http://yoursite.com/file/secret.jpg. Add you can use this URL in src attribute of an image tag.
answer's original source!

#xerwudjohn simple you can't.
When this file is in the public folder, everyone can access it whitout being logged in.
One method I tried for some minutes, create a new route:
Route::group(['middleware' => ['web', 'auth']], function () {
Route::get('/download/{id}', 'DownloadController#showFile');
});
create the function showFile in the DonwloadController
public function showFile($id)
{
return redirect('/image/'.$id.'.txt');
}
or use a Model to read uniqueIds out of any table and get the realfile name.
Cheers

Related

Create generic route-based authorization in Laravel

I'm coming from conventional PHP background and trying to create my first big project in Laravel.
I usually user User/Role/Permission to manage user permissions in my applications. It works like follows:
User has many Roles
Role has many Permissions
to make things simple, I actually used the page names as permissions, so that I check the current page name against user permissions.
That was all easy in PHP, now I am trying to implement a similar approach in Laravel. I have User, Role, Permission models, and I check if user has permission using a method in User model as follows (inspired from a Laracasts tutorial):
public function permissions()
{
return $this->roles->map->permissions->flatten()->pluck('name')->unique();
}
And in my AuthServiceProvider I added the following code:
Gate::before(function ($user, $permission){
return $user->permissions()->contains($permission);
});
So if I add some permission (for example 'add_user') to the user, I can simply do the following in the route, and it works just fine:
Route::get('/test', function () {
return 'You are authorized';
})->name('add_user')->middleware('can:add_user');
Now since I have a lot of pages, I wouldn't like to pass specific permission name to the middleware, rather find a better and more generic way.
The only way I could come up with is to use the permission name same as the route name, and create a new middleware to take care of authorization.
So In my solution I added the following middleware class:
class BeforeMiddleware
{
public function handle($request, Closure $next)
{
$route_name = $request->route()->getName();
if(!Auth::user()->permissions()->contains($route_name)) {
throw new \Exception('Not Authorized');
}
return $next($request);
}
}
Added it to Kernel.php:
protected $routeMiddleware = [
'before' => \App\Http\Middleware\BeforeMiddleware::class,
...
];
And finally changed the route to be as follows:
Route::middleware(['before'])->group(function () {
Route::get('/test', function () {
return 'You are authorized';
})->name('add_user');
});
This way I don't actually have to pass the permission name when I check the permission, and directly get it from the route name.
I have many questions about my solution: is it really a good approach? Does it have any drawbacks? Is there a better approach?
Also I preferred to use AuthServiceProvider instead of the new middleware, but I couldn't retrieve the route name from ServiceProvider scope. Can I somehow use AuthServiceProvider for a similar case?
Sorry if I made the post somehow long, but I needed to be as clear as I could.

Laravel: What are functions in routes doing?

Can anyone tell why the documentation of Laravel, and others, show functions in routes that return / do something? In what context can you use this?
For example, I try to figure out Molly Connect.
Here is the corresponding code from https://github.com/mollie/laravel-mollie/blob/master/docs/mollie_connect.md
Route::get('login', function () {
return Socialite::with('mollie')
->scopes(['profiles.read']) // Additional permission: profiles.read
->redirect();
});
Route::get('login_callback', function () {
$user = Socialite::with('mollie')->user();
Mollie::api()->setAccessToken($user->token);
return Mollie::api()->profiles()->page(); // Retrieve payment profiles available on the obtained Mollie account
});
Its just a shortcut, to avoid having to create separate controller files and indirectly referencing those functions. Functionally, your example is no different from doing this:
Route::get('login_callback', 'LoginController#callback')
And then, LoginController.php
class LoginController
{
public function callback()
{
$user = Socialite::with('mollie')->user();
Mollie::api()->setAccessToken($user->token);
return Mollie::api()->profiles()->page();
}
}
See here

Laravel nova - redirect from Dashboard

I would like to remove dashboard from my Laravel Nova app.
I found it easy to remove it from sidebar-menu - simply comment /views/dashboard/navigation.blade.php code.
However, I want to add a redirection logic (landing page depends on user role) so when navigating to / user will be redirected to a resource or tool which corresponds him.
(I have already implemented a redirection after login (https://stackoverflow.com/a/54345123/1039488)
I tried to do it with cards, but looks like this is not the right solution.
Any idea where can I place the redirection logic?
Nova 4; You can override the initialPath like so:
class NovaServiceProvider extends NovaApplicationServiceProvider
{
/**
* Bootstrap any application services.
*
* #return void
*/
public function boot()
{
parent::boot();
Nova::initialPath('/resources/users');
}
// ...
}
This way, you get redirected to the Users resource upon logging in.
Pre nova 4 method:
To NovaServiceProvider.php add to boot method:
Nova::script('menuFix', __DIR__.'/../../resources/js/fixMenu.js');
Create file fixMenu.js with following:
if (location.pathname == '/' || location.pathname == '/dashboards/main'){
location.href = '/whereToRedirect'
}
A cleaner and safe way for Nova 3.x or below:
Copy vendor/laravel/nova/resources/views/layout.blade.php to resources/views/vendor/nova/
Now open resources/views/vendor/nova/layout.blade.php and edit it
Replace this line with the code below window.Nova = new CreateNova(config);
window.Nova = new CreateNova(config);
window.Nova.booting((Vue, router, store) => {
/** This fixes showing an empty dashboard. */
router.beforeEach((to, from, next) => {
if (to.name === 'dashboard.custom') {
next({ name: 'index', params: { resourceName: 'users'}});
}
next();
});
});
Replace users with your entity name's plural like products
Now save the file and refresh the nova dashboard and you should see the new page.
The solution was taken from here with clear steps.
The solution may also work for 4.x, but I haven't checked it yet.
Happy Coding :)
Just figured this out myself. In your Routes/web.php file, add a redirect route:
Route::redirect('/','/resources/{resource_name}');
where {resource_name} is the plural form of the resource. For example, '/resources/posts'.
In your case, you may want to redirect to your own control file, where the redirect logic can be placed.
Route::get('/', 'YourController#rootRedirectLogic');
Then in the controller YourController, add the method:
public function rootRedirectLogic(Request $request) {
// some logic here
return redirect()->route('YourRoute');
}
where 'YourRoute' is the name of the route you want to send the user to.
(Found clues to this solution in a comment by dillingham here: https://github.com/laravel/nova-issues/issues/393)
i came across this link : Laravel Nova - Point Nova path to resource page
Not sure it's a permanent solution but editing LoginController.php will do.
public function redirectPath()
{
return Nova::path().'/resources/***<resource_name>***;
}
**change to your own resource name

How do I access a global model instance in laravel 4?

In Laravel 4, how do I create an instance of a model and make it globally available? Even in views. I'm looking to do something similar to the way you get the User instance using Auth::User->name (the syntax I mean, not storing in a session) but in this case it would be ModelName::DefaultEntity->attribute.
A little more detail...
I am writing an application that will house multiple websites - a bit like a CMS. So I have a Website model. Each Website model will have a URL attribute so that when a user visits the URL the application can retrieve the Website model from the database and brand the website appropriately e.g. Title, logo, theme, etc...
I would like the current Website model to be available everywhere without having to create a new instance of Website in every controller/method. So in my layouts and views I could just say something like:
{{ Website::Website()->name }}
or
{{ CurrentWebsite::name }}
I have achieved the first one by making a static method in the Website model:
public static function current()
{
return Website::find(1); // just to test it for now
}
But with that, it will have to do a database query every time I say:
{{ Website::current()->name }}
Plus it doesn't feel right.
Can anyone help?
Kind regards,
Robin
You probably are looking for 'a shared container bind'. See the docs here.
<?php
App::singleton('foo', function()
{
return Website::whereCode('whoop')->first();
});
App::make('foo'); // every where you need it
Create normal class. Like CurrentWebsite or Website or whatever.
class Website {
public function a() {
//your code
}
}
Create facade (WebsiteFacade.php)
use Illuminate\Support\Facades\Facade;
class WebsiteFacade extends Facade {
protected static function getFacadeAccessor() { return 'website'; }
}
Create Service Provider
use Illuminate\Support\ServiceProvider;
class WebsiteServiceProvider extends ServiceProvider {
public function register()
{
$this->app->bind('website', function()
{
return new Website();
});
}
}
4.Go to your config/app.php and add folowing:
'providers' => array(
'WebsiteServiceProvider'
)
and
'aliases' => array(
'WebsiteFacade'
)
5.Refrech auto loader. And Now you can access Website class anywhere like this:
Website::a();
What you already have is good, but if you just want prevent that query from executing every time, you can cache it:
public static function current()
{
return Website::remember(10)->find(1); // just to test it for now
}
Adding a listener to your routes.php:
DB::listen(function($sql, $bindings, $time) { var_dump($sql); var_dump($bindings); });
And executing it:
{{ Website::current()->name }}
Will show the query in the first execution but not in the second, because it's cached.

Codeigniter Controller URI routing problems

I encounter problems when I call the method of a controller. By the way, this controller is routed.
Routes
$route['admin/company'] ='company';
Controller
class Company extends CI_controller {
public function __construct() {
parent::__construct();
session_start();
/** Check if user is logged in */
if ($this->session->userdata('user') != "") {
$this->load->model('my_model');
if ( $this->uri->segment(1) != "admin" ) {
redirect('admin/company/'.$this->uri->segment(2));
}
} else redirect('/');
}
public function index() { Some coding here............ }
public function addnew() { Some coding here...........}
public function process() { Some coding here...... }
}
When I call "localhost/company", it works fine and redirects me to "localhost/admin/company which is great. But, when I try to call the method of it, it displays a 404 error message.
Example: When I go to link: localhost/admin/company/addnew
Did lack something in routes? or in controller? or anything else?
Thanks,
James
If appropriate for all use cases, use a simple catch-all rule in routes.php:
$route['admin/company/(.+)$'] = "company/$1";
You will have to add a route for each function in your controller.
$route['admin/company/addNew'] ='company/addNew';
$route['admin/company/process'] ='company/process';
It's very annoying. Better, create a folder "admin" inside your "controllers" folder. Put the controller on the folder. Thus you can access your controller with the URL "localhost/admin/company" and all the methods without rerouting.
If it doesn't work at first, create a controller inside "admin" folder with the same name you'll find in your routes file (default_controller).
create a admin directory and add $route["company"]="admin/company"

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