Why is the route not recognized by Silex when there is a "/" bar at the end of the requested url?

Question

I’m starting my MVC studies with Silex today, but I’m having a hard time creating routes by accessing addresses containing a bar at the end. Example:

http://site.com.br/home/

I already got access to url only on the path http://site.com.br/home.

Is there any way to access the same content by accessing both urls? Follow the code I’m using:

require_once "vendor/autoload.php";

$app = new Silex\Application();
$app['debug'] = true;

$app->get('/home', function(){
    return  "Você acessou a sua HOME";
});

$app->run();

Answer 1

Actually, that seems to be a known problem between users of the Symfony.

I use a framework called Laravel that seems to know this bar problem well at the end of the url.

Using the HTACCESS

The correction for this can be made in the configuration of .htaccess where, if the accessed url has a bar / at the end, it is redirected to url without the bar at the end.

Behold:

# Remove a barra do final se não for uma pasta
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^(.*)/$ /$1 [L,R=301]

I believe that this should be enough for its application to work properly.

There is one small detail that should be noted regarding this: When you submit a request of type POST, the redirection will not take with it the data sent, since the redirection takes place in GET.

Modifying REQUEST_URI

For those who don’t know, Silex requests use the library internally Symfony Http Foundation. By the method Request::createFromGlobals() all request data is captured via superglobal variables ($_GET, $_POST, $_SERVER, etc....).

You can easily fix this problem by placing before the stretch where you call $app->run() the following code:

$_SERVER['REQUEST_URI'] = preg_replace('|/$|', '', $_SERVER['REQUEST_URI'], 1);

Manipulating the property server class Symfony\Component\HttpFoundation\Request

After running some tests with Silex, I came to the conclusion that the most organized way to solve the problem is by making a small change in the call to $app->run().

You will need to instantiate Request, make a small modification and pass it as instance of $app->run().

Behold:

$request = Request::createFromGlobals();

$request->server->set('REQUEST_URI', rtrim($request->server->get('REQUEST_URI'), "/"));

$app->run($request);

I preferred this last form since you do not change the value of the super global variable $_SERVER.

References:

Your problem is also described in Stackoverflow, in How to make route "/" ending optional

Answer 2

This is an expected behavior of the Symfony route component https://github.com/silexphp/Silex/issues/149.

However, there is a page in their documentation that explains how to create a redirect control:

http://symfony.com/doc/current/cookbook/routing/redirect_trailing_slash.html

Remember to put this route as the last route to run (if there is no error risk).