如何使用f3 beforeroute（）检查登录用户，重定向到登录名然后返回原始路由？

Question

I'm trying to use fat free framework in my application. beforeroute() seems like a logical choice for checking for an active session, if all routes on this path require authentication. I am having trouble trying to find which route the user was attempting to go to before I hijack it and force them to login. I feel like there should be an f3 variable, or something simple that I can call within beforeroute() that'll give me information about where they were trying to go, and that I should be able to use f3 to accomplish this, instead of other ways I've done this in php apps (session variable, or sending something as a param in the domain, etc).

Am I missing something about beforeroute()? Should it not be used for this situation? And if not, what is the best practice?

I've tried grabbing the url in a session variable $f3->set('SESSION.previousUrl', $f3->REALM), but since I am always redirecting them to login, the result is always /login.

While I'm at it, can somebody explain the difference between reroute and redirect within f3? Thanks in advance.

Answer 1

Just pass the origin URL to the login route. Eg:

function beforeRoute($f3,$params) {
  if (/*user not authenticated*/)
    $f3->reroute('/login?origin='.$f3->PATH);
    // or if you need to preserve query strings:
    $f3->reroute('/login?origin='.urlencode($f3->PATH.($f3->QUERY?'?'.$f3->QUERY:'')));
}

Now in your login route, if the user authenticates correctly, reroute it back to the origin URL:

function post($f3,$params) {
  if (/*user gets authenticated*/) {
    $f3->reroute(isset($_GET['origin'])?$_GET['origin']:'/');
  }
}

As for the redirect method, it's a mix between route and reroute .

For example, $f3->redirect('GET /oldpage','/newpage',TRUE) is a shorthand for:

$f3->route('GET /oldpage',function($f3){
  $f3->reroute('/newpage',TRUE);
});

It's mostly interesting to be used in configuration files, such as:

[redirects]
GET /oldpage = /newpage