snipe-it/app/Http/Middleware/CheckForTwoFactor.php

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<?php
namespace App\Http\Middleware;
use App\Models\Setting;
use Auth;
use Closure;
class CheckForTwoFactor
{
/**
* Routes to ignore for Two Factor Auth
*/
public const IGNORE_ROUTES = ['two-factor', 'two-factor-enroll', 'setup', 'logout'];
/**
* Handle an incoming request.
*
* @param \Illuminate\Http\Request $request
* @param \Closure $next
*
* @return mixed
*/
public function handle($request, Closure $next)
{
// Skip the logic if the user is on the two factor pages or the setup pages
// TODO - what we have below only works because our ROUTE uri's look _exactly_ like the route *names*.
// The problem is that, in the new(-ish) Laravel routing system, the route-name doesn't match if the route _verb_ is wrong.
// so we can have a blade that POST's to a route('two-factor') - but that route *name* is only matched when the method is GET
// because we attached the name to the GET, not to the POST (as route names *SHOULD* be unique in Laravel)
// there has got to be a better way to do this, but this is the best I could come up with for now.
if (in_array($request->route()->getName(), self::IGNORE_ROUTES) || in_array($request->route()->uri(), self::IGNORE_ROUTES)) {
return $next($request);
}
// Two-factor is enabled (either optional or required)
if ($settings = Setting::getSettings()) {
if (Auth::check() && ($settings->two_factor_enabled != '')) {
// This user is already 2fa-authed
if ($request->session()->get('2fa_authed')==Auth::user()->id) {
return $next($request);
}
// Two-factor is optional and the user has NOT opted in, let them through
if (($settings->two_factor_enabled == '1') && (Auth::user()->two_factor_optin != '1')) {
return $next($request);
}
// Otherwise make sure they're enrolled and show them the 2FA code screen
if ((Auth::user()->two_factor_secret != '') && (Auth::user()->two_factor_enrolled == '1')) {
return redirect()->route('two-factor')->with('info', 'Please enter your two-factor authentication code.');
}
return redirect()->route('two-factor-enroll')->with('success', 'Please enroll a device in two-factor authentication.');
}
}
return $next($request);
}
}