Make ccache check safer (#93)

app/Support/Providers/AppServiceProvider.php

@@ -9,8 +9,6 @@
 use AMRCFactoryPlus\ServiceClient;
 use App\Exceptions\ReauthenticationRequiredException;
 use Illuminate\Contracts\Foundation\Application;
-use Illuminate\Support\Facades\Auth;
-use Illuminate\Support\Facades\Http;
 use Illuminate\Support\ServiceProvider;
 
 class AppServiceProvider extends ServiceProvider
@@ -22,18 +20,16 @@ class AppServiceProvider extends ServiceProvider
      */
     public function register()
     {
-
         $this->app->singletonIf(ServiceClient::class, function (Application $app) {
-
             $ccache = new \KRB5CCache;
 
-            // If the user is logged in then get their ccache
-            // and use that for all future requests
-            $ccache->open("FILE:/app/storage/".auth()->user()->username . '.ccache');
-
             // If the ccache has expired then re-authenticate by ending the session
             // and showing the login modal
             try {
+                // If the user is logged in then get their ccache
+                // and use that for all future requests
+                $ccache->open("FILE:/app/storage/" . auth()->user()->username . '.ccache');
+
                 $ccache->isValid();
             } catch (\Exception $e) {
                 // Throw a 'ReauthenticationRequiredException' to show the login dialog