added a ssl fix for form in /auth/login

added a new filter: SslFixFilter
added SslFixFilter to auth route
added SslFixFilter to RoutingServiceProvider

app/routes/auth.php

@@ -4,6 +4,7 @@ Route::group(['before' => 'has_setting:app_name', 'namespace' => 'CachetHQ\Cache
     // Login routes
     Route::get('/auth/login', [
         'before' => 'guest',
+        'after'  => 'sslfix',
         'as'     => 'login',
         'uses'   => 'AuthController@showLogin',
     ]);

src/Http/After/SslFixFilter.php

@@ -0,0 +1,27 @@
+<?php
+
+namespace CachetHQ\Cachet\Http\After;
+
+use Illuminate\Http\Request;
+use Illuminate\Routing\Route;
+use Symfony\Component\HttpFoundation\Response;
+
+class SslFixFilter
+{
+    /**
+     * Run the SSL filter.
+     *
+     * @param \Illuminate\Routing\Route                  $route
+     * @param \Illuminate\Http\Request                   $request
+     * @param \Symfony\Component\HttpFoundation\Response $response
+     *
+     * @return \Symfony\Component\HttpFoundation\Response
+     */
+    public function filter(Route $route, Request $request, Response $response)
+    {
+        $output = $response->getOriginalContent();
+        $output = str_replace('action="http://', 'action="//', $output);
+
+        $response->setContent($output);
+    }
+}

src/Providers/RoutingServiceProvider.php

@@ -49,6 +49,7 @@ class RoutingServiceProvider extends ServiceProvider
         // Cachet's after filters
         $this->app->router->filter('allowed_domains', 'CachetHQ\Cachet\Http\After\AllowedDomainsFilter');
         $this->app->router->filter('cors', 'CachetHQ\Cachet\Http\After\CorsFilter');
+        $this->app->router->filter('sslfix', 'CachetHQ\Cachet\Http\After\SslFixFilter');
     }
 
     /**