[CORE][ROUTES] Implemented custom router, with an interface similar to the old one, which allows routes to be seperated into files

config/routes.php

@@ -1,10 +1,7 @@
 <?php
 
-use App\Controller\NetworkPublic;
-
 use Symfony\Component\Routing\Loader\Configurator\RoutingConfigurator;
 
 return function (RoutingConfigurator $routes) {
-    $routes->add('network.public', '/main/all')
-           ->controller(NetworkPublic::class);
+    $routes->import('.', 'GNUsocial');
 };

config/services.yaml

@@ -15,7 +15,7 @@ services:
     # this creates a service per class whose id is the fully-qualified class name
     App\:
         resource: '../src/*'
-        exclude: '../src/{DependencyInjection,Entity,Migrations,Tests,Kernel.php}'
+        exclude: '../src/{DependencyInjection,Entity,Migrations,Tests,Kernel.php,Routes}'
 
     # controllers are imported separately to make sure services can be injected
     # as action arguments even if you don't extend any base controller class
@@ -23,8 +23,9 @@ services:
         resource: '../src/Controller'
         tags: ['controller.service_arguments']
 
-    # add more service definitions when explicit configuration is needed
-    # please note that last definitions always *replace* previous ones
+    App\Util\RouteLoader:
+        tags: ['routing.loader']
+
 
     # Wrapper arround Doctrine's StaticPHP metadata driver
     app.util.schemadef_driver:

src/Routes/Main.php

@@ -0,0 +1,13 @@
+<?php
+
+namespace App\Routes;
+
+use App\Util\RouteLoader;
+
+abstract class Main
+{
+    public static function load(RouteLoader $r): void
+    {
+        $r->connect('main_all', '/main/all', \App\Controller\NetworkPublic::class);
+    }
+}

src/Util/RouteLoader.php

@@ -0,0 +1,118 @@
+<?php
+
+// This file is part of GNU social - https://www.gnu.org/software/social
+//
+// GNU social is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// GNU social is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with GNU social.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Old URLMapper interface atop Symfony's router
+ *
+ * Converts a path into a set of parameters, and vice versa
+ *
+ * @package   GNUsocial
+ * @category  URL
+ *
+ * @author    Hugo Sales <hugo@fc.up.pt>
+ * @copyright 2020 Free Software Foundation, Inc http://www.fsf.org
+ * @license   https://www.gnu.org/licenses/agpl.html GNU AGPL v3 or later
+ */
+
+namespace App\Util;
+
+use Symfony\Component\Config\Loader\Loader;
+use Symfony\Component\Routing\Route;
+use Symfony\Component\Routing\RouteCollection;
+
+class RouteLoader extends Loader
+{
+    private RouteCollection $rc;
+
+    /**
+     * Route loading entry point, called from `config/routes.php`
+     *
+     * Must comform to symfony's interface, but the $resource is unused
+     * and $type must not be null
+     *
+     * @param mixed $resource
+     */
+    public function load($resource, string $type = null): RouteCollection
+    {
+        $this->rc = new RouteCollection();
+
+        $route_files = glob(INSTALLDIR . '/src/Routes/*.php');
+        foreach ($route_files as $file) {
+            require_once $file;
+            $ns = '\\App\\Routes\\' . basename($file, '.php');
+            $ns::load($this);
+        }
+
+        return $this->rc;
+    }
+
+    /**
+     * Connect a route to a controller
+     *
+     * @param mixed  $target  Some kind of callable, typically [object, method]
+     * @param ?array $options Possible keys are ['condition', 'defaults', 'format',
+     *                        'fragment', 'http-methods', 'locale', 'methods', 'schemes']
+     *                        'http-methods' and 'methods' are aliases
+     */
+    public function connect(string $id, string $uri_path, $target, ?array $param_reqs = [], ?array $options = [])
+    {
+        $this->rc->add($id,
+                       new Route(
+                           // path -- URI path
+                           $uri_path,
+                           // defaults = []     -- param default values,
+                           // and special configuration options
+                           array_merge(
+                               [
+                                   '_controller' => is_array($target) ? $target : [$target, '__invoke'],
+                                   '_format'     => $options['format']   ?? 'html',
+                                   '_fragment'   => $options['fragment'] ?? '',
+                                   '_locale'     => $options['locale']   ?? '',
+                               ],
+                               $options['defaults'] ?? []),
+                           // requirements = [] -- param => regex
+                           $param_reqs,
+                           // options = []      -- possible keys: compiler_class:, utf8
+                           // No need for a special compiler class for now,
+                           // Enforce UTF8
+                           ['utf8' => true],
+                           // host = ''         -- hostname (subdomain, for instance) to match,
+                           // we don't want this
+                           '',
+                           // schemes = []      -- URI schemes (https, ftp and such)
+                           $options['schemes'] ?? [],
+                           // methods = []      -- HTTP methods
+                           $options['http-methods'] ?? $options['methods'] ?? [],
+                           // condition = ''    -- Symfony condition expression,
+                           // see https://symfony.com/doc/current/routing.html#matching-expressions
+                           $options['condition'] ?? ''
+                       )
+        );
+    }
+
+    /**
+     * Whether this loader supports loading this route type
+     * Passed the arguments from the `RoutingConfigurator::import` call from
+     * `config/routes.php`
+     *
+     * @param mixed $resource Unused
+     */
+    public function supports($resource, string $type = null)
+    {
+        return 'GNUsocial' === $type;
+    }
+}