Add BaseVoter and Authorization Service Provider

PLUG-112

lib/Alchemy/Phrasea/Authorization/AuthorizationServiceProvider.php

@@ -0,0 +1,52 @@
+<?php
+/*
+ * This file is part of Phraseanet
+ *
+ * (c) 2005-2015 Alchemy
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+namespace Alchemy\Phrasea\Authorization;
+
+use Alchemy\Phrasea\Application as PhraseaApplication;
+use Silex\Application;
+use Silex\ServiceProviderInterface;
+use Symfony\Component\Security\Core\Authentication\Token\AnonymousToken;
+use Symfony\Component\Security\Core\Authentication\Token\PreAuthenticatedToken;
+use Symfony\Component\Security\Core\Authorization\AccessDecisionManager;
+
+class AuthorizationServiceProvider implements ServiceProviderInterface
+{
+    public function register(Application $app)
+    {
+        $app['phraseanet.security_token'] = $app->share(function (PhraseaApplication $app) {
+            $user = $app['authentication']->getUser();
+
+            if ($user instanceof \User_Adapter) {
+                return new PreAuthenticatedToken((string)$user->get_id(), null, 'fake', ['ROLE_USER']);
+            }
+
+            return new AnonymousToken('fake', 'anon.', []);
+        });
+
+        $app['phraseanet.access_manager'] = $app->share(function (PhraseaApplication $app) {
+            return new AccessDecisionManager($app['phraseanet.voters']);
+        });
+        $app['phraseanet.voters'] = $app->share(function () {
+            return [];
+        });
+
+        $app['phraseanet.authorization_checker'] = $app->share(function (PhraseaApplication $app) {
+            return new AuthorizationChecker(
+                $app['phraseanet.access_manager'],
+                $app['phraseanet.security_token']
+            );
+        });
+    }
+
+    public function boot(Application $app)
+    {
+        // Nothing to do
+    }
+}