Use power of symfony binary file response

Add commands

Fix typo

Remove extra line

lib/Alchemy/Phrasea/Core/Event/Subscriber/XSendFileSuscriber.php

@@ -0,0 +1,43 @@
+<?php
+
+/*
+ * This file is part of Phraseanet
+ *
+ * (c) 2005-2013 Alchemy
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Alchemy\Phrasea\Core\Event\Subscriber;
+
+use Silex\Application;
+use Symfony\Component\HttpKernel\KernelEvents;
+use Symfony\Component\EventDispatcher\EventSubscriberInterface;
+use Symfony\Component\HttpKernel\Event\GetResponseEvent;
+
+class XSendFileSubscriber implements EventSubscriberInterface
+{
+    private $app;
+
+    public function __construct(Application $app)
+    {
+        $this->app = $app;
+    }
+
+    public static function getSubscribedEvents()
+    {
+        return array(
+            KernelEvents::REQUEST => array('applyHeaders', 16),
+        );
+    }
+
+    public function applyHeaders(GetResponseEvent $event)
+    {
+        if ($this->app['phraseanet.configuration']['xsendfile']['enable']) {
+            $request = $event->getRequest();
+            $request->headers->set('X-Sendfile-Type', 'X-Accel-Redirect');
+            $request->headers->set('X-Accel-Mapping', (string) $this->app['phraseanet.xsendfile-mapping']);
+        }
+    }
+}

lib/Alchemy/Phrasea/Core/Provider/XSendFileMappingServiceProvider.php

@@ -0,0 +1,47 @@
+<?php
+
+/*
+ * This file is part of Phraseanet
+ *
+ * (c) 2005-2013 Alchemy
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Alchemy\Phrasea\Core\Provider;
+
+use Alchemy\Phrasea\XSendFile\Mapping;
+use Alchemy\Phrasea\Exception\InvalidArgumentException;
+use Silex\Application;
+use Silex\ServiceProviderInterface;
+
+class XSendFileMappingServiceProvider implements ServiceProviderInterface
+{
+    public function register(Application $app)
+    {
+        if (!isset($app['xsendfile.mapping'])) {
+            $app['xsendfile.mapping'] = array();
+        }
+
+        if (!is_array($app['xsendfile.mapping'])) {
+            throw new InvalidArgumentException('XSendFile mapping must be an array');
+        }
+
+        $app['phraseanet.xsendfile-mapping'] = $app->share(function($app) {
+            $mapping = array();
+            foreach($app['xsendfile.mapping'] as $path => $mountPoint) {
+                $mapping[] = array(
+                    'directory' => $path,
+                    'mount-point' => $mountPoint,
+                );
+            }
+
+            return Mapping::create($app, $mapping);
+        });
+    }
+
+    public function boot(Application $app)
+    {
+    }
+}