[ticket/17363] Add web app manifest

PHPBB-17363

Signed-off-by: Matt Friedman <maf675@gmail.com>

phpBB/phpbb/manifest.php

@@ -0,0 +1,95 @@
+<?php
+/**
+ *
+ * This file is part of the phpBB Forum Software package.
+ *
+ * @copyright (c) phpBB Limited <https://www.phpbb.com>
+ * @license GNU General Public License, version 2 (GPL-2.0)
+ *
+ * For full copyright and license information, please see
+ * the docs/CREDITS.txt file.
+ *
+ */
+
+namespace phpbb;
+
+use phpbb\config\config;
+use phpbb\event\dispatcher_interface;
+use phpbb\exception\http_exception;
+use phpbb\language\language;
+use Symfony\Component\HttpFoundation\JsonResponse;
+use Symfony\Component\HttpFoundation\Response;
+
+class manifest
+{
+	/** @var config */
+	protected $config;
+
+	/** @var language */
+	protected $language;
+
+	/** @var path_helper */
+	protected $path_helper;
+
+	/** @var dispatcher_interface */
+	protected $phpbb_dispatcher;
+
+	/** @var user */
+	protected $user;
+
+	/**
+	 * Constructor for manifest controller
+	 *
+	 * @param config $config
+	 * @param language $language
+	 * @param path_helper $path_helper
+	 * @param dispatcher_interface $phpbb_dispatcher
+	 * @param user $user
+	 */
+	public function __construct(config $config, language $language, path_helper $path_helper, dispatcher_interface $phpbb_dispatcher, user $user)
+	{
+		$this->config = $config;
+		$this->path_helper = $path_helper;
+		$this->phpbb_dispatcher = $phpbb_dispatcher;
+		$this->language = $language;
+		$this->user = $user;
+	}
+
+	/**
+	 * Handle creation of a manifest json file for progressive web-app support
+	 *
+	 * @return JsonResponse
+	 */
+	public function handle(): JsonResponse
+	{
+		if ($this->user->data['is_bot'] || $this->user->data['user_type'] == USER_INACTIVE)
+		{
+			throw new http_exception(Response::HTTP_FORBIDDEN, 'NO_AUTH_OPERATION');
+		}
+
+		$board_path = $this->config['force_server_vars'] ? $this->config['script_path'] : $this->path_helper->get_web_root_path();
+
+		$manifest = [
+			'name'			=> $this->config['sitename'],
+			'short_name'	=> $this->config['sitename_short'] ?: substr($this->config['sitename'], 0, 12),
+			'display'		=> 'standalone',
+			'orientation'	=> 'portrait',
+			'dir'			=> $this->language->lang('DIRECTION'),
+			'start_url'		=> $board_path,
+			'scope'			=> $board_path,
+		];
+
+		/**
+		 * Event to modify manifest data before it is outputted
+		 *
+		 * @event core.modify_manifest
+		 * @var	array	manifest	Array of config values to display and process
+		 * @var	string	board_path	Mode of the config page we are displaying
+		 * @since 4.0.0-a1
+		 */
+		$vars = array('manifest', 'board_path');
+		extract($this->phpbb_dispatcher->trigger_event('core.modify_manifest', compact($vars)));
+
+		return new JsonResponse($manifest);
+	}
+}