mirror of
https://github.com/phpbb/phpbb.git
synced 2025-10-26 13:16:14 +01:00
325 lines
9.7 KiB
PHP
325 lines
9.7 KiB
PHP
<?php
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/**
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*
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* This file is part of the phpBB Forum Software package.
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*
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* @copyright (c) phpBB Limited <https://www.phpbb.com>
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* @license GNU General Public License, version 2 (GPL-2.0)
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*
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* For full copyright and license information, please see
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* the docs/CREDITS.txt file.
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*
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*/
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/**
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* @ignore
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*/
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define('IN_PHPBB', true);
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$phpbb_root_path = (defined('PHPBB_ROOT_PATH')) ? PHPBB_ROOT_PATH : './../';
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$phpEx = substr(strrchr(__FILE__, '.'), 1);
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// Thank you sun.
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if (isset($_SERVER['CONTENT_TYPE']))
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{
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if ($_SERVER['CONTENT_TYPE'] === 'application/x-java-archive')
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{
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exit;
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}
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}
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else if (isset($_SERVER['HTTP_USER_AGENT']) && strpos($_SERVER['HTTP_USER_AGENT'], 'Java') !== false)
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{
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exit;
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}
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if (isset($_GET['avatar']))
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{
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require($phpbb_root_path . 'includes/startup.' . $phpEx);
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require($phpbb_root_path . 'phpbb/class_loader.' . $phpEx);
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$phpbb_class_loader = new \phpbb\class_loader('phpbb\\', "{$phpbb_root_path}phpbb/", $phpEx);
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$phpbb_class_loader->register();
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$phpbb_config_php_file = new \phpbb\config_php_file($phpbb_root_path, $phpEx);
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extract($phpbb_config_php_file->get_all());
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if (!defined('PHPBB_ENVIRONMENT'))
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{
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@define('PHPBB_ENVIRONMENT', 'production');
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}
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if (!defined('PHPBB_INSTALLED') || empty($dbms) || empty($acm_type))
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{
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exit;
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}
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require($phpbb_root_path . 'includes/constants.' . $phpEx);
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require($phpbb_root_path . 'includes/functions.' . $phpEx);
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require($phpbb_root_path . 'includes/functions_download' . '.' . $phpEx);
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require($phpbb_root_path . 'includes/utf/utf_tools.' . $phpEx);
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// Setup class loader first
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$phpbb_class_loader_ext = new \phpbb\class_loader('\\', "{$phpbb_root_path}ext/", $phpEx);
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$phpbb_class_loader_ext->register();
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// Set up container
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$phpbb_container_builder = new \phpbb\di\container_builder($phpbb_root_path, $phpEx);
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$phpbb_container = $phpbb_container_builder->with_config($phpbb_config_php_file)->get_container();
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$phpbb_class_loader->set_cache($phpbb_container->get('cache.driver'));
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$phpbb_class_loader_ext->set_cache($phpbb_container->get('cache.driver'));
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// set up caching
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/* @var $cache \phpbb\cache\service */
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$cache = $phpbb_container->get('cache');
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/* @var $phpbb_dispatcher \phpbb\event\dispatcher */
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$phpbb_dispatcher = $phpbb_container->get('dispatcher');
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/* @var $request \phpbb\request\request_interface */
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$request = $phpbb_container->get('request');
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/* @var $db \phpbb\db\driver\driver_interface */
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$db = $phpbb_container->get('dbal.conn');
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/* @var $phpbb_log \phpbb\log\log_interface */
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$phpbb_log = $phpbb_container->get('log');
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unset($dbpasswd);
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/* @var $config \phpbb\config\config */
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$config = $phpbb_container->get('config');
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// load extensions
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/* @var $phpbb_extension_manager \phpbb\extension\manager */
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$phpbb_extension_manager = $phpbb_container->get('ext.manager');
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// worst-case default
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$browser = strtolower($request->header('User-Agent', 'msie 6.0'));
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/* @var $phpbb_avatar_manager \phpbb\avatar\manager */
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$phpbb_avatar_manager = $phpbb_container->get('avatar.manager');
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$filename = $request->variable('avatar', '');
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$avatar_group = false;
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$exit = false;
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if (isset($filename[0]) && $filename[0] === 'g')
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{
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$avatar_group = true;
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$filename = substr($filename, 1);
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}
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// '==' is not a bug - . as the first char is as bad as no dot at all
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if (strpos($filename, '.') == false)
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{
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send_status_line(403, 'Forbidden');
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$exit = true;
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}
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if (!$exit)
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{
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$ext = substr(strrchr($filename, '.'), 1);
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$stamp = (int) substr(stristr($filename, '_'), 1);
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$filename = (int) $filename;
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$exit = set_modified_headers($stamp, $browser);
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}
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if (!$exit && !in_array($ext, array('png', 'gif', 'jpg', 'jpeg')))
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{
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// no way such an avatar could exist. They are not following the rules, stop the show.
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send_status_line(403, 'Forbidden');
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$exit = true;
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}
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if (!$exit)
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{
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if (!$filename)
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{
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// no way such an avatar could exist. They are not following the rules, stop the show.
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send_status_line(403, 'Forbidden');
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}
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else
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{
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send_avatar_to_browser(($avatar_group ? 'g' : '') . $filename . '.' . $ext, $browser);
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}
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}
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file_gc();
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}
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// implicit else: we are not in avatar mode
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include($phpbb_root_path . 'common.' . $phpEx);
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require($phpbb_root_path . 'includes/functions_download' . '.' . $phpEx);
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$attach_id = $request->variable('id', 0);
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$mode = $request->variable('mode', '');
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$thumbnail = $request->variable('t', false);
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// Start session management, do not update session page.
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$user->session_begin(false);
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$auth->acl($user->data);
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$user->setup('viewtopic');
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if (!$config['allow_attachments'] && !$config['allow_pm_attach'])
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{
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send_status_line(404, 'Not Found');
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trigger_error('ATTACHMENT_FUNCTIONALITY_DISABLED');
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}
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if (!$attach_id)
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{
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send_status_line(404, 'Not Found');
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trigger_error('NO_ATTACHMENT_SELECTED');
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}
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$sql = 'SELECT attach_id, post_msg_id, topic_id, in_message, poster_id, is_orphan, physical_filename, real_filename, extension, mimetype, filesize, filetime
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FROM ' . ATTACHMENTS_TABLE . "
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WHERE attach_id = $attach_id";
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$result = $db->sql_query($sql);
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$attachment = $db->sql_fetchrow($result);
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$db->sql_freeresult($result);
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if (!$attachment)
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{
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send_status_line(404, 'Not Found');
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trigger_error('ERROR_NO_ATTACHMENT');
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}
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else if (!download_allowed())
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{
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send_status_line(403, 'Forbidden');
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trigger_error($user->lang['LINKAGE_FORBIDDEN']);
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}
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else
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{
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$attachment['physical_filename'] = utf8_basename($attachment['physical_filename']);
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if (!$attachment['in_message'] && !$config['allow_attachments'] || $attachment['in_message'] && !$config['allow_pm_attach'])
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{
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send_status_line(404, 'Not Found');
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trigger_error('ATTACHMENT_FUNCTIONALITY_DISABLED');
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}
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if ($attachment['is_orphan'])
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{
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// We allow admins having attachment permissions to see orphan attachments...
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$own_attachment = ($auth->acl_get('a_attach') || $attachment['poster_id'] == $user->data['user_id']) ? true : false;
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if (!$own_attachment || ($attachment['in_message'] && !$auth->acl_get('u_pm_download')) || (!$attachment['in_message'] && !$auth->acl_get('u_download')))
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{
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send_status_line(404, 'Not Found');
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trigger_error('ERROR_NO_ATTACHMENT');
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}
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// Obtain all extensions...
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$extensions = $cache->obtain_attach_extensions(true);
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}
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else
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{
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if (!$attachment['in_message'])
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{
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phpbb_download_handle_forum_auth($db, $auth, $attachment['topic_id']);
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$sql = 'SELECT forum_id, post_visibility
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FROM ' . POSTS_TABLE . '
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WHERE post_id = ' . (int) $attachment['post_msg_id'];
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$result = $db->sql_query($sql);
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$post_row = $db->sql_fetchrow($result);
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$db->sql_freeresult($result);
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if (!$post_row || ($post_row['post_visibility'] != ITEM_APPROVED && !$auth->acl_get('m_approve', $post_row['forum_id'])))
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{
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// Attachment of a soft deleted post and the user is not allowed to see the post
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send_status_line(404, 'Not Found');
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trigger_error('ERROR_NO_ATTACHMENT');
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}
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}
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else
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{
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// Attachment is in a private message.
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$post_row = array('forum_id' => false);
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phpbb_download_handle_pm_auth($db, $auth, $user->data['user_id'], $attachment['post_msg_id']);
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}
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$extensions = array();
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if (!extension_allowed($post_row['forum_id'], $attachment['extension'], $extensions))
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{
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send_status_line(403, 'Forbidden');
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trigger_error(sprintf($user->lang['EXTENSION_DISABLED_AFTER_POSTING'], $attachment['extension']));
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}
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}
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$download_mode = (int) $extensions[$attachment['extension']]['download_mode'];
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$display_cat = $extensions[$attachment['extension']]['display_cat'];
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if (($display_cat == ATTACHMENT_CATEGORY_IMAGE || $display_cat == ATTACHMENT_CATEGORY_THUMB) && !$user->optionget('viewimg'))
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{
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$display_cat = ATTACHMENT_CATEGORY_NONE;
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}
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if ($display_cat == ATTACHMENT_CATEGORY_FLASH && !$user->optionget('viewflash'))
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{
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$display_cat = ATTACHMENT_CATEGORY_NONE;
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}
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/**
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* Event to modify data before sending file to browser
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*
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* @event core.download_file_send_to_browser_before
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* @var int attach_id The attachment ID
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* @var array attachment Array with attachment data
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* @var int display_cat Attachment category
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* @var int download_mode File extension specific download mode
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* @var array extensions Array with file extensions data
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* @var string mode Download mode
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* @var bool thumbnail Flag indicating if the file is a thumbnail
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* @since 3.1.6-RC1
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* @changed 3.1.7-RC1 Fixing wrong name of a variable (replacing "extension" by "extensions")
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*/
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$vars = array(
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'attach_id',
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'attachment',
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'display_cat',
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'download_mode',
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'extensions',
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'mode',
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'thumbnail',
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);
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extract($phpbb_dispatcher->trigger_event('core.download_file_send_to_browser_before', compact($vars)));
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if ($thumbnail)
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{
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$attachment['physical_filename'] = 'thumb_' . $attachment['physical_filename'];
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}
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else if ($display_cat == ATTACHMENT_CATEGORY_NONE && !$attachment['is_orphan'] && !phpbb_http_byte_range($attachment['filesize']))
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{
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// Update download count
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phpbb_increment_downloads($db, $attachment['attach_id']);
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}
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if ($display_cat == ATTACHMENT_CATEGORY_IMAGE && $mode === 'view' && (strpos($attachment['mimetype'], 'image') === 0) && (strpos(strtolower($user->browser), 'msie') !== false) && !phpbb_is_greater_ie_version($user->browser, 7))
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{
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wrap_img_in_html(append_sid($phpbb_root_path . 'download/file.' . $phpEx, 'id=' . $attachment['attach_id']), $attachment['real_filename']);
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file_gc();
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}
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else
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{
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// Determine the 'presenting'-method
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if ($download_mode == PHYSICAL_LINK)
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{
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// This presenting method should no longer be used
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if (!@is_dir($phpbb_root_path . $config['upload_path']))
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{
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send_status_line(500, 'Internal Server Error');
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trigger_error($user->lang['PHYSICAL_DOWNLOAD_NOT_POSSIBLE']);
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}
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redirect($phpbb_root_path . $config['upload_path'] . '/' . $attachment['physical_filename']);
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file_gc();
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}
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else
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{
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send_file_to_browser($attachment, $config['upload_path'], $display_cat);
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file_gc();
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}
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}
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}
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