php-phpbb/phpBB/style.php

<?php 
/** 
*
* @package phpBB3
* @version $Id$
* @copyright (c) 2005 phpBB Group 
* @license http://opensource.org/licenses/gpl-license.php GNU Public License 
*
*/

/**
* @ignore
*/
define('IN_PHPBB', true);
$phpbb_root_path = './';
$phpEx = substr(strrchr(__FILE__, '.'), 1);
require($phpbb_root_path . 'config.' . $phpEx);

set_magic_quotes_runtime(0);

// Load Extensions
if (!empty($load_extensions))
{
	$load_extensions = explode(',', $load_extensions);

	foreach ($load_extensions as $extension)
	{
		@dl(trim($extension));
	}
}


$sid = (isset($_GET['sid'])) ? htmlspecialchars($_GET['sid']) : '';
$id = (isset($_GET['id'])) ? intval($_GET['id']) : 0;

if (!preg_match('/^[A-Za-z0-9]*$/', $sid))
{
	$sid = '';
}

// This is a simple script to grab and output the requested CSS data stored in the DB
// We include a session_id check to try and limit 3rd party linking ... unless they
// happen to have a current session it will output nothing. We will also cache the
// resulting CSS data for five minutes ... anything to reduce the load on the SQL
// server a little
if ($id && $sid)
{
	if (empty($acm_type) || empty($dbms))
	{
		die('Hacking attempt');
	}

	// Include files
	require($phpbb_root_path . 'includes/acm/acm_' . $acm_type . '.' . $phpEx);
	require($phpbb_root_path . 'includes/cache.' . $phpEx);
	require($phpbb_root_path . 'includes/db/' . $dbms . '.' . $phpEx);

	$db = new $sql_db();
	$cache = new cache();

	// Connect to DB
	if (!@$db->sql_connect($dbhost, $dbuser, $dbpasswd, $dbname, $dbport, false))
	{
		exit;
	}

	$sql = "SELECT s.session_id, u.user_lang
		FROM {$table_prefix}sessions s, {$table_prefix}users u
		WHERE s.session_id = '" . $db->sql_escape($sid) . "'
			AND s.session_user_id = u.user_id";
	$result = $db->sql_query($sql);
	$user = $db->sql_fetchrow($result);
	$db->sql_freeresult($result);

	if ($user)
	{
		$sql = "SELECT s.style_id, c.theme_data, c.theme_path, c.theme_name, c.theme_mtime, i.*, t.template_path
			FROM {$table_prefix}styles s, {$table_prefix}styles_template t, {$table_prefix}styles_theme c, {$table_prefix}styles_imageset i
			WHERE s.style_id = $id
				AND t.template_id = s.template_id
				AND c.theme_id = s.theme_id
				AND i.imageset_id = s.imageset_id";
		$result = $db->sql_query($sql, 300);
		$theme = $db->sql_fetchrow($result);
		$db->sql_freeresult($result);

		if (!$theme)
		{
			exit;
		}

		/**
		* @todo What happens if the theme_data value is older than the file?
		* It should be re-cached as is done with templates and the template cache
		* if ($theme['theme_mtime'] < filemtime("{$phpbb_root_path}styles/" . $theme['theme_path'] . '/theme/stylesheet.css'))
		*/

		header('Expires: ' . gmdate('D, d M Y H:i:s \G\M\T', time() + 3600));
		header('Content-type: text/css');

		// Parse Theme Data
		$replace = array(
			'{T_THEME_PATH}'			=> "{$phpbb_root_path}styles/" . $theme['theme_path'] . '/theme',
			'{T_TEMPLATE_PATH}'			=> "{$phpbb_root_path}styles/" . $theme['template_path'] . '/template',
			'{T_IMAGESET_PATH}'			=> "{$phpbb_root_path}styles/" . $theme['imageset_path'] . '/imageset',
			'{T_IMAGESET_LANG_PATH}'	=> "{$phpbb_root_path}styles/" . $theme['imageset_path'] . '/imageset/' . $user['user_lang'],
			'{T_STYLESHEET_NAME}'		=> $theme['theme_name'],
			'{S_USER_LANG}'				=> $user['user_lang']
		);

		$theme['theme_data'] = str_replace(array_keys($replace), array_values($replace), $theme['theme_data']);

		$matches = array();
		preg_match_all('#\{IMG_([A-Za-z0-9_]*?)_(WIDTH|HEIGHT|SRC)\}#', $theme['theme_data'], $matches);

		$imgs = $find = $replace = array();
		if (isset($matches[0]) && sizeof($matches[0]))
		{
			foreach ($matches[1] as $i => $img)
			{
				$img = strtolower($img);
				if (!isset($theme[$img]))
				{
					continue;
				}

				if (!isset($imgs[$img]))
				{
					// Do not include dimensions?
					if (strpos($theme[$img], '*') === false)
					{
						$imgsrc = trim($theme[$img]);
						$width = $height = null;
					}
					else
					{
						list($imgsrc, $height, $width) = explode('*', $theme[$img]);
					}
		
					$imgs[$img] = array(
						'src'		=> $phpbb_root_path . 'styles/' . $theme['imageset_path'] . '/imageset/' . str_replace('{LANG}', $user['user_lang'], $imgsrc),
						'width'		=> $width,
						'height'	=> $height,
					);
				}

				switch ($matches[2][$i])
				{
					case 'SRC':
						$replace = $imgs[$img]['src'];
					break;
					
					case 'WIDTH':
						$replace = $imgs[$img]['width'];
					break;
		
					case 'HEIGHT':
						$replace = $imgs[$img]['height'];
					break;

					default:
						continue;
				}
				$find = $matches[0][$i];
			}

			if (sizeof($find))
			{
				$theme['theme_data'] = str_replace($find, $replace, $theme['theme_data']);
			}
		}

		echo $theme['theme_data'];
	}

	if (!empty($cache))
	{
		$cache->unload();
	}
	$db->sql_close();
}

?>