phpBB/style.php

   1 <?php
   2 /**
   3 *
   4 * @package phpBB3
   5 * @version $Id$
   6 * @copyright (c) 2005 phpBB Group
   7 * @license http://opensource.org/licenses/gpl-license.php GNU Public License
   8 *
   9 */
  10
  11 /**
  12 * @ignore
  13 */
  14 define('IN_PHPBB', true);
  15 $phpbb_root_path = (defined('PHPBB_ROOT_PATH')) ? PHPBB_ROOT_PATH : './';
  16 $phpEx = substr(strrchr(__FILE__, '.'), 1);
  17
  18 // Report all errors, except notices
  19 error_reporting(E_ALL ^ E_NOTICE);
  20 date_default_timezone_set('UTC');
  21
  22 require($phpbb_root_path . 'config.' . $phpEx);
  23
  24 if (!defined('PHPBB_INSTALLED') || empty($dbms) || empty($acm_type))
  25 {
  26         exit;
  27 }
  28
  29 if (version_compare(PHP_VERSION, '6.0.0-dev', '<'))
  30 {
  31         set_magic_quotes_runtime(0);
  32 }
  33
  34 // Load Extensions
  35 if (!empty($load_extensions))
  36 {
  37         $load_extensions = explode(',', $load_extensions);
  38
  39         foreach ($load_extensions as $extension)
  40         {
  41                 @dl(trim($extension));
  42         }
  43 }
  44
  45
  46 $sid = (isset($_GET['sid']) && !is_array($_GET['sid'])) ? htmlspecialchars($_GET['sid']) : '';
  47 $id = (isset($_GET['id'])) ? intval($_GET['id']) : 0;
  48
  49 if (strspn($sid, 'abcdefABCDEF0123456789') !== strlen($sid))
  50 {
  51         $sid = '';
  52 }
  53
  54 // This is a simple script to grab and output the requested CSS data stored in the DB
  55 // We include a session_id check to try and limit 3rd party linking ... unless they
  56 // happen to have a current session it will output nothing. We will also cache the
  57 // resulting CSS data for five minutes ... anything to reduce the load on the SQL
  58 // server a little
  59 if ($id)
  60 {
  61         // Include files
  62         require($phpbb_root_path . 'includes/acm/acm_' . $acm_type . '.' . $phpEx);
  63         require($phpbb_root_path . 'includes/cache.' . $phpEx);
  64         require($phpbb_root_path . 'includes/db/' . $dbms . '.' . $phpEx);
  65         require($phpbb_root_path . 'includes/constants.' . $phpEx);
  66
  67         $db = new $sql_db();
  68         $cache = new acm();
  69
  70         // Connect to DB
  71         if (!@$db->sql_connect($dbhost, $dbuser, $dbpasswd, $dbname, $dbport, false, false))
  72         {
  73                 exit;
  74         }
  75         unset($dbpasswd);
  76
  77         $config = cache::obtain_config();
  78         $user = false;
  79
  80         if ($sid)
  81         {
  82                 $sql = 'SELECT u.user_id, u.user_lang
  83                         FROM ' . SESSIONS_TABLE . ' s, ' . USERS_TABLE . " u
  84                         WHERE s.session_id = '" . $db->sql_escape($sid) . "'
  85                                 AND s.session_user_id = u.user_id";
  86                 $result = $db->sql_query($sql);
  87                 $user = $db->sql_fetchrow($result);
  88                 $db->sql_freeresult($result);
  89         }
  90
  91         $recompile = $config['load_tplcompile'];
  92         if (!$user)
  93         {
  94                 $id                     = $config['default_style'];
  95                 $recompile      = false;
  96                 $user           = array('user_id' => ANONYMOUS);
  97         }
  98
  99         $sql = 'SELECT s.style_id, c.theme_id, c.theme_data, c.theme_path, c.theme_name, c.theme_mtime, i.*, t.template_path
 100                 FROM ' . STYLES_TABLE . ' s, ' . STYLES_TEMPLATE_TABLE . ' t, ' . STYLES_THEME_TABLE . ' c, ' . STYLES_IMAGESET_TABLE . ' i
 101                 WHERE s.style_id = ' . $id . '
 102                         AND t.template_id = s.template_id
 103                         AND c.theme_id = s.theme_id
 104                         AND i.imageset_id = s.imageset_id';
 105         $result = $db->sql_query($sql, 300);
 106         $theme = $db->sql_fetchrow($result);
 107         $db->sql_freeresult($result);
 108
 109         if (!$theme)
 110         {
 111                 exit;
 112         }
 113
 114         if ($user['user_id'] == ANONYMOUS)
 115         {
 116                 $user['user_lang'] = $config['default_lang'];
 117         }
 118
 119         $user_image_lang = (file_exists($phpbb_root_path . 'styles/' . $theme['imageset_path'] . '/imageset/' . $user['user_lang'])) ? $user['user_lang'] : $config['default_lang'];
 120
 121         $sql = 'SELECT *
 122                 FROM ' . STYLES_IMAGESET_DATA_TABLE . '
 123                 WHERE imageset_id = ' . $theme['imageset_id'] . "
 124                 AND image_filename <> ''
 125                 AND image_lang IN ('" . $db->sql_escape($user_image_lang) . "', '')";
 126         $result = $db->sql_query($sql, 3600);
 127
 128         $img_array = array();
 129         while ($row = $db->sql_fetchrow($result))
 130         {
 131                 $img_array[$row['image_name']] = $row;
 132         }
 133         $db->sql_freeresult($result);
 134
 135         // gzip_compression
 136         if ($config['gzip_compress'])
 137         {
 138                 // IE6 is not able to compress the style (do not ask us why!)
 139                 $browser = (!empty($_SERVER['HTTP_USER_AGENT'])) ? strtolower(htmlspecialchars((string) $_SERVER['HTTP_USER_AGENT'])) : '';
 140
 141                 if ($browser && strpos($browser, 'msie 6.0') === false && @extension_loaded('zlib') && !headers_sent())
 142                 {
 143                         ob_start('ob_gzhandler');
 144                 }
 145         }
 146
 147         // Expire time of seven days if not recached
 148         $expire_time = 7 * 86400;
 149         $recache = false;
 150
 151         // Re-cache stylesheet data if necessary
 152         if ($recompile || empty($theme['theme_data']))
 153         {
 154                 $recache = (empty($theme['theme_data'])) ? true : false;
 155                 $update_time = time();
 156
 157                 // We test for stylesheet.css because it is faster and most likely the only file changed on common themes
 158                 if (!$recache && $theme['theme_mtime'] < @filemtime("{$phpbb_root_path}styles/" . $theme['theme_path'] . '/theme/stylesheet.css'))
 159                 {
 160                         $recache = true;
 161                         $update_time = @filemtime("{$phpbb_root_path}styles/" . $theme['theme_path'] . '/theme/stylesheet.css');
 162                 }
 163                 else if (!$recache)
 164                 {
 165                         $last_change = $theme['theme_mtime'];
 166                         $dir = @opendir("{$phpbb_root_path}styles/{$theme['theme_path']}/theme");
 167
 168                         if ($dir)
 169                         {
 170                                 while (($entry = readdir($dir)) !== false)
 171                                 {
 172                                         if (substr(strrchr($entry, '.'), 1) == 'css' && $last_change < @filemtime("{$phpbb_root_path}styles/{$theme['theme_path']}/theme/{$entry}"))
 173                                         {
 174                                                 $recache = true;
 175                                                 break;
 176                                         }
 177                                 }
 178                                 closedir($dir);
 179                         }
 180                 }
 181         }
 182
 183         if ($recache)
 184         {
 185                 if (!class_exists('acp_styles'))
 186                 {
 187                         include($phpbb_root_path . 'includes/acp/acp_styles.' . $phpEx);
 188                 }
 189
 190                 $theme['theme_data'] = acp_styles::db_theme_data($theme);
 191                 $theme['theme_mtime'] = $update_time;
 192
 193                 // Save CSS contents
 194                 $sql_ary = array(
 195                         'theme_mtime'   => $theme['theme_mtime'],
 196                         'theme_data'    => $theme['theme_data']
 197                 );
 198
 199                 // @TODO: rewrite with the new param db functions
 200                 $sql = 'UPDATE ' . STYLES_THEME_TABLE . ' SET ' . $db->sql_build_array('UPDATE', $sql_ary) . "
 201                         WHERE theme_id = {$theme['theme_id']}";
 202                 $db->sql_query($sql);
 203
 204                 $cache->destroy('sql', STYLES_THEME_TABLE);
 205         }
 206
 207         // Only set the expire time if the theme changed data is older than 30 minutes - to cope with changes from the ACP
 208         if ($recache || $theme['theme_mtime'] > (time() - 1800))
 209         {
 210                 header('Expires: 0');
 211         }
 212         else
 213         {
 214                 header('Expires: ' . gmdate('D, d M Y H:i:s \G\M\T', time() + $expire_time));
 215         }
 216
 217         header('Content-type: text/css; charset=UTF-8');
 218
 219         // Parse Theme Data
 220         $replace = array(
 221                 '{T_THEME_PATH}'                        => "{$phpbb_root_path}styles/" . $theme['theme_path'] . '/theme',
 222                 '{T_TEMPLATE_PATH}'                     => "{$phpbb_root_path}styles/" . $theme['template_path'] . '/template',
 223                 '{T_IMAGESET_PATH}'                     => "{$phpbb_root_path}styles/" . $theme['imageset_path'] . '/imageset',
 224                 '{T_IMAGESET_LANG_PATH}'        => "{$phpbb_root_path}styles/" . $theme['imageset_path'] . '/imageset/' . $user_image_lang,
 225                 '{T_STYLESHEET_NAME}'           => $theme['theme_name'],
 226                 '{S_USER_LANG}'                         => $user['user_lang']
 227         );
 228
 229         $theme['theme_data'] = str_replace(array_keys($replace), array_values($replace), $theme['theme_data']);
 230
 231         $matches = array();
 232         preg_match_all('#\{IMG_([A-Za-z0-9_]*?)_(WIDTH|HEIGHT|SRC)\}#', $theme['theme_data'], $matches);
 233
 234         $imgs = $find = $replace = array();
 235         if (isset($matches[0]) && sizeof($matches[0]))
 236         {
 237                 foreach ($matches[1] as $i => $img)
 238                 {
 239                         $img = strtolower($img);
 240                         $find[] = $matches[0][$i];
 241
 242                         if (!isset($img_array[$img]))
 243                         {
 244                                 $replace[] = '';
 245                                 continue;
 246                         }
 247
 248                         if (!isset($imgs[$img]))
 249                         {
 250                                 $img_data = &$img_array[$img];
 251                                 $imgsrc = ($img_data['image_lang'] ? $img_data['image_lang'] . '/' : '') . $img_data['image_filename'];
 252                                 $imgs[$img] = array(
 253                                         'src'           => $phpbb_root_path . 'styles/' . $theme['imageset_path'] . '/imageset/' . $imgsrc,
 254                                         'width'         => $img_data['image_width'],
 255                                         'height'        => $img_data['image_height'],
 256                                 );
 257                         }
 258
 259                         switch ($matches[2][$i])
 260                         {
 261                                 case 'SRC':
 262                                         $replace[] = $imgs[$img]['src'];
 263                                 break;
 264
 265                                 case 'WIDTH':
 266                                         $replace[] = $imgs[$img]['width'];
 267                                 break;
 268
 269                                 case 'HEIGHT':
 270                                         $replace[] = $imgs[$img]['height'];
 271                                 break;
 272
 273                                 default:
 274                                         continue;
 275                         }
 276                 }
 277
 278                 if (sizeof($find))
 279                 {
 280                         $theme['theme_data'] = str_replace($find, $replace, $theme['theme_data']);
 281                 }
 282         }
 283
 284         echo $theme['theme_data'];
 285
 286         if (!empty($cache))
 287         {
 288                 $cache->unload();
 289         }
 290         $db->sql_close();
 291 }
 292
 293 exit;
 294
 295 ?>