3 * Initialize some defaults needed for DokuWiki
7 * timing Dokuwiki execution
9 function delta_time($start=0) {
10 return microtime(true)-((float)$start);
12 define('DOKU_START_TIME', delta_time());
14 global $config_cascade;
15 $config_cascade = array();
17 // if available load a preload config file
18 $preload = fullpath(dirname(__FILE__)).'/preload.php';
19 if (@file_exists($preload)) include($preload);
21 // define the include path
22 if(!defined('DOKU_INC')) define('DOKU_INC',fullpath(dirname(__FILE__).'/../').'/');
25 if(!defined('DOKU_PLUGIN')) define('DOKU_PLUGIN',DOKU_INC.'lib/plugins/');
27 // define config path (packagers may want to change this to /etc/dokuwiki/)
28 if(!defined('DOKU_CONF')) define('DOKU_CONF',DOKU_INC.'conf/');
30 // check for error reporting override or set error reporting to sane values
31 if (!defined('DOKU_E_LEVEL') && @file_exists(DOKU_CONF.'report_e_all')) {
32 define('DOKU_E_LEVEL', E_ALL);
34 if (!defined('DOKU_E_LEVEL')) {
35 if(defined('E_DEPRECATED')){ // since php 5.3, since php 5.4 E_STRICT is part of E_ALL
36 error_reporting(E_ALL & ~E_NOTICE & ~E_DEPRECATED & ~E_STRICT);
38 error_reporting(E_ALL ^ E_NOTICE);
41 error_reporting(DOKU_E_LEVEL);
45 global $cache_revinfo;
46 $cache_revinfo = array();
48 $cache_wikifn = array();
49 global $cache_cleanid;
50 $cache_cleanid = array();
51 global $cache_authname;
52 $cache_authname = array();
53 global $cache_metadata;
54 $cache_metadata = array();
56 // always include 'inc/config_cascade.php'
57 // previously in preload.php set fields of $config_cascade will be merged with the defaults
58 include(DOKU_INC.'inc/config_cascade.php');
60 //prepare config array()
64 // load the global config file(s)
65 foreach (array('default','local','protected') as $config_group) {
66 if (empty($config_cascade['main'][$config_group])) continue;
67 foreach ($config_cascade['main'][$config_group] as $config_file) {
68 if (@file_exists($config_file)) {
69 include($config_file);
74 //prepare license array()
78 // load the license file(s)
79 foreach (array('default','local') as $config_group) {
80 if (empty($config_cascade['license'][$config_group])) continue;
81 foreach ($config_cascade['license'][$config_group] as $config_file) {
82 if(@file_exists($config_file)){
83 include($config_file);
88 // set timezone (as in pre 5.3.0 days)
89 date_default_timezone_set(@date_default_timezone_get());
92 if(!defined('DOKU_REL')) define('DOKU_REL',getBaseURL(false));
93 if(!defined('DOKU_URL')) define('DOKU_URL',getBaseURL(true));
94 if(!defined('DOKU_BASE')){
95 if($conf['canonical']){
96 define('DOKU_BASE',DOKU_URL);
98 define('DOKU_BASE',DOKU_REL);
103 if(!defined('DOKU_LF')) define ('DOKU_LF',"\n");
104 if(!defined('DOKU_TAB')) define ('DOKU_TAB',"\t");
106 // define cookie and session id, append server port when securecookie is configured FS#1664
107 if (!defined('DOKU_COOKIE')) define('DOKU_COOKIE', 'DW'.md5(DOKU_REL.(($conf['securecookie'])?$_SERVER['SERVER_PORT']:'')));
110 // define main script
111 if(!defined('DOKU_SCRIPT')) define('DOKU_SCRIPT','doku.php');
113 // DEPRECATED, use tpl_basedir() instead
114 if(!defined('DOKU_TPL')) define('DOKU_TPL',
115 DOKU_BASE.'lib/tpl/'.$conf['template'].'/');
117 // DEPRECATED, use tpl_incdir() instead
118 if(!defined('DOKU_TPLINC')) define('DOKU_TPLINC',
119 DOKU_INC.'lib/tpl/'.$conf['template'].'/');
121 // make session rewrites XHTML compliant
122 @ini_set('arg_separator.output', '&');
124 // make sure global zlib does not interfere FS#1132
125 @ini_set('zlib.output_compression', 'off');
127 // increase PCRE backtrack limit
128 @ini_set('pcre.backtrack_limit', '20971520');
130 // enable gzip compression if supported
131 $conf['gzip_output'] &= (strpos($_SERVER['HTTP_ACCEPT_ENCODING'],'gzip') !== false);
133 if ($conf['gzip_output'] &&
134 !defined('DOKU_DISABLE_GZIP_OUTPUT') &&
135 function_exists('ob_gzhandler') &&
136 // Disable compression when a (compressed) sitemap might be delivered
137 // See https://bugs.dokuwiki.org/index.php?do=details&task_id=2576
139 ob_start('ob_gzhandler');
143 if (!headers_sent() && !defined('NOSESSION')){
144 session_name("DokuWiki");
145 $cookieDir = empty($conf['cookiedir']) ? DOKU_REL : $conf['cookiedir'];
146 if (version_compare(PHP_VERSION, '5.2.0', '>')) {
147 session_set_cookie_params(0,$cookieDir,'',($conf['securecookie'] && is_ssl()),true);
149 session_set_cookie_params(0,$cookieDir,'',($conf['securecookie'] && is_ssl()));
153 // load left over messages
154 if(isset($_SESSION[DOKU_COOKIE]['msg'])){
155 $MSG = $_SESSION[DOKU_COOKIE]['msg'];
156 unset($_SESSION[DOKU_COOKIE]['msg']);
161 if (get_magic_quotes_gpc() && !defined('MAGIC_QUOTES_STRIPPED')) {
162 if (!empty($_GET)) remove_magic_quotes($_GET);
163 if (!empty($_POST)) remove_magic_quotes($_POST);
164 if (!empty($_COOKIE)) remove_magic_quotes($_COOKIE);
165 if (!empty($_REQUEST)) remove_magic_quotes($_REQUEST);
166 @ini_set('magic_quotes_gpc', 0);
167 define('MAGIC_QUOTES_STRIPPED',1);
169 if(function_exists('set_magic_quotes_runtime')) @set_magic_quotes_runtime(0);
170 @ini_set('magic_quotes_sybase',0);
172 // don't let cookies ever interfere with request vars
173 $_REQUEST = array_merge($_GET,$_POST);
175 // we don't want a purge URL to be digged
176 if(isset($_REQUEST['purge']) && $_SERVER['HTTP_REFERER']) unset($_REQUEST['purge']);
178 // disable gzip if not available
179 if($conf['compression'] == 'bz2' && !function_exists('bzopen')){
180 $conf['compression'] = 'gz';
182 if($conf['compression'] == 'gz' && !function_exists('gzopen')){
183 $conf['compression'] = 0;
186 // fix dateformat for upgraders
187 if(strpos($conf['dformat'],'%') === false){
188 $conf['dformat'] = '%Y/%m/%d %H:%M';
191 // precalculate file creation modes
192 init_creationmodes();
194 // make real paths and check them
198 // setup plugin controller class (can be overwritten in preload.php)
199 $plugin_types = array('admin','syntax','action','renderer', 'helper','remote');
200 global $plugin_controller_class, $plugin_controller;
201 if (empty($plugin_controller_class)) $plugin_controller_class = 'Doku_Plugin_Controller';
204 require_once(DOKU_INC.'inc/load.php');
206 // input handle class
208 $INPUT = new Input();
210 // initialize plugin controller
211 $plugin_controller = new $plugin_controller_class();
213 // initialize the event handler
214 global $EVENT_HANDLER;
215 $EVENT_HANDLER = new Doku_Event_Handler();
217 $local = $conf['lang'];
218 trigger_event('INIT_LANG_LOAD', $local, 'init_lang', true);
221 // setup authentication system
222 if (!defined('NOSESSION')) {
230 * Checks paths from config file
232 function init_paths(){
235 $paths = array('datadir' => 'pages',
237 'mediadir' => 'media',
238 'mediaolddir' => 'media_attic',
240 'mediametadir' => 'media_meta',
241 'cachedir' => 'cache',
242 'indexdir' => 'index',
243 'lockdir' => 'locks',
246 foreach($paths as $c => $p) {
247 $path = empty($conf[$c]) ? $conf['savedir'].'/'.$p : $conf[$c];
248 $conf[$c] = init_path($path);
250 nice_die("The $c ('$p') at $path is not found, isn't accessible or writable.
251 You should check your config and permission settings.
252 Or maybe you want to <a href=\"install.php\">run the
256 // path to old changelog only needed for upgrading
257 $conf['changelog_old'] = init_path((isset($conf['changelog']))?($conf['changelog']):($conf['savedir'].'/changes.log'));
258 if ($conf['changelog_old']=='') { unset($conf['changelog_old']); }
259 // hardcoded changelog because it is now a cache that lives in meta
260 $conf['changelog'] = $conf['metadir'].'/_dokuwiki.changes';
261 $conf['media_changelog'] = $conf['metadir'].'/_media.changes';
264 function init_lang($langCode) {
265 //prepare language array
269 //load the language files
270 require_once(DOKU_INC.'inc/lang/en/lang.php');
271 if ($langCode && $langCode != 'en') {
272 if (file_exists(DOKU_INC."inc/lang/$langCode/lang.php")) {
273 require_once(DOKU_INC."inc/lang/$langCode/lang.php");
279 * Checks the existence of certain files and creates them if missing.
281 function init_files(){
284 $files = array($conf['indexdir'].'/page.idx');
286 foreach($files as $file){
287 if(!@file_exists($file)){
288 $fh = @fopen($file,'a');
291 if($conf['fperm']) chmod($file, $conf['fperm']);
293 nice_die("$file is not writable. Check your permissions settings!");
298 # create title index (needs to have same length as page.idx)
300 $file = $conf['indexdir'].'/title.idx';
301 if(!@file_exists($file)){
302 $pages = file($conf['indexdir'].'/page.idx');
303 $pages = count($pages);
304 $fh = @fopen($file,'a');
306 for($i=0; $i<$pages; $i++){
311 nice_die("$file is not writable. Check your permissions settings!");
318 * Returns absolute path
320 * This tries the given path first, then checks in DOKU_INC.
321 * Check for accessibility on directories as well.
323 * @author Andreas Gohr <andi@splitbrain.org>
325 function init_path($path){
327 $p = fullpath($path);
328 if(!@file_exists($p)){
329 $p = fullpath(DOKU_INC.$path);
330 if(!@file_exists($p)){
336 if(!@is_writable($p)){
340 // check accessability (execute bit) for directories
341 if(@is_dir($p) && !@file_exists("$p/.")){
349 * Sets the internal config values fperm and dperm which, when set,
350 * will be used to change the permission of a newly created dir or
351 * file with chmod. Considers the influence of the system's umask
352 * setting the values only if needed.
354 function init_creationmodes(){
357 // Legacy support for old umask/dmask scheme
358 unset($conf['dmask']);
359 unset($conf['fmask']);
360 unset($conf['umask']);
361 unset($conf['fperm']);
362 unset($conf['dperm']);
364 // get system umask, fallback to 0 if none available
366 if(!$umask) $umask = 0000;
368 // check what is set automatically by the system on file creation
369 // and set the fperm param if it's not what we want
370 $auto_fmode = 0666 & ~$umask;
371 if($auto_fmode != $conf['fmode']) $conf['fperm'] = $conf['fmode'];
373 // check what is set automatically by the system on file creation
374 // and set the dperm param if it's not what we want
375 $auto_dmode = $conf['dmode'] & ~$umask;
376 if($auto_dmode != $conf['dmode']) $conf['dperm'] = $conf['dmode'];
380 * remove magic quotes recursivly
382 * @author Andreas Gohr <andi@splitbrain.org>
384 function remove_magic_quotes(&$array) {
385 foreach (array_keys($array) as $key) {
386 // handle magic quotes in keynames (breaks order)
387 $sk = stripslashes($key);
389 $array[$sk] = $array[$key];
394 // do recursion if needed
395 if (is_array($array[$key])) {
396 remove_magic_quotes($array[$key]);
398 $array[$key] = stripslashes($array[$key]);
404 * Returns the full absolute URL to the directory where
405 * DokuWiki is installed in (includes a trailing slash)
407 * @author Andreas Gohr <andi@splitbrain.org>
409 function getBaseURL($abs=null){
411 //if canonical url enabled always return absolute
412 if(is_null($abs)) $abs = $conf['canonical'];
414 if($conf['basedir']){
415 $dir = $conf['basedir'];
416 }elseif(substr($_SERVER['SCRIPT_NAME'],-4) == '.php'){
417 $dir = dirname($_SERVER['SCRIPT_NAME']);
418 }elseif(substr($_SERVER['PHP_SELF'],-4) == '.php'){
419 $dir = dirname($_SERVER['PHP_SELF']);
420 }elseif($_SERVER['DOCUMENT_ROOT'] && $_SERVER['SCRIPT_FILENAME']){
421 $dir = preg_replace ('/^'.preg_quote($_SERVER['DOCUMENT_ROOT'],'/').'/','',
422 $_SERVER['SCRIPT_FILENAME']);
423 $dir = dirname('/'.$dir);
425 $dir = '.'; //probably wrong
428 $dir = str_replace('\\','/',$dir); // bugfix for weird WIN behaviour
429 $dir = preg_replace('#//+#','/',"/$dir/"); // ensure leading and trailing slashes
431 //handle script in lib/exe dir
432 $dir = preg_replace('!lib/exe/$!','',$dir);
434 //handle script in lib/plugins dir
435 $dir = preg_replace('!lib/plugins/.*$!','',$dir);
437 //finish here for relative URLs
438 if(!$abs) return $dir;
440 //use config option if available, trim any slash from end of baseurl to avoid multiple consecutive slashes in the path
441 if($conf['baseurl']) return rtrim($conf['baseurl'],'/').$dir;
443 //split hostheader into host and port
444 if(isset($_SERVER['HTTP_HOST'])){
445 $parsed_host = parse_url('http://'.$_SERVER['HTTP_HOST']);
446 $host = $parsed_host['host'];
447 $port = $parsed_host['port'];
448 }elseif(isset($_SERVER['SERVER_NAME'])){
449 $parsed_host = parse_url('http://'.$_SERVER['SERVER_NAME']);
450 $host = $parsed_host['host'];
451 $port = $parsed_host['port'];
453 $host = php_uname('n');
457 if(!$port && isset($_SERVER['SERVER_PORT'])) {
458 $port = $_SERVER['SERVER_PORT'];
472 if ($port == '443') {
477 if($port !== '') $port = ':'.$port;
479 return $proto.$host.$port.$dir;
483 * Check if accessed via HTTPS
485 * Apache leaves ,$_SERVER['HTTPS'] empty when not available, IIS sets it to 'off'.
486 * 'false' and 'disabled' are just guessing
488 * @returns bool true when SSL is active
491 if (!isset($_SERVER['HTTPS']) ||
492 preg_match('/^(|off|false|disabled)$/i',$_SERVER['HTTPS'])){
500 * print a nice message even if no styles are loaded yet.
502 function nice_die($msg){
506 <head><title>DokuWiki Setup Error</title></head>
507 <body style="font-family: Arial, sans-serif">
508 <div style="width:60%; margin: auto; background-color: #fcc;
509 border: 1px solid #faa; padding: 0.5em 1em;">
510 <h1 style="font-size: 120%">DokuWiki Setup Error</h1>
520 * A realpath() replacement
522 * This function behaves similar to PHP's realpath() but does not resolve
523 * symlinks or accesses upper directories
525 * @author Andreas Gohr <andi@splitbrain.org>
526 * @author <richpageau at yahoo dot co dot uk>
527 * @link http://de3.php.net/manual/en/function.realpath.php#75992
529 function fullpath($path,$exists=false){
532 $iswin = (strtoupper(substr(PHP_OS, 0, 3)) === 'WIN' || @$GLOBALS['DOKU_UNITTEST_ASSUME_WINDOWS']);
534 // find the (indestructable) root of the path - keeps windows stuff intact
538 // match drive letter and UNC paths
539 if(preg_match('!^([a-zA-z]:)(.*)!',$path,$match)){
540 $root = $match[1].'/';
542 }else if(preg_match('!^(\\\\\\\\[^\\\\/]+\\\\[^\\\\/]+[\\\\/])(.*)!',$path,$match)){
547 $path = str_replace('\\','/',$path);
549 // if the given path wasn't absolute already, prepend the script path and retry
551 $base = dirname($_SERVER['SCRIPT_FILENAME']);
552 $path = $base.'/'.$path;
553 if($run == 0){ // avoid endless recursion when base isn't absolute for some reason
555 return fullpath($path,$exists);
561 $path=explode('/', $path);
563 foreach($path as $p) {
564 if ($p === '' || $p === '.') continue;
569 array_push($newpath, $p);
571 $finalpath = $root.implode('/', $newpath);
573 // check for existence when needed (except when unit testing)
574 if($exists && !defined('DOKU_UNITTEST') && !@file_exists($finalpath)) {