579 lines
17 KiB
PHP
579 lines
17 KiB
PHP
<?php
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/**
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* Initialize some defaults needed for DokuWiki
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*/
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/**
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* timing Dokuwiki execution
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*/
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function delta_time($start=0) {
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return microtime(true)-((float)$start);
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}
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define('DOKU_START_TIME', delta_time());
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global $config_cascade;
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$config_cascade = array();
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// if available load a preload config file
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$preload = fullpath(dirname(__FILE__)).'/preload.php';
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if (@file_exists($preload)) include($preload);
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// define the include path
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if(!defined('DOKU_INC')) define('DOKU_INC',fullpath(dirname(__FILE__).'/../').'/');
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// define Plugin dir
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if(!defined('DOKU_PLUGIN')) define('DOKU_PLUGIN',DOKU_INC.'lib/plugins/');
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// define config path (packagers may want to change this to /etc/dokuwiki/)
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if(!defined('DOKU_CONF')) define('DOKU_CONF',DOKU_INC.'conf/');
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// check for error reporting override or set error reporting to sane values
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if (!defined('DOKU_E_LEVEL') && @file_exists(DOKU_CONF.'report_e_all')) {
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define('DOKU_E_LEVEL', E_ALL);
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}
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if (!defined('DOKU_E_LEVEL')) {
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if(defined('E_DEPRECATED')){ // since php 5.3, since php 5.4 E_STRICT is part of E_ALL
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error_reporting(E_ALL & ~E_NOTICE & ~E_DEPRECATED & ~E_STRICT);
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}else{
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error_reporting(E_ALL ^ E_NOTICE);
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}
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} else {
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error_reporting(DOKU_E_LEVEL);
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}
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// init memory caches
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global $cache_revinfo;
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$cache_revinfo = array();
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global $cache_wikifn;
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$cache_wikifn = array();
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global $cache_cleanid;
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$cache_cleanid = array();
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global $cache_authname;
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$cache_authname = array();
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global $cache_metadata;
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$cache_metadata = array();
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// always include 'inc/config_cascade.php'
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// previously in preload.php set fields of $config_cascade will be merged with the defaults
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include(DOKU_INC.'inc/config_cascade.php');
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//prepare config array()
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global $conf;
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$conf = array();
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// load the global config file(s)
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foreach (array('default','local','protected') as $config_group) {
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if (empty($config_cascade['main'][$config_group])) continue;
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foreach ($config_cascade['main'][$config_group] as $config_file) {
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if (@file_exists($config_file)) {
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include($config_file);
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}
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}
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}
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//prepare license array()
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global $license;
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$license = array();
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// load the license file(s)
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foreach (array('default','local') as $config_group) {
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if (empty($config_cascade['license'][$config_group])) continue;
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foreach ($config_cascade['license'][$config_group] as $config_file) {
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if(@file_exists($config_file)){
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include($config_file);
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}
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}
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}
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// set timezone (as in pre 5.3.0 days)
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date_default_timezone_set(@date_default_timezone_get());
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// define baseURL
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if(!defined('DOKU_REL')) define('DOKU_REL',getBaseURL(false));
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if(!defined('DOKU_URL')) define('DOKU_URL',getBaseURL(true));
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if(!defined('DOKU_BASE')){
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if($conf['canonical']){
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define('DOKU_BASE',DOKU_URL);
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}else{
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define('DOKU_BASE',DOKU_REL);
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}
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}
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// define whitespace
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if(!defined('DOKU_LF')) define ('DOKU_LF',"\n");
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if(!defined('DOKU_TAB')) define ('DOKU_TAB',"\t");
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// define cookie and session id, append server port when securecookie is configured FS#1664
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if (!defined('DOKU_COOKIE')) define('DOKU_COOKIE', 'DW'.md5(DOKU_REL.(($conf['securecookie'])?$_SERVER['SERVER_PORT']:'')));
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// define main script
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if(!defined('DOKU_SCRIPT')) define('DOKU_SCRIPT','doku.php');
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// DEPRECATED, use tpl_basedir() instead
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if(!defined('DOKU_TPL')) define('DOKU_TPL',
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DOKU_BASE.'lib/tpl/'.$conf['template'].'/');
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// DEPRECATED, use tpl_incdir() instead
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if(!defined('DOKU_TPLINC')) define('DOKU_TPLINC',
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DOKU_INC.'lib/tpl/'.$conf['template'].'/');
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// make session rewrites XHTML compliant
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@ini_set('arg_separator.output', '&');
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// make sure global zlib does not interfere FS#1132
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@ini_set('zlib.output_compression', 'off');
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// increase PCRE backtrack limit
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@ini_set('pcre.backtrack_limit', '20971520');
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// enable gzip compression if supported
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$conf['gzip_output'] &= (strpos($_SERVER['HTTP_ACCEPT_ENCODING'],'gzip') !== false);
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global $ACT;
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if ($conf['gzip_output'] &&
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!defined('DOKU_DISABLE_GZIP_OUTPUT') &&
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function_exists('ob_gzhandler') &&
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// Disable compression when a (compressed) sitemap might be delivered
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// See https://bugs.dokuwiki.org/index.php?do=details&task_id=2576
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$ACT != 'sitemap') {
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ob_start('ob_gzhandler');
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}
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// init session
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if (!headers_sent() && !defined('NOSESSION')){
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session_name("DokuWiki");
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$cookieDir = empty($conf['cookiedir']) ? DOKU_REL : $conf['cookiedir'];
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if (version_compare(PHP_VERSION, '5.2.0', '>')) {
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session_set_cookie_params(0,$cookieDir,'',($conf['securecookie'] && is_ssl()),true);
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}else{
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session_set_cookie_params(0,$cookieDir,'',($conf['securecookie'] && is_ssl()));
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}
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session_start();
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// load left over messages
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if(isset($_SESSION[DOKU_COOKIE]['msg'])){
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$MSG = $_SESSION[DOKU_COOKIE]['msg'];
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unset($_SESSION[DOKU_COOKIE]['msg']);
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}
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}
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// kill magic quotes
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if (get_magic_quotes_gpc() && !defined('MAGIC_QUOTES_STRIPPED')) {
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if (!empty($_GET)) remove_magic_quotes($_GET);
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if (!empty($_POST)) remove_magic_quotes($_POST);
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if (!empty($_COOKIE)) remove_magic_quotes($_COOKIE);
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if (!empty($_REQUEST)) remove_magic_quotes($_REQUEST);
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@ini_set('magic_quotes_gpc', 0);
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define('MAGIC_QUOTES_STRIPPED',1);
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}
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if(function_exists('set_magic_quotes_runtime')) @set_magic_quotes_runtime(0);
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@ini_set('magic_quotes_sybase',0);
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// don't let cookies ever interfere with request vars
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$_REQUEST = array_merge($_GET,$_POST);
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// we don't want a purge URL to be digged
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if(isset($_REQUEST['purge']) && $_SERVER['HTTP_REFERER']) unset($_REQUEST['purge']);
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// disable gzip if not available
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if($conf['compression'] == 'bz2' && !function_exists('bzopen')){
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$conf['compression'] = 'gz';
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}
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if($conf['compression'] == 'gz' && !function_exists('gzopen')){
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$conf['compression'] = 0;
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}
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// fix dateformat for upgraders
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if(strpos($conf['dformat'],'%') === false){
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$conf['dformat'] = '%Y/%m/%d %H:%M';
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}
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// precalculate file creation modes
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init_creationmodes();
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// make real paths and check them
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init_paths();
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init_files();
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// setup plugin controller class (can be overwritten in preload.php)
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$plugin_types = array('admin','syntax','action','renderer', 'helper','remote');
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global $plugin_controller_class, $plugin_controller;
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if (empty($plugin_controller_class)) $plugin_controller_class = 'Doku_Plugin_Controller';
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// load libraries
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require_once(DOKU_INC.'inc/load.php');
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// input handle class
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global $INPUT;
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$INPUT = new Input();
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// initialize plugin controller
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$plugin_controller = new $plugin_controller_class();
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// initialize the event handler
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global $EVENT_HANDLER;
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$EVENT_HANDLER = new Doku_Event_Handler();
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$local = $conf['lang'];
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trigger_event('INIT_LANG_LOAD', $local, 'init_lang', true);
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// setup authentication system
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if (!defined('NOSESSION')) {
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auth_setup();
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}
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// setup mail system
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mail_setup();
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/**
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* Checks paths from config file
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*/
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function init_paths(){
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global $conf;
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$paths = array('datadir' => 'pages',
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'olddir' => 'attic',
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'mediadir' => 'media',
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'mediaolddir' => 'media_attic',
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'metadir' => 'meta',
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'mediametadir' => 'media_meta',
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'cachedir' => 'cache',
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'indexdir' => 'index',
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'lockdir' => 'locks',
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'tmpdir' => 'tmp');
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foreach($paths as $c => $p) {
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$path = empty($conf[$c]) ? $conf['savedir'].'/'.$p : $conf[$c];
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$conf[$c] = init_path($path);
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if(empty($conf[$c]))
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nice_die("The $c ('$p') at $path is not found, isn't accessible or writable.
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You should check your config and permission settings.
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Or maybe you want to <a href=\"install.php\">run the
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installer</a>?");
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}
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// path to old changelog only needed for upgrading
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$conf['changelog_old'] = init_path((isset($conf['changelog']))?($conf['changelog']):($conf['savedir'].'/changes.log'));
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if ($conf['changelog_old']=='') { unset($conf['changelog_old']); }
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// hardcoded changelog because it is now a cache that lives in meta
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$conf['changelog'] = $conf['metadir'].'/_dokuwiki.changes';
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$conf['media_changelog'] = $conf['metadir'].'/_media.changes';
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}
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function init_lang($langCode) {
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//prepare language array
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global $lang;
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$lang = array();
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//load the language files
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require_once(DOKU_INC.'inc/lang/en/lang.php');
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if ($langCode && $langCode != 'en') {
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if (file_exists(DOKU_INC."inc/lang/$langCode/lang.php")) {
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require_once(DOKU_INC."inc/lang/$langCode/lang.php");
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}
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}
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}
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/**
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* Checks the existence of certain files and creates them if missing.
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*/
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function init_files(){
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global $conf;
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$files = array($conf['indexdir'].'/page.idx');
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foreach($files as $file){
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if(!@file_exists($file)){
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$fh = @fopen($file,'a');
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if($fh){
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fclose($fh);
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if($conf['fperm']) chmod($file, $conf['fperm']);
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}else{
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nice_die("$file is not writable. Check your permissions settings!");
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}
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}
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}
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# create title index (needs to have same length as page.idx)
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/*
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$file = $conf['indexdir'].'/title.idx';
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if(!@file_exists($file)){
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$pages = file($conf['indexdir'].'/page.idx');
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$pages = count($pages);
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$fh = @fopen($file,'a');
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if($fh){
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for($i=0; $i<$pages; $i++){
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fwrite($fh,"\n");
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}
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fclose($fh);
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}else{
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nice_die("$file is not writable. Check your permissions settings!");
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}
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}
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*/
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}
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/**
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* Returns absolute path
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*
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* This tries the given path first, then checks in DOKU_INC.
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* Check for accessibility on directories as well.
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*
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* @author Andreas Gohr <andi@splitbrain.org>
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*/
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function init_path($path){
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// check existence
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$p = fullpath($path);
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if(!@file_exists($p)){
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$p = fullpath(DOKU_INC.$path);
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if(!@file_exists($p)){
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return '';
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}
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}
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// check writability
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if(!@is_writable($p)){
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return '';
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}
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// check accessability (execute bit) for directories
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if(@is_dir($p) && !@file_exists("$p/.")){
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return '';
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}
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return $p;
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}
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/**
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* Sets the internal config values fperm and dperm which, when set,
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* will be used to change the permission of a newly created dir or
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* file with chmod. Considers the influence of the system's umask
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* setting the values only if needed.
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*/
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function init_creationmodes(){
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global $conf;
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// Legacy support for old umask/dmask scheme
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unset($conf['dmask']);
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unset($conf['fmask']);
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unset($conf['umask']);
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unset($conf['fperm']);
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unset($conf['dperm']);
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// get system umask, fallback to 0 if none available
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$umask = @umask();
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if(!$umask) $umask = 0000;
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// check what is set automatically by the system on file creation
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// and set the fperm param if it's not what we want
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$auto_fmode = 0666 & ~$umask;
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if($auto_fmode != $conf['fmode']) $conf['fperm'] = $conf['fmode'];
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// check what is set automatically by the system on file creation
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// and set the dperm param if it's not what we want
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$auto_dmode = $conf['dmode'] & ~$umask;
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if($auto_dmode != $conf['dmode']) $conf['dperm'] = $conf['dmode'];
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}
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/**
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* remove magic quotes recursivly
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*
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* @author Andreas Gohr <andi@splitbrain.org>
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*/
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function remove_magic_quotes(&$array) {
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foreach (array_keys($array) as $key) {
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// handle magic quotes in keynames (breaks order)
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$sk = stripslashes($key);
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if($sk != $key){
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$array[$sk] = $array[$key];
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unset($array[$key]);
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$key = $sk;
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}
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// do recursion if needed
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if (is_array($array[$key])) {
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remove_magic_quotes($array[$key]);
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}else {
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$array[$key] = stripslashes($array[$key]);
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}
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}
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}
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/**
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* Returns the full absolute URL to the directory where
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* DokuWiki is installed in (includes a trailing slash)
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*
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* @author Andreas Gohr <andi@splitbrain.org>
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*/
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function getBaseURL($abs=null){
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global $conf;
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//if canonical url enabled always return absolute
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if(is_null($abs)) $abs = $conf['canonical'];
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if($conf['basedir']){
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$dir = $conf['basedir'];
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}elseif(substr($_SERVER['SCRIPT_NAME'],-4) == '.php'){
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$dir = dirname($_SERVER['SCRIPT_NAME']);
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}elseif(substr($_SERVER['PHP_SELF'],-4) == '.php'){
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$dir = dirname($_SERVER['PHP_SELF']);
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}elseif($_SERVER['DOCUMENT_ROOT'] && $_SERVER['SCRIPT_FILENAME']){
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$dir = preg_replace ('/^'.preg_quote($_SERVER['DOCUMENT_ROOT'],'/').'/','',
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$_SERVER['SCRIPT_FILENAME']);
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$dir = dirname('/'.$dir);
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}else{
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$dir = '.'; //probably wrong
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}
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$dir = str_replace('\\','/',$dir); // bugfix for weird WIN behaviour
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$dir = preg_replace('#//+#','/',"/$dir/"); // ensure leading and trailing slashes
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//handle script in lib/exe dir
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$dir = preg_replace('!lib/exe/$!','',$dir);
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//handle script in lib/plugins dir
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$dir = preg_replace('!lib/plugins/.*$!','',$dir);
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//finish here for relative URLs
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if(!$abs) return $dir;
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//use config option if available, trim any slash from end of baseurl to avoid multiple consecutive slashes in the path
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if($conf['baseurl']) return rtrim($conf['baseurl'],'/').$dir;
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//split hostheader into host and port
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if(isset($_SERVER['HTTP_HOST'])){
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$parsed_host = parse_url('http://'.$_SERVER['HTTP_HOST']);
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$host = $parsed_host['host'];
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$port = $parsed_host['port'];
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}elseif(isset($_SERVER['SERVER_NAME'])){
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$parsed_host = parse_url('http://'.$_SERVER['SERVER_NAME']);
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$host = $parsed_host['host'];
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$port = $parsed_host['port'];
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}else{
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$host = php_uname('n');
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$port = '';
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}
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if(!$port && isset($_SERVER['SERVER_PORT'])) {
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$port = $_SERVER['SERVER_PORT'];
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}
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if(is_null($port)){
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$port = '';
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}
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if(!is_ssl()){
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$proto = 'http://';
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if ($port == '80') {
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$port = '';
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}
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}else{
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$proto = 'https://';
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if ($port == '443') {
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$port = '';
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}
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}
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if($port !== '') $port = ':'.$port;
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return $proto.$host.$port.$dir;
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}
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/**
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* Check if accessed via HTTPS
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*
|
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* Apache leaves ,$_SERVER['HTTPS'] empty when not available, IIS sets it to 'off'.
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* 'false' and 'disabled' are just guessing
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*
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* @returns bool true when SSL is active
|
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*/
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function is_ssl(){
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if (!isset($_SERVER['HTTPS']) ||
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preg_match('/^(|off|false|disabled)$/i',$_SERVER['HTTPS'])){
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return false;
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}else{
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return true;
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}
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}
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/**
|
|
* print a nice message even if no styles are loaded yet.
|
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*/
|
|
function nice_die($msg){
|
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echo<<<EOT
|
|
<!DOCTYPE html>
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<html>
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<head><title>DokuWiki Setup Error</title></head>
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<body style="font-family: Arial, sans-serif">
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<div style="width:60%; margin: auto; background-color: #fcc;
|
|
border: 1px solid #faa; padding: 0.5em 1em;">
|
|
<h1 style="font-size: 120%">DokuWiki Setup Error</h1>
|
|
<p>$msg</p>
|
|
</div>
|
|
</body>
|
|
</html>
|
|
EOT;
|
|
exit;
|
|
}
|
|
|
|
/**
|
|
* A realpath() replacement
|
|
*
|
|
* This function behaves similar to PHP's realpath() but does not resolve
|
|
* symlinks or accesses upper directories
|
|
*
|
|
* @author Andreas Gohr <andi@splitbrain.org>
|
|
* @author <richpageau at yahoo dot co dot uk>
|
|
* @link http://de3.php.net/manual/en/function.realpath.php#75992
|
|
*/
|
|
function fullpath($path,$exists=false){
|
|
static $run = 0;
|
|
$root = '';
|
|
$iswin = (strtoupper(substr(PHP_OS, 0, 3)) === 'WIN' || @$GLOBALS['DOKU_UNITTEST_ASSUME_WINDOWS']);
|
|
|
|
// find the (indestructable) root of the path - keeps windows stuff intact
|
|
if($path{0} == '/'){
|
|
$root = '/';
|
|
}elseif($iswin){
|
|
// match drive letter and UNC paths
|
|
if(preg_match('!^([a-zA-z]:)(.*)!',$path,$match)){
|
|
$root = $match[1].'/';
|
|
$path = $match[2];
|
|
}else if(preg_match('!^(\\\\\\\\[^\\\\/]+\\\\[^\\\\/]+[\\\\/])(.*)!',$path,$match)){
|
|
$root = $match[1];
|
|
$path = $match[2];
|
|
}
|
|
}
|
|
$path = str_replace('\\','/',$path);
|
|
|
|
// if the given path wasn't absolute already, prepend the script path and retry
|
|
if(!$root){
|
|
$base = dirname($_SERVER['SCRIPT_FILENAME']);
|
|
$path = $base.'/'.$path;
|
|
if($run == 0){ // avoid endless recursion when base isn't absolute for some reason
|
|
$run++;
|
|
return fullpath($path,$exists);
|
|
}
|
|
}
|
|
$run = 0;
|
|
|
|
// canonicalize
|
|
$path=explode('/', $path);
|
|
$newpath=array();
|
|
foreach($path as $p) {
|
|
if ($p === '' || $p === '.') continue;
|
|
if ($p==='..') {
|
|
array_pop($newpath);
|
|
continue;
|
|
}
|
|
array_push($newpath, $p);
|
|
}
|
|
$finalpath = $root.implode('/', $newpath);
|
|
|
|
// check for existence when needed (except when unit testing)
|
|
if($exists && !defined('DOKU_UNITTEST') && !@file_exists($finalpath)) {
|
|
return false;
|
|
}
|
|
return $finalpath;
|
|
}
|
|
|