xref: /dokuwiki/inc/init.php (revision 3dc3a5f166aa2c4e345b27f6811db5889261c3d4)
1<?php
2/**
3 * Initialize some defaults needed for DokuWiki
4 */
5
6  // define the include path
7  if(!defined('DOKU_INC')) define('DOKU_INC',realpath(dirname(__FILE__).'/../').'/');
8  require_once(DOKU_INC.'conf/dokuwiki.php');
9
10  // define baseURL
11  if(!defined('DOKU_BASE')) define('DOKU_BASE',getBaseURL());
12  if(!defined('DOKU_URL'))  define('DOKU_URL',getBaseURL(true));
13
14  // define main script
15  if(!defined('DOKU_SCRIPT')) define('DOKU_SCRIPT','doku.php');
16
17  // set up error reporting to sane values
18  error_reporting(E_ALL ^ E_NOTICE);
19
20  // make session rewrites XHTML compliant
21  ini_set('arg_separator.output', '&amp;');
22
23  // init session
24  session_name("DokuWiki");
25  session_start();
26
27  // kill magic quotes
28  if (get_magic_quotes_gpc()) {
29    if (!empty($_GET))    remove_magic_quotes($_GET);
30    if (!empty($_POST))   remove_magic_quotes($_POST);
31    if (!empty($_COOKIE)) remove_magic_quotes($_COOKIE);
32    if (!empty($_REQUEST)) remove_magic_quotes($_REQUEST);
33    if (!empty($_SESSION)) remove_magic_quotes($_SESSION);
34    ini_set('magic_quotes_gpc', 0);
35  }
36  set_magic_quotes_runtime(0);
37  ini_set('magic_quotes_sybase',0);
38
39  // disable gzip if not available
40  if($conf['usegzip'] && !function_exists('gzopen')){
41    $conf['usegzip'] = 0;
42  }
43
44  // remember original umask
45  $conf['oldumask'] = umask();
46
47  // make absolute mediaweb
48  if(!preg_match('#^(https?://|/)#i',$conf['mediaweb'])){
49    $conf['mediaweb'] = getBaseURL().$conf['mediaweb'];
50  }
51
52  // make real paths and check them
53  $conf['datadir']       = realpath($conf['datadir']);
54  if(!$conf['datadir'])    msg('Wrong datadir!',-1);
55  $conf['olddir']        = realpath($conf['olddir']);
56  if(!$conf['olddir'])     msg('Wrong olddir!',-1);
57  $conf['mediadir']      = realpath($conf['mediadir']);
58  if(!$conf['mediadir'])   msg('Wrong mediadir!',-1);
59
60/**
61 * remove magic quotes recursivly
62 *
63 * @author Andreas Gohr <andi@splitbrain.org>
64 */
65function remove_magic_quotes(&$array) {
66  foreach (array_keys($array) as $key) {
67    if (is_array($array[$key])) {
68      remove_magic_quotes($array[$key]);
69    }else {
70      $array[$key] = stripslashes($array[$key]);
71    }
72  }
73}
74
75/**
76 * Returns the full absolute URL to the directory where
77 * DokuWiki is installed in (includes a trailing slash)
78 *
79 * @author Andreas Gohr <andi@splitbrain.org>
80 */
81function getBaseURL($abs=false){
82  global $conf;
83  //if canonical url enabled always return absolute
84  if($conf['canonical']) $abs = true;
85
86  $dir = dirname($_SERVER['PHP_SELF']).'/';
87
88  $dir = str_replace('\\','/',$dir); #bugfix for weird WIN behaviour
89  $dir = preg_replace('#//+#','/',$dir);
90
91  //finish here for relative URLs
92  if(!$abs) return $dir;
93
94  $port = ':'.$_SERVER['SERVER_PORT'];
95  //remove port from hostheader as sent by IE
96  $host = preg_replace('/:.*$/','',$_SERVER['HTTP_HOST']);
97
98  // see if HTTPS is enabled - apache leaves this empty when not available,
99  // IIS sets it to 'off', 'false' and 'disabled' are just guessing
100  if (preg_match('/^(|off|false|disabled)$/i',$_SERVER['HTTPS'])){
101    $proto = 'http://';
102    if ($_SERVER['SERVER_PORT'] == '80') {
103      $port='';
104    }
105  }else{
106    $proto = 'https://';
107    if ($_SERVER['SERVER_PORT'] == '443') {
108      $port='';
109    }
110  }
111
112  return $proto.$host.$port.$dir;
113}
114
115
116?>
117