init.php ➔ nice_die() - Code Metrics - splitbrain/dokuwiki - Measure and Improve Code Quality continuously with Scrutinizer

init.php ➔ nice_die() A
last analyzed 2021-06-08 18:02 UTC

↳ Parent: Project

Complexity

Conditions	2
Paths	2

Size

Total Lines

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
cc	2
nc	2
nop	1
dl	0
loc	19
rs	9.6333
c	0
b	0
f	0

<?php
/**
 * Initialize some defaults needed for DokuWiki
 */

use dokuwiki\Extension\Event;
use dokuwiki\Extension\EventHandler;

/**
 * timing Dokuwiki execution
 *
 * @param integer $start
 *
 * @return mixed
 */
function delta_time($start=0) {
    return microtime(true)-((float)$start);
}
define('DOKU_START_TIME', delta_time());

global $config_cascade;
$config_cascade = array();

// if available load a preload config file
$preload = fullpath(dirname(__FILE__)).'/preload.php';
if (file_exists($preload)) include($preload);

// define the include path
if(!defined('DOKU_INC')) define('DOKU_INC',fullpath(dirname(__FILE__).'/../').'/');

// define Plugin dir
if(!defined('DOKU_PLUGIN'))  define('DOKU_PLUGIN',DOKU_INC.'lib/plugins/');

// define config path (packagers may want to change this to /etc/dokuwiki/)
if(!defined('DOKU_CONF')) define('DOKU_CONF',DOKU_INC.'conf/');

// check for error reporting override or set error reporting to sane values
if (!defined('DOKU_E_LEVEL') && file_exists(DOKU_CONF.'report_e_all')) {
    define('DOKU_E_LEVEL', E_ALL);
}
if (!defined('DOKU_E_LEVEL')) {
    error_reporting(E_ALL & ~E_NOTICE & ~E_DEPRECATED & ~E_STRICT);
} else {
    error_reporting(DOKU_E_LEVEL);
}

// avoid caching issues #1594
header('Vary: Cookie');

// init memory caches
global $cache_revinfo;
       $cache_revinfo = array();
global $cache_wikifn;
       $cache_wikifn = array();
global $cache_cleanid;
       $cache_cleanid = array();
global $cache_authname;
       $cache_authname = array();
global $cache_metadata;
       $cache_metadata = array();

// always include 'inc/config_cascade.php'
// previously in preload.php set fields of $config_cascade will be merged with the defaults
include(DOKU_INC.'inc/config_cascade.php');

//prepare config array()
global $conf;
$conf = array();

// load the global config file(s)
foreach (array('default','local','protected') as $config_group) {
    if (empty($config_cascade['main'][$config_group])) continue;
    foreach ($config_cascade['main'][$config_group] as $config_file) {
        if (file_exists($config_file)) {
            include($config_file);
        }
    }
}

//prepare license array()
global $license;
$license = array();

// load the license file(s)
foreach (array('default','local') as $config_group) {
    if (empty($config_cascade['license'][$config_group])) continue;
    foreach ($config_cascade['license'][$config_group] as $config_file) {
        if(file_exists($config_file)){
            include($config_file);
        }
    }
}

// set timezone (as in pre 5.3.0 days)
date_default_timezone_set(@date_default_timezone_get());

// define baseURL
if(!defined('DOKU_REL')) define('DOKU_REL',getBaseURL(false));
function acceptsInteger($int) { }

$x = '123'; // string "123"

// Instead of
acceptsInteger($x);

// we recommend to use
acceptsInteger((integer) $x);
if(!defined('DOKU_URL')) define('DOKU_URL',getBaseURL(true));
function acceptsInteger($int) { }

$x = '123'; // string "123"

// Instead of
acceptsInteger($x);

// we recommend to use
acceptsInteger((integer) $x);
if(!defined('DOKU_BASE')){
    if($conf['canonical']){
        define('DOKU_BASE',DOKU_URL);
    }else{
        define('DOKU_BASE',DOKU_REL);
    }
}

// define whitespace
if(!defined('NL')) define ('NL',"\n");
if(!defined('DOKU_LF')) define ('DOKU_LF',"\n");
if(!defined('DOKU_TAB')) define ('DOKU_TAB',"\t");

// define cookie and session id, append server port when securecookie is configured FS#1664
if (!defined('DOKU_COOKIE')) {
    $serverPort = isset($_SERVER['SERVER_PORT']) ? $_SERVER['SERVER_PORT'] : '';
    define('DOKU_COOKIE', 'DW' . md5(DOKU_REL . (($conf['securecookie']) ? $serverPort : '')));
    unset($serverPort);
}

// define main script
if(!defined('DOKU_SCRIPT')) define('DOKU_SCRIPT','doku.php');

if(!defined('DOKU_TPL')) {
    /**
     * @deprecated 2012-10-13 replaced by more dynamic method
     * @see tpl_basedir()
     */
    define('DOKU_TPL', DOKU_BASE.'lib/tpl/'.$conf['template'].'/');
}

if(!defined('DOKU_TPLINC')) {
    /**
     * @deprecated 2012-10-13 replaced by more dynamic method
     * @see tpl_incdir()
     */
    define('DOKU_TPLINC', DOKU_INC.'lib/tpl/'.$conf['template'].'/');
}

// make session rewrites XHTML compliant
@ini_set('arg_separator.output', '&amp;');

// make sure global zlib does not interfere FS#1132
@ini_set('zlib.output_compression', 'off');

// increase PCRE backtrack limit
@ini_set('pcre.backtrack_limit', '20971520');

// enable gzip compression if supported
$httpAcceptEncoding = isset($_SERVER['HTTP_ACCEPT_ENCODING']) ? $_SERVER['HTTP_ACCEPT_ENCODING'] : '';
$conf['gzip_output'] &= (strpos($httpAcceptEncoding, 'gzip') !== false);
global $ACT;
if ($conf['gzip_output'] &&
        !defined('DOKU_DISABLE_GZIP_OUTPUT') &&
        function_exists('ob_gzhandler') &&
        // Disable compression when a (compressed) sitemap might be delivered
        // See https://bugs.dokuwiki.org/index.php?do=details&task_id=2576
        $ACT != 'sitemap') {
    ob_start('ob_gzhandler');
}

// init session
if(!headers_sent() && !defined('NOSESSION')) {
    if(!defined('DOKU_SESSION_NAME'))     define ('DOKU_SESSION_NAME', "DokuWiki");
    if(!defined('DOKU_SESSION_LIFETIME')) define ('DOKU_SESSION_LIFETIME', 0);
    if(!defined('DOKU_SESSION_PATH')) {
        $cookieDir = empty($conf['cookiedir']) ? DOKU_REL : $conf['cookiedir'];
        define ('DOKU_SESSION_PATH', $cookieDir);
    }
    if(!defined('DOKU_SESSION_DOMAIN'))   define ('DOKU_SESSION_DOMAIN', '');

    // start the session
    init_session();

    // load left over messages
    if(isset($_SESSION[DOKU_COOKIE]['msg'])) {
        $MSG = $_SESSION[DOKU_COOKIE]['msg'];
        unset($_SESSION[DOKU_COOKIE]['msg']);
    }
}

// don't let cookies ever interfere with request vars
$_REQUEST = array_merge($_GET,$_POST);

// we don't want a purge URL to be digged
if(isset($_REQUEST['purge']) && !empty($_SERVER['HTTP_REFERER'])) unset($_REQUEST['purge']);

// precalculate file creation modes
init_creationmodes();

// make real paths and check them
init_paths();
init_files();

// setup plugin controller class (can be overwritten in preload.php)
global $plugin_controller_class, $plugin_controller;
if (empty($plugin_controller_class)) $plugin_controller_class = dokuwiki\Extension\PluginController::class;

// load libraries
require_once(DOKU_INC.'vendor/autoload.php');
require_once(DOKU_INC.'inc/load.php');

// from now on everything is an exception
\dokuwiki\ErrorHandler::register();

// disable gzip if not available
define('DOKU_HAS_BZIP', function_exists('bzopen'));
define('DOKU_HAS_GZIP', function_exists('gzopen'));
if($conf['compression'] == 'bz2' && !DOKU_HAS_BZIP) {
    $conf['compression'] = 'gz';
}
if($conf['compression'] == 'gz' && !DOKU_HAS_GZIP) {
    $conf['compression'] = 0;
}

// input handle class
global $INPUT;
$INPUT = new \dokuwiki\Input\Input();

// initialize plugin controller
$plugin_controller = new $plugin_controller_class();

// initialize the event handler
global $EVENT_HANDLER;
$EVENT_HANDLER = new EventHandler();

$local = $conf['lang'];
Event::createAndTrigger('INIT_LANG_LOAD', $local, 'init_lang', true);


// setup authentication system
if (!defined('NOSESSION')) {
    auth_setup();
}

// setup mail system
mail_setup();

/**
 * Initializes the session
 *
 * Makes sure the passed session cookie is valid, invalid ones are ignored an a new session ID is issued
 *
 * @link http://stackoverflow.com/a/33024310/172068
 * @link http://php.net/manual/en/session.configuration.php#ini.session.sid-length
 */
function init_session() {
    global $conf;
    session_name(DOKU_SESSION_NAME);
    session_set_cookie_params(
        DOKU_SESSION_LIFETIME,
        DOKU_SESSION_PATH,
        DOKU_SESSION_DOMAIN,
        ($conf['securecookie'] && is_ssl()),
        true
    );

    // make sure the session cookie contains a valid session ID
    if(isset($_COOKIE[DOKU_SESSION_NAME]) && !preg_match('/^[-,a-zA-Z0-9]{22,256}$/', $_COOKIE[DOKU_SESSION_NAME])) {
        unset($_COOKIE[DOKU_SESSION_NAME]);
    }

    session_start();
}


/**
 * Checks paths from config file
 */
function init_paths(){
    global $conf;

    $paths = [
        'datadir'   => 'pages',
        'olddir'    => 'attic',
        'mediadir'  => 'media',
        'mediaolddir' => 'media_attic',
        'metadir'   => 'meta',
        'mediametadir' => 'media_meta',
        'cachedir'  => 'cache',
        'indexdir'  => 'index',
        'lockdir'   => 'locks',
        'tmpdir'    => 'tmp',
        'logdir'    => 'log',
    ];

    foreach($paths as $c => $p) {
        $path = empty($conf[$c]) ? $conf['savedir'].'/'.$p : $conf[$c];
        $conf[$c] = init_path($path);
        if(empty($conf[$c]))
            nice_die("The $c ('$p') at $path is not found, isn't accessible or writable.
                You should check your config and permission settings.
                Or maybe you want to <a href=\"install.php\">run the
                installer</a>?");
    }

    // path to old changelog only needed for upgrading
    $conf['changelog_old'] = init_path(
        (isset($conf['changelog'])) ? ($conf['changelog']) : ($conf['savedir'] . '/changes.log')
    );
    if ($conf['changelog_old']=='') { unset($conf['changelog_old']); }
    // hardcoded changelog because it is now a cache that lives in meta
    $conf['changelog'] = $conf['metadir'].'/_dokuwiki.changes';
    $conf['media_changelog'] = $conf['metadir'].'/_media.changes';
}

/**
 * Load the language strings
 *
 * @param string $langCode language code, as passed by event handler
 */
function init_lang($langCode) {
    //prepare language array
    global $lang, $config_cascade;
    $lang = array();

    //load the language files
    require(DOKU_INC.'inc/lang/en/lang.php');
    foreach ($config_cascade['lang']['core'] as $config_file) {
        if (file_exists($config_file . 'en/lang.php')) {
            include($config_file . 'en/lang.php');
        }
    }

    if ($langCode && $langCode != 'en') {
        if (file_exists(DOKU_INC."inc/lang/$langCode/lang.php")) {
            require(DOKU_INC."inc/lang/$langCode/lang.php");
        }
        foreach ($config_cascade['lang']['core'] as $config_file) {
            if (file_exists($config_file . "$langCode/lang.php")) {
                include($config_file . "$langCode/lang.php");
            }
        }
    }
}

/**
 * Checks the existence of certain files and creates them if missing.
 */
function init_files(){
    global $conf;

    $files = array($conf['indexdir'].'/page.idx');

    foreach($files as $file){
        if(!file_exists($file)){
            $fh = @fopen($file,'a');
            if($fh){
                fclose($fh);
                if($conf['fperm']) chmod($file, $conf['fperm']);
            }else{
                nice_die("$file is not writable. Check your permissions settings!");
            }
        }
    }
}

/**
 * Returns absolute path
 *
 * This tries the given path first, then checks in DOKU_INC.
 * Check for accessibility on directories as well.
 *
 * @author Andreas Gohr <[email protected]>
 *
 * @param string $path
 *
 * @return bool|string
 */
function init_path($path){
    // check existence
    $p = fullpath($path);
    if(!file_exists($p)){
        $p = fullpath(DOKU_INC.$path);
        if(!file_exists($p)){
            return '';
        }
    }

    // check writability
    if(!@is_writable($p)){
        return '';
    }

    // check accessability (execute bit) for directories
    if(@is_dir($p) && !file_exists("$p/.")){
        return '';
    }

    return $p;
}

/**
 * Sets the internal config values fperm and dperm which, when set,
 * will be used to change the permission of a newly created dir or
 * file with chmod. Considers the influence of the system's umask
 * setting the values only if needed.
 */
function init_creationmodes(){
    global $conf;

    // Legacy support for old umask/dmask scheme
    unset($conf['dmask']);
    unset($conf['fmask']);
    unset($conf['umask']);

    $conf['fperm'] = false;
    $conf['dperm'] = false;

    // get system umask, fallback to 0 if none available
    $umask = @umask();
    if(!$umask) $umask = 0000;

    // check what is set automatically by the system on file creation
    // and set the fperm param if it's not what we want
    $auto_fmode = $conf['fmode'] & ~$umask;
    if($auto_fmode != $conf['fmode']) $conf['fperm'] = $conf['fmode'];

    // check what is set automatically by the system on file creation
    // and set the dperm param if it's not what we want
    $auto_dmode = $conf['dmode'] & ~$umask;
    if($auto_dmode != $conf['dmode']) $conf['dperm'] = $conf['dmode'];
}

/**
 * Returns the full absolute URL to the directory where
 * DokuWiki is installed in (includes a trailing slash)
 *
 * !! Can not access $_SERVER values through $INPUT
 * !! here as this function is called before $INPUT is
 * !! initialized.
 *
 * @author Andreas Gohr <[email protected]>
 *
 * @param null|string $abs
 *
 * @return string
 */
function getBaseURL($abs=null){
    global $conf;
    //if canonical url enabled always return absolute
    if(is_null($abs)) $abs = $conf['canonical'];

    if(!empty($conf['basedir'])){
        $dir = $conf['basedir'];
    }elseif(substr($_SERVER['SCRIPT_NAME'],-4) == '.php'){
        $dir = dirname($_SERVER['SCRIPT_NAME']);
    }elseif(substr($_SERVER['PHP_SELF'],-4) == '.php'){
        $dir = dirname($_SERVER['PHP_SELF']);
    }elseif($_SERVER['DOCUMENT_ROOT'] && $_SERVER['SCRIPT_FILENAME']){
        $dir = preg_replace ('/^'.preg_quote($_SERVER['DOCUMENT_ROOT'],'/').'/','',
                $_SERVER['SCRIPT_FILENAME']);
        $dir = dirname('/'.$dir);
    }else{
        $dir = '.'; //probably wrong
    }

    $dir = str_replace('\\','/',$dir);             // bugfix for weird WIN behaviour
    $dir = preg_replace('#//+#','/',"/$dir/");     // ensure leading and trailing slashes

    //handle script in lib/exe dir
    $dir = preg_replace('!lib/exe/$!','',$dir);

    //handle script in lib/plugins dir
    $dir = preg_replace('!lib/plugins/.*$!','',$dir);

    //finish here for relative URLs
    if(!$abs) return $dir;

    //use config if available, trim any slash from end of baseurl to avoid multiple consecutive slashes in the path
    if(!empty($conf['baseurl'])) return rtrim($conf['baseurl'],'/').$dir;

    //split hostheader into host and port
    if(isset($_SERVER['HTTP_HOST'])){
        $parsed_host = parse_url('http://'.$_SERVER['HTTP_HOST']);
        $host = isset($parsed_host['host']) ? $parsed_host['host'] : null;
        $port = isset($parsed_host['port']) ? $parsed_host['port'] : null;
    }elseif(isset($_SERVER['SERVER_NAME'])){
        $parsed_host = parse_url('http://'.$_SERVER['SERVER_NAME']);
        $host = isset($parsed_host['host']) ? $parsed_host['host'] : null;
        $port = isset($parsed_host['port']) ? $parsed_host['port'] : null;
    }else{
        $host = php_uname('n');
        $port = '';
    }

    if(is_null($port)){
        $port = '';
    }

    if(!is_ssl()){
        $proto = 'http://';
        if ($port == '80') {
            $port = '';
        }
    }else{
        $proto = 'https://';
        if ($port == '443') {
            $port = '';
        }
    }

    if($port !== '') $port = ':'.$port;

    return $proto.$host.$port.$dir;
}

/**
 * Check if accessed via HTTPS
 *
 * Apache leaves ,$_SERVER['HTTPS'] empty when not available, IIS sets it to 'off'.
 * 'false' and 'disabled' are just guessing
 *
 * @returns bool true when SSL is active
 */
function is_ssl() {
    // check if we are behind a reverse proxy
    if(isset($_SERVER['HTTP_X_FORWARDED_PROTO'])) {
        if($_SERVER['HTTP_X_FORWARDED_PROTO'] == 'https') {
            return true;
        } else {
            return false;
        }
    }
    if(!isset($_SERVER['HTTPS']) ||
        preg_match('/^(|off|false|disabled)$/i', $_SERVER['HTTPS'])) {
        return false;
    } else {
        return true;
    }
}

/**
 * checks it is windows OS
 * @return bool
 */
function isWindows() {
    return (strtoupper(substr(PHP_OS, 0, 3)) === 'WIN') ? true : false;
}

/**
 * print a nice message even if no styles are loaded yet.
 *
 * @param integer|string $msg
 */
function nice_die($msg){
    echo<<<EOT
<!DOCTYPE html>
<html>
<head><title>DokuWiki Setup Error</title></head>
<body style="font-family: Arial, sans-serif">
    <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>$msg</p>
    </div>
</body>
</html>
EOT;
    if(defined('DOKU_UNITTEST')) {
        throw new RuntimeException('nice_die: '.$msg);
    }
    exit(1);
}

/**
 * A realpath() replacement
 *
 * This function behaves similar to PHP's realpath() but does not resolve
 * symlinks or accesses upper directories
 *
 * @author Andreas Gohr <[email protected]>
 * @author <richpageau at yahoo dot co dot uk>
 * @link   http://php.net/manual/en/function.realpath.php#75992
 *
 * @param string $path
 * @param bool $exists
 *
 * @return bool|string
 */
function fullpath($path,$exists=false){
    static $run = 0;
    $root  = '';
    $iswin = (strtoupper(substr(PHP_OS, 0, 3)) === 'WIN' || !empty($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;
}



1			<?php
2			/**
3			* Initialize some defaults needed for DokuWiki
4			*/
5
6			use dokuwiki\Extension\Event;
7			use dokuwiki\Extension\EventHandler;
8
9			/**
10			* timing Dokuwiki execution
11			*
12			* @param integer $start
13			*
14			* @return mixed
15			*/
16			function delta_time($start=0) {
17			return microtime(true)-((float)$start);
18			}
19			define('DOKU_START_TIME', delta_time());
20
21			global $config_cascade;
22			$config_cascade = array();
23
24			// if available load a preload config file
25			$preload = fullpath(dirname(__FILE__)).'/preload.php';
26			if (file_exists($preload)) include($preload);
27
28			// define the include path
29			if(!defined('DOKU_INC')) define('DOKU_INC',fullpath(dirname(__FILE__).'/../').'/');
30
31			// define Plugin dir
32			if(!defined('DOKU_PLUGIN')) define('DOKU_PLUGIN',DOKU_INC.'lib/plugins/');
33
34			// define config path (packagers may want to change this to /etc/dokuwiki/)
35			if(!defined('DOKU_CONF')) define('DOKU_CONF',DOKU_INC.'conf/');
36
37			// check for error reporting override or set error reporting to sane values
38			if (!defined('DOKU_E_LEVEL') && file_exists(DOKU_CONF.'report_e_all')) {
39			define('DOKU_E_LEVEL', E_ALL);
40			}
41			if (!defined('DOKU_E_LEVEL')) {
42			error_reporting(E_ALL & ~E_NOTICE & ~E_DEPRECATED & ~E_STRICT);
43			} else {
44			error_reporting(DOKU_E_LEVEL);
45			}
46
47			// avoid caching issues #1594
48			header('Vary: Cookie');
49
50			// init memory caches
51			global $cache_revinfo;
52			$cache_revinfo = array();
53			global $cache_wikifn;
54			$cache_wikifn = array();
55			global $cache_cleanid;
56			$cache_cleanid = array();
57			global $cache_authname;
58			$cache_authname = array();
59			global $cache_metadata;
60			$cache_metadata = array();
61
62			// always include 'inc/config_cascade.php'
63			// previously in preload.php set fields of $config_cascade will be merged with the defaults
64			include(DOKU_INC.'inc/config_cascade.php');
65
66			//prepare config array()
67			global $conf;
68			$conf = array();
69
70			// load the global config file(s)
71			foreach (array('default','local','protected') as $config_group) {
72			if (empty($config_cascade['main'][$config_group])) continue;
73			foreach ($config_cascade['main'][$config_group] as $config_file) {
74			if (file_exists($config_file)) {
75			include($config_file);
76			}
77			}
78			}
79
80			//prepare license array()
81			global $license;
82			$license = array();
83
84			// load the license file(s)
85			foreach (array('default','local') as $config_group) {
86			if (empty($config_cascade['license'][$config_group])) continue;
87			foreach ($config_cascade['license'][$config_group] as $config_file) {
88			if(file_exists($config_file)){
89			include($config_file);
90			}
91			}
92			}
93
94			// set timezone (as in pre 5.3.0 days)
95			date_default_timezone_set(@date_default_timezone_get());
96
97			// define baseURL
98			if(!defined('DOKU_REL')) define('DOKU_REL',getBaseURL(false));
			0 ignored issues – show Documentation introduced 2017-03-31 03:34 UTC by Report Bug Copy Issue Report `false` is of type `boolean`, but the function expects a `null\|string`. It seems like the type of the argument is not accepted by the function/method which you are calling. In some cases, in particular if PHP’s automatic type-juggling kicks in this might be fine. In other cases, however this might be a bug. We suggest to add an explicit type cast like in the following example: function acceptsInteger($int) { } $x = '123'; // string "123" // Instead of acceptsInteger($x); // we recommend to use acceptsInteger((integer) $x); Loading history...
99			if(!defined('DOKU_URL')) define('DOKU_URL',getBaseURL(true));
			0 ignored issues – show Documentation introduced 2017-03-31 03:34 UTC by Report Bug Copy Issue Report `true` is of type `boolean`, but the function expects a `null\|string`. It seems like the type of the argument is not accepted by the function/method which you are calling. In some cases, in particular if PHP’s automatic type-juggling kicks in this might be fine. In other cases, however this might be a bug. We suggest to add an explicit type cast like in the following example: function acceptsInteger($int) { } $x = '123'; // string "123" // Instead of acceptsInteger($x); // we recommend to use acceptsInteger((integer) $x); Loading history...
100			if(!defined('DOKU_BASE')){
101			if($conf['canonical']){
102			define('DOKU_BASE',DOKU_URL);
103			}else{
104			define('DOKU_BASE',DOKU_REL);
105			}
106			}
107
108			// define whitespace
109			if(!defined('NL')) define ('NL',"\n");
110			if(!defined('DOKU_LF')) define ('DOKU_LF',"\n");
111			if(!defined('DOKU_TAB')) define ('DOKU_TAB',"\t");
112
113			// define cookie and session id, append server port when securecookie is configured FS#1664
114			if (!defined('DOKU_COOKIE')) {
115			$serverPort = isset($_SERVER['SERVER_PORT']) ? $_SERVER['SERVER_PORT'] : '';
116			define('DOKU_COOKIE', 'DW' . md5(DOKU_REL . (($conf['securecookie']) ? $serverPort : '')));
117			unset($serverPort);
118			}
119
120			// define main script
121			if(!defined('DOKU_SCRIPT')) define('DOKU_SCRIPT','doku.php');
122
123			if(!defined('DOKU_TPL')) {
124			/**
125			* @deprecated 2012-10-13 replaced by more dynamic method
126			* @see tpl_basedir()
127			*/
128			define('DOKU_TPL', DOKU_BASE.'lib/tpl/'.$conf['template'].'/');
129			}
130
131			if(!defined('DOKU_TPLINC')) {
132			/**
133			* @deprecated 2012-10-13 replaced by more dynamic method
134			* @see tpl_incdir()
135			*/
136			define('DOKU_TPLINC', DOKU_INC.'lib/tpl/'.$conf['template'].'/');
137			}
138
139			// make session rewrites XHTML compliant
140			@ini_set('arg_separator.output', '&');
141
142			// make sure global zlib does not interfere FS#1132
143			@ini_set('zlib.output_compression', 'off');
144
145			// increase PCRE backtrack limit
146			@ini_set('pcre.backtrack_limit', '20971520');
147
148			// enable gzip compression if supported
149			$httpAcceptEncoding = isset($_SERVER['HTTP_ACCEPT_ENCODING']) ? $_SERVER['HTTP_ACCEPT_ENCODING'] : '';
150			$conf['gzip_output'] &= (strpos($httpAcceptEncoding, 'gzip') !== false);
151			global $ACT;
152			if ($conf['gzip_output'] &&
153			!defined('DOKU_DISABLE_GZIP_OUTPUT') &&
154			function_exists('ob_gzhandler') &&
155			// Disable compression when a (compressed) sitemap might be delivered
156			// See https://bugs.dokuwiki.org/index.php?do=details&task_id=2576
157			$ACT != 'sitemap') {
158			ob_start('ob_gzhandler');
159			}
160
161			// init session
162			if(!headers_sent() && !defined('NOSESSION')) {
163			if(!defined('DOKU_SESSION_NAME')) define ('DOKU_SESSION_NAME', "DokuWiki");
164			if(!defined('DOKU_SESSION_LIFETIME')) define ('DOKU_SESSION_LIFETIME', 0);
165			if(!defined('DOKU_SESSION_PATH')) {
166			$cookieDir = empty($conf['cookiedir']) ? DOKU_REL : $conf['cookiedir'];
167			define ('DOKU_SESSION_PATH', $cookieDir);
168			}
169			if(!defined('DOKU_SESSION_DOMAIN')) define ('DOKU_SESSION_DOMAIN', '');
170
171			// start the session
172			init_session();
173
174			// load left over messages
175			if(isset($_SESSION[DOKU_COOKIE]['msg'])) {
176			$MSG = $_SESSION[DOKU_COOKIE]['msg'];
177			unset($_SESSION[DOKU_COOKIE]['msg']);
178			}
179			}
180
181			// don't let cookies ever interfere with request vars
182			$_REQUEST = array_merge($_GET,$_POST);
183
184			// we don't want a purge URL to be digged
185			if(isset($_REQUEST['purge']) && !empty($_SERVER['HTTP_REFERER'])) unset($_REQUEST['purge']);
186
187			// precalculate file creation modes
188			init_creationmodes();
189
190			// make real paths and check them
191			init_paths();
192			init_files();
193
194			// setup plugin controller class (can be overwritten in preload.php)
195			global $plugin_controller_class, $plugin_controller;
196			if (empty($plugin_controller_class)) $plugin_controller_class = dokuwiki\Extension\PluginController::class;
197
198			// load libraries
199			require_once(DOKU_INC.'vendor/autoload.php');
200			require_once(DOKU_INC.'inc/load.php');
201
202			// from now on everything is an exception
203			\dokuwiki\ErrorHandler::register();
204
205			// disable gzip if not available
206			define('DOKU_HAS_BZIP', function_exists('bzopen'));
207			define('DOKU_HAS_GZIP', function_exists('gzopen'));
208			if($conf['compression'] == 'bz2' && !DOKU_HAS_BZIP) {
209			$conf['compression'] = 'gz';
210			}
211			if($conf['compression'] == 'gz' && !DOKU_HAS_GZIP) {
212			$conf['compression'] = 0;
213			}
214
215			// input handle class
216			global $INPUT;
217			$INPUT = new \dokuwiki\Input\Input();
218
219			// initialize plugin controller
220			$plugin_controller = new $plugin_controller_class();
221
222			// initialize the event handler
223			global $EVENT_HANDLER;
224			$EVENT_HANDLER = new EventHandler();
225
226			$local = $conf['lang'];
227			Event::createAndTrigger('INIT_LANG_LOAD', $local, 'init_lang', true);
228
229
230			// setup authentication system
231			if (!defined('NOSESSION')) {
232			auth_setup();
233			}
234
235			// setup mail system
236			mail_setup();
237
238			/**
239			* Initializes the session
240			*
241			* Makes sure the passed session cookie is valid, invalid ones are ignored an a new session ID is issued
242			*
243			* @link http://stackoverflow.com/a/33024310/172068
244			* @link http://php.net/manual/en/session.configuration.php#ini.session.sid-length
245			*/
246			function init_session() {
247			global $conf;
248			session_name(DOKU_SESSION_NAME);
249			session_set_cookie_params(
250			DOKU_SESSION_LIFETIME,
251			DOKU_SESSION_PATH,
252			DOKU_SESSION_DOMAIN,
253			($conf['securecookie'] && is_ssl()),
254			true
255			);
256
257			// make sure the session cookie contains a valid session ID
258			if(isset($_COOKIE[DOKU_SESSION_NAME]) && !preg_match('/^[-,a-zA-Z0-9]{22,256}$/', $_COOKIE[DOKU_SESSION_NAME])) {
259			unset($_COOKIE[DOKU_SESSION_NAME]);
260			}
261
262			session_start();
263			}
264
265
266			/**
267			* Checks paths from config file
268			*/
269			function init_paths(){
270			global $conf;
271
272			$paths = [
273			'datadir' => 'pages',
274			'olddir' => 'attic',
275			'mediadir' => 'media',
276			'mediaolddir' => 'media_attic',
277			'metadir' => 'meta',
278			'mediametadir' => 'media_meta',
279			'cachedir' => 'cache',
280			'indexdir' => 'index',
281			'lockdir' => 'locks',
282			'tmpdir' => 'tmp',
283			'logdir' => 'log',
284			];
285
286			foreach($paths as $c => $p) {
287			$path = empty($conf[$c]) ? $conf['savedir'].'/'.$p : $conf[$c];
288			$conf[$c] = init_path($path);
289			if(empty($conf[$c]))
290			nice_die("The $c ('$p') at $path is not found, isn't accessible or writable.
291			You should check your config and permission settings.
292			Or maybe you want to <a href=\"install.php\">run the
293			installer</a>?");
294			}
295
296			// path to old changelog only needed for upgrading
297			$conf['changelog_old'] = init_path(
298			(isset($conf['changelog'])) ? ($conf['changelog']) : ($conf['savedir'] . '/changes.log')
299			);
300			if ($conf['changelog_old']=='') { unset($conf['changelog_old']); }
301			// hardcoded changelog because it is now a cache that lives in meta
302			$conf['changelog'] = $conf['metadir'].'/_dokuwiki.changes';
303			$conf['media_changelog'] = $conf['metadir'].'/_media.changes';
304			}
305
306			/**
307			* Load the language strings
308			*
309			* @param string $langCode language code, as passed by event handler
310			*/
311			function init_lang($langCode) {
312			//prepare language array
313			global $lang, $config_cascade;
314			$lang = array();
315
316			//load the language files
317			require(DOKU_INC.'inc/lang/en/lang.php');
318			foreach ($config_cascade['lang']['core'] as $config_file) {
319			if (file_exists($config_file . 'en/lang.php')) {
320			include($config_file . 'en/lang.php');
321			}
322			}
323
324			if ($langCode && $langCode != 'en') {
325			if (file_exists(DOKU_INC."inc/lang/$langCode/lang.php")) {
326			require(DOKU_INC."inc/lang/$langCode/lang.php");
327			}
328			foreach ($config_cascade['lang']['core'] as $config_file) {
329			if (file_exists($config_file . "$langCode/lang.php")) {
330			include($config_file . "$langCode/lang.php");
331			}
332			}
333			}
334			}
335
336			/**
337			* Checks the existence of certain files and creates them if missing.
338			*/
339			function init_files(){
340			global $conf;
341
342			$files = array($conf['indexdir'].'/page.idx');
343
344			foreach($files as $file){
345			if(!file_exists($file)){
346			$fh = @fopen($file,'a');
347			if($fh){
348			fclose($fh);
349			if($conf['fperm']) chmod($file, $conf['fperm']);
350			}else{
351			nice_die("$file is not writable. Check your permissions settings!");
352			}
353			}
354			}
355			}
356
357			/**
358			* Returns absolute path
359			*
360			* This tries the given path first, then checks in DOKU_INC.
361			* Check for accessibility on directories as well.
362			*
363			* @author Andreas Gohr <[email protected]>
364			*
365			* @param string $path
366			*
367			* @return bool\|string
368			*/
369			function init_path($path){
370			// check existence
371			$p = fullpath($path);
372			if(!file_exists($p)){
373			$p = fullpath(DOKU_INC.$path);
374			if(!file_exists($p)){
375			return '';
376			}
377			}
378
379			// check writability
380			if(!@is_writable($p)){
381			return '';
382			}
383
384			// check accessability (execute bit) for directories
385			if(@is_dir($p) && !file_exists("$p/.")){
386			return '';
387			}
388
389			return $p;
390			}
391
392			/**
393			* Sets the internal config values fperm and dperm which, when set,
394			* will be used to change the permission of a newly created dir or
395			* file with chmod. Considers the influence of the system's umask
396			* setting the values only if needed.
397			*/
398			function init_creationmodes(){
399			global $conf;
400
401			// Legacy support for old umask/dmask scheme
402			unset($conf['dmask']);
403			unset($conf['fmask']);
404			unset($conf['umask']);
405
406			$conf['fperm'] = false;
407			$conf['dperm'] = false;
408
409			// get system umask, fallback to 0 if none available
410			$umask = @umask();
411			if(!$umask) $umask = 0000;
412
413			// check what is set automatically by the system on file creation
414			// and set the fperm param if it's not what we want
415			$auto_fmode = $conf['fmode'] & ~$umask;
416			if($auto_fmode != $conf['fmode']) $conf['fperm'] = $conf['fmode'];
417
418			// check what is set automatically by the system on file creation
419			// and set the dperm param if it's not what we want
420			$auto_dmode = $conf['dmode'] & ~$umask;
421			if($auto_dmode != $conf['dmode']) $conf['dperm'] = $conf['dmode'];
422			}
423
424			/**
425			* Returns the full absolute URL to the directory where
426			* DokuWiki is installed in (includes a trailing slash)
427			*
428			* !! Can not access $_SERVER values through $INPUT
429			* !! here as this function is called before $INPUT is
430			* !! initialized.
431			*
432			* @author Andreas Gohr <[email protected]>
433			*
434			* @param null\|string $abs
435			*
436			* @return string
437			*/
438			function getBaseURL($abs=null){
439			global $conf;
440			//if canonical url enabled always return absolute
441			if(is_null($abs)) $abs = $conf['canonical'];
442
443			if(!empty($conf['basedir'])){
444			$dir = $conf['basedir'];
445			}elseif(substr($_SERVER['SCRIPT_NAME'],-4) == '.php'){
446			$dir = dirname($_SERVER['SCRIPT_NAME']);
447			}elseif(substr($_SERVER['PHP_SELF'],-4) == '.php'){
448			$dir = dirname($_SERVER['PHP_SELF']);
449			}elseif($_SERVER['DOCUMENT_ROOT'] && $_SERVER['SCRIPT_FILENAME']){
450			$dir = preg_replace ('/^'.preg_quote($_SERVER['DOCUMENT_ROOT'],'/').'/','',
451			$_SERVER['SCRIPT_FILENAME']);
452			$dir = dirname('/'.$dir);
453			}else{
454			$dir = '.'; //probably wrong
455			}
456
457			$dir = str_replace('\\','/',$dir); // bugfix for weird WIN behaviour
458			$dir = preg_replace('#//+#','/',"/$dir/"); // ensure leading and trailing slashes
459
460			//handle script in lib/exe dir
461			$dir = preg_replace('!lib/exe/$!','',$dir);
462
463			//handle script in lib/plugins dir
464			$dir = preg_replace('!lib/plugins/.*$!','',$dir);
465
466			//finish here for relative URLs
467			if(!$abs) return $dir;
468
469			//use config if available, trim any slash from end of baseurl to avoid multiple consecutive slashes in the path
470			if(!empty($conf['baseurl'])) return rtrim($conf['baseurl'],'/').$dir;
471
472			//split hostheader into host and port
473			if(isset($_SERVER['HTTP_HOST'])){
474			$parsed_host = parse_url('http://'.$_SERVER['HTTP_HOST']);
475			$host = isset($parsed_host['host']) ? $parsed_host['host'] : null;
476			$port = isset($parsed_host['port']) ? $parsed_host['port'] : null;
477			}elseif(isset($_SERVER['SERVER_NAME'])){
478			$parsed_host = parse_url('http://'.$_SERVER['SERVER_NAME']);
479			$host = isset($parsed_host['host']) ? $parsed_host['host'] : null;
480			$port = isset($parsed_host['port']) ? $parsed_host['port'] : null;
481			}else{
482			$host = php_uname('n');
483			$port = '';
484			}
485
486			if(is_null($port)){
487			$port = '';
488			}
489
490			if(!is_ssl()){
491			$proto = 'http://';
492			if ($port == '80') {
493			$port = '';
494			}
495			}else{
496			$proto = 'https://';
497			if ($port == '443') {
498			$port = '';
499			}
500			}
501
502			if($port !== '') $port = ':'.$port;
503
504			return $proto.$host.$port.$dir;
505			}
506
507			/**
508			* Check if accessed via HTTPS
509			*
510			* Apache leaves ,$_SERVER['HTTPS'] empty when not available, IIS sets it to 'off'.
511			* 'false' and 'disabled' are just guessing
512			*
513			* @returns bool true when SSL is active
514			*/
515			function is_ssl() {
516			// check if we are behind a reverse proxy
517			if(isset($_SERVER['HTTP_X_FORWARDED_PROTO'])) {
518			if($_SERVER['HTTP_X_FORWARDED_PROTO'] == 'https') {
519			return true;
520			} else {
521			return false;
522			}
523			}
524			if(!isset($_SERVER['HTTPS']) \|\|
525			preg_match('/^(\|off\|false\|disabled)$/i', $_SERVER['HTTPS'])) {
526			return false;
527			} else {
528			return true;
529			}
530			}
531
532			/**
533			* checks it is windows OS
534			* @return bool
535			*/
536			function isWindows() {
537			return (strtoupper(substr(PHP_OS, 0, 3)) === 'WIN') ? true : false;
538			}
539
540			/**
541			* print a nice message even if no styles are loaded yet.
542			*
543			* @param integer\|string $msg
544			*/
545			function nice_die($msg){
546			echo<<<EOT
547			<!DOCTYPE html>
548			<html>
549			<head><title>DokuWiki Setup Error</title></head>
550			<body style="font-family: Arial, sans-serif">
551			<div style="width:60%; margin: auto; background-color: #fcc;
552			border: 1px solid #faa; padding: 0.5em 1em;">
553			<h1 style="font-size: 120%">DokuWiki Setup Error</h1>
554			<p>$msg</p>
555			</div>
556			</body>
557			</html>
558			EOT;
559			if(defined('DOKU_UNITTEST')) {
560			throw new RuntimeException('nice_die: '.$msg);
561			}
562			exit(1);
563			}
564
565			/**
566			* A realpath() replacement
567			*
568			* This function behaves similar to PHP's realpath() but does not resolve
569			* symlinks or accesses upper directories
570			*
571			* @author Andreas Gohr <[email protected]>
572			* @author <richpageau at yahoo dot co dot uk>
573			* @link http://php.net/manual/en/function.realpath.php#75992
574			*
575			* @param string $path
576			* @param bool $exists
577			*
578			* @return bool\|string
579			*/
580			function fullpath($path,$exists=false){
581			static $run = 0;
582			$root = '';
583			$iswin = (strtoupper(substr(PHP_OS, 0, 3)) === 'WIN' \|\| !empty($GLOBALS['DOKU_UNITTEST_ASSUME_WINDOWS']));
584
585			// find the (indestructable) root of the path - keeps windows stuff intact
586			if($path[0] == '/'){
587			$root = '/';
588			}elseif($iswin){
589			// match drive letter and UNC paths
590			if(preg_match('!^([a-zA-z]:)(.*)!',$path,$match)){
591			$root = $match[1].'/';
592			$path = $match[2];
593			}else if(preg_match('!^(\\\\\\\\[^\\\\/]+\\\\[^\\\\/]+[\\\\/])(.*)!',$path,$match)){
594			$root = $match[1];
595			$path = $match[2];
596			}
597			}
598			$path = str_replace('\\','/',$path);
599
600			// if the given path wasn't absolute already, prepend the script path and retry
601			if(!$root){
602			$base = dirname($_SERVER['SCRIPT_FILENAME']);
603			$path = $base.'/'.$path;
604			if($run == 0){ // avoid endless recursion when base isn't absolute for some reason
605			$run++;
606			return fullpath($path,$exists);
607			}
608			}
609			$run = 0;
610
611			// canonicalize
612			$path=explode('/', $path);
613			$newpath=array();
614			foreach($path as $p) {
615			if ($p === '' \|\| $p === '.') continue;
616			if ($p==='..') {
617			array_pop($newpath);
618			continue;
619			}
620			array_push($newpath, $p);
621			}
622			$finalpath = $root.implode('/', $newpath);
623
624			// check for existence when needed (except when unit testing)
625			if($exists && !defined('DOKU_UNITTEST') && !file_exists($finalpath)) {
626			return false;
627			}
628			return $finalpath;
629			}
630
631

splitbrain / dokuwiki

init.php ➔ nice_die() A last analyzed 2021-06-08 18:02 UTC

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init.php ➔ nice_die() A
last analyzed 2021-06-08 18:02 UTC