MastodonHelp/web/site/index.php

<?php

define('N',"\n");

function dienice($msg,$ec) {
	global $link;
	if (isset($link) && $link!==false) mysqli_close($link);
	echo($msg);
	exit($ec);
}

$inifp='../conf/mastostart.ini';
$conf=@parse_ini_file($inifp);
if ($conf===false) dienice('Could not open configuration file.'.N,1);
if (!array_key_exists('instpath',$conf)) dienice('Configuration file: «instpath» is not defined.'.N,1);

$path=preg_replace('#\?.*$#','',$_SERVER['REQUEST_URI']);
$path=preg_replace('/^'.preg_quote($conf['instpath'],'/').'/','',$path);
$ndir=preg_match_all('#/#',$path)-1;
$prepath='';
for ($i=0; $i<$ndir; $i++)
	$prepath.='../';
$path=preg_replace('#/+$#','',$path);

$blang='en';
if (array_key_exists('HTTP_ACCEPT_LANGUAGE',$_SERVER)) {
	$langs=[];
	$buff=explode(',',$_SERVER['HTTP_ACCEPT_LANGUAGE']);
	foreach ($buff as $ent) {
		$ent=trim($ent);
		$ent=explode(';',$ent);
		(count($ent)<2) ? $ent[1]=1 : $ent[1]=preg_replace('/^q=/','',$ent[1])+0;
		$ent[0]=locale_canonicalize($ent[0]);
		$langs[$ent[0]]=$ent[1];
	}
	arsort($langs);
	$blang=array_key_first($langs);
}

$supplangs=['ca','de','en','es','fr','gl','it','pt_BR','uk'];// when adding a language code here, it is necessary to add it also to "$menu" in this same file, to "$hlmap" in stats.php, to "$hitslang" and "$langs" in ../clitools/mustool.php, to "langs" in ../clitools/updtrans.bash (if missing), to function "getlangid" in ../clitools/getinstinfo.php; and to run "../clitools/addlang.php <new language code>" locally and on the server
$dlang=null;
if (preg_match('#/('.implode('|',$supplangs).')$#',$path,$lang)===1) {
	$dlang=$lang[1];
	$path=preg_replace('#/[^/]+$#','',$path);
} elseif (array_key_exists('HTTP_ACCEPT_LANGUAGE',$_SERVER)) {
	foreach ($langs as $lang=>$val) {
		if (in_array($lang,$supplangs)) {
			$dlang=$lang;
			break;
		}
	}
	if (is_null($dlang)) {
		foreach ($langs as $lang=>$val) {
			foreach ($supplangs as $slang) {
				if (preg_match('/^'.preg_quote($lang,'/').'/',$slang)) {
					$dlang=$slang;
					break(2);
				}
			}
		}
	}
}
if (is_null($dlang)) $dlang='en';

$locale=$dlang;
// il blocale è per non dover avere installate tutte le locale corrispondenti
$blocale='en_US.UTF-8';
//putenv('LC_ALL='.$blocale);
setlocale(LC_ALL,$blocale);
bindtextdomain('masthelp','./locale/'.$locale);
textdomain('masthelp');

$needstrans=false;

$menu=array(
	'guide'=>array('liadd'=>null, 'href'=>$conf['instpath'].'/'.$dlang, 'title'=>_('Guide'), 'selected'=>false, 'submenu'=>null),
	'instances'=>array('liadd'=>null, 'href'=>$conf['instpath'].'/instances/'.$dlang, 'title'=>_('Instances'), 'selected'=>false, 'submenu'=>null),
	'links'=>array('liadd'=>null, 'href'=>$conf['instpath'].'/links/'.$dlang, 'title'=>_('Links'), 'selected'=>false, 'submenu'=>null),
	'about'=>array('liadd'=>null, 'href'=>$conf['instpath'].'/about/'.$dlang, 'title'=>_('About'), 'selected'=>false, 'submenu'=>array(
			'stats'=>array('liadd'=>null, 'href'=>$conf['instpath'].'/stats/'.$dlang, 'title'=>_('Statistics'), 'selected'=>false, 'submenu'=>null),
			'contribute'=>array('liadd'=>null, 'href'=>$conf['instpath'].'/contribute/'.$dlang, 'title'=>_('Contribute'), 'selected'=>false, 'submenu'=>null)
		)
	),
	'language'=>array('liadd'=>null, 'href'=>null, 'title'=>_('Language'), 'selected'=>false, 'submenu'=>array(
			'ca'=>array('liadd'=>null, 'href'=>null, 'title'=>'Català', 'selected'=>false, 'submenu'=>null),
			'de'=>array('liadd'=>null, 'href'=>null, 'title'=>'Deutsch', 'selected'=>false, 'submenu'=>null),
			'en'=>array('liadd'=>null, 'href'=>null, 'title'=>'English', 'selected'=>false, 'submenu'=>null),
/*			'aa'=>array('liadd'=>null, 'href'=>null, 'title'=>'Prova', 'selected'=>false, 'submenu'=>array(
					'bb'=>array('liadd'=>null, 'href'=>$conf['instpath'].'/stats/'.$dlang, 'title'=>'Statistics', 'selected'=>false, 'submenu'=>null),
					'cc'=>array('liadd'=>null, 'href'=>$conf['instpath'].'/contribute/'.$dlang, 'title'=>'Contribute', 'selected'=>false, 'submenu'=>null)
				)
			),*/
			'es'=>array('liadd'=>null, 'href'=>null, 'title'=>'Español', 'selected'=>false, 'submenu'=>null),
			'fr'=>array('liadd'=>null, 'href'=>null, 'title'=>'Français', 'selected'=>false, 'submenu'=>null),
			'gl'=>array('liadd'=>null, 'href'=>null, 'title'=>'Galego', 'selected'=>false, 'submenu'=>null),
			'it'=>array('liadd'=>null, 'href'=>null, 'title'=>'Italiano', 'selected'=>false, 'submenu'=>null),
			'pt_BR'=>array('liadd'=>null, 'href'=>null, 'title'=>'Português (BR)', 'selected'=>false, 'submenu'=>null),
			'uk'=>array('liadd'=>null, 'href'=>null, 'title'=>'Українська', 'selected'=>false, 'submenu'=>null)
		)
	)
);

foreach ($supplangs as $lang)
	$menu['language']['submenu'][$lang]['href']=$conf['instpath'].$path.'/'.$lang;

$menu['language']['submenu'][$dlang]['href']=null;
$menu['language']['submenu'][$dlang]['liadd']=null;
$menu['language']['submenu'][$dlang]['selected']=true;

$cont=array();

$cont['css']=array('theme.css','menu.css');
$cont['js']=array('menu.js');
$cont['bodyadd']='';

switch($path) {

	case '':
	$cont['fp']='home.php';
	$cont['atit']=' - '._('Guide');
	$cont['desc']=_('A thorough introduction to Mastodon');
	$cont['js'][]='shsum.js';
	$cont['js'][]='guideanchors.js';
	$cont['js'][]='scrolltrack.js';
	$cont['bodyadd']=' onscroll="scrolltrack()"';
	$menu['guide']['href']=null;
	$menu['guide']['selected']=true;
	$url='home';
	if (in_array($dlang,array('ca'))) $needstrans=true;
	break;

	case '/instances':
	$cont['fp']='instances.php';
	$cont['atit']=' - '._('Instances');
	$cont['desc']=_('Mastodon instances');
	$cont['css'][]='instances.css';
	$menu['instances']['href']=null;
	$menu['instances']['selected']=true;
	$url='instances';
	if (in_array($dlang,array('ca','es'))) $needstrans=true;
	break;

	case '/users':
	$cont['fp']='users.php';
	$cont['atit']=' - '._('Users');
	$cont['desc']=_('Directory of Mastodon users');
	$cont['css'][]='instances.css';
	/*$menu['instances']['href']=null;
	$menu['instances']['selected']=true;*/
	$url='users';
	break;

	case '/about':
	$cont['fp']='about.php';
	$cont['atit']=' - '._('About');
	$cont['desc']=_('Info about Mastodon Help’s authors, contributors, license');
	$menu['about']['href']=null;
	$menu['about']['selected']=true;
	$url='about';
	if (in_array($dlang,array('ca','es'))) $needstrans=true;
	break;

	case '/stats':
	$cont['fp']='stats.php';
	$cont['atit']=' - '._('Statistics');
	$cont['desc']=_('Statistics about Mastodon Help');
	$cont['css'][]='stats.css';
	$menu['about']['selected']=true;
	$menu['about']['submenu']['stats']['href']=null;
	$menu['about']['submenu']['stats']['selected']=true;
	$url='stats';
	if (in_array($dlang,array('ca','es'))) $needstrans=true;
	break;

	case '/contribute':
	$cont['fp']='contribute.php';
	$cont['atit']=' - '._('Contribute');
	$cont['desc']=_('Contribute to Mastodon Help development');
	$menu['about']['selected']=true;
	$menu['about']['submenu']['contribute']['href']=null;
	$menu['about']['submenu']['contribute']['selected']=true;
	$url='contribute';
	if (in_array($dlang,array('ca','es'))) $needstrans=true;
	break;

	default:
	http_response_code(404);
	$cont['fp']='404.php';
	$cont['atit']=' - '._('Resource not found');
	$cont['desc']=_('Resource not found');
	$url='404';
	/*$nffp='404.log';
	$nff=@fopen($nffp,'a');
	if ($nff) {
		fwrite($nff,$_SERVER['REQUEST_URI'].N);
		fclose($nff);
	} else {
		echo('Mannaggia!');
	}*/
	if (in_array($dlang,array('ca','es'))) $needstrans=true;
	break;
}
$cont['mtit']=substr($cont['atit'],3);

$uid=[];
$uid[]=$_SERVER['REMOTE_ADDR'];
if (array_key_exists('HTTP_USER_AGENT',$_SERVER)) $uid[]=$_SERVER['HTTP_USER_AGENT'];
if (array_key_exists('HTTP_ACCEPT',$_SERVER)) $uid[]=$_SERVER['HTTP_ACCEPT'];
if (array_key_exists('HTTP_ACCEPT_LANGUAGE',$_SERVER)) $uid[]=$_SERVER['HTTP_ACCEPT_LANGUAGE'];
if (array_key_exists('HTTP_ACCEPT_ENCODING',$_SERVER)) $uid[]=$_SERVER['HTTP_ACCEPT_ENCODING'];
$uid=md5(implode('|',$uid));

try { $link=mysqli_connect($conf['db_host'],$conf['db_user_name'],$conf['db_user_password'],$conf['db_name'],$conf['db_port'],$conf['db_socket']); }
catch (Exception $error) { dienice(_('Couldn’t connect to database: ').mysqli_connect_error().' ['.mysqli_connect_errno().'].',2,false); }
if ($link===false) dienice(_('Couldn’t connect to database: ').mysqli_connect_error().' ['.mysqli_connect_errno().'].',2,false);
mysqli_set_charset($link,'utf8mb4');
mysqli_query($link,'INSERT INTO ZHits (UID,URL,Lang,TS) VALUES ("'.$uid.'","'.$url.'","'.$dlang.'",'.time().')') or dienice(__LINE__.': '.mysqli_error($link),2,true);
mysqli_close($link);

$menuout='';

function buildmenu($menu,$submenu=false) {
	global $menuout;
	foreach ($menu as $key=>$arr) {
		$liclasses=array();
		$menuout.='<li';
		if (!is_null($arr['liadd'])) $menuout.=' '.$arr['liadd'];
		if ($arr['selected']) $liclasses[]='hil';
		if (!is_null($arr['submenu'])) {
			$menuout.=' onmouseover="chulsh(this,true)" onmouseout="chulsh(this,false)"';
			($submenu) ? $liclasses[]='lipr' : $liclasses[]='lipd';
		}
		if (count($liclasses)>0) $menuout.=' class="'.implode(' ',$liclasses).'"';
		$menuout.='>';
		if (!is_null($arr['href'])) {
			$menuout.='<a href="'.$arr['href'].'">'.$arr['title'].'</a>';
		} else {
			$menuout.=$arr['title'];
		}
		if (!is_null($arr['submenu'])) {
			//$menuout.='<img src="/imgs/icona-32.png" width="5" height="5" style="float:right;">';
			($submenu) ? $class='ulb' : $class='ula';
			$menuout.=N.'<ul class="'.$class.'" onmouseover="ulsh(this,true)" onmouseout="ulsh(this,false)">'.N;
			buildmenu($arr['submenu'],true);
			$menuout.='</ul>'.N;
		}
		$menuout.='</li>'.N;
	}
}

buildmenu($menu);

//echo(htmlentities($menuout));

$cjrand=rand(0,999999);
//$cjrand='0.1';

echo('<!DOCTYPE HTML>
<html lang="'.$dlang.'">
<head>
<title>Mastodon Help'.$cont['atit'].'</title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<meta name="description" content="'.$cont['desc'].'">
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no">
<meta property="og:image" content="'.$prepath.'imgs/ogimage03.png">
<link rel="icon" type="image/png" href="'.$prepath.'imgs/icona-32.png" sizes="32x32">
<link rel="icon" type="image/png" href="'.$prepath.'imgs/icona-192.png" sizes="192x192">
<link rel="icon" type="image/png" href="'.$prepath.'imgs/icona-512.png" sizes="512x512">
<link rel="apple-touch-icon-precomposed" href="'.$prepath.'imgs/icona-180.png">'.N);

foreach ($cont['css'] as $val)
	echo('<link rel="stylesheet" type="text/css" href="'.$prepath.'css/'.$val.'?v='.$cjrand.'">'.N);
foreach ($cont['js'] as $val)
	echo('<script language="JavaScript" src="'.$prepath.'js/'.$val.'?v='.$cjrand.'"></script>'.N);

echo('</head>
<body'.$cont['bodyadd'].'>
<nav>
<div id="hmenu">
<img src="'.$prepath.'imgs/menuicon_inactive.svg" id="menuicon" onclick="swmenu()">
<div id="menutit">Mastodon Help'.$cont['atit'].'</div>
<div id="menu">
<ul>
'.$menuout.'
</ul>
</div>
</div>'.N);

require($cont['fp']);

//if ($needstrans) printf('<div id="transd">'._('This translation is missing, incomplete or not up-to-date. Please click <a href="/contribute/%s">here</a> if you’d like to help, or <span class="transc" onclick="document.getElementById(\'transd\').style.display=\'none\'">here</span> to close this message').'</div>'.N,$dlang);

echo('</body>
</html>'.N);

?>