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chat.php
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chat.php
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<?php
/*
* LE CHAT-PHP - a PHP Chat based on LE CHAT - Main program
*
* Copyright (C) 2015-2021 Daniel Winzen <daniel@danwin1210.me>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/*
* status codes
* 0 - Kicked/Banned
* 1 - Guest
* 2 - Applicant
* 3 - Member
* 4 - System message
* 5 - Moderator
* 6 - Super-Moderator
* 7 - Admin
* 8 - Super-Admin
* 9 - Private messages
*/
// initialize and load variables/configuration
load_config();
$I=[];// Translations
$L=[];// Languages
$U=[];// This user data
$db = null;// Database connection
$memcached = null;// Memcached connection
$language = LANG;// user selected language
$styles = []; //css styles
$session = $_REQUEST['session'] ?? ''; //requested session
// set session variable to cookie if cookies are enabled
if(!isset($_REQUEST['session']) && isset($_COOKIE[COOKIENAME])){
$session = $_COOKIE[COOKIENAME];
}
$session = preg_replace('/[^0-9a-zA-Z]/', '', $session);
load_lang();
check_db();
cron();
route();
// main program: decide what to do based on queries
function route(){
global $U;
if(!isset($_REQUEST['action'])){
send_login();
}elseif($_REQUEST['action']==='view'){
check_session();
send_messages();
}elseif($_REQUEST['action']==='redirect' && !empty($_GET['url'])){
send_redirect($_GET['url']);
}elseif($_REQUEST['action']==='wait'){
parse_sessions();
send_waiting_room();
}elseif($_REQUEST['action']==='post'){
check_session();
if(isset($_POST['kick']) && isset($_POST['sendto']) && $_POST['sendto']!=='s _'){
if($U['status']>=5 || ($U['status']>=3 && (get_setting('memkickalways') || (get_count_mods()==0 && get_setting('memkick'))))){
if(isset($_POST['what']) && $_POST['what']==='purge'){
kick_chatter([$_POST['sendto']], $_POST['message'], true);
}else{
kick_chatter([$_POST['sendto']], $_POST['message'], false);
}
}
}elseif(isset($_POST['message']) && isset($_POST['sendto'])){
send_post(validate_input());
}
send_post();
}elseif($_REQUEST['action']==='login'){
check_login();
show_fails();
send_frameset();
}elseif($_REQUEST['action']==='controls'){
check_session();
send_controls();
}elseif($_REQUEST['action']==='greeting'){
check_session();
send_greeting();
}elseif($_REQUEST['action']==='delete'){
check_session();
if(!isset($_POST['what'])){
}elseif($_POST['what']==='all'){
if(isset($_POST['confirm'])){
del_all_messages($U['nickname'], (int) ($U['status']==1 ? $U['entry'] : 0));
}else{
send_del_confirm();
}
}elseif($_POST['what']==='last'){
del_last_message();
}
send_post();
}elseif($_REQUEST['action']==='profile'){
check_session();
$arg='';
if(!isset($_POST['do'])){
}elseif($_POST['do']==='save'){
$arg=save_profile();
}elseif($_POST['do']==='delete'){
if(isset($_POST['confirm'])){
delete_account();
}else{
send_delete_account();
}
}
send_profile($arg);
}elseif($_REQUEST['action']==='logout' && $_SERVER['REQUEST_METHOD'] === 'POST'){
kill_session();
send_logout();
}elseif($_REQUEST['action']==='colours'){
check_session();
send_colours();
}elseif($_REQUEST['action']==='notes'){
check_session();
if(!isset($_POST['do'])){
}elseif($_POST['do']==='admin' && $U['status']>6){
send_notes(0);
}elseif($_POST['do']==='staff' && $U['status']>=5){
send_notes(1);
}elseif($_POST['do']==='public' && $U['status']>=3){
send_notes(3);
}
if($U['status']<3 || (!get_setting('personalnotes') && !get_setting('publicnotes'))){
send_access_denied();
}
send_notes(2);
}elseif($_REQUEST['action']==='help'){
check_session();
send_help();
}elseif($_REQUEST['action']==='viewpublicnotes'){
check_session();
view_publicnotes();
}elseif($_REQUEST['action']==='inbox'){
check_session();
if(isset($_POST['do'])){
clean_inbox_selected();
}
send_inbox();
}elseif($_REQUEST['action']==='download'){
send_download();
}elseif($_REQUEST['action']==='admin'){
check_session();
send_admin(route_admin());
}elseif($_REQUEST['action']==='setup'){
route_setup();
}elseif($_REQUEST['action']==='sa_password_reset'){
send_sa_password_reset();
}else{
send_login();
}
}
function route_admin() : string {
global $U, $db;
if($U['status']<5){
send_access_denied();
}
if(!isset($_POST['do'])){
return '';
}elseif($_POST['do']==='clean'){
if($_POST['what']==='choose'){
send_choose_messages();
}elseif($_POST['what']==='selected'){
clean_selected((int) $U['status'], $U['nickname']);
}elseif($_POST['what']==='room'){
clean_room();
}elseif($_POST['what']==='nick'){
$stmt=$db->prepare('SELECT null FROM ' . PREFIX . 'members WHERE nickname=? AND status>=?;');
$stmt->execute([$_POST['nickname'], $U['status']]);
if(!$stmt->fetch(PDO::FETCH_ASSOC)){
del_all_messages($_POST['nickname'], 0);
}
}
}elseif($_POST['do']==='kick'){
if(isset($_POST['name'])){
if(isset($_POST['what']) && $_POST['what']==='purge'){
kick_chatter($_POST['name'], $_POST['kickmessage'], true);
}else{
kick_chatter($_POST['name'], $_POST['kickmessage'], false);
}
}
}elseif($_POST['do']==='logout'){
if(isset($_POST['name'])){
logout_chatter($_POST['name']);
}
}elseif($_POST['do']==='sessions'){
if(isset($_POST['kick']) && isset($_POST['nick'])){
kick_chatter([$_POST['nick']], '', false);
}elseif(isset($_POST['logout']) && isset($_POST['nick'])){
logout_chatter([$_POST['nick']]);
}
send_sessions();
}elseif($_POST['do']==='register'){
return register_guest(3, $_POST['name']);
}elseif($_POST['do']==='superguest'){
return register_guest(2, $_POST['name']);
}elseif($_POST['do']==='status'){
return change_status($_POST['name'], $_POST['set']);
}elseif($_POST['do']==='regnew'){
return register_new($_POST['name'], $_POST['pass']);
}elseif($_POST['do']==='approve'){
approve_session();
send_approve_waiting();
}elseif($_POST['do']==='guestaccess'){
if(isset($_POST['guestaccess']) && preg_match('/^[0123]$/', $_POST['guestaccess'])){
update_setting('guestaccess', $_POST['guestaccess']);
}
}elseif($_POST['do']==='filter'){
send_filter(manage_filter());
}elseif($_POST['do']==='linkfilter'){
send_linkfilter(manage_linkfilter());
}elseif($_POST['do']==='topic'){
if(isset($_POST['topic'])){
update_setting('topic', htmlspecialchars($_POST['topic']));
}
}elseif($_POST['do']==='passreset'){
return passreset($_POST['name'], $_POST['pass']);
}
return '';
}
function route_setup(){
global $U;
if(!valid_admin()){
send_alogin();
}
$C['bool_settings']=['suguests', 'imgembed', 'timestamps', 'trackip', 'memkick', 'memkickalways', 'forceredirect', 'incognito', 'sendmail', 'modfallback', 'disablepm', 'eninbox', 'enablegreeting', 'sortupdown', 'hidechatters', 'personalnotes', 'publicnotes', 'filtermodkick', 'namedoers'];
$C['colour_settings']=['colbg', 'coltxt'];
$C['msg_settings']=['msgenter', 'msgexit', 'msgmemreg', 'msgsureg', 'msgkick', 'msgmultikick', 'msgallkick', 'msgclean', 'msgsendall', 'msgsendmem', 'msgsendmod', 'msgsendadm', 'msgsendprv', 'msgattache'];
$C['number_settings']=['memberexpire', 'guestexpire', 'kickpenalty', 'entrywait', 'captchatime', 'messageexpire', 'messagelimit', 'maxmessage', 'maxname', 'minpass', 'defaultrefresh', 'numnotes', 'maxuploadsize', 'enfileupload'];
$C['textarea_settings']=['rulestxt', 'css', 'disabletext'];
$C['text_settings']=['dateformat', 'captchachars', 'redirect', 'chatname', 'mailsender', 'mailreceiver', 'nickregex', 'passregex', 'externalcss', 'metadescription', 'sysmessagetxt'];
$C['settings']=array_merge(['guestaccess', 'englobalpass', 'globalpass', 'captcha', 'dismemcaptcha', 'topic', 'guestreg', 'defaulttz'], $C['bool_settings'], $C['colour_settings'], $C['msg_settings'], $C['number_settings'], $C['textarea_settings'], $C['text_settings']); // All settings in the database
if(!isset($_POST['do'])){
}elseif($_POST['do']==='save'){
save_setup($C);
}elseif($_POST['do']==='backup' && $U['status']==8){
send_backup($C);
}elseif($_POST['do']==='restore' && $U['status']==8){
restore_backup($C);
send_backup($C);
}elseif($_POST['do']==='destroy' && $U['status']==8){
if(isset($_POST['confirm'])){
destroy_chat($C);
}else{
send_destroy_chat();
}
}
send_setup($C);
}
// html output subs
function prepare_stylesheets(bool $init = false){
global $U, $db, $styles;
$styles['fatal_error'] = 'body{background-color:#000000;color:#FF0033}';
$styles['default'] = 'body,iframe{background-color:#000000;color:#FFFFFF;font-size:14px;text-align:center}';
$styles['default'] .= 'a:visited{color:#B33CB4} a:link{color:#00A2D4} a:active{color:#55A2D4} #messages{word-wrap:break-word}';
$styles['default'] .= 'input,select,textarea{color:#FFFFFF;background-color:#000000} .messages a img{width:15%} .messages a:hover img{width:35%} ';
$styles['default'] .= '.error{color:#FF0033;text-align:left} .delbutton{background-color:#660000} .backbutton{background-color:#004400} #exitbutton{background-color:#AA0000} ';
$styles['default'] .= '.setup table table,.admin table table,.profile table table{width:100%;text-align:left} ';
$styles['default'] .= '.alogin table,.init table,.destroy_chat table,.delete_account table,.sessions table,.filter table,.linkfilter table,.notes table,.approve_waiting table,.del_confirm table,.profile table,.admin table,.backup table,.setup table{margin-left:auto;margin-right:auto} ';
$styles['default'] .= '.setup table table table,.admin table table table,.profile table table table{border-spacing:0px;margin-left:auto;margin-right:unset;width:unset} ';
$styles['default'] .= '.setup table table td,.backup #restoresubmit,.backup #backupsubmit,.admin table table td,.profile table table td,.login td+td,.alogin td+td{text-align:right} ';
$styles['default'] .= '.init td,.backup #restorecheck td,.admin #clean td,.admin #regnew td,.session td,.messages,.inbox,.approve_waiting td,.choose_messages,.greeting,.help,.login td,.alogin td{text-align:left} ';
$styles['default'] .= '.messages #chatters{max-height:100px;overflow-y:auto} .messages #chatters .messages #chatters table{border-spacing:0px} ';
$styles['default'] .= '.messages #chatters th,.messages #chatters td,.post #firstline{vertical-align:top} ';
$styles['default'] .= '.approve_waiting #action td:only-child,.help #backcredit,.login td:only-child,.alogin td:only-child,.init td:only-child{text-align:center} .sessions td,.sessions th,.approve_waiting td,.approve_waiting th{padding: 5px} ';
$styles['default'] .= '.sessions td td{padding: 1px} .messages #bottom_link{position:fixed;top:0.5em;right:0.5em} .messages #top_link{position:fixed;bottom:0.5em;right:0.5em} ';
$styles['default'] .= '.post table,.controls table,.login table{border-spacing:0px;margin-left:auto;margin-right:auto} .login table{border:2px solid} .controls{overflow-y:none} ';
$styles['default'] .= '#manualrefresh{display:block;position:fixed;text-align:center;left:25%;width:50%;top:-200%;animation:timeout_messages ';
if(isset($U['refresh'])){
$styles['default'] .= $U['refresh']+20;
}else{
$styles['default'] .='160';
}
$styles['default'] .= 's forwards;z-index:2;background-color:#500000;border:2px solid #ff0000} ';
$styles['default'] .= '@keyframes timeout_messages{0%{top:-200%} 99%{top:-200%} 100%{top:0%}} ';
$styles['default'] .= '.notes textarea{height:80vh;width:80%} iframe{width:100%;height:100%;margin:0;padding:0;border:none}';
$styles['default'] .= '.msg{max-height:180px;overflow-y:auto}';
if($init || ! $db instanceof PDO){
return;
}
$css=get_setting('css');
$coltxt=get_setting('coltxt');
if(!empty($U['bgcolour'])){
$colbg=$U['bgcolour'];
}else{
$colbg=get_setting('colbg');
}
$styles['custom'] = preg_replace("/(\r?\n|\r\n?)/u", '', "body,iframe{background-color:#$colbg;color:#$coltxt} $css");
}
function print_stylesheet(bool $init = false){
global $styles;
//default css
echo "<style>$styles[default]</style>";
if($init){
return;
}
//overwrite with custom css
echo "<style>$styles[custom]</style>";
}
function print_end(){
echo '</body></html>';
exit;
}
function credit() : string {
return '<small><br><br><a target="_blank" href="https://github.com/DanWin/le-chat-php" rel="noopener">LE CHAT-PHP - ' . VERSION . '</a></small>';
}
function meta_html() : string {
global $U, $db;
$colbg = '000000';
$description = '';
if(!empty($U['bgcolour'])){
$colbg = $U['bgcolour'];
}else{
if($db instanceof PDO){
$colbg = get_setting('colbg');
$description = '<meta name="description" content="'.htmlspecialchars(get_setting('metadescription')).'">';
}
}
return '<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta name="referrer" content="no-referrer"><meta name="viewport" content="width=device-width, initial-scale=1, user-scalable=yes"><meta name="theme-color" content="#'.$colbg.'"><meta name="msapplication-TileColor" content="#'.$colbg.'">' . $description;
}
function form(string $action, string $do='') : string {
global $language, $session;
$form="<form action=\"$_SERVER[SCRIPT_NAME]\" enctype=\"multipart/form-data\" method=\"post\">".hidden('lang', $language).hidden('nc', substr(time(), -6)).hidden('action', $action);
if(!empty($session)){
$form.=hidden('session', $session);
}
if($do!==''){
$form.=hidden('do', $do);
}
return $form;
}
function form_target(string $target, string $action, string $do='') : string {
global $language, $session;
$form="<form action=\"$_SERVER[SCRIPT_NAME]\" enctype=\"multipart/form-data\" method=\"post\" target=\"$target\">".hidden('lang', $language).hidden('nc', substr(time(), -6)).hidden('action', $action);
if(!empty($session)){
$form.=hidden('session', $session);
}
if($do!==''){
$form.=hidden('do', $do);
}
return $form;
}
function hidden(string $name='', string $value='') : string {
return "<input type=\"hidden\" name=\"$name\" value=\"$value\">";
}
function submit($value='', $extra_attribute='') : string {
return "<input type=\"submit\" value=\"$value\" $extra_attribute>";
}
function thr(){
echo '<tr><td><hr></td></tr>';
}
function print_start(string $class='', int $ref=0, string $url=''){
global $I, $language;
prepare_stylesheets($class === 'init');
send_headers();
if(!empty($url)){
$url=str_replace('&', '&', $url);// Don't escape "&" in URLs here, it breaks some (older) browsers and js refresh!
header("Refresh: $ref; URL=$url");
}
echo '<!DOCTYPE html><html lang="'.$language.'"><head>'.meta_html();
if(!empty($url)){
echo "<meta http-equiv=\"Refresh\" content=\"$ref; URL=$url\">";
}
if($class==='init'){
echo "<title>$I[init]</title>";
print_stylesheet(true);
}else{
echo '<title>'.get_setting('chatname').'</title>';
print_stylesheet();
}
echo "</head><body class=\"$class\">";
if($class!=='init' && ($externalcss=get_setting('externalcss'))!=''){
//external css - in body to make it non-renderblocking
echo "<link rel=\"stylesheet\" type=\"text/css\" href=\"$externalcss\">";
}
}
function send_redirect(string $url){
global $I;
$url=trim(htmlspecialchars_decode(rawurldecode($url)));
preg_match('~^(.*)://~u', $url, $match);
$url=preg_replace('~^(.*)://~u', '', $url);
$escaped=htmlspecialchars($url);
if(isset($match[1]) && ($match[1]==='http' || $match[1]==='https')){
print_start('redirect', 0, $match[0].$escaped);
echo "<p>$I[redirectto] <a href=\"$match[0]$escaped\">$match[0]$escaped</a>.</p>";
}else{
print_start('redirect');
if(!isset($match[0])){
$match[0]='';
}
if(preg_match('~^(javascript|blob|data):~', $url)){
echo "<p>$I[dangerousnonhttp] $match[0]$escaped</p>";
} else {
echo "<p>$I[nonhttp] <a href=\"$match[0]$escaped\">$match[0]$escaped</a>.</p>";
}
echo "<p>$I[httpredir] <a href=\"http://$escaped\">http://$escaped</a>.</p>";
}
print_end();
}
function send_access_denied(){
global $I, $U;
http_response_code(403);
print_start('access_denied');
echo "<h1>$I[accessdenied]</h1>".sprintf($I['loggedinas'], style_this(htmlspecialchars($U['nickname']), $U['style'])).'<br>';
echo form('logout');
echo submit($I['logout'], 'id="exitbutton"')."</form>";
print_end();
}
function send_captcha(){
global $I, $db, $memcached;
$difficulty=(int) get_setting('captcha');
if($difficulty===0 || !extension_loaded('gd')){
return;
}
$captchachars=get_setting('captchachars');
$length=strlen($captchachars)-1;
$code='';
for($i=0;$i<5;++$i){
$code.=$captchachars[mt_rand(0, $length)];
}
$randid=mt_rand();
$time=time();
if(MEMCACHED){
$memcached->set(DBNAME . '-' . PREFIX . "captcha-$randid", $code, get_setting('captchatime'));
}else{
$stmt=$db->prepare('INSERT INTO ' . PREFIX . 'captcha (id, time, code) VALUES (?, ?, ?);');
$stmt->execute([$randid, $time, $code]);
}
echo "<tr id=\"captcha\"><td>$I[copy]<br>";
if($difficulty===1){
$im=imagecreatetruecolor(55, 24);
$bg=imagecolorallocate($im, 0, 0, 0);
$fg=imagecolorallocate($im, 255, 255, 255);
imagefill($im, 0, 0, $bg);
imagestring($im, 5, 5, 5, $code, $fg);
echo '<img alt="" width="55" height="24" src="data:image/gif;base64,';
}elseif($difficulty===2){
$im=imagecreatetruecolor(55, 24);
$bg=imagecolorallocate($im, 0, 0, 0);
$fg=imagecolorallocate($im, 255, 255, 255);
imagefill($im, 0, 0, $bg);
imagestring($im, 5, 5, 5, $code, $fg);
$line=imagecolorallocate($im, 255, 255, 255);
for($i=0;$i<2;++$i){
imageline($im, 0, mt_rand(0, 24), 55, mt_rand(0, 24), $line);
}
$dots=imagecolorallocate($im, 255, 255, 255);
for($i=0;$i<100;++$i){
imagesetpixel($im, mt_rand(0, 55), mt_rand(0, 24), $dots);
}
echo '<img alt="" width="55" height="24" src="data:image/gif;base64,';
}else{
$im=imagecreatetruecolor(150, 200);
$bg=imagecolorallocate($im, 0, 0, 0);
$fg=imagecolorallocate($im, 255, 255, 255);
imagefill($im, 0, 0, $bg);
$chars=[];
$x = $y = 0;
for($i=0;$i<10;++$i){
$found=false;
while(!$found){
$x=mt_rand(10, 140);
$y=mt_rand(10, 180);
$found=true;
foreach($chars as $char){
if($char['x']>=$x && ($char['x']-$x)<25){
$found=false;
}elseif($char['x']<$x && ($x-$char['x'])<25){
$found=false;
}
if(!$found){
if($char['y']>=$y && ($char['y']-$y)<25){
break;
}elseif($char['y']<$y && ($y-$char['y'])<25){
break;
}else{
$found=true;
}
}
}
}
$chars[]=['x', 'y'];
$chars[$i]['x']=$x;
$chars[$i]['y']=$y;
if($i<5){
imagechar($im, 5, $chars[$i]['x'], $chars[$i]['y'], $captchachars[mt_rand(0, $length)], $fg);
}else{
imagechar($im, 5, $chars[$i]['x'], $chars[$i]['y'], $code[$i-5], $fg);
}
}
$follow=imagecolorallocate($im, 200, 0, 0);
imagearc($im, $chars[5]['x']+4, $chars[5]['y']+8, 16, 16, 0, 360, $follow);
for($i=5;$i<9;++$i){
imageline($im, $chars[$i]['x']+4, $chars[$i]['y']+8, $chars[$i+1]['x']+4, $chars[$i+1]['y']+8, $follow);
}
$line=imagecolorallocate($im, 255, 255, 255);
for($i=0;$i<5;++$i){
imageline($im, 0, mt_rand(0, 200), 150, mt_rand(0, 200), $line);
}
$dots=imagecolorallocate($im, 255, 255, 255);
for($i=0;$i<1000;++$i){
imagesetpixel($im, mt_rand(0, 150), mt_rand(0, 200), $dots);
}
echo '<img alt="" width="150" height="200" src="data:image/gif;base64,';
}
ob_start();
imagegif($im);
imagedestroy($im);
echo base64_encode(ob_get_clean()).'">';
echo '</td><td>'.hidden('challenge', $randid).'<input type="text" name="captcha" size="15" autocomplete="off" required></td></tr>';
}
function send_setup(array $C){
global $I, $U;
print_start('setup');
echo "<h2>$I[setup]</h2>".form('setup', 'save');
echo '<table id="guestaccess">';
thr();
$ga=(int) get_setting('guestaccess');
echo "<tr><td><table><tr><th>$I[guestacc]</th><td>";
echo '<select name="guestaccess">';
echo '<option value="1"';
if($ga===1){
echo ' selected';
}
echo ">$I[guestallow]</option>";
echo '<option value="2"';
if($ga===2){
echo ' selected';
}
echo ">$I[guestwait]</option>";
echo '<option value="3"';
if($ga===3){
echo ' selected';
}
echo ">$I[adminallow]</option>";
echo '<option value="0"';
if($ga===0){
echo ' selected';
}
echo ">$I[guestdisallow]</option>";
echo '<option value="4"';
if($ga===4){
echo ' selected';
}
echo ">$I[disablechat]</option>";
echo '</select></td></tr></table></td></tr>';
thr();
$englobal=(int) get_setting('englobalpass');
echo "<tr><td><table id=\"globalpass\"><tr><th>$I[globalloginpass]</th><td>";
echo '<table>';
echo '<tr><td><select name="englobalpass">';
echo '<option value="0"';
if($englobal===0){
echo ' selected';
}
echo ">$I[disabled]</option>";
echo '<option value="1"';
if($englobal===1){
echo ' selected';
}
echo ">$I[enabled]</option>";
echo '<option value="2"';
if($englobal===2){
echo ' selected';
}
echo ">$I[onlyguests]</option>";
echo '</select></td><td> </td>';
echo '<td><input type="text" name="globalpass" value="'.htmlspecialchars(get_setting('globalpass')).'"></td></tr>';
echo '</table></td></tr></table></td></tr>';
thr();
$ga=(int) get_setting('guestreg');
echo "<tr><td><table id=\"guestreg\"><tr><th>$I[guestreg]</th><td>";
echo '<select name="guestreg">';
echo '<option value="0"';
if($ga===0){
echo ' selected';
}
echo ">$I[disabled]</option>";
echo '<option value="1"';
if($ga===1){
echo ' selected';
}
echo ">$I[assuguest]</option>";
echo '<option value="2"';
if($ga===2){
echo ' selected';
}
echo ">$I[asmember]</option>";
echo '</select></td></tr></table></td></tr>';
thr();
echo "<tr><td><table id=\"sysmessages\"><tr><th>$I[sysmessages]</th><td>";
echo '<table>';
foreach($C['msg_settings'] as $setting){
echo "<tr><td> $I[$setting]</td><td> <input type=\"text\" name=\"$setting\" value=\"".get_setting($setting).'"></td></tr>';
}
echo '</table></td></tr></table></td></tr>';
foreach($C['text_settings'] as $setting){
thr();
echo "<tr><td><table id=\"$setting\"><tr><th>".$I[$setting].'</th><td>';
echo "<input type=\"text\" name=\"$setting\" value=\"".htmlspecialchars(get_setting($setting)).'">';
echo '</td></tr></table></td></tr>';
}
foreach($C['colour_settings'] as $setting){
thr();
echo "<tr><td><table id=\"$setting\"><tr><th>".$I[$setting].'</th><td>';
echo "<input type=\"color\" name=\"$setting\" value=\"#".htmlspecialchars(get_setting($setting)).'">';
echo '</td></tr></table></td></tr>';
}
thr();
echo "<tr><td><table id=\"captcha\"><tr><th>$I[captcha]</th><td>";
echo '<table>';
if(!extension_loaded('gd')){
echo "<tr><td>$I[gdextrequired]</td></tr>";
}else{
echo '<tr><td><select name="dismemcaptcha">';
$dismemcaptcha=(bool) get_setting('dismemcaptcha');
echo '<option value="0"';
if(!$dismemcaptcha){
echo ' selected';
}
echo ">$I[enabled]</option>";
echo '<option value="1"';
if($dismemcaptcha){
echo ' selected';
}
echo ">$I[onlyguests]</option>";
echo '</select></td><td><select name="captcha">';
$captcha=(int) get_setting('captcha');
echo '<option value="0"';
if($captcha===0){
echo ' selected';
}
echo ">$I[disabled]</option>";
echo '<option value="1"';
if($captcha===1){
echo ' selected';
}
echo ">$I[simple]</option>";
echo '<option value="2"';
if($captcha===2){
echo ' selected';
}
echo ">$I[moderate]</option>";
echo '<option value="3"';
if($captcha===3){
echo ' selected';
}
echo ">$I[extreme]</option>";
echo '</select></td></tr>';
}
echo '</table></td></tr></table></td></tr>';
thr();
echo "<tr><td><table id=\"defaulttz\"><tr><th>$I[defaulttz]</th><td>";
echo "<select name=\"defaulttz\">";
$tzs=timezone_identifiers_list();
$defaulttz=get_setting('defaulttz');
foreach($tzs as $tz){
echo "<option value=\"$tz\"";
if($defaulttz==$tz){
echo ' selected';
}
echo ">$tz</option>";
}
echo '</select>';
echo '</td></tr></table></td></tr>';
foreach($C['textarea_settings'] as $setting){
thr();
echo "<tr><td><table id=\"$setting\"><tr><th>".$I[$setting].'</th><td>';
echo "<textarea name=\"$setting\" rows=\"4\" cols=\"60\">".htmlspecialchars(get_setting($setting)).'</textarea>';
echo '</td></tr></table></td></tr>';
}
foreach($C['number_settings'] as $setting){
thr();
echo "<tr><td><table id=\"$setting\"><tr><th>".$I[$setting].'</th><td>';
echo "<input type=\"number\" name=\"$setting\" value=\"".htmlspecialchars(get_setting($setting)).'">';
echo '</td></tr></table></td></tr>';
}
foreach($C['bool_settings'] as $setting){
thr();
echo "<tr><td><table id=\"$setting\"><tr><th>".$I[$setting].'</th><td>';
echo "<select name=\"$setting\">";
$value=(bool) get_setting($setting);
echo '<option value="0"';
if(!$value){
echo ' selected';
}
echo ">$I[disabled]</option>";
echo '<option value="1"';
if($value){
echo ' selected';
}
echo ">$I[enabled]</option>";
echo '</select></td></tr>';
echo '</table></td></tr>';
}
thr();
echo '<tr><td>'.submit($I['apply']).'</td></tr></table></form><br>';
if($U['status']==8){
echo '<table id="actions"><tr><td>';
echo form('setup', 'backup');
echo submit($I['backuprestore']).'</form></td><td>';
echo form('setup', 'destroy');
echo submit($I['destroy'], 'class="delbutton"').'</form></td></tr></table><br>';
}
echo form_target('_parent', 'logout');
echo submit($I['logout'], 'id="exitbutton"').'</form>'.credit();
print_end();
}
function restore_backup(array $C){
global $db, $memcached;
if(!extension_loaded('json')){
return;
}
$code=json_decode($_POST['restore'], true);
if(isset($_POST['settings'])){
foreach($C['settings'] as $setting){
if(isset($code['settings'][$setting])){
update_setting($setting, $code['settings'][$setting]);
}
}
}
if(isset($_POST['filter']) && (isset($code['filters']) || isset($code['linkfilters']))){
$db->exec('DELETE FROM ' . PREFIX . 'filter;');
$db->exec('DELETE FROM ' . PREFIX . 'linkfilter;');
$stmt=$db->prepare('INSERT INTO ' . PREFIX . 'filter (filtermatch, filterreplace, allowinpm, regex, kick, cs) VALUES (?, ?, ?, ?, ?, ?);');
foreach($code['filters'] as $filter){
if(!isset($filter['cs'])){
$filter['cs']=0;
}
$stmt->execute([$filter['match'], $filter['replace'], $filter['allowinpm'], $filter['regex'], $filter['kick'], $filter['cs']]);
}
$stmt=$db->prepare('INSERT INTO ' . PREFIX . 'linkfilter (filtermatch, filterreplace, regex) VALUES (?, ?, ?);');
foreach($code['linkfilters'] as $filter){
$stmt->execute([$filter['match'], $filter['replace'], $filter['regex']]);
}
if(MEMCACHED){
$memcached->delete(DBNAME . '-' . PREFIX . 'filter');
$memcached->delete(DBNAME . '-' . PREFIX . 'linkfilter');
}
}
if(isset($_POST['members']) && isset($code['members'])){
$db->exec('DELETE FROM ' . PREFIX . 'inbox;');
$db->exec('DELETE FROM ' . PREFIX . 'members;');
$stmt=$db->prepare('INSERT INTO ' . PREFIX . 'members (nickname, passhash, status, refresh, bgcolour, regedby, lastlogin, loginfails, timestamps, embed, incognito, style, nocache, tz, eninbox, sortupdown, hidechatters, nocache_old) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?);');
foreach($code['members'] as $member){
$new_settings=['nocache', 'tz', 'eninbox', 'sortupdown', 'hidechatters', 'nocache_old'];
foreach($new_settings as $setting){
if(!isset($member[$setting])){
$member[$setting]=0;
}
}
$stmt->execute([$member['nickname'], $member['passhash'], $member['status'], $member['refresh'], $member['bgcolour'], $member['regedby'], $member['lastlogin'], $member['loginfails'], $member['timestamps'], $member['embed'], $member['incognito'], $member['style'], $member['nocache'], $member['tz'], $member['eninbox'], $member['sortupdown'], $member['hidechatters'], $member['nocache_old']]);
}
}
if(isset($_POST['notes']) && isset($code['notes'])){
$db->exec('DELETE FROM ' . PREFIX . 'notes;');
$stmt=$db->prepare('INSERT INTO ' . PREFIX . 'notes (type, lastedited, editedby, text) VALUES (?, ?, ?, ?);');
foreach($code['notes'] as $note){
if($note['type']==='admin'){
$note['type']=0;
}elseif($note['type']==='staff'){
$note['type']=1;
}elseif($note['type']==='public'){
$note['type']=3;
}
if(MSGENCRYPTED){
try {
$note['text']=base64_encode(sodium_crypto_aead_aes256gcm_encrypt($note['text'], '', AES_IV, ENCRYPTKEY));
} catch (SodiumException $e){
send_error($e->getMessage());
}
}
$stmt->execute([$note['type'], $note['lastedited'], $note['editedby'], $note['text']]);
}
}
}
function send_backup(array $C){
global $I, $db;
$code=[];
if($_POST['do']==='backup'){
if(isset($_POST['settings'])){
foreach($C['settings'] as $setting){
$code['settings'][$setting]=get_setting($setting);
}
}
if(isset($_POST['filter'])){
$result=$db->query('SELECT * FROM ' . PREFIX . 'filter;');
while($filter=$result->fetch(PDO::FETCH_ASSOC)){
$code['filters'][]=['match'=>$filter['filtermatch'], 'replace'=>$filter['filterreplace'], 'allowinpm'=>$filter['allowinpm'], 'regex'=>$filter['regex'], 'kick'=>$filter['kick'], 'cs'=>$filter['cs']];
}
$result=$db->query('SELECT * FROM ' . PREFIX . 'linkfilter;');
while($filter=$result->fetch(PDO::FETCH_ASSOC)){
$code['linkfilters'][]=['match'=>$filter['filtermatch'], 'replace'=>$filter['filterreplace'], 'regex'=>$filter['regex']];
}
}
if(isset($_POST['members'])){
$result=$db->query('SELECT * FROM ' . PREFIX . 'members;');
while($member=$result->fetch(PDO::FETCH_ASSOC)){
$code['members'][]=$member;
}
}
if(isset($_POST['notes'])){
$result=$db->query('SELECT * FROM ' . PREFIX . "notes;");
while($note=$result->fetch(PDO::FETCH_ASSOC)){
if(MSGENCRYPTED){
try {
$note['text']=sodium_crypto_aead_aes256gcm_decrypt(base64_decode($note['text']), null, AES_IV, ENCRYPTKEY);
} catch (SodiumException $e){
send_error($e->getMessage());
}
}
$code['notes'][]=$note;
}
}
}
if(isset($_POST['settings'])){
$chksettings=' checked';
}else{
$chksettings='';
}
if(isset($_POST['filter'])){
$chkfilters=' checked';
}else{
$chkfilters='';
}
if(isset($_POST['members'])){
$chkmembers=' checked';
}else{
$chkmembers='';
}
if(isset($_POST['notes'])){
$chknotes=' checked';
}else{
$chknotes='';
}
print_start('backup');
echo "<h2>$I[backuprestore]</h2><table>";
thr();
if(!extension_loaded('json')){
echo "<tr><td>$I[jsonextrequired]</td></tr>";
}else{
echo '<tr><td>'.form('setup', 'backup');
echo '<table id="backup"><tr><td id="backupcheck">';
echo "<label><input type=\"checkbox\" name=\"settings\" id=\"backupsettings\" value=\"1\"$chksettings>$I[settings]</label>";
echo "<label><input type=\"checkbox\" name=\"filter\" id=\"backupfilter\" value=\"1\"$chkfilters>$I[filter]</label>";
echo "<label><input type=\"checkbox\" name=\"members\" id=\"backupmembers\" value=\"1\"$chkmembers>$I[members]</label>";
echo "<label><input type=\"checkbox\" name=\"notes\" id=\"backupnotes\" value=\"1\"$chknotes>$I[notes]</label>";
echo '</td><td id="backupsubmit">'.submit($I['backup']).'</td></tr></table></form></td></tr>';
thr();
echo '<tr><td>'.form('setup', 'restore');
echo '<table id="restore">';
echo "<tr><td colspan=\"2\"><textarea name=\"restore\" rows=\"4\" cols=\"60\">".htmlspecialchars(json_encode($code)).'</textarea></td></tr>';
echo "<tr><td id=\"restorecheck\"><label><input type=\"checkbox\" name=\"settings\" id=\"restoresettings\" value=\"1\"$chksettings>$I[settings]</label>";
echo "<label><input type=\"checkbox\" name=\"filter\" id=\"restorefilter\" value=\"1\"$chkfilters>$I[filter]</label>";
echo "<label><input type=\"checkbox\" name=\"members\" id=\"restoremembers\" value=\"1\"$chkmembers>$I[members]</label>";
echo "<label><input type=\"checkbox\" name=\"notes\" id=\"restorenotes\" value=\"1\"$chknotes>$I[notes]</label>";
echo '</td><td id="restoresubmit">'.submit($I['restore']).'</td></tr></table>';
echo '</form></td></tr>';
}
thr();
echo '<tr><td>'.form('setup').submit($I['initgosetup'], 'class="backbutton"')."</form></tr></td>";
echo '</table>';
print_end();
}
function send_destroy_chat(){
global $I;
print_start('destroy_chat');
echo "<table><tr><td colspan=\"2\">$I[confirm]</td></tr><tr><td>";
echo form_target('_parent', 'setup', 'destroy').hidden('confirm', 'yes').submit($I['yes'], 'class="delbutton"').'</form></td><td>';
echo form('setup').submit($I['no'], 'class="backbutton"').'</form></td><tr></table>';
print_end();
}
function send_delete_account(){
global $I;
print_start('delete_account');
echo "<table><tr><td colspan=\"2\">$I[confirm]</td></tr><tr><td>";
echo form('profile', 'delete').hidden('confirm', 'yes').submit($I['yes'], 'class="delbutton"').'</form></td><td>';
echo form('profile').submit($I['no'], 'class="backbutton"').'</form></td><tr></table>';
print_end();
}
function send_init(){
global $I, $L;
print_start('init');
echo "<h2>$I[init]</h2>";
echo form('init')."<table><tr><td><h3>$I[sulogin]</h3><table>";
echo "<tr><td>$I[sunick]</td><td><input type=\"text\" name=\"sunick\" size=\"15\" autocomplete=\"username\"></td></tr>";
echo "<tr><td>$I[supass]</td><td><input type=\"password\" name=\"supass\" size=\"15\" autocomplete=\"new-password\"></td></tr>";
echo "<tr><td>$I[suconfirm]</td><td><input type=\"password\" name=\"supassc\" size=\"15\" autocomplete=\"new-password\"></td></tr>";
echo '</table></td></tr><tr><td><br>'.submit($I['initbtn']).'</td></tr></table></form>';
echo "<p id=\"changelang\">$I[changelang]";
foreach($L as $lang=>$name){
echo " <a href=\"$_SERVER[SCRIPT_NAME]?action=setup&lang=$lang\">$name</a>";
}
echo '</p>'.credit();
print_end();
}
function send_update(string $msg){
global $I;
print_start('update');
echo "<h2>$I[dbupdate]</h2><br>".form('setup').submit($I['initgosetup'])."</form>$msg<br>".credit();
print_end();
}
function send_alogin(){
global $I, $L;
print_start('alogin');
echo form('setup').'<table>';
echo "<tr><td>$I[nick]</td><td><input type=\"text\" name=\"nick\" size=\"15\" autocomplete=\"username\" autofocus></td></tr>";
echo "<tr><td>$I[pass]</td><td><input type=\"password\" name=\"pass\" size=\"15\" autocomplete=\"current-password\"></td></tr>";
send_captcha();
echo '<tr><td colspan="2">'.submit($I['login']).'</td></tr></table></form>';
echo '<br><a href="?action=sa_password_reset">'.$I['forgotlogin'].'</a><br>';
echo "<p id=\"changelang\">$I[changelang]";
foreach($L as $lang=>$name){
echo " <a href=\"?action=setup&lang=$lang\" hreflang=\"$lang\">$name</a>";
}
echo '</p>'.credit();
print_end();
}
function send_sa_password_reset(){
global $I, $L, $db;
print_start('sa_password_reset');
echo "<h1>$I[resetpassword]</h1>";
if(defined('RESET_SUPERADMIN_PASSWORD') && !empty(RESET_SUPERADMIN_PASSWORD)){
$stmt = $db->query('SELECT nickname FROM ' . PREFIX . 'members WHERE status = 8 LIMIT 1;');
if($user = $stmt->fetch(PDO::FETCH_ASSOC)){
$mem_update = $db->prepare('UPDATE ' . PREFIX . 'members SET passhash = ? WHERE nickname = ? LIMIT 1;');
$mem_update->execute([password_hash(RESET_SUPERADMIN_PASSWORD, PASSWORD_DEFAULT), $user['nickname']]);
$sess_delete = $db->prepare('DELETE FROM ' . PREFIX . 'sessions WHERE nickname = ?;');
$sess_delete->execute([$user['nickname']]);
printf("<p>$I[resetsucc]</p>", $user['nickname']);
}
} else {
echo "<p>$I[resetinstruction]</p>";
}
echo "<a href=\"?action=setup\">$I[backtosetup]</a>";
echo "<p id=\"changelang\">$I[changelang]";
foreach($L as $lang=>$name){
echo " <a href=\"?action=sa_password_reset&lang=$lang\" hreflang=\"$lang\">$name</a>";
}
echo '</p>'.credit();
print_end();
}
function send_admin(string $arg){
global $I, $U, $db;
$ga=(int) get_setting('guestaccess');
print_start('admin');
$chlist="<select name=\"name[]\" size=\"5\" multiple><option value=\"\">$I[choose]</option>";
$chlist.="<option value=\"s *\">$I[allguests]</option>";
$users=[];
$stmt=$db->query('SELECT nickname, style, status FROM ' . PREFIX . 'sessions WHERE entry!=0 AND status>0 ORDER BY LOWER(nickname);');
while($user=$stmt->fetch(PDO::FETCH_NUM)){
$users[]=[htmlspecialchars($user[0]), $user[1], $user[2]];
}
foreach($users as $user){
if($user[2]<$U['status']){
$chlist.="<option value=\"$user[0]\" style=\"$user[1]\">$user[0]</option>";
}
}
$chlist.='</select>';
echo "<h2>$I[admfunc]</h2><i>$arg</i><table>";
if($U['status']>=7){
thr();
echo '<tr><td>'.form_target('view', 'setup').submit($I['initgosetup']).'</form></td></tr>';