Copy: ";
if(CAPTCHA === 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 '{
$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 width=) | ';
echo " |
";
}
function check_login(){
global $db;
if(empty($_SESSION['hosting_username'])){
header('Location: login.php');
session_destroy();
exit;
}
$stmt=$db->prepare('SELECT * FROM users WHERE username=?;');
$stmt->execute([$_SESSION['hosting_username']]);
if(!$user=$stmt->fetch(PDO::FETCH_ASSOC)){
header('Location: login.php');
session_destroy();
exit;
}
return $user;
}
function get_system_hash($pass) {
$chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789./';
$salt = '';
for($i = 0; $i < 16; ++$i){
$salt .= $chars[random_int(0, strlen($chars)-1)];
}
return crypt($pass, '$6$' . $salt . '$');
}
function check_captcha_error() {
global $db;
if(CAPTCHA){
if(!isset($_REQUEST['challenge'])){
return 'Error: Wrong Captcha';
}else{
$stmt=$db->prepare('SELECT code FROM captcha WHERE id=?;');
$stmt->execute([$_REQUEST['challenge']]);
$stmt->bindColumn(1, $code);
if(!$stmt->fetch(PDO::FETCH_BOUND)){
return 'Error: Captcha expired';
}else{
$time=time();
$stmt=$db->prepare('DELETE FROM captcha WHERE id=? OR timeexecute([$_REQUEST['challenge'], $time-3600]);
if($_REQUEST['captcha']!==$code){
if(strrev($_REQUEST['captcha'])!==$code){
return 'Error: Wrong captcha';
}
}
}
}
}
return false;
}
function rewrite_torrc(PDO $db, string $key){
$torrc="ClientUseIPv6 1
ClientUseIPv4 1
SOCKSPort 0
MaxClientCircuitsPending 1024
NumEntryGuards 6
NumDirectoryGuards 6
NumPrimaryGuards 6
";
$stmt=$db->prepare('SELECT onions.onion, users.system_account, onions.num_intros, onions.enable_smtp, onions.version, onions.max_streams, onions.enabled FROM onions LEFT JOIN users ON (users.id=onions.user_id) WHERE onions.onion LIKE ? AND onions.enabled IN (1, -2) AND users.id NOT IN (SELECT user_id FROM new_account) AND users.todelete!=1;');
$stmt->execute(["$key%"]);
while($tmp=$stmt->fetch(PDO::FETCH_NUM)){
if($tmp[6]==1){
$socket=$tmp[1];
}else{
$socket='suspended';
}
$torrc.="HiddenServiceDir /var/lib/tor-instances/$key/hidden_service_$tmp[0].onion/
HiddenServiceNumIntroductionPoints $tmp[2]
HiddenServiceVersion $tmp[4]
HiddenServiceMaxStreamsCloseCircuit 1
HiddenServiceMaxStreams $tmp[5]
HiddenServicePort 80 unix:/var/run/nginx/$socket
";
if($tmp[3]){
$torrc.="HiddenServicePort 25\n";
}
}
file_put_contents("/etc/tor/instances/$key/torrc", $torrc);
exec("service tor@$key reload");
}
function private_key_to_onion(string $priv_key) : array {
$ok = true;
$message = '';
$onion = '';
$priv_key = trim($priv_key);
$version = 0;
if(($pkey = openssl_pkey_get_private($priv_key)) !== false){
$version = 2;
$details=openssl_pkey_get_details($pkey);
if($details['bits'] !== 1024){
$message = 'Error: private key not of bitsize 1024.';
$ok = false;
}else{
$onion = get_onion_v2($pkey);
}
openssl_pkey_free($pkey);
return ['ok' => $ok, 'message' => $message, 'onion' => $onion, 'version' => $version];
} elseif(($priv = base64_decode($priv_key, true)) !== false){
$version = 3;
if(strpos($priv, '== ed25519v1-secret: type0 ==' . hex2bin('000000')) !== 0 || strlen($priv) !== 96){
$message = 'Error: v3 secret key invalid.';
$ok = false;
} else {
$onion = get_onion_v3(substr($priv, 32));
}
return ['ok' => $ok, 'message' => $message, 'onion' => $onion, 'version' => $version];
}
$message = 'Error: private key invalid.';
$ok = false;
return ['ok' => $ok, 'message' => $message, 'onion' => $onion, 'version' => $version];
}
function generate_new_onion(int $version = 3) : array {
$priv_key = '';
$onion = '';
if($version === 2){
$pkey = openssl_pkey_new(['private_key_bits' => 1024, 'private_key_type' => OPENSSL_KEYTYPE_RSA]);
openssl_pkey_export($pkey, $priv_key);
$onion = get_onion_v2($pkey);
openssl_pkey_free($pkey);
} else {
$seed = random_bytes(32);
$sk = ed25519_seckey_expand($seed);
$priv_key = base64_encode('== ed25519v1-secret: type0 ==' . hex2bin('000000') . $sk);
$onion = get_onion_v3($sk);
}
return ['priv_key' => $priv_key, 'onion' => $onion, 'version' => $version];
}
function ed25519_seckey_expand(string $seed) : string {
$sk = hash('sha512', substr($seed, 0, 32), true);
$sk[0] = chr(ord($sk[0]) & 248);
$sk[31] = chr(ord($sk[31]) & 63);
$sk[31] = chr(ord($sk[31]) | 64);
return $sk;
}
function rewrite_nginx_config(PDO $db){
$nginx='';
$stmt=$db->query("SELECT users.system_account, users.php, users.autoindex, onions.onion FROM users INNER JOIN onions ON (onions.user_id=users.id) WHERE onions.enabled IN (1, -2) AND users.id NOT IN (SELECT user_id FROM new_account) AND users.todelete!=1;");
while($tmp=$stmt->fetch(PDO::FETCH_ASSOC)){
if($tmp['php']>0){
$php_location="
location ~ [^/]\.php(/|\$) {
include snippets/fastcgi-php.conf;
fastcgi_pass unix:/run/php/$tmp[system_account];
}";
}else{
$php_location='';
}
$autoindex = $tmp['autoindex'] ? 'on' : 'off';
$nginx.="server {
listen [::]:80;
listen unix:/var/run/nginx/$tmp[system_account];
root /home/$tmp[system_account]/www;
server_name $tmp[onion].onion *.$tmp[onion].onion;
access_log /var/log/nginx/access_$tmp[system_account].log custom buffer=4k flush=1m;
access_log /home/$tmp[system_account]/logs/access.log custom buffer=4k flush=1m;
error_log /var/log/nginx/error_$tmp[system_account].log notice;
error_log /home/$tmp[system_account]/logs/error.log notice;
disable_symlinks on from=/home/$tmp[system_account];
autoindex $autoindex;
location / {
try_files \$uri \$uri/ =404;$php_location
}
}
";
file_put_contents("/etc/nginx/sites-enabled/hosted_sites", $nginx);
exec("service nginx reload");
}
}
function rewrite_php_config(PDO $db, string $key){
$stmt=$db->prepare("SELECT system_account FROM users WHERE system_account LIKE ? AND php=? AND todelete!=1 AND id NOT IN (SELECT user_id FROM new_account);");
foreach(array_replace(PHP_VERSIONS, DISABLED_PHP_VERSIONS) as $php_key => $version){
$stmt->execute(["$key%", $php_key]);
$php = "[www]
user = www-data
group = www-data
listen = /run/php/$version-$key
listen.owner = www-data
listen.group = www-data
pm = ondemand
pm.max_children = 8
";
while($tmp=$stmt->fetch(PDO::FETCH_ASSOC)){
$php.='['.$tmp['system_account']."]
user = $tmp[system_account]
group = www-data
listen = /run/php/$tmp[system_account]
listen.owner = www-data
listen.group = www-data
listen.mode = 0660
pm = ondemand
pm.max_children = 20
pm.process_idle_timeout = 10s;
chroot = /home/$tmp[system_account]
php_admin_value[memory_limit] = 256M
php_admin_value[disable_functions] = exec,link,passthru,pcntl_alarm,pcntl_async_signals,pcntl_exec,pcntl_fork,pcntl_get_last_error,pcntl_getpriority,pcntl_setpriority,pcntl_signal,pcntl_signal_dispatch,pcntl_signal_get_handler,pcntl_sigprocmask,pcntl_sigtimedwait,pcntl_sigwaitinfo,pcntl_strerror,pcntl_waitpid,pcntl_wait,pcntl_wexitstatus,pcntl_wifcontinued,pcntl_wifexited,pcntl_wifsignaled,pcntl_wifstopped,pcntl_wstopsig,pcntl_wtermsig,popen,posix_ctermid,posix_getgrgid,posix_getgrnam,posix_getpgid,posix_getpwnam,posix_getpwuid,posix_getrlimit,posix_getsid,posix_kill,posix_setegid,posix_seteuid,posix_setgid,posix_setpgid,posix_setrlimit,posix_setuid,posix_ttyname,posix_uname,proc_open,putenv,shell_exec,socket_listen,socket_create_listen,socket_bind,stream_socket_server,symlink,system
php_admin_value[upload_tmp_dir] = /tmp
php_admin_value[soap.wsdl_cache_dir] = /tmp
php_admin_value[session.save_path] = /tmp
";
}
file_put_contents("/etc/php/$version/fpm/pool.d/$key/www.conf", $php);
exec("service php$version-fpm@$key restart");
}
}