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['csrf_token'])){
$_SESSION['csrf_token']=sha1(uniqid());
}
if(empty($_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 $instance){
$update_onion=$db->prepare('UPDATE onions SET private_key=? WHERE onion=?;');
$torrc='ClientUseIPv6 1
ClientUseIPv4 1
SOCKSPort 0
MaxClientCircuitsPending 1024
NumEntryGuards '.NUM_GUARDS.'
NumDirectoryGuards '.NUM_GUARDS.'
NumPrimaryGuards '.NUM_GUARDS.'
';
$stmt=$db->prepare('SELECT onions.onion, users.system_account, onions.num_intros, onions.enable_smtp, onions.version, onions.max_streams, onions.enabled, onions.private_key FROM onions LEFT JOIN users ON (users.id=onions.user_id) WHERE onions.instance = ? AND onions.enabled IN (1, -2) AND users.id NOT IN (SELECT user_id FROM new_account) AND users.todelete!=1;');
$stmt->execute([$instance]);
while($tmp=$stmt->fetch(PDO::FETCH_ASSOC)){
if(!file_exists("/var/lib/tor-instances/$instance/hidden_service_$tmp[onion].onion")){
if($tmp['version']==2){
//php openssl implementation has some issues, re-export using native openssl
$pkey=openssl_pkey_get_private($tmp['private_key']);
openssl_pkey_export($pkey, $exported);
openssl_pkey_free($pkey);
$priv_key=shell_exec('echo ' . escapeshellarg($exported) . ' | openssl rsa');
//save hidden service
mkdir("/var/lib/tor-instances/$instance/hidden_service_$tmp[onion].onion", 0700);
file_put_contents("/var/lib/tor-instances/$instance/hidden_service_$tmp[onion].onion/private_key", $priv_key);
chmod("/var/lib/tor-instances/$instance/hidden_service_$tmp[onion].onion/private_key", 0600);
chown("/var/lib/tor-instances/$instance/hidden_service_$tmp[onion].onion/", "_tor-$instance");
chown("/var/lib/tor-instances/$instance/hidden_service_$tmp[onion].onion/private_key", "_tor-$instance");
chgrp("/var/lib/tor-instances/$instance/hidden_service_$tmp[onion].onion/", "_tor-$instance");
chgrp("/var/lib/tor-instances/$instance/hidden_service_$tmp[onion].onion/private_key", "_tor-$instance");
$update_onion->execute([$priv_key, $tmp['onion']]);
}elseif($tmp['version']==3){
$priv_key=base64_decode($tmp['private_key']);
//save hidden service
mkdir("/var/lib/tor-instances/$instance/hidden_service_$tmp[onion].onion", 0700);
file_put_contents("/var/lib/tor-instances/$instance/hidden_service_$tmp[onion].onion/hs_ed25519_secret_key", $priv_key);
chmod("/var/lib/tor-instances/$instance/hidden_service_$tmp[onion].onion/hs_ed25519_secret_key", 0600);
chown("/var/lib/tor-instances/$instance/hidden_service_$tmp[onion].onion/", "_tor-$instance");
chown("/var/lib/tor-instances/$instance/hidden_service_$tmp[onion].onion/hs_ed25519_secret_key", "_tor-$instance");
chgrp("/var/lib/tor-instances/$instance/hidden_service_$tmp[onion].onion/", "_tor-$instance");
chgrp("/var/lib/tor-instances/$instance/hidden_service_$tmp[onion].onion/hs_ed25519_secret_key", "_tor-$instance");
}
}
if($tmp['enabled']==1){
$socket=$tmp['system_account'];
}else{
$socket='suspended';
}
$torrc.="HiddenServiceDir /var/lib/tor-instances/$instance/hidden_service_$tmp[onion].onion
HiddenServiceNumIntroductionPoints $tmp[num_intros]
HiddenServiceVersion $tmp[version]
HiddenServiceMaxStreamsCloseCircuit 1
HiddenServiceMaxStreams $tmp[max_streams]
HiddenServicePort 80 unix:/var/run/nginx/$socket
";
if($tmp['enable_smtp']){
$torrc.="HiddenServicePort 25\n";
}
}
file_put_contents("/etc/tor/instances/$instance/torrc", $torrc);
exec('systemctl reload '.escapeshellarg("tor@$instance"));
}
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['type'] === OPENSSL_KEYTYPE_RSA){
$p = gmp_init(bin2hex($details['rsa']['p']), 16);
$q = gmp_init(bin2hex($details['rsa']['q']), 16);
$n = gmp_init(bin2hex($details['rsa']['n']), 16);
$d = gmp_init(bin2hex($details['rsa']['d']), 16);
$dmp1 = gmp_init(bin2hex($details['rsa']['dmp1']), 16);
$dmq1 = gmp_init(bin2hex($details['rsa']['dmq1']), 16);
$iqmp = gmp_init(bin2hex($details['rsa']['iqmp']), 16);
}
if($details['type'] !== OPENSSL_KEYTYPE_RSA){
$message = 'Error: private key is not an RSA key.';
$ok = false;
}elseif($details['bits'] !== 1024){
$message = 'Error: private key not of bitsize 1024.';
$ok = false;
}elseif(gmp_prob_prime($p) === 0){
$message = 'Error: p is not a prime';
$ok = false;
}elseif(gmp_prob_prime($q) === 0){
$message = 'Error: q is not a prime';
$ok = false;
}elseif(gmp_cmp($n, gmp_mul($p, $q) ) !== 0){
$message = 'Error: n does not equal p q';
$ok = false;
}elseif(gmp_cmp($dmp1, gmp_mod($d, gmp_sub($p, 1) ) ) !==0 ){
$message = 'Error: dmp1 invalid';
$ok = false;
}elseif(gmp_cmp($dmq1, gmp_mod($d, gmp_sub($q, 1) ) ) !== 0){
$message = 'Error: dmq1 invalid';
$ok = false;
}elseif(gmp_cmp($iqmp, gmp_invert($q, $p) ) !==0 ){
$sessage = 'Error: iqmp not inverse of q';
$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='';
$rewrites = [];
// rewrite rules
$stmt = $db->query('SELECT user_id, regex, replacement, flag, ifnotexists FROM nginx_rewrites;');
while($tmp = $stmt->fetch(PDO::FETCH_ASSOC)){
if(!isset($rewrites[$tmp['user_id']])){
$rewrites[$tmp['user_id']] = '';
}
if($tmp['ifnotexists']){
$rewrites[$tmp['user_id']] .= "if (!-e \$request_filename) {\n\t\t";
}
$rewrites[$tmp['user_id']] .= "rewrite '$tmp[regex]' '$tmp[replacement]'";
if(!empty($tmp['flag'])){
$rewrites[$tmp['user_id']] .= " $tmp[flag]";
}
$rewrites[$tmp['user_id']] .= ";\n\t";
if($tmp['ifnotexists']){
$rewrites[$tmp['user_id']] .= "}\n\t";
}
}
// onions
$stmt=$db->query("SELECT users.system_account, users.php, users.autoindex, onions.onion, users.id 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';
$nginx.="server {
listen unix:/var/run/nginx/$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 $autoindex;
";
if(isset($rewrites[$tmp['id']])){
$nginx .= $rewrites[$tmp['id']];
}
$nginx .= "location / {
try_files \$uri \$uri/ =404;$php_location
}
}
";
}
// clearnet domains
$stmt=$db->query("SELECT users.system_account, users.php, users.autoindex, domains.domain, users.id FROM users INNER JOIN domains ON (domains.user_id=users.id) WHERE domains.enabled = 1 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';
$nginx.="server {
listen [::]:80;
root /home/$tmp[system_account]/www;
server_name $tmp[domain];
access_log /var/log/nginx/access_$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 $autoindex;
";
if(isset($rewrites[$tmp['id']])){
$nginx .= $rewrites[$tmp['id']];
}
$nginx .= "location / {
try_files \$uri \$uri/ =404;$php_location
}
}
";
}
file_put_contents("/etc/nginx/sites-enabled/hosted_sites", $nginx);
$nginx='';
$stmt=$db->query("SELECT system_account FROM users WHERE id NOT IN (SELECT user_id FROM new_account) AND todelete!=1;");
while($tmp=$stmt->fetch(PDO::FETCH_ASSOC)){
$nginx.="server {
listen unix:/home/$tmp[system_account]/var/run/mysqld/mysqld.sock;
proxy_pass unix:/var/run/mysqld/mysqld.sock;
}
";
}
file_put_contents("/etc/nginx/streams-enabled/hosted_sites", $nginx);
exec('systemctl reload nginx');
}
function rewrite_php_config(PDO $db, string $key){
$stmt=$db->prepare("SELECT system_account FROM users WHERE instance = ? 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 = 50
pm.process_idle_timeout = 10s;
chroot = /home/$tmp[system_account]
php_admin_value[memory_limit] = 256M
php_admin_value[disable_functions] = pcntl_alarm,pcntl_async_signals,pcntl_exec,pcntl_fork,pcntl_get_last_error,pcntl_getpriority,pcntl_setpriority,pcntl_signal,pcntl_signal_dispatch,pcntl_signal_get_handler,pcntl_sigprocmask,pcntl_sigtimedwait,pcntl_sigwaitinfo,pcntl_strerror,pcntl_waitpid,pcntl_wait,pcntl_wexitstatus,pcntl_wifcontinued,pcntl_wifexited,pcntl_wifsignaled,pcntl_wifstopped,pcntl_wstopsig,pcntl_wtermsig,popen,posix_ctermid,posix_getgrgid,posix_getgrnam,posix_getpgid,posix_getpwnam,posix_getpwuid,posix_getrlimit,posix_getsid,posix_kill,posix_setegid,posix_seteuid,posix_setgid,posix_setpgid,posix_setrlimit,posix_setuid,posix_ttyname,posix_uname,putenv,socket_listen,socket_create_listen,socket_bind,stream_socket_server
php_admin_value[upload_tmp_dir] = /tmp
php_admin_value[soap.wsdl_cache_dir] = /tmp
php_admin_value[session.save_path] = /tmp
";
}
file_put_contents("/etc/php/$version/fpm/pool.d/$key/www.conf", $php);
exec('systemctl restart '.escapeshellarg("php$version-fpm@$key"));
}
}
function add_mysql_user(PDO $db, string $password) : string {
$mysql_user = '';
$stmt = $db->prepare('SELECT null FROM users WHERE mysql_user = ?;');
do {
$mysql_user = substr(preg_replace('/[^a-z0-9]/i', '', base64_encode(random_bytes(32))), 0, 32);
$stmt->execute([$mysql_user]);
} while($stmt->fetch());
$create_user = $db->prepare("CREATE USER ?@'%' IDENTIFIED BY ?;");
$create_user->execute([$mysql_user, $password]);
return $mysql_user;
}
function add_user_db(PDO $db, int $user_id) : ?string {
$mysql_db = '';
$stmt = $db->prepare('SELECT COUNT(*) FROM mysql_databases WHERE user_id = ?;');
$stmt->execute([$user_id]);
$count = $stmt->fetch(PDO::FETCH_NUM);
if($count[0]>=MAX_NUM_USER_DBS) {
return null;
}
$stmt = $db->prepare('SELECT null FROM mysql_databases WHERE mysql_database = ?;');
do {
$mysql_db = substr(preg_replace('/[^a-z0-9]/i', '', base64_encode(random_bytes(32))), 0, 32);
$stmt->execute([$mysql_db]);
} while($stmt->fetch());
$stmt = $db->prepare('INSERT INTO mysql_databases (user_id, mysql_database) VALUES (?, ?);');
$stmt->execute([$user_id, $mysql_db]);
$db->exec("CREATE DATABASE IF NOT EXISTS `" . $mysql_db . "`;");
$stmt = $db->prepare('SELECT mysql_user FROM users WHERE id = ?;');
$stmt->execute([$user_id]);
$user = $stmt->fetch(PDO::FETCH_ASSOC);
$stmt=$db->prepare("GRANT ALL PRIVILEGES ON `" . $mysql_db . "`.* TO ?@'%';");
$stmt->execute([$user['mysql_user']]);
$db->exec('FLUSH PRIVILEGES;');
return $mysql_db;
}
function del_user_db(PDO $db, int $user_id, string $mysql_db) {
$stmt = $db->prepare('SELECT mysql_user FROM users WHERE id = ?;');
$stmt->execute([$user_id]);
$user = $stmt->fetch(PDO::FETCH_ASSOC);
$stmt = $db->prepare('SELECT null FROM mysql_databases WHERE user_id = ? AND mysql_database = ?;');
$stmt->execute([$user_id, $mysql_db]);
if($stmt->fetch()){
$stmt = $db->prepare('REVOKE ALL PRIVILEGES ON `'.preg_replace('/[^a-z0-9]/i', '', $mysql_db)."`.* FROM ?@'%';");
$stmt->execute([$user['mysql_user']]);
$db->exec('DROP DATABASE IF EXISTS `'.preg_replace('/[^a-z0-9]/i', '', $mysql_db).'`;');
$stmt = $db->prepare('DELETE FROM mysql_databases WHERE user_id = ? AND mysql_database = ?;');
$stmt->execute([$user_id, $mysql_db]);
}
}
function get_new_tor_instance(PDO $db){
$stmt = $db->query('SELECT s.ID FROM service_instances AS s LEFT JOIN onions AS o ON (s.ID = o.instance) GROUP BY s.ID ORDER BY count(s.ID) LIMIT 1;');
return $stmt->fetch(PDO::FETCH_NUM)[0];
}
function add_user_onion(PDO $db, int $user_id, string $onion, string $priv_key, int $onion_version) {
$stmt=$db->prepare('INSERT INTO onions (user_id, onion, private_key, version, enabled, enable_smtp, instance) VALUES (?, ?, ?, ?, 1, 0, ?);');
$stmt->execute([$user_id, $onion, $priv_key, $onion_version, get_new_tor_instance($db)]);
}
function del_user_onion(PDO $db, int $user_id, string $onion) {
$stmt = $db->prepare('SELECT null FROM onions WHERE user_id = ? AND onion = ? AND enabled IN (0, 1);');
$stmt->execute([$user_id, $onion]);
if($stmt->fetch()){
$stmt = $db->prepare("UPDATE onions SET enabled='-1' WHERE user_id = ? AND onion = ?;");
$stmt->execute([$user_id, $onion]);
}
}
function add_user_domain(PDO $db, int $user_id, string $domain) : string {
$domain = strtolower($domain);
if(strlen($domain) > 255){
return "Domain can't be longer than 255 characters.";
}
if(preg_match('/.onion$/', $domain)){
return "Domain can't end in .onion which is reserved for tor hidden services.";
}
$parts = explode('.', $domain);
if(count($parts) < 2){
return 'Invalid domain';
}
foreach($parts as $part){
if(!preg_match('/^([0-9a-z][0-9a-z\-]*[0-9a-z]|[0-9a-z])$/', $part)){
return 'Invalid domain';
}
}
$stmt = $db->prepare('SELECT null FROM domains WHERE domain = ?;');
$stmt->execute([$domain]);
if($stmt->fetch()){
return 'This domain already exists!';
}
$stmt = $db->prepare("INSERT INTO domains (user_id, domain, enabled) VALUES (?, ?, 1);");
$stmt->execute([$user_id, $domain]);
return '';
}
function del_user_domain(PDO $db, int $user_id, string $domain) {
$stmt = $db->prepare('SELECT null FROM domains WHERE user_id = ? AND domain = ? AND enabled IN (0, 1);');
$stmt->execute([$user_id, $domain]);
if($stmt->fetch()){
$stmt = $db->prepare("DELETE FROM domains WHERE user_id = ? AND domain = ?;");
$stmt->execute([$user_id, $domain]);
}
}
function check_csrf_error(){
if(empty($_POST['csrf_token']) || $_POST['csrf_token'] !== $_SESSION['csrf_token']){
return 'Invalid CSRF token, please try again.';
}
return false;
}
function enqueue_instance_reload($db, $instance = null){
if($instance === null){
$stmt=$db->prepare('UPDATE service_instances SET reload = 1 LIMIT 1;');
}else{
$stmt=$db->prepare('UPDATE service_instances SET reload = 1 WHERE id = ?;');
$stmt->execute([$instance]);
}
}