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genconf.php
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genconf.php
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<?php
/**
* DISCLAIMER: I can't code in PHP, I know the code is a mess.
*/
class GenConf {
var $INDENT = ' ';
function create_pure_sni_config($json_in_filename, $haproxy_out_filename = 'haproxy.conf', $dnsmasq_out_filename = 'dnsmasq-haproxy.conf') {
$content = file_get_contents($json_in_filename);
$json = $this->json_clean_decode($content);
$iptables_location = $json->iptables_location;
$server_options = $json->server_options;
$haproxy_bind_ip = $json->haproxy_bind_ip;
$dnsmasq_content = '';
$haproxy_content = $this->generate_global();
$haproxy_content .= $this->generate_defaults();
$haproxy_catchall_frontend_content = $this->generate_frontend('catchall', 'http', $haproxy_bind_ip, 80, TRUE);
$haproxy_catchall_backend_content = $this->generate_backend('catchall', 'http', NULL, NULL, NULL, TRUE);
$haproxy_catchall_frontend_ssl_content = $this->generate_frontend('catchall', 'https', $haproxy_bind_ip, 443, TRUE);
$haproxy_catchall_backend_ssl_content = $this->generate_backend('catchall', 'https', NULL, NULL, NULL, TRUE);
if ($json->stats->enabled) {
$haproxy_content .= $this->generate_stats($json->stats, $haproxy_bind_ip);
}
while ($proxy = array_shift($json->proxies)) {
if ($proxy->enabled) {
while ($mode = array_shift($proxy->modes)) {
if ($mode->mode === 'http') {
$haproxy_catchall_frontend_content .= $this->generate_frontend_catchall_entry($proxy->dest_addr, $mode->mode);
$haproxy_catchall_backend_content .= $this->generate_backend_catchall_entry($proxy->dest_addr, $mode->mode, $mode->port,
$server_options);
}
else if ($mode->mode === 'https') {
$haproxy_catchall_frontend_ssl_content .= $this->generate_frontend_catchall_entry($proxy->dest_addr, $mode->mode);
$haproxy_catchall_backend_ssl_content .= $this->generate_backend_catchall_entry($proxy->dest_addr, $mode->mode, $mode->port,
$server_options);
}
}
$dnsmasq_content .= $this->generate_dns($proxy->dest_addr, $haproxy_bind_ip);
}
}
$test = $this->add_test($haproxy_bind_ip, $server_options);
$haproxy_catchall_frontend_content .= $test[0];
$haproxy_catchall_backend_content .= $test[1];
$dnsmasq_content .= $test[2];
$haproxy_content .= $haproxy_catchall_frontend_content . PHP_EOL;
$haproxy_content .= $haproxy_catchall_backend_content;
$haproxy_content .= $haproxy_catchall_frontend_ssl_content . PHP_EOL;
$haproxy_content .= $haproxy_catchall_backend_ssl_content;
$haproxy_content .= $this->generate_deadend('http');
$haproxy_content .= $this->generate_deadend('https');
echo 'If you are using an inbound firewall on ' . $haproxy_bind_ip . ':' . PHP_EOL;
if ($json->stats->enabled) {
echo $iptables_location . ' -A INPUT -p tcp -m state --state NEW -d ' . $haproxy_bind_ip . ' --dport ' . $json->stats->port . ' -j ACCEPT' . PHP_EOL;
}
echo $iptables_location . ' -A INPUT -p tcp -m state --state NEW -m multiport -d ' . $haproxy_bind_ip . ' --dports ' . 80 . ':' .
443 . ' -j ACCEPT' . PHP_EOL;
echo PHP_EOL;
file_put_contents($haproxy_out_filename, $haproxy_content);
echo 'File generated: ' . $haproxy_out_filename . PHP_EOL;
file_put_contents($dnsmasq_out_filename, $dnsmasq_content);
echo 'File generated: ' . $dnsmasq_out_filename . PHP_EOL;
echo PHP_EOL;
echo '***********************************************************************************************' . PHP_EOL;
echo 'Caution: it\'s not recommended but it\'s possible to run a (recursive) DNS forwarder on your' . PHP_EOL;
echo 'remote server ' . $haproxy_bind_ip . '. If you leave the DNS port wide open to everyone,' . PHP_EOL;
echo 'your server will get terminated sooner or later because of abuse (DDoS amplification attacks).' . PHP_EOL;
echo '***********************************************************************************************' . PHP_EOL;
}
function create_non_sni_config($json_in_filename, $haproxy_out_filename = 'haproxy.conf', $dnsmasq_out_filename = 'dnsmasq-haproxy.conf', $iptables_out_filename = 'iptables-haproxy.sh') {
$content = file_get_contents($json_in_filename);
$json = $this->json_clean_decode($content);
$iptables_location = $json->iptables_location;
$server_options = $json->server_options;
$haproxy_bind_ip = $json->haproxy_bind_ip;
$dnsmasq_content = '';
$iptables_content = '';
$haproxy_content = $this->generate_global();
$haproxy_content .= $this->generate_defaults();
$current_dnat_ip = $json->dnat_base_ip;
$current_dnat_port = $json->dnat_base_port;
$haproxy_catchall_frontend_content = $this->generate_frontend('catchall', 'http', $haproxy_bind_ip, $current_dnat_port, TRUE);
$haproxy_catchall_backend_content = $this->generate_backend('catchall', 'http', NULL, NULL, NULL, TRUE);
$haproxy_catchall_frontend_ssl_content = $this->generate_frontend('catchall', 'https', $haproxy_bind_ip, $current_dnat_port + 1, TRUE);
$haproxy_catchall_backend_ssl_content = $this->generate_backend('catchall', 'https', NULL, NULL, NULL, TRUE);
if ($json->stats->enabled) {
$haproxy_content .= $this->generate_stats($json->stats, $haproxy_bind_ip);
}
while ($proxy = array_shift($json->proxies)) {
if ($proxy->enabled && $proxy->catchall) {
while ($mode = array_shift($proxy->modes)) {
if ($mode->mode === 'http') {
$haproxy_catchall_frontend_content .= $this->generate_frontend_catchall_entry($proxy->dest_addr, $mode->mode);
$haproxy_catchall_backend_content .= $this->generate_backend_catchall_entry($proxy->dest_addr, $mode->mode, $mode->port,
$server_options);
}
else if ($mode->mode === 'https') {
$haproxy_catchall_frontend_ssl_content .= $this->generate_frontend_catchall_entry($proxy->dest_addr, $mode->mode);
$haproxy_catchall_backend_ssl_content .= $this->generate_backend_catchall_entry($proxy->dest_addr, $mode->mode, $mode->port,
$server_options);
}
}
$dnsmasq_content .= $this->generate_dns($proxy->dest_addr, $current_dnat_ip);
}
}
$test = $this->add_test($current_dnat_ip, $server_options);
$haproxy_catchall_frontend_content .= $test[0];
$haproxy_catchall_backend_content .= $test[1];
$dnsmasq_content .= $test[2];
echo 'Make sure the following IP addresses are available as virtual interfaces on your Ddnsmasq-server:' . PHP_EOL;
$haproxy_content .= $haproxy_catchall_frontend_content . PHP_EOL;
$haproxy_content .= $haproxy_catchall_backend_content;
$haproxy_content .= $haproxy_catchall_frontend_ssl_content . PHP_EOL;
$haproxy_content .= $haproxy_catchall_backend_ssl_content;
$iptables_content .= $this->generate_iptables('80', $haproxy_bind_ip, $current_dnat_ip, $current_dnat_port, $iptables_location);
$current_dnat_port++;
$iptables_content .= $this->generate_iptables('443', $haproxy_bind_ip, $current_dnat_ip, $current_dnat_port, $iptables_location);
$current_dnat_port++;
echo $current_dnat_ip . PHP_EOL;
$json = $this->json_clean_decode($content);
while ($proxy = array_shift($json->proxies)) {
if ($proxy->enabled && ! $proxy->catchall) {
$current_dnat_ip = long2ip(ip2long($current_dnat_ip) + 1);
while ($mode = array_shift($proxy->modes)) {
$haproxy_content .= $this->generate_frontend($proxy->name, $mode->mode, $haproxy_bind_ip, $current_dnat_port, FALSE);
$iptables_content .= $this->generate_iptables($mode->port, $haproxy_bind_ip, $current_dnat_ip, $current_dnat_port,
$iptables_location);
$haproxy_content .= $this->generate_backend($proxy->name, $mode->mode, $proxy->dest_addr, $mode->port, $server_options, FALSE);
$current_dnat_port++;
}
$dnsmasq_content .= $this->generate_dns($proxy->dest_addr, $current_dnat_ip);
echo $current_dnat_ip . PHP_EOL;
}
}
$haproxy_content .= $this->generate_deadend('http');
$haproxy_content .= $this->generate_deadend('https');
echo PHP_EOL;
echo 'If you are using an inbound firewall on ' . $haproxy_bind_ip . ':' . PHP_EOL;
if ($json->stats->enabled) {
echo $iptables_location . ' -A INPUT -p tcp -m state --state NEW -d ' . $haproxy_bind_ip . ' --dport ' . $json->stats->port . ' -j ACCEPT' . PHP_EOL;
}
echo $iptables_location . ' -A INPUT -p tcp -m state --state NEW -m multiport -d ' . $haproxy_bind_ip . ' --dports ' . $json->dnat_base_port . ':' .
--$current_dnat_port . ' -j ACCEPT' . PHP_EOL;
echo PHP_EOL;
file_put_contents($haproxy_out_filename, $haproxy_content);
echo 'File generated: ' . $haproxy_out_filename . PHP_EOL;
file_put_contents($dnsmasq_out_filename, $dnsmasq_content);
echo 'File generated: ' . $dnsmasq_out_filename . PHP_EOL;
file_put_contents($iptables_out_filename, $iptables_content);
echo 'File generated: ' . $iptables_out_filename . PHP_EOL;
}
function create_local_non_sni_config($json_in_filename, $haproxy_out_filename = 'haproxy.conf', $netsh_out_filename = 'netsh-haproxy.cmd', $hosts_out_filename = 'hosts-haproxy.txt', $rinetd_out_filename = 'rinetd-haproxy.conf') {
$content = file_get_contents($json_in_filename);
$json = $this->json_clean_decode($content);
$iptables_location = $json->iptables_location;
$server_options = $json->server_options;
$haproxy_bind_ip = $json->haproxy_bind_ip;
$netsh_content = '';
$rinetd_content = '';
$hosts = array();
$haproxy_content = $this->generate_global();
$haproxy_content .= $this->generate_defaults();
$current_loopback_ip = $json->loopback_base_ip;
$current_dnat_port = $json->dnat_base_port;
$haproxy_catchall_frontend_content = $this->generate_frontend('catchall', 'http', $haproxy_bind_ip, $current_dnat_port, TRUE);
$haproxy_catchall_backend_content = $this->generate_backend('catchall', 'http', NULL, NULL, NULL, TRUE);
$haproxy_catchall_frontend_ssl_content = $this->generate_frontend('catchall', 'https', $haproxy_bind_ip, $current_dnat_port + 1, TRUE);
$haproxy_catchall_backend_ssl_content = $this->generate_backend('catchall', 'https', NULL, NULL, NULL, TRUE);
if ($json->stats->enabled) {
$haproxy_content .= $this->generate_stats($json->stats, $haproxy_bind_ip);
}
while ($proxy = array_shift($json->proxies)) {
if ($proxy->enabled && $proxy->catchall) {
while ($mode = array_shift($proxy->modes)) {
if ($mode->mode === 'http') {
$haproxy_catchall_frontend_content .= $this->generate_frontend_catchall_entry($proxy->dest_addr, $mode->mode);
$haproxy_catchall_backend_content .= $this->generate_backend_catchall_entry($proxy->dest_addr, $mode->mode, $mode->port,
$server_options);
}
else if ($mode->mode === 'https') {
$haproxy_catchall_frontend_ssl_content .= $this->generate_frontend_catchall_entry($proxy->dest_addr, $mode->mode);
$haproxy_catchall_backend_ssl_content .= $this->generate_backend_catchall_entry($proxy->dest_addr, $mode->mode, $mode->port,
$server_options);
}
}
$this->add_hosts($hosts, $proxy->dest_addr, $current_loopback_ip);
}
}
$test = $this->add_test($current_loopback_ip, $server_options);
$haproxy_catchall_frontend_content .= $test[0];
$haproxy_catchall_backend_content .= $test[1];
$this->add_hosts($hosts, 'proxy-test.trick77.com', $current_loopback_ip);
$this->add_hosts($hosts, 'dns-test.trick77.com', $current_loopback_ip);
$haproxy_content .= $haproxy_catchall_frontend_content . PHP_EOL;
$haproxy_content .= $haproxy_catchall_backend_content;
$haproxy_content .= $haproxy_catchall_frontend_ssl_content . PHP_EOL;
$haproxy_content .= $haproxy_catchall_backend_ssl_content;
$netsh_content .= $this->generate_netsh('80', $haproxy_bind_ip, $current_loopback_ip, $current_dnat_port);
$rinetd_content .= $this->generate_rinetd('80', $haproxy_bind_ip, $current_loopback_ip, $current_dnat_port);
$current_dnat_port++;
$netsh_content .= $this->generate_netsh('443', $haproxy_bind_ip, $current_loopback_ip, $current_dnat_port);
$rinetd_content .= $this->generate_rinetd('443', $haproxy_bind_ip, $current_loopback_ip, $current_dnat_port);
$current_dnat_port++;
$json = $this->json_clean_decode($content);
while ($proxy = array_shift($json->proxies)) {
if ($proxy->enabled && ! $proxy->catchall) {
$current_loopback_ip = long2ip(ip2long($current_loopback_ip) + 1);
while ($mode = array_shift($proxy->modes)) {
$haproxy_content .= $this->generate_frontend($proxy->name, $mode->mode, $haproxy_bind_ip, $current_dnat_port, FALSE);
$netsh_content .= $this->generate_netsh($mode->port, $haproxy_bind_ip, $current_loopback_ip, $current_dnat_port);
$rinetd_content .= $this->generate_rinetd($mode->port, $haproxy_bind_ip, $current_loopback_ip, $current_dnat_port);
$haproxy_content .= $this->generate_backend($proxy->name, $mode->mode, $proxy->dest_addr, $mode->port, $server_options, FALSE);
$current_dnat_port++;
}
$this->add_hosts($hosts, $proxy->dest_addr, $current_loopback_ip);
}
}
$haproxy_content .= $this->generate_deadend('http');
$haproxy_content .= $this->generate_deadend('https');
echo 'If you are using an inbound firewall on ' . $haproxy_bind_ip . ':' . PHP_EOL;
if ($json->stats->enabled) {
echo $iptables_location . ' -A INPUT -p tcp -m state --state NEW -d ' . $haproxy_bind_ip . ' --dport ' . $json->stats->port . ' -j ACCEPT' . PHP_EOL;
}
echo $iptables_location . ' -A INPUT -p tcp -m state --state NEW -m multiport -d ' . $haproxy_bind_ip . ' --dports ' . $json->dnat_base_port . ':' .
--$current_dnat_port . ' -j ACCEPT' . PHP_EOL;
echo PHP_EOL;
file_put_contents($haproxy_out_filename, $haproxy_content);
echo 'File generated: ' . $haproxy_out_filename . PHP_EOL;
file_put_contents($hosts_out_filename, $this->generate_hosts_content($hosts));
echo 'File generated: ' . $hosts_out_filename . PHP_EOL;
file_put_contents($netsh_out_filename, $netsh_content);
echo 'File generated: ' . $netsh_out_filename . PHP_EOL;
file_put_contents($rinetd_out_filename, $rinetd_content);
echo 'File generated: ' . $rinetd_out_filename . PHP_EOL;
}
function add_test($catchall_ip, $server_options) {
$haproxy_catchall_frontend_content = $this->generate_frontend_catchall_entry('proxy-test.trick77.com', 'http');
$haproxy_catchall_backend_content = $this->generate_backend_catchall_entry('proxy-test.trick77.com', 'http', '80',
$server_options, 'trick77.com');
$dnsmasq_content = $this->generate_dns('proxy-test.trick77.com', $catchall_ip);
$dnsmasq_content .= $this->generate_dns('dns-test.trick77.com', $catchall_ip);
return array($haproxy_catchall_frontend_content, $haproxy_catchall_backend_content, $dnsmasq_content);
}
function generate_frontend_catchall_entry($dest_addr, $mode) {
if ($mode === 'http') {
return $this->format('use_backend b_catchall_' . $mode . ' if { hdr(host) -i ' . $dest_addr . ' }');
}
else if ($mode === 'https') {
return $this->format('use_backend b_catchall_' . $mode . ' if { req_ssl_sni -i ' . $dest_addr . ' }');
}
return NULL;
}
function generate_backend_catchall_entry($dest_addr, $mode, $port, $server_options, $override_dest_addr = NULL) {
$result = NULL;
if ($mode === 'http') {
$result = $this->format('use-server ' . $dest_addr . ' if { hdr(host) -i ' . $dest_addr . ' }');
if ($override_dest_addr == NULL) {
$result .= $this->format('server ' . $dest_addr . ' ' . $dest_addr . ':' . $port . ' ' . $server_options . PHP_EOL);
}
else {
$result .= $this->format('server ' . $dest_addr . ' ' . $override_dest_addr . ':' . $port . ' ' . $server_options . PHP_EOL);
}
}
else if ($mode === 'https') {
$result = $this->format('use-server ' . $dest_addr . ' if { req_ssl_sni -i ' . $dest_addr . ' }');
$result .= $this->format('server ' . $dest_addr . ' ' . $dest_addr . ':' . $port . ' ' . $server_options . PHP_EOL);
}
return $result;
}
function generate_dns($dest_addr, $current_dnat_ip) {
$result = 'address=/' . $dest_addr . '/' . $current_dnat_ip;
return $result . PHP_EOL;
}
function add_hosts(&$hosts, $dest_addr, $current_loopback_ip) {
if(isset($hosts[$current_loopback_ip])) {
array_push($hosts[$current_loopback_ip], $dest_addr);
} else {
$hosts[$current_loopback_ip] = [$dest_addr];
}
}
function generate_netsh($port, $haproxy_bind_ip, $current_loopback_ip, $current_dnat_port) {
$result = 'netsh interface portproxy add v4tov4 protocol=tcp listenport=' . $port . ' listenaddress=' . $current_loopback_ip . ' connectaddress=' .
$haproxy_bind_ip . ' connectport=' . $current_dnat_port . PHP_EOL;
return $result;
}
function generate_rinetd($port, $haproxy_bind_ip, $current_loopback_ip, $current_dnat_port) {
$result = $current_loopback_ip . ' ' . $port . ' ' . $haproxy_bind_ip . ' ' . $current_dnat_port . PHP_EOL;
return $result;
}
function generate_hosts_content(&$hosts) {
$result = '';
foreach ($hosts as $ip => $list) {
$result .= $ip . ' ' . implode(' ',$list) . ' ### GENERATED ' .PHP_EOL;
}
return $result;
}
function generate_iptables($port, $haproxy_bind_ip, $current_dnat_ip, $current_dnat_port, $iptables_location) {
$result = $iptables_location . ' -t nat -A PREROUTING -p tcp --dport ' . $port . ' -d ' . $current_dnat_ip . ' -j DNAT --to-destination ' .
$haproxy_bind_ip . ':' . $current_dnat_port . PHP_EOL;
$result .= $iptables_location . ' -t nat -A POSTROUTING -p tcp --dport ' . $current_dnat_port . ' -j MASQUERADE' . PHP_EOL;
return $result;
}
function generate_global() {
$result = $this->format('global', FALSE);
$result .= $this->format('daemon');
$result .= $this->format('maxconn 20000');
$result .= $this->format('user haproxy');
$result .= $this->format('group haproxy');
$result .= $this->format('stats socket /var/run/haproxy.sock mode 0600 level admin');
$result .= $this->format('log /dev/log local0 debug');
$result .= $this->format('pidfile /var/run/haproxy.pid');
$result .= $this->format('spread-checks 5');
$result .= PHP_EOL;
return $result;
}
function generate_defaults() {
$result = $this->format('defaults', FALSE);
$result .= $this->format('maxconn 19500');
$result .= $this->format('log global');
$result .= $this->format('mode http');
$result .= $this->format('option httplog');
$result .= $this->format('option abortonclose');
$result .= $this->format('option http-server-close');
$result .= $this->format('option persist');
$result .= $this->format('timeout connect 20s');
$result .= $this->format('timeout client 120s');
$result .= $this->format('timeout server 120s');
$result .= $this->format('timeout queue 120s');
$result .= $this->format('timeout check 10s');
$result .= $this->format('retries 3');
$result .= PHP_EOL;
return $result;
}
function generate_deadend($mode) {
$result = $this->format('backend b_deadend_' . $mode, FALSE);
if ($mode === 'http') {
$result .= $this->format('mode http');
$result .= $this->format('option httplog');
$result .= $this->format('option accept-invalid-http-response');
$result .= $this->format('option http-server-close');
}
else if ($mode === 'https') {
$result .= $this->format('mode tcp');
$result .= $this->format('option tcplog');
}
$result .= PHP_EOL;
return $result;
}
function generate_stats($stats, $haproxy_bind_ip) {
$result = $this->format('listen stats', FALSE);
$result .= $this->format('bind ' . $haproxy_bind_ip . ':' . $stats->port);
$result .= $this->format('mode http');
$result .= $this->format('stats enable');
$result .= $this->format('stats realm Protected\\ Area');
$result .= $this->format('stats uri /');
$result .= $this->format('stats auth ' . $stats->user . ':' . $stats->password);
$result .= PHP_EOL;
return $result;
}
function generate_frontend($proxy_name, $mode, $haproxy_bind_ip, $current_dnat_port, $is_catchall) {
$result = $this->format('frontend f_' . $proxy_name . '_' . $mode, FALSE);
$result .= $this->format('bind ' . $haproxy_bind_ip . ':' . $current_dnat_port);
if ($mode === 'http') {
$result .= $this->format('mode http');
$result .= $this->format('option httplog');
$result .= $this->format('capture request header Host len 50');
$result .= $this->format('capture request header User-Agent len 150');
}
else if ($mode === 'https') {
$result .= $this->format('mode tcp');
$result .= $this->format('option tcplog');
if ($is_catchall) {
$result .= $this->format('tcp-request inspect-delay 5s');
$result .= $this->format('tcp-request content accept if { req_ssl_hello_type 1 }');
}
}
if ($is_catchall) {
$result .= $this->format('default_backend b_deadend_' . $mode);
}
else {
$result .= $this->format('default_backend b_' . $proxy_name . '_' . $mode);
}
$result .= PHP_EOL;
return $result;
}
function generate_backend($proxy_name, $mode, $dest_addr, $port, $server_options, $is_catchall) {
$result = $this->format('backend b_' . $proxy_name . '_' . $mode, FALSE);
if ($mode === 'http') {
$result .= $this->format('mode http');
$result .= $this->format('option httplog');
$result .= $this->format('option accept-invalid-http-response');
}
else if ($mode === 'https') {
$result .= $this->format('mode tcp');
$result .= $this->format('option tcplog');
}
if (! $is_catchall) {
$result .= $this->format('server ' . $dest_addr . ' ' . $dest_addr . ':' . $port . ' ' . $server_options);
}
return $result . PHP_EOL;
}
function format($line, $do_ident = TRUE) {
if ($do_ident) {
return $this->INDENT . $line . PHP_EOL;
}
return $line . PHP_EOL;
}
function json_clean_decode($json, $assoc = false, $depth = 512, $options = 0) {
$json = preg_replace("#(/\*([^*]|[\r\n]|(\*+([^*/]|[\r\n])))*\*+/)|([\s\t]//.*)|(^//.*)#", '', $json);
if(version_compare(phpversion(), '5.4.0', '>=')) {
$json = json_decode($json, $assoc, $depth, $options);
}
elseif(version_compare(phpversion(), '5.3.0', '>=')) {
$json = json_decode($json, $assoc, $depth);
}
else {
$json = json_decode($json, $assoc);
}
return $json;
}
}
if ($argc >= 2) {
$g = new GenConf();
$arg1 = strtolower($argv[1]);
if ($arg1 === 'non-sni') {
$g->create_non_sni_config('config.json');
} else if ($arg1 === 'local') {
$g->create_local_non_sni_config('config.json');
} else if ($arg1 === 'pure-sni') {
$g->create_pure_sni_config('config.json');
} else {
die("Missing/wrong argument, use pure-sni (simple setup), non-sni (advanced setup), local (advanced setup)" . PHP_EOL);
}
}
else {
die("Missing/wrong argument, use pure-sni (simple setup), non-sni (advanced setup), local (advanced setup)" . PHP_EOL);
}
?>