152 lines
4.0 KiB
PHP
Executable File
152 lines
4.0 KiB
PHP
Executable File
<?php
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include "config.inc.php";
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include ("$file_newsportal");
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include $config_dir."/scripts/rslight-lib.php";
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if(file_exists($config_dir."/nntp.disable")) {
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clearstatcache(true, $config_dir."/nntp.disable");
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$parent_pid = file_get_contents($lockdir.'/rslight-nntp.lock', IGNORE_NEW_LINES);
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posix_kill($parent_pid, SIGTERM);
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exit;
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}
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/**
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* Listens for requests and forks on each connection
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*/
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$__server_listening = true;
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//error_reporting(E_ALL);
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set_time_limit(0);
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ob_implicit_flush();
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declare(ticks = 1);
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become_daemon();
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/* nobody/nogroup, change to your host's uid/gid of the non-priv user */
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/* handle signals */
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pcntl_signal(SIGTERM, 'sig_handler');
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pcntl_signal(SIGINT, 'sig_handler');
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pcntl_signal(SIGCHLD, 'sig_handler');
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if(isset($CONFIG['enable_all_networks']) && $CONFIG['enable_all_networks'] == true) {
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$bind="0.0.0.0";
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} else {
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$bind=$CONFIG['local_server'];
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}
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server_loop($bind, $CONFIG['local_port']);
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/**
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* Change the identity to a non-priv user
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*/
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function change_identity( $uid, $gid )
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{
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if( !posix_setgid( $gid ) )
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{
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print "Unable to setgid to " . $gid . "!\n";
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exit;
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}
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if( !posix_setuid( $uid ) )
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{
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print "Unable to setuid to " . $uid . "!\n";
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exit;
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}
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}
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/**
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* Creates a server socket and listens for incoming client connections
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* @param string $address The address to listen on
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* @param int $port The port to listen on
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*/
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function server_loop($address, $port)
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{
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GLOBAL $__server_listening;
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GLOBAL
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$CONFIG,$logdir,$lockdir,$webserver_uid,$webserver_gid,$installed_path,
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$config_path,$groupconfig,$workpath,$path,$spooldir,$nntp_group,$auth_ok;
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$logfile=$logdir.'/nntp.log';
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$lockfile = $lockdir . '/rslight-nntp.lock';
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$pid = file_get_contents($lockfile);
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if (posix_getsid($pid) === false || !is_file($lockfile)) {
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print "Starting Rocksolid Light NNTP Server...\n";
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file_put_contents($lockfile, getmypid()); // create lockfile
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} else {
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print "Rocksolid Light NNTP Server currently running\n";
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exit;
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}
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$auth_ok = 0;
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$user = "";
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$pass = "";
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$sock = stream_socket_server(
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'tcp://'.$address.':'.$port,
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$errno,
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$errstr,
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STREAM_SERVER_BIND|STREAM_SERVER_LISTEN
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);
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/* Change to non root user */
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$uinfo=posix_getpwnam($CONFIG['webserver_user']);
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change_identity($uinfo["uid"],$uinfo["gid"]);
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/* Everything below runs as $CONFIG['webserver_user'] */
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echo "waiting for clients to connect\n";
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while ($__server_listening)
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{
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$connection = stream_socket_accept($sock);
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if ($connection === false)
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{
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usleep(100);
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}elseif ($connection > 0)
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{
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handle_client($sock, $connection);
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}else
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{
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echo "error: ".socket_strerror($connection);
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file_put_contents($logfile, "\n".format_log_date()." error: ".socket_strerror($connection), FILE_APPEND);
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die;
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}
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}
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}
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/**
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* Signal handler
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*/
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function sig_handler($sig)
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{
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switch($sig)
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{
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case SIGTERM:
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case SIGINT:
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exit();
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break;
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case SIGCHLD:
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pcntl_waitpid(-1, $status);
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break;
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}
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}
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/**
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* Handle a new client connection
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*/
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function handle_client($ssock, $csock)
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{
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GLOBAL $__server_listening;
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$pid = pcntl_fork();
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if ($pid == -1)
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{
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/* fork failed */
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echo "fork failure!\n";
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die;
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}elseif ($pid == 0)
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{
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/* child process */
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$__server_listening = false;
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fclose($ssock);
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interact($csock, false);
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fclose($csock);
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}else
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{
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fclose($csock);
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}
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}
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?>
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