/**
* start the server
*
* @access public
*/
function start()
{
if (!function_exists('pcntl_fork')) {
return $this->raiseError('Needs pcntl extension to fork processes.', NET_SERVER_ERROR_PCNTL_REQUIRED);
}
$this->initFD = @socket_create($this->protocol, SOCK_STREAM, 0);
if (!$this->initFD) {
return $this->raiseError("Could not create socket.");
}
// adress may be reused
socket_setopt($this->initFD, SOL_SOCKET, SO_REUSEADDR, 1);
// bind the socket
if (!@socket_bind($this->initFD, $this->domain, $this->port)) {
$error = $this->getLastSocketError($this->initFd);
@socket_close($this->initFD);
return $this->raiseError("Could not bind socket to " . $this->domain . " on port " . $this->port . " (" . $error . ").");
}
// listen on selected port
if (!@socket_listen($this->initFD, $this->maxQueue)) {
$error = $this->getLastSocketError($this->initFd);
@socket_close($this->initFD);
return $this->raiseError("Could not listen (" . $error . ").");
}
$this->_sendDebugMessage("Listening on port " . $this->port . ". Server started at " . date("H:i:s", time()));
if (method_exists($this->callbackObj, "onStart")) {
$this->callbackObj->onStart();
}
// Dear children, please do not become zombies
pcntl_signal(SIGCHLD, SIG_IGN);
// wait for incmoning connections
while (true) {
// new connection
if ($fd = socket_accept($this->initFD)) {
$pid = pcntl_fork();
if ($pid == -1) {
return $this->raiseError('Could not fork child process.');
} elseif ($pid == 0) {
// this is not the parent
$this->_isParent = false;
// store the new file descriptor
$this->clientFD[0] = $fd;
$peer_host = "";
$peer_port = "";
socket_getpeername($this->clientFD[0], $peer_host, $peer_port);
$this->clientInfo = array("host" => $peer_host, "port" => $peer_port, "connectOn" => time());
$this->_sendDebugMessage("New connection from " . $peer_host . " on port " . $peer_port . ", new pid: " . getmypid());
if (method_exists($this->callbackObj, "onConnect")) {
$this->callbackObj->onConnect(0);
}
$this->serviceRequest();
$this->closeConnection();
exit;
} else {
// the parent process does not have to do anything
}
}
}
}
/**
* Bind
*
* @return bool success
* @throws peer.SocketException in case of an error
*/
public function bind($reuse = false)
{
if (false === socket_setopt($this->_sock, SOL_SOCKET, SO_REUSEADDR, $reuse) || false === socket_bind($this->_sock, $this->host, $this->port)) {
throw new SocketException(sprintf('Binding socket to ' . $this->host . ':' . $this->port . ' failed: %s', $this->getLastError()));
}
// Update socket host and port
socket_getsockname($this->_sock, $this->host, $this->port);
return true;
}
function acceptConnection(&$socket)
{
for ($i = 0; $i <= count($this->_server->clientFD); $i++) {
if (!isset($this->_server->clientFD[$i]) || $this->_server->clientFD[$i] == null) {
$this->_server->clientFD[$i] = socket_accept($socket);
socket_setopt($this->_server->clientFD[$i], SOL_SOCKET, SO_REUSEADDR, 1);
$peer_host = "";
$peer_port = "";
socket_getpeername($this->_server->clientFD[$i], $peer_host, $peer_port);
$this->_server->clientInfo[$i] = array("host" => $peer_host, "port" => $peer_port, "connectOn" => time());
// $this->clients++;
$this->_server->_sendDebugMessage("New connection (" . $i . ") from " . $peer_host . " on port " . $peer_port);
if (method_exists($this->_server->callbackObj, "onConnect")) {
$this->_server->callbackObj->onConnect($i);
}
return $i;
}
}
}
function run()
{
if (($sock = socket_create(AF_INET, SOCK_STREAM, 0)) < 0) {
return $this->_raiseSoapFault("socket_create() failed: reason: " . socket_strerror($sock));
}
if ($this->reuse && !@socket_setopt($sock, SOL_SOCKET, SO_REUSEADDR, 1)) {
return $this->_raiseSoapFault("socket_setopt() failed: reason: " . socket_strerror(socket_last_error($sock)));
}
if (($ret = socket_bind($sock, $this->localaddr, $this->port)) < 0) {
return $this->_raiseSoapFault("socket_bind() failed: reason: " . socket_strerror($ret));
}
# print "LISTENING on {$this->localaddr}:{$this->port}\n";
if (($ret = socket_listen($sock, $this->listen)) < 0) {
return $this->_raiseSoapFault("socket_listen() failed: reason: " . socket_strerror($ret));
}
do {
$data = NULL;
if (($msgsock = socket_accept($sock)) < 0) {
$this->_raiseSoapFault("socket_accept() failed: reason: " . socket_strerror($msgsock));
break;
}
# print "Accepted connection\n";
while ($buf = socket_read($msgsock, 8192)) {
if (!($buf = trim($buf))) {
continue;
}
$data .= $buf;
}
if ($data) {
$response = $this->service($data);
# write to the socket
if (!socket_write($msgsock, $response, strlen($response))) {
return $this->_raiseSoapFault('Error sending response data reason ' . socket_strerror());
}
}
socket_close($msgsock);
} while (true);
socket_close($sock);
}
function run()
{
if (($sock = socket_create(AF_INET, SOCK_STREAM, 0)) < 0) {
return $this->_raiseSoapFault('socket_create() failed. Reason: ' . socket_strerror($sock));
}
if ($this->reuse && !@socket_setopt($sock, SOL_SOCKET, SO_REUSEADDR, 1)) {
return $this->_raiseSoapFault('socket_setopt() failed. Reason: ' . socket_strerror(socket_last_error($sock)));
}
if (($ret = socket_bind($sock, $this->localaddr, $this->port)) < 0) {
return $this->_raiseSoapFault('socket_bind() failed. Reason: ' . socket_strerror($ret));
}
if (($ret = socket_listen($sock, $this->listen)) < 0) {
return $this->_raiseSoapFault('socket_listen() failed. Reason: ' . socket_strerror($ret));
}
while (true) {
$data = null;
if (($msgsock = socket_accept($sock)) < 0) {
$this->_raiseSoapFault('socket_accept() failed. Reason: ' . socket_strerror($msgsock));
break;
}
while ($buf = socket_read($msgsock, 8192)) {
if (!($buf = trim($buf))) {
continue;
}
$data .= $buf;
}
if ($data) {
$response = $this->service($data);
/* Write to the socket. */
if (!socket_write($msgsock, $response, strlen($response))) {
return $this->_raiseSoapFault('Error sending response data reason ' . socket_strerror());
}
}
socket_close($msgsock);
}
socket_close($sock);
}
function socket_set_option($sock, $type, $opt, $value)
{
socket_setopt($sock, $type, $opt, $value);
}
for ($i = 0; $i < FD_SETSIZE; $i++) {
if ($client[$i] != null) {
$rfds[$i + 1] = $client[$i];
}
}
// block indefinitely until we receive a connection...
$nready = socket_select($rfds, $null, $null, null);
// if we have a new connection, stick it in the $client array,
if (in_array($listenfd, $rfds)) {
if (DEBUG) {
print "listenfd heard something, setting up new client\n";
}
for ($i = 0; $i < FD_SETSIZE; $i++) {
if ($client[$i] == null) {
$client[$i] = socket_accept($listenfd);
socket_setopt($client[$i], SOL_SOCKET, SO_REUSEADDR, 1);
socket_getpeername($client[$i], $remote_host[$i], $remote_port[$i]);
if (DEBUG) {
print "Accepted {$remote_host[$i]}:{$remote_port[$i]} as client[{$i}]\n";
}
break;
}
if ($i == FD_SETSIZE - 1) {
trigger_error("too many clients", E_USER_ERROR);
exit;
}
}
if ($i > $maxi) {
$maxi = $i;
}
if (--$nready <= 0) {
/**
* Accepts a new connection.
*
* @param resource $ &$socket socket that received the new connection
* @return int $clientID internal ID of the client
*/
public function acceptConnection(&$socket)
{
for ($i = 0; $i <= count($this->clientFD); $i++) {
if (!isset($this->clientFD[$i]) || $this->clientFD[$i] == null) {
$this->clientFD[$i] = socket_accept($socket);
socket_setopt($this->clientFD[$i], SOL_SOCKET, SO_REUSEADDR, 1);
$peer_host = "";
$peer_port = "";
socket_getpeername($this->clientFD[$i], $peer_host, $peer_port);
$this->clientInfo[$i] = array("host" => $peer_host, "port" => $peer_port, "connectOn" => time());
$this->clients++;
$this->handler->onConnect($i);
return $i;
}
}
}
function init_sockets()
{
global $CFG;
$this->trace('Setting up sockets');
if (false === ($this->listen_socket = socket_create(AF_INET, SOCK_STREAM, 0))) {
// Failed to create socket
$lasterr = socket_last_error();
$this->fatal('socket_create() failed: ' . socket_strerror($lasterr) . ' [' . $lasterr . ']');
}
//socket_close($DAEMON->listen_socket);
//die();
if (!socket_bind($this->listen_socket, $CFG->chat_serverip, $CFG->chat_serverport)) {
// Failed to bind socket
$lasterr = socket_last_error();
$this->fatal('socket_bind() failed: ' . socket_strerror($lasterr) . ' [' . $lasterr . ']');
}
if (!socket_listen($this->listen_socket, $CFG->chat_servermax)) {
// Failed to get socket to listen
$lasterr = socket_last_error();
$this->fatal('socket_listen() failed: ' . socket_strerror($lasterr) . ' [' . $lasterr . ']');
}
// Socket has been initialized and is ready
$this->trace('Socket opened on port ' . $CFG->chat_serverport);
// [pj]: I really must have a good read on sockets. What exactly does this do?
// http://www.unixguide.net/network/socketfaq/4.5.shtml is still not enlightening enough for me.
socket_setopt($this->listen_socket, SOL_SOCKET, SO_REUSEADDR, 1);
socket_set_nonblock($this->listen_socket);
}
function _acceptCalls()
{
$maxi = -1;
for ($i = 0; $i < $this->_fd_set_size; $i++) {
$this->_clientFD[$i] = null;
}
while (true) {
$rfds[0] =& $this->_sock;
for ($i = 0; $i < $this->_fd_set_size; $i++) {
if ($this->_clientFD[$i] != null) {
$rfds[$i + 1] = $this->_clientFD[$i];
}
}
// block indefinitely until we receive a connection...
$nready = socket_select($rfds, $null, $null, null);
// if we have a new connection, stick it in the $client array,
if (in_array($this->_sock, $rfds)) {
//print "listenfd heard something, setting up new client\n";
for ($i = 0; $i < $this->_fd_set_size; $i++) {
if ($this->_clientFD[$i] == null) {
$this->_clientFD[$i] = socket_accept($this->_sock);
socket_setopt($this->_clientFD[$i], SOL_SOCKET, SO_REUSEADDR, 1);
socket_getpeername($this->_clientFD[$i], $this->_remote_host[$i], $this->_remote_port[$i]);
if ($i == $this->_fd_set_size - 1) {
print "too many clients, refusing {$this->_remote_host[$i]}\n";
socket_write($this->_clientFD[$i], "Sorry, too many clients", 23);
$this->_closeClient($i);
break;
} else {
if (!in_array($this->_remote_host[$i], $this->_acl)) {
//print ("Refusing {$this->_remote_host[$i]} for ACL rules\n");
socket_write($this->_clientFD[$i], "Permission denied", 17);
$this->_closeClient($i);
break;
}
}
//print "Accepted {$this->_remote_host[$i]}:{$this->_remote_port[$i]} as client[$i]\n";
$talkback = $this->_help();
socket_write($this->_clientFD[$i], $talkback, strlen($talkback));
break;
}
}
if ($i > $maxi) {
$maxi = $i;
}
if (--$nready <= 0) {
continue;
}
}
// check the clients for incoming data.
for ($i = 0; $i <= $maxi; $i++) {
if ($this->_clientFD[$i] == null) {
continue;
}
if (in_array($this->_clientFD[$i], $rfds)) {
$n = trim(socket_read($this->_clientFD[$i], REMOTE_CONSOLE_MAXLINE));
if (!$n) {
$this->_closeClient($i);
} else {
// the request string is $n
// build the response and put in $talkback
if ($n == 'q') {
$this->_closeClient($i);
continue;
// print the help screen
} else {
if ($n == 'h') {
$talkback = $this->_help();
// quit the whole application
} else {
if ($n == 'x') {
$this->_stopApplication();
break;
} else {
// Here we manage all user-defined menu entries
// if a method exist with the name [choice]actionPerformed()
// this method will be executed and return string is sent
// back to the client
// (for example, if you have a menu like L -> list files in current dir
// and you have defined the method LactionPerformed() this
// method will be called)
$methodName = strtoupper($n) . "actionPerformed";
if (method_exists($this, $methodName)) {
$talkback = "\r\n" . $this->{$methodName}() . "\r\n" . $this->_prompt;
} else {
if (array_key_exists(strtoupper($n), $this->_options)) {
$talkback = "Sorry, feature not yet implemented.\r\n" . $this->_prompt;
} else {
$talkback = "\r\n" . $this->_prompt;
}
}
}
}
}
// send out $talkback to client
//print "From {$this->_remote_host[$i]}:{$this->_remote_port[$i]}, client[$i]: $n\n";
if ($this->_clientFD[$i] != null) {
socket_write($this->_clientFD[$i], $talkback, strlen($talkback));
}
}
if (--$nready <= 0) {
break;
}
}
}
}
print time() . " - You should never read this...\n";
exit(1);
}
/**
* accept a new connection
*
* @access private
* @param resource &$socket socket that received the new connection
* @return int $clientID internal ID of the client
*/
function acceptConnection(&$socket)
{
for ($i = 0; $i <= count($this->clientFD); $i++) {
if (!isset($this->clientFD[$i]) || $this->clientFD[$i] == NULL) {
$this->clientFD[$i] = socket_accept($socket);
socket_setopt($this->clientFD[$i], SOL_SOCKET, SO_REUSEADDR, 1);
$peer_host = '';
$peer_port = '';
socket_getpeername($this->clientFD[$i], $peer_host, $peer_port);
$this->clientInfo[$i] = array('host' => $peer_host, 'port' => $peer_port, 'connectOn' => time());
$this->clients++;
$this->_sendDebugMessage('New connection (' . $i . ') from ' . $peer_host . ' on port ' . $peer_port);
if (method_exists($this->callbackObj, 'onConnect')) {
$this->callbackObj->onConnect($i);
}
return $i;
}
}
}
/**
* start the server
*
* @access public
*/
function start()
{
if (!function_exists('pcntl_fork')) {
die('Needs pcntl extension to fork processes.');
}
$this->initFD = @socket_create($this->protocol, SOCK_STREAM, 0);
if (!$this->initFD) {
die("Could not create socket.");
}
// adress may be reused
socket_setopt($this->initFD, SOL_SOCKET, SO_REUSEADDR, 1);
// bind the socket
if (!@socket_bind($this->initFD, $this->domain, $this->port)) {
$error = $this->getLastSocketError($this->initFd);
@socket_close($this->initFD);
die("Could not bind socket to " . $this->domain . " on port " . $this->port . " (" . $error . ").");
}
// listen on selected port
if (!@socket_listen($this->initFD, $this->maxQueue)) {
$error = $this->getLastSocketError($this->initFd);
@socket_close($this->initFD);
die("Could not listen (" . $error . ").");
}
$this->_sendDebugMessage("Listening on port " . $this->port . ". Server started at " . date("H:i:s", time()));
if (method_exists($this->callbackObj, "onStart")) {
$this->callbackObj->onStart();
}
$this->_setDefaultOptions();
$mpmDriverFile = 'Net/Server/Driver/Multiprocess/MPM-' . $this->_mpm . '.php';
if (!@(include_once $mpmDriverFile)) {
die('Unknown MPM ' . $mpmDriverFile);
}
// starting pool of processors...
for ($i = 0; $i < $this->_startPool; $i++) {
$this->_threadPool[$i] =& new Net_Server_Thread_Processor($i, $this);
$this->_threadPool[$i]->start();
print "Started Processor " . $i . " with PID " . $this->_threadPool[$i]->getPid() . "\n";
}
// Multi Process Manager
$this->_mpmObj =& new MPM($this->_threadPool, $this);
$this->_mpmObj->start();
print "Started MPM with PID " . $this->_mpmObj->getPid() . "\n";
// destroy the listening primar socket, it's unuseful at this point
@socket_close($this->initFD);
// remote console thread
$consoleClassName = $this->_console;
if (!@(include_once 'Net/Server/Driver/Multiprocess/' . $consoleClassName . '.php')) {
die('Unknown console ' . $consoleClassName);
}
$this->_consoleObj =& new $consoleClassName($this);
$this->_consoleObj->start();
print "Started remote console with PID " . $this->_consoleObj->getPid() . "\n";
}
