public void run() {
try {
OutputStream out = new BufferedOutputStream(socket.getOutputStream());
while (!socket.isClosed()) {
out.write(data);
}
} catch (IOException ex) {
if (!socket.isClosed()) {
try {
socket.close();
} catch (IOException e) {
// Oh well. We tried
}
}
}
}
/**
* there is an issue with this method: if it is called often enough, the <CODE>
* _s.sendUrgentData(0);</CODE> method that it invokes, will force the <CODE>_s</CODE> socket to
* close on the other end, at least on Windows systems. This behavior is due to the fact that
* OOB data handling is problematic since there are conflicting specifications in TCP.
* Therefore, it is required that the method is not called with high frequency (see the <CODE>
* PDBTExecSingleCltWrkInitSrv._CHECK_PERIOD_MSECS</CODE> flag in this file.)
*
* @return true iff the worker is available to accept work according to all evidence.
*/
private synchronized boolean getAvailability() {
boolean res = _isAvail && _s != null && _s.isClosed() == false;
if (res && _OK2SendOOB) { // work-around the OOB data issue
// last test using OOB sending of data
try {
_OK2SendOOB = false; // indicates should not send OOB data until set to true
_s.sendUrgentData(0); // unfortunately, if this method is called often enough,
// it will cause the socket to close???
res = true;
} catch (IOException e) {
// e.printStackTrace();
utils.Messenger.getInstance()
.msg("PDBTExecSingleCltWrkInitSrv.getAvailability(): Socket has been closed", 0);
res = false;
_isAvail = false; // declare availability to false as well
// try graceful exit
try {
_s.shutdownOutput();
_s.close(); // Now we can close the Socket
} catch (IOException e2) {
// silently ignore
}
}
}
return res;
}
@Override
public boolean isOpen() {
return (mIn != null
&& mOut != null
&& mSocket != null
&& mSocket.isConnected()
&& !mSocket.isClosed());
}
public void sendMessage(ObjectExchange data) throws IOException {
synchronized (this) {
if (writer != null && !socket.isClosed()) {
// data.friend_id = transactionId;
writer.writeObject(data);
writer.flush();
}
}
}
private void doConnect(InetSocketAddress addr) throws IOException {
dest = new Socket();
try {
dest.connect(addr, 10000);
} catch (SocketTimeoutException ex) {
sendError(HOST_UNREACHABLE);
return;
} catch (ConnectException cex) {
sendError(CONN_REFUSED);
return;
}
// Success
InetAddress iadd = addr.getAddress();
if (iadd instanceof Inet4Address) {
out.write(PROTO_VERS);
out.write(REQUEST_OK);
out.write(0);
out.write(IPV4);
out.write(iadd.getAddress());
} else if (iadd instanceof Inet6Address) {
out.write(PROTO_VERS);
out.write(REQUEST_OK);
out.write(0);
out.write(IPV6);
out.write(iadd.getAddress());
} else {
sendError(GENERAL_FAILURE);
return;
}
out.write((addr.getPort() >> 8) & 0xff);
out.write((addr.getPort() >> 0) & 0xff);
out.flush();
InputStream in2 = dest.getInputStream();
OutputStream out2 = dest.getOutputStream();
Tunnel tunnel = new Tunnel(in2, out);
tunnel.start();
int b = 0;
do {
// Note that the socket might be closed from another thread (the tunnel)
try {
b = in.read();
if (b == -1) {
in.close();
out2.close();
return;
}
out2.write(b);
} catch (IOException ioe) {
}
} while (!client.isClosed());
}
public void close() throws IOException {
if (in != null) {
in.close();
}
if (out != null) {
out.close();
}
if (socket != null && !socket.isClosed()) {
socket.close();
}
}
/** listen: start to listen if there is any clients connected */
public void listen() {
// Firstly spawn a new thread and then the main thread
// also start listening
_userNet = new DropboxFileServerUserNet(_server, _userOut, _userIn, _userSock);
_userNet.start();
/* Use main thread, cannot be stopped */
while (_sock != null && !_sock.isClosed()) {
try {
String line = NetComm.receive(_in);
_dlog(line);
parse(line);
} catch (Exception e) {
if (!_server.noException()) {
_elog(e.toString());
}
break;
// Break the loop
}
}
/* Clear */
// Close main thread
clear();
// Cancel the listening thread and retry
_server.cancelListeningThread();
/* Also cancel all of the syncers */
_server.cancelSyncers();
// Retry after
try {
_log(
"The connection to master is broken,"
+ " reset everything and retry connection after "
+ DropboxConstants.TRY_CONNECT_MILLIS
+ " milliseconds");
Thread.sleep(DropboxConstants.TRY_CONNECT_MILLIS);
} catch (InterruptedException e) {
if (!_server.noException()) {
_elog(e.toString());
}
if (_server.debugMode()) {
e.printStackTrace();
}
}
_server.run();
clear();
_log(_threadName + " is stopped");
}
// メッセージ監視用のスレッド
public void run() {
try {
InputStream input = socket.getInputStream();
BufferedReader reader = new BufferedReader(new InputStreamReader(input));
while (!socket.isClosed()) {
String line = reader.readLine();
String[] msg = line.split(" ", 2);
String msgName = msg[0];
String msgValue = (msg.length < 2 ? "" : msg[1]);
reachedMessage(msgName, msgValue);
}
} catch (Exception err) {
}
}
public void closedSession() {
try {
if ((socket == null) || socket.isClosed()) {
return;
}
sendMessage(
new ObjectExchangeWrap(OUT_SESSION_CLOSE, null, transactionId).getObjectExchange());
writer.close();
reader.close();
socket.close();
this.interrupt();
System.out.println("Showdown input and output");
} catch (Exception e) {
System.out.println("try shutdown error");
System.out.println(e.getMessage());
}
}
public void sendMessage(Address address, byte[] message) throws java.io.IOException {
Socket s = null;
SocketEntry entry = (SocketEntry) sockets.get(address);
if (logger.isDebugEnabled()) {
logger.debug("Looking up connection for destination '" + address + "' returned: " + entry);
logger.debug(sockets.toString());
}
if (entry != null) {
s = entry.getSocket();
}
if ((s == null) || (s.isClosed())) {
if (logger.isDebugEnabled()) {
logger.debug("Socket for address '" + address + "' is closed, opening it...");
}
SocketChannel sc = null;
try {
// Open the channel, set it to non-blocking, initiate connect
sc = SocketChannel.open();
sc.configureBlocking(false);
sc.connect(
new InetSocketAddress(
((TcpAddress) address).getInetAddress(), ((TcpAddress) address).getPort()));
s = sc.socket();
entry = new SocketEntry((TcpAddress) address, s);
entry.addMessage(message);
sockets.put(address, entry);
synchronized (pending) {
pending.add(entry);
}
selector.wakeup();
logger.debug("Trying to connect to " + address);
} catch (IOException iox) {
logger.error(iox);
throw iox;
}
} else {
entry.addMessage(message);
synchronized (pending) {
pending.add(entry);
}
selector.wakeup();
}
}
private void doBind(InetSocketAddress addr) throws IOException {
ServerSocket svr = new ServerSocket();
svr.bind(null);
InetSocketAddress bad = (InetSocketAddress) svr.getLocalSocketAddress();
out.write(PROTO_VERS);
out.write(REQUEST_OK);
out.write(0);
out.write(IPV4);
out.write(bad.getAddress().getAddress());
out.write((bad.getPort() >> 8) & 0xff);
out.write((bad.getPort() & 0xff));
out.flush();
dest = svr.accept();
bad = (InetSocketAddress) dest.getRemoteSocketAddress();
out.write(PROTO_VERS);
out.write(REQUEST_OK);
out.write(0);
out.write(IPV4);
out.write(bad.getAddress().getAddress());
out.write((bad.getPort() >> 8) & 0xff);
out.write((bad.getPort() & 0xff));
out.flush();
InputStream in2 = dest.getInputStream();
OutputStream out2 = dest.getOutputStream();
Tunnel tunnel = new Tunnel(in2, out);
tunnel.start();
int b = 0;
do {
// Note that the socket might be close from another thread (the tunnel)
try {
b = in.read();
if (b == -1) {
in.close();
out2.close();
return;
}
out2.write(b);
} catch (IOException ioe) {
}
} while (!client.isClosed());
}
public void run() {
try {
prepareClient();
logger.info("Starting normal session with " + getClientName());
while (true) {
this.receive();
}
} catch (IOException ioe) {
logger.warn("Client " + this + " has been disconnected.");
this.setDisabled(true);
users.remove(this);
} finally {
try {
if (s != null && !s.isClosed()) {
s.close();
logger.warn("Socket with " + this + " has been closed.");
}
} catch (IOException ioe) {
logger.error("Socket has not been closed.", ioe);
}
}
}
public boolean isConnected() {
return !sock.isClosed() && sock.isConnected();
}
public boolean ok() {
// Use this to test whether a client is stil
// valid for use.
return !socket.isClosed() && socket.isConnected() && socket.isBound();
}
/**
* close: close the socket and stream
*
* @return: true for success, false for error
*/
protected boolean close() {
_dlog("Do main thread closing...");
if (_sock != null && !_sock.isClosed()) {
_dlog("Closing the receiving thread");
try {
_sock.close();
_in.close();
_out.close();
_sock = null;
_in = null;
_out = null;
_dlog("Success!");
} catch (IOException e) {
if (!_server.noException()) {
_elog(e.toString());
}
if (_server.debugMode()) {
e.printStackTrace();
}
return false;
}
}
_sock = null;
_in = null;
_out = null;
_dlog("Cancel the user input thread");
if (_userNet != null) {
_userNet.stop();
_userNet.join(); // guaranteed to be closed
_userNet = null;
}
if (_userSock != null && !_userSock.isClosed()) {
_dlog("Closing the user input thread");
// Stop the user thread
try {
_userSock.close();
_userIn.close();
_userOut.close();
_userSock = null;
_userIn = null;
_userOut = null;
_dlog("Success!");
} catch (IOException e) {
if (!_server.noException()) {
_elog(e.toString());
}
if (_server.debugMode()) {
e.printStackTrace();
}
return false;
}
}
_userSock = null;
_userIn = null;
_userOut = null;
/* Cancel all client nodes */
_dlog("Finished");
return true;
/* CAUTION: _server is never cleared */
}
/*
* Gathers the fields necessary to construct an email message using MIME format. Also gathers the user's credentials
*
*/
void getUserInput() {
// Buffered writer for reading input from user
String authentication;
String retryTemp;
boolean retry = false;
boolean showOptions = true;
boolean authFlag = false;
boolean hasResponded = false;
try {
do {
writer = new BufferedReader(new InputStreamReader(System.in));
String replyCode;
// ***********Getting username and password********************
System.out.print("Username: "******"Password: "******" " + writer.readLine();
System.out.println();
// Sending Authentication data to server
System.out.println("AUTH " + authentication);
out.println("AUTH " + authentication);
do {
replyCode = in.readLine();
if (replyCode != null) {
hasResponded = true;
// System.out.println(replyCode);
if (replyCode.substring(0, 3).equals("777")) {
authFlag = true;
System.out.println("Authentication successful!");
}
}
} while (hasResponded == false);
if (authFlag == false) // If authentication failed, exit or retry
{
System.out.println("Authentication error! Exit(e) or Retry(r)?");
retryTemp = writer.readLine();
if (retryTemp.equals("r")) retry = true;
else if (retryTemp.equals("e")) {
retry = false;
System.exit(0);
}
} else // Authentication worked!
{
int choice;
do {
System.out.println("****************OPTIONS*****************");
System.out.println(
"Press (1) to send an email\n"
+ "Press (2) to retrieve messages\n"
+ "Press (3) to exit.\n"
+ "***************************************");
choice = Integer.parseInt(writer.readLine());
switch (choice) {
case 1: // Gather user input for email structure
System.out.print("To: ");
receiver_email_address = writer.readLine();
System.out.print("From: ");
sender_email_address = writer.readLine();
System.out.print("Subject: ");
subject = writer.readLine();
System.out.println("Message Body");
message_body = writer.readLine();
MIME =
("From: "
+ sender_email_address
+ "\n"
+ "To: "
+ receiver_email_address
+ "\n"
+ "Subject: "
+ subject
+ "\n"
+ "MIME-version: 1.0\n"
+ "Content-Transfer-Encoding: 7bit\n"
+ "Content-Type: text/plain\r\n\n"
+ message_body);
state = SMTP_State.HELO;
System.out.println(
"Socket Status: \nisConnected? : "
+ socket.isConnected()
+ "\nisClosed?: "
+ socket.isClosed());
out.println("SEND");
System.out.println("SEND, ENTERING SERVER COMMUNICATION PHASE");
sendToServer();
break;
case 2:
out.println("PRNT: " + "markramasco");
popConnection();
break;
case 3:
showOptions = false;
break;
}
} while (showOptions);
socket.close();
}
// ***************Getting email**********************
} while (retry);
} catch (IOException e) {
System.out.println(e);
}
}
public boolean isOpen() {
return sock != null && !sock.isClosed();
}
private void getRequestV4() throws IOException {
int ver = in.read();
int cmd = in.read();
if (ver == -1 || cmd == -1) {
// EOF
in.close();
out.close();
return;
}
if (ver != 0 && ver != 4) {
out.write(PROTO_VERS4);
out.write(91); // Bad Request
out.write(0);
out.write(0);
out.write(0);
out.write(0);
out.write(0);
out.write(0);
out.write(0);
out.flush();
purge();
out.close();
in.close();
return;
}
if (cmd == CONNECT) {
int port = ((in.read() & 0xff) << 8);
port += (in.read() & 0xff);
byte[] buf = new byte[4];
readBuf(in, buf);
InetAddress addr = InetAddress.getByAddress(buf);
// We don't use the username...
int c;
do {
c = (in.read() & 0xff);
} while (c != 0);
boolean ok = true;
try {
dest = new Socket(addr, port);
} catch (IOException e) {
ok = false;
}
if (!ok) {
out.write(PROTO_VERS4);
out.write(91);
out.write(0);
out.write(0);
out.write(buf);
out.flush();
purge();
out.close();
in.close();
return;
}
out.write(PROTO_VERS4);
out.write(90); // Success
out.write((port >> 8) & 0xff);
out.write(port & 0xff);
out.write(buf);
out.flush();
InputStream in2 = dest.getInputStream();
OutputStream out2 = dest.getOutputStream();
Tunnel tunnel = new Tunnel(in2, out);
tunnel.start();
int b = 0;
do {
try {
b = in.read();
if (b == -1) {
in.close();
out2.close();
return;
}
out2.write(b);
} catch (IOException ex) {
}
} while (!client.isClosed());
}
}
private boolean isConnectionLost() {
return _s == null || _s.isClosed();
}
public boolean isClosed() {
return socket.isClosed();
}