void send(Scores scoreTable) {
if (out == null) return;
try {
out.reset();
out.writeObject(scoreTable);
out.flush();
} catch (Exception e) {
ctrl.serverError("Scores Send error!");
}
}
void send(TimeStamp timeStamp) {
if (out == null) return;
try {
out.reset();
out.writeObject(timeStamp);
out.flush();
} catch (Exception e) {
ctrl.serverError("TimeStamp Send error!");
}
}
void send(PlayersList players) {
if (out == null) return;
try {
out.reset();
out.writeObject(players);
out.flush();
} catch (Exception e) {
ctrl.serverError("PlayersList Send error!");
}
}
/**
* * sendResponse checks for the mode of the server and sends a Response object to the client with
* the appropriate string stored and the client's Cookie.
*
* @param clientCookie - Cookie object received by client
* @param responseToClient - Response object that will be sent to client
* @param outputObject - Used to write serialized version of object back to client
* @throws IOException - Thrown if outputObject is interrupted while processing or fails to
* process
*/
static void sendResponse(
Cookie clientCookie, Response responseToClient, ObjectOutputStream outputObject)
throws IOException {
if (mode.getMode() == ServerMode.JOKE) { // If the mode of the server is set to JOKE, send joke
responseToClient.addResponse(
joke.say(
clientCookie
.getJokeKey())); // gets joke from Database and stores string in responseToClient
clientCookie.nextJoke(); // clientCookie increments the index of the joke to be accessed later
responseToClient.setCookie(clientCookie); // stores clientCookie in responseToClient
System.out.println("Sending joke response..."); // notify server joke is being sent
outputObject.writeObject(
responseToClient); // send a serialized version of Response object to client
} else if (mode.getMode()
== ServerMode.PROVERB) { // If the mode of the server is set to PROVERB, send proverb
responseToClient.addResponse(proverb.say(clientCookie.getProverbKey()));
clientCookie.nextProverb();
responseToClient.setCookie(clientCookie);
System.out.println("Sending proverb response...");
outputObject.writeObject(
responseToClient); // send Response object with proverb and client's Cookie to the client
} else if (mode.getMode()
== ServerMode
.MAINTENANCE) { // If the mode of the server is set to MAINTENANCE, notify clients
// server is down for maintenance
responseToClient.addResponse("Joke server temporarily down for maintenance.\n");
responseToClient.setCookie(clientCookie);
System.out.println("Sending maintenance response...");
outputObject.writeObject(
responseToClient); // send Response object with maintenance message and client's Cookie to
// the client
}
}
public void run() {
try {
ObjectInputStream ois = new ObjectInputStream(s.getInputStream());
ObjectOutputStream oos = new ObjectOutputStream(s.getOutputStream());
BigInteger bg = dhSpec.getG();
BigInteger bp = dhSpec.getP();
oos.writeObject(bg);
oos.writeObject(bp);
KeyPairGenerator kpg = KeyPairGenerator.getInstance("DH");
kpg.initialize(1024);
KeyPair kpa = (KeyPair) ois.readObject();
KeyAgreement dh = KeyAgreement.getInstance("DH");
KeyPair kp = kpg.generateKeyPair();
oos.writeObject(kp);
dh.init(kp.getPrivate());
Key pk = dh.doPhase(kpa.getPublic(), true);
MessageDigest sha256 = MessageDigest.getInstance("SHA-256");
byte[] rawbits = sha256.digest(dh.generateSecret());
Cipher c = Cipher.getInstance(CIPHER_MODE);
SecretKey key = new SecretKeySpec(rawbits, 0, 16, "AES");
byte ivbits[] = (byte[]) ois.readObject();
IvParameterSpec iv = new IvParameterSpec(ivbits);
c.init(Cipher.DECRYPT_MODE, key, iv);
Mac m = Mac.getInstance("HmacSHA1");
SecretKey mackey = new SecretKeySpec(rawbits, 16, 16, "HmacSHA1");
m.init(mackey);
byte ciphertext[], cleartext[], mac[];
try {
while (true) {
ciphertext = (byte[]) ois.readObject();
mac = (byte[]) ois.readObject();
if (Arrays.equals(mac, m.doFinal(ciphertext))) {
cleartext = c.update(ciphertext);
System.out.println(ct + " : " + new String(cleartext, "UTF-8"));
} else {
// System.exit(1);
System.out.println(ct + "error");
}
}
} catch (EOFException e) {
cleartext = c.doFinal();
System.out.println(ct + " : " + new String(cleartext, "UTF-8"));
System.out.println("[" + ct + "]");
} finally {
if (ois != null) ois.close();
if (oos != null) oos.close();
}
} catch (Exception e) {
e.printStackTrace();
}
}
public synchronized void sendClientData(String name, ObjectOutputStream out) throws IOException {
for (ClientData cd : clientList)
if (cd.getName().equals(name)) {
out.writeObject(cd);
return;
}
}
public void run() {
boolean gotByePacket = false;
try {
/* stream to read from client */
ObjectInputStream fromClient = new ObjectInputStream(socket.getInputStream());
Packet packetFromClient;
/* stream to write back to client */
ObjectOutputStream toClient = new ObjectOutputStream(socket.getOutputStream());
// writer to the disk
// String file = "list";
// while (( packetFromClient = (Packet) fromClient.readObject()) != null) {
/* create a packet to send reply back to client */
packetFromClient = (Packet) fromClient.readObject();
Packet packetToClient = new Packet();
packetToClient.type = Packet.LOOKUP_REPLY;
packetToClient.data = new ArrayList<String>();
if (packetFromClient.type == Packet.LOOKUP_REQUEST) {
// called by client
System.out.println("Request from Client:" + packetFromClient.type);
packetToClient.type = Packet.LOOKUP_REPLY;
long start = packetFromClient.start;
long length = packetFromClient.length;
if (start > dict.size()) {
// set the error field, return
packetToClient.error_code = Packet.ERROR_OUT_OF_RANGE;
} else {
for (int i = (int) start; i < start + length && i < dict.size(); i++) {
packetToClient.data.add(dict.get(i));
}
}
toClient.writeObject(packetToClient);
// continue;
}
// }
/* cleanup when client exits */
fromClient.close();
toClient.close();
socket.close();
// close the filehandle
} catch (IOException e) {
if (!gotByePacket) {
e.printStackTrace();
}
} catch (ClassNotFoundException e) {
if (!gotByePacket) e.printStackTrace();
}
}
public static void main(String[] args) {
String str;
Socket sock = null;
ObjectOutputStream writer = null;
Scanner kb = new Scanner(System.in);
try {
sock = new Socket("127.0.0.1", 4445);
} catch (IOException e) {
System.out.println("Could not connect.");
System.exit(-1);
}
try {
writer = new ObjectOutputStream(sock.getOutputStream());
} catch (IOException e) {
System.out.println("Could not create write object.");
System.exit(-1);
}
str = kb.nextLine();
try {
writer.writeObject(str);
writer.flush();
} catch (IOException e) {
System.out.println("Could not write to buffer");
System.exit(-1);
}
try {
sock.close();
} catch (IOException e) {
System.out.println("Could not close connection.");
System.exit(-1);
}
System.out.println("Wrote and exited successfully");
}
public void sendObj(Object obj) {
try {
objOut.writeObject(obj);
} catch (IOException e) {
e.printStackTrace();
}
}
private TaskObjectsExecutionResults runObject(TaskObjectsExecutionRequest obj)
throws IOException, PDBatchTaskExecutorException {
Object res = null;
try {
setAvailability(false);
_oos.writeObject(obj);
_oos.flush();
res = _ois.readObject();
setAvailability(true);
} catch (IOException e) { // worker closed connection
processException(e);
throw e;
} catch (ClassNotFoundException e) {
processException(e);
throw new IOException("stream has failed");
}
if (res instanceof TaskObjectsExecutionResults) {
_isPrevRunSuccess = true;
return (TaskObjectsExecutionResults) res;
} else {
PDBatchTaskExecutorException e =
new PDBatchTaskExecutorException("worker failed to run tasks");
if (_isPrevRunSuccess == false && !sameAsPrevFailedJob(obj._tasks)) {
processException(e); // twice a loser, kick worker out
}
_isPrevRunSuccess = false;
_prevFailedBatch = obj._tasks;
throw e;
}
}
void sendMessage(ChatMessage msg) {
try {
sOutput.writeObject(msg);
} catch (IOException e) {
display("Exception writing to server: " + e);
}
}
public boolean start() {
try {
socket = new Socket(server, port);
} catch (Exception ec) {
display("Error connectiong to server:" + ec);
return false;
}
String msg = "Connection accepted " + socket.getInetAddress() + ":" + socket.getPort();
display(msg);
try {
sInput = new ObjectInputStream(socket.getInputStream());
sOutput = new ObjectOutputStream(socket.getOutputStream());
} catch (IOException eIO) {
display("Exception creating new Input/output Streams: " + eIO);
return false;
}
new ListenFromServer().start();
try {
sOutput.writeObject(username);
} catch (IOException eIO) {
display("Exception doing login : " + eIO);
disconnect();
return false;
}
return true;
}
public void sendOutput(Object obj) {
try {
oos.writeObject(obj);
oos.flush();
} catch (IOException e) {
System.out.println(e.getMessage());
}
}
void send(file x) {
try {
oout.writeObject(x);
oout.flush();
} catch (IOException ex) {
ex.printStackTrace();
}
}
// send a message to the output stream
void sendMessage(String msg) {
try {
out.writeObject(msg);
out.flush();
System.out.println("Send message: " + msg);
} catch (IOException ioException) {
ioException.printStackTrace();
}
}
// Utility methods
// Send message to client
private void sendMessage(String message) {
try {
output.writeObject("KELVIN: " + message);
output.flush();
showMessage("\nKELVIN: " + message);
} catch (IOException ioException) {
chatWindow.append("\n ERROR: CANNOT SEND MESSAGE! \n");
}
}
private void secondChance(RRObject obj) throws ClassNotFoundException, IOException {
try {
obj.runProtocol(_srv, _ois, _oos);
} catch (PDBatchTaskExecutorException e2) {
utils.Messenger.getInstance()
.msg(
"PDBTEC2ListenerThread.run(): sending NoWorkerAvailableResponse() to client...", 1);
// e.printStackTrace();
_oos.writeObject(new NoWorkerAvailableResponse(((TaskObjectsExecutionRequest) obj)._tasks));
_oos.flush();
} catch (IOException e2) {
utils.Messenger.getInstance()
.msg("PDBTEC2ListenerThread.run(): sending FailedReply to client...", 1);
// e.printStackTrace();
_oos.writeObject(new FailedReply());
_oos.flush();
}
}
// send a message to the output stream
void SendChunk(int chunkNum) {
try {
// Send the chunk number that will follow
outUp.writeObject(chunkNum + "");
outUp.flush();
// Send the chunk
if (chunkNum != -1) {
byte[] fileContents = Files.readAllBytes(availableChunks[chunkNum].toPath());
outUp.writeObject(fileContents);
outUp.flush();
System.out.println("Sent chunk " + chunkNum + " to Client");
}
} catch (IOException ioException) {
ioException.printStackTrace();
}
}
public void sendMessage(ObjectExchange data) throws IOException {
synchronized (this) {
if (writer != null && !socket.isClosed()) {
// data.friend_id = transactionId;
writer.writeObject(data);
writer.flush();
}
}
}
void returnnull(ObjectOutputStream oos) {
if (oos != null)
try {
oos.writeObject(null);
oos.flush();
} catch (IOException ex1) {
}
}
void send(GameInfo gameInfo) {
if (out == null) return;
try {
out.reset();
out.writeObject(gameInfo);
out.flush();
} catch (Exception e) {
ctrl.serverError("GameInfo Send error!");
}
}
public static int sizeInBytes(Object obj) throws IOException {
ByteArrayOutputStream byteObject = new ByteArrayOutputStream();
ObjectOutputStream objectOutputStream = new ObjectOutputStream(byteObject);
objectOutputStream.writeObject(obj);
objectOutputStream.flush();
objectOutputStream.close();
byteObject.close();
return byteObject.toByteArray().length;
}
/*
* Write a String to the Client output stream
*/
private boolean writeMsg(ChatMessage cm) {
// if Client is still connected send the message to it
if (!socket.isConnected()) {
close();
return false;
}
// write the message to the stream
try {
boolean sendChatMessage = cm.getType() == ChatMessage.ESTABLISHCONNECTION;
boolean sendMediaFileMessage = cm.getType() == ChatMessage.ESTABLISHCONNECTIONANDPLAY;
if (sendChatMessage || sendMediaFileMessage) sOutput.writeObject(cm);
else sOutput.writeObject(cm.getMessage());
}
// if an error occurs, do not abort just inform the user
catch (IOException e) {
display("Error sending message to " + username);
display(e.toString());
}
return true;
}
public boolean sendMessage(Message messageToSend) {
try {
out.writeObject(messageToSend);
} catch (IOException ioe) {
System.out.println("Could not write to socket: " + socket.getLocalPort());
return false;
}
return true;
}
/**
* sends a message to the server, and to the other clients
*
* @param message: message to be sent
*/
public void sendMessage(String message) {
try {
System.out.println("Sending a message..." + message);
toChatServer.writeObject(new String(message));
toChatServer.flush();
} catch (IOException e) {
System.out.println("IOException in sendMessage");
System.err.println(e);
System.exit(1);
}
}
/**
* update() is customized so that the servlets can interact with it
*
* @return a list of available model names from the server
*/
public void upload(List_entity dr) {
String strInput = "";
String serverResponse = "";
try {
// ObjectOutputStream outStream = new ObjectOutputStream(new
// BufferedOutputStream(sock.getOutputStream()));
// outStream.writeObject(dr);
// outStream.flush();
Log.e("DefaultSocketClient", "inside try in upload() of default socket client..");
Object msg = "upload\n";
ObjectOutputStream sendmsgToServer = new ObjectOutputStream(sock.getOutputStream());
sendmsgToServer.writeObject(msg);
Log.e("DefaultSocketClient", "name of the list that is passed " + dr.getListName());
// ObjectOutputStream sendToServer = new ObjectOutputStream(sock.getOutputStream());
sendmsgToServer.writeObject(dr);
sendmsgToServer.flush();
ObjectInputStream receiveFromServer = new ObjectInputStream(sock.getInputStream());
List_entity le = (List_entity) receiveFromServer.readObject();
Log.e("DefaultSocketClient", "success.. got the list entity " + le.getListName());
// serverResponse = socketReader.readLine();
// System.out.println("serverResponse :"+serverResponse);
// serverResponse = socketReader.readLine();
// System.out.println("Available models from server :"+serverResponse);
// sendmsgToServer.close();
// receiveFromServer.close();
} catch (IOException e) {
e.printStackTrace();
} catch (ClassNotFoundException e) {
e.printStackTrace();
} finally {
}
}
public void mouseClicked(MouseEvent e) {
/*can = false;
boolean f = true;
for (int i = 0; i < 8; i++)
{
for (int j = 0; j < 8; j++)
if (cell[i][j] == e.getSource())
{
int judege = Clicked(cell[i][j]);
f = false;
break;
}
if (!f) break;
}*/
boolean flage = CheckAll();
if (flage) {
can = false;
if (kind.equals("" + turn)) {
ChessBoard cel = (ChessBoard) (e.getSource());
int judge = Clicked(cel);
if (judge == 1) {
try {
System.out.println("发送前：" + cell[3][5].taken);
out66.writeObject("落子" + turn);
out66.flush();
out66.writeObject(stateList.get(stateList.size() - 1));
out66.flush();
out66.writeObject(takenList.get(takenList.size() - 1));
out66.flush();
} catch (IOException e1) {
e1.printStackTrace();
}
}
} else {
JOptionPane.showMessageDialog(null, "请确定您的身份，您此时不能落子");
}
} else CheckAtTheEnd();
}
private void send(Socket canal, Mensaje msg) {
ObjectOutputStream salidaDatos;
try {
if (canal == null) canal = this.conexion;
salidaDatos = new ObjectOutputStream(canal.getOutputStream());
salidaDatos.writeObject(msg);
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
/**
* Sends the specified file to the client. File must exist or client and server threads will hang
* indefinitely. Generates a session key to encrypt the file over transfer; session key is
* encrypted using the client's public (asymmetric) key.
*
* @param aFile The name or path of the file to send.
* @throws IOException Error reading from socket.
*/
private void sendFile(String aFile) throws IOException {
try {
// get client public key
ObjectInputStream clientPubIn = new ObjectInputStream(connectedSocket.getInputStream());
PublicKey clientPublicKey = (PublicKey) clientPubIn.readObject();
// generate key string and send to client using their public key encrypted with RSA
// (asymmetric)
String keyString = generateKeyString();
Cipher keyCipher = Cipher.getInstance("RSA");
keyCipher.init(Cipher.ENCRYPT_MODE, clientPublicKey);
SealedObject sealedKeyString = new SealedObject(keyString, keyCipher);
ObjectOutputStream testOut = new ObjectOutputStream(outToClient);
testOut.writeObject(sealedKeyString);
testOut.flush();
// generate key spec from keyString
SecretKeySpec keySpec = new SecretKeySpec(keyString.getBytes(), "DES");
// set up encryption
Cipher cipher = Cipher.getInstance("DES/ECB/PKCS5Padding");
cipher.init(Cipher.ENCRYPT_MODE, keySpec);
CipherOutputStream cipherOut = new CipherOutputStream(outToClient, cipher);
// send file
byte[] fileBuffer = new byte[BUFFER_SIZE];
InputStream fileReader = new BufferedInputStream(new FileInputStream(aFile));
int bytesRead;
while ((bytesRead = fileReader.read(fileBuffer)) != EOF) {
cipherOut.write(fileBuffer, 0, bytesRead);
}
cipherOut.flush();
cipherOut.close();
disconnect();
} catch (NoSuchPaddingException nspe) {
System.out.println("No such padding.");
} catch (NoSuchAlgorithmException nsae) {
System.out.println("Invalid algorithm entered");
} catch (ClassNotFoundException cnfe) {
System.out.println("Class not found.");
} catch (InvalidKeyException ike) {
System.out.println("Invalid key used for file encryption.");
} catch (FileNotFoundException fnfe) {
System.out.println("Invalid file entered.");
return;
} catch (IllegalBlockSizeException ibse) {
System.out.println("Illegal block size used for encryption.");
}
}
/** DOCUMENT ME! */
public void saveRaids() {
try {
// setup a stream to a physical file on the filesystem
FileOutputStream outStream = new FileOutputStream(REPO);
// attach a stream capable of writing objects to the stream that is connected to the file
ObjectOutputStream objStream = new ObjectOutputStream(outStream);
objStream.writeObject(raids);
objStream.flush();
objStream.close();
} catch (IOException e) {
System.err.println("Things not going as planned.");
e.printStackTrace();
} // catch
}
