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base: kcavaill:serveur_presence
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kcavaill:master
kcavaill:application
kcavaill:serveur_presence
kcavaill:standard+session
kcavaill:standard+connexion
kcavaill:standard
kcavaill:session
kcavaill:connexion
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compare: kcavaill:master
Branches Tags
kcavaill:application
kcavaill:master
kcavaill:serveur_presence
kcavaill:standard+session
kcavaill:standard+connexion
kcavaill:standard
kcavaill:session
kcavaill:connexion

3 commits
serveur_pr ... master

Author SHA1 Message Date
m-gues
566b89c382 rendu du projet 2021-02-16 00:08:15 +01:00
Cavailles Kevin
61e069d6ec rename 2021-02-15 23:35:20 +01:00
Cavailles Kevin
16204aa9ac remove old files, add app .jar 2021-02-15 23:32:36 +01:00
65 changed files with 18 additions and 5644 deletions
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49
POO/src/communication/filetransfer/FileTransferClient.java
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@ -1,49 +0,0 @@
package communication.filetransfer;
import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import observers.ObserverInputMessage;
public class FileTransferClient {
private int port;
private ArrayList<File> files;
private ObserverInputMessage obsInput;
/**
* Create a client to transfer one or several files on the specified port of
* localhost. A new Thread is created for each file. The files are sent one by
* one to save bandwidth and avoid issues.
*
* @param port The port of localhost on which to send the files.
* @param filesToSend The file(s) to send.
* @param o The observer to notify each time a file is fully sent.
*/
public FileTransferClient(int port, ArrayList<File> filesToSend, ObserverInputMessage o) {
this.port = port;
this.files = filesToSend;
this.obsInput = o;
}
/**
* Try to send every file on localhost on the specified port with a new thread.
* An observer is passed to the thread and it is notified each time a file is
* fully sent.
*
* @throws IOException
* @throws InterruptedException
*/
public void sendFiles() throws IOException, InterruptedException {
for (File f : this.files) {
FileTransferSendingThread ftc = new FileTransferSendingThread(this.port, f, this.obsInput);
ftc.start();
ftc.join();
}
}
}

102
POO/src/communication/filetransfer/FileTransferReceivingThread.java
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@ -1,102 +0,0 @@
package communication.filetransfer;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.nio.ByteBuffer;
import java.nio.channels.FileChannel;
import java.nio.channels.SocketChannel;
import messages.Message;
import messages.MessageFichier;
import observers.ObserverInputMessage;
public class FileTransferReceivingThread extends Thread {
private SocketChannel sockTransfert;
private ObserverInputMessage obsInput;
/**
* Create the thread that will receive one file during a file transfer. This
* allows users to write in the chat while sending/receiving files.
*
* @param sock The SocketChannel returned by ServerSocketChannel.accept().
* @param o The observer to notify once the file is fully received.
*/
public FileTransferReceivingThread(SocketChannel sock, ObserverInputMessage o) {
this.sockTransfert = sock;
this.obsInput = o;
}
public void run() {
try {
int nbByteRead = 0;
// Buffer to receive a chunk of the file
ByteBuffer fileData = ByteBuffer.allocate(4 * FileTransferUtils.KB_SIZE);
// InputStream to read the first object which is a message containing the name
// and size of the file
ObjectInputStream inputFileInformation = new ObjectInputStream(
this.sockTransfert.socket().getInputStream());
int nbTotalBytesRead;
nbTotalBytesRead = 0;
Object o = inputFileInformation.readObject();
MessageFichier m = (MessageFichier) o;
String[] fileInfo = this.processFileInformation(m);
String filePath = FileTransferUtils.DOWNLOADS_RELATIVE_PATH + fileInfo[0];
long fileSize = Long.parseLong(fileInfo[1]);
// OutputStream to create the file if it does not exist
FileOutputStream fOutStream = new FileOutputStream(filePath);
// Channel to write the data received in the file
FileChannel fileWriter = fOutStream.getChannel();
while (nbTotalBytesRead < fileSize && (nbByteRead = this.sockTransfert.read(fileData)) > 0) {
fileData.flip();
fileWriter.write(fileData);
fileData.clear();
nbTotalBytesRead += nbByteRead;
}
fileWriter.close();
fOutStream.close();
inputFileInformation.close();
// Process the message to display (thumbnails in the case of images) and notify
// the observer
Message mUpdate = FileTransferUtils.processMessageToDisplay(new File(filePath));
mUpdate.setSender("other");
this.obsInput.updateInput(this, mUpdate);
} catch (IOException | ClassNotFoundException e) {
e.printStackTrace();
} finally {
try {
this.sockTransfert.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
/**
* Split the content of a message with the separator ";". This function is only
* used to read the name and the size of the file to receive.
*
* @param m message containing the file's information (name and size).
* @return An array with the file's name and the file's size respectively.
*/
private String[] processFileInformation(MessageFichier m) {
return m.getContenu().split(";");
}
}

88
POO/src/communication/filetransfer/FileTransferSendingThread.java
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@ -1,88 +0,0 @@
package communication.filetransfer;
import java.io.File;
import java.io.IOException;
import java.io.ObjectOutputStream;
import java.net.InetSocketAddress;
import java.net.SocketAddress;
import java.nio.ByteBuffer;
import java.nio.channels.FileChannel;
import java.nio.channels.SocketChannel;
import java.nio.file.Paths;
import messages.MauvaisTypeMessageException;
import messages.Message;
import messages.MessageFichier;
import messages.Message.TypeMessage;
import observers.ObserverInputMessage;
public class FileTransferSendingThread extends Thread {
private SocketChannel sockTransfert;
private File file;
private ObserverInputMessage obsInput;
/**
* Create the thread that will send one file during a file transfer. This allows
* users to write in the chat while sending/receiving files.
*
* @param port The port on localhost to which the SocketChannel will connect.
* @param fileToSend The file to send.
* @param o The observer to notify once the file is fully received.
* @throws IOException if the socket's creation fails.
*/
public FileTransferSendingThread(int port, File fileToSend, ObserverInputMessage o) throws IOException {
SocketChannel sock = SocketChannel.open();
SocketAddress addr = new InetSocketAddress(port);
sock.connect(addr);
this.sockTransfert = sock;
this.file = fileToSend;
this.obsInput = o;
}
public void run() {
try {
// Buffer to send a chunk of the file
ByteBuffer fileData = ByteBuffer.allocate(4 * FileTransferUtils.KB_SIZE);
// OutputStream to write the first object which is a message containing the name
// and size of the file
ObjectOutputStream outputFileInformation = new ObjectOutputStream(
this.sockTransfert.socket().getOutputStream());
// Channel to read the data of the file
FileChannel fileReader = FileChannel.open(Paths.get(file.getPath()));
String str = file.getName() + ";" + file.getTotalSpace();
// Send file data (name + size);
outputFileInformation.writeObject(new MessageFichier(TypeMessage.FICHIER, str, ""));
while (fileReader.read(fileData) > 0) {
fileData.flip();
this.sockTransfert.write(fileData);
fileData.clear();
}
fileReader.close();
outputFileInformation.close();
// Process the message to display (thumbnails in the case of images) and notify
// the observer
Message mUpdate = FileTransferUtils.processMessageToDisplay(this.file);
mUpdate.setSender("Moi");
this.obsInput.updateInput(this, mUpdate);
} catch (IOException | MauvaisTypeMessageException e) {
e.printStackTrace();
} finally {
try {
this.sockTransfert.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
}

57
POO/src/communication/filetransfer/FileTransferServer.java
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@ -1,57 +0,0 @@
package communication.filetransfer;
import java.io.IOException;
import java.net.InetSocketAddress;
import java.net.UnknownHostException;
import java.nio.channels.ServerSocketChannel;
import java.nio.channels.SocketChannel;
import observers.ObserverInputMessage;
public class FileTransferServer extends Thread {
private ServerSocketChannel sockFTListen;
private int nbFile;
private ObserverInputMessage obsInput;
/**
* Create a server to transfer one or several files. A new socket and thread is
* created for each file to receive. The files are received one by one to save
* bandwidth and avoid issues.
*
* @param nbFile The number of file to receive.
* @param o The observer to notify once a file is fully received.
* @throws UnknownHostException
* @throws IOException
*/
public FileTransferServer(int nbFile, ObserverInputMessage o) throws UnknownHostException, IOException {
this.sockFTListen = ServerSocketChannel.open();
this.sockFTListen.socket().bind(new InetSocketAddress(0));
this.nbFile = nbFile;
this.obsInput = o;
}
/**
* @return The port binded to the ServerSocketChannel.
*/
public int getPort() {
return this.sockFTListen.socket().getLocalPort();
}
@Override
public void run() {
try {
for (int i = 0; i < this.nbFile; i++) {
SocketChannel sock = this.sockFTListen.accept();
Thread ft = new FileTransferReceivingThread(sock, this.obsInput);
ft.start();
ft.join();
}
this.sockFTListen.close();
} catch (IOException | InterruptedException e) {
e.printStackTrace();
}
}
}

150
POO/src/communication/filetransfer/FileTransferUtils.java
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@ -1,150 +0,0 @@
package communication.filetransfer;
import java.awt.Graphics2D;
import java.awt.GraphicsConfiguration;
import java.awt.GraphicsDevice;
import java.awt.GraphicsEnvironment;
import java.awt.geom.AffineTransform;
import java.awt.image.BufferedImage;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.Base64;
import java.util.List;
import javax.imageio.ImageIO;
import messages.MessageFichier;
import messages.MauvaisTypeMessageException;
import messages.Message.TypeMessage;
public class FileTransferUtils {
// Relative path of the folder where are put the received files
protected static final String DOWNLOADS_RELATIVE_PATH = "../downloads/";
protected static final ArrayList<String> IMAGE_EXTENSIONS = new ArrayList<String>(
List.of("tif", "tiff", "bmp", "jpg", "jpeg", "gif", "png", "eps", "svg"));
protected static final int KB_SIZE = 1024;
/**
* Process what to display on the chat depending on the file sent/received. A
* thumbnail will be created in the case of an image, A String with the file's
* name will be created otherwise.
*
* @param file The file to process.
* @return A message of which content is either a thumbnail or the file's name.
* @throws IOException
*/
protected static MessageFichier processMessageToDisplay(File file) throws IOException {
String nameFile = file.getName();
String extension = processFileExtension(nameFile);
TypeMessage type;
String contenu;
if (IMAGE_EXTENSIONS.contains(extension)) {
type = TypeMessage.IMAGE;
BufferedImage img = ImageIO.read(file);
contenu = encodeImage(createThumbnail(img), extension);
} else {
type = TypeMessage.FICHIER;
contenu = nameFile;
}
try {
return new MessageFichier(type, contenu, extension);
} catch (MauvaisTypeMessageException e) {
e.printStackTrace();
}
return null;
}
/**
* @param fileName The name of the file (with its extension).
* @return The extension of the file.
*/
protected static String processFileExtension(String fileName) {
String extension = "";
int i = fileName.indexOf('.');
if (i >= 0 || i != -1) {
extension = fileName.substring(i + 1).toLowerCase();
}
return extension;
}
/**
* @param image A buffered image.
* @return A thumbnail of the image.
*/
private static BufferedImage createThumbnail(BufferedImage image) {
float w = image.getWidth();
float ratio = (w > 150) ? (150F / w) : 1;
BufferedImage scaled = scale(image, ratio);
return scaled;
}
/**
* @param img A buffered image.
* @param extension The extension of the image.
* @return The base64 encoded string corresponding to the given image.
* @throws IOException
*/
private static String encodeImage(BufferedImage img, String extension) throws IOException {
ByteArrayOutputStream bos = new ByteArrayOutputStream();
ImageIO.write(img, extension, bos);
String imgString = Base64.getEncoder().encodeToString(bos.toByteArray());
bos.close();
return imgString;
}
/**
* @param imageString The base64 encoded string of an image.
* @return A buffered image corresponding to the given base64 encoded string.
* @throws IOException
*/
public static BufferedImage decodeImage(String imageString) throws IOException {
byte[] imgData = Base64.getDecoder().decode(imageString);
InputStream is = new ByteArrayInputStream(imgData);
BufferedImage img = ImageIO.read(is);
is.close();
return img;
}
// Used to scale an image with a given ratio
private static BufferedImage scale(BufferedImage source, double ratio) {
int w = (int) (source.getWidth() * ratio);
int h = (int) (source.getHeight() * ratio);
BufferedImage bi = getCompatibleImage(w, h);
Graphics2D g2d = bi.createGraphics();
double xScale = (double) w / source.getWidth();
double yScale = (double) h / source.getHeight();
AffineTransform at = AffineTransform.getScaleInstance(xScale, yScale);
g2d.drawRenderedImage(source, at);
g2d.dispose();
return bi;
}
private static BufferedImage getCompatibleImage(int w, int h) {
GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
GraphicsDevice gd = ge.getDefaultScreenDevice();
GraphicsConfiguration gc = gd.getDefaultConfiguration();
BufferedImage image = gc.createCompatibleImage(w, h);
return image;
}
/**
* Create the folder with the path "DOWNLOADS_RELATIVE_PATH" if it does not
* exist.
*/
public static void createDownloads() {
File downloads = new File(FileTransferUtils.DOWNLOADS_RELATIVE_PATH);
if (!downloads.exists()) {
downloads.mkdir();
}
}
}

97
POO/src/communication/tcp/TCPClient.java
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@ -1,97 +0,0 @@
package communication.tcp;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.net.Socket;
import observers.ObserverInputMessage;
import observers.ObserverSocketState;
import messages.Message;
public class TCPClient {
private Socket sockTCP;
private ObjectOutputStream output;
private ObjectInputStream input;
private TCPInputThread inputThread;
/**
* Create a TCP client from an existing socket. It will ensure the transmission
* of messages during a session. Two ObjectStream are created in order to
* read/write messages. The ObjectInputStream is given to a thread to read
* continuously the incoming message and allowing the user to write a message
* anytime.
*
* @param sockTCP
* @throws IOException
*/
public TCPClient(Socket sockTCP) throws IOException {
this.sockTCP = sockTCP;
this.output = new ObjectOutputStream(sockTCP.getOutputStream());
this.input = new ObjectInputStream(sockTCP.getInputStream());
this.inputThread = new TCPInputThread(this.input);
}
/**
* Start the thread that will continuously read from the socket.
*/
public void startInputThread() {
this.inputThread.start();
}
/**
* Send a message by writing it in the ObjectOutputStream of the socket
*
* @param message
* @throws IOException
*/
public void sendMessage(Message message) throws IOException {
this.output.writeObject(message);
}
/**
* Set the observer to notify when a message is received
*
* @param o The observer
*/
public void setObserverInputThread(ObserverInputMessage o) {
this.inputThread.setObserverInputMessage(o);
}
/**
* Set the observer to notify when the session is closed/the communication is
* broken.
*
* @param o The observer
*/
public void setObserverSocketState(ObserverSocketState o) {
this.inputThread.setObserverSocketState(o);
}
/**
* Method used when the session is over. Set all attributes' references to null,
* interrupt the inputThread and close the streams and the socket.
*/
public void destroyAll() {
try {
if (!this.sockTCP.isClosed()) {
this.inputThread.setObserverSocketState(null);
this.inputThread.interrupt();
this.input.close();
this.output.close();
this.sockTCP.close();
}
this.inputThread = null;
this.sockTCP = null;
this.output = null;
} catch (Exception e) {
e.printStackTrace();
}
}
}

77
POO/src/communication/tcp/TCPInputThread.java
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package communication.tcp;
import java.io.IOException;
import java.io.ObjectInputStream;
import observers.ObserverInputMessage;
import observers.ObserverSocketState;
public class TCPInputThread extends Thread {
private ObjectInputStream input;
private boolean running;
private ObserverInputMessage obsInput;
private ObserverSocketState obsState;
/**
* Create the thread used to read the messages
*
* @param input The ObjectInputStream to read data from
*/
protected TCPInputThread(ObjectInputStream input) {
this.input = input;
this.running = true;
}
@Override
public void run() {
while (this.running) {
try {
Object o = this.input.readObject();
// Notify the observer a message was received
this.obsInput.updateInput(this, o);
} catch (IOException | ClassNotFoundException e) {
this.interrupt();
}
}
}
@Override
public void interrupt() {
// Stop the thread
this.running = false;
// Close the stream and the socket
if (this.obsState != null) {
// Send an update to the controller
this.obsState.updateSocketState(this, true);
}
// Set every attribute to null so they're collected by the GC
this.obsInput = null;
this.obsState = null;
this.input = null;
}
/**
* Set the observer to notify when a message is received
*
* @param o The observer
*/
protected void setObserverInputMessage(ObserverInputMessage o) {
this.obsInput = o;
}
/**
* Set the observer to notify when the session is cut/closed.
*
* @param o The observer
*/
protected void setObserverSocketState(ObserverSocketState o) {
this.obsState = o;
}
}

52
POO/src/communication/tcp/TCPServer.java
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@ -1,52 +0,0 @@
package communication.tcp;
import java.io.IOException;
import java.net.InetAddress;
import java.net.ServerSocket;
import java.net.Socket;
import java.net.UnknownHostException;
import observers.ObserverInputMessage;
public class TCPServer extends Thread {
private ServerSocket sockListenTCP;
private ObserverInputMessage obsInput;
/**
* Create a TCP Server on the specified port. It will listen continuously for
* connections in order to create new sessions between users.
*
* @param port The port on which the server will listen
* @throws UnknownHostException
* @throws IOException
*/
public TCPServer(int port) throws UnknownHostException, IOException {
this.sockListenTCP = new ServerSocket(port, 50, InetAddress.getLocalHost());
}
@Override
public void run() {
Socket sockAccept;
while (true) {
try {
sockAccept = this.sockListenTCP.accept();
// Notify the observer of the new connexion
this.obsInput.updateInput(this, sockAccept);
} catch (IOException e) {
e.printStackTrace();
}
}
}
/**
* Set the observer to notify when a new connection is made.
*
* @param o The observer
*/
public void addObserver(ObserverInputMessage o) {
this.obsInput = o;
}
}

295
POO/src/communication/udp/CommunicationUDP.java
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package communication.udp;
import java.io.IOException;
import java.net.InetAddress;
import java.net.UnknownHostException;
import java.util.ArrayList;
import main.Utilisateur;
import messages.*;
import observers.ObserverUserList;
public class CommunicationUDP extends Thread {
private UDPClient client;
private UDPServer server;
private int portServer;
private ArrayList<Integer> portOthers;
private ArrayList<Utilisateur> users = new ArrayList<Utilisateur>();
private ObserverUserList obsList;
/**
* Create the object that will manage the userlist and contain a UDPClient and a
* UDPServer. Since the applications will run on localhost, it needs to know
* every UDPServer ports used in order to replicate a broadcast behaviour.
*
* @param portClient The port number for the UDPClient
* @param portServer The port number for the UDPServer
* @param portsOther The port numbers for every other application's UDPServer
* @throws IOException
*/
public CommunicationUDP(int portClient, int portServer, int[] portsOther) throws IOException {
this.portServer = portServer;
this.portOthers = this.getArrayListFromArray(portsOther);
this.server = new UDPServer(portServer, this);
this.server.start();
this.client = new UDPClient(portClient);
}
/**
* Create an ArrayList<Integer> from the int[] list of every servers' ports and
* remove the port of this application UDPServer.
*
* @param ports The UDPServer port numbers.
* @return An ArrayList<Integer> without the port of this UDPServer.
*/
private ArrayList<Integer> getArrayListFromArray(int ports[]) {
ArrayList<Integer> tmp = new ArrayList<Integer>();
for (int port : ports) {
tmp.add(port);
}
tmp.remove(Integer.valueOf(portServer));
return tmp;
}
/**
* Set the observer to notify when the userList is updated.
*
* @param obs The observer
*/
public void setObserver(ObserverUserList o) {
this.obsList = o;
}
// -------------- USER LIST UPDATE METHODS -------------- //
/**
* Add a new user to the userlist and notify the observer.
*
* @param idClient
* @param pseudoClient
* @param ipClient
* @param port
* @throws UnknownHostException
*/
protected synchronized void addUser(String idUser, String pseudoUser, InetAddress ipUser, int portTCPServer)
throws UnknownHostException {
users.add(new Utilisateur(idUser, pseudoUser, ipUser, portTCPServer));
this.sendUpdate();
}
/**
* Change the pseudo of an user and notify the observer if it exists in the
* userlist. Do nothing otherwise.
*
* @param idClient
* @param pseudoClient
* @param ipClient
* @param port
*/
protected synchronized void changePseudoUser(String idUser, String pseudoUser, InetAddress ipUser,
int portTCPServer) {
int index = getIndexFromID(idUser);
if (index != -1) {
users.get(index).setPseudo(pseudoUser);
this.sendUpdate();
}
}
/**
* Remove an user from the userlist and notify the observer if it exists in the
* userlist. Do nothing otherwise.
*
* @param idUser
* @param pseudoUser
* @param ipUser
* @param portTCPServer
*/
protected synchronized void removeUser(String idUser, String pseudoUser, InetAddress ipUser, int portTCPServer) {
int index = getIndexFromID(idUser);
if (index != -1) {
users.remove(index);
this.sendUpdate();
}
}
public void removeAllUsers() {
this.users.clear();
}
// -------------- CHECKERS -------------- //
/**
* Check if there is an user in the list that has the given id.
*
* @param id The user's id.
* @return True if the user is in the list
* false otherwise.
*/
protected boolean containsUserFromID(String id) {
for (Utilisateur u : users) {
if (u.getId().equals(id)) {
return true;
}
}
return false;
}
/**
* Check if there is an user in the list that has the given pseudo.
*
* @param pseudo The user's pseudo.
* @return True if the user is in the list
* false otherwise.
*/
public boolean containsUserFromPseudo(String pseudo) {
for (Utilisateur u : users) {
if (u.getPseudo().toLowerCase().equals(pseudo)) {
return true;
}
}
return false;
}
// -------------- GETTERS -------------- //
/**
* Return the user with the given pseudo if it exists in the list.
*
* @param pseudo The user's pseudo.
* @return The user if it exists in the list.
* null otherwise.
*/
public Utilisateur getUserFromPseudo(String pseudo) {
for (int i = 0; i < users.size(); i++) {
if (users.get(i).getPseudo().equals(pseudo)) {
return users.get(i);
}
}
return null;
}
/**
* Return the index of the user with the given id if it exists in the list.
*
* @param id The user's id.
* @return The index if the user exists in the list.
* null otherwise
*/
private int getIndexFromID(String id) {
for (int i = 0; i < users.size(); i++) {
if (users.get(i).getId().equals(id)) {
return i;
}
}
return -1;
}
// -------------- SEND MESSAGES METHODS -------------- //
/**
* Send a message indicating this application's user is connected to every
* UDPServer.
*
* @throws UnknownHostException
* @throws IOException
*/
public void sendMessageConnecte() throws UnknownHostException, IOException {
try {
Message msgOut = new MessageSysteme(Message.TypeMessage.JE_SUIS_CONNECTE);
for (int port : this.portOthers) {
this.client.sendMessageUDP_local(msgOut, port);
}
} catch (MauvaisTypeMessageException e) {
e.printStackTrace();
}
}
/**
* Send a message containing this application's user's data to every UDPServer.
* This method is used to first add this user in the userlist or update this
* user's pseudo.
*
* @throws UnknownHostException
* @throws IOException
*/
public void sendMessageInfoPseudo() throws UnknownHostException, IOException {
Utilisateur self = Utilisateur.getSelf();
try {
Message msgOut = new MessageSysteme(Message.TypeMessage.INFO_PSEUDO, self.getPseudo(), self.getId(),
self.getPort());
for (int port : this.portOthers) {
this.client.sendMessageUDP_local(msgOut, port);
}
} catch (MauvaisTypeMessageException e) {
e.printStackTrace();
}
}
/**
* Send a message containing this application's user's data to one user. This
* method is used to answer back when receiving a message with the type
* "JE_SUIS_CONNECTE"
*
* @param portOther The port on which the other user's UDPServer is listening
* @throws UnknownHostException
* @throws IOException
*/
public void sendMessageInfoPseudo(int portOther) throws UnknownHostException, IOException {
Utilisateur self = Utilisateur.getSelf();
try {
Message msgOut = new MessageSysteme(Message.TypeMessage.INFO_PSEUDO, self.getPseudo(), self.getId(),
self.getPort());
this.client.sendMessageUDP_local(msgOut, portOther);
} catch (MauvaisTypeMessageException e) {
e.printStackTrace();
}
}
/**
* Send a message indicating this application's user is disconnected to every
* UDPServer.
*
* @throws UnknownHostException
* @throws IOException
*/
public void sendMessageDelete() throws UnknownHostException, IOException {
Utilisateur self = Utilisateur.getSelf();
try {
Message msgOut = new MessageSysteme(Message.TypeMessage.JE_SUIS_DECONNECTE, self.getPseudo(), self.getId(),
self.getPort());
for (int port : this.portOthers) {
this.client.sendMessageUDP_local(msgOut, port);
}
} catch (MauvaisTypeMessageException e) {
e.printStackTrace();
}
}
// -------------- OTHERS -------------- //
/**
* Notify the observer with the updated list
*/
private void sendUpdate() {
if (this.obsList != null) {
this.obsList.updateList(this, users);
}
}
}

55
POO/src/communication/udp/UDPClient.java
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@ -1,55 +0,0 @@
package communication.udp;
import java.io.IOException;
import java.net.DatagramPacket;
import java.net.DatagramSocket;
import java.net.InetAddress;
import java.net.SocketException;
import java.net.UnknownHostException;
import messages.*;
class UDPClient {
private DatagramSocket sockUDP;
/**
* Create an UDP client on the specified port. It will be used to notify the
* other users of this application's user state (Connected/Disconnected/Pseudo
* changed).
*
* @param port
* @throws SocketException
* @throws UnknownHostException
*/
public UDPClient(int port) throws SocketException, UnknownHostException {
this.sockUDP = new DatagramSocket(port);
}
/**
* Send a message to the specified port on localhost.
*
* @param message
* @param port
* @throws IOException
*/
protected void sendMessageUDP_local(Message message, int port) throws IOException {
sendMessageUDP(message, port, InetAddress.getLocalHost());
}
/**
* Send a message to the given address on the specified port.
*
* @param message
* @param port
* @param clientAddress
* @throws IOException
*/
private void sendMessageUDP(Message message, int port, InetAddress clientAddress) throws IOException {
String messageString = message.toString();
DatagramPacket outpacket = new DatagramPacket(messageString.getBytes(), messageString.length(), clientAddress,
port);
this.sockUDP.send(outpacket);
}
}

99
POO/src/communication/udp/UDPServer.java
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package communication.udp;
import java.io.IOException;
import java.net.DatagramPacket;
import java.net.DatagramSocket;
import java.net.SocketException;
import main.Utilisateur;
import messages.*;
class UDPServer extends Thread {
private DatagramSocket sockUDP;
private CommunicationUDP commUDP;
private byte[] buffer;
private boolean running;
/**
* Create an UDP Server on the specified port. It will be used to read the
* other users states (Connected/Disconnected/Pseudo).
*
* @param port
* @param commUDP
* @throws SocketException
*/
public UDPServer(int port, CommunicationUDP commUDP) throws SocketException {
this.running = true;
this.commUDP = commUDP;
this.sockUDP = new DatagramSocket(port);
this.buffer = new byte[256];
}
@Override
public void run() {
while (this.running) {
try {
//When a datagram is received, converts its data in a Message
DatagramPacket inPacket = new DatagramPacket(buffer, buffer.length);
this.sockUDP.receive(inPacket);
String msgString = new String(inPacket.getData(), 0, inPacket.getLength());
Message msg = Message.stringToMessage(msgString);
//Depending on the type of the message
switch (msg.getTypeMessage()) {
case JE_SUIS_CONNECTE:
if (Utilisateur.getSelf() != null) {
int portClient = inPacket.getPort();
int portServer = portClient+1;
//Answer back with this application's user data
this.commUDP.sendMessageInfoPseudo(portServer);
}
break;
case INFO_PSEUDO:
MessageSysteme m = (MessageSysteme) msg;
//Update the userlist with the data received (Add the user or update it)
if (this.commUDP.containsUserFromID(m.getId())) {
this.commUDP.changePseudoUser(m.getId(), m.getPseudo(), inPacket.getAddress(), m.getPort());
} else {
this.commUDP.addUser(m.getId(), m.getPseudo(), inPacket.getAddress(), m.getPort());
}
break;
case JE_SUIS_DECONNECTE:
MessageSysteme m2 = (MessageSysteme) msg;
//Remove the user from the userlist
this.commUDP.removeUser(m2.getId(), m2.getPseudo(), inPacket.getAddress(), m2.getPort());
break;
//Do nothing
default:
}
} catch (IOException e) {
e.printStackTrace();
}
}
}
@Override
public void interrupt() {
// Stop the thread
this.running = false;
// Close the stream and the socket
this.sockUDP.close();
this.buffer = null;
this.commUDP = null;
}
}

179
POO/src/connexion/ControleurConnexion.java
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package connexion;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.IOException;
import java.net.UnknownHostException;
import java.sql.SQLException;
import communication.udp.CommunicationUDP;
import database.SQLiteManager;
import main.Utilisateur;
import standard.VueStandard;
public class ControleurConnexion implements ActionListener{
//Controller state : either DEBUT at initialization or ID_OK if the user has signed in
private enum Etat {DEBUT, ID_OK};
private VueConnexion vue;
private Etat etat;
private CommunicationUDP comUDP;
private int portTCP;
private String username;
private SQLiteManager sqlManager;
private VueStandard vueStd;
/**
* Create and initialize the object in charge of monitoring all actions depending on what the user do.
*
* @param vue : associated instance of VueConnexion
* @param numtest : on local mode, allows you to choose which port to use. Integer between 0 and 3
*
*/
public ControleurConnexion(VueConnexion vue, int numtest) {
this.vue = vue;
this.etat = Etat.DEBUT;
this.username = "";
this.sqlManager = new SQLiteManager(0);
this.vueStd = null;
int[] portServer = {2209, 2309, 2409, 2509, 3334};
try {
switch(numtest) {
case 0 :
this.comUDP = new CommunicationUDP(2208, 2209, portServer);
this.portTCP = 7010;
break;
case 1 :
this.comUDP = new CommunicationUDP(2308, 2309, portServer);
this.portTCP = 7020;
break;
case 2 :
this.comUDP = new CommunicationUDP(2408, 2409, portServer);
this.portTCP = 7030;
break;
case 3 :
this.comUDP = new CommunicationUDP(2508, 2509, portServer);
this.portTCP = 7040;
break;
default :
this.comUDP = new CommunicationUDP(2408, 2409, portServer);
this.portTCP = 7040;
}
} catch (IOException e) {
}
}
@Override
public void actionPerformed(ActionEvent e) {
String pseudo;
boolean inputOK = false;
if (this.etat == Etat.DEBUT) {
this.username = this.vue.getUsernameValue();
char[] password = this.vue.getPasswordValue();
try {
int res = this.sqlManager.checkPwd(this.username, password);
inputOK = (res == 1);
} catch (SQLException e2) {
}
if (inputOK) {
this.etat=Etat.ID_OK;
//Broadcast "JE_SUIS_CONNECTE" message and waits for the other devices' answers
try {
comUDP.sendMessageConnecte();
} catch (IOException e2) {
}
try {
Thread.sleep(2);
} catch (InterruptedException e1) {
}
//setup pseudo ask
this.vue.setConnexionInfo("");
this.vue.removePasswordPanel();
this.vue.setTextUsernameField("Veuillez entrer votre pseudonyme");
this.vue.resetUsernameField();
inputOK=false;
}
else {
this.vue.setConnexionInfo("Identifiant ou mot de passe invalide, veuillez réessayer");
this.vue.resetPasswordField();
}
}
else {
pseudo = vue.getUsernameValue();
//Search in the local list of active users id the chosen pseudo is already in use
inputOK = !this.comUDP.containsUserFromPseudo(pseudo);
if(pseudo.equals("")) {
this.vue.setConnexionInfo("Votre pseudonyme doit contenir au moins 1 caratère");
}else if (inputOK) {
//setup Utilisateur "self" static attribute
try {
Utilisateur.setSelf(this.username, pseudo, "localhost", this.portTCP);
} catch (UnknownHostException e2) {
}
//broadcast new pseudo
try {
this.comUDP.sendMessageInfoPseudo();
} catch (UnknownHostException e1) {
} catch (IOException e1) {
}
try {
this.resetView();
this.vue.setVisible(false);
this.setVueStandard();
} catch (IOException e1) {
}
}
else this.vue.setConnexionInfo("Ce nom est déjà utilisé, veuillez en choisir un autre");
}
}
// ----- SETTING & RESETTING VIEW ----- //
/**
* Create a new VueStandard instance and give it the hand.
*
*/
private void setVueStandard() throws IOException {
if(this.vueStd == null) {
this.vueStd = new VueStandard("Standard", this.comUDP, this.portTCP, this.sqlManager, this.vue);
}else {
this.vueStd.initControleur();
this.vueStd.setPseudoSelf();
this.vueStd.setVisible(true);
}
}
/**
* Restore the associated instance of VueConnexion to its initial state
*
*/
private void resetView() {
this.etat = Etat.DEBUT;
this.vue.addPasswordPanel();
this.vue.resetPasswordField();
this.vue.resetUsernameField();
this.vue.setTextUsernameField("Nom d'utilisateur");
this.vue.setConnexionInfo("");
}
}

171
POO/src/connexion/VueConnexion.java
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@ -1,171 +0,0 @@
package connexion;
//Import librairies
import java.awt.*;
import javax.swing.*;
import database.SQLiteManager;
import main.Vue;
public class VueConnexion extends Vue {
private static final long serialVersionUID = 1L;
//Graphical elements
private JButton boutonValider;
private JTextField inputUsername;
private JPasswordField inputPassword;
private JLabel labelUsername;
private JLabel labelPassword;
private JLabel connexionInfo;
private JPanel main;
private JPanel panelPassword;
//Controller
private ControleurConnexion controle;
/**
* Create and initialize the view SWING window that will be used during the connection phase.
* Doing so, it also creates the controller that will monitor all changes during the connection phase.
*
* @param numtest : to be passed down to the controller
*
*/
public VueConnexion(int numtest) {
super("Connexion");
controle = new ControleurConnexion(this, numtest);
//Window creation
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
this.setSize(400, 300);
this.setLocationRelativeTo(null);
//Adding graphical elements
ajouterElements();
//Setting default button
this.getRootPane().setDefaultButton(boutonValider);
this.inputUsername.setText(SQLiteManager.hardcodedNames[numtest]+numtest);
this.inputPassword.setText("aze1$"+SQLiteManager.hardcodedNames[numtest].charAt(0)+numtest);
//Display window
this.setVisible(true);
}
// ----- ADDING ELEMENTS TO AND REMOVING ELEMENTS FROM THE MAIN WINDOW ----- //
/**
* Add various graphical elements to the main window : used when initializing the window
*/
private void ajouterElements() {
//Create a panel
main = new JPanel(new GridLayout(4,1));
JPanel panelUsername = new JPanel(new GridLayout(1, 2));
this.panelPassword = new JPanel(new GridLayout(1, 2));
//Create various elements
this.connexionInfo = new JLabel("");
this.inputUsername = new JTextField();
this.inputUsername.setPreferredSize(new Dimension(100, 50));
this.labelUsername = new JLabel("Nom d'utilisateur");
this.labelUsername.setBorder(BorderFactory.createEmptyBorder(5,5,5,5));
this.inputPassword = new JPasswordField();
this.inputPassword.setPreferredSize(new Dimension(100, 50));
this.labelPassword = new JLabel("Mot de passe :");
this.labelPassword.setBorder(BorderFactory.createEmptyBorder(5,5,5,5));
boutonValider = new JButton("Valider");
//Make it so the controller is monitoring the button
boutonValider.addActionListener(controle);
panelUsername.add(this.labelUsername);
panelUsername.add(this.inputUsername);
this.panelPassword.add(this.labelPassword);
this.panelPassword.add(this.inputPassword);
main.add(connexionInfo);
main.add(panelUsername);
main.add(this.panelPassword);
main.add(boutonValider);
this.add(main);
}
protected void removePasswordPanel() {
this.main.remove(2);
}
protected void addPasswordPanel() {
this.main.add(this.panelPassword, 2);
}
//----- GETTERS -----//
/**
* Returns the current value of the field inputUsername
*
* @return current value of the field inputUsername as String
*/
protected String getUsernameValue() {
return this.inputUsername.getText();
}
/**
* Returns the current value of the field inputPassword
*
* @return current value of the field inputPassword as String
*/
protected char[] getPasswordValue() {
return this.inputPassword.getPassword();
}
//----- SETTERS -----//
/**
* Set a displayed message that will give the user information (for example if they entered a wrong password)
*
* @param text : message to display as String
*/
protected void setConnexionInfo(String text) {
this.connexionInfo.setText(text);
}
/**
* Set the label for the inputUsername fiel
*
* @param text : label to display as String
*/
protected void setTextUsernameField(String text) {
this.labelUsername.setText(text);
}
/**
* Empty the inputUsername text field
*/
protected void resetUsernameField() {
this.inputUsername.setText("");
}
/**
* Empty the inputPassword text field
*/
protected void resetPasswordField() {
this.inputPassword.setText("");
}
}

117
POO/src/database/SQLiteCreateTables.java
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@ -1,117 +0,0 @@
package database;
import java.sql.Connection;
import java.sql.SQLException;
import java.sql.Statement;
class SQLiteCreateTables {
/**
* Create the user table if it does not exist in the database.
* An user is characterized by :
* - an unique username,
* - a password salt,
* - a database_key salt,
* - a password hash encrypted by the database_key,
* - the encrypted database_key,
* - the initialization vector used to encrypt the database key.
*
* @param connec The opened connection to the database.
* @throws SQLException
*/
protected static void createTableUser(Connection connec) throws SQLException {
String createTableUser = "CREATE TABLE IF NOT EXISTS user (\r\n"
+ " id INTEGER PRIMARY KEY AUTOINCREMENT,\r\n"
+ " username VARCHAR (50) NOT NULL\r\n"
+ " UNIQUE ON CONFLICT ROLLBACK,\r\n"
+ " pwd_salt BLOB,\r\n"
+ " db_datakey_salt BLOB,\r\n"
+ " encrypted_pwd_hashsalt BLOB,\r\n"
+ " encrypted_db_datakey BLOB,\r\n"
+ " iv_datakey BLOB\r\n" + ");";
Statement stmt = connec.createStatement();
stmt.execute(createTableUser);
}
/**
* Create the conversation table if it does not exist in the database.
* A conversation is characterized by :
* - the id of the user who sends the messages,
* - the id of the user who receives the messages,
* - an initialization vector used to encrypt the conversation's messages.
*
* During an session between two users, two conversations are created.
*
* @param connec The opened connection to the database.
* @throws SQLException
*/
protected static void createTableConversation(Connection connec) throws SQLException {
String createTableConversation = "CREATE TABLE IF NOT EXISTS conversation (\r\n"
+ " id_conversation INTEGER PRIMARY KEY AUTOINCREMENT,\r\n"
+ " id_sender INTEGER REFERENCES user (id) \r\n" + " NOT NULL,\r\n"
+ " id_receiver INTEGER REFERENCES user (id) \r\n" + " NOT NULL,\r\n"
+ " iv_conversation BLOB NOT NULL" + ");";
Statement stmt = connec.createStatement();
stmt.execute(createTableConversation);
}
/**
* Create the message table if it does not exist in the database.
* A message is characterized by :
* - the id of the conversation it belongs,
* - the id of its type,
* - its content,
* - the date when it was emitted,
* - its extension if it is a file (text or image).
*
* @param connec The opened connection to the database.
* @throws SQLException
*/
protected static void createTableMessage(Connection connec) throws SQLException {
String createTableMessage = "CREATE TABLE IF NOT EXISTS message (\r\n"
+ " id_message INTEGER PRIMARY KEY AUTOINCREMENT,\r\n"
+ " id_conversation INTEGER REFERENCES conversation (id_conversation) \r\n"
+ " NOT NULL,\r\n"
+ " id_type INTEGER REFERENCES type (id_type) \r\n"
+ " NOT NULL,\r\n"
+ " content BLOB,\r\n"
+ " date INTEGER NOT NULL,\r\n"
+ " extension VARCHAR (20) \r\n" + ");\r\n";
Statement stmt = connec.createStatement();
stmt.execute(createTableMessage);
}
/**
* Create the (message) type table if it does not exist and insert the different
* types of message in the database.
* A type is characterized by :
* - a label.
*
* This table only exists because the type "enumeration" does not exist in SQLite.
* It is a static table that contains the different types of message stored in the database.
*
* @param connec The opened connection to the database.
* @throws SQLException
*/
protected static void createTableType(Connection connec) throws SQLException {
String createTableType = "CREATE TABLE IF NOT EXISTS type (\r\n"
+ " id_type INTEGER PRIMARY KEY,\r\n"
+ " label VARCHAR (20) NOT NULL\r\n" + ");";
Statement stmt = connec.createStatement();
stmt.execute(createTableType);
String typeText = "INSERT OR IGNORE INTO type (id_type, label) " + "VALUES (0, 'text');";
String typeFile = "INSERT OR IGNORE INTO type (id_type, label) " + "VALUES (1, 'file');";
String typeImage = "INSERT OR IGNORE INTO type (id_type, label) " + "VALUES (2, 'image');";
stmt.execute(typeText);
stmt.execute(typeFile);
stmt.execute(typeImage);
}
}

158
POO/src/database/SQLiteEncryption.java
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@ -1,158 +0,0 @@
package database;
import java.util.Base64;
import java.util.Random;
import javax.crypto.*;
import javax.crypto.spec.*;
import java.security.*;
import java.security.spec.*;
class SQLiteEncryption {
private static final Random RANDOM = new SecureRandom();
private static final int ITERATIONS = 10000;
private static final int KEY_LENGTH = 256;
protected static final String encryptAlgorithm = "AES/CBC/PKCS5Padding";
/**
* Return a 24 bytes salt.
*
* @return The salt in a byte array.
*/
protected static byte[] getNextSalt() {
byte[] salt = new byte[24];
RANDOM.nextBytes(salt);
return salt;
}
/**
* Return the hash of the given password with the given salt.
*
* @param password
* @param salt
* @return The hash in a byte array.
*/
protected static byte[] hash(char[] password, byte[] salt) {
return SQLiteEncryption.getKey(password, salt).getEncoded();
}
/**
* Return a secret key generated with the given password and salt.
*
* @param password
* @param salt
* @return The secret key.
*/
protected static SecretKey getKey(char[] password, byte[] salt) {
PBEKeySpec saltpwd = new PBEKeySpec(password, salt, ITERATIONS, KEY_LENGTH);
try {
SecretKeyFactory skf = SecretKeyFactory.getInstance("PBKDF2WithHmacSHA1");
SecretKey tmp = skf.generateSecret(saltpwd);
SecretKey key = new SecretKeySpec(tmp.getEncoded(), "AES");
return key;
} catch (InvalidKeySpecException | NoSuchAlgorithmException e) {
e.printStackTrace();
} finally {
saltpwd.clearPassword();
}
return null;
}
/**
* Return a 16 bytes Initialization vector.
*
* @return The Initialization vector.
*/
protected static IvParameterSpec generateIv() {
byte[] iv = new byte[16];
RANDOM.nextBytes(iv);
return new IvParameterSpec(iv);
}
/**
* Encrypt the given input (byte array) with the given algorithm, secretKey and
* initialization vector.
*
*
* @param algorithm
* @param input
* @param key
* @param iv
* @return The encrypted input in a byte array.
*
* @throws NoSuchAlgorithmException
* @throws NoSuchPaddingException
* @throws InvalidKeyException
* @throws InvalidAlgorithmParameterException
* @throws IllegalBlockSizeException
* @throws BadPaddingException
*/
protected static byte[] encrypt(String algorithm, byte[] input, SecretKey key, IvParameterSpec iv)
throws NoSuchAlgorithmException, NoSuchPaddingException, InvalidKeyException,
InvalidAlgorithmParameterException, IllegalBlockSizeException, BadPaddingException {
Cipher cipher = Cipher.getInstance(algorithm);
cipher.init(Cipher.ENCRYPT_MODE, key, iv);
byte[] cipherText = cipher.doFinal(input);
return Base64.getEncoder().encode(cipherText);
}
/**
* Decrypt the given input (byte array) with the given algorithm, secretKey and
* initialization vector.
*
* @param algorithm
* @param input
* @param key
* @param iv
* @return The decrypted input in a byte array.
*
* @throws NoSuchAlgorithmException
* @throws NoSuchPaddingException
* @throws InvalidKeyException
* @throws InvalidAlgorithmParameterException
* @throws IllegalBlockSizeException
* @throws BadPaddingException
*/
protected static byte[] decryptByte(String algorithm, byte[] input, SecretKey key, IvParameterSpec iv)
throws NoSuchAlgorithmException, NoSuchPaddingException, InvalidKeyException,
InvalidAlgorithmParameterException, IllegalBlockSizeException, BadPaddingException {
Cipher cipher = Cipher.getInstance(algorithm);
cipher.init(Cipher.DECRYPT_MODE, key, iv);
byte[] plainText = cipher.doFinal(Base64.getDecoder().decode(input));
return plainText;
}
/**
* Decrypt the given input (byte array) with the given algorithm, secretKey and
* initialization vector.
*
* @param algorithm
* @param input
* @param key
* @param iv
* @return The decrypted input as a String.
*
* @throws InvalidKeyException
* @throws NoSuchAlgorithmException
* @throws NoSuchPaddingException
* @throws InvalidAlgorithmParameterException
* @throws IllegalBlockSizeException
* @throws BadPaddingException
*/
protected static String decryptString(String algorithm, byte[] input, SecretKey key, IvParameterSpec iv)
throws InvalidKeyException, NoSuchAlgorithmException, NoSuchPaddingException,
InvalidAlgorithmParameterException, IllegalBlockSizeException, BadPaddingException {
return new String(SQLiteEncryption.decryptByte(algorithm, input, key, iv));
}
protected static byte[] keyToByte(SecretKey key) {
return Base64.getEncoder().encode(key.getEncoded());
}
protected static SecretKey byteToKey(byte[] encodedKey) {
byte[] decodedKey = Base64.getDecoder().decode(encodedKey);
return new SecretKeySpec(decodedKey, 0, decodedKey.length, "AES");
}
}

760
POO/src/database/SQLiteManager.java
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@ -1,760 +0,0 @@
package database;
import java.security.InvalidAlgorithmParameterException;
import java.security.InvalidKeyException;
import java.security.NoSuchAlgorithmException;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.ArrayList;
import javax.crypto.BadPaddingException;
import javax.crypto.IllegalBlockSizeException;
import javax.crypto.KeyGenerator;
import javax.crypto.NoSuchPaddingException;
import javax.crypto.SecretKey;
import javax.crypto.spec.IvParameterSpec;
import main.Utilisateur;
import messages.MauvaisTypeMessageException;
import messages.Message;
import messages.MessageTexte;
import messages.Message.TypeMessage;
import messages.MessageFichier;
public class SQLiteManager {
private static final String DATABASE_RELATIVE_PATH = "../database";
public static String[] hardcodedNames = { "Olivia", "Liam", "Benjamin", "Sophia", "Charlotte", "Noah", "Elijah",
"Isabella", "Oliver", "Emma", "William", "Amelia", "Evelyn", "James", "Mia", "Ava", "Lucas", "Mason",
"Ethan", "Harper" };
private Connection connec;
private int numDatabase;
private SecretKey dbDataKey;
/**
* Create the object that will interact with the database. Each time a
* SQLiteManager is created, it creates the tables for the application to work
* if they do not exist already. In the context of a local usage of the
* application, this constructor takes a number that is used to manage different
* database's files (see openConnection() ).
*
* @param numDatabase
*/
public SQLiteManager(int numDatabase) {
this.numDatabase = numDatabase;
this.openConnection();
try {
SQLiteCreateTables.createTableUser(this.connec);
SQLiteCreateTables.createTableConversation(this.connec);
SQLiteCreateTables.createTableType(this.connec);
SQLiteCreateTables.createTableMessage(this.connec);
} catch (SQLException e) {
this.closeConnection();
e.printStackTrace();
}
this.closeConnection();
}
// -------------- CONNECTION METHODS -------------- //
/**
* Open a connection to the file DATABASE_RELATIVE_PATH+this.numDatabase+".db"
*/
private void openConnection() {
String url = "jdbc:sqlite:" + DATABASE_RELATIVE_PATH + this.numDatabase + ".db";
try {
this.connec = DriverManager.getConnection(url);
} catch (SQLException e) {
System.out.println(e.getMessage());
}
}
/**
* Close this object connection, if it exists
*/
private void closeConnection() {
try {
if (this.connec != null) {
this.connec.close();
}
} catch (SQLException e) {
System.out.println(e.getMessage());
}
}
// -------------- INSERT METHODS -------------- //
/**
* Insert a collection of message in the database. They all correspond to the
* conversation between the sender and the receiver. The users and conversations
* are inserted in the database if they do not exist when this method is called.
*
* @param messages
* @param usernameSender
* @param usernameReceiver
* @return The number of messages inserted
* @throws SQLException
*/
public int insertAllMessages(ArrayList<Message> messages, String usernameSender, String usernameReceiver)
throws SQLException {
int nbRows = 0;
this.openConnection();
int idSender = this.getIDUser(usernameSender);
int idReceiver = this.getIDUser(usernameReceiver);
if (idSender == -1) {
this.insertUser(usernameSender);
idSender = this.getIDUser(usernameSender);
}
if (idReceiver == -1) {
this.insertUser(usernameReceiver);
idReceiver = this.getIDUser(usernameReceiver);
}
int idConversation = getIDConversation(idSender, idReceiver);
if (idConversation == -1) {
this.insertConversation(idSender, idReceiver);
idConversation = getIDConversation(idSender, idReceiver);
}
IvParameterSpec ivConversation = this.getIvConversation(idConversation);
// Disable autocommit to efficiently insert all the messages.
this.connec.setAutoCommit(false);
for (Message m : messages) {
try {
nbRows += this.insertMessage(idConversation, m, ivConversation);
} catch (SQLException e) {
e.printStackTrace();
this.connec.rollback();
}
}
// Commit once all the messages are inserted
this.connec.commit();
this.closeConnection();
return nbRows;
}
/**
* Insert a message corresponding to a given conversation (respresented by its
* id). The message content is first encrypted with the database key and the
* given iv.
*
* @param idConversation
* @param m
* @param iv
* @return The number of rows inserted (it should be 1).
* @throws SQLException
*/
private int insertMessage(int idConversation, Message m, IvParameterSpec iv) throws SQLException {
String dateMessage = m.getDateMessage();
String extension = this.processExtension(m);
String type = this.processMessageType(m);
int idType = this.getIDType(type);
byte[] content = null;
try {
content = this.stringToBytesContent(m, iv);
} catch (InvalidKeyException | NoSuchAlgorithmException | NoSuchPaddingException
| InvalidAlgorithmParameterException | IllegalBlockSizeException | BadPaddingException e) {
e.printStackTrace();
}
String insertMessageRequest = "INSERT INTO message(id_conversation, id_type, content, date, extension) "
+ "VALUES (?, ?, ?, ?, ?);";
PreparedStatement prepStmt = this.connec.prepareStatement(insertMessageRequest);
prepStmt.setInt(1, idConversation);
prepStmt.setInt(2, idType);
prepStmt.setBytes(3, content);
prepStmt.setString(4, dateMessage);
prepStmt.setString(5, extension);
int nbRows = prepStmt.executeUpdate();
return nbRows;
}
/**
* Insert an user in the database with only its username.
*
* @param username
* @throws SQLException
*/
private void insertUser(String username) throws SQLException {
String insertUserRequest = "INSERT INTO user (username) " + "VALUES (?);";
PreparedStatement prepStmt = this.connec.prepareStatement(insertUserRequest);
prepStmt.setString(1, username);
prepStmt.executeUpdate();
}
/**
* Insert the two conversations corresponding to a session between two users
* (they both can be sender and receiver).
*
* @param idUser1
* @param idUser2
* @throws SQLException
*/
private void insertConversation(int idUser1, int idUser2) throws SQLException {
String insertConversationRequest = "INSERT INTO conversation (id_sender, id_receiver, iv_conversation) "
+ "VALUES " + "(?, ?, ?)," + "(?, ?, ?);";
byte[] ivConversation = SQLiteEncryption.generateIv().getIV();
PreparedStatement prepStmt = this.connec.prepareStatement(insertConversationRequest);
prepStmt.setInt(1, idUser1);
prepStmt.setInt(2, idUser2);
prepStmt.setBytes(3, ivConversation);
prepStmt.setInt(4, idUser2);
prepStmt.setInt(5, idUser1);
prepStmt.setBytes(6, ivConversation);
prepStmt.executeUpdate();
}
// -------------- GET METHODS -------------- //
/**
* Get the message record between two users. In context, it only needs the
* username and the id of the other user since we can get this application's
* user's data with Utilisateur.getSelf().
*
* @param usernameOther
* @param pseudoOther
* @return the messages previously exchanged in chronological order or null if
* there is none.
* @throws SQLException
*/
public ArrayList<Message> getMessageRecord(String usernameOther, String pseudoOther) throws SQLException {
this.openConnection();
ArrayList<Message> messages = new ArrayList<Message>();
String usernameSelf = Utilisateur.getSelf().getId();
// Get the ids from the usernames
int idSelf = this.getIDUser(usernameSelf);
int idOther = this.getIDUser(usernameOther);
// Get the two conversations corresponding to the exchanges between the two
// users
int idConversationSelf = this.getIDConversation(idSelf, idOther);
int idConversationOther = this.getIDConversation(idOther, idSelf);
IvParameterSpec ivConversation = this.getIvConversation(idConversationSelf);
// Get all the messages
String getHistoriqueRequest = "SELECT id_conversation, id_type, content, date, extension " + "FROM message "
+ "WHERE id_conversation IN (?,?) " + "ORDER by date";
PreparedStatement prepStmt = this.connec.prepareStatement(getHistoriqueRequest);
prepStmt.setInt(1, idConversationSelf);
prepStmt.setInt(2, idConversationOther);
ResultSet res = prepStmt.executeQuery();
// Process the messages one by one
// Create the appropriate message object depending on the type and
// sender/receiver
// and add the message in the list
while (res.next()) {
int idType = res.getInt("id_type");
String type = this.getType(idType);
String content = null;
try {
// Decrypt the message's content with the database key and the conversation's
// iv.
content = this.bytesToStringContent(res.getBytes("content"), ivConversation);
} catch (InvalidKeyException | NoSuchAlgorithmException | NoSuchPaddingException
| InvalidAlgorithmParameterException | IllegalBlockSizeException | BadPaddingException
| SQLException e1) {
}
Message message = null;
String extension;
if (!type.equals("")) {
try {
switch (type) {
case "text":
message = new MessageTexte(TypeMessage.TEXTE, content);
break;
case "file":
extension = res.getString("extension");
message = new MessageFichier(TypeMessage.FICHIER, content, extension);
break;
default:
extension = res.getString("extension");
message = new MessageFichier(TypeMessage.IMAGE, content, extension);
}
} catch (MauvaisTypeMessageException e) {
e.printStackTrace();
}
}
if (res.getInt("id_conversation") == idConversationSelf) {
message.setSender("Moi");
} else {
message.setSender(pseudoOther);
}
message.setDateMessage(res.getString("date"));
if (content != null) {
messages.add(message);
}
}
this.closeConnection();
return messages;
}
/**
* Return the id of the user with the given username if it exists in the
* database.
*
* @param username
* @return The id of the user or -1 if he does not exist in the database.
* @throws SQLException
*/
private int getIDUser(String username) throws SQLException {
String getIDRequest = "SELECT id " + " FROM user" + " WHERE username = ? ;";
PreparedStatement prepStmt = this.connec.prepareStatement(getIDRequest);
prepStmt.setString(1, username);
ResultSet res = prepStmt.executeQuery();
if (res.next()) {
return res.getInt("id");
}
return -1;
}
/**
* Get the id of the conversation between two users (represented by their ids).
*
* @param idSender
* @param idReceiver
* @return The id of the conversation or -1 if the conversation does not exists
* in the database.
* @throws SQLException
*/
private int getIDConversation(int idSender, int idReceiver) throws SQLException {
String getIDRequest = "SELECT id_conversation " + "FROM conversation " + "WHERE id_sender = ? "
+ "AND id_receiver = ? ;";
PreparedStatement prepStmt = this.connec.prepareStatement(getIDRequest);
prepStmt.setInt(1, idSender);
prepStmt.setInt(2, idReceiver);
ResultSet res = prepStmt.executeQuery();
if (res.next()) {
return res.getInt("id_conversation");
}
return -1;
}
/**
* Get the initialization vector for a given conversation (represented by its
* id).
*
* @param idConversation
* @return The iv corresponding to the conversation or null if the conversation
* does not exist in the database.
* @throws SQLException
*/
private IvParameterSpec getIvConversation(int idConversation) throws SQLException {
String getIvRequest = "SELECT iv_conversation " + "FROM conversation " + "WHERE id_conversation = ?;";
PreparedStatement prepStmt = this.connec.prepareStatement(getIvRequest);
prepStmt.setInt(1, idConversation);
ResultSet res = prepStmt.executeQuery();
if (res.next()) {
return new IvParameterSpec(res.getBytes("iv_conversation"));
}
return null;
}
/**
* Get the id of the message type corresponding to the given label.
*
* @param label
* @return The id of the message type or -1 if it does not exist in the
* database.
* @throws SQLException
*/
private int getIDType(String label) throws SQLException {
String getIDRequest = "SELECT id_type FROM type WHERE label = ?;";
PreparedStatement prepStmt = this.connec.prepareStatement(getIDRequest);
prepStmt.setString(1, label);
ResultSet res = prepStmt.executeQuery();
if (res.next()) {
return res.getInt("id_type");
}
return -1;
}
/**
* Get the label of the message type corresponding to the given id.
*
* @param idType
* @return The label of the message type or "" if it does not exist in the
* database.
* @throws SQLException
*/
private String getType(int idType) throws SQLException {
String getTypeRequest = "SELECT label FROM type WHERE id_type = ?;";
PreparedStatement prepStmt = this.connec.prepareStatement(getTypeRequest);
prepStmt.setInt(1, idType);
ResultSet res = prepStmt.executeQuery();
if (res.next()) {
return res.getString("label");
}
return "";
}
// -------------- PROCESSING MESSAGE METHODS -------------- //
/**
* Convert a message in bytes. First get the content of the message. Then
* encrypt it with the database_key and the given iv (initialization vector).
*
* @param m
* @param iv
* @return The bytes of the encrypted message's content.
*
* @throws InvalidKeyException
* @throws NoSuchAlgorithmException
* @throws NoSuchPaddingException
* @throws InvalidAlgorithmParameterException
* @throws IllegalBlockSizeException
* @throws BadPaddingException
*/
private byte[] stringToBytesContent(Message m, IvParameterSpec iv)
throws InvalidKeyException, NoSuchAlgorithmException, NoSuchPaddingException,
InvalidAlgorithmParameterException, IllegalBlockSizeException, BadPaddingException {
String content;
if (m.getTypeMessage() == TypeMessage.TEXTE) {
MessageTexte messageTxt = (MessageTexte) m;
content = messageTxt.getContenu();
} else {
MessageFichier messageFichier = (MessageFichier) m;
content = messageFichier.getContenu();
}
byte[] encryptedContent = SQLiteEncryption.encrypt(SQLiteEncryption.encryptAlgorithm, content.getBytes(),
this.dbDataKey, iv);
return encryptedContent;
}
/**
* Convert bytes in a String. In this context, the bytes correspond to the
* encrypted content of a message.
*
* @param encryptedContent
* @param iv
* @return The String corresponding to the decrypted bytes.
*
* @throws InvalidKeyException
* @throws NoSuchAlgorithmException
* @throws NoSuchPaddingException
* @throws InvalidAlgorithmParameterException
* @throws IllegalBlockSizeException
* @throws BadPaddingException
*/
private String bytesToStringContent(byte[] encryptedContent, IvParameterSpec iv)
throws InvalidKeyException, NoSuchAlgorithmException, NoSuchPaddingException,
InvalidAlgorithmParameterException, IllegalBlockSizeException, BadPaddingException {
return SQLiteEncryption.decryptString(SQLiteEncryption.encryptAlgorithm, encryptedContent, this.dbDataKey, iv);
}
/**
* Process the type of a message
*
* @param m
* @return The type of the message
*/
private String processMessageType(Message m) {
switch (m.getTypeMessage()) {
case TEXTE:
return "text";
case FICHIER:
return "file";
case IMAGE:
return "image";
default:
return "";
}
}
/**
* Process the extension of a message
*
* @param m
* @return The extension of the message. null if it is a simple text message.
*/
private String processExtension(Message m) {
if (m.getTypeMessage() == TypeMessage.TEXTE) {
return null;
} else {
MessageFichier mFile = (MessageFichier) m;
return mFile.getExtension();
}
}
// -------------- USER SECURITY RELATED METHODS -------------- //
/**
* Creates a new user in the database from a given username and password. The
* username is stored in plain text. An encrypted hash of the password is
* stored. The key used to encrypt the password's hash is itself encrypted then
* stored. Every other useful data to decrypt the key and compare the password's
* hash is stored as plaintext.
*
* Fail if a user with the given username already exists in the database.
*
* @param username
* @param password
*/
public void createNewUserEncrypt(String username, String password) {
String algo = SQLiteEncryption.encryptAlgorithm;
KeyGenerator keyGen = null;
try {
keyGen = KeyGenerator.getInstance("AES");
keyGen.init(256);
} catch (NoSuchAlgorithmException e) {
e.printStackTrace();
}
byte[] passwordSalt = SQLiteEncryption.getNextSalt();
byte[] dbDataKeySalt = SQLiteEncryption.getNextSalt();
SecretKey dbDataKey = keyGen.generateKey();
SecretKey dbDataEncryptKey = SQLiteEncryption.getKey(password.toCharArray(), dbDataKeySalt);
IvParameterSpec ivDbDataKey = SQLiteEncryption.generateIv();
byte[] passwordHash = SQLiteEncryption.hash(password.toCharArray(), passwordSalt);
byte[] dbDataKeyEncrypted = null;
byte[] encryptedPasswordHash = null;
try {
dbDataKeyEncrypted = SQLiteEncryption.encrypt(algo, SQLiteEncryption.keyToByte(dbDataKey), dbDataEncryptKey,
ivDbDataKey);
encryptedPasswordHash = SQLiteEncryption.encrypt(algo, passwordHash, dbDataKey, ivDbDataKey);
} catch (InvalidKeyException | NoSuchAlgorithmException | NoSuchPaddingException
| InvalidAlgorithmParameterException | IllegalBlockSizeException | BadPaddingException e) {
e.printStackTrace();
}
this.openConnection();
String createUserRequest = "INSERT INTO user(username, pwd_salt, db_datakey_salt, encrypted_pwd_hashsalt, encrypted_db_datakey, iv_datakey) "
+ "VALUES (?, ?, ?, ?, ?, ?); ";
PreparedStatement prepStmt = null;
try {
prepStmt = this.connec.prepareStatement(createUserRequest);
prepStmt.setString(1, username);
prepStmt.setBytes(2, passwordSalt);
prepStmt.setBytes(3, dbDataKeySalt);
prepStmt.setBytes(4, encryptedPasswordHash);
prepStmt.setBytes(5, dbDataKeyEncrypted);
prepStmt.setBytes(6, ivDbDataKey.getIV());
} catch (SQLException e) {
e.printStackTrace();
}
try {
prepStmt.executeUpdate();
System.out.println("Utilisateur crée");
} catch (SQLException e) {
System.out.println("Nom d'utilisateur déjà pris");
}
this.closeConnection();
}
/**
* Check if a given password has the same hash (= they're the same) as the one
* stored in the database for a given username.
*
* @param username
* @param password
* @return -1 if user do not exists, 0 if password is incorrect, 1 if password
* is correct
* @throws SQLException
*/
public int checkPwd(String username, char[] password) throws SQLException {
this.openConnection();
String selectUserDataRequest = "SELECT pwd_salt, db_datakey_salt, encrypted_pwd_hashsalt, encrypted_db_datakey, iv_datakey "
+ "FROM user " + "WHERE username = ?;";
PreparedStatement prepStmt;
prepStmt = this.connec.prepareStatement(selectUserDataRequest);
prepStmt.setString(1, username);
ResultSet res = prepStmt.executeQuery();
if (!res.next()) {
return -1;
}
byte[] passwordSalt = res.getBytes("pwd_salt");
if (passwordSalt == null) {
return 0;
}
byte[] dbDataKeySalt = res.getBytes("db_datakey_salt");
SecretKey dbDataEncryptKey = SQLiteEncryption.getKey(password, dbDataKeySalt);
byte[] ivBytes = res.getBytes("iv_datakey");
if (ivBytes == null) {
return 0;
}
IvParameterSpec iv = new IvParameterSpec(ivBytes);
byte[] encryptedDbDataKey = res.getBytes("encrypted_db_datakey");
SecretKey dbDataKey = null;
try {
dbDataKey = SQLiteEncryption.byteToKey(SQLiteEncryption.decryptByte(SQLiteEncryption.encryptAlgorithm,
encryptedDbDataKey, dbDataEncryptKey, iv));
} catch (InvalidKeyException | NoSuchAlgorithmException | NoSuchPaddingException
| InvalidAlgorithmParameterException | IllegalBlockSizeException | BadPaddingException e) {
}
byte[] encryptedPasswordHash = res.getBytes("encrypted_pwd_hashsalt");
byte[] passwordHash = SQLiteEncryption.hash(password, passwordSalt);
this.closeConnection();
boolean checkHash = this.checkHashPwd(passwordHash, encryptedPasswordHash, dbDataKey, iv);
if (checkHash) {
// Set the database key to be used in future encryptions if the given password is
// correct.
this.dbDataKey = dbDataKey;
return 1;
}
return 0;
}
/**
* Check if two given hash are the same once the second one has been decrypted
* with the given key and iv.
*
* @param passwordHash
* @param encryptedPasswordHash
* @param dbDataKey
* @param iv
* @return true if the first hash is equal to the second one once decrypted,
* false otherwise.
*
*/
private boolean checkHashPwd(byte[] passwordHash, byte[] encryptedPasswordHash, SecretKey dbDataKey,
IvParameterSpec iv) {
byte[] expectedHash = "".getBytes();
try {
expectedHash = SQLiteEncryption.decryptByte(SQLiteEncryption.encryptAlgorithm, encryptedPasswordHash,
dbDataKey, iv);
} catch (InvalidKeyException | NoSuchAlgorithmException | NoSuchPaddingException
| InvalidAlgorithmParameterException | IllegalBlockSizeException | BadPaddingException e) {
}
if (passwordHash.length != expectedHash.length)
return false;
for (int i = 0; i < passwordHash.length; i++) {
if (passwordHash[i] != expectedHash[i])
return false;
}
return true;
}
// Main to create 20 users in the database with the given number
public static void main(String[] args) {
String[] hardcodedNames = { "Olivia", "Liam", "Benjamin", "Sophia", "Charlotte", "Noah", "Elijah", "Isabella",
"Oliver", "Emma", "William", "Amelia", "Evelyn", "James", "Mia", "Ava", "Lucas", "Mason", "Ethan",
"Harper" };
String pwdPrefix = "aze1$";
SQLiteManager sqlManager = new SQLiteManager(0);
for (int i = 0; i < hardcodedNames.length; i++) {
sqlManager.createNewUserEncrypt(hardcodedNames[i] + i, pwdPrefix + hardcodedNames[i].charAt(0) + i);
}
}
}

37
POO/src/main/Main.java
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@ -1,37 +0,0 @@
package main;
import javax.swing.JPanel;
import javax.swing.UIManager;
import javax.swing.UIManager.LookAndFeelInfo;
import communication.filetransfer.FileTransferUtils;
import connexion.VueConnexion;
public class Main extends JPanel{
/**
*
*/
private static final long serialVersionUID = 1L;
public static void main(String[] args) {
try {
for (LookAndFeelInfo info : UIManager.getInstalledLookAndFeels()) {
if ("Nimbus".equals(info.getName())) {
UIManager.setLookAndFeel(info.getClassName());
break;
}
}
} catch (Exception e) {
// If Nimbus is not available, you can set the GUI to another look and feel.
}
FileTransferUtils.createDownloads();
new VueConnexion(Integer.parseInt(args[0]));
}
}

115
POO/src/main/Utilisateur.java
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@ -1,115 +0,0 @@
package main;
import java.io.Serializable;
import java.net.*;
public class Utilisateur implements Serializable{
private static final long serialVersionUID = 1L;
private String id;
private String pseudo;
private InetAddress ip;
private int port;
//Represents the user that is currently using the application
private static Utilisateur self;
/**
* Create and initialize an object representing an user
*
* @param id : user id as String
* @param pseudo : name under which other users can see this user as String
* @param ip : ip of the device this user is currently using as InetAddress
* @param port : on local mode, port used for the TCP listen socket as int
*
*/
public Utilisateur(String id, String pseudo, InetAddress ip, int port) throws UnknownHostException {
this.id = id;
this.pseudo = pseudo;
this.ip = ip;
this.port = port;
}
// ----- GETTERS ----- //
/**
* Returns user id as String
*
* @return user id as String
*/
public String getId() {
return id;
}
/**
* Returns user pseudo as String
*
* @return user pseudo as String
*/
public String getPseudo() {
return pseudo;
}
/**
* Returns user device's ip as String
*
* @return user device's ip as String
*/
public InetAddress getIp() {
return ip;
}
/**
* Returns the port the user uses for their TCP listen socket as int
*
* @return TCP listen socket port as int
*/
public int getPort() {
return port;
}
/**
* Returns the user currently using this instance of the application as Utilisateur
*
* @return current user as Utilisateur
*/
public static Utilisateur getSelf() {
return Utilisateur.self;
}
// ----- SETTERS ----- //
/**
* Change the pseudo used by an user
*
* @param pseudo : new pseudo as String
*/
public void setPseudo(String pseudo) {
this.pseudo = pseudo;
}
/**
* Sets the self static attribute with a new Utilisateur
*
* @param id : user id as String
* @param pseudo : name under which other users can see this user as String
* @param ip : ip of the device this user is currently using as InetAddress
* @param port : on local mode, port used for the TCP listen socket as int
*/
public static void setSelf(String id, String pseudo, String host, int port) throws UnknownHostException {
if(Utilisateur.self == null) {
Utilisateur.self = new Utilisateur(id, pseudo, InetAddress.getByName(host), port);
}
}
/**
* Sets the self static attribute with null
*/
public static void resetSelf() {
Utilisateur.self = null;
}
}

22
POO/src/main/Vue.java
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@ -1,22 +0,0 @@
package main;
import javax.swing.JFrame;
// General class from which all VueX class derivate
public class Vue extends JFrame{
private static final long serialVersionUID = 1L;
public Vue(String title) {
super(title);
this.setDefaultCloseOperation(EXIT_ON_CLOSE);
}
public void reduireAgent() {}
public void close() {
this.dispose();
}
}

8
POO/src/messages/MauvaisTypeMessageException.java
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@ -1,8 +0,0 @@
package messages;
public class MauvaisTypeMessageException extends Exception {
private static final long serialVersionUID = 1L;
}

130
POO/src/messages/Message.java
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@ -1,130 +0,0 @@
package messages;
import java.io.Serializable;
import java.time.LocalDateTime;
import java.time.format.DateTimeFormatter;
public abstract class Message implements Serializable {
public enum TypeMessage {JE_SUIS_CONNECTE, JE_SUIS_DECONNECTE, INFO_PSEUDO, TEXTE, IMAGE, FICHIER, FICHIER_INIT, FICHIER_ANSWER}
protected TypeMessage type;
private String dateMessage;
private String sender;
private static final long serialVersionUID = 1L;
// ------- GETTERS ------ //
/**
* Returns the current date and time as a string using DateTimeFormatter and LocalDateTime
*
* @return date and time as a String
*/
public static String getDateAndTime() {
DateTimeFormatter dtf = DateTimeFormatter.ofPattern("yyyy/MM/dd HH:mm:ss");
LocalDateTime now = LocalDateTime.now();
return dtf.format(now);
}
/**
* Returns the type of the message
*
* @return message type as TypeMessage
*/
public TypeMessage getTypeMessage() {
return this.type;
}
/**
* Returns the date and time to which the message was timestamped
*
* @return date and time of timestamp as String
*/
public String getDateMessage() {
return this.dateMessage;
}
/**
* Returns the sender of the message (used in the database)
*
* @return sender of message as String
*/
public String getSender() {
return this.sender ;
}
// ------ SETTERS ------ //
/**
* Set the date of the message to a specific timestamp
*
* @param timestamp as (formatted) String
*/
public void setDateMessage(String dateMessage) {
this.dateMessage = dateMessage;
}
/**
* Set the sender of the message to a specified string
*
* @param sender pseudo as String
*/
public void setSender(String sender) {
this.sender = sender;
}
// ----- MESSAGE-STRING CONVERSION METHODS -------//
/**
* Returns a string representing the formatted list of attributes
*
*@return attributes as a String
*/
protected abstract String attributsToString();
/**
* Returns the message as a formatted string
*
*@return message as a String
*/
public String toString() {
return this.type+"###"+this.attributsToString();
}
/**
* Static method. Returns a message obtainer by parsing a given string
*
*@param String representing a message
*@return Message
*/
public static Message stringToMessage(String messageString) {
try {
String[] parts = messageString.split("###");
switch (parts[0]) {
case "JE_SUIS_CONNECTE" :
return new MessageSysteme(TypeMessage.JE_SUIS_CONNECTE);
case "JE_SUIS_DECONNECTE" :
return new MessageSysteme(TypeMessage.JE_SUIS_DECONNECTE, parts[1], parts[2], Integer.parseInt(parts[3]) );
case "INFO_PSEUDO" :
return new MessageSysteme(TypeMessage.INFO_PSEUDO, parts[1], parts[2], Integer.parseInt(parts[3]) );
case "TEXTE" :
return new MessageTexte(TypeMessage.TEXTE, parts[1]);
case "IMAGE" :
return new MessageFichier(TypeMessage.IMAGE, parts[1], parts[2]);
case "FICHIER" :
return new MessageFichier(TypeMessage.FICHIER, parts[1], parts[2]);
}
} catch (MauvaisTypeMessageException e) {}
return null;
}
}

82
POO/src/messages/MessageFichier.java
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@ -1,82 +0,0 @@
package messages;
public class MessageFichier extends Message {
private static final long serialVersionUID = 1L;
private String contenu;
private String extension;
/**
* Create a file message. These message are used for all interactions regarding file transfer.
*
* The "FICHIER_INIT" messages are used to inform the recipient application that you wish to transfer them files.
* The "FICHIER_ANSWER" messages are answers to "FICHIER_INIT" messages. They indicate that you are ready to receive the file.
* The "contenu" argument then contains the port on which you wish to receive the files.
*
* The "FICHIER" messages contains the files themselves.
* The "IMAGE" messages contains images files, which means the application will display a thumbnail for the image to the recipient.
*
* @param TypeMessage type (must be FICHIER_INIT, FICHIER_ANSWER, FICHIER or IMAGE, else an error is raised)
* @param contenu : message content as String
* @param extension : file extension as string
*
* @throws MauvaisTypeMessageException
*/
public MessageFichier(TypeMessage type, String contenu, String extension) throws MauvaisTypeMessageException{
if ((type==TypeMessage.IMAGE)||(type==TypeMessage.FICHIER) ||(type==TypeMessage.FICHIER_INIT) || (type==TypeMessage.FICHIER_ANSWER) ) {
this.type=type;
this.contenu=contenu;
this.extension=extension;
this.setDateMessage(Message.getDateAndTime());
}
else throw new MauvaisTypeMessageException();
}
// ----- GETTERS ----- //
/**
* Returns content of the message
*
* @return content as String
*/
public String getContenu() {
return this.contenu;
}
/**
* Returns extension of the file contained in the message (if the message contains a file)
*
* @return extension as String
*/
public String getExtension() {
return this.extension;
}
// ----- MESSAGE-STRING CONVERSION METHODS -------//
/**
* Implements attributsToString method of Message
*
* @return attributes as a String
*/
@Override
protected String attributsToString() {
return this.contenu+"###"+this.extension;
}
public String toString() {
if(this.type == TypeMessage.IMAGE) {
return this.contenu;
}else {
String suffixe;
if(this.getSender().equals("Moi")) {
suffixe = "envoyé\n";
}else {
suffixe = "reçu\n";
}
return "<"+this.getDateMessage()+"> : "+this.contenu+" "+suffixe;
}
}
}

97
POO/src/messages/MessageSysteme.java
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@ -1,97 +0,0 @@
package messages;
public class MessageSysteme extends Message {
private static final long serialVersionUID = 1L;
private String pseudo;
private String id;
private int port;
// ------ CONSTRUCTORS ------ //
/**
* Create a system message. These message are used for all system interactions by the UDP channel.
* The "JE_SUIS_CONNECTE" messages are used to inform the network that you just joined.
* They are sent directly after an user log in, and await multiple "INFO_PSEUDO" messages as answers, to build the table of users logged in.
*
* @param TypeMessage type (must be JE_SUIS_CONNECTE, else an error is raised)
* @throws MauvaisTypeMessageException
*/
public MessageSysteme(TypeMessage type) throws MauvaisTypeMessageException{
if (type==TypeMessage.JE_SUIS_CONNECTE) {
this.type=type;
this.pseudo="";
this.id="";
this.port = -1;
}
else throw new MauvaisTypeMessageException();
}
/**
* Create a system message. These message are used for all system interactions by the UDP channel.
* The "JE_SUIS_DECONNECTE" messages are used to inform the network that you just quit it.
*
* The "INFO_PSEUDO" are used to give informations about you to another user, much like an business card.
* They are used either as an answer to a "JE_SUIS_CONNECTE" message or to inform the network of a change of pseudo.
*
* @param TypeMessage type (must be JE_SUIS_DECONNECTE or INFO_PSEUDO, else an error is raised)
* @param pseudo : user pseudo as String
* @param id : user id as String
* @param port : "server" UDP port used by the application (used when the application id in local mode)
*
* @throws MauvaisTypeMessageException
*/
public MessageSysteme(TypeMessage type, String pseudo, String id, int port) throws MauvaisTypeMessageException {
if (type==TypeMessage.INFO_PSEUDO ||(type==TypeMessage.JE_SUIS_DECONNECTE)) {
this.type=type;
this.pseudo=pseudo;
this.id=id;
this.port = port;
}
else throw new MauvaisTypeMessageException();
}
// ----- GETTERS ----- //
/**
* Returns pseudo of the sender of the message (when type == INFO_PSEUDO)
*
* @return user pseudo as String
*/
public String getPseudo() {
return this.pseudo;
}
/**
* Returns id of the sender of the message (when type == INFO_PSEUDO)
*
* @return user id as String
*/
public String getId() {
return this.id;
}
/**
* Returns the "server" UDP port used by the sender of the message
*
* @return port as integer
*/
public int getPort() {
return this.port;
}
// ----- MESSAGE-STRING CONVERSION METHODS -------//
/**
* Implements attributsToString method of Message
*
* @return attributes as a String
*/
@Override
protected String attributsToString() {
return this.pseudo+"###"+this.id+"###"+this.port;
}
}

55
POO/src/messages/MessageTexte.java
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@ -1,55 +0,0 @@
package messages;
public class MessageTexte extends Message {
private static final long serialVersionUID = 1L;
private String contenu;
/**
* Create a text message. These message are used for basic text conversation via TCP.
*
* @param TypeMessage type (must be TEXT, else an error is raised)
* @param contenu : message content as String
*
* @throws MauvaisTypeMessageException
*/
public MessageTexte(TypeMessage type, String contenu) throws MauvaisTypeMessageException{
if (type==TypeMessage.TEXTE) {
this.type=type;
this.contenu=contenu;
this.setDateMessage(Message.getDateAndTime());
}
else throw new MauvaisTypeMessageException();
}
// ----- GETTERS ----- //
/**
* Returns content of the message
*
* @return content as String
*/
public String getContenu() {
return this.contenu;
}
// ----- MESSAGE-STRING CONVERSION METHODS -------//
/**
* Implements attributsToString method of Message
*
* @return attributes as a String
*/
@Override
protected String attributsToString() {
return this.contenu;
}
@Override
public String toString() {
return "<"+this.getDateMessage()+"> "+this.getSender()+" : "+this.contenu+"\n";
}
}

12
POO/src/observers/ObserverInputMessage.java
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@ -1,12 +0,0 @@
package observers;
public interface ObserverInputMessage {
/**
* Method called when data is received from a TCP socket
*
* @param o : The observer to notify
* @param arg : An object
*/
public void updateInput(Object o, Object arg);
}

13
POO/src/observers/ObserverSocketState.java
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@ -1,13 +0,0 @@
package observers;
public interface ObserverSocketState {
/**
* Method called when a TCP socket is closed/a communication is broken
*
* @param o : The observer to notify
* @param arg : An object
*/
public void updateSocketState(Object o, Object arg);
}

17
POO/src/observers/ObserverUserList.java
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@ -1,17 +0,0 @@
package observers;
import java.util.ArrayList;
import main.Utilisateur;
public interface ObserverUserList {
/**
* Method called when the userlist is updated
*
* @param o : The observer to notify
* @param userList : The userlist
*/
public void updateList(Object o, ArrayList<Utilisateur> userList);
}

352
POO/src/session/ControleurSession.java
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@ -1,352 +0,0 @@
package session;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
import java.io.File;
import java.io.IOException;
import java.net.Socket;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.Collections;
import javax.swing.JButton;
import javax.swing.JFileChooser;
import communication.filetransfer.FileTransferClient;
import communication.filetransfer.FileTransferServer;
import communication.tcp.TCPClient;
import database.SQLiteManager;
import main.Utilisateur;
import messages.MauvaisTypeMessageException;
import messages.Message;
import messages.MessageFichier;
import messages.MessageTexte;
import messages.Message.TypeMessage;
import observers.ObserverInputMessage;
import observers.ObserverSocketState;
public class ControleurSession implements ActionListener, ObserverInputMessage, ObserverSocketState, KeyListener {
private VueSession vue;
private String idOther;
private String pseudoOther;
private TCPClient tcpClient;
private ArrayList<Message> messagesIn;
private ArrayList<Message> messagesOut;
private SQLiteManager sqlManager;
private ArrayList<File> files;
/**
* Create the controller for this session. It will manage all the objects used
* to send/receive messages and files as well as the ones interacting with the
* database. It will handle the actions performed on the view and call the
* appropriate methods to display messages and data on the view.
*
* @param vue The corresponding view
* @param socketComm The socket used to send/receive messages
* @param idOther The other user's id
* @param pseudoOther The other user's pseudo
* @param sqlManager The SQLManager instance to retrieve/insert
* users,conversations,messages from/into the database
* @throws IOException
*/
protected ControleurSession(VueSession vue, Socket socketComm, String idOther, String pseudoOther,
SQLiteManager sqlManager) throws IOException {
this.vue = vue;
this.tcpClient = new TCPClient(socketComm);
this.tcpClient.setObserverInputThread(this);
this.tcpClient.setObserverSocketState(this);
this.tcpClient.startInputThread();
this.messagesIn = new ArrayList<Message>();
this.messagesOut = new ArrayList<Message>();
this.idOther = idOther;
this.pseudoOther = pseudoOther;
this.sqlManager = sqlManager;
this.files = new ArrayList<File>();
}
// ---------- ACTION LISTENER OPERATIONS ---------- //
@Override
public void actionPerformed(ActionEvent e) {
// If the button "Envoyer" is pressed
if ((JButton) e.getSource() == this.vue.getButtonEnvoyer()) {
String messageContent = this.vue.getInputedText();
System.out.println(messageContent);
if (!this.files.isEmpty()) {
this.processSelectedFiles(messageContent);
if (!this.files.isEmpty()) {
this.askFileTransfer();
this.vue.resetZoneSaisie();
messageContent = "";
}
}
// If the text field is not empty
if (!messageContent.equals("")) {
// Retrieve the date and prepare the messages to send/display
MessageTexte messageOut = null;
try {
messageOut = new MessageTexte(TypeMessage.TEXTE, messageContent);
messageOut.setSender(Utilisateur.getSelf().getPseudo());
} catch (MauvaisTypeMessageException e2) {
e2.printStackTrace();
}
try {
this.tcpClient.sendMessage(messageOut);
} catch (IOException e1) {
e1.printStackTrace();
}
messageOut.setSender("Moi");
this.vue.appendMessage(messageOut);
this.vue.resetZoneSaisie();
this.messagesOut.add(messageOut);
}
}
// If the button "Importer" is pressed
if ((JButton) e.getSource() == this.vue.getButtonImportFile()) {
// Display a file chooser to select one or several files
JFileChooser fc = new JFileChooser();
fc.setMultiSelectionEnabled(true);
int returVal = fc.showDialog(this.vue, "Importer");
// If the user clicked on "Importer",
// Retrieve all the files he clicked on.
// The files are stored in this.files
// and their names are display in the ChatInput.
if (returVal == JFileChooser.APPROVE_OPTION) {
File[] files = fc.getSelectedFiles();
Collections.addAll(this.files, files);
for (File file : files) {
this.vue.appendInputedText(file.getName());
this.vue.appendInputedText(";");
}
}
}
}
// ---------- KEY LISTENER METHODS ---------- //
@Override
public void keyTyped(KeyEvent e) {
}
@Override
public void keyPressed(KeyEvent e) {
if (e.getKeyCode() == KeyEvent.VK_ENTER) {
if (!e.isShiftDown()) {
this.vue.getButtonEnvoyer().doClick();
}
}
}
@Override
public void keyReleased(KeyEvent e) {
}
// ---------- OTHERS ---------- //
/**
* Create and send the message to ask for a file transfer.
*/
private void askFileTransfer() {
try {
MessageFichier messageOut = new MessageFichier(TypeMessage.FICHIER_INIT, "" + this.files.size(), "");
this.tcpClient.sendMessage(messageOut);
} catch (MauvaisTypeMessageException | IOException e1) {
e1.printStackTrace();
}
}
/**
* Create and send the answer with the port on which the FileTransferServer is
* listening.
*
* @param port
*/
private void answerFileTransfer(int port) {
try {
MessageFichier messageOut = new MessageFichier(TypeMessage.FICHIER_ANSWER, "" + port, "");
this.tcpClient.sendMessage(messageOut);
} catch (MauvaisTypeMessageException | IOException e1) {
e1.printStackTrace();
}
}
/**
* Retrieve the files' names from the given input using ";" as a separator
* Removes the files whose names are missing.
*
* This method is used to check if a file's name has been deleted/overwritten in
* the ChatInput. Indeed, the only way to cancel the import of a file is by
* deleting its name from the ChatInput.
*
* @param input
*/
private void processSelectedFiles(String input) {
String[] tmp = input.split(";");
ArrayList<String> potentialFiles = new ArrayList<String>();
Collections.addAll(potentialFiles, tmp);
for (File file : this.files) {
if (!potentialFiles.contains(file.getName())) {
this.files.remove(file);
}
}
}
/**
* Retrieve the messages previously exchanged between the current user of the
* application and the other user of this session
*
* @return The ArrayList of all previous messages
*/
protected ArrayList<Message> getHistorique() {
try {
ArrayList<Message> historique = this.sqlManager.getMessageRecord(idOther, pseudoOther);
return historique;
} catch (SQLException e) {
e.printStackTrace();
return new ArrayList<Message>();
}
}
/**
* Method used when the session is over. Insert every message exchanged in the
* database, set all attributes' references to null, and call destroyAll() on
* the TCPClient.
*/
protected void destroyAll() {
String idSelf = Utilisateur.getSelf().getId();
String idOther = this.idOther;
try {
this.sqlManager.insertAllMessages(messagesOut, idSelf, idOther);
this.sqlManager.insertAllMessages(messagesIn, idOther, idSelf);
} catch (SQLException e) {
e.printStackTrace();
}
this.vue = null;
this.tcpClient.destroyAll();
this.tcpClient = null;
}
// ---------- OBSERVERS ---------- //
// Method called when a message is received from the TCP socket
@Override
public void updateInput(Object o, Object arg) {
Message message = (Message) arg;
switch (message.getTypeMessage()) {
// If it is a simple text message, display it
case TEXTE:
System.out.println(message.toString());
this.vue.appendMessage(message);
this.messagesIn.add(message);
break;
// If it is an image, display a thumbnail
case IMAGE:
this.vue.appendImage(message);
if (message.getSender().equals("Moi")) {
this.messagesOut.add(message);
} else {
this.messagesIn.add(message);
}
break;
// If it is a file, display a message saying whether it has been sent/received.
case FICHIER:
this.vue.appendMessage(message);
if (message.getSender().equals("Moi")) {
this.messagesOut.add(message);
} else {
this.messagesIn.add(message);
}
break;
// If it is a demand for a file transfer, create a new FileTransferServer, start
// it
// and answer back with "FICHIER_ANSWER" message containing the port of the
// server.
case FICHIER_INIT:
try {
MessageFichier mFichier = (MessageFichier) arg;
int nbFile = Integer.parseInt(mFichier.getContenu());
FileTransferServer fts = new FileTransferServer(nbFile, this);
int port = fts.getPort();
fts.start();
this.answerFileTransfer(port);
} catch (IOException e) {
e.printStackTrace();
}
break;
// If it is an answer for a file transfer, create a FilteTransferClient
// with the port received and the path of the file(s) to send,
// and send the files.
case FICHIER_ANSWER:
try {
MessageFichier mFichier = (MessageFichier) arg;
int port = Integer.parseInt(mFichier.getContenu());
@SuppressWarnings("unchecked")
FileTransferClient ftc = new FileTransferClient(port, (ArrayList<File>) this.files.clone(), this);
ftc.sendFiles();
this.files.clear();
} catch (IOException | InterruptedException e) {
e.printStackTrace();
}
break;
// Do nothing
default:
}
}
// If the other user closes the session or the communication is broken
// Disable the view (TextArea, Buttons..) and display a message
@Override
public void updateSocketState(Object o, Object arg) {
this.vue.endSession(this.pseudoOther);
}
}

317
POO/src/session/VueSession.java
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@ -1,317 +0,0 @@
package session;
import java.awt.*;
import java.awt.event.KeyEvent;
import java.awt.image.BufferedImage;
import java.io.IOException;
import java.net.Socket;
import java.util.ArrayList;
import javax.swing.Icon;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
import javax.swing.JTextPane;
import javax.swing.KeyStroke;
import javax.swing.ScrollPaneConstants;
import javax.swing.border.EmptyBorder;
import javax.swing.text.AbstractDocument;
import javax.swing.text.BadLocationException;
import javax.swing.text.BoxView;
import javax.swing.text.ComponentView;
import javax.swing.text.Document;
import javax.swing.text.Element;
import javax.swing.text.IconView;
import javax.swing.text.LabelView;
import javax.swing.text.ParagraphView;
import javax.swing.text.StyleConstants;
import javax.swing.text.StyledDocument;
import javax.swing.text.StyledEditorKit;
import javax.swing.text.View;
import javax.swing.text.ViewFactory;
import communication.filetransfer.FileTransferUtils;
import database.SQLiteManager;
import messages.Message;
import messages.Message.TypeMessage;
public class VueSession extends JPanel {
private static final long serialVersionUID = 1L;
private JButton sendMessage;
private JButton importFile;
private JTextPane chatWindow;
private JTextArea chatInput;
private ControleurSession c;
public VueSession(Socket socketComm, String idOther, String pseudoOther, SQLiteManager sqlManager)
throws IOException {
this.c = new ControleurSession(this, socketComm, idOther, pseudoOther, sqlManager);
this.setBorder(new EmptyBorder(5, 5, 5, 5));
this.setLayout(new BorderLayout(0, 0));
// Create the display zone
this.chatWindow = new JTextPane();
this.chatWindow.setEditable(false);
this.chatWindow.setEditorKit(new WrapEditorKit());
JScrollPane chatScroll = new JScrollPane(this.chatWindow);
chatScroll.setVerticalScrollBarPolicy(ScrollPaneConstants.VERTICAL_SCROLLBAR_AS_NEEDED);
// Create the input zone
this.chatInput = new JTextArea();
this.chatInput.setColumns(10);
this.chatInput.setLineWrap(true);
this.chatInput.setWrapStyleWord(true);
this.chatInput.addKeyListener(this.c);
JPanel bottom = new JPanel();
bottom.setLayout(new BorderLayout(0, 0));
// Remap "ENTER" to "none" to avoid "\n" in the input area when pressing "ENTER"
// to send a message
KeyStroke enter = KeyStroke.getKeyStroke("ENTER");
this.chatInput.getInputMap().put(enter, "none");
KeyStroke shiftEnter = KeyStroke.getKeyStroke(KeyEvent.VK_ENTER, KeyEvent.SHIFT_DOWN_MASK);
this.chatInput.getInputMap().put(shiftEnter, "insert-break");
// Create a scroller to be able to send messages of several lines
JScrollPane inputScroll = new JScrollPane(this.chatInput);
inputScroll.setHorizontalScrollBarPolicy(ScrollPaneConstants.HORIZONTAL_SCROLLBAR_NEVER);
// Import file button
this.importFile = new JButton("Importer..");
this.importFile.addActionListener(this.c);
// Send message button
this.sendMessage = new JButton("Envoyer");
this.sendMessage.addActionListener(this.c);
bottom.add(this.importFile, BorderLayout.WEST);
bottom.add(inputScroll, BorderLayout.CENTER);
bottom.add(this.sendMessage, BorderLayout.EAST);
// Add the components to the view
this.add(chatScroll, BorderLayout.CENTER);
this.add(bottom, BorderLayout.SOUTH);
this.setPreferredSize(new Dimension(500, 500));
this.displayHistorique();
}
// -------------- GETTERS -------------- //
protected JButton getButtonEnvoyer() {
return this.sendMessage;
}
protected JButton getButtonImportFile() {
return this.importFile;
}
protected String getInputedText() {
return this.chatInput.getText();
}
// -------------- DISPLAY METHODS -------------- //
/**
* Append the given string to the ChatWindow.
*
* @param str
*/
protected void appendString(String str) {
try {
Document doc = this.chatWindow.getDocument();
doc.insertString(doc.getLength(), str, null);
} catch (BadLocationException e) {
e.printStackTrace();
}
}
/**
* Append the given Message to the ChatWindow.
*
* @param message
*/
protected void appendMessage(Message message) {
try {
StyledDocument sdoc = this.chatWindow.getStyledDocument();
sdoc.insertString(sdoc.getLength(), message.toString(), null);
} catch (BadLocationException e) {
e.printStackTrace();
}
}
/**
* Append an icon with the image contained in the given message. The message has
* to contain the base64 encoded bytes of the image as a String for it to be
* decoded and displayed.
*
* @param message
*/
protected void appendImage(Message message) {
this.setCaretToEnd();
String imgString = message.toString();
Icon ic;
try {
BufferedImage img = FileTransferUtils.decodeImage(imgString);
ic = new ImageIcon(img);
this.chatWindow.insertIcon(ic);
this.appendString("\n");
} catch (IOException e) {
e.printStackTrace();
}
}
private void printLineSeparator() {
this.appendString("------------------------------------------\n");
}
/**
* Append the given string to the ChatInput.
*
* @param str
*/
protected void appendInputedText(String str) {
this.chatInput.append(str);
}
protected void resetZoneSaisie() {
this.chatInput.setText("");
}
// -------------- OTHERS -------------- //
private void setCaretToEnd() {
this.chatWindow.setCaretPosition(this.chatWindow.getDocument().getLength());
}
/**
* Retrieve all the previous messages from the controller and display them by
* appending them one by one to the ChatWindow.
*/
private void displayHistorique() {
ArrayList<Message> historique = this.c.getHistorique();
for (Message m : historique) {
if (m.getTypeMessage() == TypeMessage.IMAGE) {
this.appendImage(m);
} else {
this.appendMessage(m);
}
}
if (historique.size() > 0) {
this.printLineSeparator();
}
}
/**
* Disable the ChatInput, the buttons "Importer" and "Envoyer" and display a
* message indicating the other user ended the session.
*
* @param pseudoOther
*/
protected void endSession(String pseudoOther) {
this.printLineSeparator();
this.appendString(pseudoOther + " a mis fin à la session.");
this.chatInput.setEnabled(false);
this.chatInput.setFocusable(false);
this.sendMessage.setEnabled(false);
this.importFile.setEnabled(false);
}
/**
* Method used when the user closes the session. Set all attributes' references
* to null, and call destroyAll() on the controller.
*/
public void destroyAll() {
if (this.c != null) {
this.c.destroyAll();
}
this.c = null;
this.chatInput = null;
this.chatWindow = null;
this.sendMessage = null;
}
// ------------- PRIVATE CLASS TO WRAP TEXT -------------//
class WrapEditorKit extends StyledEditorKit {
private static final long serialVersionUID = 1L;
ViewFactory defaultFactory = new WrapColumnFactory();
public ViewFactory getViewFactory() {
return defaultFactory;
}
}
class WrapColumnFactory implements ViewFactory {
public View create(Element elem) {
String kind = elem.getName();
if (kind != null) {
if (kind.equals(AbstractDocument.ContentElementName)) {
return new WrapLabelView(elem);
} else if (kind.equals(AbstractDocument.ParagraphElementName)) {
return new ParagraphView(elem);
} else if (kind.equals(AbstractDocument.SectionElementName)) {
return new BoxView(elem, View.Y_AXIS);
} else if (kind.equals(StyleConstants.ComponentElementName)) {
return new ComponentView(elem);
} else if (kind.equals(StyleConstants.IconElementName)) {
return new IconView(elem);
}
}
// default to text display
return new LabelView(elem);
}
}
class WrapLabelView extends LabelView {
public WrapLabelView(Element elem) {
super(elem);
}
public float getMinimumSpan(int axis) {
switch (axis) {
case View.X_AXIS:
return 0;
case View.Y_AXIS:
return super.getMinimumSpan(axis);
default:
throw new IllegalArgumentException("Invalid axis: " + axis);
}
}
}
}

326
POO/src/standard/ControleurStandard.java
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@ -1,326 +0,0 @@
package standard;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowEvent;
import java.awt.event.WindowListener;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.InetAddress;
import java.net.Socket;
import java.net.UnknownHostException;
import java.util.ArrayList;
import javax.swing.JButton;
import javax.swing.JList;
import javax.swing.WindowConstants;
import javax.swing.event.ListSelectionEvent;
import javax.swing.event.ListSelectionListener;
import communication.tcp.TCPServer;
import communication.udp.CommunicationUDP;
import connexion.VueConnexion;
import database.SQLiteManager;
import main.Utilisateur;
import observers.ObserverInputMessage;
import observers.ObserverSocketState;
import observers.ObserverUserList;
import session.VueSession;
public class ControleurStandard implements ActionListener, ListSelectionListener, WindowListener, ObserverInputMessage,
ObserverUserList, ObserverSocketState {
private enum ModifPseudo {
TERMINE, EN_COURS
}
private ModifPseudo modifPseudo;
private VueStandard vue;
private CommunicationUDP commUDP;
private String lastPseudo;
private TCPServer tcpServ;
private ArrayList<String> idsSessionEnCours;
private SQLiteManager sqlManager;
private VueConnexion vueConnexion;
public ControleurStandard(VueStandard vue, CommunicationUDP commUDP, int portServerTCP, SQLiteManager sqlManager,
VueConnexion vueConnexion) throws IOException {
this.vue = vue;
this.vue.setDefaultCloseOperation(WindowConstants.DO_NOTHING_ON_CLOSE);
this.vueConnexion = vueConnexion;
this.tcpServ = new TCPServer(portServerTCP);
this.tcpServ.addObserver(this);
this.tcpServ.start();
this.commUDP = commUDP;
this.idsSessionEnCours = new ArrayList<String>();
this.sqlManager = sqlManager;
}
// ---------- LISTSELECTION LISTENER OPERATIONS ----------//
@Override
public void valueChanged(ListSelectionEvent e) {
// Case when a list element is selected
if (this.vue.getActiveUsersList().isFocusOwner() && !e.getValueIsAdjusting()
&& this.vue.getActiveUsersList().getSelectedValue() != null) {
JList<String> list = this.vue.getActiveUsersList();
String pseudoOther = list.getSelectedValue();
Utilisateur other = this.commUDP.getUserFromPseudo(pseudoOther);
String idOther = other.getId();
// Check if we are already asking for a session/chatting with the person
// selected
// null condition because the list.clearSelection() generates an event
if (!this.idsSessionEnCours.contains(idOther)) {
int choix = this.vue.displayJOptionSessionCreation(pseudoOther);
System.out.println("choix : " + choix);
if (choix == 0) {
int port = other.getPort();
System.out.println("port = " + port);
try {
Socket socketComm = new Socket(InetAddress.getLocalHost(), port);
this.sendMessage(socketComm, Utilisateur.getSelf().getPseudo());
String reponse = this.readMessage(socketComm);
System.out.println("reponse : " + reponse);
if (reponse.equals("accepted")) {
this.idsSessionEnCours.add(idOther);
VueSession session = new VueSession(socketComm, idOther, pseudoOther, this.sqlManager);
this.vue.addSession(pseudoOther, session);
this.vue.displayJOptionResponse("acceptee");
} else {
this.vue.displayJOptionResponse("refusee");
socketComm.close();
System.out.println("refused");
}
} catch (IOException e1) {
vue.displayJOptionResponse("refusee");
}
}
}
list.clearSelection();
System.out.println("pseudo de la personne a atteindre : " + pseudoOther);
}
}
// ---------- ACTION LISTENER OPERATIONS ----------//
@Override
public void actionPerformed(ActionEvent e) {
// Cas Modifier Pseudo
if ((JButton) e.getSource() == this.vue.getButtonModifierPseudo()) {
JButton modifierPseudo = (JButton) e.getSource();
if (this.modifPseudo == ModifPseudo.TERMINE) {
this.lastPseudo = Utilisateur.getSelf().getPseudo();
modifierPseudo.setText("OK");
this.modifPseudo = ModifPseudo.EN_COURS;
} else {
if (this.vue.getDisplayedPseudo().length() >= 1
&& !this.commUDP.containsUserFromPseudo(this.vue.getDisplayedPseudo().toLowerCase())) {
Utilisateur.getSelf().setPseudo(this.vue.getDisplayedPseudo());
try {
this.commUDP.sendMessageInfoPseudo();
} catch (IOException e1) {
e1.printStackTrace();
}
} else {
this.vue.setDisplayedPseudo(this.lastPseudo);
}
modifierPseudo.setText("Modifier");
this.modifPseudo = ModifPseudo.TERMINE;
}
this.vue.toggleEditPseudo();
}
// Cas deconnexion
else if ((JButton) e.getSource() == this.vue.getButtonDeconnexion()) {
try {
this.setVueConnexion();
} catch (IOException e1) {
e1.printStackTrace();
}
}
else if (this.vue.isButtonTab(e.getSource())) {
JButton button = (JButton) e.getSource();
int index = this.vue.removeSession(button);
this.idsSessionEnCours.remove(index);
}
}
// ---------- WINDOW LISTENER OPERATIONS ----------//
@Override
public void windowClosing(WindowEvent e) {
try {
this.setVueConnexion();
} catch (IOException e1) {
e1.printStackTrace();
}
}
@Override
public void windowOpened(WindowEvent e) {
// TODO Auto-generated method stub
}
@Override
public void windowClosed(WindowEvent e) {
}
@Override
public void windowIconified(WindowEvent e) {
// TODO Auto-generated method stub
}
@Override
public void windowDeiconified(WindowEvent e) {
// TODO Auto-generated method stub
}
@Override
public void windowActivated(WindowEvent e) {
// TODO Auto-generated method stub
}
@Override
public void windowDeactivated(WindowEvent e) {
// TODO Auto-generated method stub
}
// ------------SOCKET-------------//
private void sendMessage(Socket sock, String message) throws IOException {
PrintWriter output = new PrintWriter(sock.getOutputStream(), true);
output.println(message);
}
private String readMessage(Socket sock) throws IOException {
BufferedReader input = new BufferedReader(new InputStreamReader(sock.getInputStream()));
return input.readLine();
}
// ------------OBSERVERS------------- //
@Override
public void updateInput(Object o, Object arg) {
if (o == this.tcpServ) {
Socket sockAccept = (Socket) arg;
try {
String pseudoOther = this.readMessage(sockAccept);
String idOther = this.commUDP.getUserFromPseudo(pseudoOther).getId();
int reponse;
if (!this.idsSessionEnCours.contains(idOther)) {
reponse = this.vue.displayJOptionAskForSession(pseudoOther);
System.out.println("reponse : " + reponse);
} else {
reponse = 1;
}
if (reponse == 0) {
this.idsSessionEnCours.add(idOther);
this.sendMessage(sockAccept, "accepted");
VueSession session = new VueSession(sockAccept, idOther, pseudoOther, this.sqlManager);
this.vue.addSession(pseudoOther, session);
} else {
this.sendMessage(sockAccept, "refused");
sockAccept.close();
}
} catch (IOException e) {
e.printStackTrace();
}
}
}
@Override
public void updateList(Object o, ArrayList<Utilisateur> userList) {
if (o == this.commUDP) {
ArrayList<String> pseudos = new ArrayList<String>();
for (Utilisateur u : userList) {
pseudos.add(u.getPseudo());
}
this.vue.setActiveUsersList(pseudos);
}
}
@Override
public void updateSocketState(Object o, Object arg) {
VueSession session = (VueSession) arg;
int index = this.vue.removeSession(session);
this.idsSessionEnCours.remove(index);
}
private void setVueConnexion() throws UnknownHostException, IOException {
this.commUDP.sendMessageDelete();
this.commUDP.removeAllUsers();
this.vue.removeAllUsers();
this.vue.closeAllSession();
this.idsSessionEnCours.clear();
Utilisateur.resetSelf();
this.commUDP.setObserver(null);
this.vue.setVisible(false);
this.vueConnexion.setVisible(true);
}
protected void init() throws UnknownHostException, IOException {
this.commUDP.setObserver(this);
this.commUDP.sendMessageConnecte();
this.commUDP.sendMessageInfoPseudo();
this.modifPseudo = ModifPseudo.TERMINE;
}
}

373
POO/src/standard/VueStandard.java
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@ -1,373 +0,0 @@
package standard;
import java.awt.*;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import java.io.IOException;
import java.net.UnknownHostException;
import java.util.ArrayList;
import java.util.Iterator;
import javax.swing.AbstractButton;
import javax.swing.BorderFactory;
import javax.swing.DefaultListModel;
import javax.swing.JButton;
import javax.swing.JLabel;
import javax.swing.JList;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTabbedPane;
import javax.swing.JTextField;
import javax.swing.ListSelectionModel;
import javax.swing.ScrollPaneConstants;
import javax.swing.plaf.basic.BasicButtonUI;
import communication.udp.CommunicationUDP;
import connexion.VueConnexion;
import database.SQLiteManager;
import main.Utilisateur;
import main.Vue;
import session.VueSession;
public class VueStandard extends Vue {
/**
*
*/
private static final long serialVersionUID = 1L;
private JList<String> activeUsersList;
private JTextField pseudoSelf;
private JTabbedPane zoneSessions;
private JButton modifierPseudo;
private JButton seConnecter;
private JButton seDeconnecter;
private ControleurStandard c;
private ArrayList<JButton> tabButtons;
private ArrayList<VueSession> sessions;
private DefaultListModel<String> userList = new DefaultListModel<String>();
public VueStandard(String title, CommunicationUDP commUDP, int portServerTCP, SQLiteManager sqlManager, VueConnexion vueConnexion) throws IOException {
super(title);
this.tabButtons = new ArrayList<JButton>();
this.sessions = new ArrayList<VueSession>();
this.c = new ControleurStandard(this, commUDP, portServerTCP, sqlManager, vueConnexion);
this.c.init();
getContentPane().setLayout(new GridBagLayout());
JPanel left = new JPanel(new BorderLayout());
this.zoneSessions = new JTabbedPane();
this.zoneSessions.setTabPlacement(JTabbedPane.BOTTOM);
this.zoneSessions.setPreferredSize(new Dimension(600, 600));
// --------Panel haut pseudo--------//
JPanel self = new JPanel(new FlowLayout());
this.pseudoSelf = new JTextField(Utilisateur.getSelf().getPseudo());
this.pseudoSelf.setPreferredSize(new Dimension(100, 30));
this.pseudoSelf.setEditable(false);
this.pseudoSelf.setFocusable(false);
this.pseudoSelf.setEnabled(false);
this.modifierPseudo = new JButton("Modifier");
this.modifierPseudo.addActionListener(this.c);
self.add(new JLabel("Moi : "));
self.add(this.pseudoSelf);
self.add(this.modifierPseudo);
this.pseudoSelf.addKeyListener(new KeyListener() {
@Override
public void keyTyped(KeyEvent e) {
}
@Override
public void keyReleased(KeyEvent e) {
}
@Override
public void keyPressed(KeyEvent e) {
if (e.getKeyCode() == KeyEvent.VK_ENTER) {
modifierPseudo.doClick();
}
}
});
// --------Panel milieu liste utilisateurs--------//
this.activeUsersList = new JList<String>(this.userList);
this.activeUsersList.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
this.activeUsersList.setLayoutOrientation(JList.VERTICAL);
this.activeUsersList.addListSelectionListener(this.c);
System.out.println("listener ajouté");
JScrollPane listScroller = new JScrollPane(this.activeUsersList);
listScroller.setPreferredSize(new Dimension(50, 50));
listScroller.setAlignmentX(LEFT_ALIGNMENT);
listScroller.setVerticalScrollBarPolicy(ScrollPaneConstants.VERTICAL_SCROLLBAR_ALWAYS);
listScroller.setBorder(BorderFactory.createCompoundBorder(
BorderFactory.createTitledBorder("Utilisateurs Actifs"), BorderFactory.createEmptyBorder(5, 2, 2, 2)));
// --------Panel bas deconnexion--------//
JPanel deconnexion = new JPanel(new GridLayout(1, 2));
this.seDeconnecter = new JButton("Se Déconnecter");
this.seDeconnecter.addActionListener(this.c);
deconnexion.add(this.seDeconnecter);
if(Utilisateur.getSelf().getId() == "admin") {
JButton addNewUser = new JButton("Ajouter un nouvel utilisateur");
deconnexion.add(addNewUser);
}
// --------Ajout à la vue--------//
left.add(self, BorderLayout.PAGE_START);
left.add(listScroller, BorderLayout.CENTER);
left.add(deconnexion, BorderLayout.PAGE_END);
GridBagConstraints gridBagConstraintLeft = new GridBagConstraints();
GridBagConstraints gridBagConstraintSessions = new GridBagConstraints();
gridBagConstraintLeft.fill = GridBagConstraints.BOTH;
gridBagConstraintLeft.gridx = 0;
gridBagConstraintLeft.gridy = 0;
gridBagConstraintLeft.gridwidth = 1;
gridBagConstraintLeft.gridheight = 4;
gridBagConstraintLeft.weightx = 0.33;
gridBagConstraintLeft.weighty = 1;
getContentPane().add(left, gridBagConstraintLeft);
gridBagConstraintSessions.fill = GridBagConstraints.BOTH;
gridBagConstraintSessions.gridx = 1;
gridBagConstraintSessions.gridy = 0;
gridBagConstraintSessions.gridwidth = 2;
gridBagConstraintSessions.gridheight = 4;
gridBagConstraintSessions.weightx = 0.66;
gridBagConstraintSessions.weighty = 1;
getContentPane().add(this.zoneSessions, gridBagConstraintSessions);
this.pack();
this.setVisible(true);
this.addWindowListener(c);
}
// ------------ GETTERS -------------//
protected JList<String> getActiveUsersList() {
return this.activeUsersList;
}
protected JButton getButtonModifierPseudo() {
return this.modifierPseudo;
}
protected JButton getButtonDeconnexion() {
return this.seDeconnecter;
}
protected JButton getButtonConnexion() {
return this.seConnecter;
}
protected String getDisplayedPseudo() {
return this.pseudoSelf.getText();
}
// ------------ SETTERS -------------//
protected void setActiveUsersList(ArrayList<String> users) {
this.removeAllUsers();
this.userList.addAll(users);
}
protected void setDisplayedPseudo(String pseudo) {
this.pseudoSelf.setText(pseudo);
}
public void setPseudoSelf() {
this.setDisplayedPseudo(Utilisateur.getSelf().getPseudo());
}
// ------------ JOPTIONS -------------//
protected int displayJOptionSessionCreation(String pseudo) {
return JOptionPane.showConfirmDialog(this, "Voulez vous créer une session avec " + pseudo + " ?",
"Confirmation session", JOptionPane.YES_NO_OPTION);
}
protected int displayJOptionAskForSession(String pseudo) {
return JOptionPane.showConfirmDialog(this, pseudo + " souhaite creer une session avec vous.",
"Accepter demande", JOptionPane.YES_NO_OPTION);
}
protected void displayJOptionResponse(String reponse) {
JOptionPane.showMessageDialog(this, "Demande de session " + reponse);
}
// ------------ TOGGLEBUTTONS -------------//
protected void toggleEditPseudo() {
this.pseudoSelf.setEditable(!this.pseudoSelf.isEditable());
this.pseudoSelf.setFocusable(!this.pseudoSelf.isFocusable());
this.pseudoSelf.setEnabled(!this.pseudoSelf.isEnabled());
}
protected void toggleEnableButtonDeconnexion() {
this.seDeconnecter.setEnabled(!this.seDeconnecter.isEnabled());
}
protected void toggleEnableButtonConnexion() {
this.seConnecter.setEnabled(!this.seConnecter.isEnabled());
}
// ------------SESSION-------------//
protected boolean isButtonTab(Object o) {
return this.tabButtons.contains(o);
}
protected int removeSession(JButton button) {
int index = this.tabButtons.indexOf(button);
VueSession vue = this.sessions.get(index);
vue.destroyAll();
this.zoneSessions.remove(vue);
this.sessions.remove(index);
this.tabButtons.remove(index);
return index;
}
protected void addSession(String pseudo, VueSession session) {
JPanel tabTitle = new JPanel();
TabButton closeTab = new TabButton();
tabTitle.add(new JLabel(pseudo));
tabTitle.add(closeTab);
this.zoneSessions.addTab(pseudo, session);
this.zoneSessions.setTabComponentAt(this.zoneSessions.getTabCount() - 1, tabTitle);
this.tabButtons.add(closeTab);
this.sessions.add(session);
session.requestFocus();
}
protected synchronized int removeSession(VueSession vue) {
int index = this.sessions.indexOf(vue);
vue.destroyAll();
this.zoneSessions.remove(vue);
this.sessions.remove(index);
this.tabButtons.remove(index);
return index;
}
protected void closeAllSession() {
Iterator<VueSession> it = this.sessions.iterator();
while(it.hasNext()) {
VueSession session = it.next();
this.zoneSessions.remove(session);
session.destroyAll();
it.remove();
}
this.tabButtons.clear();
}
// ------------ OTHERS -------------//
protected void removeAllUsers() {
this.userList.removeAllElements();
}
public void initControleur() throws UnknownHostException, IOException {
this.c.init();
}
// ------------- PRIVATE CLASSES FOR THE TABS BUTTON -------------//
private class TabButton extends JButton {
private static final long serialVersionUID = 1L;
public TabButton() {
int size = 17;
setPreferredSize(new Dimension(size, size));
setToolTipText("close this tab");
// Make the button looks the same for all Laf's
setUI(new BasicButtonUI());
// Make it transparent
setContentAreaFilled(false);
// No need to be focusable
setFocusable(false);
setBorder(BorderFactory.createEtchedBorder());
setBorderPainted(false);
addMouseListener(VueStandard.buttonMouseListener);
// Making nice rollover effect
// we use the same listener for all buttons
addActionListener(c);
setRolloverEnabled(true);
}
// we don't want to update UI for this button
public void updateUI() {
}
// paint the cross
protected void paintComponent(Graphics g) {
super.paintComponent(g);
Graphics2D g2 = (Graphics2D) g.create();
// shift the image for pressed buttons
if (getModel().isPressed()) {
g2.translate(1, 1);
}
g2.setStroke(new BasicStroke(2));
g2.setColor(Color.BLACK);
if (getModel().isRollover()) {
g2.setColor(Color.MAGENTA);
}
int delta = 6;
g2.drawLine(delta, delta, getWidth() - delta - 1, getHeight() - delta - 1);
g2.drawLine(getWidth() - delta - 1, delta, delta, getHeight() - delta - 1);
g2.dispose();
}
}
private final static MouseListener buttonMouseListener = new MouseAdapter() {
public void mouseEntered(MouseEvent e) {
Component component = e.getComponent();
if (component instanceof AbstractButton) {
AbstractButton button = (AbstractButton) component;
button.setBorderPainted(true);
}
}
public void mouseExited(MouseEvent e) {
Component component = e.getComponent();
if (component instanceof AbstractButton) {
AbstractButton button = (AbstractButton) component;
button.setBorderPainted(false);
}
}
};
}

218
POO_Server/src/communication/CommunicationUDP.java
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@ -1,218 +0,0 @@
package communication;
import java.io.IOException;
import java.io.PrintWriter;
import java.net.InetAddress;
import java.net.UnknownHostException;
import java.util.ArrayList;
import main.Observer;
import main.Utilisateur;
import messages.*;
public class CommunicationUDP extends Thread {
private UDPClient client;
private int portServer;
private ArrayList<Integer> portOthers;
private ArrayList<Utilisateur> users = new ArrayList<Utilisateur>();
private Observer observer;
public CommunicationUDP(int portClient, int portServer, int[] portsOther) throws IOException {
this.portServer = portServer;
this.portOthers = this.getArrayListFromArray(portsOther);
new UDPServer(portServer, this).start();
this.client = new UDPClient(portClient);
}
private ArrayList<Integer> getArrayListFromArray(int ports[]) {
ArrayList<Integer> tmp = new ArrayList<Integer>();
for (int port : ports) {
tmp.add(port);
}
tmp.remove(Integer.valueOf(portServer));
return tmp;
}
// ----- CHECKERS ----- //
protected boolean containsUserFromID(String id) {
for(Utilisateur u : users) {
if(u.getId().equals(id) ) {
return true;
}
}
return false;
}
public boolean containsUserFromPseudo(String pseudo) {
for(Utilisateur u : users) {
if(u.getPseudo().equals(pseudo) ) {
return true;
}
}
return false;
}
// ----- GETTERS ----- //
public int getPortFromPseudo(String pseudo) {
for(int i=0; i < users.size() ; i++) {
if(users.get(i).getPseudo().equals(pseudo) ) {
return users.get(i).getPort();
}
}
return -1;
}
private int getIndexFromID(String id) {
for(int i=0; i < users.size() ; i++) {
if(users.get(i).getId().equals(id) ) {
return i;
}
}
return -1;
}
public Utilisateur getUserFromID(String id) {
for(Utilisateur u : users) {
if(u.getId().equals(id) ) {
return u;
}
}
return null;
}
public Observer getObserver () {
return this.observer;
}
// ----- SETTERS ----- //
public void setObserver (Observer obs) {
this.observer=obs;
}
// ----- USER LIST MANAGEMENT ----- //
//Prints a html table containing the pseudo of all active local users
public void printActiveUsersUDP(PrintWriter out) {
for (Utilisateur uIn : users) {
out.println("<TH> " + uIn.getPseudo() + ",</TH>");
}
}
//Add an user to the list of active local users
protected synchronized void addUser(String idClient, String pseudoClient, InetAddress ipClient, int port) throws IOException {
users.add(new Utilisateur(idClient, pseudoClient, ipClient, port));
try {
Message message = new MessageSysteme(Message.TypeMessage.INFO_PSEUDO, idClient, pseudoClient, port);
observer.update(this, message);
} catch (MauvaisTypeMessageException e) {
}
}
//Change the pseudo of an user already in the active local users list
protected synchronized void changePseudoUser(String idClient, String pseudoClient, InetAddress ipClient, int port) {
int index = getIndexFromID(idClient);
users.get(index).setPseudo(pseudoClient);
try {
Message message = new MessageSysteme(Message.TypeMessage.INFO_PSEUDO, idClient, pseudoClient, port);
observer.update(this, message);
} catch (MauvaisTypeMessageException e) {
}
}
//Remove an user from the active local users list
protected synchronized void removeUser(String idClient, String pseudoClient,InetAddress ipClient, int port) {
int index = getIndexFromID(idClient);
if( index != -1) {
users.remove(index);
}
try {
Message message = new MessageSysteme(Message.TypeMessage.JE_SUIS_DECONNECTE, pseudoClient, idClient, port);
observer.update(this, message);
} catch (MauvaisTypeMessageException e) {
}
}
//Remove all users from the active local users list
public void removeAll(){
int oSize = users.size();
for(int i=0; i<oSize;i++) {
users.remove(0);
}
}
// ----- SENDING MESSAGES ----- //
// Send the message "add,id,pseudo" to localhost on all the ports in
// "portOthers"
// This allows the receivers' agent (portOthers) to create or modify an entry with the
// data of this agent
//Typically used to notify of a name change
public void sendMessageInfoPseudo() throws UnknownHostException, IOException {
Utilisateur self = Utilisateur.getSelf();
String pseudoSelf =self.getPseudo();
String idSelf = self.getId();
int portSelf = self.getPort();
Message msout = null;
try {
msout = new MessageSysteme(Message.TypeMessage.INFO_PSEUDO, pseudoSelf, idSelf, portSelf);
for(int port : this.portOthers) {
this.client.sendMessageUDP_local(msout, port, InetAddress.getLocalHost());
}
} catch (Exception e) {
}
}
//Same, but on only one port
//Typically used to give your current name and id to a newly arrived host
public void sendMessageInfoPseudo(int portOther) throws UnknownHostException, IOException {
Utilisateur self = Utilisateur.getSelf();
try {
Message msout = new MessageSysteme(Message.TypeMessage.INFO_PSEUDO, self.getPseudo(), self.getId(), self.getPort());
this.client.sendMessageUDP_local(msout, portOther, InetAddress.getLocalHost());
} catch (MauvaisTypeMessageException e) {e.printStackTrace();}
}
//Broadcast a given message on the local network (here modelized by ports)
public void sendMessage(Message m) {
try {
for(int port : this.portOthers) {
this.client.sendMessageUDP_local(m, port, InetAddress.getLocalHost());
}
} catch (IOException e) {
}
}
//Send a given message to a specific user (here, by port)
public void sendMessage(Message m, int port) {
try {
this.client.sendMessageUDP_local(m, port, InetAddress.getLocalHost());
} catch (IOException e) {
}
}
}

62
POO_Server/src/communication/UDPClient.java
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@ -1,62 +0,0 @@
package communication;
import java.io.IOException;
import java.net.DatagramPacket;
import java.net.DatagramSocket;
import java.net.InetAddress;
//import java.net.NetworkInterface;
import java.net.SocketException;
import java.net.UnknownHostException;
import messages.*;
public class UDPClient {
private DatagramSocket sockUDP;
//private InetAddress broadcast;
/**
* Create an UDP client on the specified port. It will be used to notify the
* other users of this application's user state (Connected/Disconnected/Pseudo
* changed).
*
* @param port
* @throws SocketException
* @throws UnknownHostException
*/
public UDPClient(int port) throws SocketException, UnknownHostException {
this.sockUDP = new DatagramSocket(port);
}
/**
* Send a message to the specified port on localhost.
*
* @param message
* @param port
* @throws IOException
*/
protected void sendMessageUDP_local(Message message, int port, InetAddress clientAddress) throws IOException {
String messageString= message.toString();
DatagramPacket outpacket = new DatagramPacket(messageString.getBytes(), messageString.length(), clientAddress, port);
this.sockUDP.send(outpacket);
}
/**
* Send a message to the given address on the specified port.
*
* @param message
* @param port
* @param clientAddress
* @throws IOException
*/
private void sendMessageUDP(Message message, int port, InetAddress clientAddress) throws IOException {
String messageString = message.toString();
DatagramPacket outpacket = new DatagramPacket(messageString.getBytes(), messageString.length(), clientAddress,
port);
this.sockUDP.send(outpacket);
}
}

86
POO_Server/src/communication/UDPServer.java
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@ -1,86 +0,0 @@
package communication;
import java.io.IOException;
import java.net.DatagramPacket;
import java.net.DatagramSocket;
import java.net.SocketException;
import main.Utilisateur;
import messages.*;
public class UDPServer extends Thread {
private DatagramSocket sockUDP;
private CommunicationUDP commUDP;
private byte[] buffer;
/**
* Create an UDP Server on the specified port. It will be used to read the
* other users states (Connected/Disconnected/Pseudo).
*
* @param port
* @param commUDP
* @throws SocketException
*/
public UDPServer(int port, CommunicationUDP commUDP) throws SocketException {
this.commUDP = commUDP;
this.sockUDP = new DatagramSocket(port);
this.buffer = new byte[256];
}
@Override
public void run() {
while (true) {
try {
DatagramPacket inPacket = new DatagramPacket(buffer, buffer.length);
this.sockUDP.receive(inPacket);
String msgString = new String(inPacket.getData(), 0, inPacket.getLength());
Message msg = Message.stringToMessage(msgString);
switch(msg.getTypeMessage()) {
case JE_SUIS_CONNECTE :
if(Utilisateur.getSelf() != null) {
//System.out.println("first co");
int portClient = inPacket.getPort();
int portServer = portClient+1;
this.commUDP.sendMessageInfoPseudo(portServer);
this.commUDP.getObserver().update(this, portServer);
}
break;
case INFO_PSEUDO :
if (this.commUDP.containsUserFromID(((MessageSysteme) msg).getId())) {
this.commUDP.changePseudoUser(((MessageSysteme) msg).getId(), ((MessageSysteme) msg).getPseudo(), inPacket.getAddress(),((MessageSysteme) msg).getPort());
}
else {
this.commUDP.addUser(((MessageSysteme) msg).getId(), ((MessageSysteme) msg).getPseudo(), inPacket.getAddress(), ((MessageSysteme) msg).getPort() );
System.out.println(((MessageSysteme) msg).getId()+", "+((MessageSysteme) msg).getPseudo());
}
break;
case JE_SUIS_DECONNECTE :
this.commUDP.removeUser( ((MessageSysteme) msg).getId() , ((MessageSysteme) msg).getPseudo(), inPacket.getAddress(), inPacket.getPort());
break;
default : //Others types of messages are ignored because they are supposed to be transmitted by TCP and not UDP
}
} catch (IOException e) {
System.out.println("receive exception");
}
}
}
}

6
POO_Server/src/main/Observer.java
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@ -1,6 +0,0 @@
package main;
public interface Observer {
public void update(Object o, Object arg);
}

323
POO_Server/src/main/ServletPresence.java
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@ -1,323 +0,0 @@
package main;
import java.io.IOException;
import java.io.PrintWriter;
import java.net.InetAddress;
import java.net.UnknownHostException;
import java.util.ArrayList;
import java.util.Arrays;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import communication.CommunicationUDP;
import messages.*;
/**
* Servlet implementation class ServletPresence
*/
@WebServlet("/ServletPresence")
public class ServletPresence extends HttpServlet implements Observer {
private static final long serialVersionUID = 1L;
private CommunicationUDP comUDP;
private ArrayList<Utilisateur> remoteUsers;
private String[] registeredRemoteUsers = {"user1","user2","user3"};
public ServletPresence() {
try {
comUDP = new CommunicationUDP(3333, 3334, new int[] {2209, 2309, 2409, 2509, 3334});
} catch (IOException e) {
}
comUDP.setObserver(this);
remoteUsers = new ArrayList<Utilisateur>();
try {
Utilisateur.setSelf("serv_p", "Serveur de presence", "localhost", 3334);
} catch (UnknownHostException e) {
}
}
// ----- REMOTE USER LIST MANAGEMENT ----- //
private int getIndexByID(String id) {
for(int i=0; i < remoteUsers.size() ; i++) {
if(remoteUsers.get(i).getId().equals(id) ) {
return i;
}
}
return -1;
}
private boolean remoteContainsUserFromPseudo(String pseudo) {
for(Utilisateur u : remoteUsers) {
if(u.getPseudo().equals(pseudo) ) {
return true;
}
}
return false;
}
// ----- HTML PRINT METHODS ----- //
//Affiche la liste des utilisateurs actifs
private void printActiveUsers(PrintWriter out) {
out.println( "<TABLE>" );
out.println("<TH>Utilisateurs connectés : </TH>");
for (Utilisateur uExt : remoteUsers) {
out.println("<TH> " + uExt.getPseudo() + ",</TH>");
}
comUDP.printActiveUsersUDP(out);
out.println( "</TABLE>" );
}
//Affiche la liste des utilisateurs actifs, seule sur la page
private void printActiveUsersOnly(PrintWriter out) {
out.println( "<HTML>" );
out.println( "<HEAD>");
out.println( "<TITLE>Serveur de présence</TITLE>" );
out.println( "</HEAD>" );
out.println( "<BODY>" );
printActiveUsers(out);
out.println( "</BODY>" );
out.println( "</HTML>" );
}
//Affiche la page d'accueil
private void printHomePage(PrintWriter out) {
out.println( "<HTML>" );
out.println( "<HEAD>");
out.println( "<TITLE>Serveur de présence - Accueil</TITLE>" );
out.println( "</HEAD>" );
out.println( "<BODY>" );
out.println( "<H1>Bienvenue sur le service de connexion à distance</H1>" );
out.println( "<H2>Vous pouvez taper votre requête dans la barre de navigation</H2>" );
out.println( "<H2>Requêtes (à ajouter derrière l'URL) : </H2>" );
out.println( "<H3>Se connecter : ?type=POST&id=[votre id]&pseudo=[pseudo voulu]&port=[port utilisé] </H3>" );
out.println( "<H3>Se déconnecter : ?type=DELETE&id=[votre id] </H3>" );
out.println( "<H3>Changer de pseudo : ?type=PUT&id=[votre id]&pseudo=[pseudo voulu] </H3>" );
out.println( "<H3>Rafraîchir la liste des utilisateurs : ?type=GET" );
out.println( "</BODY>" );
out.println( "</HTML>" );
}
//Affiche un message d'erreur en cas de pseudo déjà utilisé
private void printErrorUsedPseudo(PrintWriter out){
out.println( "<HTML>" );
out.println( "<HEAD>");
out.println( "<TITLE>Erreur pseudo déjà utilisé</TITLE>" );
out.println( "</HEAD>" );
out.println( "<BODY>" );
out.println( "<H1>Erreur : Ce pseudo est déjà utilisé</H1>" );
out.println( "<H2>Veuillez choisir un autre pseudo</H2>" );
out.println( "</BODY>" );
printActiveUsers(out);
out.println( "</HTML>" );
}
//Affiche un message d'erreur en cas de requête invalide
private void printErrorInvalidRequest(PrintWriter out) {
out.println( "<HTML>" );
out.println( "<HEAD>");
out.println( "<TITLE>Erreur requête invalide</TITLE>" );
out.println( "</HEAD>" );
out.println( "<BODY>" );
out.println( "<H1>Erreur : nous n'avons pas compris votre requête</H1>" );
out.println( "<H2>Veuillez vérifier votre syntaxe et réessayer</H2>" );
out.println( "</BODY>" );
out.println( "</HTML>" );
}
//Affiche un message d'erreur en cas d'id inconnue
private void printErrorUnkwownUser(PrintWriter out) {
out.println( "<HTML>" );
out.println( "<HEAD>");
out.println( "<TITLE>Erreur Utilisateur Inconnu</TITLE>" );
out.println( "</HEAD>" );
out.println( "<BODY>" );
out.println( "<H1>Erreur : l'id que vous avez entrée n'est pas enregistrée</H1>" );
out.println( "<H2>Veuillez vérifier votre syntaxe et réessayer</H2>" );
out.println( "</BODY>" );
out.println( "</HTML>" );
}
// ----- NOTIFY METHOD ----- //
//Informe de la modification de la liste tous les utilisateurs internes et externes : appelée automatiquement à chaque modification de la liste
private void snotify(MessageSysteme message, Utilisateur user) {
if (remoteUsers.contains(user)) {
//diffuse le message localement, envoie la nouvelle liste des utilisateurs aux utilisateurs externes SAUF L'EXPEDITEUR
comUDP.sendMessage(message);
for (Utilisateur u : remoteUsers) {
if (!u.equals(user)) {
comUDP.sendMessage(message, u.getPort());
}
}
}
else {
//envoie la nouvelle liste des utilisateurs aux utilisateurs externes
for (Utilisateur u : remoteUsers) {
comUDP.sendMessage(message, u.getPort());
}
}
}
// ----- HTTP METHODS ----- //
// susbribe/unsubscribe : Permet a un utilisateur externe de s'ajouter/s'enlever à la liste des utilisateurs externes : au tout début de l'application
//Note : le serveur agit comme un proxy pour le TCP et remplace le port de l'utilisateur par le sien
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
String id = request.getParameter("id");
String pseudo = request.getParameter("pseudo");
int port = Integer.parseInt(request.getParameter("port"));
InetAddress ip = InetAddress.getByName(request.getRemoteAddr());
response.setContentType( "text/html" );
PrintWriter out = response.getWriter();
//Si l'id n'existe pas dans la BDD : génère du html pour en informer l'utilisateur
try {
if (!Arrays.asList(registeredRemoteUsers).contains(id)) {
printErrorUnkwownUser(out);
}
//Si le pseudo est déjà pris : idem
else if (comUDP.containsUserFromPseudo(pseudo)||remoteContainsUserFromPseudo(pseudo)) {
printErrorUsedPseudo(out);
}
//Sinon
else {
Utilisateur user = new Utilisateur(id, pseudo, ip, port);
remoteUsers.add(user);
try {
snotify(new MessageSysteme(Message.TypeMessage.INFO_PSEUDO, pseudo, id, 3334), user);
} catch (MauvaisTypeMessageException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
printActiveUsersOnly(out);
}
} catch (UnknownHostException e) {
}
out.close();
}
protected void doDelete(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException{
String id = request.getParameter("id");
int index = getIndexByID(id);
Utilisateur user = remoteUsers.get(index);
try {
snotify(new MessageSysteme(Message.TypeMessage.JE_SUIS_DECONNECTE,"", id, 3334), user);
} catch (MauvaisTypeMessageException e) {
}
remoteUsers.remove(index);
response.setContentType( "text/html" );
PrintWriter out = response.getWriter();
printHomePage(out);
out.close();
}
//Permet de dire si on a changé de pseudo (pour les utilisateurs externes)
protected void doPut(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException{
String id = request.getParameter("id");
String pseudo = request.getParameter("pseudo");
int index = getIndexByID(id);
response.setContentType( "text/html" );
PrintWriter out = response.getWriter();
//Si le pseudo est déjà pris : génère du html pour en informer l'utilisateur
if (comUDP.containsUserFromPseudo(pseudo)||remoteContainsUserFromPseudo(pseudo)) {
printErrorUsedPseudo(out);
}
else {
Utilisateur user = remoteUsers.get(index);
user.setPseudo(pseudo);
try {
snotify(new MessageSysteme(Message.TypeMessage.INFO_PSEUDO, pseudo, id, 3334), user);
} catch (MauvaisTypeMessageException e) {
}
printActiveUsersOnly(out);
}
out.close();
}
//Méthode générale, embranche vers l'une au l'autre des méthodes HTTP (à défaut d'une "vraie" interface)
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException{
try {
String type= request.getParameter("type");
switch(type) {
case "POST" :
doPost(request, response);
break;
case "DELETE" :
doDelete(request, response);
break;
case "PUT" :
doPut(request, response);
break;
case "GET" :
//Met à jour la liste des utilisateurs affichée
PrintWriter out1 = response.getWriter();
printActiveUsersOnly(out1);
out1.close();
//génère une jolie page
default :
response.setContentType( "text/html" );
PrintWriter out = response.getWriter();
printErrorInvalidRequest(out);
out.close();
}
}
//Si pas d'argument type : page d'accueil
catch (java.lang.NullPointerException e) {
response.setContentType( "text/html" );
PrintWriter out = response.getWriter();
printHomePage(out);
out.close();
}
}
// ----- OBSERVER METHOD ----- //
@Override
//Note : on part du principe que pour les communications TCP et autres, le serveur agira comme un proxy et donc que les
//utilisateurs externes n'ont pas besoin de connaitre les ip internes des machines
public void update(Object o, Object arg) {
// pour transmettre aux utilisateurs externes les modifications internes
if (arg instanceof MessageSysteme) {
MessageSysteme message = (MessageSysteme) arg;
snotify(message, comUDP.getUserFromID(message.getId()));
}
//pour transmettre la liste des utilisateurs externes aux nouveaux arrivants internes
if (arg instanceof Integer) {
int port = (int)arg;
for (Utilisateur u : remoteUsers) {
try {
comUDP.sendMessage(new MessageSysteme(Message.TypeMessage.INFO_PSEUDO, u.getPseudo(), u.getId(), u.getPort()), port);
} catch (MauvaisTypeMessageException e) {
}
}
}
}
}

115
POO_Server/src/main/Utilisateur.java
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@ -1,115 +0,0 @@
package main;
import java.io.Serializable;
import java.net.*;
public class Utilisateur implements Serializable{
private static final long serialVersionUID = 1L;
private String id;
private String pseudo;
private InetAddress ip;
private int port;
//Represents the user that is currently using the application
private static Utilisateur self;
/**
* Create and initialize an object representing an user
*
* @param id : user id as String
* @param pseudo : name under which other users can see this user as String
* @param ip : ip of the device this user is currently using as InetAddress
* @param port : on local mode, port used for the TCP listen socket as int
*
*/
public Utilisateur(String id, String pseudo, InetAddress ip, int port) throws UnknownHostException {
this.id = id;
this.pseudo = pseudo;
this.ip = ip;
this.port = port;
}
// ----- GETTERS ----- //
/**
* Returns user id as String
*
* @return user id as String
*/
public String getId() {
return id;
}
/**
* Returns user pseudo as String
*
* @return user pseudo as String
*/
public String getPseudo() {
return pseudo;
}
/**
* Returns user device's ip as String
*
* @return user device's ip as String
*/
public InetAddress getIp() {
return ip;
}
/**
* Returns the port the user uses for their TCP listen socket as int
*
* @return TCP listen socket port as int
*/
public int getPort() {
return port;
}
/**
* Returns the user currently using this instance of the application as Utilisateur
*
* @return current user as Utilisateur
*/
public static Utilisateur getSelf() {
return Utilisateur.self;
}
// ----- SETTERS ----- //
/**
* Change the pseudo used by an user
*
* @param pseudo : new pseudo as String
*/
public void setPseudo(String pseudo) {
this.pseudo = pseudo;
}
/**
* Sets the self static attribute with a new Utilisateur
*
* @param id : user id as String
* @param pseudo : name under which other users can see this user as String
* @param ip : ip of the device this user is currently using as InetAddress
* @param port : on local mode, port used for the TCP listen socket as int
*/
public static void setSelf(String id, String pseudo, String host, int port) throws UnknownHostException {
if(Utilisateur.self == null) {
Utilisateur.self = new Utilisateur(id, pseudo, InetAddress.getByName(host), port);
}
}
/**
* Sets the self static attribute with null
*/
public static void resetSelf() {
Utilisateur.self = null;
}
}

8
POO_Server/src/messages/MauvaisTypeMessageException.java
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@ -1,8 +0,0 @@
package messages;
public class MauvaisTypeMessageException extends Exception {
private static final long serialVersionUID = 1L;
}

130
POO_Server/src/messages/Message.java
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@ -1,130 +0,0 @@
package messages;
import java.io.Serializable;
import java.time.LocalDateTime;
import java.time.format.DateTimeFormatter;
public abstract class Message implements Serializable {
public enum TypeMessage {JE_SUIS_CONNECTE, JE_SUIS_DECONNECTE, INFO_PSEUDO, TEXTE, IMAGE, FICHIER, FICHIER_INIT, FICHIER_ANSWER}
protected TypeMessage type;
private String dateMessage;
private String sender;
private static final long serialVersionUID = 1L;
// ------- GETTERS ------ //
/**
* Returns the current date and time as a string using DateTimeFormatter and LocalDateTime
*
* @return date and time as a String
*/
public static String getDateAndTime() {
DateTimeFormatter dtf = DateTimeFormatter.ofPattern("yyyy/MM/dd HH:mm:ss");
LocalDateTime now = LocalDateTime.now();
return dtf.format(now);
}
/**
* Returns the type of the message
*
* @return message type as TypeMessage
*/
public TypeMessage getTypeMessage() {
return this.type;
}
/**
* Returns the date and time to which the message was timestamped
*
* @return date and time of timestamp as String
*/
public String getDateMessage() {
return this.dateMessage;
}
/**
* Returns the sender of the message (used in the database)
*
* @return sender of message as String
*/
public String getSender() {
return this.sender ;
}
// ------ SETTERS ------ //
/**
* Set the date of the message to a specific timestamp
*
* @param timestamp as (formatted) String
*/
public void setDateMessage(String dateMessage) {
this.dateMessage = dateMessage;
}
/**
* Set the sender of the message to a specified string
*
* @param sender pseudo as String
*/
public void setSender(String sender) {
this.sender = sender;
}
// ----- MESSAGE-STRING CONVERSION METHODS -------//
/**
* Returns a string representing the formatted list of attributes
*
*@return attributes as a String
*/
protected abstract String attributsToString();
/**
* Returns the message as a formatted string
*
*@return message as a String
*/
public String toString() {
return this.type+"###"+this.attributsToString();
}
/**
* Static method. Returns a message obtainer by parsing a given string
*
*@param String representing a message
*@return Message
*/
public static Message stringToMessage(String messageString) {
try {
String[] parts = messageString.split("###");
switch (parts[0]) {
case "JE_SUIS_CONNECTE" :
return new MessageSysteme(TypeMessage.JE_SUIS_CONNECTE);
case "JE_SUIS_DECONNECTE" :
return new MessageSysteme(TypeMessage.JE_SUIS_DECONNECTE, parts[1], parts[2], Integer.parseInt(parts[3]) );
case "INFO_PSEUDO" :
return new MessageSysteme(TypeMessage.INFO_PSEUDO, parts[1], parts[2], Integer.parseInt(parts[3]) );
case "TEXTE" :
return new MessageTexte(TypeMessage.TEXTE, parts[1]);
case "IMAGE" :
return new MessageFichier(TypeMessage.IMAGE, parts[1], parts[2]);
case "FICHIER" :
return new MessageFichier(TypeMessage.FICHIER, parts[1], parts[2]);
}
} catch (MauvaisTypeMessageException e) {}
return null;
}
}

82
POO_Server/src/messages/MessageFichier.java
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@ -1,82 +0,0 @@
package messages;
public class MessageFichier extends Message {
private static final long serialVersionUID = 1L;
private String contenu;
private String extension;
/**
* Create a file message. These message are used for all interactions regarding file transfer.
*
* The "FICHIER_INIT" messages are used to inform the recipient application that you wish to transfer them files.
* The "FICHIER_ANSWER" messages are answers to "FICHIER_INIT" messages. They indicate that you are ready to receive the file.
* The "contenu" argument then contains the port on which you wish to receive the files.
*
* The "FICHIER" messages contains the files themselves.
* The "IMAGE" messages contains images files, which means the application will display a thumbnail for the image to the recipient.
*
* @param TypeMessage type (must be FICHIER_INIT, FICHIER_ANSWER, FICHIER or IMAGE, else an error is raised)
* @param contenu : message content as String
* @param extension : file extension as string
*
* @throws MauvaisTypeMessageException
*/
public MessageFichier(TypeMessage type, String contenu, String extension) throws MauvaisTypeMessageException{
if ((type==TypeMessage.IMAGE)||(type==TypeMessage.FICHIER) ||(type==TypeMessage.FICHIER_INIT) || (type==TypeMessage.FICHIER_ANSWER) ) {
this.type=type;
this.contenu=contenu;
this.extension=extension;
this.setDateMessage(Message.getDateAndTime());
}
else throw new MauvaisTypeMessageException();
}
// ----- GETTERS ----- //
/**
* Returns content of the message
*
* @return content as String
*/
public String getContenu() {
return this.contenu;
}
/**
* Returns extension of the file contained in the message (if the message contains a file)
*
* @return extension as String
*/
public String getExtension() {
return this.extension;
}
// ----- MESSAGE-STRING CONVERSION METHODS -------//
/**
* Implements attributsToString method of Message
*
* @return attributes as a String
*/
@Override
protected String attributsToString() {
return this.contenu+"###"+this.extension;
}
public String toString() {
if(this.type == TypeMessage.IMAGE) {
return this.contenu;
}else {
String suffixe;
if(this.getSender().equals("Moi")) {
suffixe = "envoyé\n";
}else {
suffixe = "reçu\n";
}
return "<"+this.getDateMessage()+"> : "+this.contenu+" "+suffixe;
}
}
}

96
POO_Server/src/messages/MessageSysteme.java
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@ -1,96 +0,0 @@
package messages;
public class MessageSysteme extends Message {
private static final long serialVersionUID = 1L;
private String pseudo;
private String id;
private int port;
// ------ CONSTRUCTORS ------ //
/**
* Create a system message. These message are used for all system interactions by the UDP channel.
* The "JE_SUIS_CONNECTE" messages are used to inform the network that you just joined.
* They are sent directly after an user log in, and await multiple "INFO_PSEUDO" messages as answers, to build the table of users logged in.
*
* @param TypeMessage type (must be JE_SUIS_CONNECTE, else an error is raised)
* @throws MauvaisTypeMessageException
*/
public MessageSysteme(TypeMessage type) throws MauvaisTypeMessageException{
if (type==TypeMessage.JE_SUIS_CONNECTE) {
this.type=type;
this.pseudo="";
this.id="";
this.port = -1;
}
else throw new MauvaisTypeMessageException();
}
/**
* Create a system message. These message are used for all system interactions by the UDP channel.
* The "JE_SUIS_DECONNECTE" messages are used to inform the network that you just quit it.
*
* The "INFO_PSEUDO" are used to give informations about you to another user, much like an business card.
* They are used either as an answer to a "JE_SUIS_CONNECTE" message or to inform the network of a change of pseudo.
*
* @param TypeMessage type (must be JE_SUIS_DECONNECTE or INFO_PSEUDO, else an error is raised)
* @param pseudo : user pseudo as String
* @param id : user id as String
* @param port : "server" UDP port used by the application (used when the application id in local mode)
*
* @throws MauvaisTypeMessageException
*/
public MessageSysteme(TypeMessage type, String pseudo, String id, int port) throws MauvaisTypeMessageException {
if (type==TypeMessage.INFO_PSEUDO ||(type==TypeMessage.JE_SUIS_DECONNECTE)) {
this.type=type;
this.pseudo=pseudo;
this.id=id;
this.port = port;
}
else throw new MauvaisTypeMessageException();
}
// ----- GETTERS ----- //
/**
* Returns pseudo of the sender of the message (when type == INFO_PSEUDO)
*
* @return user pseudo as String
*/
public String getPseudo() {
return this.pseudo;
}
/**
* Returns id of the sender of the message (when type == INFO_PSEUDO)
*
* @return user id as String
*/
public String getId() {
return this.id;
}
/**
* Returns the "server" UDP port used by the sender of the message
*
* @return port as integer
*/
public int getPort() {
return this.port;
}
// ----- MESSAGE-STRING CONVERSION METHODS -------//
/**
* Implements attributsToString method of Message
*
* @return attributes as a String
*/
@Override
protected String attributsToString() {
return this.pseudo+"###"+this.id+"###"+this.port;
}
}

55
POO_Server/src/messages/MessageTexte.java
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@ -1,55 +0,0 @@
package messages;
public class MessageTexte extends Message {
private static final long serialVersionUID = 1L;
private String contenu;
/**
* Create a text message. These message are used for basic text conversation via TCP.
*
* @param TypeMessage type (must be TEXT, else an error is raised)
* @param contenu : message content as String
*
* @throws MauvaisTypeMessageException
*/
public MessageTexte(TypeMessage type, String contenu) throws MauvaisTypeMessageException{
if (type==TypeMessage.TEXTE) {
this.type=type;
this.contenu=contenu;
this.setDateMessage(Message.getDateAndTime());
}
else throw new MauvaisTypeMessageException();
}
// ----- GETTERS ----- //
/**
* Returns content of the message
*
* @return content as String
*/
public String getContenu() {
return this.contenu;
}
// ----- MESSAGE-STRING CONVERSION METHODS -------//
/**
* Implements attributsToString method of Message
*
* @return attributes as a String
*/
@Override
protected String attributsToString() {
return this.contenu;
}
@Override
public String toString() {
return "<"+this.getDateMessage()+"> "+this.getSender()+" : "+this.contenu+"\n";
}
}

17
README.md
View file

@ -1,3 +1,20 @@
# Projet_COO_POO
Projet de 4ème année : Conception et programmation orientée objet d'un systeme de clavardage distribué interactif multi-utilisateur temps réel
Contenu (branche master):
Dossier rapports : rapports de conception et de projet
Dossier application : archives .jar permettant d'exécuter l'application (version classique)
Dossier serveur_presence : archives .jar et .war permettant d'exécuter respectivement l'application (version compatible avec le serveur) et le serveur de présence
Pour récupérer les codes sources :
- De l'application classique : branche application
- Du serveur et de l'application modifiée : branche serveur_presence (l'application est dans le projet POO, le servlet dans le projet POO_Server)
Toutes les autres branches concernent des versions obsolètes de l'application, merci de ne pas en tenir compte.

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sqlite-jdbc-3.32.3.2.jar → application/chat_lib/sqlite-jdbc-3.32.3.2.jar
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modelisation/dossmod.txt
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modelisation/package_database.png
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