init

server/src/main/java/org/orinprojects/Server.java

@@ -0,0 +1,66 @@
+package org.orinprojects;
+
+import org.bouncycastle.crypto.AsymmetricCipherKeyPair;
+import org.orinprojects.encryption.Encryption;
+import org.orinprojects.exceptions.ArgumentsException;
+
+import javax.crypto.SecretKey;
+import java.io.*;
+import java.net.ServerSocket;
+import java.net.Socket;
+import java.security.KeyPair;
+import java.security.NoSuchAlgorithmException;
+import java.security.PublicKey;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.concurrent.Executors;
+import java.util.concurrent.ThreadPoolExecutor;
+
+public class Server {
+
+    public static List<ClientHandler> clients = new ArrayList<>();
+
+    public static HashMap<String, PublicKey> clientKeys = new HashMap<>();
+
+    public static ThreadPoolExecutor executor = (ThreadPoolExecutor) Executors.newFixedThreadPool(20);
+
+    public static KeyPair serverKeys;
+
+    public static SecretKey aesKey;
+
+    public static void main(String[] args) throws IOException, ArgumentsException, NoSuchAlgorithmException {
+        Server.serverKeys = Encryption.generateRSAKey();
+        Server.aesKey = Encryption.generateAESKey();
+
+        int portNumber = getPortNumber(args);
+
+        ServerSocket server = new ServerSocket(portNumber);
+        while (!server.isClosed()) {
+            Socket clientSocket = server.accept();
+
+            ClientHandler clientHandler = new ClientHandler(clientSocket);
+            clients.add(clientHandler);
+
+            executor.execute(clientHandler);
+        }
+    }
+
+    private static int getPortNumber(String[] args) throws ArgumentsException {
+        if (args.length != 2)
+            throw new ArgumentsException("Not enough or too much arguments");
+
+        if (!args[0].equals("-p"))
+            throw new ArgumentsException("No port parameter. Use -p to specify port");
+
+        int port;
+        try {
+            port = Integer.parseInt(args[1]);
+        } catch (NumberFormatException numberFormatException) {
+            throw new ArgumentsException("Wrong number format! Example: -p 6666");
+        }
+
+        return port;
+    }
+
+}