src/main/java/net/pixtaded/crab/Main.java

@@ -34,7 +34,7 @@ public class Main {
                 if (args.length > 1) {
                     boolean isProxied = false;
                     if (args.length > 2)
-                        isProxied = args[2].equals("on");
+                        isProxied = args[2].equals("on") ? true : false;
                     try {
                         server = new CrabServer(Integer.parseInt(args[1]), isProxied);
                     } catch (NumberFormatException e) {
@@ -42,12 +42,15 @@ public class Main {
                         return;
                     }
                 } else {
-                    System.err.println("Not enough arguments.");
+                    System.err.println("Now enough arguments.");
                     return;
                 }
                 server.run();
             }
-            default -> System.err.println("Unknown argument");
+            default -> {
+                System.err.println("Unknown argument");
+                return;
+            }
         }
     }
 

src/main/java/net/pixtaded/crab/client/CrabClient.java

@@ -84,26 +84,16 @@ public class CrabClient implements Crab {
     private void communicate() throws IOException {
         Scanner scanner = new Scanner(System.in);
         String message;
-        boolean preserveScreen = false;
-
         while (true) {
-            if (!preserveScreen) {
             getLogs();
-            } else {
-                preserveScreen = false;
-            }
-
             System.out.print("Enter a message (or type '/exit' to exit): ");
             message = scanner.nextLine();
 
             if (message.equalsIgnoreCase("/exit")) {
                 break;
-            } else if (message.equalsIgnoreCase("/info")) {
-                sendPacket(SERVER_INFO, "", true);
-                preserveScreen = true;
-            } else {
-                if (!message.isEmpty()) sendMessage(message);
             }
+
+            if (!message.isEmpty()) sendMessage(message);
         }
     }
 
@@ -138,28 +128,7 @@ public class CrabClient implements Crab {
             } case LOGS -> {
                 byte[] bytes = socket.getInputStream().readNBytes(lastBufferLength);
                 cache = new Logs(lastBufferLength, new String(bytes, StandardCharsets.UTF_8));
-            } case SERVER_INFO -> {
-                InputStream input = socket.getInputStream();
-                int versionByte = input.read();
-                if (versionByte == -1) {
-                    System.out.println("The server did not provide any information...");
-                    return;
-                }
-
-                String protocolVersion;
-                switch (versionByte) {
-                    case 0x01 -> protocolVersion = "RACv1";
-                    case 0x02 -> protocolVersion = "RACv1.99";
-                    case 0x03 -> protocolVersion = "RACv2";
-                    default -> protocolVersion = "Unknown RAC version";
-                }
-
-                byte[] nameBytes = input.readAllBytes();
-                String serverName = new String(nameBytes, StandardCharsets.UTF_8);
-
-                System.out.println("\n\033[36mServer Information:\033[0m");
-                System.out.println("\033[33mProtocol:\033[0m " + protocolVersion);
-                System.out.println("\033[33mName:\033[0m " + serverName + "\n");
+            } default -> {
             }
         }
     }

src/main/java/net/pixtaded/crab/common/PID.java

@@ -7,5 +7,4 @@ public class PID {
     public static final byte CACHED_LOGS = 0x02;
     public static final byte AUTHENTICATED_MESSAGE = 0x02;
     public static final byte REGISTER = 0x03;
-    public static final byte SERVER_INFO = 0x69;
 }

src/main/java/net/pixtaded/crab/server/CrabServer.java

@@ -6,10 +6,7 @@ import java.io.IOException;
 import java.net.InetAddress;
 import java.net.ServerSocket;
 import java.net.Socket;
-import java.sql.SQLException;
 import java.util.Scanner;
-import java.util.concurrent.ExecutorService;
-import java.util.concurrent.Executors;
 
 public class CrabServer implements Crab {
 
@@ -18,9 +15,7 @@ public class CrabServer implements Crab {
     private boolean isProxied = false;
     private int port;
     private final Database db;
-    private Logs cache = new Logs(0, "");
-    public static final byte RAC_VERSION = 0x02;
-    public final ExecutorService threadPool = Executors.newCachedThreadPool();
+    public Logs cache = new Logs(0, "");
 
     public CrabServer() {
         this.db = new Database("data.db");
@@ -84,10 +79,12 @@ public class CrabServer implements Crab {
             serverSocket = new ServerSocket(port);
         }
         System.out.printf("Server successfully started! Listening on port %s.\nTo stop the server, type 'q'.\n", port);
-        threadPool.submit(new ServerCLI(scanner, this));
+        ServerCLI cli = new ServerCLI(scanner, this);
+        new Thread(cli).start();
         while (!isStopped) {
             Socket socket = serverSocket.accept();
-            threadPool.submit(new ServerThread(socket, this));
+            ServerThread thread = new ServerThread(socket, this);
+            new Thread(thread).start();
         }
     }
 
@@ -95,24 +92,13 @@ public class CrabServer implements Crab {
         isStopped = true;
         try {
             if (serverSocket != null) serverSocket.close();
-            getDb().close();
         } catch (IOException e) {
             System.err.println("An error occured while closing the socket: " + e.getMessage());
-        } catch (SQLException e) {
-            throw new RuntimeException(e);
         } finally {
             System.exit(0);
         }
     }
 
-    public synchronized Logs getCache() {
-        return cache;
-    }
-
-    public synchronized void setCache(Logs cache) {
-        this.cache = cache;
-    }
-
     public Database getDb() {
         return db;
     }

src/main/java/net/pixtaded/crab/server/Database.java

@@ -61,8 +61,4 @@ public class Database {
         String logsString = s.toString();
         return new Logs(logsString.isEmpty() ? 0 : logsString.getBytes().length, logsString);
     }
-
-    public void close() throws SQLException {
-        connection.close();
-    }
 }

src/main/java/net/pixtaded/crab/server/ServerThread.java

@@ -47,7 +47,7 @@ public class ServerThread implements Runnable {
                 }
                 if (Arrays.equals(readUntilChar(' '),"ROXY".getBytes())) {
                     readUntilChar(' '); // proto
-                    byte[] source = readUntilChar(' ');
+                    byte source[] = readUntilChar(' ');
                     address = new String(source);
                     readUntilChar(' '); // destination IP
                     readUntilChar(' '); // source port
@@ -74,27 +74,18 @@ public class ServerThread implements Runnable {
                     Date date = new Date();
 
                     String s = Sanitizer.sanitizeString(msg, true);
-                    String newContent = server.getCache().content() + Sanitizer.formatMessage(date.getTime(), address, s);
-                    server.setCache(new Logs(newContent.getBytes().length, newContent));
-                    server.threadPool.submit(new LogDBThread(date, address, msg));
+                    String newContent = server.cache.content() + Sanitizer.formatMessage(date.getTime(), address, s);
+                    server.cache = new Logs(newContent.getBytes().length, newContent);
+
+                    new Thread(new LogDBThread(date, address, msg)).start();
                 } case LOGS_SIZE -> {
-                    respond(String.valueOf(server.getCache().sizeInBytes()));
+                    respond(String.valueOf(server.cache.sizeInBytes()));
                     byte[] logPID = readPID();
                     if (logPID.length == 0) {
                         socket.close();
                         return;
                     }
                     sendLogs(logPID[0]);
-                } case SERVER_INFO -> {
-                    byte protocolVersion = CrabServer.RAC_VERSION;
-                    String serverName = "CRAB";
-
-                    byte[] nameBytes = serverName.getBytes(StandardCharsets.UTF_8);
-                    byte[] response = new byte[1 + nameBytes.length];
-                    response[0] = protocolVersion;
-                    System.arraycopy(nameBytes, 0, response, 1, nameBytes.length);
-
-                    respond(response);
                 } default -> System.out.println("PID not implemented: " + PID[0]);
             }
             socket.close();
@@ -108,32 +99,28 @@ public class ServerThread implements Runnable {
     }
 
     private byte[] readUntilChar(char c) throws IOException {
-        ByteArrayOutputStream buffer = new ByteArrayOutputStream();
-        int b;
-        while ((b = input.read()) != -1) {
-            if (b == (byte) c) {
+        byte b[] = new byte[256];
+        int i;
+        for (i = 0;; i++) {
+            b[i] = (byte)input.read();
+            if (b[i] == c)
                 break;
         }
-            buffer.write(b);
-        }
-        if (b == -1) {
-            throw new EOFException("Delimiter not found before EOF");
-        }
-        return buffer.toByteArray();
+        byte r[] = new byte[i];
+        System.arraycopy(b, 0, r, 0, i);
+        return r;
     }
 
     private void sendLogs(byte PID) throws IOException {
         if (PID == LOGS) {
-            respond(server.getCache().content());
+            respond(server.cache.content());
         } else if (PID == CACHED_LOGS) {
             String clientSize = Util.readAsciiNumber(in);
             int clientSizeNum = Integer.parseInt(clientSize);
-            byte[] serverLogs = server.getCache().content().getBytes(StandardCharsets.UTF_8);
-            int logPartSize = Math.max(0, serverLogs.length - clientSizeNum);
+            byte[] serverLogs = server.cache.content().getBytes(StandardCharsets.UTF_8);
+            int logPartSize = serverLogs.length - clientSizeNum;
             byte[] logPart = new byte[logPartSize];
-            if (logPartSize > 0) {
-                System.arraycopy(serverLogs, clientSizeNum, logPart, 0, logPartSize);
-            }
+            System.arraycopy(serverLogs, serverLogs.length - logPartSize, logPart, 0, logPartSize);
             respond(logPart);
         }
     }