commit e1347af8b118fecd2a3c288040860040232e98f2
Author: sirjonasxx <hoii93@hotmail.be>
Date:   Thu Mar 29 19:28:59 2018 +0200

    Initial commit

diff --git a/src/main/Main.java b/src/main/Main.java
new file mode 100644
index 0000000..03cb07b
--- /dev/null
+++ b/src/main/Main.java
@@ -0,0 +1,45 @@
+package main;
+
+import javafx.application.Application;
+import javafx.fxml.FXMLLoader;
+import javafx.scene.Parent;
+import javafx.scene.Scene;
+import javafx.stage.Modality;
+import javafx.stage.Stage;
+import javafx.stage.StageStyle;
+import main.ui.GEarthController;
+
+import java.util.Arrays;
+
+// run as root issue Invalid MIT-MAGIC-COOKIE-1 key fix: https://stackoverflow.com/questions/48139447/invalid-mit-magic-cookie-1-key
+
+public class Main extends Application {
+
+    @Override
+    public void start(Stage primaryStage) throws Exception{
+
+        FXMLLoader loader = new FXMLLoader(GEarthController.class.getResource("G-Earth.fxml"));
+        Parent root = loader.load();
+
+        GEarthController companion = loader.getController();
+        companion.setStage(primaryStage);
+
+        primaryStage.setResizable(false);
+        //primaryStage.initStyle(StageStyle.UNDECORATED);
+        primaryStage.setTitle("G-Earth");
+        primaryStage.setScene(new Scene(root, 620, 295));
+        primaryStage.show();
+
+        primaryStage.getScene().getStylesheets().add(GEarthController.class.getResource("bootstrap3.css").toExternalForm());
+
+        primaryStage.setOnCloseRequest( event -> {
+            companion.abort();
+        });
+
+    }
+
+
+    public static void main(String[] args) {
+        launch(args);
+    }
+}
diff --git a/src/main/OSValidator.java b/src/main/OSValidator.java
new file mode 100644
index 0000000..913efdf
--- /dev/null
+++ b/src/main/OSValidator.java
@@ -0,0 +1,54 @@
+package main;
+
+public class OSValidator {
+
+    private static String OS = System.getProperty("os.name").toLowerCase();
+
+    public static void main(String[] args) {
+
+        System.out.println(OS);
+
+        if (isWindows()) {
+            System.out.println("This is Windows");
+        } else if (isMac()) {
+            System.out.println("This is Mac");
+        } else if (isUnix()) {
+            System.out.println("This is Unix or Linux");
+        } else if (isSolaris()) {
+            System.out.println("This is Solaris");
+        } else {
+            System.out.println("Your OS is not support!!");
+        }
+    }
+
+    public static boolean isWindows() {
+        return (OS.contains("win"));
+    }
+
+    public static boolean isMac() {
+        return (OS.contains("mac"));
+    }
+
+    public static boolean isUnix() {
+        return (OS.contains("nix") || OS.contains("nux") || OS.indexOf("aix") > 0);
+    }
+
+    public static boolean isSolaris() {
+        return (OS.contains("sunos"));
+    }
+
+    public static String getOS() {
+        if (isWindows()) {
+            return "win";
+        } else if (isMac()) {
+            return "osx";
+        } else if (isUnix()) {
+            return "uni";
+        } else if (isSolaris()) {
+            return "sol";
+        } else {
+            return "err";
+        }
+    }
+
+}
diff --git a/src/main/irrelevant/Timer.java b/src/main/irrelevant/Timer.java
new file mode 100644
index 0000000..8792cf4
--- /dev/null
+++ b/src/main/irrelevant/Timer.java
@@ -0,0 +1,11 @@
+package main.irrelevant;
+
+public class Timer {
+    private long    time0 = System.nanoTime(), time1 = time0;
+    private boolean ended = false;
+    public void     start() { time0 = System.nanoTime(); ended = false; }
+    public void     end() { time1 = System.nanoTime(); ended = true; }
+    public double   delta() {
+        if ( ! ended) { end(); }
+        return 1e-6 * (time1 - time0); }
+}
\ No newline at end of file
diff --git a/src/main/protocol/HConnection.java b/src/main/protocol/HConnection.java
new file mode 100644
index 0000000..a5b3319
--- /dev/null
+++ b/src/main/protocol/HConnection.java
@@ -0,0 +1,399 @@
+package main.protocol;
+
+import main.OSValidator;
+import main.protocol.packethandler.Handler;
+import main.protocol.packethandler.IncomingHandler;
+import main.protocol.packethandler.OutgoingHandler;
+import sun.plugin2.util.SystemUtil;
+
+import java.io.*;
+import java.net.InetAddress;
+import java.net.ServerSocket;
+import java.net.Socket;
+import java.net.UnknownHostException;
+import java.util.ArrayList;
+import java.util.List;
+
+public class HConnection {
+
+    public enum State {
+        NOT_CONNECTED,
+        PREPARING,          // DOMAIN AND PORT BEEN PASSED
+        PREPARED,           // FOUND IP ADDRESS OF DOMAIN
+        WAITING_FOR_CLIENT, // WAITING FOR CORRECT TCP CONNECTION TO BE SET UP
+        CONNECTED           // CONNECTED
+    }
+
+    private static final String hostsFileLocation;
+    static {
+        if (OSValidator.isWindows()) hostsFileLocation = System.getenv("WinDir") + "\\system32\\drivers\\etc\\hosts";
+        else hostsFileLocation = "/etc/hosts"; // confirmed location on linux & mac
+    }
+
+    private volatile boolean hostFileEdited = false;
+    private volatile Object[] trafficListeners = {new ArrayList<TrafficListener>(), new ArrayList<TrafficListener>(), new ArrayList<TrafficListener>()};
+    private volatile List<StateChangeListener> stateChangeListeners = new ArrayList<>();
+    private volatile State state = State.NOT_CONNECTED;
+    private volatile String input_domain = null;        // given string representation
+
+    private volatile String actual_domain;              // actual ip representation
+    private volatile int port = -1;
+
+    private volatile ServerSocket proxy;
+    private volatile Handler inHandler = null;
+    private volatile Handler outHandler = null;
+
+    public final static boolean DEBUG = false;
+
+    public State getState() {
+        return state;
+    }
+    private String detourIP() {
+        return "127.0.0.1";
+    }
+
+    public void prepare(String domain, int port) {
+        setState(State.PREPARING);
+
+        this.actual_domain = domain;
+        this.port = port;
+
+        if (hostFileEdited)	{
+            removeFromHostsFile(detourIP() + " " + domain);
+        }
+
+        try {
+            InetAddress address = InetAddress.getByName(domain);
+            actual_domain = address.getHostAddress();
+            if (DEBUG) System.out.println("found dom:" + actual_domain);
+            input_domain = domain;
+            setState(State.PREPARED);
+
+        } catch (UnknownHostException e) {
+            e.printStackTrace();
+            setState(State.NOT_CONNECTED);
+        }
+    }
+    public void start() throws IOException	{
+        if (state == State.PREPARED)	{
+            if (DEBUG) System.out.println("waiting for client on port: " + port);
+
+            setState(State.WAITING_FOR_CLIENT);
+            if (!hostFileEdited)	{
+                addToHostsFile(detourIP() + " " + input_domain);
+            }
+
+            proxy = new ServerSocket(port);
+
+            try  {
+                while ((state == State.WAITING_FOR_CLIENT) && !proxy.isClosed())	{
+                    try {
+                        Socket client = proxy.accept();
+                        if (DEBUG) System.out.println("accepted a proxy");
+                        new Thread(() -> {
+                            try {
+                                startProxyThread(client);
+                            } catch (InterruptedException | IOException e) {
+                                // TODO Auto-generated catch block
+                                e.printStackTrace();
+                            }
+                        }).start();
+
+
+                    } catch (IOException e1) {
+                        // TODO Auto-generated catch block
+                        //e1.printStackTrace();
+                    }
+                }
+            } catch (Exception e) {
+                e.printStackTrace();
+            }
+
+            if (DEBUG) System.out.println("done waiting for clients with: " + this.state );
+        }
+    }
+    private void startProxyThread(Socket client) throws InterruptedException, UnknownHostException, IOException	{
+        final boolean[] datastream = new boolean[1];
+
+        Socket habbo_server = new Socket(actual_domain, port);
+
+        OutputStream client_out = client.getOutputStream();
+        InputStream client_in = client.getInputStream();
+        OutputStream habbo_server_out = habbo_server.getOutputStream();
+        InputStream habbo_server_in = habbo_server.getInputStream();
+
+        if (DEBUG) System.out.println(habbo_server.getLocalAddress().getHostAddress() + ": " + habbo_server.getLocalPort());
+
+        final boolean[] aborted = new boolean[1];
+
+        // wachten op data van client
+        new Thread(() -> {
+            try {
+                OutgoingHandler handler = new OutgoingHandler(habbo_server_out);
+
+                while (!client.isClosed() && (state == State.WAITING_FOR_CLIENT || state == State.CONNECTED)) {
+                    byte[] buffer;
+                    while (client_in.available() > 0)	{
+                        client_in.read(buffer = new byte[client_in.available()]);
+
+                        handler.act(buffer, trafficListeners);
+                        if (!datastream[0] && handler.isDataStream())	{
+                            datastream[0] = true;
+                            setState(State.CONNECTED);
+                            onConnect();
+
+                            outHandler = handler;
+                            //client_outputStream = client_out;
+                            //server_outputStream = habbo_server_out;
+                        }
+
+                    }
+                    Thread.sleep(1);
+
+                }
+            }
+            catch (IOException | InterruptedException e) {
+                e.printStackTrace();
+            }
+            finally {
+                if (DEBUG) System.out.println("abortclient");
+                try {
+                    if (habbo_server_out != null) habbo_server_out.close();
+                    if (habbo_server_in != null) habbo_server_in.close();
+                    if (client_in != null) client_in.close();
+                    if (client_out != null) client_out.close();
+                    if (habbo_server != null && !habbo_server.isClosed()) habbo_server.close();
+                    if (client != null && !client.isClosed()) client.close();
+                    aborted[0] = true;
+                } catch (IOException e) {
+                    e.printStackTrace();
+                }
+                if (datastream[0]) {
+                    setState(State.NOT_CONNECTED);
+                    outHandler = null;
+                    inHandler = null;
+                };
+            }
+        }).start();
+        // wachten op data van server
+        new Thread(() -> {
+            try {
+                IncomingHandler handler = new IncomingHandler(client_out);
+
+                while (!habbo_server.isClosed() && (state == State.CONNECTED || state == State.WAITING_FOR_CLIENT)) {
+                    byte[] buffer;
+                    while (habbo_server_in.available() > 0) {
+                        habbo_server_in.read(buffer = new byte[habbo_server_in.available()]);
+                        if (!handler.isDataStream() && datastream[0]) {
+                            handler.setAsDataStream();
+                            inHandler = handler;
+                        }
+                        handler.act(buffer, trafficListeners);
+                    }
+                    Thread.sleep(1);
+                }
+            } catch (IOException | InterruptedException e) {
+                e.printStackTrace();
+            } finally {
+                try {
+                    if (habbo_server_out != null) habbo_server_out.close();
+                    if (habbo_server_in != null) habbo_server_in.close();
+                    if (client_in != null) client_in.close();
+                    if (client_out != null) client_out.close();
+                    if (!habbo_server.isClosed()) habbo_server.close();
+                    if (!client.isClosed()) client.close();
+                    aborted[0] = true;
+                } catch (IOException e) {
+                    e.printStackTrace();
+                }
+            }
+        }).start();
+
+        while(!aborted[0])
+        {
+            Thread.sleep(50);
+        }
+
+        try	{
+            if (!habbo_server.isClosed()) habbo_server.close();
+            if (!client.isClosed()) client.close();
+            if (DEBUG) System.out.println("STOP");
+        }
+        catch (IOException e) {
+            e.printStackTrace();
+        }
+    }
+    private void onConnect()	{
+        if (hostFileEdited)	{
+            removeFromHostsFile(detourIP() + " " + input_domain);
+        }
+
+        if (proxy != null && !proxy.isClosed())	{
+            try {
+                proxy.close();
+            } catch (IOException e) {
+                // TODO Auto-generated catch block
+                e.printStackTrace();
+            }
+        }
+    }
+    public void abort()	{
+        if (hostFileEdited)	{
+            removeFromHostsFile(detourIP() + " " + input_domain);
+        }
+        port = -1;
+        setState(State.NOT_CONNECTED);
+        actual_domain = null;
+        if (proxy != null && !proxy.isClosed())	{
+            try {
+                proxy.close();
+            } catch (IOException e) {
+                // TODO Auto-generated catch block
+                e.printStackTrace();
+            }
+        }
+    }
+
+    private void addToHostsFile(String text)	{
+        if (DEBUG) System.out.println("try add hostsfile: " + text);
+        try
+        {
+            ArrayList<String> lines = new ArrayList<String>();
+            File f1 = new File(hostsFileLocation);
+            FileReader fr = new FileReader(f1);
+            BufferedReader br = new BufferedReader(fr);
+            String line = null;
+            boolean containmmm = false;
+            while ((line = br.readLine()) != null)
+            {
+                if (line.equals(text))
+                    containmmm = true;
+                lines.add(line);
+
+            }
+            fr.close();
+            br.close();
+
+            FileWriter fw = new FileWriter(f1);
+            BufferedWriter out = new BufferedWriter(fw);
+
+            if (!containmmm)	{
+                out.write(text);
+            }
+
+            for (int i = 0; i < lines.size(); i++)	{
+                out.write("\n"+ lines.get(i));
+            }
+
+            out.flush();
+            out.close();
+            hostFileEdited = true;
+        }
+        catch (Exception ex)
+        {
+            ex.printStackTrace();
+        }
+    }
+    private void removeFromHostsFile(String text)	{
+        try
+        {
+            if (DEBUG) System.out.println("try remove hostsfile: " + text);
+            ArrayList<String> lines = new ArrayList<String>();
+            File f1 = new File(hostsFileLocation);
+            FileReader fr = new FileReader(f1);
+            BufferedReader br = new BufferedReader(fr);
+            String line = null;
+            while ((line = br.readLine()) != null)
+            {
+                if (!line.contains(text))
+                    lines.add(line);
+
+            }
+            fr.close();
+            br.close();
+
+            FileWriter fw = new FileWriter(f1);
+            BufferedWriter out = new BufferedWriter(fw);
+
+            for (int i = 0; i < lines.size(); i++)	{
+                out.write(lines.get(i));
+                if (i != lines.size() - 1) out.write("\n");
+            }
+            out.flush();
+            out.close();
+            hostFileEdited = false;
+        }
+        catch (Exception ex)
+        {
+            ex.printStackTrace();
+        }
+    }
+
+
+    private void setState(State state) {
+        if (state != this.state) {
+            State buffer = this.state;
+            this.state = state;
+            for (StateChangeListener listener : stateChangeListeners) {
+                listener.stateChanged(buffer, state);
+            }
+        }
+
+    }
+
+    /**
+     * 3 orders:
+     * 0 = before modification  ¹
+     * 1 = modification
+     * 2 = after modification   ¹
+     *
+     * ¹don't modificate (block, replace)
+     */
+    public void addTrafficListener(int order, TrafficListener listener) {
+        ((List<TrafficListener>)trafficListeners[order]).add(listener);
+    }
+    public void removeTrafficListener(TrafficListener listener) {
+        ((List<TrafficListener>)trafficListeners[0]).remove(listener);
+        ((List<TrafficListener>)trafficListeners[1]).remove(listener);
+        ((List<TrafficListener>)trafficListeners[2]).remove(listener);
+    }
+
+    public void addStateChangeListener(StateChangeListener listener) {
+        stateChangeListeners.add(listener);
+    }
+    public void removeStateChangeListener(StateChangeListener listener) {
+        stateChangeListeners.remove(listener);
+    }
+
+    public int getPort() {
+        return port;
+    }
+    public String getHost() {
+        return actual_domain;
+    }
+    public String getDomain() { return input_domain; }
+
+
+    public boolean sendToClient(HPacket message) {
+        if (inHandler == null) return false;
+        new Thread(() -> inHandler.sendToStream(message.toBytes())).start();
+        return true;
+    }
+    public boolean sendToServer(HPacket message) {
+        if (outHandler == null) return false;
+        outHandler.sendToStream(message.toBytes());
+        return false;
+    }
+
+    public void sendToClientAsync(HPacket message) {
+        new Thread(() -> {
+            sendToClient(message);
+        }).start();
+    }
+    public void sendToServerAsync(HPacket message) {
+        new Thread(() -> {
+            sendToServer(message);
+        }).start();
+    }
+
+}
diff --git a/src/main/protocol/HMessage.java b/src/main/protocol/HMessage.java
new file mode 100644
index 0000000..832619d
--- /dev/null
+++ b/src/main/protocol/HMessage.java
@@ -0,0 +1,41 @@
+package main.protocol;
+
+public class HMessage {
+
+    public enum Side {
+        TOSERVER,
+        TOCLIENT
+    }
+
+    private HPacket hPacket;
+    private Side side;
+    private int index;
+
+    private boolean isBlocked;
+
+
+    public HMessage(HPacket packet, Side side, int index) {
+        this.side = side;
+        this.hPacket = packet;
+        this.index = index;
+        isBlocked = false;
+    }
+
+    public void setBlocked(boolean block) {
+        isBlocked = block;
+    }
+    public boolean isBlocked() {
+        return isBlocked;
+    }
+
+    public HPacket getPacket() {
+        return hPacket;
+    }
+    public Side getDestination() {
+        return side;
+    }
+
+    public boolean isCorrupted() {
+        return hPacket.isCorrupted();
+    }
+}
diff --git a/src/main/protocol/HPacket.java b/src/main/protocol/HPacket.java
new file mode 100644
index 0000000..a47dcdd
--- /dev/null
+++ b/src/main/protocol/HPacket.java
@@ -0,0 +1,498 @@
+package main.protocol;
+
+import java.io.UnsupportedEncodingException;
+import java.nio.ByteBuffer;
+import java.nio.charset.StandardCharsets;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.HashSet;
+import java.util.Set;
+
+public class HPacket {
+    // te komen: toExpressions (+impl. expressies)
+    private boolean isEdited = false;
+    private byte[] packetInBytes;
+    private int readIndex = 6;
+
+    public HPacket(byte[] packet)	{
+        packetInBytes = packet.clone();
+    }
+    public HPacket(String packet)	{
+        packetInBytes = fromStringToBytes(fromExpressionToString(packet));
+    }
+    public HPacket(int header) {
+        packetInBytes = new byte[]{0,0,0,4,0,0};
+        replaceUShort(4, header);
+    }
+    public HPacket(int header, byte[] bytes) {
+        packetInBytes = new byte[4];
+        appendBytes(bytes);
+    }
+
+    public String toString()	{
+        String teststring = "";
+        for (byte x : packetInBytes)	{
+            if ((x < 32 && x >= 0) || x < -96 || x == 93 || x == 91 || x == 125 || x == 123 || x == 127 )
+                teststring+="["+((((int)x) + 256 ) % 256)+"]";
+            else
+                try {
+                    teststring+=new String(new byte[]{x}, "ISO-8859-1"); //"ISO-8859-1"
+                } catch (UnsupportedEncodingException e) {
+                    e.printStackTrace();
+                }
+        }
+        return teststring;
+    }
+
+
+    /**
+     * returns "" if invalid expression, replaces all {} occurences except {l}
+     * @return
+     */
+    private static String fromExpressionToString(String input) {
+        try {
+            int i = 0;
+            char[] asChararray = input.toCharArray();
+            StringBuilder newString = new StringBuilder();
+            if (input.startsWith("{l}")) {
+                newString.append("{l}");
+                i = 3;
+            }
+
+            while (i < input.length()) {
+                if (asChararray[i] != '{') {
+                    newString.append(asChararray[i]);
+                    i++;
+                }
+                else {
+                    i++;
+                    StringBuilder typeBuilder = new StringBuilder();
+                    while (i < input.length() && asChararray[i] != ':') {
+                        typeBuilder.append(asChararray[i]);
+                        i++;
+                    }
+                    if (i == input.length()) throw new Exception();
+                    String type = typeBuilder.toString();
+                    i++;
+
+                    StringBuilder inhoudBuilder = new StringBuilder();
+                    while (i < input.length() && asChararray[i] != '}') {
+                        inhoudBuilder.append(asChararray[i]);
+                        i++;
+                    }
+                    if (i == input.length()) throw new Exception();
+                    String inhoud = inhoudBuilder.toString();
+                    i++;
+
+                    if (type.equals("u")) {
+                        int probs = Integer.parseInt(inhoud);
+                        if (probs < 0 || probs >= 256 * 256) throw new Exception();
+                        newString.append("[").append(probs / 256).append("][").append(probs % 256).append("]");
+                    }
+                    else if (type.equals("i")) {
+                        ByteBuffer b = ByteBuffer.allocate(4).putInt(Integer.parseInt(inhoud));
+                        newString.append(new HPacket(b.array()).toString());
+                    }
+                    else if (type.equals("b")) { // could be a byte or a boolean, no one cares
+                        if (inhoud.toLowerCase().equals("true") || inhoud.toLowerCase().equals("false")) {
+                            newString.append(inhoud.toLowerCase().equals("true") ? "[1]" : "[0]");
+                        }
+                        else {
+                            int probs = Integer.parseInt(inhoud);
+                            if (probs < 0 || probs >= 256) throw new Exception();
+                            newString.append("[").append(probs).append("]");
+                        }
+                    }
+                    else if (type.equals("s")) {
+                        int probs = inhoud.length();
+                        if (probs < 0 || probs >= 256 * 256) throw new Exception();
+                        newString.append("[").append(probs / 256).append("][").append(probs % 256).append("]");
+
+                        byte[] bts = inhoud.getBytes(StandardCharsets.ISO_8859_1);
+                        for (int j = 0; j < inhoud.length(); j++) {
+                            newString.append("[").append((((int)(bts[j])) + 256) % 256).append("]");
+                        }
+                    }
+                    else throw new Exception();
+
+                }
+            }
+            return newString.toString();
+        }
+        catch( Exception e) {
+            return "";
+        }
+    }
+    private static byte[] fromStringToBytes(String curstring)	{
+        try	{
+            ArrayList<Byte> bytes = new ArrayList<>();
+            int index = 0;
+            char[] asChararray = curstring.toCharArray();
+            byte[] asliteralbytes = curstring.getBytes("ISO-8859-1");
+
+            boolean startWithLength = false;
+            if (curstring.startsWith("{l}")) {
+                startWithLength = true;
+                index = 3;
+            }
+
+            while (index < curstring.length()) {
+                if (asChararray[index] == '[') {
+                    int l = 2;
+                    while (index + l < curstring.length() && asChararray[index + l] != ']') l++;
+                    if (index + l == curstring.length()) throw new Exception();
+
+                    int result = Integer.parseInt(curstring.substring(index + 1, index + l));
+                    if (result > 255 || result < 0) throw new Exception();
+
+                    byte rl = result > 127 ? (byte)(result - 256) : (byte)result ;
+
+                    bytes.add(rl);
+                    index = index + 1 + l;
+                }
+                else {
+                    bytes.add(asliteralbytes[index]);
+                    index++;
+                }
+            }
+
+            byte[] result;
+            if (startWithLength) {
+                result = new byte[bytes.size() + 4];
+
+                ByteBuffer b = ByteBuffer.allocate(4);
+                b.putInt(bytes.size());
+                for (int i = 0; i < 4; i++) {
+                    result[i] = b.array()[i];
+                }
+                for (int i = 0; i < bytes.size(); i++) {
+                    result[i + 4] = bytes.get(i);
+                }
+            }
+            else {
+                result = new byte[bytes.size()];
+                for (int i = 0; i < bytes.size(); i++) {
+                    result[i] = bytes.get(i);
+                }
+            }
+
+            return result;
+        }
+        catch (Exception e){}
+        return new byte[0];
+    }
+
+    public byte[] toBytes()		{
+        return packetInBytes;
+    }
+
+    public int getReadIndex()	{
+        return readIndex;
+    }
+    public void setReadIndex(int number)	{
+        readIndex = number;
+    }
+
+    public boolean isCorrupted()	{
+
+        if (packetInBytes.length >= 6)	{
+            if (length() == getBytesLength() - 4)	{
+                return false;
+            }
+        }
+        return true;
+    }
+
+    public byte readByte()	{
+        readIndex++;
+        return packetInBytes[readIndex - 1];
+    }
+    public byte readByte(int index)	{
+        return packetInBytes[index];
+    }
+
+    public short readShort()	{
+        byte[] btarray = new byte[]{packetInBytes[readIndex], packetInBytes[readIndex + 1]};
+        readIndex +=2;
+        return java.nio.ByteBuffer.wrap(btarray).getShort();
+    }
+    public short readShort(int index)	{
+        byte[] btarray = new byte[]{packetInBytes[index], packetInBytes[index + 1]};
+        return java.nio.ByteBuffer.wrap(btarray).getShort();
+    }
+    public int readUshort() {
+        byte[] btarray = new byte[]{0, 0, packetInBytes[readIndex], packetInBytes[readIndex + 1]};
+        readIndex +=2;
+        return java.nio.ByteBuffer.wrap(btarray).getInt();
+    }
+    public int readUshort(int index) {
+        byte[] btarray = new byte[]{0, 0, packetInBytes[index], packetInBytes[index + 1]};
+        return java.nio.ByteBuffer.wrap(btarray).getInt();
+    }
+
+    public int headerId()	{
+        return readUshort(4);
+    }
+
+    public int readInteger(){
+        byte[] btarray = new byte[]{packetInBytes[readIndex], packetInBytes[readIndex + 1], packetInBytes[readIndex + 2], packetInBytes[readIndex + 3]};
+        readIndex +=4;
+        return java.nio.ByteBuffer.wrap(btarray).getInt();
+    }
+    public int readInteger(int index)	{
+        byte[] btarray = new byte[]{packetInBytes[index], packetInBytes[index + 1], packetInBytes[index + 2], packetInBytes[index + 3]};
+        return java.nio.ByteBuffer.wrap(btarray).getInt();
+    }
+
+    public int length()	{
+        return readInteger(0);
+    }
+    public int getBytesLength()	{
+        return packetInBytes.length;
+    }
+
+    public byte[] readBytes(int length)	{
+        byte[] newbytes = new byte[length];
+        for (int i = 0; i < (length); i++)	{
+            newbytes[i] = packetInBytes[i+ readIndex];
+        }
+        readIndex +=length;
+        return newbytes;
+    }
+    public byte[] readBytes(int length, int index)	{
+        byte[] newbytes = new byte[length];
+        for (int i = 0; i < (length); i++)	{
+            newbytes[i] = packetInBytes[i+index];
+        }
+        return newbytes;
+    }
+
+    public long readLong()	{
+        byte[] btarray = readBytes(8);
+        return java.nio.ByteBuffer.wrap(btarray).getLong();
+    }
+    public long readLong(int index)	{
+        byte[] btarray = readBytes(8, index);
+        return java.nio.ByteBuffer.wrap(btarray).getLong();
+    }
+
+    public String readString()	{
+        int length = readUshort();
+        byte[] x = new byte[length];
+        for (int i = 0; i < x.length; i++)	x[i] = readByte();
+
+        try {
+            return new String(x, "ISO-8859-1");
+        } catch (UnsupportedEncodingException e) {	}
+
+        return null;
+    }
+    public String readString(int index)	{
+        int length = readUshort(index);
+        index+=2;
+        byte[] x = new byte[length];
+        for (int i = 0; i < x.length; i++)	{ x[i] = readByte(index); index++;	}
+
+        try {
+            return new String(x, "ISO-8859-1");
+        } catch (UnsupportedEncodingException e) {	}
+
+        return null;
+    }
+
+    public boolean readBoolean()	{
+        return (readByte() != 0);
+    }
+    public boolean readBoolean(int index)	{
+        return (readByte(index) != 0);
+    }
+
+
+    public HPacket replaceBoolean(int index, boolean b) {
+        isEdited = true;
+        packetInBytes[index] = b ? (byte)1 : (byte)0;
+        return this;
+    }
+    public HPacket replaceInt(int index, int i) {
+        isEdited = true;
+        ByteBuffer b = ByteBuffer.allocate(4).putInt(i);
+        for (int j = 0; j < 4; j++) {
+            packetInBytes[index + j] = b.array()[j];
+        }
+        return this;
+    }
+    public HPacket replaceByte(int index, byte b) {
+        isEdited = true;
+        packetInBytes[index] = b;
+        return this;
+    }
+    public HPacket replaceBytes(int index, byte[] bytes) {
+        isEdited = true;
+        int i = 0;
+        while (index + i < packetInBytes.length && i < bytes.length) {
+            replaceByte(index + i, bytes[i]);
+            i++;
+        }
+//
+//        if (i < bytes.length) {
+//            appendBytes(Arrays.copyOfRange(bytes, i, bytes.length));
+//            fixLength();
+//        }
+        return this;
+    }
+    public HPacket replaceUShort(int index, int ushort) {
+        isEdited = true;
+        ByteBuffer b = ByteBuffer.allocate(4).putInt(ushort);
+        packetInBytes[index] = b.array()[2];
+        packetInBytes[index + 1] = b.array()[3];
+        return this;
+    }
+    public HPacket replaceShort(int index, short s) {
+        isEdited = true;
+        ByteBuffer b = ByteBuffer.allocate(2).putShort(s);
+        packetInBytes[index] = b.array()[0];
+        packetInBytes[index + 1] = b.array()[1];
+        return this;
+    }
+    public HPacket replaceString(int index, String s) {
+        isEdited = true;
+        byte[] sbytes = s.getBytes(StandardCharsets.ISO_8859_1);
+        int mover = s.length() - readUshort(index);
+
+        if (mover != 0) {
+            byte[] newPacket = Arrays.copyOf(packetInBytes, packetInBytes.length + mover);
+
+            if (mover > 0) {
+                int i = newPacket.length - 1;
+                while (i > index + mover + 2) {
+                    newPacket[i] = packetInBytes[i - mover];
+                    i--;
+                }
+            }
+            else {
+                int i = index + 2 + s.length();
+                while (i < newPacket.length) {
+                    newPacket[i] = packetInBytes[i - mover];
+                    i++;
+                }
+            }
+
+            packetInBytes = newPacket;
+            fixLength();
+        }
+
+        replaceUShort(index, s.length());
+        for (int i = 0; i < s.length(); i++) {
+            packetInBytes[index + 2 + i] = sbytes[i];
+        }
+        return this;
+    }
+
+    //returns if done r not
+    public boolean replaceFirstString(String oldS, String newS) {
+        int i = 6;
+        while (i < packetInBytes.length - 1 - oldS.length()) {
+            if (readUshort(i) == oldS.length() && readString(i).equals(oldS)) {
+                replaceString(i, newS);
+                return true;
+            }
+            i++;
+        }
+        return false;
+    }
+    public HPacket replaceAllString(String oldS, String newS) {
+        while (replaceFirstString(oldS, newS)) {}
+
+        return this;
+    }
+
+
+    public HPacket appendInt(int i) {
+        isEdited = true;
+        packetInBytes = Arrays.copyOf(packetInBytes, packetInBytes.length + 4);
+        ByteBuffer byteBuffer = ByteBuffer.allocate(4).putInt(i);
+        for (int j = 0; j < 4; j++) {
+            packetInBytes[packetInBytes.length - 4 + j] = byteBuffer.array()[j];
+        }
+        fixLength();
+        return this;
+    }
+    public HPacket appendByte(byte b) {
+        isEdited = true;
+        packetInBytes = Arrays.copyOf(packetInBytes, packetInBytes.length + 1);
+        packetInBytes[packetInBytes.length - 1] = b;
+        fixLength();
+        return this;
+    }
+    public HPacket appendBytes(byte[] bytes) {
+        isEdited = true;
+        packetInBytes = Arrays.copyOf(packetInBytes, packetInBytes.length + bytes.length);
+        for (int i = 0; i < bytes.length; i++) {
+            packetInBytes[packetInBytes.length - bytes.length + i] = bytes[i];
+        }
+        fixLength();
+        return this;
+    }
+    public HPacket appendBoolean(boolean b) {
+        isEdited = true;
+        appendByte((byte)(b ? 1 : 0));
+        return this;
+    }
+    public HPacket appendUShort(int ushort) {
+        isEdited = true;
+        packetInBytes = Arrays.copyOf(packetInBytes, packetInBytes.length + 2);
+        ByteBuffer byteBuffer = ByteBuffer.allocate(4).putInt(ushort);
+        for (int j = 2; j < 4; j++) {
+            packetInBytes[packetInBytes.length - 4 + j] = byteBuffer.array()[j];
+        }
+        fixLength();
+        return this;
+    }
+    public HPacket appendShort(short s) {
+        isEdited = true;
+        packetInBytes = Arrays.copyOf(packetInBytes, packetInBytes.length + 2);
+        ByteBuffer byteBuffer = ByteBuffer.allocate(2).putShort(s);
+        for (int j = 0; j < 2; j++) {
+            packetInBytes[packetInBytes.length - 2 + j] = byteBuffer.array()[j];
+        }
+        fixLength();
+        return this;
+    }
+    public HPacket appendString(String s) {
+        isEdited = true;
+        appendUShort(s.length());
+        appendBytes(s.getBytes(StandardCharsets.ISO_8859_1));
+        return this;
+    }
+
+    public HPacket removeFrom(int index) {
+        return removeRange(index, packetInBytes.length - index);
+    }
+    public HPacket removeRange(int index, int length) {
+        isEdited = true;
+        for (int i = index; i < packetInBytes.length - length; i++) {
+            packetInBytes[i] = packetInBytes[i + length];
+        }
+        packetInBytes = Arrays.copyOf(packetInBytes, packetInBytes.length - length);
+        fixLength();
+        return this;
+    }
+
+    public boolean isReplaced() {
+        return isEdited;
+    }
+
+    private void fixLength() {
+        boolean remember = isEdited;
+        replaceInt(0, packetInBytes.length - 4);
+        isEdited = remember;
+    }
+
+    public static void main(String[] args) {
+        HPacket packet = new HPacket("[0][0][0]4[15] [0]!PRODUCTION-201802201205-141713395[0][5]FLASH[0][0][0][1][0][0][0][0]");
+        packet.replaceFirstString("FLASH", "HTML");
+        System.out.println(packet);
+
+    }
+
+}
\ No newline at end of file
diff --git a/src/main/protocol/StateChangeListener.java b/src/main/protocol/StateChangeListener.java
new file mode 100644
index 0000000..6c2fada
--- /dev/null
+++ b/src/main/protocol/StateChangeListener.java
@@ -0,0 +1,7 @@
+package main.protocol;
+
+public interface StateChangeListener {
+
+    void stateChanged(HConnection.State oldState, HConnection.State newState);
+
+}
diff --git a/src/main/protocol/TrafficListener.java b/src/main/protocol/TrafficListener.java
new file mode 100644
index 0000000..a369119
--- /dev/null
+++ b/src/main/protocol/TrafficListener.java
@@ -0,0 +1,7 @@
+package main.protocol;
+
+public interface TrafficListener {
+
+    void onCapture(HMessage message);
+
+}
diff --git a/src/main/protocol/crypto/RC4.java b/src/main/protocol/crypto/RC4.java
new file mode 100644
index 0000000..1c67547
--- /dev/null
+++ b/src/main/protocol/crypto/RC4.java
@@ -0,0 +1,215 @@
+package main.protocol.crypto;
+/*
+ * Copyright (C) 2003 Clarence Ho (clarence@clarenceho.net)
+ * All rights reserved.
+ *
+ * Redistribution and use of this software for non-profit, educational,
+ * or persoanl purposes, in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the author nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * In case of using this software for other purposes not stated above,
+ * please conact Clarence Ho (clarence@clarenceho.net) for permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY CLARENCE HO "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR
+ * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
+ * THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+import main.protocol.HPacket;
+
+/**
+ * This is a simple implementation of the RC4 (tm) encryption algorithm.  The
+ * author implemented this class for some simple applications
+ * that don't need/want/require the Sun's JCE framework.
+ * <p>
+ * But if you are looking for encryption algorithms for a
+ * full-blown application,
+ * it would be better to stick with Sun's JCE framework.  You can find
+ * a *free* JCE implementation with RC4 (tm) at
+ * Cryptix (http://www.cryptix.org/).
+ * <p>
+ * Note that RC4 (tm) is a trademark of RSA Data Security, Inc.
+ * Also, if you are within USA, you may need to acquire licenses from
+ * RSA to use RC4.
+ * Please check your local law.  The author is not
+ * responsible for any illegal use of this code.
+ * <p>
+ * @author  Clarence Ho
+ */
+public class RC4 {
+
+    private byte state[] = new byte[256];
+    private int x;
+    private int y;
+
+    /**
+     * Initializes the class with a string key. The length
+     * of a normal key should be between 1 and 2048 bits.  But
+     * this method doens't check the length at all.
+     *
+     * @param key   the encryption/decryption key
+     */
+    public RC4(String key) throws NullPointerException {
+        this(key.getBytes());
+    }
+
+    /**
+     * Initializes the class with a byte array key.  The length
+     * of a normal key should be between 1 and 2048 bits.  But
+     * this method doens't check the length at all.
+     *
+     * @param key   the encryption/decryption key
+     */
+    public RC4(byte[] key) throws NullPointerException {
+
+        for (int i=0; i < 256; i++) {
+            state[i] = (byte)i;
+        }
+
+        x = 0;
+        y = 0;
+
+        int index1 = 0;
+        int index2 = 0;
+
+        byte tmp;
+
+        if (key == null || key.length == 0) {
+            throw new NullPointerException();
+        }
+
+        for (int i=0; i < 256; i++) {
+
+            index2 = ((key[index1] & 0xff) + (state[i] & 0xff) + index2) & 0xff;
+
+            tmp = state[i];
+            state[i] = state[index2];
+            state[index2] = tmp;
+
+            index1 = (index1 + 1) % key.length;
+        }
+
+
+
+    }
+
+    /**
+     * RC4 encryption/decryption.
+     *
+     * @param data  the data to be encrypted/decrypted
+     * @return the result of the encryption/decryption
+     */
+    public byte[] rc4(String data) {
+
+        if (data == null) {
+            return null;
+        }
+
+        byte[] tmp = data.getBytes();
+
+        this.rc4(tmp);
+
+        return tmp;
+    }
+
+    /**
+     * RC4 encryption/decryption.
+     *
+     * @param buf  the data to be encrypted/decrypted
+     * @return the result of the encryption/decryption
+     */
+    public byte[] rc4(byte[] buf) {
+
+        //int lx = this.x;
+        //int ly = this.y;
+
+        int xorIndex;
+        byte tmp;
+
+        if (buf == null) {
+            return null;
+        }
+
+        byte[] result = new byte[buf.length];
+
+        for (int i=0; i < buf.length; i++) {
+
+            x = (x + 1) & 0xff;
+            y = ((state[x] & 0xff) + y) & 0xff;
+
+            tmp = state[x];
+            state[x] = state[y];
+            state[y] = tmp;
+
+            xorIndex = ((state[x] &0xff) + (state[y] & 0xff)) & 0xff;
+            result[i] = (byte)(buf[i] ^ state[xorIndex]);
+        }
+
+        //this.x = lx;
+        //this.y = ly;
+
+        return result;
+    }
+
+
+    public void printKey() {
+        System.out.println(new HPacket(state).toString());
+    }
+
+    public static void main(String[] args) {
+        byte[] sharedKey = new byte[27];
+
+        RC4 p1 = new RC4(sharedKey);
+        RC4 p2 = new RC4(sharedKey);
+
+        p1.printKey();
+        p2.printKey();
+        byte[] enc = p1.rc4("hallo".getBytes());
+        System.out.println(new String(p2.rc4(enc)));
+
+        p1.printKey();
+        p2.printKey();
+
+        enc = p1.rc4("hallo".getBytes());
+        System.out.println(new String(p2.rc4(enc)));
+
+        p1.printKey();
+        p2.printKey();
+
+        enc = p1.rc4("meneeeer dit zijn echt veel meer dan 27 characters dus latne we dit even proberen".getBytes());
+        System.out.println(new String(p2.rc4(enc)));
+
+        p1.printKey();
+        p2.printKey();
+    }
+
+//    public static void main(String[] args) {
+//        byte[] plainData = "abc123".getBytes();
+//        byte[] key = "Key".getBytes();
+//        RC4 rc4 = new RC4(key);
+//        byte[] cipherData = rc4.rc4(plainData);
+//        System.out.println("加密后: " + new String(cipherData));
+//        byte[] _plainData = rc4.rc4(cipherData);
+//        System.out.println("解密后: " + new String(_plainData));
+//        System.out.println(Arrays.equals(plainData, _plainData));
+//    }
+
+}
\ No newline at end of file
diff --git a/src/main/protocol/memory/FlashClient.java b/src/main/protocol/memory/FlashClient.java
new file mode 100644
index 0000000..fb06315
--- /dev/null
+++ b/src/main/protocol/memory/FlashClient.java
@@ -0,0 +1,410 @@
+package main.protocol.memory;
+
+import main.irrelevant.Timer;
+
+import java.io.*;
+import java.lang.reflect.Array;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+
+public class FlashClient {
+
+
+    public class MemorySnippet {
+        long offset;
+        byte[] data;
+
+        public MemorySnippet(long offset, byte[] data) {
+            this.offset = offset;
+            this.data = data;
+        }
+
+        public byte[] getData() {
+            return data;
+        }
+
+        public long getOffset() {
+            return offset;
+        }
+    }
+
+    private int PID;
+    private List<long[]> maps;
+
+    public static FlashClient create() {
+        File folder = new File("/proc");
+                FlashClient client = null;
+
+        do {
+            File[] fileList = folder.listFiles();
+            for (File file : fileList) {
+                if (file.isDirectory() && MemoryUtils.stringIsNumeric(file.getName())) {
+                    String path = "/proc/" + file.getName() + "/cmdline";
+                    if (MemoryUtils.fileContainsString(path, "--ppapi-flash-args") ||
+                            MemoryUtils.fileContainsString(path, "plugin-container")) {
+                        client = new FlashClient();
+                        client.PID = Integer.parseInt(file.getName());
+                        client.maps = new ArrayList<>();
+                    }
+                }
+            }
+        } while (client == null);
+
+
+        System.out.println("* Found flashclient process: " + client.PID);
+        return client;
+    }
+    public void refreshMemoryMaps() {
+        String filename = "/proc/"+this.PID+"/maps";
+        BufferedReader reader;
+        maps = new ArrayList<>();
+
+        try {
+            reader = new BufferedReader(new FileReader(filename));
+            String line;
+
+            while ((line = reader.readLine()) != null)	{
+                String[] split = line.split("[- ]");
+                if (split[2].startsWith("rw")) {  //if (split[2].startsWith("rw")) {
+
+                    try {
+                        long start = Long.parseLong(split[0], 16);
+                        long end = Long.parseLong(split[1], 16);
+                        maps.add(new long[]{start, end});
+                    }
+                    catch (Exception e){
+                        //this is nothing really
+                    }
+
+                }
+            }
+            reader.close();
+        }
+        catch (Exception e) {
+            e.printStackTrace();
+        }
+
+        System.out.println("* Found memory maps (amount: " + maps.size() + ")");
+    }
+
+    public List<MemorySnippet> createMemorySnippetList () {
+        refreshMemoryMaps();
+        List<MemorySnippet> result = new ArrayList<>();
+
+        for (long[] map : maps) {
+            long begin = map[0];
+            long end = map[1];
+
+            MemorySnippet snippet = new MemorySnippet(begin, new byte[(int)(end - begin)] );
+            result.add(snippet);
+        }
+        return result;
+    }
+    public void fetchMemory(List<MemorySnippet> snippets) {
+        String memoryPath = "/proc/" + PID + "/mem";
+        for (MemorySnippet snippet : snippets) {
+            long begin = snippet.offset;
+            try {
+                RandomAccessFile raf = new RandomAccessFile(memoryPath, "r");
+                raf.seek(begin);
+                raf.read(snippet.getData());
+                raf.close();
+            }
+            catch (Exception e) {
+                e.printStackTrace();
+            }
+        }
+    }
+
+    /**
+     * can remove & add & edit maps of memorysnipperlist
+     */
+    public void updateMapLocationsSnippetList(List<MemorySnippet> snippets) {
+        refreshMemoryMaps();
+
+        List<MemorySnippet> list2 = new ArrayList<>();
+        List<long[]> not_added = new ArrayList<>();
+
+        // readd all maps that stayed the same
+        for (long[] map : maps) {
+            //if was in  snippetlist:
+            boolean found = false;
+            for (MemorySnippet snippet : snippets) {
+                if (snippet.offset == map[0] && snippet.offset + snippet.getData().length == map[1]) {
+                    list2.add(snippet);
+                    snippets.remove(snippet);
+                    found = true;
+                    break;
+                }
+            }
+            if (!found) {
+                not_added.add(map);
+            }
+
+        }
+
+        for (int i = 0; i < not_added.size(); i++) {
+            long[] map = not_added.get(i);
+            //find potential overlap snippet
+            MemorySnippet snippet = new MemorySnippet(map[0], new byte[(int)(map[1] - map[0])]);
+            byte[] data = snippet.getData();
+
+            for (MemorySnippet potential : snippets) {
+                //if there is overlap
+                if ((potential.offset >= map[0] && potential.offset < map[1]) ||
+                        (potential.offset + potential.getData().length >= map[0] && potential.offset + potential.getData().length< map[1]) ||
+                        (potential.offset < map[0] && potential.offset + potential.getData().length >= map[1])  ) {
+
+                    int start = Math.max((int)(potential.offset - map[0]), 0);
+                    int offset2 = -(int)(potential.offset - map[0]);
+
+                    for (int j = start; j < Math.min(map[1] - map[0], potential.getData().length - offset2); j++) {
+                        data[j] = potential.getData()[j+offset2];
+                    }
+                }
+            }
+            list2.add(snippet);
+        }
+
+        snippets.clear();
+        for (MemorySnippet snippet : list2) {
+            snippets.add(snippet);
+        }
+
+    }
+    /**
+     * creates a new memorysnippet list of data that changed (or not) from the original list with a given left&right buffer
+     */
+    public List<MemorySnippet> differentiate(List<MemorySnippet> original, boolean isChanged, int leftRightbytebuffer) {
+        //fill a new memorysnippet list with live data
+        List<MemorySnippet> upToDate = new ArrayList<>();
+        for (MemorySnippet memorySnippet : original) {
+            upToDate.add(new MemorySnippet(memorySnippet.getOffset(), new byte[memorySnippet.getData().length]));
+        }
+        fetchMemory(upToDate);
+
+        List<MemorySnippet> result = new ArrayList<>();
+
+        long totalBytes = 0;
+
+        for (int i = 0; i < original.size(); i++) {
+            long offset = original.get(i).getOffset();
+            byte[] old = original.get(i).getData();
+            byte[] curr = upToDate.get(i).getData();
+
+            if (!isChanged) {
+                // find all non-changed stuff and put in result
+                long pre = offset;
+                for (int j = 0; j < old.length; j++) {
+                    if (old[j] != curr[j]) {
+                        //calculate previous block length
+                        int len = j - ((int)(pre - offset));
+                        if (len >= leftRightbytebuffer && len > 0) {
+                            result.add(new MemorySnippet(pre, new byte[len]));
+                            totalBytes += len;
+                        }
+                        pre = offset + j + 1;
+                    }
+                }
+                int len = old.length - ((int)(pre - offset));
+                if (len >= leftRightbytebuffer && len > 0) {
+                    result.add(new MemorySnippet(pre, new byte[len]));
+                    totalBytes += len;
+                }
+            }
+            else {
+                //find all changed stuff and put result
+                long pre = offset;
+                int downCount = -1; //if downCount reaches zero, buffer should be written out
+                for (int j = 0; j < old.length; j++) {
+                    if (old[j] != curr[j]) {
+                        if (downCount <= 0) {
+                            pre = Math.max(offset, offset + j - leftRightbytebuffer);
+                        }
+                        downCount = leftRightbytebuffer;
+                    }
+                    else { downCount -= 1; }
+                    if (downCount == 0) {
+                        int len = j - ((int)(pre - offset));
+                        result.add(new MemorySnippet(pre, new byte[len]));
+                        totalBytes += len;
+                    }
+                }
+                int len = old.length - ((int)(pre - offset));
+                if (downCount > 0 && len >= leftRightbytebuffer) {
+                    result.add(new MemorySnippet(pre, new byte[len]));
+                    totalBytes += len;
+                }
+            }
+        }
+        fetchMemory(result);
+
+        System.out.println("totalbytes after diff: " + totalBytes);
+
+        return result;
+    }
+
+    //currently not being used functions:
+    List<Long> searchOffsetForByteArray(byte[] toFind) {
+        if (toFind.length == 0) return null;
+
+        System.out.println("*** Start searching for: " + new String(toFind));
+        String memoryPath = "/proc/" + PID + "/mem";
+        List<Long> results = new ArrayList<>();
+
+        Timer t = new Timer();
+        t.start();
+
+        for (long[] map : maps) {
+            long begin = map[0];
+            long end = map[1];
+            try {
+                RandomAccessFile raf = new RandomAccessFile(memoryPath, "r");
+                byte[] wholeBuffer = new byte[(int)(end - begin)];
+                raf.seek(begin);
+                raf.read(wholeBuffer);
+                raf.close();
+
+                for (int i = 0; i < wholeBuffer.length; i++) {
+
+                    int subIndex = 0;
+                    while (subIndex < toFind.length && wholeBuffer[i + subIndex] == toFind[subIndex]) subIndex++;
+
+                    if (subIndex == toFind.length) {
+                        long result = (long)i + begin;
+                        results.add(result);
+                        System.out.println("* Found match for " + new String(toFind) + " at address: " + result);
+                    }
+                }
+
+            } catch (Exception e) {
+                e.printStackTrace();
+            }
+        }
+
+        System.out.println("*** End searching for: " + new String(toFind) + " in " + t.delta() + "ms");
+        return results;
+    }
+    List<Long> searchOffsetForString(String keyString) {
+        return searchOffsetForByteArray(keyString.getBytes());
+    }
+
+    public List<String> findSharedKey (List<MemorySnippet> snippets){
+
+        byte[] bounds = "09afAF".getBytes();
+
+        List<String> results = new ArrayList<>();
+
+        int size = 54;
+
+        for (MemorySnippet snippet : snippets) {
+            int count = 0;
+            byte[] data = snippet.getData();
+            if (data.length >= size) {
+                for (int i = 0; i < data.length; i++) {
+                    byte b = data[i];
+                    if ((b >= bounds[0] && b <= bounds[1]) ||
+                            (b >= bounds[2] && b <= bounds[3]) ||
+                            (b >= bounds[4] && b <= bounds[5])) {
+                        count++;
+                    }
+                    else {
+                        count = 0;
+                    }
+                    if (count == size && (i + 1 == data.length || !((data[i+1] >= bounds[0] && data[i+1] <= bounds[1]) ||
+                            (data[i+1] >= bounds[2] && data[i+1] <= bounds[3]) ||
+                            (data[i+1] >= bounds[4] && data[i+1] <= bounds[5]))) ) {
+                        results.add(new String(Arrays.copyOfRange(data, i - size + 1, i + 1)) + " on location: " + (snippet.getOffset() + i));
+                    }
+                }
+            }
+
+        }
+        return results;
+    }
+
+    public List<String> findSharedKey2() {
+        List<MemorySnippet> memorySnippets = new ArrayList<>();
+
+        int buff = 15000000;
+
+        long verystart = maps.get(0)[0];
+        long veryend = maps.get(0)[1];
+
+        for (int i = 1; i < maps.size(); i++) {
+            long[] map = maps.get(i);
+            if (map[1] - veryend <= buff) {
+                veryend = map[1];
+            }
+            else {
+                memorySnippets.add(new MemorySnippet(verystart, new byte[(int)(veryend - verystart + buff)]));
+                verystart = maps.get(i)[0];
+                veryend = maps.get(i)[1];
+            }
+        }
+        memorySnippets.add(new MemorySnippet(verystart, new byte[(int)(veryend - verystart + buff)]));
+
+        fetchMemory(memorySnippets);
+        return findSharedKey(memorySnippets);
+    }
+
+
+    @SuppressWarnings("Duplicates")
+    public void pauseProcess() {
+        String[] args = new String[] {"kill", "-STOP", PID+""};
+        Process proc;
+        try {
+            proc = new ProcessBuilder(args).start();
+            proc.waitFor();
+            proc.destroy();
+        } catch (IOException | InterruptedException e) {
+            e.printStackTrace();
+        }
+    }
+
+    @SuppressWarnings("Duplicates")
+    public void resumeProcess()  {
+        String[] args = new String[] {"kill", "-CONT", PID+""};
+        Process proc;
+        try {
+            proc = new ProcessBuilder(args).start();
+            proc.waitFor();
+            proc.destroy();
+        } catch (IOException | InterruptedException e) {
+            e.printStackTrace();
+        }
+    }
+
+    public static void main(String[] args) throws InterruptedException {
+        FlashClient client = FlashClient.create();
+        client.refreshMemoryMaps();
+
+//        List<Long> gameHostOccurences = client.searchOffsetForString("game-nl.habbo.com");
+//        List<Long> rsaOccurences = client.searchOffsetForString("xIBlMDUyODA4YzFhYmVmNjlhMWE2MmMzOTYzOTZiODU5NTVlMmZmNTIy");
+//        List<Long> occ = client.searchOffsetForString("sirjonasxx");
+
+//        List<MemorySnippet> l = client.createMemorySnippetList();
+//        client.fetchMemory(l);
+//        Thread.sleep(1000);
+//        //what didnt change in the last 1000ms?
+//        List<MemorySnippet> l2 = client.differentiate(l, false, 0);
+//        Thread.sleep(1000);
+//        //what changed in the last 1000ms?
+//        List<MemorySnippet> l3 = client.differentiate(l2, true, 0);
+//        Thread.sleep(1000);
+//        //what didnt change in the last 1000ms?
+//        List<MemorySnippet> l4 = client.differentiate(l3, false, 0);
+//        Thread.sleep(1000);
+//        //what changed in the last 1000ms?
+//        List<MemorySnippet> l5 = client.differentiate(l4, true, 0);
+
+//        client.updateMapLocationsSnippetList(l);
+
+        List<String> res = client.findSharedKey2();
+        System.out.println(res);
+
+        System.out.println("test");
+    }
+
+}
diff --git a/src/main/protocol/memory/MemoryUtils.java b/src/main/protocol/memory/MemoryUtils.java
new file mode 100644
index 0000000..0a5d0a3
--- /dev/null
+++ b/src/main/protocol/memory/MemoryUtils.java
@@ -0,0 +1,34 @@
+package main.protocol.memory;
+
+import java.io.File;
+import java.io.IOException;
+import java.net.URI;
+import java.net.URISyntaxException;
+import java.nio.file.Files;
+import java.nio.file.Paths;
+import java.util.List;
+
+class MemoryUtils {
+
+    static boolean stringIsNumeric(String str) {
+        for (char c : str.toCharArray()) {
+            if (c < '0' || c > '9') return false;
+        }
+        return true;
+    }
+
+    static boolean fileContainsString(String path, String contains) {
+
+        try {
+            List<String> lines = Files.readAllLines(new File(path).toPath());
+            for (String line : lines) {
+                if (line.contains(contains)) return true;
+            }
+        } catch (Exception e) {
+            // process of specified path not running anymore
+        }
+        return false;
+
+    }
+
+}
diff --git a/src/main/protocol/memory/Rc4Obtainer.java b/src/main/protocol/memory/Rc4Obtainer.java
new file mode 100644
index 0000000..6e734e3
--- /dev/null
+++ b/src/main/protocol/memory/Rc4Obtainer.java
@@ -0,0 +1,195 @@
+package main.protocol.memory;
+
+import javafx.application.Platform;
+import main.protocol.HPacket;
+import main.protocol.packethandler.BufferListener;
+import main.protocol.packethandler.IncomingHandler;
+import main.protocol.packethandler.OutgoingHandler;
+import main.protocol.memory.FlashClient;
+
+import java.util.List;
+
+public class Rc4Obtainer {
+
+    public static Rc4Obtainer rc4Obtainer = null;
+    public static void initialize() {
+        rc4Obtainer = new Rc4Obtainer();
+        rc4Obtainer.client = FlashClient.create();
+    }
+
+    FlashClient client = null;
+    OutgoingHandler outgoingHandler = null;
+    IncomingHandler incomingHandler = null;
+
+    private Rc4Obtainer() {
+
+    }
+
+    public void setOutgoingHandler(OutgoingHandler handler) {
+        outgoingHandler = handler;
+        handler.addBufferListener(() -> {
+            if (handler.getCurrentIndex() >= 3) hasChangedFromLastCheck = true;
+            if (!hashappened1 && handler.getCurrentIndex() == 3) {
+                hashappened1 = true;
+                onSendFirstEncryptedMessage();
+            }
+        });
+    }
+
+    public void setIncomingHandler(IncomingHandler handler) {
+        incomingHandler = handler;
+        handler.addBufferListener(() -> {
+            if (!hashappened2 && handler.getCurrentIndex() == 1) {
+                hashappened2 = true;
+                onReceivePubKey();
+            }
+        });
+    }
+
+    private List<FlashClient.MemorySnippet> fullmemorybeforekey = null;
+    private boolean hasChangedFromLastCheck = false;
+
+    private boolean hashappened2 = false;
+    private void onReceivePubKey() {
+        incomingHandler.block();
+        new Thread(() -> {
+
+            System.out.println("[+] receive pubkey");
+            client.pauseProcess();
+
+            fullmemorybeforekey = client.createMemorySnippetList();
+            client.fetchMemory(fullmemorybeforekey);
+
+            System.out.println("[-] receive pubkey");
+
+            client.resumeProcess();
+            incomingHandler.unblock();
+        }).start();
+    }
+
+
+    private boolean hashappened1 = false;
+    private void onSendFirstEncryptedMessage() {
+        incomingHandler.block();
+        outgoingHandler.block();
+        new Thread(() -> {
+
+            System.out.println("[+] send encrypted");
+            client.pauseProcess();
+            client.updateMapLocationsSnippetList(fullmemorybeforekey);
+            client.resumeProcess();
+
+            List<FlashClient.MemorySnippet> diff = searchForPossibleRC4Tables(fullmemorybeforekey);
+            System.out.println("size: " + getTotalBytesLengthOfDiff(diff));
+            for (int i = 0; i < 20; i++) {
+//                if (i % 2 == 1) {
+//                    incomingHandler.sendToStream(new HPacket(3631).toBytes());
+//                }
+                sleep(200);
+                boolean rem = hasChangedFromLastCheck;
+                diff = searchForPossibleRC4Tables(diff);
+                System.out.println("size: " + getTotalBytesLengthOfDiff(diff) + " and was changed: " + rem);
+            }
+
+
+            System.out.println("[-] send encrypted");
+            outgoingHandler.unblock();
+            incomingHandler.unblock();
+        }).start();
+
+
+    }
+
+    private List<FlashClient.MemorySnippet> searchForPossibleRC4Tables(List<FlashClient.MemorySnippet> snippets) {
+        List<FlashClient.MemorySnippet> result;
+        client.pauseProcess();
+        if (hasChangedFromLastCheck) {
+            result = client.differentiate(snippets, true, 255);
+            hasChangedFromLastCheck = false;
+        }
+        else {
+            result = client.differentiate(snippets, false, 4);
+        }
+        client.resumeProcess();
+
+        return result;
+    }
+
+    private long getTotalBytesLengthOfDiff(List<FlashClient.MemorySnippet> snippets) {
+        long tot = 0;
+        for (FlashClient.MemorySnippet snippet : snippets) {
+            tot += (snippet.getData().length);
+        }
+        return tot;
+    }
+
+    private void sleep(int ms) {
+        try {
+            Thread.sleep(ms);
+        } catch (InterruptedException e) {
+            e.printStackTrace();
+        }
+    }
+
+
+    //        System.out.println("[+] receive pubkey");
+//        incomingHandler.block();
+//        client.pauseProcess();
+//        fullmemorybeforekey = client.createMemorySnippetList();
+//        client.fetchMemory(fullmemorybeforekey);
+//        System.out.println("[-] receive pubkey");
+//        incomingHandler.unblock();
+//        client.resumeProcess();
+
+    //        client.pauseProcess();
+//
+//        client.refreshMemoryMaps();
+//        List<String> result = client.findSharedKey2();
+//        System.out.println("result size: "+ result);
+//
+//        client.resumeProcess();
+
+//        System.out.println("[+] send encrypted");
+//        client.pauseProcess();
+//        client.updateMapLocationsSnippetList(fullmemorybeforekey);
+//
+//        List<FlashClient.MemorySnippet> diff = client.differentiate(fullmemorybeforekey, true, 54);
+//
+//        List<String> results = client.findSharedKey(diff);
+//        System.out.println("results: " +results.size());
+//        for (String s : results) {
+//            System.out.println(s);
+//        }
+//        System.out.println("[-] send encrypted");
+//        client.resumeProcess();
+
+//     payloadBuffer.push(buffer);
+//    buffer = new byte[]{};
+//    tempBlockIncoming = true;
+//    client = FlashClient.create();
+//     client.pauseProcess();
+//    fullmemoryb4publickey = client.createMemorySnippetList();
+//      client.fetchMemory(fullmemoryb4publickey);
+//      client.resumeProcess();
+
+
+
+//     if (!doneFlash) {
+//        tempBlockEncrypted = true;
+//        FlashClient client = IncomingHandler.client;
+//        List<FlashClient.MemorySnippet> mem = IncomingHandler.fullmemoryb4publickey;
+//        client.pauseProcess();
+//        client.updateMapLocationsSnippetList(mem);
+//        List<FlashClient.MemorySnippet> diff = client.differentiate(mem, true, 54);
+//        IncomingHandler.fullmemoryb4publickey = null;
+//        List<String> results = client.findSharedKey(diff);
+//        System.out.println("results: " +results.size());
+//        for (String s : results) {
+//            System.out.println(s);
+//        }
+//        client.resumeProcess();
+//        tempBlockEncrypted = false;
+//        IncomingHandler.tempBlockIncoming = false;
+//        doneFlash = true;
+//    }
+}
diff --git a/src/main/protocol/packethandler/BufferListener.java b/src/main/protocol/packethandler/BufferListener.java
new file mode 100644
index 0000000..1a459fb
--- /dev/null
+++ b/src/main/protocol/packethandler/BufferListener.java
@@ -0,0 +1,8 @@
+package main.protocol.packethandler;
+
+
+public interface BufferListener {
+
+    void act();
+
+}
diff --git a/src/main/protocol/packethandler/Handler.java b/src/main/protocol/packethandler/Handler.java
new file mode 100644
index 0000000..054368e
--- /dev/null
+++ b/src/main/protocol/packethandler/Handler.java
@@ -0,0 +1,100 @@
+package main.protocol.packethandler;
+
+import main.protocol.HMessage;
+import main.protocol.TrafficListener;
+
+import java.io.IOException;
+import java.io.OutputStream;
+import java.util.ArrayList;
+import java.util.List;
+
+public abstract class Handler {
+
+    volatile PayloadBuffer payloadBuffer = new PayloadBuffer();
+    volatile OutputStream out;
+    private volatile Object[] listeners = null; //get notified on packet send
+    private volatile boolean isTempBlocked = false;
+    volatile boolean isDataStream = false;
+    volatile int currentIndex = 0;
+
+
+    public Handler(OutputStream outputStream) {
+        out = outputStream;
+    }
+
+    public boolean isDataStream() {return isDataStream;}
+    public void setAsDataStream() {
+        isDataStream = true;
+    }
+
+    public void act(byte[] buffer, Object[] listeners) throws IOException {
+        this.listeners = listeners;
+
+        if (isDataStream)	{
+            payloadBuffer.push(buffer);
+            notifyBufferListeners();
+
+            if (!isTempBlocked) {
+                flush();
+            }
+            else {
+                if (this instanceof OutgoingHandler) {
+                    System.out.println("blocked outgoing bytes with size: "+ buffer.length);
+                }
+            }
+        }
+        else  {
+            out.write(buffer);
+        }
+    }
+
+    public void block() {
+        isTempBlocked = true;
+    }
+    public void unblock() {
+        try {
+            flush();
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+        isTempBlocked = false;
+    }
+
+    /**
+     * LISTENERS CAN EDIT THE MESSAGE BEFORE BEING SENT
+     * @param message
+     */
+    void notifyListeners(HMessage message) {
+        for (TrafficListener listener : (List<TrafficListener>)listeners[0]) {
+            listener.onCapture(message);
+        }
+        for (TrafficListener listener : (List<TrafficListener>)listeners[1]) {
+            listener.onCapture(message);
+        }
+        for (TrafficListener listener : (List<TrafficListener>)listeners[2]) {
+            listener.onCapture(message);
+        }
+    }
+    public abstract void sendToStream(byte[] buffer);
+
+    public abstract void flush() throws IOException;
+
+
+
+    private List<BufferListener> bufferListeners = new ArrayList<>();
+    public void addBufferListener(BufferListener listener) {
+        bufferListeners.add(listener);
+    }
+    public void removeBufferListener(BufferListener listener) {
+        bufferListeners.remove(listener);
+    }
+    private void notifyBufferListeners() {
+        for (int i = bufferListeners.size() - 1; i >= 0; i -= 1) {
+            bufferListeners.get(i).act();
+        }
+    }
+
+    public int getCurrentIndex() {
+        return currentIndex;
+    }
+}
diff --git a/src/main/protocol/packethandler/IncomingHandler.java b/src/main/protocol/packethandler/IncomingHandler.java
new file mode 100644
index 0000000..b830469
--- /dev/null
+++ b/src/main/protocol/packethandler/IncomingHandler.java
@@ -0,0 +1,46 @@
+package main.protocol.packethandler;
+
+import main.protocol.HMessage;
+import main.protocol.HPacket;
+import main.protocol.memory.Rc4Obtainer;
+
+import java.io.IOException;
+import java.io.OutputStream;
+
+public class IncomingHandler extends Handler {
+
+    public IncomingHandler(OutputStream outputStream) {
+        super(outputStream);
+    }
+
+    @Override
+    public void setAsDataStream() {
+        super.setAsDataStream();
+        Rc4Obtainer.rc4Obtainer.setIncomingHandler(this);
+    }
+
+    @Override
+    public void sendToStream(byte[] buffer) {
+        try {
+            out.write(buffer);
+            out.flush();
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+    }
+
+    @Override
+    public void flush() throws IOException {
+        HPacket[] hpackets = payloadBuffer.receive();
+
+        for (HPacket hpacket : hpackets){
+            HMessage hMessage = new HMessage(hpacket, HMessage.Side.TOCLIENT, currentIndex);
+            notifyListeners(hMessage);
+
+            if (!hMessage.isBlocked())	{
+                out.write(hMessage.getPacket().toBytes());
+            }
+            currentIndex++;
+        }
+    }
+}
diff --git a/src/main/protocol/packethandler/OutgoingHandler.java b/src/main/protocol/packethandler/OutgoingHandler.java
new file mode 100644
index 0000000..ba83af8
--- /dev/null
+++ b/src/main/protocol/packethandler/OutgoingHandler.java
@@ -0,0 +1,67 @@
+package main.protocol.packethandler;
+
+import main.protocol.HMessage;
+import main.protocol.HPacket;
+import main.protocol.memory.Rc4Obtainer;
+
+import java.io.IOException;
+import java.io.OutputStream;
+
+public class OutgoingHandler extends Handler {
+
+    private final static int encryptOffset = 3; //all packets with index < 3 aren't encrypted
+
+    public OutgoingHandler(OutputStream outputStream) {
+        super(outputStream);
+    }
+
+    private void dataStreamCheck(byte[] buffer)	{
+        if (!isDataStream) {
+            HPacket hpacket = new HPacket(buffer);
+            isDataStream = (hpacket.getBytesLength() > 6 && hpacket.headerId() == 4000 && hpacket.headerId() == 4000);
+            if (isDataStream) {
+                Rc4Obtainer.initialize();
+                Rc4Obtainer.rc4Obtainer.setOutgoingHandler(this);
+            }
+        }
+    }
+
+    @Override
+    public void act(byte[] buffer, Object[] listeners) throws IOException {
+        dataStreamCheck(buffer);
+        super.act(buffer, listeners);
+    }
+
+    @Override
+    public void sendToStream(byte[] buffer) {
+
+    }
+
+    @Override
+    public void flush() throws IOException {
+
+        if (currentIndex < encryptOffset) {
+            HPacket[] hpackets = payloadBuffer.receive();
+            for (HPacket hpacket : hpackets){
+                HMessage hMessage = new HMessage(hpacket, HMessage.Side.TOSERVER, currentIndex);
+                notifyListeners(hMessage);
+                if (!hMessage.isBlocked())	{
+                    out.write(hMessage.getPacket().toBytes());
+                }
+                currentIndex ++;
+            }
+        }
+
+        if (currentIndex >= encryptOffset) {
+            if (payloadBuffer.peak().length > 0) {
+                HPacket packet = new HPacket(payloadBuffer.forceClear());
+                HMessage hMessage = new HMessage(packet, HMessage.Side.TOSERVER, currentIndex);
+
+                notifyListeners(hMessage);
+                out.write(packet.toBytes());
+                currentIndex++;
+            }
+
+        }
+    }
+}
diff --git a/src/main/protocol/packethandler/PayloadBuffer.java b/src/main/protocol/packethandler/PayloadBuffer.java
new file mode 100644
index 0000000..7fac4b6
--- /dev/null
+++ b/src/main/protocol/packethandler/PayloadBuffer.java
@@ -0,0 +1,59 @@
+package main.protocol.packethandler;
+
+import main.protocol.HPacket;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+
+public class PayloadBuffer {
+
+    private byte[] buffer = new byte[0];
+
+    public HPacket[] pushAndReceive(byte[] tcpData){
+        push(tcpData);
+        return receive();
+    }
+    public void push(byte[] tcpData) {
+        buffer = buffer.length == 0 ? tcpData : combineByteArrays(buffer, tcpData);
+    }
+    public HPacket[] receive() {
+        if (buffer.length < 6) return new HPacket[0];
+
+        HPacket total = new HPacket(buffer);
+        if (total.getBytesLength() - 4 == total.length())	{
+            buffer = new byte[0];
+            return new HPacket[]{total};
+        }
+        else if (total.getBytesLength() - 4 > total.length())	{
+            ArrayList<HPacket> all = new ArrayList<>();
+            while (total.getBytesLength() >= 4 && total.getBytesLength() - 4 >= total.length()){
+                all.add(new HPacket(Arrays.copyOfRange(buffer, 0, total.length() + 4)));
+                buffer = Arrays.copyOfRange(buffer, total.length() + 4, buffer.length);
+                total = new HPacket(buffer);
+            }
+            return all.toArray(new HPacket[all.size()]);
+        }
+        else	{
+            return new HPacket[0];
+        }
+    }
+
+
+    private byte[] combineByteArrays(byte[] arr1, byte[] arr2)	{
+        byte[] combined = new byte[arr1.length + arr2.length];
+        System.arraycopy(arr1,0,combined,0         ,arr1.length);
+        System.arraycopy(arr2,0,combined,arr1.length,arr2.length);
+        return combined;
+    }
+
+
+    public byte[] peak() {
+        return buffer;
+    }
+    public byte[] forceClear() {
+        byte[] buff = buffer;
+        buffer = new byte[0];
+        return buff;
+    }
+
+}
diff --git a/src/main/ui/G-Earth.fxml b/src/main/ui/G-Earth.fxml
new file mode 100644
index 0000000..2dea4ee
--- /dev/null
+++ b/src/main/ui/G-Earth.fxml
@@ -0,0 +1,39 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<?import javafx.scene.control.Tab?>
+<?import javafx.scene.control.TabPane?>
+<?import javafx.scene.layout.Pane?>
+<?import javafx.scene.layout.VBox?>
+
+<!--maxHeight="19.0" minHeight="19.0"-->
+
+<VBox xmlns="http://javafx.com/javafx/8.0.112" xmlns:fx="http://javafx.com/fxml/1" fx:controller="main.ui.GEarthController">
+   <Pane fx:id="mover" maxHeight="0.0" minHeight="0.0" prefWidth="200.0" />
+    <TabPane maxHeight="1.7976931348623157E308" maxWidth="1.7976931348623157E308" minHeight="-Infinity" minWidth="-Infinity" prefHeight="295.0" prefWidth="565.0" tabClosingPolicy="UNAVAILABLE">
+        <tabs>
+            <Tab text="Connection">
+                <content>
+                    <fx:include fx:id="connection" source="connection/Connection.fxml" />
+                </content>
+            </Tab>
+            <Tab text="Logger">
+                <content>
+                    <fx:include fx:id="logger" source="logger/Logger.fxml" />
+                </content></Tab>
+            <Tab text="Injection">
+                <content>
+                    <fx:include fx:id="injection" source="injection/Injection.fxml" />
+                </content></Tab>
+            <Tab text="Tools">
+                <content>
+                    <fx:include fx:id="tools" source="tools/Tools.fxml" />
+                </content>
+            </Tab>
+            <Tab disable="true" text="Scheduler" />
+            <Tab disable="true" text="Settings" />
+            <Tab disable="true" text="Extensions" />
+            <Tab disable="true" text="Info" />
+        </tabs>
+    </TabPane>
+
+</VBox>
diff --git a/src/main/ui/GEarthController.java b/src/main/ui/GEarthController.java
new file mode 100644
index 0000000..1c210f8
--- /dev/null
+++ b/src/main/ui/GEarthController.java
@@ -0,0 +1,87 @@
+package main.ui;
+
+import javafx.event.EventHandler;
+import javafx.fxml.FXML;
+import javafx.scene.input.KeyEvent;
+import javafx.scene.input.MouseEvent;
+import javafx.scene.layout.Pane;
+import javafx.stage.Stage;
+import main.protocol.HConnection;
+import main.ui.connection.ConnectionForm;
+import main.ui.injection.InjectionForm;
+import main.ui.logger.LoggerForm;
+import main.ui.tools.ToolsForm;
+
+import java.awt.*;
+
+public class GEarthController {
+
+    private Stage stage = null;
+    private volatile HConnection hConnection;
+
+    public ConnectionForm connectionController;
+    public InjectionForm injectionController;
+    public LoggerForm loggerController;
+    public ToolsForm toolsController;
+    public Pane mover;
+
+    public GEarthController() {
+        hConnection = new HConnection();
+    }
+
+    public void initialize() {
+        connectionController.setParentController(this);
+        injectionController.setParentController(this);
+        loggerController.setParentController(this);
+        toolsController.setParentController(this);
+        //custom header bar
+//        final Point[] startpos = {null};
+//        final Double[] xx = {0.0};
+//        final Double[] yy = {0.0};
+//        final Boolean[] isMoving = {false};
+//
+//        mover.addEventHandler(MouseEvent.MOUSE_PRESSED,
+//                event -> {
+//                    startpos[0] = MouseInfo.getPointerInfo().getLocation();
+//                    xx[0] = stage.getX();
+//                    yy[0] = stage.getY();
+//                    isMoving[0] = true;
+//                });
+//
+//        mover.addEventHandler(MouseEvent.MOUSE_RELEASED,
+//                event -> {
+//                    isMoving[0] = false;
+//                });
+//
+//
+//        mover.setOnMouseDragged(event -> {
+//            if (isMoving[0]) {
+//                Point now = MouseInfo.getPointerInfo().getLocation();
+//                double diffX = now.getX() - startpos[0].getX();
+//                double diffY = now.getY() - startpos[0].getY();
+//                stage.setX(xx[0] + diffX);
+//                stage.setY(yy[0] + diffY);
+//            }
+//        });
+    }
+
+    public void setStage(Stage stage) {
+        this.stage = stage;
+    }
+    public Stage getStage() {
+        return stage;
+    }
+
+    HConnection getHConnection() {
+        return hConnection;
+    }
+    void writeToLog(javafx.scene.paint.Color color, String text) {
+        loggerController.miniLogText(color, text);
+    }
+
+
+    public void abort() {
+        hConnection.abort();
+    }
+
+}
diff --git a/src/main/ui/SubForm.java b/src/main/ui/SubForm.java
new file mode 100644
index 0000000..6c04b1e
--- /dev/null
+++ b/src/main/ui/SubForm.java
@@ -0,0 +1,32 @@
+package main.ui;
+
+
+import main.protocol.HConnection;
+import main.protocol.HMessage;
+import main.protocol.HPacket;
+
+import java.awt.*;
+
+public class SubForm {
+
+    GEarthController parentController;
+
+    public void setParentController(GEarthController controller) {
+        parentController = controller;
+        onParentSet();
+    }
+
+
+    //abstract
+    protected void onParentSet() {
+
+    }
+
+    protected HConnection getHConnection() {
+        return parentController.getHConnection();
+    }
+    protected void writeToLog(javafx.scene.paint.Color color, String text) {
+        parentController.writeToLog(color, text);
+    }
+
+}
diff --git a/src/main/ui/bootstrap3.css b/src/main/ui/bootstrap3.css
new file mode 100644
index 0000000..a79da42
--- /dev/null
+++ b/src/main/ui/bootstrap3.css
@@ -0,0 +1,893 @@
+.root {
+    -fx-body-color : #F5F5F5;
+    -fx-outer-border : #cecece;
+}
+.button,.menu-button,.toggle-button,.split-menu-button {
+    -fx-font-size: 14;
+    -fx-background-radius: 4;
+    -fx-border-radius: 4;
+    -fx-pref-height: 30;
+    -fx-min-width: 30;
+}
+.button,.menu-button,.split-menu-button,.toggle-button,.number-button {
+    -fx-background-insets: 0, 0, -1, 0;
+}
+
+.split-menu-button > .label {
+    -fx-border-radius: 4 0 0 4;
+    -fx-background-radius: 3 0 0 3;
+}
+
+.split-menu-button > .arrow-button {
+    -fx-border-radius: 0 4 4 0;
+    -fx-background-radius: 0 3 3 0;
+}
+
+.lg {
+    -fx-min-height: 46;
+    -fx-max-height: 46;
+    -fx-font-size: 18;
+}
+
+.sm {
+    -fx-min-height: 30;
+    -fx-max-height: 30;
+}
+
+.xs {
+    -fx-min-height: 22;
+    -fx-max-height: 22;
+    -fx-font-size: 10;
+}
+
+.primary .arrow,
+.success .arrow,
+.info .arrow,
+.warning .arrow,
+.danger .arrow {
+    -fx-background-color: transparent, white;
+}
+
+.primary > .label,
+.success > .label,
+.info > .label,
+.warning > .label,
+.danger > .label {
+    -fx-text-fill: white;
+}
+
+.action-btn {
+    -fx-min-width: 80;
+}
+
+/*positions*/
+/*first*/
+.button.first, .menu-button.first, .toggle-button.first, .text-field.first, .text-area.first {
+    -fx-border-radius: 4 0 0 4;
+    -fx-background-radius: 4 0 0 4;
+}
+
+.split-menu-button.first > .arrow-button, .split-menu-button.middle > .arrow-button {
+    -fx-border-radius: 0;
+    -fx-background-radius: 0;
+}
+
+VBox > .button.first,
+VBox > .menu-button.first,
+VBox > .toggle-button.first,
+VBox > .split-menu-button.first,
+VBox > .text-field.first,
+VBox > .text-area.first {
+    -fx-border-radius: 4 4 0 0;
+    -fx-background-radius: 4 4 0 0;
+}
+
+VBox > .split-menu-button.first > .label {
+    -fx-border-radius: 4 0 0 0;
+    -fx-background-radius: 3 0 0 0;
+}
+VBox > .split-menu-button.first > .arrow-button {
+    -fx-border-radius: 0 4 0 0;
+    -fx-background-radius: 0 3 0 0;
+}
+/*middle*/
+.middle {
+    -fx-border-radius: 0;
+    -fx-background-radius: 0;
+}
+
+/*last*/
+.split-menu-button.middle > .label, .split-menu-button.last > .label {
+    -fx-border-radius: 0;
+    -fx-background-radius: 0;
+}
+
+.split-menu-button.last {
+    -fx-border-radius: 0 4 4 0;
+    -fx-background-radius: 0 4 4 0;
+}
+
+.button.middle, .text-field.middle, .text-area.middle, .split-menu-button.middle, .toggle-button.middle {
+    -fx-border-radius: 0;
+    -fx-background-radius: 0;
+}
+
+.button.last, .text-field.last, .text-area.last, .split-menu-button.last, .toggle-button.last, .menu-button.last {
+    -fx-border-radius: 0 4 4 0;
+    -fx-background-radius: 0 4 4 0;
+}
+VBox > .button.last,
+VBox > .menu-button.last,
+VBox > .toggle-button.last,
+VBox > .split-menu-button.last,
+VBox > .text-field.last,
+VBox > .text-area.last {
+    -fx-border-radius: 0 0 4 4;
+    -fx-background-radius: 0 0 4 4;
+}
+
+VBox > .split-menu-button.last > .label {
+    -fx-border-radius: 0 0 0 4;
+    -fx-background-radius: 0 0 0 3;
+}
+VBox > .split-menu-button.last > .arrow-button {
+    -fx-border-radius: 0 0 4 0;
+    -fx-background-radius: 0 0 3 0;
+}
+
+/*button styles*/
+
+/*default button settings*/
+
+/*bgcolor setting*/
+.color-picker,.date-picker > .arrow-button,
+.number-button,.left-arrow-button,.right-arrow-button,
+.button,.split-menu-button,.toggle-button,.menu-button,
+.font-menu-button, .split-menu-button > .label, .split-menu-button > .arrow-button {
+    -fx-background-color: white;
+}
+
+.color-picker,.date-picker > .arrow-button,
+.button,.menu-button,.toggle-button,.number-button,.left-arrow-button,.right-arrow-button,
+.font-menu-button,
+.split-menu-button > .label,.split-menu-button > .arrow-button {
+    -fx-border-color: #cccccc;
+    -fx-text-fill: #333333;
+}
+/*just for the special split menu button*/
+.split-menu-button > .label {
+    -fx-border-width: 1 0 1 1;
+}
+/*for date picker arrow button*/
+.date-picker > .arrow-button {
+    -fx-border-radius: 0 4 4 0;
+}
+.combo-box > .arrow-button, .choice-box > .arrow-button {
+    -fx-border-width: 0;
+}
+/*hover state*/
+.color-picker:hover,
+.date-picker:hover > .arrow-button,
+.combo-box:hover,.choice-box:hover,
+.number-button:hover,.left-arrow-button:hover,.right-arrow-button:hover,
+.button:hover,.menu-button:hover,.toggle-button:hover,
+.font-menu-button:hover,
+.split-menu-button > .label:hover, .split-menu-button > .arrow-button:hover {
+    -fx-background-color: #e6e6e6;
+    -fx-border-color: #acacac;
+}
+/*pressed selected*/
+.color-picker:pressed,.color-picker:selected,
+.number-button:pressed,.number-button:selected,
+.date-picker:pressed > .arrow-button,
+.combo-box:pressed > .arrow-button,.combo-box:selected > .arrow-button,
+.choice-box:pressed > .arrow-button,.choice-box:selected > .arrow-button,
+.font-menu-button:pressed,.font-menu-button:selected,
+.left-arrow-button:pressed,.left-arrow-button:selected,
+.right-arrow-button:pressed,.right-arrow-button:selected,
+.button:pressed, .button:selected,.menu-button:pressed,.menu-button:selected
+,.toggle-button:pressed,.toggle-button:selected,
+.split-menu-button:pressed > .label, .split-menu-button > .arrow-button:pressed {
+    -fx-background-color: #e6e6e6;
+    -fx-border-color: #acacac;
+    -fx-effect: innershadow(gaussian, #adadad, 10, 0, 0, 3);
+}
+
+/*primary*/
+
+.button.primary,.split-menu-button.primary,.toggle-button.primary,.menu-button.primary,
+.split-menu-button.primary > .label, .split-menu-button.primary > .arrow-button {
+    -fx-background-color: #337ab7;
+}
+
+.button.primary,.menu-button.primary,.toggle-button.primary,
+.split-menu-button.primary > .label,.split-menu-button.primary > .arrow-button {
+    -fx-border-color: #2e6da4;
+    -fx-text-fill: white;
+}
+/*hover state*/
+.button.primary:hover,.menu-button.primary:hover,.toggle-button.primary:hover,
+.split-menu-button.primary > .label:hover, .split-menu-button.primary > .arrow-button:hover {
+    -fx-border-color: #204d74;
+    -fx-background-color: #286090;
+}
+/*pressed selected*/
+.button.primary:pressed, .button.primary:selected,
+.menu-button.primary:pressed,.menu-button.primary:selected
+,.toggle-button.primary:pressed,.toggle-button.primary:selected,
+.split-menu-button.primary:pressed > .label, .split-menu-button.primary > .arrow-button:pressed {
+    -fx-background-color: #286090;
+    -fx-border-color: #204d74;
+    -fx-effect: innershadow(gaussian, #204d74, 10, 0, 0, 3);
+}
+
+/*success*/
+
+.button.success,.split-menu-button.success,.toggle-button.success,.menu-button.success,
+.split-menu-button.success > .label, .split-menu-button.success > .arrow-button {
+    -fx-background-color: #5cb85c;
+}
+
+.button.success,.menu-button.success,.toggle-button.success,
+.split-menu-button.success > .label,.split-menu-button.success > .arrow-button {
+    -fx-border-color: #4cae4c;
+    -fx-text-fill: white;
+}
+/*hover state*/
+.button.success:hover,.menu-button.success:hover,.toggle-button.success:hover,
+.split-menu-button.success > .label:hover, .split-menu-button.success > .arrow-button:hover {
+    -fx-border-color: #398439;
+    -fx-background-color: #449d44;
+}
+/*pressed selected*/
+.button.success:pressed, .button.success:selected,
+.menu-button.success:pressed,.menu-button.success:selected
+,.toggle-button.success:pressed,.toggle-button.success:selected,
+.split-menu-button.success:pressed > .label, .split-menu-button.success > .arrow-button:pressed {
+    -fx-background-color: #449d44;
+    -fx-border-color: #398439;
+    -fx-effect: innershadow(gaussian, #398439, 10, 0, 0, 3);
+}
+
+/*info*/
+
+.button.info,.split-menu-button.info,.toggle-button.info,.menu-button.info,
+.split-menu-button.info > .label, .split-menu-button.info > .arrow-button {
+    -fx-background-color: #5bc0de;
+}
+
+.button.info,.menu-button.info,.toggle-button.info,
+.split-menu-button.info > .label,.split-menu-button.info > .arrow-button {
+    -fx-border-color: #46b8da;
+    -fx-text-fill: white;
+}
+/*hover state*/
+.button.info:hover,.menu-button.info:hover,.toggle-button.info:hover,
+.split-menu-button.info > .label:hover, .split-menu-button.info > .arrow-button:hover {
+    -fx-border-color: #269abc;
+    -fx-background-color: #31b0d5;
+}
+/*pressed selected*/
+.button.info:pressed, .button.info:selected,
+.menu-button.info:pressed,.menu-button.info:selected
+,.toggle-button.info:pressed,.toggle-button.info:selected,
+.split-menu-button.info:pressed > .label, .split-menu-button.info > .arrow-button:pressed {
+    -fx-background-color: #31b0d5;
+    -fx-border-color: #269abc;
+    -fx-effect: innershadow(gaussian, #269abc, 10, 0, 0, 3);
+}
+
+/*warning*/
+
+.button.warning,.split-menu-button.warning,.toggle-button.warning,.menu-button.warning,
+.split-menu-button.warning > .label, .split-menu-button.warning > .arrow-button {
+    -fx-background-color: #f0ad4e;
+}
+
+.button.warning,.menu-button.warning,.toggle-button.warning,
+.split-menu-button.warning > .label,.split-menu-button.warning > .arrow-button {
+    -fx-border-color: #eea236;
+    -fx-text-fill: white;
+}
+/*hover state*/
+.button.warning:hover,.menu-button.warning:hover,.toggle-button.warning:hover,
+.split-menu-button.warning > .label:hover, .split-menu-button.warning > .arrow-button:hover {
+    -fx-border-color: #d58512;
+    -fx-background-color: #ec971f;
+}
+/*pressed selected*/
+.button.warning:pressed, .button.warning:selected,
+.menu-button.warning:pressed,.menu-button.warning:selected
+,.toggle-button.warning:pressed,.toggle-button.warning:selected,
+.split-menu-button.warning:pressed > .label, .split-menu-button.warning > .arrow-button:pressed {
+    -fx-background-color: #ec971f;
+    -fx-border-color: #d58512;
+    -fx-effect: innershadow(gaussian, #d58512, 10, 0, 0, 3);
+}
+
+/*danger*/
+
+.button.danger,.split-menu-button.danger,.toggle-button.danger,.menu-button.danger,
+.split-menu-button.danger > .label, .split-menu-button.danger > .arrow-button {
+    -fx-background-color: #d9534f;
+}
+
+.button.danger,.menu-button.danger,.toggle-button.danger,
+.split-menu-button.danger > .label,.split-menu-button.danger > .arrow-button {
+    -fx-border-color: #d43f3a;
+    -fx-text-fill: white;
+}
+/*hover state*/
+.button.danger:hover,.menu-button.danger:hover,.toggle-button.danger:hover,
+.split-menu-button.danger > .label:hover, .split-menu-button.danger > .arrow-button:hover {
+    -fx-border-color: #ac2925;
+    -fx-background-color: #c9302c;
+}
+/*pressed selected*/
+.button.danger:pressed, .button.danger:selected,
+.menu-button.danger:pressed,.menu-button.danger:selected
+,.toggle-button.danger:pressed,.toggle-button.danger:selected,
+.split-menu-button.danger:pressed > .label, .split-menu-button.danger > .arrow-button:pressed {
+    -fx-border-color: #ac2925;
+    -fx-background-color: #c9302c;
+    -fx-effect: innershadow(gaussian, #ac2925, 10, 0, 0, 3);
+}
+
+.menu-item {
+    -fx-min-width: 200;
+}
+
+.menu-item:focused {
+    -fx-background-color: #f5f5f5;
+}
+
+.menu-item:focused > * {
+    -fx-text-fill: #262626;
+}
+.menu-item:focused .arrow {
+    -fx-background-color: #333333;
+}
+
+.check-menu-item:checked:hover > .left-container > .check,
+.check-menu-item:checked:focused > .left-container > .check,
+.radio-menu-item:checked:hover > .left-container > .radio,
+.radio-menu-item:checked:focused > .left-container > .radio {
+    -fx-background-color: #333333;
+}
+
+.context-menu {
+    -fx-border-radius: 4;
+    -fx-background-radius: 4;
+    -fx-border-color: #bebec0;
+}
+
+.context-menu > * {
+    -fx-padding: 5 0 5 0;
+}
+
+.separator {
+    -fx-padding: 5 0 5 0;
+}
+
+.text-field {
+    -fx-pref-height: 30;
+}
+
+.combo-box, .choice-box {
+    -fx-background-insets: 0;
+    -fx-border-color: #cecece;
+    -fx-padding: -1;
+    -fx-border-width: 1;
+}
+.combo-box, .choice-box, .color-picker, .date-picker {
+    -fx-border-radius: 4;
+    -fx-background-radius: 4;
+    -fx-pref-height: 30;
+}
+
+.combo-box:editable > .arrow-button {
+    -fx-background-color: white;
+}
+
+.combo-box:editable > .arrow-button:hover {
+    -fx-background-color: #e6e6e6;
+}
+
+.combo-box:editable > .arrow-button:pressed {
+    -fx-effect: innershadow(gaussian, #adadad, 10, 0, 0, 3);
+}
+
+.combo-box > .text-input, .date-picker > .text-input {
+    -fx-background-radius: 4 0 0 4;
+    -fx-border-width: 0;
+}
+
+.text-field, .text-area {
+    -fx-border-color: #cccccc;
+    -fx-background-color: white;
+    -fx-border-radius: 4;
+    -fx-background-radius: 4;
+    -fx-effect: innershadow(gaussian, transparent, 0, 0, 0, 0);
+}
+
+.text-field:focused, .text-area:focused {
+    -fx-border-color: #66afe9;
+    -fx-effect: dropshadow(gaussian, #66afe9, 10, 0, 0, 0);
+}
+
+.text-area .scroll-pane, .text-area .scroll-pane .content {
+    -fx-background-color: white;
+    -fx-background-radius: 4;
+}
+
+.tab-pane .tab-header-background {
+    -fx-background-color: #f4f4f4;
+}
+.tab-pane.plain .tab-header-background {
+    -fx-background-color: transparent;
+}
+
+.tab-pane .tab-header-area .tab {
+    -fx-border-radius: 4 4 0 0;
+    -fx-background-radius: 5 5 0 0;
+    -fx-background-color: transparent;
+    -fx-border-color: transparent;
+    -fx-padding: 3 10 5 10;
+    -fx-background-insets: 0;
+}
+
+.tab-pane .tab-header-area .tab .tab-label {
+    -fx-text-fill: #337ab7;
+}
+
+.tab-pane .tab-header-area .tab:hover {
+    -fx-background-color: #eeeeee;
+}
+
+.tab-pane .tab-header-area .tab:selected {
+    -fx-focus-color: transparent;
+    -fx-border-color: #dddddd #dddddd white #dddddd;
+    -fx-background-color: white;
+}
+.tab-pane .tab-header-area .tab:selected .tab-label {
+    -fx-text-fill: #333333;
+}
+.tab-pane > .tab-content-area {
+    -fx-background-color: white;
+}
+
+.tab-pane .tab-header-area .tab .tab-label {
+    -fx-focus-color: transparent;
+}
+
+.tab-pane:focused > .tab-header-area > .headers-region > .tab:selected .focus-indicator {
+    -fx-border-color: transparent;
+}
+
+.tab-pane > .tab-header-area > .headers-region > .tab > .tab-container > .tab-close-button {
+    -fx-background-color: #337ab7;
+}
+.tab-pane > .tab-header-area > .headers-region > .tab:selected > .tab-container > .tab-close-button {
+    -fx-background-color: #333333;
+}
+.tab-pane > .tab-header-area > .headers-region > .tab > .tab-container > .tab-close-button:hover {
+    -fx-background-color: red;
+    -fx-cursor: hand;
+}
+
+.scroll-bar {
+    -fx-background-color: transparent;
+    -fx-background-radius: 0;
+    -fx-block-increment: 50;
+}
+
+.corner {
+    -fx-background-color: transparent;
+}
+
+.scroll-bar .decrement-button, .scroll-bar .decrement-arrow {
+    visibility: hidden;
+    -fx-pref-height: 1;
+    -fx-pref-width: 1;
+}
+
+.scroll-bar .increment-button, .scroll-bar .increment-arrow {
+    visibility: hidden;
+    -fx-pref-height: 1;
+    -fx-pref-width: 1;
+}
+
+.scroll-bar:vertical {
+    -fx-pref-width: 10;
+}
+
+.scroll-bar:horizontal {
+    -fx-pref-height: 10;
+}
+
+.scroll-bar:horizontal .track,
+.scroll-bar:vertical .track {
+    -fx-background-color: transparent;
+    -fx-border-color: transparent;
+    -fx-background-radius: 5;
+}
+
+.scroll-bar:vertical .track-background,
+.scroll-bar:horizontal .track-background {
+    -fx-background-color: transparent;
+    -fx-background-insets: 0;
+    -fx-background-radius: 5;
+}
+
+.scroll-bar:horizontal .thumb {
+    -fx-background-color: #c9c9c9;
+    -fx-background-insets: 2 0 2 0;
+    -fx-background-radius: 5;
+}
+
+.scroll-bar:vertical .thumb {
+    -fx-background-color: #c9c9c9;
+    -fx-background-insets: 0 2 0 2;
+    -fx-background-radius: 5;
+}
+
+.scroll-bar:horizontal .thumb:hover,
+.scroll-bar:vertical .thumb:hover {
+    -fx-background-color: #b5b5b5;
+}
+
+.scroll-bar:horizontal .thumb:pressed,
+.scroll-bar:vertical .thumb:pressed {
+    -fx-background-color: #a0a0a0;
+}
+
+.scroll-bar:vertical .increment-button, .scroll-bar:vertical .decrement-button {
+    -fx-background-color: transparent;
+    -fx-background-radius: 5;
+    -fx-padding: 5;
+}
+
+.scroll-bar:horizontal .increment-button, .scroll-bar:horizontal .decrement-button {
+    -fx-background-color: transparent;
+    -fx-background-radius: 5;
+    -fx-padding: 5;
+}
+
+.scroll-bar:vertical:focused,
+.scroll-bar:horizontal:focused {
+    -fx-background-color: transparent, rgb(96, 96, 96), rgb(96, 96, 96);
+}
+
+.menu-bar {
+    -fx-background-color: white;
+}
+.menu-bar > .container > .menu-button {
+    -fx-background-radius: 0;
+    -fx-background-insets: 0;
+    -fx-border-width: 0;
+    -fx-border-radius: 0;
+}
+.menu-bar > .container > .menu-button:hover,
+.menu-bar > .container > .menu-button:showing {
+    -fx-background-color: #56c0e0;
+}
+
+.color-palette {
+    -fx-background-color: white;
+}
+
+.pagination > .pagination-control > .control-box {
+    -fx-spacing: -1;
+}
+.pagination > .pagination-control > .control-box > .left-arrow-button {
+    -fx-border-radius: 3 0 0 3;
+    -fx-border-insets: 0 0 0 7;
+    -fx-background-insets: 0 0 0 7, 0 0 0 5, 1 1 1 6, 2 2 2 7;
+}
+.pagination > .pagination-control > .control-box > .right-arrow-button {
+    -fx-border-radius: 0 3 3 0;
+    -fx-border-insets: 0 7 0 0;
+    -fx-background-insets: 0 7 -1 0, 0 5 0 0, 1 6 1 1, 2 7 2 2;
+}
+.pagination > .pagination-control > .control-box > .number-button {
+    -fx-background-radius: 0;
+    -fx-border-radius: 0;
+}
+
+.progress-bar > .track {
+    -fx-pref-height: 10;
+    -fx-background-radius: 3;
+    -fx-effect: innershadow(gaussian, #e4e4e4, 4, 0, 0, 1);
+    -fx-background-color: #f5f5f5;
+}
+
+.progress-bar > .bar {
+    -fx-background-insets: 0;
+    -fx-background-color: #337ab7;
+}
+
+.progress-bar.success > .bar {
+    -fx-background-insets: 0;
+    -fx-background-color: #5cb85c;
+}
+
+.progress-bar.info > .bar {
+    -fx-background-insets: 0;
+    -fx-background-color: #5bc0de;
+}
+
+.progress-bar.warning > .bar {
+    -fx-background-insets: 0;
+    -fx-background-color: #f0ad4e
+}
+
+.progress-bar.danger > .bar {
+    -fx-background-insets: 0;
+    -fx-background-color: #d9534f;
+}
+
+.tooltip {
+    -fx-background: white;
+    -fx-text-fill: #333333;
+    -fx-background-color: white;
+    -fx-background-radius: 4px;
+    -fx-border-radius: 4px;
+    -fx-border-color: #C0C0C0;
+    -fx-background-insets: 0;
+    -fx-padding: 0.667em 0.75em 0.667em 0.75em; /* 10px */
+    -fx-effect: dropshadow(three-pass-box, rgba(0, 0, 0, 0.5), 10, 0.0, 0, 3);
+    -fx-font-size: 0.85em;
+}
+
+.tooltip.success {
+    -fx-background: #dff0d8;
+    -fx-background-color: #dff0d8;
+    -fx-text-fill: #99bb96;
+    -fx-border-color: #d6e9c6;
+}
+
+.tooltip.info {
+    -fx-background: #d8ecf6;
+    -fx-background-color: #d8ecf6;
+    -fx-text-fill: #31708f;
+    -fx-border-color: #bce8f1;
+}
+
+.tooltip.warning {
+    -fx-background: #fcf8e3;
+    -fx-background-color: #fcf8e3;
+    -fx-text-fill: #8a6e3c;
+    -fx-border-color: #faebcc;
+}
+
+.tooltip.danger {
+    -fx-background: #f2dede;
+    -fx-background-color: #f2dede;
+    -fx-text-fill: #a94442;
+    -fx-border-color: #ebccd1;
+}
+
+.titled-pane > .title {
+    -fx-background-color: #f5f5f5;
+    -fx-border-color: #dddddd;
+    /*-fx-background-insets: 5, 1, 5;*/
+    -fx-background-radius: 3 3 0 0, 2 2 0 0, 1 1 0 0;
+    -fx-border-radius: 3 3 0 0, 2 2 0 0, 1 1 0 0;
+    -fx-padding: 11
+}
+
+.titled-pane > .content {
+    -fx-background-color: white;
+    -fx-background-radius: 0 0 4 4;
+    -fx-border-radius: 0 0 4 4;
+    -fx-border-color: #dddddd;
+    /*-fx-padding: -11;*/
+}
+
+.titled-pane.primary {
+    -fx-text-fill: white;
+}
+
+.titled-pane.primary > .title {
+    -fx-background-color: #337ab7;
+    -fx-border-color: #337ab7;
+}
+
+.titled-pane.primary > .content {
+    -fx-border-color: #337ab7;
+}
+
+.titled-pane.success .arrow,
+.titled-pane.info .arrow,
+.titled-pane.warning .arrow,
+.titled-pane.danger .arrow {
+    -fx-background-color: -fx-mark-highlight-color, -fx-mark-color;
+}
+
+.titled-pane.success {
+    -fx-text-fill: #3c763d;
+}
+
+.titled-pane.success > .title {
+    -fx-background-color: #dff0d8;
+    -fx-border-color: #d6e9c6;
+}
+
+.titled-pane.success > .content {
+    -fx-border-color: #d6e9c6;
+}
+
+.titled-pane.info {
+    -fx-text-fill: #31708f;
+}
+
+.titled-pane.info > .title {
+    -fx-background-color: #d9edf7;
+    -fx-border-color: #bce8f1;
+}
+
+.titled-pane.info > .content {
+    -fx-border-color: #bce8f1;
+}
+
+.titled-pane.warning {
+    -fx-text-fill: #8a6d3b;
+}
+
+.titled-pane.warning > .title {
+    -fx-background-color: #fcf8e3;
+    -fx-border-color: #faebcc;
+}
+
+.titled-pane.warning > .content {
+    -fx-border-color: #faebcc;
+}
+
+.titled-pane.danger {
+    -fx-text-fill: #a94442;
+}
+
+.titled-pane.danger > .title {
+    -fx-background-color: #f2dede;
+    -fx-border-color: #eacbd0;
+}
+
+.titled-pane.danger > .content {
+    -fx-border-color: #eacbd0;
+}
+
+.accordion > .titled-pane > .title,
+.accordion > .titled-pane > .content {
+    -fx-background-radius: 0;
+    -fx-border-radius: 0;
+}
+
+.tool-bar:vertical { /* left */
+    -fx-border-color: transparent #dddddd transparent transparent;
+}
+
+.tool-bar { /* top */
+    -fx-background-color: white;
+    -fx-border-color: transparent transparent #dddddd transparent;
+}
+
+.tool-bar:vertical {
+    -fx-background-insets: 0, 0 1 0 0;
+}
+
+/*table view columns*/
+.filler,.column-header,.show-hide-columns-button {
+    -fx-background-color: #dddddd, white, white;
+}
+.show-hide-columns-button {
+    -fx-border-width: 0;
+    -fx-background-insets: 0 0 1 1;
+}
+.column-header:hover,.show-hide-columns-button:hover {
+    -fx-background-color: #dddddd, white, #f8f8f8;
+}
+.column-header-background > .filler {
+    -fx-border-color: transparent #dddddd transparent transparent;
+    -fx-border-insets: 0 1 0 0;
+}
+.column-drag-header {
+    -fx-background-color: #2fb254;
+}
+
+/*split pane*/
+.split-pane > .split-pane-divider {
+    -fx-background-color: white;
+    -fx-border-color: #eeeeee;
+    -fx-pref-width: 8;
+}
+.split-pane:horizontal > .split-pane-divider {
+    -fx-background-insets: 0, 0 1 0 1;
+    -fx-border-width: 0 1 0 1;
+}
+/* vertical the two nodes are placed on top of each other. */
+.split-pane:vertical > .split-pane-divider {
+    -fx-background-insets: 0, 1 0 1 0;
+    -fx-border-width: 1 0 1 0;
+}
+.split-pane > .split-pane-divider:hover {
+    -fx-background-color: #E0E0E0;
+}
+
+/*******************************************************************************
+ *                                                                             *
+ * CheckBox                                                                    *
+ *                                                                             *
+ ******************************************************************************/
+.check-box > .box {
+    -fx-background-radius: 3;
+    /*-fx-padding: 0.166667em 0.166667em 0.25em 0.25em; !* 2 2 3 3 *!*/
+    -fx-padding:0;
+    -fx-border-color: #56c0e0;
+    -fx-border-radius: 3;
+    -fx-background-color: white;
+}
+.check-box > .box > .mark {
+    -fx-background-color: null;
+    -fx-padding: 0.416667em 0.416667em 0.5em 0.5em; /* 5 5 6 6 */
+    -fx-shape: "M927.936 272.992l-68.288-68.288c-12.608-12.576-32.96-12.576-45.536 0l-409.44 409.44-194.752-196.16c-12.576-12.576-32.928-12.576-45.536 0l-68.288 68.288c-12.576 12.608-12.576 32.96 0 45.536l285.568 287.488c12.576 12.576 32.96 12.576 45.536 0l500.736-500.768c12.576-12.544 12.576-32.96 0-45.536z";
+    -fx-background-insets: -3 -3 1 0;
+}
+.check-box {
+    -fx-label-padding: 0.2em 0.0em 0.3em 0.416667em; /* 0 0 0 5 */
+    -fx-text-fill: -fx-text-background-color;
+    -fx-padding: 0 0 2 0;
+}
+.check-box:indeterminate > .box {
+    -fx-padding: 0;
+}
+.check-box:selected > .box > .mark {
+    -fx-background-color: linear-gradient(to bottom, #56c0e0, #40b8dc);
+}
+
+/*******************************************************************************
+ *                                                                             *
+ * RadioButton                                                                 *
+ *                                                                             *
+ ******************************************************************************/
+
+.radio-button {
+    -fx-label-padding: 0.0em 0.0em 0.1em 0.416667em; /* 0 0 0 5 */
+    -fx-text-fill: -fx-text-background-color;
+    -fx-padding: 0 0 .5 0;
+}
+.radio-button > .radio,
+.radio-button:focused > .radio  {
+    -fx-border-color: #56c0e0;
+    -fx-border-radius: 1em;
+    -fx-background-radius: 1.0em; /* large value to make sure this remains circular */
+    -fx-padding: 1 2 3 2;
+    -fx-background-color: white;
+}
+.radio-button > .radio > .dot {
+    -fx-background-color: transparent;
+    -fx-background-radius: 1.0em; /* large value to make sure this remains circular */
+    -fx-padding: 0.333333em; /* 4 -- radius of the inner black dot when selected */
+    -fx-background-insets: 3 2 1 2;
+}
+.radio-button:selected > .radio,.radio-button:hover > .radio {
+    -fx-fill-color: #56c0e0;
+}
+.radio-button:pressed > .radio {
+    -fx-background-color: #50c0e2;
+}
+.radio-button:selected > .radio > .dot {
+    -fx-background-color: #56c0e0;
+}
+
+/*common things*/
+.check-box:hover > .box,
+.check-box:selected > .box,
+.radio-button:hover > .radio,
+.radio-button:selected > .radio {
+    -fx-background-color: linear-gradient(to bottom, white, #efefef);
+}
+
+.check-box:pressed > .box,
+.radio-button:pressed > .radio {
+    -fx-background-color: #50c0e2;
+}
\ No newline at end of file
diff --git a/src/main/ui/connection/Connection.fxml b/src/main/ui/connection/Connection.fxml
new file mode 100644
index 0000000..d4590b8
--- /dev/null
+++ b/src/main/ui/connection/Connection.fxml
@@ -0,0 +1,209 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<?import javafx.geometry.Insets?>
+<?import javafx.scene.control.Button?>
+<?import javafx.scene.control.ComboBox?>
+<?import javafx.scene.control.Label?>
+<?import javafx.scene.control.TextField?>
+<?import javafx.scene.layout.ColumnConstraints?>
+<?import javafx.scene.layout.GridPane?>
+<?import javafx.scene.layout.RowConstraints?>
+<?import javafx.scene.text.Font?>
+
+<GridPane alignment="CENTER" maxHeight="1.7976931348623157E308" maxWidth="1.7976931348623157E308" prefHeight="262.0" prefWidth="565.0" xmlns="http://javafx.com/javafx/8.0.112" xmlns:fx="http://javafx.com/fxml/1" fx:controller="main.ui.connection.ConnectionForm">
+    <columnConstraints>
+        <ColumnConstraints hgrow="SOMETIMES" minWidth="10.0" prefWidth="100.0" />
+    </columnConstraints>
+    <rowConstraints>
+        <RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
+        <RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
+    </rowConstraints>
+    <children>
+        <GridPane alignment="CENTER" GridPane.hgrow="SOMETIMES" GridPane.vgrow="SOMETIMES">
+            <columnConstraints>
+                <ColumnConstraints hgrow="SOMETIMES" maxWidth="364.0" minWidth="10.0" prefWidth="325.0" />
+                <ColumnConstraints hgrow="SOMETIMES" maxWidth="279.0" minWidth="10.0" prefWidth="252.0" />
+            </columnConstraints>
+            <rowConstraints>
+                <RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
+            </rowConstraints>
+            <children>
+                <GridPane GridPane.columnIndex="1">
+                    <columnConstraints>
+                        <ColumnConstraints hgrow="SOMETIMES" minWidth="10.0" prefWidth="100.0" />
+                    </columnConstraints>
+                    <rowConstraints>
+                        <RowConstraints maxHeight="32.0" minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
+                        <RowConstraints maxHeight="32.0" minHeight="10.0" prefHeight="29.0" vgrow="SOMETIMES" />
+                        <RowConstraints maxHeight="45.0" minHeight="10.0" prefHeight="43.0" vgrow="SOMETIMES" />
+                    </rowConstraints>
+                    <children>
+                        <GridPane>
+                            <columnConstraints>
+                                <ColumnConstraints hgrow="SOMETIMES" maxWidth="120.0" minWidth="10.0" prefWidth="68.0" />
+                                <ColumnConstraints hgrow="SOMETIMES" maxWidth="188.0" minWidth="10.0" prefWidth="184.0" />
+                            </columnConstraints>
+                            <rowConstraints>
+                                <RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
+                            </rowConstraints>
+                            <children>
+                                <Label text="Port:" GridPane.halignment="CENTER" GridPane.valignment="CENTER" />
+                        <ComboBox fx:id="inpPort" editable="true" GridPane.columnIndex="1">
+                           <GridPane.margin>
+                              <Insets right="15.0" />
+                           </GridPane.margin>
+                        </ComboBox>
+                            </children>
+                        </GridPane>
+                        <GridPane layoutX="10.0" layoutY="10.0" GridPane.rowIndex="1">
+                            <columnConstraints>
+                                <ColumnConstraints hgrow="SOMETIMES" maxWidth="120.0" minWidth="10.0" prefWidth="68.0" />
+                                <ColumnConstraints hgrow="SOMETIMES" maxWidth="188.0" minWidth="10.0" prefWidth="184.0" />
+                            </columnConstraints>
+                            <rowConstraints>
+                                <RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
+                            </rowConstraints>
+                            <children>
+                                <Label text="Host:" GridPane.halignment="CENTER" GridPane.valignment="CENTER" />
+                                <ComboBox fx:id="inpHost" editable="true" GridPane.columnIndex="1">
+                                    <GridPane.margin>
+                                        <Insets right="15.0" />
+                                    </GridPane.margin>
+                                </ComboBox>
+                            </children>
+                        </GridPane>
+                        <Button fx:id="btnConnect" alignment="CENTER" maxWidth="1.7976931348623157E308" onAction="#btnConnect_clicked" text="Connect" GridPane.halignment="CENTER" GridPane.rowIndex="2" GridPane.valignment="CENTER">
+                            <GridPane.margin>
+                                <Insets left="15.0" right="15.0" />
+                            </GridPane.margin></Button>
+                    </children>
+                    <opaqueInsets>
+                        <Insets />
+                    </opaqueInsets>
+                    <GridPane.margin>
+                        <Insets bottom="6.0" top="22.0" />
+                    </GridPane.margin>
+                </GridPane>
+                <GridPane style="-fx-border-color: #888888; -fx-border-radius: 5px;">
+                    <columnConstraints>
+                        <ColumnConstraints hgrow="SOMETIMES" maxWidth="140.0" minWidth="10.0" prefWidth="103.0" />
+                        <ColumnConstraints hgrow="SOMETIMES" maxWidth="191.0" minWidth="10.0" prefWidth="190.0" />
+                    </columnConstraints>
+                    <rowConstraints>
+                        <RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
+                        <RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
+                    </rowConstraints>
+                    <GridPane.margin>
+                        <Insets bottom="12.0" left="20.0" right="10.0" top="18.0" />
+                    </GridPane.margin>
+                    <children>
+                        <Label text="Public key:" textFill="#000000cc">
+                            <GridPane.margin>
+                                <Insets left="10.0" />
+                            </GridPane.margin>
+                        </Label>
+                        <Label text="Private key:" textFill="#000000cc" GridPane.rowIndex="1">
+                            <GridPane.margin>
+                                <Insets left="10.0" />
+                            </GridPane.margin>
+                        </Label>
+                        <TextField editable="false" GridPane.columnIndex="1">
+                            <opaqueInsets>
+                                <Insets />
+                            </opaqueInsets>
+                            <GridPane.margin>
+                                <Insets left="5.0" right="10.0" />
+                            </GridPane.margin>
+                        </TextField>
+                        <TextField editable="false" GridPane.columnIndex="1" GridPane.rowIndex="1">
+                            <GridPane.margin>
+                                <Insets left="5.0" right="10.0" />
+                            </GridPane.margin>
+                        </TextField>
+                    </children>
+                    <padding>
+                        <Insets bottom="7.0" top="7.0" />
+                    </padding>
+                </GridPane>
+            </children>
+        </GridPane>
+        <GridPane alignment="CENTER" GridPane.rowIndex="1">
+            <columnConstraints>
+                <ColumnConstraints hgrow="SOMETIMES" maxWidth="283.0" minWidth="10.0" prefWidth="197.0" />
+                <ColumnConstraints hgrow="SOMETIMES" maxWidth="380.0" minWidth="10.0" prefWidth="380.0" />
+            </columnConstraints>
+            <rowConstraints>
+                <RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
+            </rowConstraints>
+            <children>
+                <GridPane>
+                    <columnConstraints>
+                        <ColumnConstraints hgrow="SOMETIMES" minWidth="10.0" prefWidth="100.0" />
+                    </columnConstraints>
+                    <rowConstraints>
+                        <RowConstraints maxHeight="62.0" minHeight="10.0" prefHeight="53.0" vgrow="SOMETIMES" />
+                        <RowConstraints maxHeight="107.0" minHeight="10.0" prefHeight="85.0" vgrow="SOMETIMES" />
+                    </rowConstraints>
+                    <children>
+                        <Label text="Connection state:" textFill="#000000ba" GridPane.valignment="BOTTOM">
+                            <GridPane.margin>
+                                <Insets bottom="5.0" left="2.0" />
+                            </GridPane.margin>
+                            <font>
+                                <Font size="12.0" />
+                            </font>
+                        </Label>
+                        <Label fx:id="lblState" alignment="CENTER" maxHeight="1.7976931348623157E308" maxWidth="1.7976931348623157E308" style="-fx-border-color: #888888; -fx-border-radius: 5px;" text="Not connected" textAlignment="CENTER" textFill="#000000d1" GridPane.halignment="CENTER" GridPane.hgrow="ALWAYS" GridPane.rowIndex="1" GridPane.valignment="CENTER" GridPane.vgrow="ALWAYS" />
+                    </children>
+                    <GridPane.margin>
+                        <Insets bottom="14.0" left="20.0" />
+                    </GridPane.margin>
+                </GridPane>
+                <GridPane style="-fx-border-color: #888888; -fx-border-radius: 5px; " GridPane.columnIndex="1">
+                    <columnConstraints>
+                        <ColumnConstraints hgrow="SOMETIMES" maxWidth="140.0" minWidth="10.0" prefWidth="103.0" />
+                        <ColumnConstraints hgrow="SOMETIMES" maxWidth="191.0" minWidth="10.0" prefWidth="190.0" />
+                    </columnConstraints>
+                    <rowConstraints>
+                        <RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
+                        <RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
+                    </rowConstraints>
+                    <GridPane.margin>
+                        <Insets bottom="12.0" left="20.0" right="10.0" top="18.0" />
+                    </GridPane.margin>
+                    <children>
+                        <Label text="Game host:" textFill="#000000cc">
+                            <GridPane.margin>
+                                <Insets left="10.0" />
+                            </GridPane.margin>
+                        </Label>
+                        <Label text="Port:" textFill="#000000cc" GridPane.rowIndex="1">
+                            <GridPane.margin>
+                                <Insets left="10.0" />
+                            </GridPane.margin>
+                        </Label>
+                        <TextField fx:id="outHost" editable="false" GridPane.columnIndex="1">
+                            <opaqueInsets>
+                                <Insets />
+                            </opaqueInsets>
+                            <GridPane.margin>
+                                <Insets left="5.0" right="10.0" />
+                            </GridPane.margin>
+                        </TextField>
+                        <TextField fx:id="outPort" editable="false" GridPane.columnIndex="1" GridPane.rowIndex="1">
+                            <GridPane.margin>
+                                <Insets left="5.0" right="10.0" />
+                            </GridPane.margin>
+                        </TextField>
+                    </children>
+                    <padding>
+                        <Insets bottom="7.0" top="7.0" />
+                    </padding>
+                </GridPane>
+            </children>
+            <GridPane.margin>
+                <Insets />
+            </GridPane.margin>
+        </GridPane>
+    </children>
+</GridPane>
diff --git a/src/main/ui/connection/ConnectionForm.java b/src/main/ui/connection/ConnectionForm.java
new file mode 100644
index 0000000..6c331b5
--- /dev/null
+++ b/src/main/ui/connection/ConnectionForm.java
@@ -0,0 +1,97 @@
+package main.ui.connection;
+
+import javafx.application.Platform;
+import javafx.beans.InvalidationListener;
+import javafx.beans.Observable;
+import javafx.event.ActionEvent;
+import javafx.event.Event;
+import javafx.event.EventHandler;
+import javafx.event.EventType;
+import javafx.scene.control.Button;
+import javafx.scene.control.ComboBox;
+import javafx.scene.control.Label;
+import javafx.scene.control.TextField;
+import main.protocol.HConnection;
+import main.ui.SubForm;
+
+import java.io.IOException;
+
+public class ConnectionForm extends SubForm {
+
+    public ComboBox<String> inpPort;
+    public ComboBox<String> inpHost;
+    public Button btnConnect;
+    public Label lblState;
+    public TextField outHost;
+    public TextField outPort;
+
+    private boolean isBusy = false;
+
+    public void initialize() {
+        inpPort.getEditor().textProperty().addListener(observable -> {
+            try {
+                int i = Integer.parseInt(inpPort.getEditor().getText());
+                btnConnect.setDisable(i < 0 || i >= 256 * 256);
+            }
+            catch (Exception e) {
+                btnConnect.setDisable(true);
+            }
+        });
+
+        inpPort.getItems().addAll("30000", "38101");
+        inpHost.getItems().addAll("game-nl.habbo.com", "game-us.habbo.com");
+
+        inpPort.getSelectionModel().selectFirst();
+        inpHost.getSelectionModel().selectFirst();
+    }
+
+    public void onParentSet(){
+        getHConnection().addStateChangeListener((oldState, newState) -> Platform.runLater(() -> {
+            if (newState == HConnection.State.NOT_CONNECTED) {
+                inpHost.setDisable(false);
+                inpPort.setDisable(false);
+                lblState.setText("Not connected");
+                btnConnect.setText("Connect");
+                outHost.setText("");
+                outPort.setText("");
+            }
+            else if (oldState == HConnection.State.NOT_CONNECTED) {
+                inpHost.setDisable(true);
+                inpPort.setDisable(true);
+                btnConnect.setText("Abort");
+            }
+
+            if (newState == HConnection.State.CONNECTED) {
+                lblState.setText("Connected");
+                outHost.setText(getHConnection().getHost());
+                outPort.setText(getHConnection().getPort()+"");
+            }
+            if (newState == HConnection.State.WAITING_FOR_CLIENT) {
+                lblState.setText("Waiting for connection");
+            }
+
+        }));
+    }
+
+    public void btnConnect_clicked(ActionEvent actionEvent) {
+        if (!isBusy) {
+            isBusy = true;
+            getHConnection().prepare(inpHost.getEditor().getText(), Integer.parseInt(inpPort.getEditor().getText()));
+
+            if (HConnection.DEBUG) System.out.println("connecting");
+
+            new Thread(() -> {
+                try {
+                    getHConnection().start();
+                } catch (IOException e) {
+                    e.printStackTrace();
+                }
+            }).start();
+        }
+        else {
+            getHConnection().abort();
+            isBusy = false;
+        }
+    }
+    
+}
diff --git a/src/main/ui/injection/Injection.fxml b/src/main/ui/injection/Injection.fxml
new file mode 100644
index 0000000..fda9bd9
--- /dev/null
+++ b/src/main/ui/injection/Injection.fxml
@@ -0,0 +1,76 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<?import javafx.geometry.Insets?>
+<?import javafx.scene.control.Button?>
+<?import javafx.scene.control.TextArea?>
+<?import javafx.scene.layout.ColumnConstraints?>
+<?import javafx.scene.layout.GridPane?>
+<?import javafx.scene.layout.RowConstraints?>
+<?import javafx.scene.text.Font?>
+<?import javafx.scene.text.Text?>
+
+<GridPane maxHeight="1.7976931348623157E308" maxWidth="1.7976931348623157E308" prefHeight="262.0" prefWidth="565.0" xmlns="http://javafx.com/javafx/8.0.112" xmlns:fx="http://javafx.com/fxml/1" fx:controller="main.ui.injection.InjectionForm">
+    <columnConstraints>
+        <ColumnConstraints hgrow="SOMETIMES" minWidth="10.0" prefWidth="100.0" />
+    </columnConstraints>
+    <rowConstraints>
+      <RowConstraints maxHeight="232.0" minHeight="10.0" prefHeight="36.0" vgrow="SOMETIMES" />
+        <RowConstraints maxHeight="232.0" minHeight="10.0" prefHeight="194.0" vgrow="SOMETIMES" />
+        <RowConstraints maxHeight="121.0" minHeight="10.0" prefHeight="32.0" vgrow="SOMETIMES" />
+    </rowConstraints>
+    <children>
+      <GridPane GridPane.rowIndex="0">
+        <columnConstraints>
+          <ColumnConstraints hgrow="SOMETIMES" minWidth="10.0" prefWidth="100.0" />
+          <ColumnConstraints hgrow="SOMETIMES" minWidth="10.0" prefWidth="100.0" />
+        </columnConstraints>
+        <rowConstraints>
+          <RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
+        </rowConstraints>
+         <children>
+            <Text fx:id="lbl_corrruption" fill="#ee0404b2" strokeType="OUTSIDE" strokeWidth="0.0" text="isCorrupted: True">
+               <font>
+                  <Font name="System Italic" size="11.0" />
+               </font>
+            </Text>
+            <Text fx:id="lbl_pcktInfo" fill="#000000b2" nodeOrientation="LEFT_TO_RIGHT" strokeType="OUTSIDE" strokeWidth="0.0" text="header (id:NULL, length:0)" GridPane.columnIndex="1" GridPane.halignment="RIGHT">
+               <font>
+                  <Font name="System Italic" size="11.0" />
+               </font>
+            </Text>
+         </children>
+         <GridPane.margin>
+            <Insets left="13.0" right="13.0" top="4.0" />
+         </GridPane.margin>
+      </GridPane>
+        <TextArea fx:id="inputPacket" prefHeight="185.0" prefWidth="545.0" wrapText="true" GridPane.rowIndex="1">
+            <GridPane.margin>
+                <Insets bottom="5.0" left="10.0" right="10.0" />
+            </GridPane.margin>
+        </TextArea>
+        <GridPane GridPane.rowIndex="2">
+            <columnConstraints>
+                <ColumnConstraints hgrow="SOMETIMES" minWidth="10.0" prefWidth="100.0" />
+                <ColumnConstraints hgrow="SOMETIMES" minWidth="10.0" prefWidth="100.0" />
+            </columnConstraints>
+            <rowConstraints>
+                <RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
+            </rowConstraints>
+            <children>
+                <Button fx:id="btn_sendToServer" disable="true" maxHeight="1.7976931348623157E308" maxWidth="1.7976931348623157E308" mnemonicParsing="false" onAction="#sendToServer_clicked" text="Send to server" GridPane.halignment="CENTER" GridPane.valignment="CENTER">
+                    <GridPane.margin>
+                        <Insets bottom="5.0" left="10.0" right="10.0" top="5.0" />
+                    </GridPane.margin>
+                </Button>
+                <Button fx:id="btn_sendToClient" disable="true" maxHeight="1.7976931348623157E308" maxWidth="1.7976931348623157E308" mnemonicParsing="false" onAction="#sendToClient_clicked" text="Send to client" GridPane.columnIndex="1" GridPane.halignment="CENTER" GridPane.valignment="CENTER">
+                    <GridPane.margin>
+                        <Insets bottom="5.0" left="10.0" right="10.0" top="5.0" />
+                    </GridPane.margin>
+                </Button>
+            </children>
+        </GridPane>
+    </children>
+    <padding>
+        <Insets bottom="7.0" />
+    </padding>
+</GridPane>
diff --git a/src/main/ui/injection/InjectionForm.java b/src/main/ui/injection/InjectionForm.java
new file mode 100644
index 0000000..7975515
--- /dev/null
+++ b/src/main/ui/injection/InjectionForm.java
@@ -0,0 +1,62 @@
+package main.ui.injection;
+
+import javafx.application.Platform;
+import javafx.event.ActionEvent;
+import javafx.scene.control.Button;
+import javafx.scene.control.TextArea;
+import javafx.scene.paint.Color;
+import javafx.scene.paint.Paint;
+import javafx.scene.text.Text;
+import main.protocol.HConnection;
+import main.protocol.HPacket;
+import main.ui.SubForm;
+
+public class InjectionForm extends SubForm {
+    public TextArea inputPacket;
+    public Text lbl_corrruption;
+    public Text lbl_pcktInfo;
+    public Button btn_sendToServer;
+    public Button btn_sendToClient;
+
+    protected void onParentSet() {
+        getHConnection().addStateChangeListener((oldState, newState) -> Platform.runLater(() ->
+                updateUI()));
+
+        inputPacket.textProperty().addListener(event -> { Platform.runLater(() ->
+                updateUI());
+        });
+    }
+
+    private void updateUI() {
+        HPacket packet = new HPacket(inputPacket.getText());
+        if (!packet.isCorrupted()) {
+            lbl_corrruption.setText("isCorrupted: False");
+            lbl_corrruption.setFill(Paint.valueOf("Green"));
+            lbl_pcktInfo.setText("header (id:"+packet.headerId()+", length:"+packet.length()+")");
+
+            btn_sendToClient.setDisable(getHConnection().getState() != HConnection.State.CONNECTED);
+            btn_sendToServer.setDisable(getHConnection().getState() != HConnection.State.CONNECTED);
+        }
+        else {
+            lbl_corrruption.setText("isCorrupted: True");
+            lbl_corrruption.setFill(Paint.valueOf("#ee0404b2"));
+            lbl_pcktInfo.setText("header (id:NULL, length:"+packet.getBytesLength()+")");
+
+            btn_sendToClient.setDisable(true);
+            btn_sendToServer.setDisable(true);
+        }
+
+    }
+
+    public void sendToServer_clicked(ActionEvent actionEvent) {
+        HPacket packet = new HPacket(inputPacket.getText());
+        getHConnection().sendToServerAsync(packet);
+        writeToLog(Color.BLUE, "SS -> packet with id: " + packet.headerId());
+    }
+
+    public void sendToClient_clicked(ActionEvent actionEvent) {
+        HPacket packet = new HPacket(inputPacket.getText());
+        getHConnection().sendToClientAsync(packet);
+        writeToLog(Color.RED, "CS -> packet with id: " + packet.headerId());
+    }
+}
diff --git a/src/main/ui/logger/Logger.fxml b/src/main/ui/logger/Logger.fxml
new file mode 100644
index 0000000..d96cbcc
--- /dev/null
+++ b/src/main/ui/logger/Logger.fxml
@@ -0,0 +1,120 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<?import javafx.geometry.Insets?>
+<?import javafx.scene.control.Button?>
+<?import javafx.scene.control.CheckBox?>
+<?import javafx.scene.control.Label?>
+<?import javafx.scene.control.ScrollPane?>
+<?import javafx.scene.control.TextField?>
+<?import javafx.scene.layout.ColumnConstraints?>
+<?import javafx.scene.layout.GridPane?>
+<?import javafx.scene.layout.RowConstraints?>
+<?import javafx.scene.layout.VBox?>
+<?import javafx.scene.text.TextFlow?>
+
+<GridPane maxHeight="1.7976931348623157E308" maxWidth="1.7976931348623157E308" prefHeight="262.0" prefWidth="565.0" xmlns="http://javafx.com/javafx/8.0.112" xmlns:fx="http://javafx.com/fxml/1" fx:controller="main.ui.logger.LoggerForm">
+    <columnConstraints>
+        <ColumnConstraints hgrow="SOMETIMES" maxWidth="293.0" minWidth="10.0" prefWidth="242.0" />
+        <ColumnConstraints hgrow="SOMETIMES" maxWidth="390.0" minWidth="10.0" prefWidth="323.0" />
+    </columnConstraints>
+    <rowConstraints>
+        <RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
+    </rowConstraints>
+    <children>
+        <GridPane alignment="CENTER" maxHeight="1.7976931348623157E308" maxWidth="1.7976931348623157E308" prefHeight="5.0E9" prefWidth="5.0E9">
+            <columnConstraints>
+                <ColumnConstraints hgrow="SOMETIMES" minWidth="10.0" prefWidth="100.0" />
+            </columnConstraints>
+            <rowConstraints>
+                <RowConstraints maxHeight="138.0" minHeight="10.0" prefHeight="126.0" vgrow="SOMETIMES" />
+                <RowConstraints maxHeight="111.0" minHeight="10.0" prefHeight="109.0" vgrow="SOMETIMES" />
+            </rowConstraints>
+            <children>
+                <VBox prefHeight="200.0" prefWidth="100.0" spacing="8.0">
+                    <children>
+                        <GridPane prefHeight="52.0" prefWidth="214.0">
+                            <columnConstraints>
+                                <ColumnConstraints hgrow="SOMETIMES" maxWidth="160.0" minWidth="10.0" prefWidth="132.0" />
+                                <ColumnConstraints hgrow="SOMETIMES" maxWidth="110.0" minWidth="10.0" prefWidth="84.0" />
+                            </columnConstraints>
+                            <rowConstraints>
+                                <RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
+                            </rowConstraints>
+                            <children>
+                                <GridPane>
+                                    <columnConstraints>
+                                        <ColumnConstraints hgrow="SOMETIMES" minWidth="10.0" prefWidth="100.0" />
+                                    </columnConstraints>
+                                    <rowConstraints>
+                                        <RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
+                                        <RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
+                                    </rowConstraints>
+                                    <children>
+                                        <Label text="Packet size limit:" />
+                                        <TextField fx:id="txtPacketLimit" text="8000" GridPane.rowIndex="1">
+                                            <GridPane.margin>
+                                                <Insets right="8.0" />
+                                            </GridPane.margin>
+                                        </TextField>
+                                    </children>
+                                </GridPane>
+                                <Button fx:id="btnUpdate" alignment="CENTER" maxHeight="1.7976931348623157E308" maxWidth="1.7976931348623157E308" mnemonicParsing="false" onAction="#updatePacketLimit" prefHeight="44.0" prefWidth="62.0" text="Update" GridPane.columnIndex="1" GridPane.halignment="CENTER" GridPane.hgrow="ALWAYS" GridPane.valignment="CENTER" GridPane.vgrow="ALWAYS">
+                                    <GridPane.margin>
+                                        <Insets bottom="-1.0" left="6.0" right="6.0" />
+                                    </GridPane.margin>
+                                </Button>
+                            </children>
+                        </GridPane>
+                        <CheckBox fx:id="cbx_blockIn" mnemonicParsing="false" text="Block Incoming" />
+                        <CheckBox fx:id="cbx_blockOut" mnemonicParsing="false" text="Block Outgoing" />
+                    </children>
+                </VBox>
+                <VBox alignment="BOTTOM_LEFT" prefHeight="99.0" prefWidth="198.0" spacing="8.0" GridPane.rowIndex="1">
+                    <children>
+                        <CheckBox fx:id="cbx_showAdditional" mnemonicParsing="false" selected="true" text="Show additional data" />
+                        <CheckBox disable="true" mnemonicParsing="false" selected="true" text="Show packet structure" />
+                        <CheckBox fx:id="cbx_splitPackets" mnemonicParsing="false" selected="true" text="Split packets" />
+                    </children>
+                    <GridPane.margin>
+                        <Insets />
+                    </GridPane.margin>
+                </VBox>
+            </children>
+            <GridPane.margin>
+                <Insets bottom="12.0" left="17.0" top="15.0" />
+            </GridPane.margin>
+        </GridPane>
+        <GridPane style="-fx-border-color: #888; -fx-border-radius: 5px;" GridPane.columnIndex="1">
+            <columnConstraints>
+                <ColumnConstraints hgrow="SOMETIMES" minWidth="10.0" prefWidth="100.0" />
+            </columnConstraints>
+            <rowConstraints>
+                <RowConstraints maxHeight="125.0" minHeight="10.0" prefHeight="33.0" vgrow="SOMETIMES" />
+                <RowConstraints maxHeight="233.0" minHeight="10.0" prefHeight="191.0" vgrow="SOMETIMES" />
+            </rowConstraints>
+            <children>
+                <CheckBox fx:id="cbx_useLog" mnemonicParsing="false" selected="true" text="Use history log">
+                    <GridPane.margin>
+                        <Insets left="5.0" />
+                    </GridPane.margin>
+                </CheckBox>
+                <ScrollPane maxHeight="1.7976931348623157E308" maxWidth="1.7976931348623157E308" style="-fx-border-color: #888888; -fx-border-radius: 1px; -fx-background: #FFFFFF;" GridPane.hgrow="ALWAYS" GridPane.rowIndex="1" GridPane.vgrow="ALWAYS">
+                    <TextFlow fx:id="txt_logField" style=" -fx-background-color: #FFFFFF;">
+                        <GridPane.margin>
+                            <Insets />
+                        </GridPane.margin>
+                    </TextFlow>
+               <padding>
+                  <Insets bottom="5.0" left="5.0" right="5.0" top="5.0" />
+               </padding>
+                </ScrollPane>
+            </children>
+            <GridPane.margin>
+                <Insets bottom="10.0" left="15.0" right="15.0" top="10.0" />
+            </GridPane.margin>
+            <padding>
+                <Insets bottom="10.0" left="7.0" right="7.0" top="6.0" />
+            </padding>
+        </GridPane>
+    </children>
+</GridPane>
diff --git a/src/main/ui/logger/LoggerForm.java b/src/main/ui/logger/LoggerForm.java
new file mode 100644
index 0000000..abfd249
--- /dev/null
+++ b/src/main/ui/logger/LoggerForm.java
@@ -0,0 +1,157 @@
+package main.ui.logger;
+
+import javafx.application.Platform;
+import javafx.event.ActionEvent;
+import javafx.scene.control.Button;
+import javafx.scene.control.CheckBox;
+import javafx.scene.control.TextField;
+import javafx.scene.input.KeyCode;
+import javafx.scene.paint.Color;
+import javafx.scene.text.Text;
+import javafx.scene.text.TextFlow;
+import main.protocol.HConnection;
+import main.protocol.HMessage;
+import main.ui.SubForm;
+
+import java.util.Calendar;
+import java.util.HashMap;
+import java.util.Map;
+
+public class LoggerForm extends SubForm {
+
+
+    public TextField txtPacketLimit;
+    public CheckBox cbx_blockIn;
+    public CheckBox cbx_blockOut;
+    public CheckBox cbx_showAdditional;
+    public CheckBox cbx_splitPackets;
+    public CheckBox cbx_useLog;
+    public TextFlow txt_logField;
+    public Button btnUpdate;
+
+    private int packetLimit = 8000;
+
+    public final static Map<String, String> colorizePackets;
+
+    static {
+        //FOR GNOME ONLY, shows up colorized packets
+        colorizePackets = new HashMap<>();
+        colorizePackets.put("BLOCKED", (char)27 + "[35m");     // some kind of grey
+        colorizePackets.put("INCOMING", (char)27 + "[31m");    // red
+        colorizePackets.put("OUTGOING", (char)27 + "[34m");    // blue
+        colorizePackets.put("REPLACED", (char)27 + "[33m");    // yellow
+
+        // others:
+        colorizePackets.put("INJECTED", "");
+        colorizePackets.put("SKIPPED", (char)27 + "[36m");
+        colorizePackets.put("DEFAULT", (char)27 + "[0m");
+
+        if (System.getenv("XDG_CURRENT_DESKTOP") == null || !System.getenv("XDG_CURRENT_DESKTOP").toLowerCase().contains("gnome")) {
+            for (String key : colorizePackets.keySet()) {
+                colorizePackets.put(key, "");
+            }
+        }
+    }
+
+
+    public void onParentSet(){
+
+        getHConnection().addStateChangeListener((oldState, newState) -> Platform.runLater(() -> {
+            if (newState == HConnection.State.PREPARING) {
+                miniLogText(Color.ORANGE, "Connecting to "+getHConnection().getDomain() + ":" + getHConnection().getPort());
+            }
+            if (newState == HConnection.State.CONNECTED) {
+                miniLogText(Color.GREEN, "Connecting to "+getHConnection().getDomain() + ":" + getHConnection().getPort());
+            }
+            if (newState == HConnection.State.NOT_CONNECTED) {
+                miniLogText(Color.RED, "End of connection");
+            }
+        }));
+
+        getHConnection().addTrafficListener(2, message -> { Platform.runLater(() -> {
+            if (message.getDestination() == HMessage.Side.TOCLIENT && cbx_blockIn.isSelected() ||
+                    message.getDestination() == HMessage.Side.TOSERVER && cbx_blockOut.isSelected()) return;
+
+            String splitter = cbx_splitPackets.isSelected() ? "-----------------------------------\n" : "";
+
+            String type = message.getDestination() == HMessage.Side.TOCLIENT ?"" +
+                            colorizePackets.get("INCOMING") + "INCOMING" :
+                            colorizePackets.get("OUTGOING") + "OUTGOING";
+
+            String additionalData = " ";
+            if (!message.isCorrupted() && cbx_showAdditional.isSelected()) {
+                additionalData = " (h:"+ message.getPacket().headerId() +", l:"+message.getPacket().length()+") ";
+            }
+
+            String arrow = "--> ";
+
+            String packet = message.isCorrupted() ?
+                    message.getPacket().getBytesLength() + " (encrypted)": // message.getPacket().toString() : // TEMP CODE TO VIEW ENCRYPTED BODY
+                    message.getPacket().length() < packetLimit ?
+                            message.getPacket().toString() :
+                            colorizePackets.get("SKIPPED") + "<packet skipped (length >= " + (packetLimit) + ")>";
+
+
+            String skipStyle = colorizePackets.get("DEFAULT");
+
+            String isBlocked = message.isBlocked() ? colorizePackets.get("BLOCKED") + "[BLOCKED] " : "";
+            String isEdited = !message.getPacket().isReplaced() || message.isBlocked() ? "" : colorizePackets.get("REPLACED") + "[REPLACED] ";
+            System.out.println(splitter + isBlocked + isEdited + type + additionalData + arrow + packet + skipStyle);
+
+        });
+        });
+    }
+
+    public void updatePacketLimit(ActionEvent actionEvent) {
+        packetLimit = Integer.parseInt(txtPacketLimit.getText());
+    }
+
+    @SuppressWarnings("Duplicates")
+    public void initialize() {
+        txtPacketLimit.textProperty().addListener(observable -> {
+            boolean isInt = true;
+
+            try {
+                Integer.parseInt(txtPacketLimit.getText());
+            } catch (NumberFormatException e) {
+                isInt = false;
+            }
+
+            btnUpdate.setDisable(!isInt);
+        });
+
+        txtPacketLimit.setOnKeyPressed(event -> {
+            if(event.getCode().equals(KeyCode.ENTER) && !btnUpdate.isDisable()) {
+                updatePacketLimit(null);
+            }
+        });
+    }
+
+    public void miniLogText(Color color, String text) {
+        if (cbx_useLog.isSelected()) {
+            String color2 = "#" + color.toString().substring(2, 8);
+
+            Calendar rightNow = Calendar.getInstance();
+            String hour = addToNumber(""+rightNow.get(Calendar.HOUR_OF_DAY));
+            String minutes = addToNumber(""+rightNow.get(Calendar.MINUTE));
+            String seconds = addToNumber(""+rightNow.get(Calendar.SECOND));
+            String timestamp = "["+hour+":"+minutes+":"+seconds+"] ";
+
+            timestamp = timestamp.replace(" ", "\u00A0"); // disable automatic linebreaks
+            Text time = new Text(timestamp);
+            time.setStyle("-fx-opacity: "+0.5+";");
+
+            text = text.replace(" ", "\u00A0");
+            Text otherText = new Text(text + "\n");
+            otherText.setStyle("-fx-fill: "+color2+";");
+
+            txt_logField.getChildren().addAll(time, otherText);
+        }
+    }
+
+    private String addToNumber(String text)	{
+        if (text.length() == 1) text = "0" + text;
+        return text;
+    }
+
+}
diff --git a/src/main/ui/tools/Tools.fxml b/src/main/ui/tools/Tools.fxml
new file mode 100644
index 0000000..362b480
--- /dev/null
+++ b/src/main/ui/tools/Tools.fxml
@@ -0,0 +1,165 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<?import javafx.geometry.Insets?>
+<?import javafx.scene.control.Button?>
+<?import javafx.scene.control.Label?>
+<?import javafx.scene.control.TextArea?>
+<?import javafx.scene.control.TextField?>
+<?import javafx.scene.layout.ColumnConstraints?>
+<?import javafx.scene.layout.GridPane?>
+<?import javafx.scene.layout.RowConstraints?>
+<?import javafx.scene.text.Font?>
+
+<GridPane maxHeight="1.7976931348623157E308" maxWidth="1.7976931348623157E308" prefHeight="262.0" prefWidth="565.0" xmlns="http://javafx.com/javafx/8.0.112" xmlns:fx="http://javafx.com/fxml/1" fx:controller="main.ui.tools.ToolsForm">
+   <rowConstraints>
+      <RowConstraints maxHeight="158.0" minHeight="10.0" prefHeight="134.0" vgrow="SOMETIMES" />
+      <RowConstraints maxHeight="141.0" minHeight="10.0" prefHeight="128.0" vgrow="SOMETIMES" />
+   </rowConstraints>
+   <columnConstraints>
+       <ColumnConstraints hgrow="SOMETIMES" maxWidth="683.0" minWidth="10.0" prefWidth="276.0" />
+   </columnConstraints>
+   <children>
+      <GridPane>
+        <columnConstraints>
+          <ColumnConstraints hgrow="SOMETIMES" minWidth="10.0" prefWidth="100.0" />
+        </columnConstraints>
+        <rowConstraints>
+          <RowConstraints maxHeight="53.0" minHeight="10.0" prefHeight="29.0" vgrow="SOMETIMES" />
+          <RowConstraints maxHeight="108.0" minHeight="10.0" prefHeight="100.0" vgrow="SOMETIMES" />
+        </rowConstraints>
+         <children>
+            <GridPane style="-fx-border-color: #888888; -fx-border-radius: 5px;" GridPane.rowIndex="1">
+              <columnConstraints>
+                  <ColumnConstraints hgrow="SOMETIMES" maxWidth="103.0" minWidth="10.0" prefWidth="73.0" />
+                  <ColumnConstraints hgrow="SOMETIMES" maxWidth="159.0" minWidth="10.0" prefWidth="146.0" />
+                  <ColumnConstraints hgrow="SOMETIMES" maxWidth="129.0" minWidth="10.0" prefWidth="89.0" />
+                <ColumnConstraints hgrow="SOMETIMES" maxWidth="148.0" minWidth="10.0" prefWidth="89.0" />
+                <ColumnConstraints hgrow="SOMETIMES" maxWidth="167.0" minWidth="10.0" prefWidth="146.0" />
+              </columnConstraints>
+              <rowConstraints>
+                <RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
+                <RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
+              </rowConstraints>
+               <GridPane.margin>
+                  <Insets />
+               </GridPane.margin>
+               <children>
+                  <Label alignment="CENTER" text="Integer:">
+                     <GridPane.margin>
+                        <Insets left="10.0" />
+                     </GridPane.margin></Label>
+                  <TextField fx:id="txt_intDecoded" maxHeight="1.7976931348623157E308" maxWidth="1.7976931348623157E308" GridPane.columnIndex="1" GridPane.hgrow="ALWAYS">
+                     <GridPane.margin>
+                        <Insets bottom="7.0" left="5.0" right="5.0" top="7.0" />
+                     </GridPane.margin></TextField>
+                  <Button fx:id="btnEncodeInt" disable="true" maxHeight="1.7976931348623157E308" maxWidth="1.7976931348623157E308" mnemonicParsing="false" onAction="#btnEncodeInt_clicked" text="Encode" GridPane.columnIndex="2" GridPane.halignment="CENTER">
+                     <GridPane.margin>
+                        <Insets bottom="7.0" left="5.0" right="5.0" top="7.0" />
+                     </GridPane.margin></Button>
+                  <Button fx:id="btnDecodeInt" disable="true" maxHeight="1.7976931348623157E308" maxWidth="1.7976931348623157E308" mnemonicParsing="false" onAction="#btnDecodeInt_clicked" text="Decode" GridPane.columnIndex="3" GridPane.halignment="CENTER">
+                     <GridPane.margin>
+                        <Insets bottom="7.0" left="5.0" right="5.0" top="7.0" />
+                     </GridPane.margin></Button>
+                  <TextField fx:id="txt_intEncoded" maxHeight="1.7976931348623157E308" maxWidth="1.7976931348623157E308" GridPane.columnIndex="4">
+                     <GridPane.margin>
+                        <Insets bottom="7.0" left="5.0" right="5.0" top="7.0" />
+                     </GridPane.margin>
+                  </TextField>
+
+                   <Label alignment="CENTER" text="Ushort:" GridPane.rowIndex="1">
+                       <GridPane.margin>
+                           <Insets left="10.0" />
+                       </GridPane.margin></Label>
+                   <TextField fx:id="txt_ushortDecoded" maxHeight="1.7976931348623157E308" maxWidth="1.7976931348623157E308" GridPane.columnIndex="1" GridPane.hgrow="ALWAYS" GridPane.rowIndex="1">
+                       <GridPane.margin>
+                           <Insets bottom="7.0" left="5.0" right="5.0" top="7.0" />
+                       </GridPane.margin></TextField>
+                   <Button fx:id="btnEncodeUShort" disable="true" maxHeight="1.7976931348623157E308" maxWidth="1.7976931348623157E308" mnemonicParsing="false" onAction="#btnEncodeUShort_clicked" text="Encode" GridPane.columnIndex="2" GridPane.halignment="CENTER" GridPane.rowIndex="1">
+                       <GridPane.margin>
+                           <Insets bottom="7.0" left="5.0" right="5.0" top="7.0" />
+                       </GridPane.margin></Button>
+                   <Button fx:id="btnDecodeUshort" disable="true" maxHeight="1.7976931348623157E308" maxWidth="1.7976931348623157E308" mnemonicParsing="false" onAction="#btnDecodeUshort_clicked" text="Decode" GridPane.columnIndex="3" GridPane.halignment="CENTER" GridPane.rowIndex="1">
+                       <GridPane.margin>
+                           <Insets bottom="7.0" left="5.0" right="5.0" top="7.0" />
+                       </GridPane.margin></Button>
+                   <TextField fx:id="txt_ushortEncoded" maxHeight="1.7976931348623157E308" maxWidth="1.7976931348623157E308" GridPane.columnIndex="4" GridPane.rowIndex="1">
+                       <GridPane.margin>
+                           <Insets bottom="7.0" left="5.0" right="5.0" top="7.0" />
+                       </GridPane.margin>
+                   </TextField>
+
+               </children>
+            </GridPane>
+            <Label text="Encoding/decoding" textFill="#000000cc">
+               <GridPane.margin>
+                  <Insets left="6.0" top="5.0" />
+               </GridPane.margin>
+               <font>
+                  <Font name="System Italic" size="12.0" />
+               </font>
+            </Label>
+         </children>
+         <GridPane.margin>
+            <Insets left="10.0" right="10.0" top="5.0" />
+         </GridPane.margin>
+      </GridPane>
+      <GridPane layoutX="20.0" layoutY="15.0" GridPane.rowIndex="1">
+         <columnConstraints>
+            <ColumnConstraints hgrow="SOMETIMES" minWidth="10.0" prefWidth="100.0" />
+         </columnConstraints>
+         <rowConstraints>
+            <RowConstraints maxHeight="53.0" minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
+            <RowConstraints maxHeight="104.0" minHeight="10.0" prefHeight="99.0" vgrow="SOMETIMES" />
+         </rowConstraints>
+         <children>
+            <GridPane style="-fx-border-color: #888888; -fx-border-radius: 5px;" GridPane.rowIndex="1">
+               <columnConstraints>
+                  <ColumnConstraints hgrow="SOMETIMES" maxWidth="190.0" minWidth="10.0" prefWidth="180.0" />
+                  <ColumnConstraints hgrow="SOMETIMES" maxWidth="130.0" minWidth="10.0" prefWidth="90.0" />
+                  <ColumnConstraints hgrow="SOMETIMES" maxWidth="118.0" minWidth="10.0" prefWidth="90.0" />
+                  <ColumnConstraints hgrow="SOMETIMES" maxWidth="219.0" minWidth="10.0" prefWidth="180.0" />
+               </columnConstraints>
+               <rowConstraints>
+                  <RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
+               </rowConstraints>
+               <GridPane.margin>
+                  <Insets />
+               </GridPane.margin>
+               <children>
+                  <Button disable="true" maxHeight="1.7976931348623157E308" maxWidth="1.7976931348623157E308" mnemonicParsing="false" text="------&gt;" GridPane.columnIndex="1" GridPane.halignment="CENTER">
+                     <GridPane.margin>
+                        <Insets bottom="7.0" left="5.0" right="5.0" top="7.0" />
+                     </GridPane.margin>
+                  </Button>
+                  <TextArea disable="true" maxHeight="1.7976931348623157E308" maxWidth="1.7976931348623157E308" prefHeight="200.0" prefWidth="200.0" GridPane.halignment="CENTER">
+                     <GridPane.margin>
+                        <Insets bottom="7.0" left="7.0" right="5.0" top="7.0" />
+                     </GridPane.margin>
+                  </TextArea>
+                  <Button disable="true" maxHeight="1.7976931348623157E308" maxWidth="1.7976931348623157E308" mnemonicParsing="false" text="&lt;------" GridPane.columnIndex="2" GridPane.halignment="CENTER">
+                     <GridPane.margin>
+                        <Insets bottom="7.0" left="5.0" right="5.0" top="7.0" />
+                     </GridPane.margin>
+                  </Button>
+                  <TextArea disable="true" maxHeight="1.7976931348623157E308" maxWidth="1.7976931348623157E308" prefHeight="200.0" prefWidth="200.0" GridPane.columnIndex="3" GridPane.halignment="CENTER">
+                     <GridPane.margin>
+                        <Insets bottom="7.0" left="5.0" right="7.0" top="7.0" />
+                     </GridPane.margin>
+                  </TextArea>
+               </children>
+            </GridPane>
+            <Label text="Packet &lt;-&gt; expression" textFill="#000000cc">
+               <GridPane.margin>
+                  <Insets left="6.0" top="2.0" />
+               </GridPane.margin>
+               <font>
+                  <Font name="System Italic" size="12.0" />
+               </font>
+            </Label>
+         </children>
+         <GridPane.margin>
+            <Insets bottom="7.0" left="10.0" right="10.0" top="5.0" />
+         </GridPane.margin>
+      </GridPane>
+   </children>
+</GridPane>
diff --git a/src/main/ui/tools/ToolsForm.java b/src/main/ui/tools/ToolsForm.java
new file mode 100644
index 0000000..9242e43
--- /dev/null
+++ b/src/main/ui/tools/ToolsForm.java
@@ -0,0 +1,117 @@
+package main.ui.tools;
+
+import javafx.event.ActionEvent;
+import javafx.event.EventHandler;
+import javafx.scene.control.Button;
+import javafx.scene.control.TextField;
+import javafx.scene.input.KeyCode;
+import javafx.scene.input.KeyEvent;
+import main.protocol.HPacket;
+import main.ui.SubForm;
+
+import java.nio.ByteBuffer;
+import java.nio.ByteOrder;
+
+
+public class ToolsForm extends SubForm {
+    public TextField txt_intDecoded;
+    public TextField txt_intEncoded;
+    public TextField txt_ushortDecoded;
+    public TextField txt_ushortEncoded;
+    public Button btnEncodeInt;
+    public Button btnDecodeInt;
+    public Button btnEncodeUShort;
+    public Button btnDecodeUshort;
+
+
+    public void initialize() {
+        txt_intDecoded.textProperty().addListener(observable -> {
+            boolean isInt = true;
+
+            try {
+                Integer.parseInt(txt_intDecoded.getText());
+            } catch (NumberFormatException e) {
+                isInt = false;
+            }
+
+            btnEncodeInt.setDisable(!isInt);
+        });
+
+        txt_intDecoded.setOnKeyPressed(event -> {
+            if(event.getCode().equals(KeyCode.ENTER) && !btnEncodeInt.isDisable()) {
+                btnEncodeInt_clicked(null);
+            }
+        });
+
+        //---------------
+
+        txt_ushortDecoded.textProperty().addListener(observable -> {
+            boolean isDouble = true;
+
+            try {
+                int res = Integer.parseInt(txt_ushortDecoded.getText());
+                if (res < 0 || res >= (256*256)) isDouble = false;
+            } catch (NumberFormatException e) {
+                isDouble = false;
+            }
+            btnEncodeUShort.setDisable(!isDouble);
+        });
+
+        txt_ushortDecoded.setOnKeyPressed(event -> {
+            if(event.getCode().equals(KeyCode.ENTER) && !btnEncodeUShort.isDisable()) {
+                btnEncodeUShort_clicked(null);
+            }
+        });
+
+        //----------------
+
+        txt_intEncoded.textProperty().addListener(observable -> {
+            HPacket packet = new HPacket(txt_intEncoded.getText());
+            btnDecodeInt.setDisable(packet.getBytesLength() != 4);
+        });
+
+        txt_intEncoded.setOnKeyPressed(event -> {
+            if(event.getCode().equals(KeyCode.ENTER) && !btnDecodeInt.isDisable()) {
+                btnDecodeInt_clicked(null);
+            }
+        });
+
+        //----------------
+
+        txt_ushortEncoded.textProperty().addListener(observable -> {
+            HPacket packet = new HPacket(txt_ushortEncoded.getText());
+            btnDecodeUshort.setDisable(packet.getBytesLength() != 2);
+        });
+
+        txt_ushortEncoded.setOnKeyPressed(event -> {
+            if(event.getCode().equals(KeyCode.ENTER) && !btnDecodeUshort.isDisable()) {
+                btnDecodeUshort_clicked(null);
+            }
+        });
+
+    }
+
+    public void btnEncodeInt_clicked(ActionEvent actionEvent) {
+        ByteBuffer b = ByteBuffer.allocate(4);
+        b.putInt(Integer.parseInt(txt_intDecoded.getText()));
+
+        HPacket packet = new HPacket(b.array());
+        txt_intEncoded.setText(packet.toString());
+    }
+
+    public void btnDecodeInt_clicked(ActionEvent actionEvent) {
+        txt_intDecoded.setText(new HPacket(txt_intEncoded.getText()).readInteger(0) + "");
+    }
+
+    public void btnEncodeUShort_clicked(ActionEvent actionEvent) {
+        ByteBuffer b = ByteBuffer.allocate(4);
+        b.putInt(Integer.parseInt(txt_ushortDecoded.getText()));
+
+        HPacket packet = new HPacket(new byte[]{b.array()[2], b.array()[3]});
+        txt_ushortEncoded.setText(packet.toString());
+    }
+
+    public void btnDecodeUshort_clicked(ActionEvent actionEvent) {
+        txt_ushortDecoded.setText(new HPacket(txt_ushortEncoded.getText()).readUshort(0) + "");
+    }
+}