Example usage for io.netty.buffer ByteBuf readShort

Introduction

In this page you can find the example usage for io.netty.buffer ByteBuf readShort.

Prototype

public abstract short readShort();

Source Link

Document

Gets a 16-bit short integer at the current readerIndex and increases the readerIndex by 2 in this buffer.

Usage

From source file:com.quavo.osrs.network.protocol.codec.login.LoginDecoder.java

License:Open Source License

@Override
protected void decode(ChannelHandlerContext ctx, ByteBuf in, List<Object> out) throws Exception {
    if (!in.isReadable() || in.readableBytes() < 8) {
        return;//  w w w . j  a va 2s  .c o  m
    }

    LoginType.getType(in.readByte()).filter(a -> in.readShort() == in.readableBytes())
            .ifPresent(a -> out.add(new LoginRequest(this, a, in.readInt())));
}

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From source file:com.quavo.osrs.network.protocol.codec.login.world.WorldLoginDecoder.java

License:Open Source License

@Override
protected void decode(ChannelHandlerContext ctx, ByteBuf in, List<Object> out) throws Exception {
    if (!in.isReadable()) {
        return;/*from  w ww  . j av a 2  s. c om*/
    }

    ByteBuf buffer = ByteBufUtils.encipherRSA(in, EXPONENT, MODULUS);
    int id = buffer.readByte();
    if (id != 1) {
        return;
    }
    int clearanceId = buffer.readByte();
    int[] clientKeys = new int[4];
    for (int index = 0; index < clientKeys.length; index++) {
        clientKeys[index] = buffer.readInt();
    }
    LoginClearance clearance = LoginClearance.getType(clearanceId).get().read(buffer);
    String password = ByteBufUtils.readString(buffer);
    buffer = ByteBufUtils.decipherXTEA(in, clientKeys);
    String username = ByteBufUtils.readString(buffer);
    DisplayMode mode = DisplayMode.getDisplayMode(buffer.readByte()).get();
    int width = buffer.readShort();
    int height = buffer.readShort();
    DisplayInformation display = new DisplayInformation(mode, width, height);
    buffer.skipBytes(24);
    String token = ByteBufUtils.readString(buffer);
    buffer.readInt();
    MachineInformation machineInformation = MachineInformation.decode(buffer);
    buffer.readInt();
    buffer.readInt();
    buffer.readInt();
    buffer.readInt();
    buffer.readByte();
    int[] crc = new int[16];
    for (int index = 0; index < crc.length; index++) {
        crc[index] = buffer.readInt();
    }
    int[] serverKeys = new int[4];
    for (int index = 0; index < serverKeys.length; index++) {
        serverKeys[index] = clientKeys[index] + 50;
    }
    IsaacRandomPair isaacPair = new IsaacRandomPair(new IsaacRandom(serverKeys), new IsaacRandom(clientKeys));

    out.add(new WorldLoginRequest(this, type, username, password, clearance, display, machineInformation, crc,
            token, isaacPair));
}

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From source file:com.quavo.util.buf.ByteBufUtils.java

License:Open Source License

/**
 * Encrypts a {@link ByteBuf} using with a exponent and modulus.
 * //ww w.j  a v  a 2  s . com
 * @param buffer The {@link ByteBuf} to encrypt.
 * @param exponent The exponent.
 * @param modulus The modulus.
 * @return The encrypted buffer.
 */
public static ByteBuf encipherRSA(ByteBuf buffer, BigInteger exponent, BigInteger modulus) {
    byte[] bytes = new byte[buffer.readShort()];
    buffer.readBytes(bytes);
    return Unpooled.wrappedBuffer(new BigInteger(bytes).modPow(exponent, modulus).toByteArray());
}

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From source file:com.rs3e.network.protocol.codec.login.LoginDecoder.java

License:Open Source License

/**
 * Decodes the payload of login.//from w w  w.  j  a v a 2  s.c om
 * 
 * @param ctx
 *            The channel handler context.
 * @param buf
 *            The byte buf for writing data.
 * @return The login message, or {@code Null}.
 */
/*
 * private Object decodePayload(ChannelHandlerContext ctx, ByteBuf buf) {
 * if(buf.readable()) {
 * 
 * int loginType = buf.readByte(); System.out.println("Login Type: " +
 * loginType); } return null; }
 */

private Object decodeLobbyPayload(ChannelHandlerContext context, ByteBuf buffer) throws ProtocolException {
    int secureBufferSize = buffer.readShort() & 0xFFFF;
    if (buffer.readableBytes() < secureBufferSize) {
        throw new ProtocolException("Invalid secure buffer size.");
    }

    byte[] secureBytes = new byte[secureBufferSize];
    buffer.readBytes(secureBytes);

    ByteBuf secureBuffer = Unpooled.wrappedBuffer(
            new BigInteger(secureBytes).modPow(Constants.JS5PrivateKey, Constants.JS5ModulusKey).toByteArray());
    int blockOpcode = secureBuffer.readUnsignedByte();

    if (blockOpcode != 10) {
        throw new ProtocolException("Invalid block opcode.");
    }

    int[] xteaKey = new int[4];
    for (int key = 0; key < xteaKey.length; key++) {
        xteaKey[key] = secureBuffer.readInt();
    }

    long vHash = secureBuffer.readLong();
    if (vHash != 0L) {
        throw new ProtocolException("Invalid login virtual hash.");
    }

    ByteBufUtils.readString(secureBuffer);

    long[] loginSeeds = new long[2];
    for (int seed = 0; seed < loginSeeds.length; seed++) {
        loginSeeds[seed] = secureBuffer.readLong();
    }

    byte[] xteaBlock = new byte[buffer.readableBytes()];
    buffer.readBytes(xteaBlock);
    return null;
    // return new LoginPayload(password, xteaKey, xteaBlock);
}

---

From source file:com.rs3e.network.protocol.codec.login.LoginDecoder.java

License:Open Source License

private Object decodeConnectionType(ByteBuf buffer) {
    int loginType = buffer.readUnsignedByte();
    if (loginType != 16 && loginType != 18 && loginType != 19) {
        return new LoginResponse(LoginResponse.BAD_LOGIN_PACKET);
        // throw new ProtocolException("Invalid login opcode: " +
        // loginType);
    }/*from   www .j av  a 2s .  co m*/

    currentLoginType = loginType == 19 ? LoginType.LOBBY : LoginType.GAME;
    loginSize = buffer.readShort() & 0xFFFF;

    state = LoginState.CLIENT_DETAILS;
    return null;
}

---

From source file:com.rs3e.network.protocol.login.LoginDecoder.java

License:Open Source License

/**
 * Decodes the payload of login.//from ww w .  jav  a2 s .  c  o m
 * @param ctx The channel handler context.
 * @param buf The byte buf for writing data.
 * @return The login message, or {@code Null}.
 */
/*private Object decodePayload(ChannelHandlerContext ctx, ByteBuf buf) {
   if(buf.readable()) {
         
 int loginType = buf.readByte();
 System.out.println("Login Type: " + loginType);
   }
   return null;
}*/

private Object decodeLobbyPayload(ChannelHandlerContext context, ByteBuf buffer) throws ProtocolException {
    int secureBufferSize = buffer.readShort() & 0xFFFF;
    if (buffer.readableBytes() < secureBufferSize) {
        throw new ProtocolException("Invalid secure buffer size.");
    }

    byte[] secureBytes = new byte[secureBufferSize];
    buffer.readBytes(secureBytes);

    ByteBuf secureBuffer = Unpooled.wrappedBuffer(
            new BigInteger(secureBytes).modPow(Constants.JS5PrivateKey, Constants.JS5ModulusKey).toByteArray());
    int blockOpcode = secureBuffer.readUnsignedByte();

    if (blockOpcode != 10) {
        throw new ProtocolException("Invalid block opcode.");
    }

    int[] xteaKey = new int[4];
    for (int key = 0; key < xteaKey.length; key++) {
        xteaKey[key] = secureBuffer.readInt();
    }

    long vHash = secureBuffer.readLong();
    if (vHash != 0L) {
        throw new ProtocolException("Invalid login virtual hash.");
    }

    String password = ByteBufUtils.readString(secureBuffer);

    long[] loginSeeds = new long[2];
    for (int seed = 0; seed < loginSeeds.length; seed++) {
        loginSeeds[seed] = secureBuffer.readLong();
    }

    byte[] xteaBlock = new byte[buffer.readableBytes()];
    buffer.readBytes(xteaBlock);
    return null;
    //return new LoginPayload(password, xteaKey, xteaBlock);   
}

---

From source file:com.rs3e.network.protocol.login.LoginDecoder.java

License:Open Source License

private Object decodeConnectionType(ByteBuf buffer) {
    int loginType = buffer.readUnsignedByte();
    if (loginType != 16 && loginType != 18 && loginType != 19) {
        return new LoginResponse(LoginResponse.BAD_LOGIN_PACKET);
        //throw new ProtocolException("Invalid login opcode: " + loginType);
    }/*from  w  w w .  j  a  va 2 s . c  o m*/

    currentLoginType = loginType == 19 ? LoginType.LOBBY : LoginType.GAME;
    loginSize = buffer.readShort() & 0xFFFF;

    state = LoginState.CLIENT_DETAILS;
    return null;
}

---

From source file:com.rs3e.network.session.impl.LoginSession.java

License:Open Source License

private void decodeLobbyLogin(ByteBuf buffer) {
    int secureBufferSize = buffer.readShort() & 0xFFFF;
    if (buffer.readableBytes() < secureBufferSize) {
        channel.write(new LoginResponse(LoginResponse.BAD_LOGIN_PACKET));
        return;/*w w w. ja  va  2 s.c  om*/
    }

    byte[] secureBytes = new byte[secureBufferSize];
    buffer.readBytes(secureBytes);

    ByteBuf secureBuffer = Unpooled.wrappedBuffer(
            new BigInteger(secureBytes).modPow(Constants.JS5PrivateKey, Constants.JS5ModulusKey).toByteArray());
    int blockOpcode = secureBuffer.readUnsignedByte();

    if (blockOpcode != 10) {
        channel.write(new LoginResponse(LoginResponse.BAD_LOGIN_PACKET));
        return;
    }

    int[] xteaKey = new int[4];
    for (int key = 0; key < xteaKey.length; key++) {
        xteaKey[key] = secureBuffer.readInt();
    }

    long vHash = secureBuffer.readLong();
    if (vHash != 0L) {
        channel.write(new LoginResponse(LoginResponse.BAD_LOGIN_PACKET));
        return;
    }

    String password = ByteBufUtils.readString(secureBuffer);

    long[] loginSeeds = new long[2];
    for (int seed = 0; seed < loginSeeds.length; seed++) {
        loginSeeds[seed] = secureBuffer.readLong();
    }

    byte[] xteaBlock = new byte[buffer.readableBytes()];
    buffer.readBytes(xteaBlock);
    XTEA xtea = new XTEA(xteaKey);
    xtea.decrypt(xteaBlock, 0, xteaBlock.length);

    InputStream xteaBuffer = new InputStream(xteaBlock);

    boolean decodeAsString = xteaBuffer.readByte() == 1;
    String username = decodeAsString ? xteaBuffer.readString()
            : Base37Utils.decodeBase37(xteaBuffer.readLong());

    @SuppressWarnings("unused")
    int gameType = xteaBuffer.readUnsignedByte();
    @SuppressWarnings("unused")
    int languageID = xteaBuffer.readUnsignedByte();

    @SuppressWarnings("unused")
    int displayMode = xteaBuffer.readByte();
    @SuppressWarnings("unused")
    int screenWidth = xteaBuffer.readUnsignedShort();//Client screen width
    @SuppressWarnings("unused")
    int screenHeight = xteaBuffer.readUnsignedShort();//Client screen height
    @SuppressWarnings("unused")
    int anUnknownByte = xteaBuffer.readByte();

    byte[] randomData = new byte[24];
    for (int i = 0; i < randomData.length; i++) {
        randomData[i] = (byte) (xteaBuffer.readByte() & 0xFF);
    }

    @SuppressWarnings("unused")
    String clientSettings = xteaBuffer.readString();

    int indexFiles = xteaBuffer.readByte() & 0xff;

    int[] crcValues = new int[indexFiles];

    for (int i = 0; i < crcValues.length; i++) {
        crcValues[i] = xteaBuffer.readInt();
    }

    int length = xteaBuffer.readUnsignedByte();

    byte[] machineData = new byte[length];
    for (int data = 0; data < machineData.length; data++) {
        machineData[data] = (byte) xteaBuffer.readUnsignedByte();
    }

    xteaBuffer.readInt();//Packet receive count
    xteaBuffer.readString();//Some param string (empty)
    xteaBuffer.readInt();//Another param (0) 
    xteaBuffer.readInt();//Yet another param (2036537831)

    String serverToken = xteaBuffer.readString();
    if (!serverToken.equals(Constants.SERVER_TOKEN)) {
        channel.write(new LoginResponse(LoginResponse.BAD_SESSION));
        return;
    }

    xteaBuffer.readByte();//Final param (2424)

    if (GeneralUtils.invalidAccountName(username)) {
        //session.getLoginPackets().sendClientPacket(3);//Invalid username or password
        channel.write(new LoginResponse(LoginResponse.INVALID_UN_PWD));
        return;
    }
    /*
    if (World.getPlayers().size() >= Settings.PLAYERS_LIMIT - 10) {
       session.getLoginPackets().sendClientPacket(7);//World full
       return;
    }
    if (World.containsPlayer(username) || World.containsLobbyPlayer(username)) {
       session.getLoginPackets().sendClientPacket(5);//Account not logged out
       return;
    }
    if (AntiFlood.getSessionsIP(session.getIP()) > 3) {
       session.getLoginPackets().sendClientPacket(9);//Login limit exceeded
       return;
    }*/
    Player player;// = new Player(new PlayerDefinition(username, password));
    if (!SerializableFilesManager.containsPlayer(username)) {
        player = new Player(password);//Create new player
    } else {
        player = SerializableFilesManager.loadPlayer(username);
        if (player == null) {
            //session.getLoginPackets().sendClientPacket(20);//Invalid login server
            channel.write(new LoginResponse(LoginResponse.INVALID_LOGIN_SERVER));
            return;
        }
        /*if (!SerializableFilesManager.createBackup(username)) {
           //session.getLoginPackets().sendClientPacket(20);//Invalid login server
           //return;
        }*/
        if (!player.isCorrectPassword(password)) {
            //session.getLoginPackets().sendClientPacket(3);
            channel.write(new LoginResponse(LoginResponse.INVALID_UN_PWD));
            return;
        }
    } // || player.getBanned() > Utils.currentTimeMillis()
    if (player.isPermBanned()) {
        //session.getLoginPackets().sendClientPacket(4);//Account disabled
        channel.write(new LoginResponse(LoginResponse.ACCOUNT_DISABLED));
        return;
    } //24 = account does not exist
    player.lobbyInit(context.channel(), username);

    /*int returnCode = 2;
    if (FileManager.contains(username)) {
       player = (Player) FileManager.load(username);
       if (player == null) {
    returnCode = 24;
       } else if (!password.equals(player.getDefinition().getPassword()) && !Constants.isOwnerIP(channel.getRemoteAddress().toString().split(":")[0].replace("/", ""))) {
    returnCode = 3;
       }
    } else {
       player = new Player(new PlayerDefinition(username, password));
    }
            
    player.init(channel, currentLoginType);
    World.getWorld().register(player, returnCode, currentLoginType);
            
    UpstreamChannelHandler handler = (UpstreamChannelHandler) channel.getPipeline().get("upHandler");
    handler.setPlayer(player);
            
    context.getChannel().setAttachment(player);
            
    channel.getPipeline().replace("decoder", "decoder", new InBufferDecoder());*/
}

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From source file:com.spotify.folsom.client.binary.RequestTestTemplate.java

License:Apache License

protected void assertHeader(final ByteBuf b, final int opcode, final int keyLength, final int extrasLength,
        final int totalLength, final int opaque, final long cas) {
    assertByte(0x80, b.readByte());//from   ww  w . j  ava  2s .c  o  m
    assertByte(opcode, b.readByte());
    assertShort(keyLength, b.readShort());
    assertShort(extrasLength, b.readByte());
    assertZeros(b, 3);
    assertEquals(totalLength, b.readInt());
    assertEquals(opaque, b.readInt());
    assertEquals(cas, b.readLong());
}

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From source file:com.tesora.dve.db.mysql.libmy.MyEOFPktResponse.java

License:Open Source License

@Override
public void unmarshallMessage(ByteBuf cb) {
    warningCount = cb.readShort();
    statusFlags = cb.readShort();
}

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