Example usage for io.netty.buffer ByteBuf readUnsignedByte

List of usage examples for io.netty.buffer ByteBuf readUnsignedByte

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Introduction

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

Prototype

public abstract short readUnsignedByte();

Source Link

Document

Gets an unsigned byte at the current readerIndex and increases the readerIndex by 1 in this buffer.

Usage

From source file:com.rs3e.network.protocol.codec.js5.UpdateDecoder.java

License:Open Source License

@Override
public Object decode(ChannelHandlerContext ctx, ByteBuf buf) throws Exception {
    if (buf.readableBytes() < 6)
        return null;

    if (updateStage == UpdateStage.READ_VERSION) {
        updateStage = UpdateStage.READ_REQUEST;
        int length = buf.readUnsignedByte();
        if (buf.readableBytes() >= length) {
            int version = buf.readInt();
            int subVersion = buf.readInt();
            String key = ByteBufUtils.readString(buf);
            return new UpdateVersionMessage(version, subVersion, key);
        }// w w w.j  a v  a2  s  .co m
    } else {
        int opcode = buf.readUnsignedByte();
        if (opcode == 0 || opcode == 1) {
            int type = buf.readUnsignedByte();
            int file = buf.readInt();
            return new FileRequest(opcode == 1, type, file);
        } else if (opcode == 4) {
            int key = buf.readUnsignedByte();
            buf.readerIndex(buf.readerIndex() + 2);
            return new UpdateEncryptionMessage(key);
        } else {
            buf.readerIndex(buf.readerIndex() + 5);
            return null;
        }
    }
    return null;
}

From source file:com.rs3e.network.protocol.codec.js5.UpdateEncoder.java

License:Open Source License

@Override
public void encode(ChannelHandlerContext ctx, FileResponse response, ByteBuf buf) throws Exception {
    ByteBuf container = response.getContainer();
    int type = response.getType();
    int file = response.getFile();

    int compression = container.readUnsignedByte();
    int size = ((container.readByte() & 0xff) << 24) + ((container.readByte() & 0xff) << 16)
            + ((container.readByte() & 0xff) << 8) + (container.readByte() & 0xff);
    if (!response.isPriority()) {
        file |= 0x80000000;/*  w  w w .j av  a 2s .  c o  m*/
    }

    buf.writeByte(type);
    buf.writeInt(file);
    buf.writeByte(compression);
    buf.writeInt(size);

    int bytes = container.readableBytes();
    if (bytes > 502) {
        bytes = 502;
    }

    buf.writeBytes(container.readBytes(bytes));

    for (;;) {
        bytes = container.readableBytes();
        if (bytes == 0) {
            break;
        } else if (bytes > 507) {
            bytes = 507;
        }
        buf.writeByte(type);
        buf.writeInt(file);
        buf.writeBytes(container.readBytes(bytes));

    }
}

From source file:com.rs3e.network.protocol.codec.js5.XorEncoder.java

License:Open Source License

@Override
public void encode(ChannelHandlerContext ctx, ByteBuf in, ByteBuf out) {
    while (in.readable()) {
        out.writeByte(in.readUnsignedByte() ^ key);
    }/*from   w  w w. j  a va2  s. com*/
}

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

License:Open Source License

/**
 * Decodes the payload of login./* w w w . j a va  2s . co 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.");
    }

    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);
    }/* w  ww .ja  va2  s  . com*/

    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.  ja v a2  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.");
    }

    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 ww .j  a va  2s .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;//from ww  w . j  a va 2 s  .co  m
    }

    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());*/
}

From source file:com.rs3e.utility.ByteBufUtils.java

License:Open Source License

public static String readString(ByteBuf buffer) {
    buffer.markReaderIndex();//from  ww w .  ja v a 2 s  . c o m

    int len = 0;
    while (buffer.readUnsignedByte() != 0)
        len++;

    buffer.resetReaderIndex();

    byte[] bytes = new byte[len];
    buffer.readBytes(bytes);
    buffer.readerIndex(buffer.readerIndex() + 1);
    return new String(bytes, Charsets.ASCII_LATIN1_CHARSET);
}

From source file:com.seagate.kinetic.common.protocol.codec.KineticDecoder.java

License:Open Source License

@Override
protected void decode(ChannelHandlerContext ctx, ByteBuf in, List<Object> out) {

    in.markReaderIndex();/*from  www .ja va  2 s  . c om*/

    // Wait until the length prefix is available
    // (magic ('F') + proto-msg-size + value-size)
    if (in.readableBytes() < 9) {
        in.resetReaderIndex();
        return;
    }

    // 1. Read magic number.
    int magicNumber = in.readUnsignedByte();
    if (magicNumber != 'F') {
        in.resetReaderIndex();
        throw new CorruptedFrameException("Invalid magic number: " + magicNumber);
    }

    // 2. protobuf message size
    int protoMessageLength = in.readInt();

    // 3. attched value size
    int attachedValueLength = in.readInt();

    // wait until whole message is available
    if (in.readableBytes() < (protoMessageLength + attachedValueLength)) {
        in.resetReaderIndex();
        return;
    }

    // 4. read protobuf message
    byte[] decoded = new byte[protoMessageLength];
    in.readBytes(decoded);

    // kinetic message
    KineticMessage km = new KineticMessage();

    // construct protobuf message
    Message.Builder mbuilder = Message.newBuilder();

    try {
        mbuilder.mergeFrom(decoded);
    } catch (Exception e) {
        in.resetReaderIndex();

        logger.log(Level.WARNING, e.getMessage(), e);

        throw new RuntimeException(e);
    }

    // 5. read attched value if any
    if (attachedValueLength > 0) {
        // construct byte[]
        byte[] attachedValue = new byte[attachedValueLength];
        // read from buffer
        in.readBytes(attachedValue);
        // set to message
        // mbuilder.setValue(ByteString.copyFrom(attachedValue));
        km.setValue(attachedValue);
    }

    Message message = mbuilder.build();

    km.setMessage(message);

    // get command bytes
    ByteString commandBytes = message.getCommandBytes();

    // build command
    Command.Builder commandBuilder = Command.newBuilder();

    try {
        commandBuilder.mergeFrom(commandBytes);
        km.setCommand(commandBuilder.build());
    } catch (InvalidProtocolBufferException e) {
        logger.log(Level.WARNING, e.getMessage(), e);
    }

    // the whole message
    out.add(km);

    // print inbound message
    if (printMessage) {

        logger.info("Inbound protocol message: ");

        String printMsg = ProtocolMessageUtil.toString(km);

        logger.info(printMsg);
    }
}