Example usage for io.netty.buffer ByteBuf readInt

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

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Introduction

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

Prototype

public abstract int readInt();

Source Link

Document

Gets a 32-bit integer at the current readerIndex and increases the readerIndex by 4 in this buffer.

Usage

From source file:com.quavo.osrs.network.protocol.codec.handshake.HandshakeDecoder.java

License:Open Source License

@Override
protected void decode(ChannelHandlerContext ctx, ByteBuf in, List<Object> out) throws Exception {
    if (!in.isReadable() || in.readableBytes() < 4) {
        return;/* ww w .j av  a2s.  co m*/
    }

    out.add(new HandshakeRequest(this, in.readInt()));// version
}

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 ww  .  j av a2s. c o m
    }

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

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  w w .j  ava  2  s . co  m*/
    }

    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));
}

From source file:com.quavo.osrs.network.protocol.codec.update.UpdateEncoder.java

License:Open Source License

@Override
protected void encode(ChannelHandlerContext ctx, UpdateResponse msg, ByteBuf out) throws Exception {
    int type = msg.getType();
    int id = msg.getId();
    ByteBuf container = msg.getContainer();

    int compression = container.readUnsignedByte();
    int length = container.readInt();

    out.writeByte(type);/*from  w w w.  jav a  2 s  .  c  om*/
    out.writeShort(id);
    out.writeByte(compression);
    out.writeInt(length);

    int bytes = container.readableBytes();
    if (bytes > 504) {
        bytes = 504;
    }
    out.writeBytes(container.readBytes(bytes));
    while ((bytes = container.readableBytes()) != 0) {
        if (bytes == 0) {
            break;
        } else if (bytes > 511) {
            bytes = 511;
        }
        out.writeByte(0xff);
        out.writeBytes(container.readBytes(bytes));
    }
}

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 .  ja v  a 2  s  .  c o 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.login.LoginDecoder.java

License:Open Source License

/**
 * Decodes the payload of login.//www. j  av a  2 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.");
    }

    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 decodeClientDetails(ByteBuf buffer) throws ProtocolException {
    if (buffer.readableBytes() < loginSize) {
        throw new ProtocolException("Invalid login size.");
    }/*ww  w. j  av a  2s . c  om*/

    int version = buffer.readInt();
    int subVersion = buffer.readInt();

    if (version != Constants.ServerRevision && subVersion != Constants.ServerSubRevision) {
        return new LoginResponse(LoginResponse.GAME_UPDATED);
        // throw new
        // ProtocolException("Invalid client version/sub-version.");
    }

    /*
     * if (currentLoginType.equals(LoginTypes.GAME)) { buffer.readByte(); }
     */

    byte[] payload = new byte[loginSize - 8];
    buffer.readBytes(payload);
    return new LoginPayload(currentLoginType, payload);
    // state = currentLoginType.equals(LoginTypes.LOBBY) ?
    // LoginState.LOBBY_PAYLOAD : LoginState.GAME_PAYLOAD;
    // return null;
}

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

License:Open Source License

/**
 * Decodes the payload of login.//www .java 2  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 decodeClientDetails(ByteBuf buffer) {
    if (buffer.readableBytes() < loginSize) {
        throw new ProtocolException("Invalid login size.");
    }// w  ww . j a  va2s. com

    int version = buffer.readInt();
    int subVersion = buffer.readInt();

    if (version != Constants.ServerRevision && subVersion != Constants.ServerSubRevision) {
        return new LoginResponse(LoginResponse.GAME_UPDATED);
        //throw new ProtocolException("Invalid client version/sub-version.");
    }

    /*if (currentLoginType.equals(LoginTypes.GAME)) {
       buffer.readByte();
    }*/

    byte[] payload = new byte[loginSize - 8];
    buffer.readBytes(payload);
    return new LoginPayload(currentLoginType, payload);
    //state = currentLoginType.equals(LoginTypes.LOBBY) ? LoginState.LOBBY_PAYLOAD : LoginState.GAME_PAYLOAD;
    //return null;
}

From source file:com.rs3e.network.protocol.worldlist.WorldListDecoder.java

License:Open Source License

@Override
public WorldHandshakeMessage decode(ChannelHandlerContext ctx, ByteBuf in) throws Exception {
    if (in.readableBytes() < 4)
        return null;

    return new WorldHandshakeMessage(in.readInt());
}