Example usage for io.netty.buffer ByteBuf readableBytes

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

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Introduction

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

Prototype

public abstract int readableBytes();

Source Link

Document

Returns the number of readable bytes which is equal to (this.writerIndex - this.readerIndex) .

Usage

From source file:com.ibasco.agql.protocols.valve.source.query.logger.SourceLogListenHandler.java

License:Open Source License

@Override
protected void channelRead0(ChannelHandlerContext ctx, DatagramPacket msg) throws Exception {
    ByteBuf data = msg.content();
    if (data.readableBytes() > 6 && data.readIntLE() == -1) {
        byte[] raw = new byte[data.readableBytes() - 2];
        data.readBytes(raw);/*from  w w  w .jav a 2s  . c  om*/
        data.skipBytes(2);
        //Pass to the callback
        if (logEventCallback != null)
            logEventCallback.accept(new SourceLogEntry(new String(raw, Charsets.UTF_8), msg.sender()));
    }
}

From source file:com.ibasco.agql.protocols.valve.source.query.packets.response.SourceInfoResponsePacket.java

License:Open Source License

@Override
public SourceServer toObject() {
    ByteBuf data = getPayloadBuffer();

    SourceServer server = new SourceServer();

    //Start Decoding
    server.setNetworkVersion(data.readByte());
    server.setName(readString(data));//from w w w .  j a  v a2s  . co  m
    server.setMapName(readString(data));
    server.setGameDirectory(readString(data));
    server.setGameDescription(readString(data));
    server.setAppId(data.readShortLE());
    server.setNumOfPlayers(data.readByte());
    server.setMaxPlayers(data.readByte());
    server.setNumOfBots(data.readByte());
    server.setDedicated(data.readByte() == 1);
    server.setOperatingSystem((char) data.readByte());
    server.setPasswordProtected(data.readByte() == 1);
    server.setSecure(data.readByte() == 1);
    server.setGameVersion(readString(data));

    if (data.readableBytes() > 0) {
        byte extraDataFlag = data.readByte();

        if ((extraDataFlag & EDF_GAME_PORT) != 0) {
            data.readShortLE(); //discard, we already know which port based on the sender address
        }

        if ((extraDataFlag & EDF_SERVER_ID) != 0) {
            //this.info.put("serverId", Long.reverseBytes((this.contentData.getInt() << 32) | this.contentData.getInt()));
            server.setServerId(data.readLongLE());
        }

        if ((extraDataFlag & EDF_SOURCE_TV) != 0) {
            server.setTvPort(data.readShortLE());
            server.setTvName(readString(data));
        }

        if ((extraDataFlag & EDF_SERVER_TAGS) != 0) {
            server.setServerTags(readString(data));
        }

        if ((extraDataFlag & EDF_GAME_ID) != 0) {
            server.setGameId(data.readLongLE());
            //this.info.put("gameId", Long.reverseBytes((this.contentData.getInt() << 32) | this.contentData.getInt()));
        }
    }

    return server;
}

From source file:com.ibasco.agql.protocols.valve.source.query.SourcePacketBuilder.java

License:Open Source License

@Override
public <T extends SourceServerPacket> T construct(ByteBuf data) {
    //Mark Index/*  w w w . ja v a  2s  .  c o  m*/
    data.markReaderIndex();

    try {
        //Reset the index
        data.readerIndex(0);

        //Verify size
        if (data.readableBytes() < 5)
            throw new IllegalStateException(
                    "Cannot continue processing buffer with less than or equal to 4 bytes");

        //Read protocol header
        int protocolHeader = data.readIntLE();

        //Check if this is a split packet
        if (protocolHeader == 0xFFFFFFFE)
            throw new IllegalStateException("Cannot construct a response from a partial/split packet.");

        //Verify that we have a valid header
        if (protocolHeader != 0xFFFFFFFF)
            throw new IllegalStateException("Protocol header not supported.");

        //Read packet header
        byte packetHeader = data.readByte();

        //Read payload
        byte[] payload = new byte[data.readableBytes()];
        data.readBytes(payload);

        //Verify if packet header is valid
        SourceServerPacket packet = createResponsePacketFromHeader(packetHeader);

        //If packet is empty, means the supplied packet header is not supported
        if (packet == null)
            return null;

        packet.setProtocolHeader(ByteUtils.byteArrayFromInteger(protocolHeader));
        packet.setHeader(packetHeader);
        packet.setPayload(payload);

        return (T) packet;
    } finally {
        data.resetReaderIndex();
    }
}

From source file:com.ibasco.agql.protocols.valve.source.query.SourcePacketBuilder.java

License:Open Source License

/**
 * Convert a source packet instance to it's byte representation
 *
 * @param packet The {@link SourceServerPacket} to convert
 *
 * @return Returns the deconstructed packet in byte array form
 *///from   w  ww.  j av  a2  s  .co  m
@Override
public byte[] deconstruct(SourceServerPacket packet) {
    if (packet == null)
        throw new IllegalArgumentException("Invalid packet specified in the arguments.");

    byte[] payload = packet.getPayload();
    byte[] protocolHeader = packet.getProtocolHeader();
    byte[] packetHeader = packet.getPacketHeader();

    int payloadSize = payload != null ? payload.length : 0;
    int protocolHeaderSize = protocolHeader != null ? protocolHeader.length : 0;
    int packetHeaderSize = packetHeader != null ? packetHeader.length : 0;
    int packetSize = protocolHeaderSize + packetHeaderSize + payloadSize;

    //Allocate our buffer
    final ByteBuf buf = createBuffer(packetSize);
    byte[] data;

    try {
        //Include Protocol Header if available
        if (protocolHeaderSize > 0)
            buf.writeBytes(protocolHeader);

        //Include Packet Header
        if (packetHeaderSize > 0)
            buf.writeBytes(packetHeader);

        //Include Payload (if available)
        if (payloadSize > 0)
            buf.writeBytes(payload);

        //Store the buffer into a byte array
        data = new byte[buf.readableBytes()];
        if (data.length > 0) {
            buf.readBytes(data);
        }
    } finally {
        buf.release();
    }

    log.debug("Constructing '{}' with total of {} bytes of data", packet.getClass().getSimpleName(),
            data.length);

    //Return the backing array representation
    return data;
}

From source file:com.ibasco.agql.protocols.valve.source.query.SourceRconPacketBuilder.java

License:Open Source License

@SuppressWarnings("unchecked")
@Override//from   w w w  .j av a  2 s.  c om
public <T extends SourceRconPacket> T construct(ByteBuf data) {
    try {
        if (data.readableBytes() < 14) {
            log.warn("Packet is less than 10 bytes. Unsupported packet.");
            if (log.isDebugEnabled())
                log.debug("Unrecognized Packet: \n{}", ByteBufUtil.prettyHexDump(data));
            return null;
        }

        //Remember the reader index
        data.markReaderIndex();

        //Read from the listen
        data.readerIndex(0);
        int size = data.readIntLE();
        int id = data.readIntLE();
        int type = data.readIntLE();

        String body = data.readCharSequence(data.readableBytes() - 2, StandardCharsets.UTF_8).toString();

        SourceRconResponsePacket packet = getResponsePacket(type);

        if (packet != null) {
            //Ok, we have a valid response packet. Lets keep reading.
            packet.setId(id);
            packet.setSize(size);
            packet.setType(type);
            packet.setBody(body);
            return (T) packet;
        }
    } finally {
        //Reset the index
        data.resetReaderIndex();
    }
    return null;
}

From source file:com.ibasco.agql.protocols.valve.source.query.SourceRconPacketBuilder.java

License:Open Source License

@Override
public byte[] deconstruct(SourceRconPacket packet) {
    //1) size = int (4 bytes)
    //2) id = int (4 bytes)
    //3) type = int (4 bytes)
    //4) body = string (length + 1 null byte)
    //5) trailer = null byte

    int id = packet.getId();
    int type = packet.getType();
    final String body = StringUtils.defaultString(packet.getBody());
    int packetSize = 10 + body.length();
    final ByteBuf buf = createBuffer(packetSize);
    byte[] data;/* ww w  .j  av  a  2 s .  co  m*/
    try {
        buf.writeIntLE(packetSize);
        buf.writeIntLE(id);
        buf.writeIntLE(type);
        buf.writeBytes(body.getBytes());
        buf.writeByte(0);
        buf.writeByte(0);
        data = new byte[buf.readableBytes()];
        buf.readBytes(data);
    } finally {
        buf.release();
    }
    return data;
}

From source file:com.ibasco.agql.protocols.valve.steam.master.MasterServerPacketBuilder.java

License:Open Source License

@Override
public <T extends MasterServerPacket> T construct(ByteBuf data) {
    //Mark Index/* w w  w . j ava 2s  .  c o m*/
    data.markReaderIndex();
    try {
        //Reset the index
        data.readerIndex(0);
        //Verify size
        if (data.readableBytes() <= 6)
            throw new IllegalStateException(
                    "Cannot continue processing buffer with less than or equal to 6 bytes");
        //Read header
        byte[] header = new byte[6];
        data.readBytes(header);
        //Read payload
        byte[] payload = new byte[data.readableBytes()];
        data.readBytes(payload);
        //Verify if packet header is valid
        MasterServerResponsePacket packet = new MasterServerResponsePacket();
        packet.setHeader(header);
        packet.setPayload(payload);
        return (T) packet;
    } finally {
        data.resetReaderIndex();
    }
}

From source file:com.ibasco.agql.protocols.valve.steam.master.MasterServerPacketBuilder.java

License:Open Source License

@Override
public byte[] deconstruct(MasterServerPacket packet) {
    if (packet == null)
        throw new IllegalArgumentException("Invalid packet specified in the arguments.");

    byte[] payload = packet.getPayload();
    byte[] packetHeader = packet.getPacketHeader();

    int payloadSize = payload != null ? payload.length : 0;
    int packetHeaderSize = packetHeader != null ? packetHeader.length : 0;
    int packetSize = packetHeaderSize + payloadSize;

    //Allocate our buffer
    final ByteBuf buf = createBuffer(packetSize);
    byte[] data;/*from w ww  . java  2s  .  c o  m*/

    try {
        //Include Packet Header
        if (packetHeaderSize > 0)
            buf.writeBytes(packetHeader);
        //Include Payload (if available)
        if (payloadSize > 0)
            buf.writeBytes(payload);
        //Store the buffer into a byte array
        data = new byte[buf.readableBytes()];
        if (data.length > 0) {
            buf.readBytes(data);
        }
    } finally {
        buf.release();
    }

    log.debug("Constructing '{}' with total of {} bytes of data", packet.getClass().getSimpleName(),
            data.length);

    //Return the backing array representation
    return data;
}

From source file:com.ibasco.agql.protocols.valve.steam.master.packets.MasterServerRequestPacket.java

License:Open Source License

@Override
public byte[] getPayload() {
    String filterString = this.filter.toString();
    int payloadSize = (3 + filterString.length() + (this.startIp.length()));
    final ByteBuf payload = PooledByteBufAllocator.DEFAULT.buffer(payloadSize);
    try {//ww  w  .j a v a  2  s  .co m
        payload.writeByte(getRegion());
        payload.writeBytes(getStartIp().getBytes());
        payload.writeByte(0); //terminating byte
        payload.writeBytes(filterString.getBytes());
        byte[] payloadBytes = new byte[payload.readableBytes()];
        payload.readBytes(payloadBytes);
        return payloadBytes;
    } finally {
        payload.release();
    }
}

From source file:com.ibasco.agql.protocols.valve.steam.master.packets.MasterServerResponsePacket.java

License:Open Source License

@Override
public Vector<InetSocketAddress> toObject() {
    ByteBuf data = getPayloadBuffer();

    //Clear the list
    servers.clear();//ww w .j  a  v  a 2  s.c  o m

    int firstOctet, secondOctet, thirdOctet, fourthOctet, portNumber;

    //Process the content containing list of source ips
    do {
        //Clear string
        ip.setLength(0);

        firstOctet = data.readByte() & 0xFF;
        secondOctet = data.readByte() & 0xFF;
        thirdOctet = data.readByte() & 0xFF;
        fourthOctet = data.readByte() & 0xFF;
        portNumber = data.readShort() & 0xFFFF;

        //Build our ip string
        ip.append(firstOctet).append(".").append(secondOctet).append(".").append(thirdOctet).append(".")
                .append(fourthOctet);

        //Add to the list
        servers.add(new InetSocketAddress(ip.toString(), portNumber));

        //Append port number
        ip.append(":").append(portNumber);
    } while (data.readableBytes() > 0);

    return servers;
}