List of usage examples for io.netty.buffer ByteBuf readUnsignedByte
public abstract short readUnsignedByte();
From source file:com.mobius.software.mqtt.parser.MQParser.java
License:Open Source License
public MQMessage decodeUsingCache(ByteBuf buf) throws MalformedMessageException { byte fixedHeader = buf.readByte(); LengthDetails length = LengthDetails.decode(buf); MessageType type = MessageType.valueOf((fixedHeader >> 4) & 0xf); MQMessage header = cache.borrowMessage(type); try {/*from w w w .jav a 2 s . co m*/ switch (type) { case CONNECT: byte[] nameValue = new byte[buf.readUnsignedShort()]; buf.readBytes(nameValue, 0, nameValue.length); String name = new String(nameValue, "UTF-8"); if (!name.equals("MQTT")) throw new MalformedMessageException("CONNECT, protocol-name set to " + name); int protocolLevel = buf.readUnsignedByte(); byte contentFlags = buf.readByte(); boolean userNameFlag = ((contentFlags >> 7) & 1) == 1 ? true : false; boolean userPassFlag = ((contentFlags >> 6) & 1) == 1 ? true : false; boolean willRetain = ((contentFlags >> 5) & 1) == 1 ? true : false; QoS willQos = QoS.valueOf(((contentFlags & 0x1f) >> 3) & 3); if (willQos == null) throw new MalformedMessageException("CONNECT, will QoS set to " + willQos); boolean willFlag = (((contentFlags >> 2) & 1) == 1) ? true : false; if (willQos.getValue() > 0 && !willFlag) throw new MalformedMessageException( "CONNECT, will QoS set to " + willQos + ", willFlag not set"); if (willRetain && !willFlag) throw new MalformedMessageException("CONNECT, will retain set, willFlag not set"); boolean cleanSession = ((contentFlags >> 1) & 1) == 1 ? true : false; boolean reservedFlag = (contentFlags & 1) == 1 ? true : false; if (reservedFlag) throw new MalformedMessageException("CONNECT, reserved flag set to true"); int keepalive = buf.readUnsignedShort(); byte[] clientIdValue = new byte[buf.readUnsignedShort()]; buf.readBytes(clientIdValue, 0, clientIdValue.length); String clientID = new String(clientIdValue, "UTF-8"); if (!StringVerifier.verify(clientID)) throw new MalformedMessageException( "ClientID contains restricted characters: U+0000, U+D000-U+DFFF"); Text willTopic = null; byte[] willMessage = null; String username = null; String password = null; Will will = null; if (willFlag) { if (buf.readableBytes() < 2) throw new MalformedMessageException("Invalid encoding will/username/password"); byte[] willTopicValue = new byte[buf.readUnsignedShort()]; if (buf.readableBytes() < willTopicValue.length) throw new MalformedMessageException("Invalid encoding will/username/password"); buf.readBytes(willTopicValue, 0, willTopicValue.length); String willTopicName = new String(willTopicValue, "UTF-8"); if (!StringVerifier.verify(willTopicName)) throw new MalformedMessageException( "WillTopic contains one or more restricted characters: U+0000, U+D000-U+DFFF"); willTopic = new Text(willTopicName); if (buf.readableBytes() < 2) throw new MalformedMessageException("Invalid encoding will/username/password"); willMessage = new byte[buf.readUnsignedShort()]; if (buf.readableBytes() < willMessage.length) throw new MalformedMessageException("Invalid encoding will/username/password"); buf.readBytes(willMessage, 0, willMessage.length); if (willTopic.length() == 0) throw new MalformedMessageException("invalid will encoding"); will = new Will(new Topic(willTopic, willQos), willMessage, willRetain); if (!will.isValid()) throw new MalformedMessageException("invalid will encoding"); } if (userNameFlag) { if (buf.readableBytes() < 2) throw new MalformedMessageException("Invalid encoding will/username/password"); byte[] userNameValue = new byte[buf.readUnsignedShort()]; if (buf.readableBytes() < userNameValue.length) throw new MalformedMessageException("Invalid encoding will/username/password"); buf.readBytes(userNameValue, 0, userNameValue.length); username = new String(userNameValue, "UTF-8"); if (!StringVerifier.verify(username)) throw new MalformedMessageException( "Username contains one or more restricted characters: U+0000, U+D000-U+DFFF"); } if (userPassFlag) { if (buf.readableBytes() < 2) throw new MalformedMessageException("Invalid encoding will/username/password"); byte[] userPassValue = new byte[buf.readUnsignedShort()]; if (buf.readableBytes() < userPassValue.length) throw new MalformedMessageException("Invalid encoding will/username/password"); buf.readBytes(userPassValue, 0, userPassValue.length); password = new String(userPassValue, "UTF-8"); if (!StringVerifier.verify(password)) throw new MalformedMessageException( "Password contains one or more restricted characters: U+0000, U+D000-U+DFFF"); } if (buf.readableBytes() > 0) throw new MalformedMessageException("Invalid encoding will/username/password"); Connect connect = (Connect) header; connect.reInit(username, password, clientID, cleanSession, keepalive, will); connect.setProtocolLevel(protocolLevel); break; case CONNACK: byte sessionPresentValue = buf.readByte(); if (sessionPresentValue != 0 && sessionPresentValue != 1) throw new MalformedMessageException( String.format("CONNACK, session-present set to %d", sessionPresentValue & 0xff)); boolean isPresent = sessionPresentValue == 1 ? true : false; short connackByte = buf.readUnsignedByte(); ConnackCode connackCode = ConnackCode.valueOf(connackByte); if (connackCode == null) throw new MalformedMessageException("Invalid connack code: " + connackByte); Connack connack = (Connack) header; connack.reInit(isPresent, connackCode); break; case PUBLISH: fixedHeader &= 0xf; boolean dup = ((fixedHeader >> 3) & 1) == 1 ? true : false; QoS qos = QoS.valueOf((fixedHeader & 0x07) >> 1); if (qos == null) throw new MalformedMessageException("invalid QoS value"); if (dup && qos == QoS.AT_MOST_ONCE) throw new MalformedMessageException("PUBLISH, QoS-0 dup flag present"); boolean retain = ((fixedHeader & 1) == 1) ? true : false; byte[] topicNameValue = new byte[buf.readUnsignedShort()]; buf.readBytes(topicNameValue, 0, topicNameValue.length); String topicName = new String(topicNameValue, "UTF-8"); if (!StringVerifier.verify(topicName)) throw new MalformedMessageException( "Publish-topic contains one or more restricted characters: U+0000, U+D000-U+DFFF"); Integer packetID = null; if (qos != QoS.AT_MOST_ONCE) { packetID = buf.readUnsignedShort(); if (packetID < 0 || packetID > 65535) throw new MalformedMessageException("Invalid PUBLISH packetID encoding"); } ByteBuf data = Unpooled.buffer(buf.readableBytes()); data.writeBytes(buf); Publish publish = (Publish) header; publish.reInit(packetID, new Topic(new Text(topicName), qos), data, retain, dup); break; case PUBACK: case PUBREC: case PUBREL: case PUBCOMP: case UNSUBACK: CountableMessage countable = (CountableMessage) header; countable.reInit(buf.readUnsignedShort()); break; case SUBSCRIBE: Integer subID = buf.readUnsignedShort(); List<Topic> subscriptions = new ArrayList<>(); while (buf.isReadable()) { byte[] value = new byte[buf.readUnsignedShort()]; buf.readBytes(value, 0, value.length); QoS requestedQos = QoS.valueOf(buf.readByte()); if (requestedQos == null) throw new MalformedMessageException( "Subscribe qos must be in range from 0 to 2: " + requestedQos); String topic = new String(value, "UTF-8"); if (!StringVerifier.verify(topic)) throw new MalformedMessageException( "Subscribe topic contains one or more restricted characters: U+0000, U+D000-U+DFFF"); Topic subscription = new Topic(new Text(topic), requestedQos); subscriptions.add(subscription); } if (subscriptions.isEmpty()) throw new MalformedMessageException("Subscribe with 0 topics"); Subscribe subscribe = (Subscribe) header; subscribe.reInit(subID, subscriptions.toArray(new Topic[subscriptions.size()])); break; case SUBACK: Integer subackID = buf.readUnsignedShort(); List<SubackCode> subackCodes = new ArrayList<>(); while (buf.isReadable()) { short subackByte = buf.readUnsignedByte(); SubackCode subackCode = SubackCode.valueOf(subackByte); if (subackCode == null) throw new MalformedMessageException("Invalid suback code: " + subackByte); subackCodes.add(subackCode); } if (subackCodes.isEmpty()) throw new MalformedMessageException("Suback with 0 return-codes"); Suback suback = (Suback) header; suback.reInit(subackID, subackCodes); break; case UNSUBSCRIBE: Integer unsubID = buf.readUnsignedShort(); List<Text> unsubscribeTopics = new ArrayList<>(); while (buf.isReadable()) { byte[] value = new byte[buf.readUnsignedShort()]; buf.readBytes(value, 0, value.length); String topic = new String(value, "UTF-8"); if (!StringVerifier.verify(topic)) throw new MalformedMessageException( "Unsubscribe topic contains one or more restricted characters: U+0000, U+D000-U+DFFF"); unsubscribeTopics.add(new Text(topic)); } if (unsubscribeTopics.isEmpty()) throw new MalformedMessageException("Unsubscribe with 0 topics"); Unsubscribe unsubscribe = (Unsubscribe) header; unsubscribe.reInit(unsubID, unsubscribeTopics.toArray(new Text[unsubscribeTopics.size()])); break; case PINGREQ: case PINGRESP: case DISCONNECT: break; default: throw new MalformedMessageException("Invalid header type: " + type); } if (buf.isReadable()) throw new MalformedMessageException("unexpected bytes in content"); if (length.getLength() != header.getLength()) throw new MalformedMessageException(String.format("Invalid length. Encoded: %d, actual: %d", length.getLength(), header.getLength())); return header; } catch (UnsupportedEncodingException e) { throw new MalformedMessageException("unsupported string encoding:" + e.getMessage()); } }
From source file:com.mobius.software.mqtt.parser.MQParser.java
License:Open Source License
public static MQMessage decode(ByteBuf buf) throws MalformedMessageException { MQMessage header = null;/*from w w w. j a v a 2 s .c o m*/ byte fixedHeader = buf.readByte(); LengthDetails length = LengthDetails.decode(buf); MessageType type = MessageType.valueOf((fixedHeader >> 4) & 0xf); try { switch (type) { case CONNECT: byte[] nameValue = new byte[buf.readUnsignedShort()]; buf.readBytes(nameValue, 0, nameValue.length); String name = new String(nameValue, "UTF-8"); if (!name.equals("MQTT")) throw new MalformedMessageException("CONNECT, protocol-name set to " + name); int protocolLevel = buf.readUnsignedByte(); byte contentFlags = buf.readByte(); boolean userNameFlag = ((contentFlags >> 7) & 1) == 1 ? true : false; boolean userPassFlag = ((contentFlags >> 6) & 1) == 1 ? true : false; boolean willRetain = ((contentFlags >> 5) & 1) == 1 ? true : false; QoS willQos = QoS.valueOf(((contentFlags & 0x1f) >> 3) & 3); if (willQos == null) throw new MalformedMessageException("CONNECT, will QoS set to " + willQos); boolean willFlag = (((contentFlags >> 2) & 1) == 1) ? true : false; if (willQos.getValue() > 0 && !willFlag) throw new MalformedMessageException( "CONNECT, will QoS set to " + willQos + ", willFlag not set"); if (willRetain && !willFlag) throw new MalformedMessageException("CONNECT, will retain set, willFlag not set"); boolean cleanSession = ((contentFlags >> 1) & 1) == 1 ? true : false; boolean reservedFlag = (contentFlags & 1) == 1 ? true : false; if (reservedFlag) throw new MalformedMessageException("CONNECT, reserved flag set to true"); int keepalive = buf.readUnsignedShort(); byte[] clientIdValue = new byte[buf.readUnsignedShort()]; buf.readBytes(clientIdValue, 0, clientIdValue.length); String clientID = new String(clientIdValue, "UTF-8"); if (!StringVerifier.verify(clientID)) throw new MalformedMessageException( "ClientID contains restricted characters: U+0000, U+D000-U+DFFF"); Text willTopic = null; byte[] willMessage = null; String username = null; String password = null; Will will = null; if (willFlag) { if (buf.readableBytes() < 2) throw new MalformedMessageException("Invalid encoding will/username/password"); byte[] willTopicValue = new byte[buf.readUnsignedShort()]; if (buf.readableBytes() < willTopicValue.length) throw new MalformedMessageException("Invalid encoding will/username/password"); buf.readBytes(willTopicValue, 0, willTopicValue.length); String willTopicName = new String(willTopicValue, "UTF-8"); if (!StringVerifier.verify(willTopicName)) throw new MalformedMessageException( "WillTopic contains one or more restricted characters: U+0000, U+D000-U+DFFF"); willTopic = new Text(willTopicName); if (buf.readableBytes() < 2) throw new MalformedMessageException("Invalid encoding will/username/password"); willMessage = new byte[buf.readUnsignedShort()]; if (buf.readableBytes() < willMessage.length) throw new MalformedMessageException("Invalid encoding will/username/password"); buf.readBytes(willMessage, 0, willMessage.length); if (willTopic.length() == 0) throw new MalformedMessageException("invalid will encoding"); will = new Will(new Topic(willTopic, willQos), willMessage, willRetain); if (!will.isValid()) throw new MalformedMessageException("invalid will encoding"); } if (userNameFlag) { if (buf.readableBytes() < 2) throw new MalformedMessageException("Invalid encoding will/username/password"); byte[] userNameValue = new byte[buf.readUnsignedShort()]; if (buf.readableBytes() < userNameValue.length) throw new MalformedMessageException("Invalid encoding will/username/password"); buf.readBytes(userNameValue, 0, userNameValue.length); username = new String(userNameValue, "UTF-8"); if (!StringVerifier.verify(username)) throw new MalformedMessageException( "Username contains one or more restricted characters: U+0000, U+D000-U+DFFF"); } if (userPassFlag) { if (buf.readableBytes() < 2) throw new MalformedMessageException("Invalid encoding will/username/password"); byte[] userPassValue = new byte[buf.readUnsignedShort()]; if (buf.readableBytes() < userPassValue.length) throw new MalformedMessageException("Invalid encoding will/username/password"); buf.readBytes(userPassValue, 0, userPassValue.length); password = new String(userPassValue, "UTF-8"); if (!StringVerifier.verify(password)) throw new MalformedMessageException( "Password contains one or more restricted characters: U+0000, U+D000-U+DFFF"); } if (buf.readableBytes() > 0) throw new MalformedMessageException("Invalid encoding will/username/password"); Connect connect = new Connect(username, password, clientID, cleanSession, keepalive, will); if (protocolLevel != 4) connect.setProtocolLevel(protocolLevel); header = connect; break; case CONNACK: byte sessionPresentValue = buf.readByte(); if (sessionPresentValue != 0 && sessionPresentValue != 1) throw new MalformedMessageException( String.format("CONNACK, session-present set to %d", sessionPresentValue & 0xff)); boolean isPresent = sessionPresentValue == 1 ? true : false; short connackByte = buf.readUnsignedByte(); ConnackCode connackCode = ConnackCode.valueOf(connackByte); if (connackCode == null) throw new MalformedMessageException("Invalid connack code: " + connackByte); header = new Connack(isPresent, connackCode); break; case PUBLISH: fixedHeader &= 0xf; boolean dup = ((fixedHeader >> 3) & 1) == 1 ? true : false; QoS qos = QoS.valueOf((fixedHeader & 0x07) >> 1); if (qos == null) throw new MalformedMessageException("invalid QoS value"); if (dup && qos == QoS.AT_MOST_ONCE) throw new MalformedMessageException("PUBLISH, QoS-0 dup flag present"); boolean retain = ((fixedHeader & 1) == 1) ? true : false; byte[] topicNameValue = new byte[buf.readUnsignedShort()]; buf.readBytes(topicNameValue, 0, topicNameValue.length); String topicName = new String(topicNameValue, "UTF-8"); if (!StringVerifier.verify(topicName)) throw new MalformedMessageException( "Publish-topic contains one or more restricted characters: U+0000, U+D000-U+DFFF"); Integer packetID = null; if (qos != QoS.AT_MOST_ONCE) { packetID = buf.readUnsignedShort(); if (packetID < 0 || packetID > 65535) throw new MalformedMessageException("Invalid PUBLISH packetID encoding"); } ByteBuf data = Unpooled.buffer(buf.readableBytes()); data.writeBytes(buf); header = new Publish(packetID, new Topic(new Text(topicName), qos), data, retain, dup); break; case PUBACK: header = new Puback(buf.readUnsignedShort()); break; case PUBREC: header = new Pubrec(buf.readUnsignedShort()); break; case PUBREL: header = new Pubrel(buf.readUnsignedShort()); break; case PUBCOMP: header = new Pubcomp(buf.readUnsignedShort()); break; case SUBSCRIBE: Integer subID = buf.readUnsignedShort(); List<Topic> subscriptions = new ArrayList<>(); while (buf.isReadable()) { byte[] value = new byte[buf.readUnsignedShort()]; buf.readBytes(value, 0, value.length); QoS requestedQos = QoS.valueOf(buf.readByte()); if (requestedQos == null) throw new MalformedMessageException( "Subscribe qos must be in range from 0 to 2: " + requestedQos); String topic = new String(value, "UTF-8"); if (!StringVerifier.verify(topic)) throw new MalformedMessageException( "Subscribe topic contains one or more restricted characters: U+0000, U+D000-U+DFFF"); Topic subscription = new Topic(new Text(topic), requestedQos); subscriptions.add(subscription); } if (subscriptions.isEmpty()) throw new MalformedMessageException("Subscribe with 0 topics"); header = new Subscribe(subID, subscriptions.toArray(new Topic[subscriptions.size()])); break; case SUBACK: Integer subackID = buf.readUnsignedShort(); List<SubackCode> subackCodes = new ArrayList<>(); while (buf.isReadable()) { short subackByte = buf.readUnsignedByte(); SubackCode subackCode = SubackCode.valueOf(subackByte); if (subackCode == null) throw new MalformedMessageException("Invalid suback code: " + subackByte); subackCodes.add(subackCode); } if (subackCodes.isEmpty()) throw new MalformedMessageException("Suback with 0 return-codes"); header = new Suback(subackID, subackCodes); break; case UNSUBSCRIBE: Integer unsubID = buf.readUnsignedShort(); List<Text> unsubscribeTopics = new ArrayList<>(); while (buf.isReadable()) { byte[] value = new byte[buf.readUnsignedShort()]; buf.readBytes(value, 0, value.length); String topic = new String(value, "UTF-8"); if (!StringVerifier.verify(topic)) throw new MalformedMessageException( "Unsubscribe topic contains one or more restricted characters: U+0000, U+D000-U+DFFF"); unsubscribeTopics.add(new Text(topic)); } if (unsubscribeTopics.isEmpty()) throw new MalformedMessageException("Unsubscribe with 0 topics"); header = new Unsubscribe(unsubID, unsubscribeTopics.toArray(new Text[unsubscribeTopics.size()])); break; case UNSUBACK: header = new Unsuback(buf.readUnsignedShort()); break; case PINGREQ: header = PINGREQ; break; case PINGRESP: header = PINGRESP; break; case DISCONNECT: header = DISCONNECT; break; default: throw new MalformedMessageException("Invalid header type: " + type); } if (buf.isReadable()) throw new MalformedMessageException("unexpected bytes in content"); if (length.getLength() != header.getLength()) throw new MalformedMessageException(String.format("Invalid length. Encoded: %d, actual: %d", length.getLength(), header.getLength())); return header; } catch (UnsupportedEncodingException e) { throw new MalformedMessageException("unsupported string encoding:" + e.getMessage()); } }
From source file:com.netty.grpc.proxy.demo.handler.GrpcProxyBackendHandler.java
License:Apache License
@Override public void channelRead(final ChannelHandlerContext ctx, Object msg) { ByteBuf buf = (ByteBuf) msg; System.out.println("channelRead:" + ByteBufUtil.hexDump((buf))); while (buf.readableBytes() > 0) { int payload = buf.readUnsignedMedium(); int frameType = buf.readByte(); Http2Flags flags = new Http2Flags(buf.readUnsignedByte()); int streamId = readUnsignedInt(buf); ByteBuf payloadBuf = buf.readBytes(payload); ByteBuf copy = ctx.alloc().buffer(); System.out.println("frame_type:" + frameType + "," + ByteBufUtil.hexDump((payloadBuf))); switch (frameType) { case Http2FrameTypes.SETTINGS: handleSettingFrame(ctx, flags); break; case Http2FrameTypes.WINDOW_UPDATE: handleWindowsUpdateFrame(ctx); break; case Http2FrameTypes.HEADERS: copy.writeMedium(payload);//from w w w . j av a2s . c o m copy.writeByte(frameType); copy.writeByte(flags.value()); copy.writeInt(streamId); copy.writeBytes(payloadBuf); forward(ctx, copy); break; case Http2FrameTypes.DATA: copy.writeMedium(payload); copy.writeByte(frameType); copy.writeByte(flags.value()); copy.writeInt(streamId); copy.writeBytes(payloadBuf); forward(ctx, copy); break; default: break; } } }
From source file:com.netty.grpc.proxy.demo.handler.GrpcProxyFrontendHandler.java
License:Apache License
private void readFrame(final ChannelHandlerContext ctx, ByteBuf buf) { if (first) {/*from w w w. j av a 2s .c o m*/ try { readClientPrefaceString(buf); } catch (Http2Exception e) { e.printStackTrace(); } first = false; } while (buf.readableBytes() > 0) { int payload = buf.readUnsignedMedium(); int frameType = buf.readByte(); Http2Flags flags = new Http2Flags(buf.readUnsignedByte()); int streamId = readUnsignedInt(buf); ByteBuf payloadBuf = buf.readBytes(payload); ByteBuf copy = ctx.alloc().buffer(); switch (frameType) { case Http2FrameTypes.SETTINGS: handleSettingFrame(ctx, flags); break; case Http2FrameTypes.WINDOW_UPDATE: handleWindowsUpdateFrame(ctx); break; case Http2FrameTypes.HEADERS: copy.writeMedium(payload); copy.writeByte(frameType); copy.writeByte(flags.value()); copy.writeInt(streamId); copy.writeBytes(payloadBuf); handleHeaderFrame(ctx, copy, streamId); break; case Http2FrameTypes.DATA: copy.writeMedium(payload); copy.writeByte(frameType); copy.writeByte(flags.value()); copy.writeInt(streamId); copy.writeBytes(payloadBuf); handleDataFrame(ctx, copy, streamId); break; default: break; } } }
From source file:com.ns.netty.gcd.server.BigIntegerDecoder.java
License:Apache License
@Override protected void decode(ChannelHandlerContext ctx, ByteBuf in, List<Object> out) { System.out.println("Decoder received event"); // Wait until the length prefix is available. if (in.readableBytes() < 5) { return;/* w ww .j a va 2 s .co m*/ } in.markReaderIndex(); // Check the magic number. int magicNumber = in.readUnsignedByte(); if (magicNumber != 'F') { in.resetReaderIndex(); throw new CorruptedFrameException("Invalid magic number: " + magicNumber); } // Wait until the whole data is available. int dataLength = in.readInt(); if (in.readableBytes() < dataLength) { in.resetReaderIndex(); return; } // Convert the received data into a new BigInteger. byte[] decoded = new byte[dataLength]; in.readBytes(decoded); out.add(new BigInteger(decoded)); }
From source file:com.ogarproject.ogar.server.net.PacketDecoder.java
License:Open Source License
@Override protected void decode(ChannelHandlerContext ctx, WebSocketFrame frame, List<Object> out) throws Exception { ByteBuf buf = frame.content().order(ByteOrder.LITTLE_ENDIAN); if (buf.capacity() < 1) { // Discard empty messages return;/*from w w w.ja v a 2s .co m*/ } buf.resetReaderIndex(); int packetId = buf.readUnsignedByte(); Packet packet = PacketRegistry.SERVERBOUND.constructPacket(packetId); if (packet == null) { throw new UnknownPacketException("Unknown packet ID: " + packetId); } OgarServer.log.finest("Received packet ID " + packetId + " (" + packet.getClass().getSimpleName() + ") from " + ctx.channel().remoteAddress()); packet.readData(buf); out.add(packet); }
From source file:com.quavo.osrs.network.protocol.codec.connection.ConnectionDecoder.java
License:Open Source License
@Override protected void decode(ChannelHandlerContext ctx, ByteBuf in, List<Object> out) throws Exception { if (!in.isReadable()) { return;//w ww .ja va2 s .co m } ConnectionType.getType(in.readUnsignedByte()).ifPresent(type -> out.add(new ConnectionRequest(this, type)));// id }
From source file:com.quavo.osrs.network.protocol.codec.game.GamePacketDecoder.java
License:Open Source License
@Override protected void decode(ChannelHandlerContext ctx, ByteBuf in, List<Object> out) throws Exception { if (!in.isReadable() || !player.getChannel().isRegistered()) { return;//w w w. j a va 2s .co m } int opcode = in.readUnsignedByte(); Optional<PacketDecoderIdentifier> data = PacketDecoderIdentifier.getPacket(opcode); if (data.isPresent()) { PacketDecoderIdentifier packet = data.get(); int size = packet.getSize(); if (packet.getType() == PacketType.VARIABLE_BYTE) { if (in.readableBytes() < 1) { return; } size = in.readUnsignedByte(); } else if (packet.getType() == PacketType.VARIABLE_SHORT) { if (in.readableBytes() < 2) { return; } size = in.readUnsignedShort(); } if (in.readableBytes() >= size) { if (size < 0) { return; } byte[] bytes = new byte[size]; in.readBytes(bytes, 0, size); out.add(new GamePacketRequest(this, player, packet.getId(), new GamePacketReader(Unpooled.wrappedBuffer(bytes)))); } } else { System.out.println("No data present for incoming packet: " + opcode + "."); in.readBytes(new byte[in.readableBytes()]); } }
From source file:com.quavo.osrs.network.protocol.codec.update.UpdateDecoder.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;//w ww . j a v a2 s.co m } Optional<UpdateType> request = UpdateType.getType(in.readUnsignedByte()); if (request.isPresent()) { UpdateType updateType = request.get(); switch (updateType) { case LOW_PRIORITY_UPDATE: case HIGH_PRIORITY_UPDATE: int uid = in.readUnsignedMedium(); int type = (uid >> 16); int id = (uid & 0xffff); out.add(new UpdateRequest(this, type, id, updateType == UpdateType.HIGH_PRIORITY_UPDATE)); break; case XOR_ENCRYPTION_UPDATE: int key = in.readUnsignedByte(); in.readUnsignedShort(); out.add(new XOREncryptionRequest(this, key)); break; } } else { in.readUnsignedMedium(); } }
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);/* w w w .ja v a 2 s . com*/ 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)); } }