Example usage for io.netty.buffer ByteBuf readUnsignedByte

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

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.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));
    }
}