Example usage for io.netty.buffer ByteBuf readShort

Introduction

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

Prototype

public abstract short readShort();

Source Link

Document

Gets a 16-bit short integer at the current readerIndex and increases the readerIndex by 2 in this buffer.

Usage

From source file:com.zhuika.discard.DiscardClientHandler.java

License:Apache License

@Override
public void channelRead0(ChannelHandlerContext ctx, Object msg) throws Exception {
    ByteBuf in = (ByteBuf) msg;
    // /* w w w .  j a  v a2s.co m*/
    int length = in.readableBytes();
    System.out.println(":" + length);
    // ?? $$
    String head = in.readBytes(2).toString(Charset.defaultCharset());
    System.out.println(head);
    // 
    short l = in.readShort();
    System.out.println(l);
    // ?id ??
    String serialNumber = byteToArray(in.readBytes(7).array());
    System.out.println(serialNumber);
    // ???
    String agreement = byteToArray(in.readBytes(2).array());
    System.out.println(agreement);
    // ?
    String content = new String(Hex.decodeHex(byteToArray(in.readBytes(length - 17).array()).toCharArray()));//byteToArray(in.readBytes(l - 17).array());         
    System.out.println(content);
    //?
    //String flag=byteToArray(in.readBytes(1).array());
    //System.out.println(flag);
    // ? checksum
    String checksum = byteToArray(in.readBytes(2).array());
    System.out.println(checksum);
    // ?\r\n
    String end = byteToArray(in.readBytes(2).array());
    System.out.println(end);
    //Thread.sleep(70000);
    String message = "24240011" + serialNumber + "0002daa50d0a2424000d0a";
    byte[] b = HexString2Bytes(message);
    System.out.println(Hex.byteToArray(b));
    ctx.writeAndFlush(b);
}

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From source file:cubicchunks.network.PacketCubeBlockChange.java

License:MIT License

@SuppressWarnings("deprecation") // Forge thinks we are trying to register a block or something :P
@Override/*from   w ww.  jav a2 s  . c  om*/
public void fromBytes(ByteBuf in) {
    this.cubePos = new CubePos(in.readInt(), in.readInt(), in.readInt());
    short numBlocks = in.readShort();
    localAddresses = new short[numBlocks];
    blockStates = new IBlockState[numBlocks];

    for (int i = 0; i < numBlocks; i++) {
        localAddresses[i] = in.readShort();
        blockStates[i] = Block.BLOCK_STATE_IDS.getByValue(readVarInt(in, 4));
    }
    int numHmapChanges = in.readUnsignedByte();
    heightValues = new int[numHmapChanges];
    for (int i = 0; i < numHmapChanges; i++) {
        heightValues[i] = in.readInt();
    }
}

---

From source file:cyril.server.io.AuthHandler.java

License:Open Source License

@Override
public void inboundBufferUpdated(ChannelHandlerContext ctx, ByteBuf in) throws Exception {
    if (!timeState.compareAndSet(0, DATA_MASK)) {
        // Other thread is reading (?!) or timeout has been reached in the
        // past./*  w w w.  j  a v a  2 s .c om*/
        return;
    }

    boolean goOn = true;
    while (goOn && in.readable() && ((timeState.get() & KILL_MASK) == 0)) {
        // The killmask is set when something goes wrong
        // That why we test for it with every cycle

        PaketPosition s = paketState;
        switch (s) {
        case START:
            goOn = handleIncomingStart(ctx, in);
            break;

        case CREATE_PENDING:
            // Client tried to send something while *we* were sending the
            // login data.
            // Client is trying to troll / spam us.
            readerAborts(ctx);
            goOn = false;
            break;

        case MUST_LOGIN:
            if (in.readByte() == '!') {
                paketState = PaketPosition.LOGIN;
            } else {
                readerAborts(ctx);
                goOn = false;
            }
            break;

        case LOGIN:
            // Awaiting the first two bytes
            if (in.readableBytes() < 2) {
                goOn = false;
            } else {
                int usernameLength = in.readShort();
                goOn = auth.isValidUsernameLength(wrapped, usernameLength);
                if (goOn) {
                    username = new byte[usernameLength];
                    index = 0;
                }
            }
            break;

        case LOGIN_USER:
            goOn = handleIncomingUsername(ctx, in);
            break;

        case LOGIN_TOKEN_LENGTH:
            goOn = handleIncomingTokenLength(ctx, in);
            break;

        case LOGIN_TOKEN:
            goOn = handleIncomingToken(ctx, in);
            break;

        case DECLINED_WAIT:
            goOn = handleIncomingDeclined(ctx, in);
            break;

        case AUTHENTICATED:
        default:
            throw new InternalError("Dafuq: Illegal / Unknown" + " PaketPosition " + s);
        }
    }

    if (paketState == PaketPosition.AUTHENTICATED) {
        timeState.set(0);
        return;
    }

    int oldState;
    do {
        oldState = timeState.get();
    } while (!timeState.compareAndSet(oldState, oldState & ~DATA_MASK));
    if ((oldState | KILL_MASK) != 0) {
        // Don't care about anything when KILL_MASK is set.
        readerAborts(ctx, true);
        return;
    }
}

---

From source file:cyril.server.io.AuthHandler.java

License:Open Source License

/**
 * Handles the length field of the login request
 * //from w  ww .  j  a v  a  2s  .c  om
 * @param ctx
 *            The current context
 * @param in
 *            The buffer to be read from (not guaranteed to have both bytes)
 * @return whether further processing may happen
 */
private boolean handleIncomingTokenLength(ChannelHandlerContext ctx, ByteBuf in) {
    // Awaiting the first two bytes
    if (in.readableBytes() < 2) {
        return false;
    }

    int incomingLength = in.readShort();
    if (incomingLength != login.token.length) {
        readerAborts(ctx);
        return false;
    }

    paketState = PaketPosition.LOGIN_TOKEN;
    index = 0;
    return true;
}

---

From source file:de.jackwhite20.cascade.shared.protocol.packet.Packet.java

License:Open Source License

public String readString(ByteBuf byteBuf) throws UnsupportedEncodingException {

    byte[] bytes = new byte[byteBuf.readShort()];
    byteBuf.readBytes(bytes);/*from   w  w w.  j  ava2  s .c o  m*/

    return new String(bytes, "utf-8");
}

---

From source file:de.sanandrew.mods.turretmod.registry.electrolytegen.ElectrolyteProcess.java

License:Creative Commons License

public ElectrolyteProcess(ByteBuf buf) {
    this.processStack = ByteBufUtils.readItemStack(buf);
    this.progress = buf.readShort();
    this.maxProgress = buf.readShort();

    ElectrolyteRegistry.Fuel fuel = ElectrolyteRegistry.getFuel(this.processStack);
    this.effectivenes = fuel.effect;
    this.trashStack = fuel.trash.copy();
    this.treasureStack = fuel.treasure.copy();
}

---

From source file:divconq.ctp.f.BlockCommand.java

License:Open Source License

@Override
public boolean decode(ByteBuf in) {
    while (this.state != State.DONE) {
        switch (this.state) {
        case BLOCK_TYPE: {
            if (in.readableBytes() < 1)
                return false;

            this.blocktype = in.readUnsignedByte();

            this.eof = ((this.blocktype & CtpConstants.CTP_F_BLOCK_TYPE_EOF) != 0);
            this.skipHeaders = ((this.blocktype & CtpConstants.CTP_F_BLOCK_TYPE_HEADER) == 0);
            this.skipPayload = ((this.blocktype & CtpConstants.CTP_F_BLOCK_TYPE_CONTENT) == 0);

            // completely done, exit the loop and decode
            if (this.skipHeaders && this.skipPayload) {
                this.state = State.DONE;
                break;
            }//from  w  ww.j  a v a 2  s.c  om

            // to skip headers, go back to loop
            if (this.skipHeaders) {
                this.state = State.STREAM_OFFSET;
                break;
            }

            this.state = State.HEADER_ATTR;

            // deliberate fall through 
        }
        case HEADER_ATTR: {
            if (in.readableBytes() < 2)
                return false;

            this.currattr = in.readShort();

            // done with headers, go back to loop to skip down to payload
            if (this.currattr == CtpConstants.CTP_F_ATTR_END) {
                if (this.skipPayload)
                    this.state = State.DONE;
                else
                    this.state = State.STREAM_OFFSET;

                break;
            }

            this.state = State.HEADER_SIZE;

            // deliberate fall through 
        }
        case HEADER_SIZE: {
            if (in.readableBytes() < 2)
                return false;

            this.currasize = in.readShort();

            // an empty attribute is like a flag - present but no data
            // go on to next header
            if (this.currasize == 0) {
                this.headers.put(this.currattr, new byte[0]);
                this.currattr = 0;
                this.state = State.HEADER_ATTR;
                break;
            }

            this.state = State.HEADER_VALUE;

            // deliberate fall through 
        }
        case HEADER_VALUE: {
            if (in.readableBytes() < this.currasize)
                return false;

            byte[] val = new byte[this.currasize];

            in.readBytes(val);

            this.headers.put(this.currattr, val);

            this.currattr = 0;
            this.currasize = 0;

            this.state = State.HEADER_ATTR;

            break;
        }
        case STREAM_OFFSET: {
            if (in.readableBytes() < 8)
                return false;

            this.streamOffset = in.readLong();

            this.state = State.PAYLOAD_SIZE;

            // deliberate fall through 
        }
        case PAYLOAD_SIZE: {
            if (in.readableBytes() < 3)
                return false;

            this.paysize = in.readMedium();

            this.state = State.PAYLOAD;

            // deliberate fall through 
        }
        case PAYLOAD: {
            // return here, without any state reset, means we need more before we can decide what to do
            if (in.readableBytes() < this.paysize)
                return false;

            // add Data only if there are some bytes, otherwise skip buffer allocation
            if (this.paysize > 0) {
                ByteBuf bb = in.readSlice(this.paysize);
                bb.retain();
                this.data = bb;
            }

            this.state = State.DONE;

            // deliberate fall through 
        }
        case DONE: {
            break;
        }
        }
    }

    return true;
}

---

From source file:eu.jangos.realm.network.packet.client.auth.CMSG_AUTH_SESSION.java

License:Apache License

@Override
public void decode(ByteBuf buf) throws Exception {
    if (buf.readableBytes() < this.size) {
        throw new Exception();
    }// w w  w  . j a v a  2s.  co  m

    buf.readShort();
    this.build = buf.readInt();
    this.unknown = buf.readInt();

    StringBuilder b = new StringBuilder();

    byte c;

    while ((c = buf.readByte()) != 0) {
        b.append((char) c);
    }

    this.account = b.toString();
    this.seed = buf.readBytes(4).array();
    this.digest = buf.readBytes(20).array();

    int sizeAddons = buf.readInt();

    byte[] compressedAddons = buf.readBytes(buf.readableBytes()).array();

    Inflater decompressor = new Inflater();
    decompressor.setInput(compressedAddons);

    ByteArrayOutputStream bos = new ByteArrayOutputStream(compressedAddons.length);

    final byte[] buffer = new byte[1024];
    while (!decompressor.finished()) {
        try {
            final int count = decompressor.inflate(buffer);
            bos.write(buffer, 0, count);
        } catch (final DataFormatException e) {
        }
    }
    try {
        bos.close();
    } catch (final IOException e) {
    }

    final byte[] decompressedAddons = bos.toByteArray();

    if (sizeAddons != decompressedAddons.length) {
        System.out.println("Something went wrong");
        return;
    }

    ByteBuf addonBuffer = Unpooled.wrappedBuffer(decompressedAddons).order(ByteOrder.LITTLE_ENDIAN);

    this.listAddon = new ArrayList<>();

    while (addonBuffer.isReadable()) {
        String name;
        byte unk6;
        int crc, unk7;

        b = new StringBuilder();
        while ((c = addonBuffer.readByte()) != 0) {
            b.append((char) c);
        }

        name = b.toString();

        crc = addonBuffer.readInt();
        unk7 = addonBuffer.readInt();
        unk6 = addonBuffer.readByte();

        AddonInfo info = new AddonInfo(name, unk6, crc, unk7);
        this.listAddon.add(info);
    }

}

---

From source file:eu.matejkormuth.rpgdavid.starving.remote.netty.handlers.ByteBufToPacketHandler.java

License:Open Source License

@Override
protected void decode(ChannelHandlerContext ctx, ByteBuf in, List<Object> out) throws Exception {
    short packetId = in.readShort();
    Packet p = packetFactory.createPacket(packetId);
    p.readFrom(in);/*from  w  ww  .j  a  va2  s  .c  om*/
    out.add(p);
}

---

From source file:eu.matejkormuth.rpgdavid.starving.remote.netty.handlers.ShortHeaderFrameDecoder.java

License:Open Source License

@Override
protected void decode(final ChannelHandlerContext ctx, final ByteBuf buf, final List<Object> out)
        throws Exception {
    out.add(buf.readBytes(buf.readShort()));
}

---

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