Exemplo n.º 1
0
  @Override
  protected void encode(ChannelHandlerContext chc, SubscribeMessage message, ByteBuf out) {
    if (message.subscriptions().isEmpty()) {
      throw new IllegalArgumentException("Found a subscribe message with empty topics");
    }

    if (message.getQos() != AbstractMessage.QOSType.LEAST_ONE) {
      throw new IllegalArgumentException(
          "Expected a message with QOS 1, found " + message.getQos());
    }

    ByteBuf variableHeaderBuff = chc.alloc().buffer(4);
    ByteBuf buff = null;
    try {
      variableHeaderBuff.writeShort(message.getMessageID());
      for (SubscribeMessage.Couple c : message.subscriptions()) {
        variableHeaderBuff.writeBytes(Utils.encodeString(c.topicFilter));
        variableHeaderBuff.writeByte(c.qos);
      }

      int variableHeaderSize = variableHeaderBuff.readableBytes();
      byte flags = Utils.encodeFlags(message);
      buff = chc.alloc().buffer(2 + variableHeaderSize);

      buff.writeByte(AbstractMessage.SUBSCRIBE << 4 | flags);
      buff.writeBytes(Utils.encodeRemainingLength(variableHeaderSize));
      buff.writeBytes(variableHeaderBuff);

      out.writeBytes(buff);
    } finally {
      variableHeaderBuff.release();
      buff.release();
    }
  }
  void responseReceived(int id, @Nullable ByteBuf buffer) {
    Channel channel = requests.remove(id);
    if (channel == null || !channel.isActive()) {
      if (buffer != null) {
        buffer.release();
      }
      return;
    }

    if (buffer == null) {
      Responses.sendStatus(HttpResponseStatus.BAD_GATEWAY, channel);
      return;
    }

    HttpResponse httpResponse =
        new DefaultFullHttpResponse(HttpVersion.HTTP_1_1, HttpResponseStatus.OK, buffer);
    try {
      parseHeaders(httpResponse, buffer);
      Responses.addServer(httpResponse);
      if (!HttpHeaderUtil.isContentLengthSet(httpResponse)) {
        HttpHeaderUtil.setContentLength(httpResponse, buffer.readableBytes());
      }
    } catch (Throwable e) {
      buffer.release();
      try {
        LOG.error(e);
      } finally {
        Responses.sendStatus(HttpResponseStatus.INTERNAL_SERVER_ERROR, channel);
      }
      return;
    }
    channel.writeAndFlush(httpResponse);
  }
Exemplo n.º 3
0
  @Test
  public void testLargeFileRegionChunked() throws Exception {
    EmbeddedChannel channel = new EmbeddedChannel(new HttpResponseEncoder());
    HttpResponse response = new DefaultHttpResponse(HttpVersion.HTTP_1_1, HttpResponseStatus.OK);
    response.headers().set(HttpHeaders.Names.TRANSFER_ENCODING, HttpHeaders.Values.CHUNKED);
    assertTrue(channel.writeOutbound(response));

    ByteBuf buffer = channel.readOutbound();

    assertEquals(
        "HTTP/1.1 200 OK\r\nTransfer-Encoding: chunked\r\n\r\n",
        buffer.toString(CharsetUtil.US_ASCII));
    buffer.release();
    assertTrue(channel.writeOutbound(FILE_REGION));
    buffer = channel.readOutbound();
    assertEquals("80000000\r\n", buffer.toString(CharsetUtil.US_ASCII));
    buffer.release();

    FileRegion region = channel.readOutbound();
    assertSame(FILE_REGION, region);
    region.release();
    buffer = channel.readOutbound();
    assertEquals("\r\n", buffer.toString(CharsetUtil.US_ASCII));
    buffer.release();

    assertTrue(channel.writeOutbound(LastHttpContent.EMPTY_LAST_CONTENT));
    buffer = channel.readOutbound();
    assertEquals("0\r\n\r\n", buffer.toString(CharsetUtil.US_ASCII));
    buffer.release();

    assertFalse(channel.finish());
  }
Exemplo n.º 4
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  @Test
  public void testRemoveItselfWithReplayError() {
    EmbeddedChannel channel =
        new EmbeddedChannel(
            new ReplayingDecoder() {
              private boolean removed;

              @Override
              protected void decode(ChannelHandlerContext ctx, ByteBuf in, List<Object> out)
                  throws Exception {
                assertFalse(removed);
                ctx.pipeline().remove(this);

                in.readBytes(1000);

                removed = true;
              }
            });

    ByteBuf buf = Unpooled.wrappedBuffer(new byte[] {'a', 'b', 'c'});
    channel.writeInbound(buf.copy());
    ByteBuf b = channel.readInbound();

    assertEquals("Expect to have still all bytes in the buffer", b, buf);
    b.release();
    buf.release();
  }
Exemplo n.º 5
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  @Test
  public void testRemoveItselfWriteBuffer() {
    final ByteBuf buf = Unpooled.buffer().writeBytes(new byte[] {'a', 'b', 'c'});
    EmbeddedChannel channel =
        new EmbeddedChannel(
            new ReplayingDecoder() {
              private boolean removed;

              @Override
              protected void decode(ChannelHandlerContext ctx, ByteBuf in, List<Object> out)
                  throws Exception {
                assertFalse(removed);
                in.readByte();
                ctx.pipeline().remove(this);

                // This should not let it keep call decode
                buf.writeByte('d');
                removed = true;
              }
            });

    channel.writeInbound(buf.copy());
    ByteBuf b = channel.readInbound();
    assertEquals(b, Unpooled.wrappedBuffer(new byte[] {'b', 'c'}));
    b.release();
    buf.release();
  }
Exemplo n.º 6
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    /**
     * Reads the content of the entry into a new buffer. Use {@link #readContent(ByteBufAllocator,
     * InputStream, int)} when the length of the stream is known.
     */
    protected ByteBuf readContent(ByteBufAllocator alloc, InputStream in) throws IOException {
      ByteBuf buf = null;
      boolean success = false;
      try {
        buf = alloc.directBuffer();
        for (; ; ) {
          if (buf.writeBytes(in, 8192) < 0) {
            break;
          }
        }

        success = true;

        if (buf.isReadable()) {
          return buf;
        } else {
          buf.release();
          return Unpooled.EMPTY_BUFFER;
        }
      } finally {
        if (!success && buf != null) {
          buf.release();
        }
      }
    }
Exemplo n.º 7
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  public <SEND extends MessageLite, RECEIVE extends MessageLite> void send(
      RpcOutcomeListener<RECEIVE> listener,
      C connection,
      T rpcType,
      SEND protobufBody,
      Class<RECEIVE> clazz,
      boolean allowInEventLoop,
      ByteBuf... dataBodies) {

    Preconditions.checkArgument(
        allowInEventLoop || !connection.inEventLoop(),
        "You attempted to send while inside the rpc event thread.  This isn't allowed because sending will block if the channel is backed up.");

    ByteBuf pBuffer = null;
    boolean completed = false;

    try {

      if (!allowInEventLoop && !connection.blockOnNotWritable(listener)) {
        // if we're in not in the event loop and we're interrupted while blocking, skip sending this
        // message.
        return;
      }

      assert !Arrays.asList(dataBodies).contains(null);
      assert rpcConfig.checkSend(rpcType, protobufBody.getClass(), clazz);

      Preconditions.checkNotNull(protobufBody);
      ChannelListenerWithCoordinationId futureListener = queue.get(listener, clazz, connection);
      OutboundRpcMessage m =
          new OutboundRpcMessage(
              RpcMode.REQUEST,
              rpcType,
              futureListener.getCoordinationId(),
              protobufBody,
              dataBodies);
      ChannelFuture channelFuture = connection.getChannel().writeAndFlush(m);
      channelFuture.addListener(futureListener);
      channelFuture.addListener(ChannelFutureListener.FIRE_EXCEPTION_ON_FAILURE);
      completed = true;
    } catch (Exception | AssertionError e) {
      listener.failed(new RpcException("Failure sending message.", e));
    } finally {
      if (!completed) {
        if (pBuffer != null) {
          pBuffer.release();
        }
        if (dataBodies != null) {
          for (ByteBuf b : dataBodies) {
            b.release();
          }
        }
      }
      ;
    }
  }
Exemplo n.º 8
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 @Override
 protected void deallocate() {
   if (currentHeader != null) {
     currentHeader.release();
   }
   if (buf != null) {
     buf.release();
   }
   if (region != null) {
     region.release();
   }
 }
Exemplo n.º 9
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  @Override
  public ByteBuf readPacket() throws IOException {
    Preconditions.checkState(!mClosed, "PacketReader is closed while reading packets.");
    ByteBuf buf = null;
    mLock.lock();
    try {
      while (true) {
        if (mDone) {
          return null;
        }
        if (mPacketReaderException != null) {
          throw new IOException(mPacketReaderException);
        }
        buf = mPackets.poll();

        // TODO(peis): Have a better criteria to resume so that we can have fewer state changes.
        if (!tooManyPacketsPending()) {
          resume();
        }
        // Queue is empty.
        if (buf == null) {
          try {
            if (!mNotEmptyOrFailed.await(READ_TIMEOUT_MS, TimeUnit.MILLISECONDS)) {
              throw new IOException(
                  String.format("Timeout while reading packet from block %d @ %s.", mId, mAddress));
            }
          } catch (InterruptedException e) {
            throw Throwables.propagate(e);
          }
        } else {
          if (buf.readableBytes() == 0) {
            buf.release();
            mDone = true;
            return null;
          }
          mPosToRead += buf.readableBytes();
          Preconditions.checkState(mPosToRead - mStart <= mBytesToRead);
          return buf;
        }
      }
    } catch (Throwable e) {
      if (buf != null) {
        buf.release();
      }
      throw e;
    } finally {
      mLock.unlock();
    }
  }
Exemplo n.º 10
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  @Test
  public void testGZIP2() throws Exception {
    ByteBuf data = Unpooled.wrappedBuffer("message".getBytes(CharsetUtil.UTF_8));
    ByteBuf deflatedData = Unpooled.wrappedBuffer(gzip("message"));

    EmbeddedChannel chDecoderGZip = new EmbeddedChannel(createDecoder(ZlibWrapper.GZIP));
    chDecoderGZip.writeInbound(deflatedData.copy());
    assertTrue(chDecoderGZip.finish());
    ByteBuf buf = chDecoderGZip.readInbound();
    assertEquals(buf, data);
    assertNull(chDecoderGZip.readInbound());
    data.release();
    deflatedData.release();
    buf.release();
  }
Exemplo n.º 11
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  private void testCompress0(ZlibWrapper encoderWrapper, ZlibWrapper decoderWrapper, ByteBuf data)
      throws Exception {
    EmbeddedChannel chEncoder = new EmbeddedChannel(createEncoder(encoderWrapper));

    chEncoder.writeOutbound(data.copy());
    chEncoder.flush();

    EmbeddedChannel chDecoderZlib = new EmbeddedChannel(createDecoder(decoderWrapper));
    for (; ; ) {
      ByteBuf deflatedData = chEncoder.readOutbound();
      if (deflatedData == null) {
        break;
      }
      chDecoderZlib.writeInbound(deflatedData);
    }

    byte[] decompressed = new byte[data.readableBytes()];
    int offset = 0;
    for (; ; ) {
      ByteBuf buf = chDecoderZlib.readInbound();
      if (buf == null) {
        break;
      }
      int length = buf.readableBytes();
      buf.readBytes(decompressed, offset, length);
      offset += length;
      buf.release();
      if (offset == decompressed.length) {
        break;
      }
    }
    assertEquals(data, Unpooled.wrappedBuffer(decompressed));
    assertNull(chDecoderZlib.readInbound());

    // Closing an encoder channel will generate a footer.
    assertTrue(chEncoder.finish());
    for (; ; ) {
      Object msg = chEncoder.readOutbound();
      if (msg == null) {
        break;
      }
      ReferenceCountUtil.release(msg);
    }
    // But, the footer will be decoded into nothing. It's only for validation.
    assertFalse(chDecoderZlib.finish());

    data.release();
  }
  public void encodeJsonP(
      Integer jsonpIndex, Queue<Packet> packets, ByteBuf out, ByteBufAllocator allocator, int limit)
      throws IOException {
    boolean jsonpMode = jsonpIndex != null;

    ByteBuf buf = allocateBuffer(allocator);

    int i = 0;
    while (true) {
      Packet packet = packets.poll();
      if (packet == null || i == limit) {
        break;
      }

      ByteBuf packetBuf = allocateBuffer(allocator);
      encodePacket(packet, packetBuf, allocator, true);

      int packetSize = packetBuf.writerIndex();
      buf.writeBytes(toChars(packetSize));
      buf.writeBytes(B64_DELIMITER);
      buf.writeBytes(packetBuf);

      packetBuf.release();

      i++;

      for (ByteBuf attachment : packet.getAttachments()) {
        ByteBuf encodedBuf = Base64.encode(attachment, Base64Dialect.URL_SAFE);
        buf.writeBytes(toChars(encodedBuf.readableBytes() + 2));
        buf.writeBytes(B64_DELIMITER);
        buf.writeBytes(BINARY_HEADER);
        buf.writeBytes(encodedBuf);
      }
    }

    if (jsonpMode) {
      out.writeBytes(JSONP_HEAD);
      out.writeBytes(toChars(jsonpIndex));
      out.writeBytes(JSONP_START);
    }

    processUtf8(buf, out, jsonpMode);
    buf.release();

    if (jsonpMode) {
      out.writeBytes(JSONP_END);
    }
  }
Exemplo n.º 13
0
    /**
     * Reads the content of the entry into a new buffer. Use {@link #readContent(ByteBufAllocator,
     * InputStream)} when the length of the stream is unknown.
     */
    protected ByteBuf readContent(ByteBufAllocator alloc, InputStream in, int length)
        throws IOException {
      if (length == 0) {
        return Unpooled.EMPTY_BUFFER;
      }

      ByteBuf buf = null;
      boolean success = false;
      try {
        buf = alloc.directBuffer(length);

        int remaining = length;
        for (; ; ) {
          final int readBytes = buf.writeBytes(in, remaining);
          if (readBytes < 0) {
            break;
          }
          remaining -= readBytes;
          if (remaining <= 0) {
            break;
          }
        }

        success = true;
        return buf;
      } finally {
        if (!success && buf != null) {
          buf.release();
        }
      }
    }
Exemplo n.º 14
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 @Override
 public MessageBuffer<ByteBuf> writeStrings(String... messages) {
   ByteBuf strMultiBuf = NettyUtils.writeStrings(messages);
   buffer.writeBytes(strMultiBuf);
   strMultiBuf.release();
   return this;
 }
 @Override
 public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
   logger.debug("================进入客户端InBoundHandler channelRead============");
   // 如果是response
   if (msg instanceof HttpResponse) {
     HttpResponse response = (HttpResponse) msg;
     logger.debug(
         "客户端收到的响应CONTENT_TYPE:" + response.headers().get(HttpHeaders.Names.CONTENT_TYPE));
     if (HttpHeaders.isContentLengthSet(response)) {
       reader = new ByteBufToBytes((int) HttpHeaders.getContentLength(response));
     }
   }
   if (msg instanceof HttpContent) {
     HttpContent httpContent = (HttpContent) msg;
     ByteBuf content = httpContent.content();
     reader.reading(content);
     content.release();
     if (reader.isEnd()) {
       String resultStr = new String(reader.readFull());
       logger.debug("收到的服务端的消息是:" + resultStr);
       ctx.close();
     }
   }
   logger.debug("================出客户端InBoundHandler channelRead============");
 }
 @Override
 protected void decode(ChannelHandlerContext ctx, ByteBuf in, List<Object> out) throws Exception {
   Protocol.DirectionData prot = this.server ? this.protocol.TO_SERVER : this.protocol.TO_CLIENT;
   ByteBuf copy = in.copy();
   try {
     int packetId = DefinedPacket.readVarInt(in);
     DefinedPacket packet = null;
     if (prot.hasPacket(packetId)) {
       packet = prot.createPacket(packetId);
       packet.read(in, prot.getDirection(), this.protocolVersion);
       if (in.readableBytes() != 0) {
         throw new BadPacketException(
             "Did not read all bytes from packet "
                 + packet.getClass()
                 + " "
                 + packetId
                 + " Protocol "
                 + this.protocol
                 + " Direction "
                 + prot);
       }
     } else {
       in.skipBytes(in.readableBytes());
     }
     out.add(new PacketWrapper(packet, copy));
     copy = null;
   } finally {
     if (copy != null) {
       copy.release();
     }
   }
 }
Exemplo n.º 17
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  @Override
  public HttpContent readChunk(ChannelHandlerContext ctx) throws Exception {
    long offset = this.offset;
    if (offset >= endOffset) {
      if (sentLastChunk) {
        return null;
      } else {
        // Send last chunk for this file
        sentLastChunk = true;
        return new DefaultLastHttpContent();
      }
    }

    int chunkSize = (int) Math.min(this.chunkSize, endOffset - offset);
    // Check if the buffer is backed by an byte array. If so we can optimize it a bit an safe a copy

    ByteBuf buf = ctx.alloc().heapBuffer(chunkSize);
    boolean release = true;
    try {
      file.readFully(buf.array(), buf.arrayOffset(), chunkSize);
      buf.writerIndex(chunkSize);
      this.offset = offset + chunkSize;
      release = false;
      return new DefaultHttpContent(buf);
    } finally {
      if (release) {
        buf.release();
      }
    }
  }
Exemplo n.º 18
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    /**
     * Decodes the client connection preface string from the input buffer.
     *
     * @return {@code true} if processing of the client preface string is complete. Since client
     *     preface strings can only be received by servers, returns true immediately for client
     *     endpoints.
     */
    private boolean readClientPrefaceString(ByteBuf in) throws Http2Exception {
      if (clientPrefaceString == null) {
        return true;
      }

      int prefaceRemaining = clientPrefaceString.readableBytes();
      int bytesRead = min(in.readableBytes(), prefaceRemaining);

      // If the input so far doesn't match the preface, break the connection.
      if (bytesRead == 0
          || !ByteBufUtil.equals(
              in,
              in.readerIndex(),
              clientPrefaceString,
              clientPrefaceString.readerIndex(),
              bytesRead)) {
        String receivedBytes =
            hexDump(
                in, in.readerIndex(), min(in.readableBytes(), clientPrefaceString.readableBytes()));
        throw connectionError(
            PROTOCOL_ERROR,
            "HTTP/2 client preface string missing or corrupt. " + "Hex dump for received bytes: %s",
            receivedBytes);
      }
      in.skipBytes(bytesRead);
      clientPrefaceString.skipBytes(bytesRead);

      if (!clientPrefaceString.isReadable()) {
        // Entire preface has been read.
        clientPrefaceString.release();
        clientPrefaceString = null;
        return true;
      }
      return false;
    }
Exemplo n.º 19
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 private static void processGoAwayWriteResult(
     final ChannelHandlerContext ctx,
     final int lastStreamId,
     final long errorCode,
     final ByteBuf debugData,
     ChannelFuture future) {
   try {
     if (future.isSuccess()) {
       if (errorCode != NO_ERROR.code()) {
         if (logger.isDebugEnabled()) {
           logger.debug(
               format(
                   "Sent GOAWAY: lastStreamId '%d', errorCode '%d', "
                       + "debugData '%s'. Forcing shutdown of the connection.",
                   lastStreamId, errorCode, debugData.toString(UTF_8)),
               future.cause());
         }
         ctx.close();
       }
     } else {
       if (logger.isErrorEnabled()) {
         logger.error(
             format(
                 "Sending GOAWAY failed: lastStreamId '%d', errorCode '%d', "
                     + "debugData '%s'. Forcing shutdown of the connection.",
                 lastStreamId, errorCode, debugData.toString(UTF_8)),
             future.cause());
       }
       ctx.close();
     }
   } finally {
     // We're done with the debug data now.
     debugData.release();
   }
 }
 private static void sendListing(ChannelHandlerContext ctx, File dir) {
   FullHttpResponse response = new DefaultFullHttpResponse(HTTP_1_1, OK);
   response.headers().set(CONTENT_TYPE, "text/html; charset=UTF-8");
   StringBuilder buf = new StringBuilder();
   String dirPath = dir.getPath();
   buf.append("<!DOCTYPE html>\r\n");
   buf.append("<html><head><title>");
   buf.append(dirPath);
   buf.append(" 目录:");
   buf.append("</title></head><body>\r\n");
   buf.append("<h3>");
   buf.append(dirPath).append(" 目录:");
   buf.append("</h3>\r\n");
   buf.append("<ul>");
   buf.append("<li>链接:<a href=\"../\">..</a></li>\r\n");
   for (File f : dir.listFiles()) {
     if (f.isHidden() || !f.canRead()) {
       continue;
     }
     String name = f.getName();
     if (!ALLOWED_FILE_NAME.matcher(name).matches()) {
       continue;
     }
     buf.append("<li>链接:<a href=\"");
     buf.append(name);
     buf.append("\">");
     buf.append(name);
     buf.append("</a></li>\r\n");
   }
   buf.append("</ul></body></html>\r\n");
   ByteBuf buffer = Unpooled.copiedBuffer(buf, CharsetUtil.UTF_8);
   response.content().writeBytes(buffer);
   buffer.release();
   ctx.writeAndFlush(response).addListener(ChannelFutureListener.CLOSE);
 }
Exemplo n.º 21
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  @Override
  protected int doReadMessages(List<Object> buf) throws Exception {
    SctpChannel ch = javaChannel();

    RecvByteBufAllocator.Handle allocHandle = unsafe().recvBufAllocHandle();
    ByteBuf buffer = allocHandle.allocate(config().getAllocator());
    boolean free = true;
    try {
      ByteBuffer data = buffer.internalNioBuffer(buffer.writerIndex(), buffer.writableBytes());
      int pos = data.position();

      MessageInfo messageInfo = ch.receive(data, null, notificationHandler);
      if (messageInfo == null) {
        return 0;
      }
      buf.add(
          new SctpMessage(
              messageInfo, buffer.writerIndex(buffer.writerIndex() + data.position() - pos)));
      free = false;
      return 1;
    } catch (Throwable cause) {
      PlatformDependent.throwException(cause);
      return -1;
    } finally {
      int bytesRead = buffer.readableBytes();
      allocHandle.record(bytesRead);
      if (free) {
        buffer.release();
      }
    }
  }
Exemplo n.º 22
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  private void testCompressNone(ZlibWrapper encoderWrapper, ZlibWrapper decoderWrapper)
      throws Exception {
    EmbeddedChannel chEncoder = new EmbeddedChannel(createEncoder(encoderWrapper));

    // Closing an encoder channel without writing anything should generate both header and footer.
    assertTrue(chEncoder.finish());

    EmbeddedChannel chDecoderZlib = new EmbeddedChannel(createDecoder(decoderWrapper));
    for (; ; ) {
      ByteBuf deflatedData = chEncoder.readOutbound();
      if (deflatedData == null) {
        break;
      }
      chDecoderZlib.writeInbound(deflatedData);
    }

    // Decoder should not generate anything at all.
    for (; ; ) {
      ByteBuf buf = chDecoderZlib.readInbound();
      if (buf == null) {
        break;
      }

      buf.release();
      fail("should decode nothing");
    }

    assertFalse(chDecoderZlib.finish());
  }
  @Override
  public void appendMessages(Tpp tpp, Collection<MessageBatchWithRawData> batches)
      throws Exception {
    ByteBuf bodyBuf = Unpooled.buffer();
    KafkaMessageBrokerSender sender = getSender(tpp.getTopic());
    try {
      for (MessageBatchWithRawData batch : batches) {
        List<PartialDecodedMessage> pdmsgs = batch.getMessages();
        for (PartialDecodedMessage pdmsg : pdmsgs) {
          m_messageCodec.encodePartial(pdmsg, bodyBuf);
          byte[] bytes = new byte[bodyBuf.readableBytes()];
          bodyBuf.readBytes(bytes);
          bodyBuf.clear();

          ByteBuf propertiesBuf = pdmsg.getDurableProperties();
          HermesPrimitiveCodec codec = new HermesPrimitiveCodec(propertiesBuf);
          Map<String, String> propertiesMap = codec.readStringStringMap();
          sender.send(tpp.getTopic(), propertiesMap.get("pK"), bytes);
          BrokerStatusMonitor.INSTANCE.kafkaSend(tpp.getTopic());
        }
      }
    } finally {
      bodyBuf.release();
    }
  }
 @Override
 public void handlerRemoved(ChannelHandlerContext ctx) throws Exception {
   if (channelBuffer.refCnt() >= 1) {
     channelBuffer.release();
   }
   super.handlerRemoved(ctx);
 }
Exemplo n.º 25
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 @Override
 protected int doWrite(MessageList<Object> msgs, int index) throws Exception {
   int size = msgs.size();
   int writeIndex = index;
   for (; ; ) {
     if (writeIndex >= size) {
       break;
     }
     Object msg = msgs.get(writeIndex);
     if (msg instanceof ByteBuf) {
       ByteBuf buf = (ByteBuf) msg;
       while (buf.isReadable()) {
         doWriteBytes(buf);
       }
       buf.release();
       writeIndex++;
     } else if (msg instanceof FileRegion) {
       FileRegion region = (FileRegion) msg;
       doWriteFileRegion(region);
       region.release();
       writeIndex++;
     } else {
       throw new UnsupportedOperationException(
           "unsupported message type: " + StringUtil.simpleClassName(msg));
     }
   }
   return writeIndex - index;
 }
Exemplo n.º 26
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 public void clear() {
   if (buffer != null && buffer != DeadBuf.DEAD_BUFFER) {
     buffer.release();
     buffer = DeadBuf.DEAD_BUFFER;
     recordCount = 0;
   }
 }
Exemplo n.º 27
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  @Override
  protected int doReadMessages(List<Object> buf) throws Exception {
    DatagramChannel ch = javaChannel();
    DatagramChannelConfig config = config();
    RecvByteBufAllocator.Handle allocHandle = this.allocHandle;
    if (allocHandle == null) {
      this.allocHandle = allocHandle = config.getRecvByteBufAllocator().newHandle();
    }
    ByteBuf data = allocHandle.allocate(config.getAllocator());
    boolean free = true;
    try {
      ByteBuffer nioData = data.internalNioBuffer(data.writerIndex(), data.writableBytes());
      int pos = nioData.position();
      InetSocketAddress remoteAddress = (InetSocketAddress) ch.receive(nioData);
      if (remoteAddress == null) {
        return 0;
      }

      int readBytes = nioData.position() - pos;
      data.writerIndex(data.writerIndex() + readBytes);
      allocHandle.record(readBytes);

      buf.add(new DatagramPacket(data, localAddress(), remoteAddress));
      free = false;
      return 1;
    } catch (Throwable cause) {
      PlatformDependent.throwException(cause);
      return -1;
    } finally {
      if (free) {
        data.release();
      }
    }
  }
Exemplo n.º 28
0
  static ByteBuf[] readCertificates(File file) throws CertificateException {
    String content;
    try {
      content = readContent(file);
    } catch (IOException e) {
      throw new CertificateException("failed to read a file: " + file, e);
    }

    List<ByteBuf> certs = new ArrayList<ByteBuf>();
    Matcher m = CERT_PATTERN.matcher(content);
    int start = 0;
    for (; ; ) {
      if (!m.find(start)) {
        break;
      }

      ByteBuf base64 = Unpooled.copiedBuffer(m.group(1), CharsetUtil.US_ASCII);
      ByteBuf der = Base64.decode(base64);
      base64.release();
      certs.add(der);

      start = m.end();
    }

    if (certs.isEmpty()) {
      throw new CertificateException("found no certificates: " + file);
    }

    return certs.toArray(new ByteBuf[certs.size()]);
  }
Exemplo n.º 29
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  public ByteBuf readChunk(ChannelHandlerContext var1) throws Exception {
    long var2 = this.offset;
    if (var2 >= this.endOffset) {
      return null;
    } else {
      int var4 = (int) Math.min((long) this.chunkSize, this.endOffset - var2);
      ByteBuf var5 = var1.alloc().buffer(var4);
      boolean var6 = true;

      try {
        int var7 = 0;

        while (true) {
          int var8 = var5.writeBytes((ScatteringByteChannel) this.in, var4 - var7);
          if (var8 >= 0) {
            var7 += var8;
            if (var7 != var4) {
              continue;
            }
          }

          this.offset += (long) var7;
          var6 = false;
          ByteBuf var12 = var5;
          return var12;
        }
      } finally {
        if (var6) {
          var5.release();
        }
      }
    }
  }
Exemplo n.º 30
0
 /**
  * Adds a fragment to the block.
  *
  * @param fragment the fragment of the headers block to be added.
  * @param alloc allocator for new blocks if needed.
  * @param endOfHeaders flag indicating whether the current frame is the end of the headers. This
  *     is used for an optimization for when the first fragment is the full block. In that case,
  *     the buffer is used directly without copying.
  */
 final void addFragment(ByteBuf fragment, ByteBufAllocator alloc, boolean endOfHeaders)
     throws Http2Exception {
   if (headerBlock == null) {
     if (fragment.readableBytes() > headersDecoder.configuration().maxHeaderSize()) {
       headerSizeExceeded();
     }
     if (endOfHeaders) {
       // Optimization - don't bother copying, just use the buffer as-is. Need
       // to retain since we release when the header block is built.
       headerBlock = fragment.retain();
     } else {
       headerBlock = alloc.buffer(fragment.readableBytes());
       headerBlock.writeBytes(fragment);
     }
     return;
   }
   if (headersDecoder.configuration().maxHeaderSize() - fragment.readableBytes()
       < headerBlock.readableBytes()) {
     headerSizeExceeded();
   }
   if (headerBlock.isWritable(fragment.readableBytes())) {
     // The buffer can hold the requested bytes, just write it directly.
     headerBlock.writeBytes(fragment);
   } else {
     // Allocate a new buffer that is big enough to hold the entire header block so far.
     ByteBuf buf = alloc.buffer(headerBlock.readableBytes() + fragment.readableBytes());
     buf.writeBytes(headerBlock);
     buf.writeBytes(fragment);
     headerBlock.release();
     headerBlock = buf;
   }
 }