@Override public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) throws Exception { if (!isIgnorableException(cause)) { LOGGER.error("", cause); if (ctx.channel().isActive()) { sendError(ctx, HttpResponseStatus.INTERNAL_SERVER_ERROR); } } }
private static void sendError(ChannelHandlerContext ctx, HttpResponseStatus status) { FullHttpResponse response = new DefaultFullHttpResponse( HttpVersion.HTTP_1_1, status, Unpooled.copiedBuffer("Failure: " + status.toString() + "\r\n", CharsetUtil.UTF_8)); response.headers().set(HttpHeaderConstants.CONTENT_TYPE, "text/plain; charset=UTF-8"); // Close the connection as soon as the error message is sent. ctx.write(response).addListener(ChannelFutureListener.CLOSE); }
@Override public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception { if (!(msg instanceof FullHttpRequest)) { Action<Object> subscriber = channelSubscriptions.get(ctx.channel()); if (subscriber != null) { subscriber.execute(msg); return; } } super.channelRead(ctx, msg); }
public void channelRead0(final ChannelHandlerContext ctx, final FullHttpRequest nettyRequest) throws Exception { if (!nettyRequest.getDecoderResult().isSuccess()) { sendError(ctx, HttpResponseStatus.BAD_REQUEST); return; } final long startTime = addResponseTimeHeader ? System.nanoTime() : 0; final Request request = new DefaultRequest( new NettyHeadersBackedHeaders(nettyRequest.headers()), nettyRequest.getMethod().name(), nettyRequest.getUri(), nettyRequest.content()); final Channel channel = ctx.channel(); final DefaultMutableStatus responseStatus = new DefaultMutableStatus(); final HttpHeaders nettyHeaders = new DefaultHttpHeaders(false); final MutableHeaders responseHeaders = new NettyHeadersBackedMutableHeaders(nettyHeaders); final MimeTypes mimeTypes = registry.get(MimeTypes.class); final DefaultEventController<RequestOutcome> requestOutcomeEventController = new DefaultEventController<>(); final AtomicBoolean transmitted = new AtomicBoolean(false); final ResponseTransmitter responseTransmitter = new DefaultResponseTransmitter( transmitted, channel, nettyRequest, request, nettyHeaders, responseStatus, requestOutcomeEventController, startTime); final Action<Action<? super ResponseTransmitter>> responseTransmitterWrapper = Actions.wrap(responseTransmitter); final FileHttpTransmitter fileHttpTransmitter = new DefaultFileHttpTransmitter( nettyHeaders, mimeTypes, compressResponses, compressionMinSize, compressionMimeTypeWhiteList, compressionMimeTypeBlackList, responseTransmitterWrapper); StreamTransmitter streamTransmitter = new DefaultStreamTransmitter(nettyRequest, nettyHeaders, channel); final Response response = new DefaultResponse( responseStatus, responseHeaders, fileHttpTransmitter, streamTransmitter, ctx.alloc(), new Action<ByteBuf>() { @Override public void execute(final ByteBuf byteBuf) throws Exception { responseTransmitterWrapper.execute( new Action<ResponseTransmitter>() { @Override public void execute(ResponseTransmitter responseTransmitter) throws Exception { nettyHeaders.set(HttpHeaders.Names.CONTENT_LENGTH, byteBuf.writerIndex()); responseTransmitter.transmit(new DefaultHttpContent(byteBuf)); } }); } }); InetSocketAddress socketAddress = (InetSocketAddress) channel.localAddress(); final BindAddress bindAddress = new InetSocketAddressBackedBindAddress(socketAddress); Action<Action<Object>> subscribeHandler = new Action<Action<Object>>() { @Override public void execute(Action<Object> thing) throws Exception { transmitted.set(true); channelSubscriptions.put(channel, thing); channel .closeFuture() .addListener( new ChannelFutureListener() { @Override public void operationComplete(ChannelFuture future) throws Exception { channelSubscriptions.remove(channel); } }); } }; final DirectChannelAccess directChannelAccess = new DefaultDirectChannelAccess(channel, subscribeHandler); final DefaultContext.RequestConstants requestConstants = new DefaultContext.RequestConstants( applicationConstants, bindAddress, request, response, directChannelAccess, requestOutcomeEventController.getRegistry()); DefaultContext.start( execController.getControl(), requestConstants, registry, handlers, return404, new Action<Execution>() { @Override public void execute(Execution execution) throws Exception { if (!transmitted.get()) { Handler lastHandler = requestConstants.handler; StringBuilder description = new StringBuilder(); description .append("No response sent for ") .append(request.getMethod().getName()) .append(" request to ") .append(request.getUri()) .append(" (last handler: "); if (lastHandler instanceof DescribingHandler) { ((DescribingHandler) lastHandler).describeTo(description); } else { DescribingHandlers.describeTo(lastHandler, description); } description.append(")"); String message = description.toString(); LOGGER.warn(message); response.status(500); if (launchConfig.isDevelopment()) { response.send(message); } else { response.send(); } } } }); }