Examples with FullHttpResponse org.apache.flink.shaded.netty4.io.netty.handler.codec.http.FullHttpResponse used on opensource projects

Example 26 with FullHttpResponse

use of org.apache.flink.shaded.netty4.io.netty.handler.codec.http.FullHttpResponse in project dubbo by alibaba.

the class HttpProcessHandler method http_500.

private static final FullHttpResponse http_500(String errorMessage) {
    FullHttpResponse response = new DefaultFullHttpResponse(HttpVersion.HTTP_1_1, HttpResponseStatus.INTERNAL_SERVER_ERROR, Unpooled.wrappedBuffer(errorMessage.getBytes()));
    HttpHeaders httpHeaders = response.headers();
    httpHeaders.set(HttpHeaders.Names.CONTENT_TYPE, "text/plain");
    httpHeaders.set(HttpHeaders.Names.CONTENT_LENGTH, response.content().readableBytes());
    return response;
}

Example 27 with FullHttpResponse

use of org.apache.flink.shaded.netty4.io.netty.handler.codec.http.FullHttpResponse in project riposte by Nike-Inc.

the class StreamingAsyncHttpClient method prepChannelForDownstreamCall.

protected void prepChannelForDownstreamCall(ChannelPool pool, Channel ch, StreamingCallback callback, Deque<Span> distributedSpanStackToUse, Map<String, String> mdcContextToUse, boolean isSecureHttpsCall, boolean relaxedHttpsValidation, boolean performSubSpanAroundDownstreamCalls, long downstreamCallTimeoutMillis, ObjectHolder<Boolean> callActiveHolder, ObjectHolder<Boolean> lastChunkSentDownstreamHolder) throws SSLException, NoSuchAlgorithmException, KeyStoreException {
    ChannelHandler chunkSenderHandler = new SimpleChannelInboundHandler<HttpObject>() {

        @Override
        protected void channelRead0(ChannelHandlerContext downstreamCallCtx, HttpObject msg) throws Exception {
            try {
                // the call is fully processed should not trigger the behavior a second time.
                if (callActiveHolder.heldObject) {
                    if (msg instanceof LastHttpContent) {
                        lastChunkSentDownstreamHolder.heldObject = true;
                        if (performSubSpanAroundDownstreamCalls) {
                            // Complete the subspan.
                            runnableWithTracingAndMdc(() -> {
                                if (distributedSpanStackToUse == null || distributedSpanStackToUse.size() < 2)
                                    Tracer.getInstance().completeRequestSpan();
                                else
                                    Tracer.getInstance().completeSubSpan();
                            }, distributedSpanStackToUse, mdcContextToUse).run();
                        }
                    }
                    HttpObject msgToPass = msg;
                    if (msg instanceof HttpResponse) {
                        // We can't pass the original HttpResponse back to the callback due to intricacies of how
                        // Netty handles determining the last chunk. If we do, and the callback ends up writing
                        // the message out to the client (which happens during proxy routing for example), then
                        // msg's headers might get modified - potentially causing this channel pipeline to
                        // never send a LastHttpContent, which will in turn cause an indefinite hang.
                        HttpResponse origHttpResponse = (HttpResponse) msg;
                        HttpResponse httpResponse = (msg instanceof FullHttpResponse) ? new DefaultFullHttpResponse(origHttpResponse.getProtocolVersion(), origHttpResponse.getStatus(), ((FullHttpResponse) msg).content()) : new DefaultHttpResponse(origHttpResponse.getProtocolVersion(), origHttpResponse.getStatus());
                        httpResponse.headers().add(origHttpResponse.headers());
                        msgToPass = httpResponse;
                    }
                    callback.messageReceived(msgToPass);
                } else {
                    if (shouldLogBadMessagesAfterRequestFinishes) {
                        runnableWithTracingAndMdc(() -> logger.warn("Received HttpObject msg when call was not active: {}", String.valueOf(msg)), distributedSpanStackToUse, mdcContextToUse).run();
                    }
                }
            } finally {
                if (msg instanceof LastHttpContent) {
                    releaseChannelBackToPoolIfCallIsActive(ch, pool, callActiveHolder, "last content chunk sent", distributedSpanStackToUse, mdcContextToUse);
                }
            }
        }
    };
    Consumer<Throwable> doErrorHandlingConsumer = (cause) -> {
        Pair<Deque<Span>, Map<String, String>> originalThreadInfo = null;
        try {
            // Setup tracing and MDC so our log messages have the correct distributed trace info, etc.
            originalThreadInfo = linkTracingAndMdcToCurrentThread(distributedSpanStackToUse, mdcContextToUse);
            // call is fully processed should not trigger the behavior a second time.
            if (callActiveHolder.heldObject) {
                if (performSubSpanAroundDownstreamCalls) {
                    if (distributedSpanStackToUse == null || distributedSpanStackToUse.size() < 2)
                        Tracer.getInstance().completeRequestSpan();
                    else
                        Tracer.getInstance().completeSubSpan();
                }
                Tracer.getInstance().unregisterFromThread();
                if (cause instanceof Errors.NativeIoException) {
                    // NativeIoExceptions are often setup to not have stack traces which is bad for debugging.
                    // Wrap it in a NativeIoExceptionWrapper that maps to a 503 since this is likely a busted
                    // connection and a second attempt should work.
                    cause = new NativeIoExceptionWrapper("Caught a NativeIoException in the downstream streaming call pipeline. Wrapped it in a " + "NativeIoExceptionWrapper so that it maps to a 503 and provides a usable stack trace " + "in the logs.", (Errors.NativeIoException) cause);
                }
                callback.unrecoverableErrorOccurred(cause, true);
            } else {
                if (cause instanceof DownstreamIdleChannelTimeoutException) {
                    logger.debug("A channel used for downstream calls will be closed because it was idle too long. " + "This is normal behavior and does not indicate a downstream call failure: {}", cause.toString());
                } else {
                    logger.warn("Received exception in downstream call pipeline after the call was finished. " + "Not necessarily anything to worry about but in case it helps debugging the " + "exception was: {}", cause.toString());
                }
            }
        } finally {
            // Mark the channel as broken so it will be closed and removed from the pool when it is returned.
            markChannelAsBroken(ch);
            // Release it back to the pool if possible/necessary so the pool can do its usual cleanup.
            releaseChannelBackToPoolIfCallIsActive(ch, pool, callActiveHolder, "error received in downstream pipeline: " + cause.toString(), distributedSpanStackToUse, mdcContextToUse);
            // No matter what the cause is we want to make sure the channel is closed. Doing this raw ch.close()
            // here will catch the cases where this channel does not have an active call but still needs to be
            // closed (e.g. an idle channel timeout that happens in-between calls).
            ch.close();
            // Unhook the tracing and MDC stuff from this thread now that we're done.
            unlinkTracingAndMdcFromCurrentThread(originalThreadInfo);
        }
    };
    ChannelHandler errorHandler = new ChannelInboundHandlerAdapter() {

        @Override
        public void exceptionCaught(ChannelHandlerContext downstreamCallCtx, Throwable cause) throws Exception {
            doErrorHandlingConsumer.accept(cause);
        }

        @Override
        public void channelInactive(ChannelHandlerContext ctx) throws Exception {
            if (logger.isDebugEnabled()) {
                runnableWithTracingAndMdc(() -> logger.debug("Downstream channel closing. call_active={}, last_chunk_sent_downstream={}, channel_id={}", callActiveHolder.heldObject, lastChunkSentDownstreamHolder.heldObject, ctx.channel().toString()), distributedSpanStackToUse, mdcContextToUse).run();
            }
            // We only care if the channel was closed while the call was active.
            if (callActiveHolder.heldObject)
                doErrorHandlingConsumer.accept(new DownstreamChannelClosedUnexpectedlyException(ch));
            super.channelInactive(ctx);
        }
    };
    // Set up the HTTP client pipeline.
    ChannelPipeline p = ch.pipeline();
    List<String> registeredHandlerNames = p.names();
    // couldn't be removed at that time because it wasn't in the channel's eventLoop.
    if (registeredHandlerNames.contains(DOWNSTREAM_IDLE_CHANNEL_TIMEOUT_HANDLER_NAME)) {
        ChannelHandler idleHandler = p.get(DOWNSTREAM_IDLE_CHANNEL_TIMEOUT_HANDLER_NAME);
        if (idleHandler != null)
            p.remove(idleHandler);
    }
    if (debugChannelLifecycleLoggingEnabled && !registeredHandlerNames.contains(DEBUG_LOGGER_HANDLER_NAME)) {
        // Add the channel debug logger if desired.
        p.addFirst(DEBUG_LOGGER_HANDLER_NAME, new LoggingHandler(DOWNSTREAM_CLIENT_CHANNEL_DEBUG_LOGGER_NAME, LogLevel.DEBUG));
    }
    // Add/replace a downstream call timeout detector.
    addOrReplacePipelineHandler(new DownstreamIdleChannelTimeoutHandler(downstreamCallTimeoutMillis, () -> callActiveHolder.heldObject, true, "StreamingAsyncHttpClientChannel-call-timeout", distributedSpanStackToUse, mdcContextToUse), DOWNSTREAM_CALL_TIMEOUT_HANDLER_NAME, p, registeredHandlerNames);
    if (isSecureHttpsCall) {
        // SSL call. Make sure we add the SSL handler if necessary.
        if (!registeredHandlerNames.contains(SSL_HANDLER_NAME)) {
            if (clientSslCtx == null) {
                if (relaxedHttpsValidation) {
                    clientSslCtx = SslContextBuilder.forClient().trustManager(InsecureTrustManagerFactory.INSTANCE).build();
                } else {
                    TrustManagerFactory tmf = TrustManagerFactory.getInstance(TrustManagerFactory.getDefaultAlgorithm());
                    tmf.init((KeyStore) null);
                    clientSslCtx = SslContextBuilder.forClient().trustManager(tmf).build();
                }
            }
            p.addAfter(DOWNSTREAM_CALL_TIMEOUT_HANDLER_NAME, SSL_HANDLER_NAME, clientSslCtx.newHandler(ch.alloc()));
        }
    } else {
        // Not an SSL call. Remove the SSL handler if it's there.
        if (registeredHandlerNames.contains(SSL_HANDLER_NAME))
            p.remove(SSL_HANDLER_NAME);
    }
    // The HttpClientCodec handler deals with HTTP codec stuff so you don't have to. Set it up if it hasn't already
    // been setup, and inspect it to make sure it's in a "ready to handle a new request" state. Some rare
    // and currently unknown edgecases can cause us to hit this point with the HttpClientCodec in an unclean
    // state, and if we barrel forward without cleaning this up the call will fail.
    boolean pipelineContainsHttpClientCodec = registeredHandlerNames.contains(HTTP_CLIENT_CODEC_HANDLER_NAME);
    boolean existingHttpClientCodecIsInBadState = false;
    if (pipelineContainsHttpClientCodec) {
        HttpClientCodec currentCodec = (HttpClientCodec) p.get(HTTP_CLIENT_CODEC_HANDLER_NAME);
        int currentHttpClientCodecInboundState = determineHttpClientCodecInboundState(currentCodec);
        if (currentHttpClientCodecInboundState != 0) {
            runnableWithTracingAndMdc(() -> logger.warn("HttpClientCodec inbound state was not 0. It will be replaced with a fresh HttpClientCodec. " + "bad_httpclientcodec_inbound_state={}", currentHttpClientCodecInboundState), distributedSpanStackToUse, mdcContextToUse).run();
            existingHttpClientCodecIsInBadState = true;
        } else {
            int currentHttpClientCodecOutboundState = determineHttpClientCodecOutboundState(currentCodec);
            if (currentHttpClientCodecOutboundState != 0) {
                runnableWithTracingAndMdc(() -> logger.warn("HttpClientCodec outbound state was not 0. It will be replaced with a fresh HttpClientCodec. " + "bad_httpclientcodec_outbound_state={}", currentHttpClientCodecOutboundState), distributedSpanStackToUse, mdcContextToUse).run();
                existingHttpClientCodecIsInBadState = true;
            }
        }
    }
    // or replace it if it was in a bad state.
    if (!pipelineContainsHttpClientCodec || existingHttpClientCodecIsInBadState) {
        addOrReplacePipelineHandler(new HttpClientCodec(4096, 8192, 8192, true), HTTP_CLIENT_CODEC_HANDLER_NAME, p, registeredHandlerNames);
    }
    // Update the chunk sender handler and error handler to the newly created versions that know about the correct
    // callback, dtrace info, etc to use for this request.
    addOrReplacePipelineHandler(chunkSenderHandler, CHUNK_SENDER_HANDLER_NAME, p, registeredHandlerNames);
    addOrReplacePipelineHandler(errorHandler, ERROR_HANDLER_NAME, p, registeredHandlerNames);
}

Example 28 with FullHttpResponse

use of org.apache.flink.shaded.netty4.io.netty.handler.codec.http.FullHttpResponse in project reactor-netty by reactor.

the class HttpClientOperations method onInboundNext.

@Override
protected void onInboundNext(ChannelHandlerContext ctx, Object msg) {
    if (msg instanceof HttpResponse) {
        HttpResponse response = (HttpResponse) msg;
        if (response.decoderResult().isFailure()) {
            onInboundError(response.decoderResult().cause());
            return;
        }
        if (started) {
            if (log.isDebugEnabled()) {
                log.debug("{} An HttpClientOperations cannot proceed more than one " + "Response", channel(), response.headers().toString());
            }
            return;
        }
        started = true;
        setNettyResponse(response);
        if (!isKeepAlive()) {
            markPersistent(false);
        }
        if (isInboundCancelled()) {
            ReferenceCountUtil.release(msg);
            return;
        }
        if (log.isDebugEnabled()) {
            log.debug("{} Received response (auto-read:{}) : {}", channel(), channel().config().isAutoRead(), responseHeaders().entries().toString());
        }
        if (checkResponseCode(response)) {
            prefetchMore(ctx);
            parentContext().fireContextActive(this);
        }
        if (msg instanceof FullHttpResponse) {
            super.onInboundNext(ctx, msg);
            onHandlerTerminate();
        }
        return;
    }
    if (msg instanceof LastHttpContent) {
        if (!started) {
            if (log.isDebugEnabled()) {
                log.debug("{} HttpClientOperations received an incorrect end " + "delimiter" + "(previously used connection?)", channel());
            }
            return;
        }
        if (log.isDebugEnabled()) {
            log.debug("{} Received last HTTP packet", channel());
        }
        if (msg != LastHttpContent.EMPTY_LAST_CONTENT) {
            super.onInboundNext(ctx, msg);
        }
        // force auto read to enable more accurate close selection now inbound is done
        channel().config().setAutoRead(true);
        onHandlerTerminate();
        return;
    }
    if (!started) {
        if (log.isDebugEnabled()) {
            if (msg instanceof ByteBufHolder) {
                msg = ((ByteBufHolder) msg).content();
            }
            log.debug("{} HttpClientOperations received an incorrect chunk " + "" + "(previously used connection?)", channel(), msg);
        }
        return;
    }
    super.onInboundNext(ctx, msg);
    prefetchMore(ctx);
}

Example 29 with FullHttpResponse

use of org.apache.flink.shaded.netty4.io.netty.handler.codec.http.FullHttpResponse in project reactor-netty by reactor.

the class HttpClientWSOperations method onInboundNext.

@Override
@SuppressWarnings("unchecked")
public void onInboundNext(ChannelHandlerContext ctx, Object msg) {
    if (msg instanceof FullHttpResponse) {
        started = true;
        channel().pipeline().remove(HttpObjectAggregator.class);
        FullHttpResponse response = (FullHttpResponse) msg;
        setNettyResponse(response);
        if (checkResponseCode(response)) {
            try {
                if (!handshaker.isHandshakeComplete()) {
                    handshaker.finishHandshake(channel(), response);
                }
            } catch (WebSocketHandshakeException wshe) {
                if (serverError) {
                    onInboundError(wshe);
                    return;
                }
            } finally {
                // Release unused content (101 status)
                response.content().release();
            }
            parentContext().fireContextActive(this);
            handshakerResult.trySuccess();
        }
        return;
    }
    if (msg instanceof PingWebSocketFrame) {
        channel().writeAndFlush(new PongWebSocketFrame(((PingWebSocketFrame) msg).content()));
        ctx.read();
        return;
    }
    if (msg instanceof CloseWebSocketFrame && ((CloseWebSocketFrame) msg).isFinalFragment()) {
        if (log.isDebugEnabled()) {
            log.debug("CloseWebSocketFrame detected. Closing Websocket");
        }
        CloseWebSocketFrame close = (CloseWebSocketFrame) msg;
        sendClose(new CloseWebSocketFrame(true, close.rsv(), close.content()));
    } else {
        super.onInboundNext(ctx, msg);
    }
}

Example 30 with FullHttpResponse

use of org.apache.flink.shaded.netty4.io.netty.handler.codec.http.FullHttpResponse in project CloudNet by Dytanic.

the class WebsiteDocumentation method get.

@Override
public FullHttpResponse get(ChannelHandlerContext channelHandlerContext, QueryDecoder queryDecoder, PathProvider path, HttpRequest httpRequest) throws Exception {
    CloudNet.getLogger().debug("HTTP Request from " + channelHandlerContext.channel().remoteAddress());
    StringBuilder stringBuilder = new StringBuilder();
    try (InputStream inputStream = WebsiteDocumentation.class.getClassLoader().getResourceAsStream("files/api-doc.txt");
        BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(inputStream, StandardCharsets.UTF_8))) {
        String input;
        while ((input = bufferedReader.readLine()) != null) {
            stringBuilder.append(input).append(System.lineSeparator());
        }
    }
    String output = stringBuilder.substring(0);
    ByteBuf byteBuf = Unpooled.wrappedBuffer(output.getBytes(StandardCharsets.UTF_8));
    FullHttpResponse fullHttpResponse = new DefaultFullHttpResponse(httpRequest.getProtocolVersion(), HttpResponseStatus.OK, byteBuf);
    fullHttpResponse.headers().set("Content-Type", "text/plain");
    return fullHttpResponse;
}