public static void removePluggableHandlers(ChannelPipeline pipeline) {
   for (String name : pipeline.getNames()) {
     if (name.startsWith("pluggable_")) {
       pipeline.remove(name);
     }
   }
 }
  private static void ensureThatExceptionHandlerIsLast(ChannelPipeline pipeline) {
    ChannelInboundHandler exceptionHandler = ChannelExceptionHandler.getInstance();
    if (pipeline.last() != exceptionHandler || pipeline.context(exceptionHandler) == null) {
      return;
    }

    pipeline.remove(exceptionHandler);
    pipeline.addLast(exceptionHandler);
  }
 protected void decode(ChannelHandlerContext context, ByteBuf buffer) throws Exception {
   ChannelPipeline pipeline = context.pipeline();
   if (detectSsl && SslHandler.isEncrypted(buffer)) {
     SSLEngine engine = SSL_SERVER_CONTEXT.getValue().createSSLEngine();
     engine.setUseClientMode(false);
     pipeline.addLast(
         new SslHandler(engine),
         new ChunkedWriteHandler(),
         new PortUnificationServerHandler(delegatingHttpRequestHandler, false, detectGzip));
   } else {
     int magic1 = buffer.getUnsignedByte(buffer.readerIndex());
     int magic2 = buffer.getUnsignedByte(buffer.readerIndex() + 1);
     if (detectGzip && magic1 == 31 && magic2 == 139) {
       pipeline.addLast(
           new JZlibEncoder(ZlibWrapper.GZIP),
           new JdkZlibDecoder(ZlibWrapper.GZIP),
           new PortUnificationServerHandler(delegatingHttpRequestHandler, detectSsl, false));
     } else if (isHttp(magic1, magic2)) {
       NettyUtil.initHttpHandlers(pipeline);
       pipeline.addLast(delegatingHttpRequestHandler);
       if (BuiltInServer.LOG.isDebugEnabled()) {
         pipeline.addLast(
             new ChannelOutboundHandlerAdapter() {
               @Override
               public void write(
                   ChannelHandlerContext context, Object message, ChannelPromise promise)
                   throws Exception {
                 if (message instanceof HttpResponse) {
                   //                BuiltInServer.LOG.debug("OUT HTTP:\n" + message);
                   HttpResponse response = (HttpResponse) message;
                   BuiltInServer.LOG.debug(
                       "OUT HTTP: "
                           + response.getStatus().code()
                           + " "
                           + response.headers().get("Content-type"));
                 }
                 super.write(context, message, promise);
               }
             });
       }
     } else if (magic1 == 'C' && magic2 == 'H') {
       buffer.skipBytes(2);
       pipeline.addLast(new CustomHandlerDelegator());
     } else {
       BuiltInServer.LOG.warn("unknown request, first two bytes " + magic1 + " " + magic2);
       context.close();
     }
   }
   // must be after new channels handlers addition (netty bug?)
   ensureThatExceptionHandlerIsLast(pipeline);
   pipeline.remove(this);
   context.fireChannelRead(buffer);
 }
 @Override
 protected void channelRead0(ChannelHandlerContext context, ByteBuf message) throws Exception {
   ByteBuf buffer = getBufferIfSufficient(message, UUID_LENGTH, context);
   if (buffer == null) {
     message.release();
   } else {
     UUID uuid = new UUID(buffer.readLong(), buffer.readLong());
     for (BinaryRequestHandler customHandler : BinaryRequestHandler.EP_NAME.getExtensions()) {
       if (uuid.equals(customHandler.getId())) {
         ChannelPipeline pipeline = context.pipeline();
         pipeline.addLast(customHandler.getInboundHandler());
         ensureThatExceptionHandlerIsLast(pipeline);
         pipeline.remove(this);
         context.fireChannelRead(buffer);
         break;
       }
     }
   }
 }
Exemple #5
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  private void websocketHandshake(final ChannelHandlerContext ctx, HttpRequest req, MessageEvent e)
      throws Exception {

    // Create the WebSocket handshake response.
    HttpResponse res =
        new DefaultHttpResponse(
            HttpVersion.HTTP_1_1, new HttpResponseStatus(101, "Web Socket Protocol Handshake"));
    res.addHeader(HttpHeaders.Names.UPGRADE, HttpHeaders.Values.WEBSOCKET);
    res.addHeader(CONNECTION, HttpHeaders.Values.UPGRADE);

    // Fill in the headers and contents depending on handshake method.
    if (req.containsHeader(SEC_WEBSOCKET_KEY1) && req.containsHeader(SEC_WEBSOCKET_KEY2)) {
      // New handshake method with a challenge:
      res.addHeader(SEC_WEBSOCKET_ORIGIN, req.getHeader(ORIGIN));
      res.addHeader(
          SEC_WEBSOCKET_LOCATION, "ws://" + req.getHeader(HttpHeaders.Names.HOST) + req.getUri());
      String protocol = req.getHeader(SEC_WEBSOCKET_PROTOCOL);
      if (protocol != null) {
        res.addHeader(SEC_WEBSOCKET_PROTOCOL, protocol);
      }

      // Calculate the answer of the challenge.
      String key1 = req.getHeader(SEC_WEBSOCKET_KEY1);
      String key2 = req.getHeader(SEC_WEBSOCKET_KEY2);
      int a =
          (int)
              (Long.parseLong(key1.replaceAll("[^0-9]", ""))
                  / key1.replaceAll("[^ ]", "").length());
      int b =
          (int)
              (Long.parseLong(key2.replaceAll("[^0-9]", ""))
                  / key2.replaceAll("[^ ]", "").length());
      long c = req.getContent().readLong();
      ChannelBuffer input = ChannelBuffers.buffer(16);
      input.writeInt(a);
      input.writeInt(b);
      input.writeLong(c);
      try {
        ChannelBuffer output =
            ChannelBuffers.wrappedBuffer(MessageDigest.getInstance("MD5").digest(input.array()));
        res.setContent(output);
      } catch (NoSuchAlgorithmException ex) {
        throw new UnexpectedException(ex);
      }
    } else {
      // Old handshake method with no challenge:
      res.addHeader(WEBSOCKET_ORIGIN, req.getHeader(ORIGIN));
      res.addHeader(
          WEBSOCKET_LOCATION, "ws://" + req.getHeader(HttpHeaders.Names.HOST) + req.getUri());
      String protocol = req.getHeader(WEBSOCKET_PROTOCOL);
      if (protocol != null) {
        res.addHeader(WEBSOCKET_PROTOCOL, protocol);
      }
    }

    // Keep the original request
    Http.Request request = parseRequest(ctx, req);

    // Route the websocket request
    request.method = "WS";
    Map<String, String> route = Router.route(request.method, request.path);
    if (!route.containsKey("action")) {
      // No route found to handle this websocket connection
      ctx.getChannel()
          .write(new DefaultHttpResponse(HttpVersion.HTTP_1_1, HttpResponseStatus.NOT_FOUND));
      return;
    }

    // Upgrade the connection and send the handshake response.
    ChannelPipeline p = ctx.getChannel().getPipeline();
    p.remove("aggregator");
    p.replace("decoder", "wsdecoder", new WebSocketFrameDecoder());

    // Connect
    ctx.getChannel().write(res);

    p.replace("encoder", "wsencoder", new WebSocketFrameEncoder());
    req.setMethod(new HttpMethod("WEBSOCKET"));

    // Inbound
    Http.Inbound inbound =
        new Http.Inbound() {

          @Override
          public boolean isOpen() {
            return ctx.getChannel().isOpen();
          }
        };
    channels.put(ctx, inbound);

    // Outbound
    Http.Outbound outbound =
        new Http.Outbound() {

          final List<ChannelFuture> writeFutures =
              Collections.synchronizedList(new ArrayList<ChannelFuture>());
          Promise<Void> closeTask;

          synchronized void writeAndClose(ChannelFuture writeFuture) {
            if (!writeFuture.isDone()) {
              writeFutures.add(writeFuture);
              writeFuture.addListener(
                  new ChannelFutureListener() {

                    public void operationComplete(ChannelFuture cf) throws Exception {
                      writeFutures.remove(cf);
                      futureClose();
                    }
                  });
            }
          }

          void futureClose() {
            if (closeTask != null && writeFutures.isEmpty()) {
              closeTask.invoke(null);
            }
          }

          @Override
          public void send(String data) {
            if (!isOpen()) {
              throw new IllegalStateException("The outbound channel is closed");
            }
            writeAndClose(ctx.getChannel().write(new DefaultWebSocketFrame(data)));
          }

          @Override
          public void send(byte opcode, byte[] data, int offset, int length) {
            if (!isOpen()) {
              throw new IllegalStateException("The outbound channel is closed");
            }
            writeAndClose(
                ctx.getChannel()
                    .write(new DefaultWebSocketFrame(opcode, wrappedBuffer(data, offset, length))));
          }

          @Override
          public synchronized boolean isOpen() {
            return ctx.getChannel().isOpen() && closeTask == null;
          }

          @Override
          public synchronized void close() {
            closeTask = new Promise<Void>();
            closeTask.onRedeem(
                new Action<Promise<Void>>() {

                  public void invoke(Promise<Void> completed) {
                    writeFutures.clear();
                    ctx.getChannel().disconnect();
                    closeTask = null;
                  }
                });
            futureClose();
          }
        };

    Invoker.invoke(new WebSocketInvocation(route, request, inbound, outbound, ctx, e));
  }
Exemple #6
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  NetSocket createNetSocket() {
    DefaultNetSocket socket =
        new DefaultNetSocket(vertx, channel, context, server.tcpHelper, false);
    Map<Channel, DefaultNetSocket> connectionMap = new HashMap<Channel, DefaultNetSocket>(1);
    connectionMap.put(channel, socket);

    // Flush out all pending data
    endReadAndFlush();

    // remove old http handlers and replace the old handler with one that handle plain sockets
    ChannelPipeline pipeline = channel.pipeline();
    ChannelHandler compressor = pipeline.get(HttpChunkContentCompressor.class);
    if (compressor != null) {
      pipeline.remove(compressor);
    }

    pipeline.remove("httpDecoder");
    if (pipeline.get("chunkedWriter") != null) {
      pipeline.remove("chunkedWriter");
    }

    channel
        .pipeline()
        .replace(
            "handler",
            "handler",
            new VertxNetHandler(server.vertx, connectionMap) {
              @Override
              public void exceptionCaught(ChannelHandlerContext chctx, Throwable t)
                  throws Exception {
                // remove from the real mapping
                server.connectionMap.remove(channel);
                super.exceptionCaught(chctx, t);
              }

              @Override
              public void channelInactive(ChannelHandlerContext chctx) throws Exception {
                // remove from the real mapping
                server.connectionMap.remove(channel);
                super.channelInactive(chctx);
              }

              @Override
              public void channelRead(ChannelHandlerContext chctx, Object msg) throws Exception {
                if (msg instanceof HttpContent) {
                  ReferenceCountUtil.release(msg);
                  return;
                }
                super.channelRead(chctx, msg);
              }
            });

    // check if the encoder can be removed yet or not.
    if (lastWriteFuture == null) {
      channel.pipeline().remove("httpEncoder");
    } else {
      lastWriteFuture.addListener(
          new ChannelFutureListener() {
            @Override
            public void operationComplete(ChannelFuture future) throws Exception {
              channel.pipeline().remove("httpEncoder");
            }
          });
    }
    return socket;
  }
    @Override
    public final boolean trySend(HttpResponse message) {
      try {
        final HttpRequestWrapper nettyRequest = (HttpRequestWrapper) message.getRequest();
        final FullHttpRequest req = nettyRequest.req;
        final ChannelHandlerContext ctx = nettyRequest.ctx;

        final HttpResponseStatus status = HttpResponseStatus.valueOf(message.getStatus());

        if (message.getStatus() >= 400 && message.getStatus() < 600) {
          sendHttpResponse(
              ctx, req, new DefaultFullHttpResponse(req.getProtocolVersion(), status), false);
          close();
          return true;
        }

        if (message.getRedirectPath() != null) {
          sendHttpRedirect(ctx, req, message.getRedirectPath());
          close();
          return true;
        }

        FullHttpResponse res;
        if (message.getStringBody() != null)
          res =
              new DefaultFullHttpResponse(
                  req.getProtocolVersion(),
                  status,
                  Unpooled.wrappedBuffer(message.getStringBody().getBytes()));
        else if (message.getByteBufferBody() != null)
          res =
              new DefaultFullHttpResponse(
                  req.getProtocolVersion(),
                  status,
                  Unpooled.wrappedBuffer(message.getByteBufferBody()));
        else res = new DefaultFullHttpResponse(req.getProtocolVersion(), status);

        if (message.getCookies() != null) {
          final ServerCookieEncoder enc = ServerCookieEncoder.STRICT;
          for (final Cookie c : message.getCookies())
            HttpHeaders.setHeader(res, COOKIE, enc.encode(getNettyCookie(c)));
        }
        if (message.getHeaders() != null) {
          for (final Map.Entry<String, String> h : message.getHeaders().entries())
            HttpHeaders.setHeader(res, h.getKey(), h.getValue());
        }

        if (message.getContentType() != null) {
          String ct = message.getContentType();
          if (message.getCharacterEncoding() != null)
            ct = ct + "; charset=" + message.getCharacterEncoding().name();
          HttpHeaders.setHeader(res, CONTENT_TYPE, ct);
        }

        final boolean sseStarted = message.shouldStartActor();
        if (trackSession(sseStarted)) {
          final String sessionId = UUID.randomUUID().toString();
          res.headers()
              .add(SET_COOKIE, ServerCookieEncoder.STRICT.encode(SESSION_COOKIE_KEY, sessionId));
          startSession(sessionId, actorContext);
        }
        if (!sseStarted) {
          final String stringBody = message.getStringBody();
          long contentLength = 0L;
          if (stringBody != null) contentLength = stringBody.getBytes().length;
          else {
            final ByteBuffer byteBufferBody = message.getByteBufferBody();
            if (byteBufferBody != null) contentLength = byteBufferBody.remaining();
          }
          res.headers().add(CONTENT_LENGTH, contentLength);
        }

        final HttpStreamActorAdapter httpStreamActorAdapter;
        if (sseStarted)
          // This will copy the request content, which must still be referenceable, doing before the
          // request handler
          // unallocates it (unfortunately it is explicitly reference-counted in Netty)
          httpStreamActorAdapter = new HttpStreamActorAdapter(ctx, req);
        else httpStreamActorAdapter = null;

        sendHttpResponse(ctx, req, res, false);

        if (sseStarted) {
          if (httpResponseEncoderName != null) {
            ctx.pipeline().remove(httpResponseEncoderName);
          } else {
            final ChannelPipeline pl = ctx.pipeline();
            final List<String> handlerKeysToBeRemoved = new ArrayList<>();
            for (final Map.Entry<String, ChannelHandler> e : pl) {
              if (e.getValue() instanceof HttpResponseEncoder)
                handlerKeysToBeRemoved.add(e.getKey());
            }
            for (final String k : handlerKeysToBeRemoved) pl.remove(k);
          }

          try {
            message.getFrom().send(new HttpStreamOpened(httpStreamActorAdapter.ref(), message));
          } catch (SuspendExecution e) {
            throw new AssertionError(e);
          }
        }

        return true;
      } finally {
        if (actor != null) actor.unwatch();
      }
    }