Exemplo n.º 1
0
 private void handleDeath(Throwable cause) {
   if (cause != null)
     sendHttpResponse(
         ctx,
         req,
         new DefaultFullHttpResponse(
             req.getProtocolVersion(),
             INTERNAL_SERVER_ERROR,
             Unpooled.wrappedBuffer(
                 ("Actor is dead because of " + cause.getMessage()).getBytes())),
         false);
   else
     sendHttpResponse(
         ctx,
         req,
         new DefaultFullHttpResponse(
             req.getProtocolVersion(),
             INTERNAL_SERVER_ERROR,
             Unpooled.wrappedBuffer(("Actor has terminated.").getBytes())),
         false);
 }
Exemplo n.º 2
0
 private static void sendHttpRedirect(
     ChannelHandlerContext ctx, FullHttpRequest req, String newUri) {
   final FullHttpResponse res = new DefaultFullHttpResponse(req.getProtocolVersion(), FOUND);
   HttpHeaders.setHeader(res, LOCATION, newUri);
   writeHttpResponse(ctx, req, res, true);
 }
Exemplo n.º 3
0
    @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();
      }
    }
Exemplo n.º 4
0
  private void handleHttpRequest(ChannelHandlerContext ctx, FullHttpRequest req)
      throws SuspendExecution {
    // Handle a bad request.
    if (!req.getDecoderResult().isSuccess()) {
      sendHttpResponse(
          ctx, req, new DefaultFullHttpResponse(req.getProtocolVersion(), BAD_REQUEST), false);
      return;
    }

    final String uri = req.getUri();

    final Context actorCtx = selector.get(ctx, req);
    assert actorCtx != null;

    final ReentrantLock lock = actorCtx.getLock();
    assert lock != null;

    lock.lock();

    try {
      final ActorRef<? extends WebMessage> userActorRef = actorCtx.getRef();
      ActorImpl internalActor = (ActorImpl) actorCtx.getAttachments().get(ACTOR_KEY);

      if (userActorRef != null) {
        if (actorCtx.handlesWithWebSocket(uri)) {
          if (internalActor == null || !(internalActor instanceof WebSocketActorAdapter)) {
            //noinspection unchecked
            webSocketActor =
                new WebSocketActorAdapter(ctx, (ActorRef<? super WebMessage>) userActorRef);
            addActorToContextAndUnlock(actorCtx, webSocketActor, lock);
          }
          // Handshake
          final WebSocketServerHandshakerFactory wsFactory =
              new WebSocketServerHandshakerFactory(uri, null, true);
          handshaker = wsFactory.newHandshaker(req);
          if (handshaker == null) {
            WebSocketServerHandshakerFactory.sendUnsupportedVersionResponse(ctx.channel());
          } else {
            @SuppressWarnings("unchecked")
            final ActorRef<WebMessage> userActorRef0 =
                (ActorRef<WebMessage>) webSocketActor.userActor;
            handshaker
                .handshake(ctx.channel(), req)
                .addListener(
                    new GenericFutureListener<ChannelFuture>() {
                      @Override
                      public void operationComplete(ChannelFuture future) throws Exception {
                        FiberUtil.runInFiber(
                            new SuspendableRunnable() {
                              @Override
                              public void run() throws SuspendExecution, InterruptedException {
                                userActorRef0.send(
                                    new WebSocketOpened(WebActorHandler.this.webSocketActor.ref()));
                              }
                            });
                      }
                    });
          }
          return;
        } else if (actorCtx.handlesWithHttp(uri)) {
          if (internalActor == null || !(internalActor instanceof HttpActorAdapter)) {
            //noinspection unchecked
            internalActor =
                new HttpActorAdapter(
                    (ActorRef<HttpRequest>) userActorRef, actorCtx, httpResponseEncoderName);
            addActorToContextAndUnlock(actorCtx, internalActor, lock);
          }
          //noinspection unchecked
          ((HttpActorAdapter) internalActor).service(ctx, req);
          return;
        }
      }
    } finally {
      if (lock.isHeldByCurrentStrand() && lock.isLocked()) lock.unlock();
    }

    sendHttpResponse(
        ctx, req, new DefaultFullHttpResponse(req.getProtocolVersion(), NOT_FOUND), false);
  }