Example #1
0
  private static void writeHttpResponse(
      ChannelHandlerContext ctx, FullHttpRequest req, FullHttpResponse res, Boolean close) {
    if (!omitDateHeader && !res.headers().contains(DefaultHttpHeaders.Names.DATE))
      DefaultHttpHeaders.addDateHeader(res, DefaultHttpHeaders.Names.DATE, new Date());

    // Send the response and close the connection if necessary.
    if (!HttpHeaders.isKeepAlive(req) || res.getStatus().code() != 200 || close == null || close) {
      res.headers().set(CONNECTION, HttpHeaders.Values.CLOSE);
      ctx.writeAndFlush(res).addListener(ChannelFutureListener.CLOSE);
    } else {
      res.headers().set(CONNECTION, HttpHeaders.Values.KEEP_ALIVE);
      write(ctx, res);
    }
  }
Example #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);
 }
Example #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();
      }
    }