Examples with Http2Frame com.webpieces.http2.api.dto.lowlevel.lib.Http2Frame used on opensource projects

Example 21 with Http2Frame

use of com.webpieces.http2.api.dto.lowlevel.lib.Http2Frame in project webpieces by deanhiller.

the class HeaderEncoding method createHeaderFrames.

private List<Http2Frame> createHeaderFrames(HasHeaderFragment initialFrame, List<Http2Header> headers, Encoder encoder, long maxFrameSize) {
    int maxSize = (int) maxFrameSize;
    if (maxFrameSize > Integer.MAX_VALUE)
        throw new IllegalStateException("max frame size too large for this hpack library");
    List<Http2Frame> headerFrames = new LinkedList<>();
    DataWrapper serializedHeaders = serializeHeaders(encoder, headers);
    HasHeaderFragment currentFrame = initialFrame;
    HasHeaderFragment lastFrame = currentFrame;
    DataWrapper dataLeftOver = serializedHeaders;
    while (dataLeftOver.getReadableSize() > 0) {
        lastFrame = currentFrame;
        int splitSize = Math.min(dataLeftOver.getReadableSize(), maxSize);
        List<? extends DataWrapper> split = dataGen.split(dataLeftOver, splitSize);
        DataWrapper fragment = split.get(0);
        currentFrame.setHeaderFragment(fragment);
        headerFrames.add(currentFrame);
        currentFrame = new ContinuationFrame();
        currentFrame.setStreamId(initialFrame.getStreamId());
        dataLeftOver = split.get(1);
    }
    // last frame is currentFrame so set end header
    lastFrame.setEndHeaders(true);
    return headerFrames;
}

Example 22 with Http2Frame

use of com.webpieces.http2.api.dto.lowlevel.lib.Http2Frame in project webpieces by deanhiller.

the class DataMarshaller method marshal.

@Override
public DataWrapper marshal(Http2Frame frame) {
    DataFrame castFrame = (DataFrame) frame;
    int paddingSize = castFrame.getPadding().getReadableSize();
    if (frame.getStreamId() == 0)
        throw new ConnectionException(CancelReasonCode.INVALID_STREAM_ID, frame.getStreamId(), "data frame had invalid stream id=" + frame.getStreamId());
    byte value = (byte) 0x0;
    if (castFrame.isEndOfStream())
        value |= 0x1;
    if (paddingSize > 0)
        value |= 0x8;
    DataWrapper dataPayload = PaddingUtil.padDataIfNeeded(castFrame.getData(), castFrame.getPadding());
    return super.marshalFrame(frame, value, dataPayload);
}

Example 23 with Http2Frame

use of com.webpieces.http2.api.dto.lowlevel.lib.Http2Frame in project webpieces by deanhiller.

the class TestS4FrameSizeAndHeaders method testSection4_3InterleavedFrames.

/**
 * Each header block is processed as a discrete unit. Header blocks
 * MUST be transmitted as a contiguous sequence of frames, with no interleaved
 * frames of any other type or from any other stream. The last frame in a
 * sequence of HEADERS or CONTINUATION frames has the END_HEADERS flag set. The
 * last frame in a sequence of PUSH_PROMISE or CONTINUATION frames has the
 * END_HEADERS flag set. This allows a header block to be logically equivalent to a single frame.
 *
 * Header block fragments can only be sent as the payload of HEADERS, PUSH_PROMISE, or
 * CONTINUATION frames because these frames carry data that can modify the
 * compression context maintained by a receiver. An endpoint receiving
 * HEADERS, PUSH_PROMISE, or CONTINUATION frames needs to reassemble header
 * blocks and perform decompression even if the frames are to be discarded. A receiver
 * MUST terminate the connection with a connection error (Section 5.4.1) of
 * type COMPRESSION_ERROR if it does not decompress a header block.
 */
@Test
public void testSection4_3InterleavedFrames() {
    List<Http2Frame> frames = createInterleavedFrames();
    // for this test, need interleaved
    Assert.assertTrue(frames.size() >= 3);
    mockChannel.sendFrame(frames.get(0));
    mockChannel.sendFrame(frames.get(1));
    // no request comes in
    Assert.assertEquals(0, mockListener.getNumRequestsThatCameIn());
    Assert.assertTrue(mockListener.isClosed());
    // remote receives goAway
    GoAwayFrame goAway = (GoAwayFrame) mockChannel.getFrameAndClear();
    Assert.assertEquals(Http2ErrorCode.PROTOCOL_ERROR, goAway.getKnownErrorCode());
    DataWrapper debugData = goAway.getDebugData();
    String msg = debugData.createStringFromUtf8(0, debugData.getReadableSize());
    Assert.assertTrue(msg.contains("Headers/continuations from two different streams per spec cannot be interleaved. "));
    Assert.assertTrue(mockChannel.isClosed());
}