chromium/net/third_party/quiche/src/quiche/quic/core/tls_chlo_extractor.h

// Copyright (c) 2020 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef QUICHE_QUIC_CORE_TLS_CHLO_EXTRACTOR_H_
#define QUICHE_QUIC_CORE_TLS_CHLO_EXTRACTOR_H_

#include <cstdint>
#include <memory>
#include <string>
#include <vector>

#include "absl/types/span.h"
#include "openssl/ssl.h"
#include "quiche/quic/core/frames/quic_ack_frequency_frame.h"
#include "quiche/quic/core/frames/quic_reset_stream_at_frame.h"
#include "quiche/quic/core/quic_framer.h"
#include "quiche/quic/core/quic_packets.h"
#include "quiche/quic/core/quic_stream_sequencer.h"
#include "quiche/quic/core/quic_types.h"
#include "quiche/quic/platform/api/quic_export.h"

namespace quic {

// Utility class that allows extracting information from a QUIC-TLS Client
// Hello. This class creates a QuicFramer to parse the packet, and implements
// QuicFramerVisitorInterface to access the frames parsed by the QuicFramer. It
// then uses a QuicStreamSequencer to reassemble the contents of the crypto
// stream, and implements QuicStreamSequencer::StreamInterface to access the
// reassembled data.
class QUICHE_EXPORT TlsChloExtractor
    : public QuicFramerVisitorInterface,
      public QuicStreamSequencer::StreamInterface { … };

// Convenience method to facilitate logging TlsChloExtractor::State.
QUICHE_EXPORT std::ostream& operator<<(std::ostream& os,
                                       const TlsChloExtractor::State& state);

}  // namespace quic

#endif  // QUICHE_QUIC_CORE_TLS_CHLO_EXTRACTOR_H_