hpack_string_decoder.h | Explore in Territory

// Copyright 2016 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_HTTP2_HPACK_DECODER_HPACK_STRING_DECODER_H_
#define QUICHE_HTTP2_HPACK_DECODER_HPACK_STRING_DECODER_H_

// HpackStringDecoder decodes strings encoded per the HPACK spec; this does
// not mean decompressing Huffman encoded strings, just identifying the length,
// encoding and contents for a listener.

#include <stddef.h>

#include <algorithm>
#include <cstdint>
#include <string>

#include "absl/base/macros.h"
#include "quiche/http2/decoder/decode_buffer.h"
#include "quiche/http2/decoder/decode_status.h"
#include "quiche/http2/hpack/varint/hpack_varint_decoder.h"
#include "quiche/common/platform/api/quiche_export.h"
#include "quiche/common/platform/api/quiche_logging.h"

namespace http2 {

// Decodes a single string in an HPACK header entry. The high order bit of
// the first byte of the length is the H (Huffman) bit indicating whether
// the value is Huffman encoded, and the remainder of the byte is the first
// 7 bits of an HPACK varint.
//
// Call Start() to begin decoding; if it returns kDecodeInProgress, then call
// Resume() when more input is available, repeating until kDecodeInProgress is
// not returned. If kDecodeDone or kDecodeError is returned, then Resume() must
// not be called until Start() has been called to start decoding a new string.
class QUICHE_EXPORT HpackStringDecoder { … };

QUICHE_EXPORT std::ostream& operator<<(std::ostream& out,
                                       const HpackStringDecoder& v);

}  // namespace http2
#endif  // QUICHE_HTTP2_HPACK_DECODER_HPACK_STRING_DECODER_H_
chromium/net/third_party/quiche/src/quiche/http2/hpack/decoder/hpack_string_decoder.h
