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// Copyright (c) 2019 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_QPACK_VALUE_SPLITTING_HEADER_LIST_H_
#define QUICHE_QUIC_CORE_QPACK_VALUE_SPLITTING_HEADER_LIST_H_
#include "net/third_party/quiche/src/quic/platform/api/quic_export.h"
#include "net/third_party/quiche/src/quic/platform/api/quic_string_piece.h"
#include "net/third_party/quiche/src/spdy/core/spdy_header_block.h"
namespace quic {
// A wrapper class around SpdyHeaderBlock that splits header values along ';'
// separators (while also removing optional space following separator) for
// cookies and along '\0' separators for other header fields.
class QUIC_EXPORT_PRIVATE ValueSplittingHeaderList {
public:
using value_type = spdy::SpdyHeaderBlock::value_type;
class QUIC_EXPORT_PRIVATE const_iterator {
public:
// |header_list| must outlive this object.
const_iterator(const spdy::SpdyHeaderBlock* header_list,
spdy::SpdyHeaderBlock::const_iterator header_list_iterator);
const_iterator(const const_iterator&) = default;
const_iterator& operator=(const const_iterator&) = delete;
bool operator==(const const_iterator& other) const;
bool operator!=(const const_iterator& other) const;
const const_iterator& operator++();
const value_type& operator*() const;
const value_type* operator->() const;
private:
// Find next separator; update |value_end_| and |header_field_|.
void UpdateHeaderField();
const spdy::SpdyHeaderBlock* const header_list_;
spdy::SpdyHeaderBlock::const_iterator header_list_iterator_;
QuicStringPiece::size_type value_start_;
QuicStringPiece::size_type value_end_;
value_type header_field_;
};
// |header_list| must outlive this object.
explicit ValueSplittingHeaderList(const spdy::SpdyHeaderBlock* header_list);
ValueSplittingHeaderList(const ValueSplittingHeaderList&) = delete;
ValueSplittingHeaderList& operator=(const ValueSplittingHeaderList&) = delete;
const_iterator begin() const;
const_iterator end() const;
private:
const spdy::SpdyHeaderBlock* const header_list_;
};
} // namespace quic
#endif // QUICHE_QUIC_CORE_QPACK_VALUE_SPLITTING_HEADER_LIST_H_
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