blob: 7ac768dcc051dd75d3e4c28a328fd201c5b7237b [file] [log] [blame]
// Copyright (c) 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.
#include "quic/core/http/quic_header_list.h"
#include <limits>
#include <string>
#include "absl/strings/string_view.h"
#include "quic/core/qpack/qpack_header_table.h"
#include "quic/core/quic_packets.h"
#include "quic/platform/api/quic_flags.h"
namespace quic {
QuicHeaderList::QuicHeaderList()
: max_header_list_size_(std::numeric_limits<size_t>::max()),
current_header_list_size_(0),
uncompressed_header_bytes_(0),
compressed_header_bytes_(0) {}
QuicHeaderList::QuicHeaderList(QuicHeaderList&& other) = default;
QuicHeaderList::QuicHeaderList(const QuicHeaderList& other) = default;
QuicHeaderList& QuicHeaderList::operator=(const QuicHeaderList& other) =
default;
QuicHeaderList& QuicHeaderList::operator=(QuicHeaderList&& other) = default;
QuicHeaderList::~QuicHeaderList() {}
void QuicHeaderList::OnHeaderBlockStart() {
QUIC_BUG_IF(quic_bug_12518_1, current_header_list_size_ != 0)
<< "OnHeaderBlockStart called more than once!";
}
void QuicHeaderList::OnHeader(absl::string_view name, absl::string_view value) {
// Avoid infinite buffering of headers. No longer store headers
// once the current headers are over the limit.
if (current_header_list_size_ < max_header_list_size_) {
current_header_list_size_ += name.size();
current_header_list_size_ += value.size();
current_header_list_size_ += kQpackEntrySizeOverhead;
header_list_.emplace_back(std::string(name), std::string(value));
}
}
void QuicHeaderList::OnHeaderBlockEnd(size_t uncompressed_header_bytes,
size_t compressed_header_bytes) {
uncompressed_header_bytes_ = uncompressed_header_bytes;
compressed_header_bytes_ = compressed_header_bytes;
if (current_header_list_size_ > max_header_list_size_) {
Clear();
}
}
void QuicHeaderList::Clear() {
header_list_.clear();
current_header_list_size_ = 0;
uncompressed_header_bytes_ = 0;
compressed_header_bytes_ = 0;
}
std::string QuicHeaderList::DebugString() const {
std::string s = "{ ";
for (const auto& p : *this) {
s.append(p.first + "=" + p.second + ", ");
}
s.append("}");
return s;
}
} // namespace quic