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// Copyright 2023 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef NET_HTTP_HTTP_CONNECTION_INFO_H_
#define NET_HTTP_HTTP_CONNECTION_INFO_H_
#include <string_view>
#include "net/base/net_export.h"
namespace net {
// Describes the kind of connection used to fetch this response.
//
// NOTE: Please keep in sync with ConnectionInfo enum in
// tools/metrics/histograms/metadata/net/enums.xml.
// Because of that, and also because these values are persisted to
// the cache, please make sure not to delete or reorder values.
enum class HttpConnectionInfo {
kUNKNOWN = 0,
kHTTP1_1 = 1,
kDEPRECATED_SPDY2 = 2,
kDEPRECATED_SPDY3 = 3,
kHTTP2 = 4, // HTTP/2.
kQUIC_UNKNOWN_VERSION = 5,
kDEPRECATED_HTTP2_14 = 6, // HTTP/2 draft-14.
kDEPRECATED_HTTP2_15 = 7, // HTTP/2 draft-15.
kHTTP0_9 = 8,
kHTTP1_0 = 9,
kQUIC_32 = 10,
kQUIC_33 = 11,
kQUIC_34 = 12,
kQUIC_35 = 13,
kQUIC_36 = 14,
kQUIC_37 = 15,
kQUIC_38 = 16,
kQUIC_39 = 17,
kQUIC_40 = 18,
kQUIC_41 = 19,
kQUIC_42 = 20,
kQUIC_43 = 21,
kQUIC_Q099 = 22,
kQUIC_44 = 23,
kQUIC_45 = 24,
kQUIC_46 = 25,
kQUIC_47 = 26,
kQUIC_999 = 27,
kQUIC_Q048 = 28,
kQUIC_Q049 = 29,
kQUIC_Q050 = 30,
kQUIC_T048 = 31,
kQUIC_T049 = 32,
kQUIC_T050 = 33,
kQUIC_T099 = 34,
kQUIC_DRAFT_25 = 35,
kQUIC_DRAFT_27 = 36,
kQUIC_DRAFT_28 = 37,
kQUIC_DRAFT_29 = 38,
kQUIC_T051 = 39,
kQUIC_RFC_V1 = 40,
kDEPRECATED_QUIC_2_DRAFT_1 = 41,
kQUIC_2_DRAFT_8 = 42,
kMaxValue = kQUIC_2_DRAFT_8,
};
enum class HttpConnectionInfoCoarse {
kHTTP1, // HTTP/0.9, 1.0 and 1.1
kHTTP2,
kQUIC,
kOTHER,
};
NET_EXPORT std::string_view HttpConnectionInfoToString(
HttpConnectionInfo connection_info);
NET_EXPORT std::string_view HttpConnectionInfoCoarseToString(
HttpConnectionInfoCoarse http_connection_info_coarse);
// Returns a more coarse-grained description of the protocol used to fetch the
// response.
NET_EXPORT HttpConnectionInfoCoarse
HttpConnectionInfoToCoarse(HttpConnectionInfo info);
} // namespace net
#endif // NET_HTTP_HTTP_CONNECTION_INFO_H_
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