mirror of
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84 lines
3.0 KiB
C++
84 lines
3.0 KiB
C++
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// Copyright 2013 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "net/quic/quic_http_utils.h"
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#include <utility>
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#include "base/metrics/histogram_macros.h"
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#include "net/spdy/spdy_log_util.h"
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#include "net/third_party/quic/platform/api/quic_endian.h"
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namespace net {
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namespace {
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enum AltSvcFormat { GOOGLE_FORMAT = 0, IETF_FORMAT = 1, ALTSVC_FORMAT_MAX };
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void RecordAltSvcFormat(AltSvcFormat format) {
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UMA_HISTOGRAM_ENUMERATION("Net.QuicAltSvcFormat", format, ALTSVC_FORMAT_MAX);
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}
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}; // namespace
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spdy::SpdyPriority ConvertRequestPriorityToQuicPriority(
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const RequestPriority priority) {
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DCHECK_GE(priority, MINIMUM_PRIORITY);
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DCHECK_LE(priority, MAXIMUM_PRIORITY);
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return static_cast<spdy::SpdyPriority>(HIGHEST - priority);
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}
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RequestPriority ConvertQuicPriorityToRequestPriority(
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spdy::SpdyPriority priority) {
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// Handle invalid values gracefully.
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return (priority >= 5) ? IDLE
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: static_cast<RequestPriority>(HIGHEST - priority);
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}
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std::unique_ptr<base::Value> QuicRequestNetLogCallback(
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quic::QuicStreamId stream_id,
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const spdy::SpdyHeaderBlock* headers,
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spdy::SpdyPriority priority,
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NetLogCaptureMode capture_mode) {
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std::unique_ptr<base::DictionaryValue> dict(
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static_cast<base::DictionaryValue*>(
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SpdyHeaderBlockNetLogCallback(headers, capture_mode).release()));
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dict->SetInteger("quic_priority", static_cast<int>(priority));
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dict->SetInteger("quic_stream_id", static_cast<int>(stream_id));
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return std::move(dict);
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}
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quic::QuicTransportVersionVector FilterSupportedAltSvcVersions(
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const spdy::SpdyAltSvcWireFormat::AlternativeService& quic_alt_svc,
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const quic::QuicTransportVersionVector& supported_versions,
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bool support_ietf_format_quic_altsvc) {
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quic::QuicTransportVersionVector supported_alt_svc_versions;
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if (support_ietf_format_quic_altsvc && quic_alt_svc.protocol_id == "hq") {
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// Using IETF format for advertising QUIC. In this case,
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// |alternative_service_entry.version| will store QUIC version labels.
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for (uint32_t quic_version_label : quic_alt_svc.version) {
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for (quic::QuicTransportVersion supported : supported_versions) {
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quic::QuicVersionLabel supported_version_label_network_order =
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QuicVersionToQuicVersionLabel(supported);
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if (supported_version_label_network_order == quic_version_label) {
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supported_alt_svc_versions.push_back(supported);
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RecordAltSvcFormat(IETF_FORMAT);
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}
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}
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}
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} else if (quic_alt_svc.protocol_id == "quic") {
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for (uint32_t quic_version : quic_alt_svc.version) {
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for (quic::QuicTransportVersion supported : supported_versions) {
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if (static_cast<uint32_t>(supported) == quic_version) {
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supported_alt_svc_versions.push_back(supported);
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RecordAltSvcFormat(GOOGLE_FORMAT);
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}
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}
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}
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}
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return supported_alt_svc_versions;
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}
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} // namespace net
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