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// Copyright 2013 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 "net/quic/quic_http_utils.h"
#include <utility>
#include "base/metrics/histogram_macros.h"
#include "net/spdy/spdy_log_util.h"
namespace net {
namespace {
enum AltSvcFormat { GOOGLE_FORMAT = 0, IETF_FORMAT = 1, ALTSVC_FORMAT_MAX };
void RecordAltSvcFormat(AltSvcFormat format) {
UMA_HISTOGRAM_ENUMERATION("Net.QuicAltSvcFormat", format, ALTSVC_FORMAT_MAX);
}
} // namespace
spdy::SpdyPriority ConvertRequestPriorityToQuicPriority(
const RequestPriority priority) {
DCHECK_GE(priority, MINIMUM_PRIORITY);
DCHECK_LE(priority, MAXIMUM_PRIORITY);
return static_cast<spdy::SpdyPriority>(HIGHEST - priority);
}
RequestPriority ConvertQuicPriorityToRequestPriority(
spdy::SpdyPriority priority) {
// Handle invalid values gracefully.
return (priority >= 5) ? IDLE
: static_cast<RequestPriority>(HIGHEST - priority);
}
base::Value QuicRequestNetLogParams(quic::QuicStreamId stream_id,
const spdy::Http2HeaderBlock* headers,
spdy::SpdyPriority priority,
NetLogCaptureMode capture_mode) {
base::Value dict = Http2HeaderBlockNetLogParams(headers, capture_mode);
DCHECK(dict.is_dict());
dict.SetIntKey("quic_priority", static_cast<int>(priority));
dict.SetIntKey("quic_stream_id", static_cast<int>(stream_id));
return dict;
}
base::Value QuicResponseNetLogParams(quic::QuicStreamId stream_id,
bool fin_received,
const spdy::Http2HeaderBlock* headers,
NetLogCaptureMode capture_mode) {
base::Value dict = Http2HeaderBlockNetLogParams(headers, capture_mode);
dict.SetIntKey("quic_stream_id", static_cast<int>(stream_id));
dict.SetBoolKey("fin", fin_received);
return dict;
}
quic::ParsedQuicVersionVector FilterSupportedAltSvcVersions(
const spdy::SpdyAltSvcWireFormat::AlternativeService& quic_alt_svc,
const quic::ParsedQuicVersionVector& supported_versions) {
quic::ParsedQuicVersionVector supported_alt_svc_versions;
DCHECK("quic" == quic_alt_svc.protocol_id || "hq" == quic_alt_svc.protocol_id)
<< quic_alt_svc.protocol_id;
for (uint32_t quic_version : quic_alt_svc.version) {
for (const quic::ParsedQuicVersion& supported : supported_versions) {
if (supported.UsesQuicCrypto() &&
supported.SupportsGoogleAltSvcFormat() &&
static_cast<uint32_t>(supported.transport_version) == quic_version) {
supported_alt_svc_versions.push_back(supported);
RecordAltSvcFormat(GOOGLE_FORMAT);
}
}
}
return supported_alt_svc_versions;
}
} // namespace net
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