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// Copyright 2018 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/predictors/proxy_lookup_client_impl.h"
#include <utility>
#include "base/check_is_test.h"
#include "base/functional/bind.h"
#include "base/metrics/histogram_macros.h"
#include "base/task/common/task_annotator.h"
#include "content/public/browser/browser_task_traits.h"
#include "content/public/browser/browser_thread.h"
#include "net/proxy_resolution/proxy_info.h"
#include "services/network/public/mojom/network_context.mojom.h"
#include "url/gurl.h"
namespace predictors {
ProxyLookupClientImpl::ProxyLookupClientImpl(
const GURL& url,
const net::NetworkAnonymizationKey& network_anonymization_key,
ProxyLookupCallback callback,
network::mojom::NetworkContext* network_context)
: callback_(std::move(callback)) {
DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
proxy_lookup_start_time_ = base::TimeTicks::Now();
network_context->LookUpProxyForURL(url, network_anonymization_key,
receiver_.BindNewPipeAndPassRemote());
receiver_.set_disconnect_handler(
base::BindOnce(&ProxyLookupClientImpl::OnProxyLookupComplete,
base::Unretained(this), net::ERR_ABORTED, std::nullopt));
}
ProxyLookupClientImpl::~ProxyLookupClientImpl() = default;
void ProxyLookupClientImpl::OnProxyLookupComplete(
int32_t net_error,
const std::optional<net::ProxyInfo>& proxy_info) {
UMA_HISTOGRAM_TIMES("Navigation.Preconnect.ProxyLookupLatency",
base::TimeTicks::Now() - proxy_lookup_start_time_);
// As this method is executed as a callback from a Mojo call, it should be
// executed via RunTask() and thus have a non-delayed PendingTask associated
// with it.
auto* task = base::TaskAnnotator::CurrentTaskForThread();
if (!task) {
// The `task` can be null in base::ScopedMockTimeMessageLoopTaskRunner scope
// in test.
CHECK_IS_TEST();
}
DCHECK(!task || task->delayed_run_time.is_null());
// The task will have a null |queue_time| if run synchronously (this happens
// in unit tests, for example).
base::TimeTicks queue_time = (task && !task->queue_time.is_null())
? task->queue_time
: base::TimeTicks::Now();
UMA_HISTOGRAM_TIMES("Navigation.Preconnect.ProxyLookupCallbackQueueingTime",
base::TimeTicks::Now() - queue_time);
bool success = proxy_info.has_value() && !proxy_info->is_direct();
std::move(callback_).Run(success);
}
} // namespace predictors
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