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// Copyright 2016 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/ash/net/network_throttling_observer.h"
#include <algorithm>
#include <string>
#include "base/functional/bind.h"
#include "base/system/sys_info.h"
#include "base/values.h"
#include "chrome/common/pref_names.h"
#include "chromeos/ash/components/network/network_state_handler.h"
#include "components/prefs/pref_member.h"
#include "components/prefs/pref_registry_simple.h"
#include "components/prefs/pref_service.h"
namespace ash {
NetworkThrottlingObserver::NetworkThrottlingObserver(PrefService* local_state)
: local_state_(local_state) {
pref_change_registrar_.Init(local_state_);
auto throttle_callback = base::BindRepeating(
&NetworkThrottlingObserver::OnPreferenceChanged, base::Unretained(this));
pref_change_registrar_.Add(prefs::kNetworkThrottlingEnabled,
throttle_callback);
}
NetworkThrottlingObserver::~NetworkThrottlingObserver() = default;
void NetworkThrottlingObserver::RegisterPrefs(PrefRegistrySimple* registry) {
registry->RegisterDictionaryPref(prefs::kNetworkThrottlingEnabled);
}
void NetworkThrottlingObserver::OnPreferenceChanged(
const std::string& pref_name) {
DCHECK(pref_name == prefs::kNetworkThrottlingEnabled);
const base::Value::Dict& throttling_policy =
local_state_->GetDict(prefs::kNetworkThrottlingEnabled);
// Default is to disable throttling if the policy is not found.
const bool enabled = throttling_policy.FindBool("enabled").value_or(false);
const uint32_t upload_rate =
std::max(0, throttling_policy.FindInt("upload_rate_kbits").value_or(0));
const uint32_t download_rate =
std::max(0, throttling_policy.FindInt("download_rate_kbits").value_or(0));
NetworkHandler::Get()->network_state_handler()->SetNetworkThrottlingStatus(
enabled, upload_rate, download_rate);
}
} // namespace ash
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