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// Copyright 2024 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/policy/annotations/blocklist_handler.h"
#include <string>
#include "base/metrics/histogram_macros.h"
#include "base/time/time.h"
#include "base/values.h"
#include "chrome/browser/browser_features.h"
#include "chrome/browser/policy/annotations/annotation_control.h"
#include "chrome/common/pref_names.h"
#include "components/policy/policy_constants.h"
namespace policy {
NetworkAnnotationBlocklistHandler::NetworkAnnotationBlocklistHandler() =
default;
NetworkAnnotationBlocklistHandler::~NetworkAnnotationBlocklistHandler() =
default;
// Only check policies if `kNetworkAnnotationMonitoring` is enabled.
// ApplyPolicySettings(...) is only called when this function returns true.
bool NetworkAnnotationBlocklistHandler::CheckPolicySettings(
const policy::PolicyMap& policies,
policy::PolicyErrorMap* errors) {
if (base::FeatureList::IsEnabled(features::kNetworkAnnotationMonitoring)) {
return true;
}
return false;
}
// Check policy values to determine which network annotations should be
// disabled.
void NetworkAnnotationBlocklistHandler::ApplyPolicySettings(
const PolicyMap& policies,
PrefValueMap* prefs) {
const base::TimeTicks start_time = base::TimeTicks::Now();
base::Value::Dict blocklist_prefs = base::Value::Dict();
for (auto const& [hash_code, control] :
annotation_control_provider_.GetControls()) {
if (control.IsBlockedByPolicies(policies)) {
blocklist_prefs.Set(hash_code, true);
}
}
prefs->SetValue(prefs::kNetworkAnnotationBlocklist,
base::Value(std::move(blocklist_prefs)));
// Publish time metric for this handler.
UMA_HISTOGRAM_TIMES("ChromeOS.Regmon.PolicyHandlerTime",
base::TimeTicks::Now() - start_time);
}
void NetworkAnnotationBlocklistHandler::RegisterPrefs(
PrefRegistrySimple* registry) {
registry->RegisterDictionaryPref(prefs::kNetworkAnnotationBlocklist);
}
} // namespace policy
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