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// Copyright 2022 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "components/variations/service/variations_service_utils.h"
#include <string>
#include "base/build_time.h"
#include "base/time/time.h"
#include "components/country_codes/country_codes.h"
#include "components/variations/service/variations_service.h"
namespace variations {
namespace {
// Maximum age permitted for a variations seed, in days.
const int kMaxSeedAgeDays = 30;
// Helper function for "HasSeedExpiredSinceTime" that exposes |build_time| and
// makes it overridable by tests.
bool HasSeedExpiredSinceTimeHelper(base::Time fetch_time,
base::Time build_time) {
// TODO(crbug.com/40274989): Consider comparing the server-provided fetch time
// with the network time.
const base::TimeDelta seed_age = base::Time::Now() - fetch_time;
// base::TimeDelta::InDays() rounds down to the nearest integer, so the seed
// would not be considered expired if it is less than `kMaxSeedAgeDays + 1`.
return seed_age.InDays() > kMaxSeedAgeDays && build_time > fetch_time;
}
} // namespace
bool HasSeedExpiredSinceTime(base::Time fetch_time) {
return HasSeedExpiredSinceTimeHelper(fetch_time, base::GetBuildTime());
}
bool HasSeedExpiredSinceTimeHelperForTesting(base::Time fetch_time,
base::Time build_time) {
return HasSeedExpiredSinceTimeHelper(fetch_time, build_time);
}
std::string GetCurrentCountryCode(const VariationsService* variations) {
std::string country;
if (variations) {
country = variations->GetStoredPermanentCountry();
}
// Since variations doesn't provide a permanent country by default on things
// like local builds, we try to fall back to the country_codes component which
// should always have one.
return country.empty()
? std::string(country_codes::GetCurrentCountryID().CountryCode())
: country;
}
} // namespace variations
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