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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 "base/containers/fixed_flat_set.h"
#include "base/metrics/histogram_functions.h"
#include "chrome/browser/browser_process.h"
#include "chrome/browser/privacy_sandbox/privacy_sandbox_countries.h"
#include "components/privacy_sandbox/privacy_sandbox_features.h"
#include "components/variations/service/variations_service.h"
namespace {
/**
* Retrieves the latest country code from the variations service.
*
* Returns an empty string if the variations service is not available.
*/
std::string GetLatestCountry(
variations::VariationsService* variations_service) {
if (!variations_service) {
return "";
}
return variations_service->GetLatestCountry();
}
/**
* Retrieves the stored permanent country code from the variations service.
*
* Returns an empty string if the variations service is not available.
*/
std::string GetStoredPermanentCountry(
variations::VariationsService* variations_service) {
if (!variations_service) {
return "";
}
return variations_service->GetStoredPermanentCountry();
}
constexpr auto kPrivacySandboxConsentCountries =
base::MakeFixedFlatSet<std::string_view>({
"gb", "at", "ax", "be", "bg", "bl", "ch", "cy", "cz", "de", "dk",
"ee", "es", "fi", "fr", "gf", "gg", "gi", "gp", "gr", "hr", "hu",
"ie", "is", "it", "je", "ke", "li", "lt", "lu", "lv", "mf", "mt",
"mq", "nc", "nl", "no", "pf", "pl", "pm", "pt", "qa", "re", "ro",
"se", "si", "sk", "sj", "tf", "va", "wf", "yt",
});
class PrivacySandboxCountriesImpl : public PrivacySandboxCountries {
public:
bool IsConsentCountry() override {
CHECK(g_browser_process);
return kPrivacySandboxConsentCountries.contains(
GetStoredPermanentCountry(g_browser_process->variations_service()));
}
bool IsRestOfWorldCountry() override {
CHECK(g_browser_process);
base::UmaHistogramBoolean(
"PrivacySandbox.NoticeRequirement.IsVariationServiceReady",
g_browser_process->variations_service() != nullptr);
std::string country =
GetStoredPermanentCountry(g_browser_process->variations_service());
base::UmaHistogramBoolean(
"PrivacySandbox.NoticeRequirement.IsVariationCountryEmpty",
country.empty());
return !country.empty() &&
!kPrivacySandboxConsentCountries.contains(country);
}
bool IsLatestCountryChina() override {
CHECK(g_browser_process);
return GetLatestCountry(g_browser_process->variations_service()) == "cn";
}
};
} // namespace
raw_ptr<PrivacySandboxCountries> GetSingletonPrivacySandboxCountries() {
static PrivacySandboxCountriesImpl instance;
return &instance;
}
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