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// Copyright 2019 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/assistant/assistant_util.h"
#include <string>
#include "ash/constants/devicetype.h"
#include "base/containers/contains.h"
#include "base/strings/string_util.h"
#include "chrome/browser/ash/profiles/profile_helper.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/browser/signin/identity_manager_factory.h"
#include "chromeos/ash/components/demo_mode/utils/demo_session_utils.h"
#include "chromeos/ash/services/assistant/public/cpp/assistant_enums.h"
#include "chromeos/ash/services/assistant/public/cpp/assistant_prefs.h"
#include "chromeos/ash/services/assistant/public/cpp/features.h"
#include "components/language/core/browser/pref_names.h"
#include "components/prefs/pref_service.h"
#include "components/signin/public/identity_manager/identity_manager.h"
#include "components/user_manager/user_manager.h"
#include "google_apis/gaia/gaia_auth_util.h"
#include "third_party/icu/source/common/unicode/locid.h"
namespace {
using ::ash::assistant::AssistantAllowedState;
bool g_override_is_google_device = false;
bool HasPrimaryAccount(const Profile* profile) {
auto* identity_manager =
IdentityManagerFactory::GetForProfileIfExists(profile);
if (!identity_manager)
return false;
return identity_manager->HasPrimaryAccount(signin::ConsentLevel::kSignin);
}
bool IsGoogleDevice() {
return g_override_is_google_device || ash::IsGoogleBrandedDevice();
}
const user_manager::User* GetUser(const Profile* profile) {
return ash::ProfileHelper::Get()->GetUserByProfile(profile);
}
bool IsAssistantAllowedForUserType(const Profile* profile) {
return GetUser(profile)->HasGaiaAccount();
}
// Get the actual reason why the user type is not allowed.
AssistantAllowedState GetErrorForUserType(const Profile* profile) {
DCHECK(!IsAssistantAllowedForUserType(profile));
switch (GetUser(profile)->GetType()) {
case user_manager::UserType::kPublicAccount:
return AssistantAllowedState::DISALLOWED_BY_PUBLIC_SESSION;
case user_manager::UserType::kKioskChromeApp:
case user_manager::UserType::kKioskWebApp:
case user_manager::UserType::kKioskIWA:
return AssistantAllowedState::DISALLOWED_BY_KIOSK_MODE;
case user_manager::UserType::kGuest:
return AssistantAllowedState::DISALLOWED_BY_ACCOUNT_TYPE;
case user_manager::UserType::kRegular:
case user_manager::UserType::kChild:
// This method should only be called for disallowed user types.
NOTREACHED();
}
}
bool IsAssistantAllowedForLocale(const Profile* profile) {
// String literals used in some cases in the array because their
// constant equivalents don't exist in:
// third_party/icu/source/common/unicode/uloc.h
const std::string kAllowedLocales[] = {ULOC_CANADA, ULOC_CANADA_FRENCH,
ULOC_FRANCE, ULOC_FRENCH,
ULOC_GERMANY, ULOC_ITALY,
ULOC_JAPAN, ULOC_JAPANESE,
ULOC_UK, ULOC_US,
"da", "en_AU",
"en_IN", "en_NZ",
"es_CO", "es_ES",
"es_MX", "fr_BE",
"it", "nb",
"nl", "nn",
"no", "sv"};
const PrefService* prefs = profile->GetPrefs();
std::string pref_locale =
prefs->GetString(language::prefs::kApplicationLocale);
// Also accept runtime locale which maybe an approximation of user's pref
// locale.
const std::string kRuntimeLocale = icu::Locale::getDefault().getName();
base::ReplaceChars(pref_locale, "-", "_", &pref_locale);
bool allowed = base::Contains(kAllowedLocales, pref_locale) ||
base::Contains(kAllowedLocales, kRuntimeLocale);
return allowed;
}
bool IsAssistantDisabledByPolicy(const Profile* profile) {
return profile->GetPrefs()->GetBoolean(
ash::assistant::prefs::kAssistantDisabledByPolicy);
}
bool IsEmailDomainSupported(const Profile* profile) {
const std::string email = GetUser(profile)->GetAccountId().GetUserEmail();
DCHECK(!email.empty());
return (gaia::ExtractDomainName(email) == "gmail.com" ||
gaia::ExtractDomainName(email) == "googlemail.com" ||
gaia::IsGoogleInternalAccountEmail(email));
}
bool HasDedicatedAssistantKey() {
return IsGoogleDevice();
}
} // namespace
namespace assistant {
AssistantAllowedState IsAssistantAllowedForProfile(const Profile* profile) {
if (ash::assistant::features::IsNewEntryPointEnabled()) {
return AssistantAllowedState::DISALLOWED_BY_NEW_ENTRY_POINT;
}
// Disabled because the libassistant.so is not available.
if (!ash::assistant::features::IsLibAssistantDLCEnabled()) {
return AssistantAllowedState::DISALLOWED_BY_NO_BINARY;
}
// Primary account might be missing during unittests.
if (!HasPrimaryAccount(profile))
return AssistantAllowedState::DISALLOWED_BY_NONPRIMARY_USER;
if (!ash::ProfileHelper::IsPrimaryProfile(profile))
return AssistantAllowedState::DISALLOWED_BY_NONPRIMARY_USER;
if (profile->IsOffTheRecord())
return AssistantAllowedState::DISALLOWED_BY_INCOGNITO;
if (ash::demo_mode::IsDeviceInDemoMode()) {
return AssistantAllowedState::DISALLOWED_BY_DEMO_MODE;
}
if (!IsAssistantAllowedForUserType(profile))
return GetErrorForUserType(profile);
if (!IsAssistantAllowedForLocale(profile))
return AssistantAllowedState::DISALLOWED_BY_LOCALE;
if (IsAssistantDisabledByPolicy(profile))
return AssistantAllowedState::DISALLOWED_BY_POLICY;
// Bypass the email domain check when the account is logged in a device with
// dedicated Assistant key.
if (!HasDedicatedAssistantKey() && !IsEmailDomainSupported(profile))
return AssistantAllowedState::DISALLOWED_BY_ACCOUNT_TYPE;
return AssistantAllowedState::ALLOWED;
}
void OverrideIsGoogleDeviceForTesting(bool is_google_device) {
g_override_is_google_device = is_google_device;
}
} // namespace assistant
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