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// Copyright 2012 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/prefs/incognito_mode_prefs.h"
#include <stdint.h>
#include "base/command_line.h"
#include "base/logging.h"
#include "build/build_config.h"
#include "chrome/browser/defaults.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/common/chrome_switches.h"
#include "chrome/common/pref_names.h"
#include "components/policy/core/common/policy_pref_names.h"
#include "components/pref_registry/pref_registry_syncable.h"
#include "components/prefs/pref_service.h"
#if BUILDFLAG(IS_WIN)
#include "chrome/browser/win/parental_controls.h"
#endif // BUILDFLAG(IS_WIN)
#if BUILDFLAG(IS_ANDROID)
#include "chrome/browser/android/partner_browser_customizations.h"
#endif // BUILDFLAG(IS_ANDROID)
using policy::IncognitoModeAvailability;
// static
const IncognitoModeAvailability IncognitoModePrefs::kDefaultAvailability =
policy::IncognitoModeAvailability::kEnabled;
// static
bool IncognitoModePrefs::IntToAvailability(
int in_value,
IncognitoModeAvailability* out_value) {
if (in_value < 0 ||
in_value >= static_cast<int>(IncognitoModeAvailability::kNumTypes)) {
*out_value = kDefaultAvailability;
return false;
}
*out_value = static_cast<IncognitoModeAvailability>(in_value);
return true;
}
// static
IncognitoModeAvailability IncognitoModePrefs::GetAvailability(
const PrefService* pref_service) {
return GetAvailabilityInternal(pref_service, CHECK_PARENTAL_CONTROLS);
}
// static
void IncognitoModePrefs::SetAvailability(
PrefService* prefs,
const IncognitoModeAvailability availability) {
prefs->SetInteger(policy::policy_prefs::kIncognitoModeAvailability,
static_cast<int>(availability));
}
// static
void IncognitoModePrefs::RegisterProfilePrefs(
user_prefs::PrefRegistrySyncable* registry) {
registry->RegisterIntegerPref(
policy::policy_prefs::kIncognitoModeAvailability,
static_cast<int>(kDefaultAvailability));
#if BUILDFLAG(IS_ANDROID)
registry->RegisterBooleanPref(prefs::kIncognitoReauthenticationForAndroid,
false);
#endif
}
// static
bool IncognitoModePrefs::ShouldLaunchIncognito(
const base::CommandLine& command_line,
const PrefService* prefs) {
return ShouldLaunchIncognitoInternal(command_line, prefs, false);
}
// static
bool IncognitoModePrefs::ShouldOpenSubsequentBrowsersInIncognito(
const base::CommandLine& command_line,
const PrefService* prefs) {
return ShouldLaunchIncognitoInternal(command_line, prefs, true);
}
// static
bool IncognitoModePrefs::CanOpenBrowser(Profile* profile) {
switch (GetAvailability(profile->GetPrefs())) {
case IncognitoModeAvailability::kEnabled:
return true;
case IncognitoModeAvailability::kDisabled:
return !profile->IsIncognitoProfile();
case IncognitoModeAvailability::kForced:
return profile->IsIncognitoProfile();
default:
NOTREACHED();
}
}
// static
bool IncognitoModePrefs::IsIncognitoAllowed(Profile* profile) {
return !profile->IsGuestSession() &&
IncognitoModePrefs::GetAvailability(profile->GetPrefs()) !=
IncognitoModeAvailability::kDisabled;
}
// static
bool IncognitoModePrefs::ArePlatformParentalControlsEnabled() {
#if BUILDFLAG(IS_WIN)
return GetWinParentalControls().logging_required;
#elif BUILDFLAG(IS_ANDROID)
return android::PartnerBrowserCustomizations::IsIncognitoDisabled();
#else
return false;
#endif
}
// static
IncognitoModeAvailability IncognitoModePrefs::GetAvailabilityInternal(
const PrefService* pref_service,
GetAvailabilityMode mode) {
DCHECK(pref_service);
int pref_value = pref_service->GetInteger(
policy::policy_prefs::kIncognitoModeAvailability);
IncognitoModeAvailability result = kDefaultAvailability;
bool valid = IntToAvailability(pref_value, &result);
DCHECK(valid);
if (result != IncognitoModeAvailability::kDisabled &&
mode == CHECK_PARENTAL_CONTROLS && ArePlatformParentalControlsEnabled()) {
if (result == IncognitoModeAvailability::kForced) {
LOG(ERROR) << "Ignoring FORCED incognito. Parental control logging on";
}
return IncognitoModeAvailability::kDisabled;
}
return result;
}
// static
bool IncognitoModePrefs::ShouldLaunchIncognitoInternal(
const base::CommandLine& command_line,
const PrefService* prefs,
const bool for_subsequent_browsers) {
// Note: This code only checks parental controls if the user requested
// to launch in incognito mode or if it was forced via prefs. This way,
// the parental controls check (which can be quite slow) can be avoided
// most of the time.
bool forced_by_switch = command_line.HasSwitch(switches::kIncognito);
if (for_subsequent_browsers) {
forced_by_switch =
forced_by_switch &&
browser_defaults::
kAlwaysOpenIncognitoBrowserIfStartedWithIncognitoSwitch;
}
bool should_use_incognito =
forced_by_switch ||
GetAvailabilityInternal(prefs, DONT_CHECK_PARENTAL_CONTROLS) ==
IncognitoModeAvailability::kForced;
return should_use_incognito &&
GetAvailabilityInternal(prefs, CHECK_PARENTAL_CONTROLS) !=
IncognitoModeAvailability::kDisabled;
}
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