1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 #include "chrome/browser/prefs/incognito_mode_prefs.h"
6
7 #include "base/command_line.h"
8 #include "base/logging.h"
9 #include "base/prefs/pref_service.h"
10 #include "chrome/browser/profiles/profile.h"
11 #include "chrome/common/chrome_switches.h"
12 #include "chrome/common/pref_names.h"
13 #include "components/user_prefs/pref_registry_syncable.h"
14
15 #if defined(OS_WIN)
16 #include "base/win/metro.h"
17 #endif // OS_WIN
18
19 #if defined(OS_ANDROID)
20 #include "chrome/browser/android/chromium_application.h"
21 #endif // OS_ANDROID
22
23 // static
IntToAvailability(int in_value,Availability * out_value)24 bool IncognitoModePrefs::IntToAvailability(int in_value,
25 Availability* out_value) {
26 if (in_value < 0 || in_value >= AVAILABILITY_NUM_TYPES) {
27 *out_value = ENABLED;
28 return false;
29 }
30 *out_value = static_cast<Availability>(in_value);
31 return true;
32 }
33
34 // static
GetAvailability(const PrefService * pref_service)35 IncognitoModePrefs::Availability IncognitoModePrefs::GetAvailability(
36 const PrefService* pref_service) {
37 DCHECK(pref_service);
38 int pref_value = pref_service->GetInteger(prefs::kIncognitoModeAvailability);
39 Availability result = IncognitoModePrefs::ENABLED;
40 bool valid = IntToAvailability(pref_value, &result);
41 DCHECK(valid);
42 if (ArePlatformParentalControlsEnabled()) {
43 if (result == IncognitoModePrefs::FORCED)
44 LOG(ERROR) << "Ignoring FORCED incognito. Parental control logging on";
45 return IncognitoModePrefs::DISABLED;
46 }
47 return result;
48 }
49
50 // static
SetAvailability(PrefService * prefs,const Availability availability)51 void IncognitoModePrefs::SetAvailability(PrefService* prefs,
52 const Availability availability) {
53 prefs->SetInteger(prefs::kIncognitoModeAvailability, availability);
54 }
55
56 // static
RegisterProfilePrefs(user_prefs::PrefRegistrySyncable * registry)57 void IncognitoModePrefs::RegisterProfilePrefs(
58 user_prefs::PrefRegistrySyncable* registry) {
59 registry->RegisterIntegerPref(
60 prefs::kIncognitoModeAvailability,
61 IncognitoModePrefs::ENABLED,
62 user_prefs::PrefRegistrySyncable::UNSYNCABLE_PREF);
63 }
64
65 // static
ShouldLaunchIncognito(const CommandLine & command_line,const PrefService * prefs)66 bool IncognitoModePrefs::ShouldLaunchIncognito(
67 const CommandLine& command_line,
68 const PrefService* prefs) {
69 Availability incognito_avail = GetAvailability(prefs);
70 return incognito_avail != IncognitoModePrefs::DISABLED &&
71 (command_line.HasSwitch(switches::kIncognito) ||
72 incognito_avail == IncognitoModePrefs::FORCED);
73 }
74
75 // static
CanOpenBrowser(Profile * profile)76 bool IncognitoModePrefs::CanOpenBrowser(Profile* profile) {
77 switch (GetAvailability(profile->GetPrefs())) {
78 case IncognitoModePrefs::ENABLED:
79 return true;
80 case IncognitoModePrefs::DISABLED:
81 return !profile->IsOffTheRecord();
82 case IncognitoModePrefs::FORCED:
83 return profile->IsOffTheRecord();
84 case IncognitoModePrefs::AVAILABILITY_NUM_TYPES:
85 NOTREACHED();
86 }
87 NOTREACHED();
88 return false;
89 }
90
91 // static
ArePlatformParentalControlsEnabled()92 bool IncognitoModePrefs::ArePlatformParentalControlsEnabled() {
93 #if defined(OS_WIN)
94 // Disable incognito mode windows if parental controls are on. This is only
95 // for Windows Vista and above.
96 return base::win::IsParentalControlActivityLoggingOn();
97 #elif defined(OS_ANDROID)
98 return chrome::android::ChromiumApplication::AreParentalControlsEnabled();
99 #endif
100 return false;
101 }
102