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/pref_registry/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 #if defined(OS_WIN)
24 namespace {
25
26 bool g_parental_control_on = false;
27
28 } // empty namespace
29 #endif // OS_WIN
30
31 // static
IntToAvailability(int in_value,Availability * out_value)32 bool IncognitoModePrefs::IntToAvailability(int in_value,
33 Availability* out_value) {
34 if (in_value < 0 || in_value >= AVAILABILITY_NUM_TYPES) {
35 *out_value = ENABLED;
36 return false;
37 }
38 *out_value = static_cast<Availability>(in_value);
39 return true;
40 }
41
42 // static
GetAvailability(const PrefService * pref_service)43 IncognitoModePrefs::Availability IncognitoModePrefs::GetAvailability(
44 const PrefService* pref_service) {
45 DCHECK(pref_service);
46 int pref_value = pref_service->GetInteger(prefs::kIncognitoModeAvailability);
47 Availability result = IncognitoModePrefs::ENABLED;
48 bool valid = IntToAvailability(pref_value, &result);
49 DCHECK(valid);
50 if (ArePlatformParentalControlsEnabled()) {
51 if (result == IncognitoModePrefs::FORCED)
52 LOG(ERROR) << "Ignoring FORCED incognito. Parental control logging on";
53 return IncognitoModePrefs::DISABLED;
54 }
55 return result;
56 }
57
58 // static
SetAvailability(PrefService * prefs,const Availability availability)59 void IncognitoModePrefs::SetAvailability(PrefService* prefs,
60 const Availability availability) {
61 prefs->SetInteger(prefs::kIncognitoModeAvailability, availability);
62 }
63
64 // static
RegisterProfilePrefs(user_prefs::PrefRegistrySyncable * registry)65 void IncognitoModePrefs::RegisterProfilePrefs(
66 user_prefs::PrefRegistrySyncable* registry) {
67 registry->RegisterIntegerPref(
68 prefs::kIncognitoModeAvailability,
69 IncognitoModePrefs::ENABLED,
70 user_prefs::PrefRegistrySyncable::UNSYNCABLE_PREF);
71 }
72
73 // static
ShouldLaunchIncognito(const CommandLine & command_line,const PrefService * prefs)74 bool IncognitoModePrefs::ShouldLaunchIncognito(
75 const CommandLine& command_line,
76 const PrefService* prefs) {
77 Availability incognito_avail = GetAvailability(prefs);
78 return incognito_avail != IncognitoModePrefs::DISABLED &&
79 (command_line.HasSwitch(switches::kIncognito) ||
80 incognito_avail == IncognitoModePrefs::FORCED);
81 }
82
83 // static
CanOpenBrowser(Profile * profile)84 bool IncognitoModePrefs::CanOpenBrowser(Profile* profile) {
85 switch (GetAvailability(profile->GetPrefs())) {
86 case IncognitoModePrefs::ENABLED:
87 return true;
88
89 case IncognitoModePrefs::DISABLED:
90 return !profile->IsOffTheRecord();
91
92 case IncognitoModePrefs::FORCED:
93 return profile->IsOffTheRecord();
94
95 default:
96 NOTREACHED();
97 return false;
98 }
99 }
100
101 // static
ArePlatformParentalControlsEnabled()102 bool IncognitoModePrefs::ArePlatformParentalControlsEnabled() {
103 #if defined(OS_WIN)
104 // Disable incognito mode windows if parental controls are on. This is only
105 // for Windows Vista and above.
106 return base::win::IsParentalControlActivityLoggingOn();
107 #elif defined(OS_ANDROID)
108 return chrome::android::ChromiumApplication::AreParentalControlsEnabled();
109 #else
110 return false;
111 #endif
112 }
113
114 #if defined(OS_WIN)
InitializePlatformParentalControls()115 void IncognitoModePrefs::InitializePlatformParentalControls() {
116 g_parental_control_on = base::win::IsParentalControlActivityLoggingOn();
117 }
118 #endif // OS_WIN
119
ArePlatformParentalControlsEnabledCached()120 bool IncognitoModePrefs::ArePlatformParentalControlsEnabledCached() {
121 #if defined(OS_WIN)
122 return g_parental_control_on;
123 #elif defined(OS_ANDROID)
124 return chrome::android::ChromiumApplication::AreParentalControlsEnabled();
125 #else
126 return false;
127 #endif
128 }
129
130