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      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/chromeos/extensions/info_private_api.h"
      6 
      7 #include "base/basictypes.h"
      8 #include "base/prefs/pref_service.h"
      9 #include "base/sys_info.h"
     10 #include "base/values.h"
     11 #include "chrome/browser/app_mode/app_mode_utils.h"
     12 #include "chrome/browser/browser_process.h"
     13 #include "chrome/browser/chromeos/login/startup_utils.h"
     14 #include "chrome/browser/chromeos/policy/browser_policy_connector_chromeos.h"
     15 #include "chrome/browser/chromeos/settings/cros_settings.h"
     16 #include "chrome/browser/chromeos/system/timezone_util.h"
     17 #include "chrome/browser/profiles/profile.h"
     18 #include "chrome/common/pref_names.h"
     19 #include "chromeos/network/device_state.h"
     20 #include "chromeos/network/network_handler.h"
     21 #include "chromeos/network/network_state_handler.h"
     22 #include "chromeos/settings/cros_settings_names.h"
     23 #include "chromeos/system/statistics_provider.h"
     24 #include "components/metrics/metrics_service.h"
     25 #include "components/user_manager/user_manager.h"
     26 #include "extensions/common/error_utils.h"
     27 #include "third_party/cros_system_api/dbus/service_constants.h"
     28 
     29 using chromeos::NetworkHandler;
     30 
     31 namespace extensions {
     32 
     33 namespace {
     34 
     35 // Key which corresponds to the HWID setting.
     36 const char kPropertyHWID[] = "hwid";
     37 
     38 // Key which corresponds to the customization ID setting.
     39 const char kPropertyCustomizationID[] = "customizationId";
     40 
     41 // Key which corresponds to the home provider property.
     42 const char kPropertyHomeProvider[] = "homeProvider";
     43 
     44 // Key which corresponds to the initial_locale property.
     45 const char kPropertyInitialLocale[] = "initialLocale";
     46 
     47 // Key which corresponds to the board property in JS.
     48 const char kPropertyBoard[] = "board";
     49 
     50 // Key which corresponds to the isOwner property in JS.
     51 const char kPropertyOwner[] = "isOwner";
     52 
     53 // Key which corresponds to the clientId property in JS.
     54 const char kPropertyClientId[] = "clientId";
     55 
     56 // Key which corresponds to the timezone property in JS.
     57 const char kPropertyTimezone[] = "timezone";
     58 
     59 // Key which corresponds to the timezone property in JS.
     60 const char kPropertySupportedTimezones[] = "supportedTimezones";
     61 
     62 // Key which corresponds to the large cursor A11Y property in JS.
     63 const char kPropertyLargeCursorEnabled[] = "a11yLargeCursorEnabled";
     64 
     65 // Key which corresponds to the sticky keys A11Y property in JS.
     66 const char kPropertyStickyKeysEnabled[] = "a11yStickyKeysEnabled";
     67 
     68 // Key which corresponds to the spoken feedback A11Y property in JS.
     69 const char kPropertySpokenFeedbackEnabled[] = "a11ySpokenFeedbackEnabled";
     70 
     71 // Key which corresponds to the high contrast mode A11Y property in JS.
     72 const char kPropertyHighContrastEnabled[] = "a11yHighContrastEnabled";
     73 
     74 // Key which corresponds to the screen magnifier A11Y property in JS.
     75 const char kPropertyScreenMagnifierEnabled[] = "a11yScreenMagnifierEnabled";
     76 
     77 // Key which corresponds to the auto click A11Y property in JS.
     78 const char kPropertyAutoclickEnabled[] = "a11yAutoClickEnabled";
     79 
     80 // Key which corresponds to the auto click A11Y property in JS.
     81 const char kPropertyVirtualKeyboardEnabled[] = "a11yVirtualKeyboardEnabled";
     82 
     83 // Key which corresponds to the send-function-keys property in JS.
     84 const char kPropertySendFunctionsKeys[] = "sendFunctionKeys";
     85 
     86 // Property not found error message.
     87 const char kPropertyNotFound[] = "Property '*' does not exist.";
     88 
     89 const struct {
     90   const char* api_name;
     91   const char* preference_name;
     92 } kPreferencesMap[] = {
     93       {kPropertyLargeCursorEnabled, prefs::kAccessibilityLargeCursorEnabled},
     94       {kPropertyStickyKeysEnabled, prefs::kAccessibilityStickyKeysEnabled},
     95       {kPropertySpokenFeedbackEnabled,
     96        prefs::kAccessibilitySpokenFeedbackEnabled},
     97       {kPropertyHighContrastEnabled, prefs::kAccessibilityHighContrastEnabled},
     98       {kPropertyScreenMagnifierEnabled,
     99        prefs::kAccessibilityScreenMagnifierEnabled},
    100       {kPropertyAutoclickEnabled, prefs::kAccessibilityAutoclickEnabled},
    101       {kPropertyVirtualKeyboardEnabled,
    102        prefs::kAccessibilityVirtualKeyboardEnabled},
    103       {kPropertySendFunctionsKeys, prefs::kLanguageSendFunctionKeys}};
    104 
    105 const char* GetBoolPrefNameForApiProperty(const char* api_name) {
    106   for (size_t i = 0;
    107        i < (sizeof(kPreferencesMap)/sizeof(*kPreferencesMap));
    108        i++) {
    109     if (strcmp(kPreferencesMap[i].api_name, api_name) == 0)
    110       return kPreferencesMap[i].preference_name;
    111   }
    112 
    113   return NULL;
    114 }
    115 
    116 bool IsEnterpriseKiosk() {
    117   if (!chrome::IsRunningInForcedAppMode())
    118     return false;
    119 
    120   policy::BrowserPolicyConnectorChromeOS* connector =
    121       g_browser_process->platform_part()->browser_policy_connector_chromeos();
    122   return connector->IsEnterpriseManaged();
    123 }
    124 
    125 std::string GetClientId() {
    126   return IsEnterpriseKiosk()
    127              ? g_browser_process->metrics_service()->GetClientId()
    128              : std::string();
    129 }
    130 
    131 }  // namespace
    132 
    133 ChromeosInfoPrivateGetFunction::ChromeosInfoPrivateGetFunction() {
    134 }
    135 
    136 ChromeosInfoPrivateGetFunction::~ChromeosInfoPrivateGetFunction() {
    137 }
    138 
    139 bool ChromeosInfoPrivateGetFunction::RunAsync() {
    140   base::ListValue* list = NULL;
    141   EXTENSION_FUNCTION_VALIDATE(args_->GetList(0, &list));
    142   scoped_ptr<base::DictionaryValue> result(new base::DictionaryValue());
    143   for (size_t i = 0; i < list->GetSize(); ++i) {
    144     std::string property_name;
    145     EXTENSION_FUNCTION_VALIDATE(list->GetString(i, &property_name));
    146     base::Value* value = GetValue(property_name);
    147     if (value)
    148       result->Set(property_name, value);
    149   }
    150   SetResult(result.release());
    151   SendResponse(true);
    152   return true;
    153 }
    154 
    155 base::Value* ChromeosInfoPrivateGetFunction::GetValue(
    156     const std::string& property_name) {
    157   if (property_name == kPropertyHWID) {
    158     std::string hwid;
    159     chromeos::system::StatisticsProvider* provider =
    160         chromeos::system::StatisticsProvider::GetInstance();
    161     provider->GetMachineStatistic(chromeos::system::kHardwareClassKey, &hwid);
    162     return new base::StringValue(hwid);
    163   } else if (property_name == kPropertyCustomizationID) {
    164     std::string customization_id;
    165     chromeos::system::StatisticsProvider* provider =
    166         chromeos::system::StatisticsProvider::GetInstance();
    167     provider->GetMachineStatistic(chromeos::system::kCustomizationIdKey,
    168                                   &customization_id);
    169     return new base::StringValue(customization_id);
    170   } else if (property_name == kPropertyHomeProvider) {
    171     const chromeos::DeviceState* cellular_device =
    172         NetworkHandler::Get()->network_state_handler()->GetDeviceStateByType(
    173             chromeos::NetworkTypePattern::Cellular());
    174     std::string home_provider_id;
    175     if (cellular_device)
    176       home_provider_id = cellular_device->home_provider_id();
    177     return new base::StringValue(home_provider_id);
    178   } else if (property_name == kPropertyInitialLocale) {
    179     return new base::StringValue(
    180         chromeos::StartupUtils::GetInitialLocale());
    181   } else if (property_name == kPropertyBoard) {
    182     return new base::StringValue(base::SysInfo::GetLsbReleaseBoard());
    183   } else if (property_name == kPropertyOwner) {
    184     return new base::FundamentalValue(
    185         user_manager::UserManager::Get()->IsCurrentUserOwner());
    186   } else if (property_name == kPropertyClientId) {
    187     return new base::StringValue(GetClientId());
    188   } else if (property_name == kPropertyTimezone) {
    189     return chromeos::CrosSettings::Get()->GetPref(
    190             chromeos::kSystemTimezone)->DeepCopy();
    191   } else if (property_name == kPropertySupportedTimezones) {
    192     scoped_ptr<base::ListValue> values = chromeos::system::GetTimezoneList();
    193     return values.release();
    194   } else {
    195     const char* pref_name =
    196         GetBoolPrefNameForApiProperty(property_name.c_str());
    197     if (pref_name) {
    198       return new base::FundamentalValue(
    199           Profile::FromBrowserContext(context_)->GetPrefs()->GetBoolean(
    200               pref_name));
    201     }
    202   }
    203 
    204   DLOG(ERROR) << "Unknown property request: " << property_name;
    205   return NULL;
    206 }
    207 
    208 ChromeosInfoPrivateSetFunction::ChromeosInfoPrivateSetFunction() {
    209 }
    210 
    211 ChromeosInfoPrivateSetFunction::~ChromeosInfoPrivateSetFunction() {
    212 }
    213 
    214 bool ChromeosInfoPrivateSetFunction::RunSync() {
    215   std::string param_name;
    216   EXTENSION_FUNCTION_VALIDATE(args_->GetString(0, &param_name));
    217   if (param_name == kPropertyTimezone) {
    218     std::string param_value;
    219     EXTENSION_FUNCTION_VALIDATE(args_->GetString(1, &param_value));
    220     chromeos::CrosSettings::Get()->Set(chromeos::kSystemTimezone,
    221                                        base::StringValue(param_value));
    222   } else {
    223     const char* pref_name = GetBoolPrefNameForApiProperty(param_name.c_str());
    224     if (pref_name) {
    225       bool param_value;
    226       EXTENSION_FUNCTION_VALIDATE(args_->GetBoolean(1, &param_value));
    227       Profile::FromBrowserContext(context_)->GetPrefs()->SetBoolean(
    228           pref_name,
    229           param_value);
    230     } else {
    231       error_ = ErrorUtils::FormatErrorMessage(kPropertyNotFound, param_name);
    232       return false;
    233     }
    234   }
    235 
    236   return true;
    237 }
    238 
    239 }  // namespace extensions
    240