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// Copyright (c) 2010 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/chromeos/cros_settings_provider_user.h"
#include "base/logging.h"
#include "base/string_util.h"
#include "base/values.h"
#include "chrome/browser/browser_process.h"
#include "chrome/browser/chromeos/cros/cros_library.h"
#include "chrome/browser/chromeos/cros/login_library.h"
#include "chrome/browser/chromeos/cros_settings.h"
#include "chrome/browser/chromeos/cros_settings_names.h"
#include "chrome/browser/chromeos/login/user_manager.h"
#include "chrome/browser/prefs/pref_service.h"
namespace {
Value* CreateSettingsBooleanValue(bool value, bool managed) {
DictionaryValue* dict = new DictionaryValue;
dict->Set("value", Value::CreateBooleanValue(value));
dict->Set("managed", Value::CreateBooleanValue(managed));
return dict;
}
void UpdateCache(const char* name, bool value) {
PrefService* prefs = g_browser_process->local_state();
prefs->SetBoolean(name, value);
prefs->ScheduleSavePersistentPrefs();
}
} // namespace
namespace chromeos {
UserCrosSettingsProvider::UserCrosSettingsProvider() {
current_user_is_owner_ = UserManager::Get()->current_user_is_owner();
StartFetchingBoolSetting(kAccountsPrefAllowBWSI);
StartFetchingBoolSetting(kAccountsPrefAllowGuest);
StartFetchingBoolSetting(kAccountsPrefShowUserNamesOnSignIn);
}
UserCrosSettingsProvider::~UserCrosSettingsProvider() {
// Cancels all pending callbacks from us.
SignedSettingsHelper::Get()->CancelCallback(this);
}
void UserCrosSettingsProvider::RegisterPrefs(PrefService* local_state) {
// Cached signed settings values
local_state->RegisterBooleanPref(kAccountsPrefAllowBWSI, true);
local_state->RegisterBooleanPref(kAccountsPrefAllowGuest, true);
local_state->RegisterBooleanPref(kAccountsPrefShowUserNamesOnSignIn, true);
local_state->RegisterListPref(kAccountsPrefUsers);
}
bool UserCrosSettingsProvider::cached_allow_bwsi() {
return g_browser_process->local_state()->GetBoolean(kAccountsPrefAllowBWSI);
}
bool UserCrosSettingsProvider::cached_allow_guest() {
return g_browser_process->local_state()->GetBoolean(kAccountsPrefAllowGuest);
}
bool UserCrosSettingsProvider::cached_show_users_on_signin() {
return g_browser_process->local_state()->GetBoolean(
kAccountsPrefShowUserNamesOnSignIn);
}
const ListValue* UserCrosSettingsProvider::cached_whitelist() {
return g_browser_process->local_state()->GetList(kAccountsPrefUsers);
}
void UserCrosSettingsProvider::Set(const std::string& path, Value* in_value) {
if (!current_user_is_owner_) {
LOG(WARNING) << "Changing settings from non-owner, setting=" << path;
// Revert UI change.
CrosSettings::Get()->FireObservers(path.c_str());
return;
}
if (path == kAccountsPrefAllowBWSI ||
path == kAccountsPrefAllowGuest ||
path == kAccountsPrefShowUserNamesOnSignIn) {
bool bool_value = false;
if (in_value->GetAsBoolean(&bool_value)) {
std::string value = bool_value ? "true" : "false";
SignedSettingsHelper::Get()->StartStorePropertyOp(path, value, this);
UpdateCache(path.c_str(), bool_value);
LOG(INFO) << "Set cros setting " << path << "=" << value;
}
} else if (path == kAccountsPrefUsers) {
LOG(INFO) << "Setting user whitelist is not implemented."
<< "Please use whitelist/unwhitelist instead.";
} else {
LOG(WARNING) << "Try to set unhandled cros setting " << path;
}
}
bool UserCrosSettingsProvider::Get(const std::string& path,
Value** out_value) const {
if (path == kAccountsPrefAllowBWSI ||
path == kAccountsPrefAllowGuest ||
path == kAccountsPrefShowUserNamesOnSignIn) {
*out_value = CreateSettingsBooleanValue(
g_browser_process->local_state()->GetBoolean(path.c_str()),
!current_user_is_owner_);
return true;
} else if (path == kAccountsPrefUsers) {
*out_value = GetUserWhitelist();
return true;
}
return false;
}
bool UserCrosSettingsProvider::HandlesSetting(const std::string& path) {
return ::StartsWithASCII(path, "cros.accounts.", true);
}
void UserCrosSettingsProvider::OnWhitelistCompleted(bool success,
const std::string& email) {
LOG(INFO) << "Add " << email << " to whitelist, success=" << success;
// Reload the whitelist on settings op failure.
if (!success)
CrosSettings::Get()->FireObservers(kAccountsPrefUsers);
}
void UserCrosSettingsProvider::OnUnwhitelistCompleted(bool success,
const std::string& email) {
LOG(INFO) << "Remove " << email << " from whitelist, success=" << success;
// Reload the whitelist on settings op failure.
if (!success)
CrosSettings::Get()->FireObservers(kAccountsPrefUsers);
}
void UserCrosSettingsProvider::OnStorePropertyCompleted(
bool success, const std::string& name, const std::string& value) {
LOG(INFO) << "Store cros setting " << name << "=" << value
<< ", success=" << success;
// Reload the setting if store op fails.
if (!success)
SignedSettingsHelper::Get()->StartRetrieveProperty(name, this);
}
void UserCrosSettingsProvider::OnRetrievePropertyCompleted(
bool success, const std::string& name, const std::string& value) {
if (!success) {
LOG(WARNING) << "Failed to retrieve cros setting, name=" << name;
return;
}
LOG(INFO) << "Retrieved cros setting " << name << "=" << value;
UpdateCache(name.c_str(), value == "true" ? true : false);
CrosSettings::Get()->FireObservers(name.c_str());
}
void UserCrosSettingsProvider::WhitelistUser(const std::string& email) {
SignedSettingsHelper::Get()->StartWhitelistOp(email, true, this);
PrefService* prefs = g_browser_process->local_state();
ListValue* cached_whitelist = prefs->GetMutableList(kAccountsPrefUsers);
cached_whitelist->Append(Value::CreateStringValue(email));
prefs->ScheduleSavePersistentPrefs();
}
void UserCrosSettingsProvider::UnwhitelistUser(const std::string& email) {
SignedSettingsHelper::Get()->StartWhitelistOp(email, false, this);
PrefService* prefs = g_browser_process->local_state();
ListValue* cached_whitelist = prefs->GetMutableList(kAccountsPrefUsers);
StringValue email_value(email);
if (cached_whitelist->Remove(email_value) != -1)
prefs->ScheduleSavePersistentPrefs();
}
void UserCrosSettingsProvider::StartFetchingBoolSetting(
const std::string& name) {
if (CrosLibrary::Get()->EnsureLoaded())
SignedSettingsHelper::Get()->StartRetrieveProperty(name, this);
}
ListValue* UserCrosSettingsProvider::GetUserWhitelist() const {
ListValue* user_list = new ListValue;
std::vector<std::string> whitelist;
if (!CrosLibrary::Get()->EnsureLoaded() ||
!CrosLibrary::Get()->GetLoginLibrary()->EnumerateWhitelisted(
&whitelist)) {
LOG(WARNING) << "Failed to retrieve user whitelist.";
} else {
PrefService* prefs = g_browser_process->local_state();
ListValue* cached_whitelist = prefs->GetMutableList(kAccountsPrefUsers);
cached_whitelist->Clear();
const UserManager::User& current_user =
UserManager::Get()->logged_in_user();
for (size_t i = 0; i < whitelist.size(); ++i) {
const std::string& email = whitelist[i];
DictionaryValue* user = new DictionaryValue;
user->SetString("email", email);
user->SetString("name", "");
user->SetBoolean("owner",
current_user_is_owner_ && email == current_user.email());
user_list->Append(user);
cached_whitelist->Append(Value::CreateStringValue(email));
}
prefs->ScheduleSavePersistentPrefs();
}
return user_list;
}
} // namespace chromeos
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