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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/ui/webui/options/chromeos/accounts_options_handler.h"
      6 
      7 #include <string>
      8 
      9 #include "base/bind.h"
     10 #include "base/bind_helpers.h"
     11 #include "base/json/json_reader.h"
     12 #include "base/memory/scoped_ptr.h"
     13 #include "base/prefs/pref_service.h"
     14 #include "base/strings/utf_string_conversions.h"
     15 #include "base/values.h"
     16 #include "chrome/browser/browser_process.h"
     17 #include "chrome/browser/chromeos/login/users/user_manager.h"
     18 #include "chrome/browser/chromeos/policy/browser_policy_connector_chromeos.h"
     19 #include "chrome/browser/chromeos/settings/cros_settings.h"
     20 #include "chrome/browser/ui/webui/chromeos/ui_account_tweaks.h"
     21 #include "chromeos/settings/cros_settings_names.h"
     22 #include "content/public/browser/web_ui.h"
     23 #include "google_apis/gaia/gaia_auth_util.h"
     24 #include "grit/generated_resources.h"
     25 #include "ui/base/l10n/l10n_util.h"
     26 
     27 namespace chromeos {
     28 
     29 namespace {
     30 
     31 // Adds specified user to the whitelist. Returns false if that user is already
     32 // in the whitelist.
     33 bool WhitelistUser(const std::string& username) {
     34   CrosSettings* cros_settings = CrosSettings::Get();
     35   if (cros_settings->FindEmailInList(kAccountsPrefUsers, username, NULL))
     36     return false;
     37   base::StringValue username_value(username);
     38   cros_settings->AppendToList(kAccountsPrefUsers, &username_value);
     39   return true;
     40 }
     41 
     42 }  // namespace
     43 
     44 namespace options {
     45 
     46 AccountsOptionsHandler::AccountsOptionsHandler() {
     47 }
     48 
     49 AccountsOptionsHandler::~AccountsOptionsHandler() {
     50 }
     51 
     52 void AccountsOptionsHandler::RegisterMessages() {
     53   web_ui()->RegisterMessageCallback("whitelistUser",
     54       base::Bind(&AccountsOptionsHandler::HandleWhitelistUser,
     55                  base::Unretained(this)));
     56   web_ui()->RegisterMessageCallback("unwhitelistUser",
     57       base::Bind(&AccountsOptionsHandler::HandleUnwhitelistUser,
     58                  base::Unretained(this)));
     59   web_ui()->RegisterMessageCallback("whitelistExistingUsers",
     60       base::Bind(&AccountsOptionsHandler::HandleWhitelistExistingUsers,
     61                  base::Unretained(this)));
     62 }
     63 
     64 void AccountsOptionsHandler::GetLocalizedValues(
     65     base::DictionaryValue* localized_strings) {
     66   DCHECK(localized_strings);
     67 
     68   RegisterTitle(localized_strings, "accountsPage",
     69                 IDS_OPTIONS_ACCOUNTS_TAB_LABEL);
     70 
     71   localized_strings->SetString("allow_BWSI", l10n_util::GetStringUTF16(
     72       IDS_OPTIONS_ACCOUNTS_ALLOW_BWSI_DESCRIPTION));
     73   localized_strings->SetString(
     74       "allow_supervised_users",
     75       l10n_util::GetStringUTF16(IDS_OPTIONS_ACCOUNTS_ENABLE_SUPERVISED_USERS));
     76   localized_strings->SetString("use_whitelist", l10n_util::GetStringUTF16(
     77       IDS_OPTIONS_ACCOUNTS_USE_WHITELIST_DESCRIPTION));
     78   localized_strings->SetString("show_user_on_signin", l10n_util::GetStringUTF16(
     79       IDS_OPTIONS_ACCOUNTS_SHOW_USER_NAMES_ON_SINGIN_DESCRIPTION));
     80   localized_strings->SetString("username_edit_hint", l10n_util::GetStringUTF16(
     81       IDS_OPTIONS_ACCOUNTS_USERNAME_EDIT_HINT));
     82   localized_strings->SetString("username_format", l10n_util::GetStringUTF16(
     83       IDS_OPTIONS_ACCOUNTS_USERNAME_FORMAT));
     84   localized_strings->SetString("add_users", l10n_util::GetStringUTF16(
     85       IDS_OPTIONS_ACCOUNTS_ADD_USERS));
     86   localized_strings->SetString("owner_only", l10n_util::GetStringUTF16(
     87       IDS_OPTIONS_ACCOUNTS_OWNER_ONLY));
     88 
     89   policy::BrowserPolicyConnectorChromeOS* connector =
     90       g_browser_process->platform_part()->browser_policy_connector_chromeos();
     91   localized_strings->SetBoolean("whitelist_is_managed",
     92                                 connector->IsEnterpriseManaged());
     93 
     94   AddAccountUITweaksLocalizedValues(localized_strings,
     95                                     Profile::FromWebUI(web_ui()));
     96 }
     97 
     98 void AccountsOptionsHandler::HandleWhitelistUser(const base::ListValue* args) {
     99   std::string typed_email;
    100   std::string name;
    101   if (!args->GetString(0, &typed_email) ||
    102       !args->GetString(1, &name)) {
    103     return;
    104   }
    105 
    106   WhitelistUser(gaia::CanonicalizeEmail(typed_email));
    107 }
    108 
    109 void AccountsOptionsHandler::HandleUnwhitelistUser(
    110     const base::ListValue* args) {
    111   std::string email;
    112   if (!args->GetString(0, &email)) {
    113     return;
    114   }
    115 
    116   base::StringValue canonical_email(gaia::CanonicalizeEmail(email));
    117   CrosSettings::Get()->RemoveFromList(kAccountsPrefUsers, &canonical_email);
    118   UserManager::Get()->RemoveUser(email, NULL);
    119 }
    120 
    121 void AccountsOptionsHandler::HandleWhitelistExistingUsers(
    122     const base::ListValue* args) {
    123   DCHECK(args && args->empty());
    124 
    125   // Creates one list to set. This is needed because user white list update is
    126   // asynchronous and sequential. Before previous write comes back, cached list
    127   // is stale and should not be used for appending. See http://crbug.com/127215
    128   scoped_ptr<base::ListValue> new_list;
    129 
    130   CrosSettings* cros_settings = CrosSettings::Get();
    131   const base::ListValue* existing = NULL;
    132   if (cros_settings->GetList(kAccountsPrefUsers, &existing) && existing)
    133     new_list.reset(existing->DeepCopy());
    134   else
    135     new_list.reset(new base::ListValue);
    136 
    137   const UserList& users = UserManager::Get()->GetUsers();
    138   for (UserList::const_iterator it = users.begin(); it < users.end(); ++it)
    139     new_list->AppendIfNotPresent(new base::StringValue((*it)->email()));
    140 
    141   cros_settings->Set(kAccountsPrefUsers, *new_list.get());
    142 }
    143 
    144 }  // namespace options
    145 }  // namespace chromeos
    146