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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/user_manager.h"
     18 #include "chrome/browser/chromeos/settings/cros_settings.h"
     19 #include "chrome/browser/policy/browser_policy_connector.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("use_whitelist", l10n_util::GetStringUTF16(
     74       IDS_OPTIONS_ACCOUNTS_USE_WHITELIST_DESCRIPTION));
     75   localized_strings->SetString("show_user_on_signin", l10n_util::GetStringUTF16(
     76       IDS_OPTIONS_ACCOUNTS_SHOW_USER_NAMES_ON_SINGIN_DESCRIPTION));
     77   localized_strings->SetString("username_edit_hint", l10n_util::GetStringUTF16(
     78       IDS_OPTIONS_ACCOUNTS_USERNAME_EDIT_HINT));
     79   localized_strings->SetString("username_format", l10n_util::GetStringUTF16(
     80       IDS_OPTIONS_ACCOUNTS_USERNAME_FORMAT));
     81   localized_strings->SetString("add_users", l10n_util::GetStringUTF16(
     82       IDS_OPTIONS_ACCOUNTS_ADD_USERS));
     83   localized_strings->SetString("owner_only", l10n_util::GetStringUTF16(
     84       IDS_OPTIONS_ACCOUNTS_OWNER_ONLY));
     85 
     86   localized_strings->SetBoolean("whitelist_is_managed",
     87       g_browser_process->browser_policy_connector()->IsEnterpriseManaged());
     88 
     89   AddAccountUITweaksLocalizedValues(localized_strings);
     90 }
     91 
     92 void AccountsOptionsHandler::HandleWhitelistUser(const base::ListValue* args) {
     93   std::string typed_email;
     94   std::string name;
     95   if (!args->GetString(0, &typed_email) ||
     96       !args->GetString(1, &name)) {
     97     return;
     98   }
     99 
    100   WhitelistUser(gaia::CanonicalizeEmail(typed_email));
    101 }
    102 
    103 void AccountsOptionsHandler::HandleUnwhitelistUser(
    104     const base::ListValue* args) {
    105   std::string email;
    106   if (!args->GetString(0, &email)) {
    107     return;
    108   }
    109 
    110   base::StringValue canonical_email(gaia::CanonicalizeEmail(email));
    111   CrosSettings::Get()->RemoveFromList(kAccountsPrefUsers, &canonical_email);
    112   UserManager::Get()->RemoveUser(email, NULL);
    113 }
    114 
    115 void AccountsOptionsHandler::HandleWhitelistExistingUsers(
    116     const base::ListValue* args) {
    117   DCHECK(args && args->empty());
    118 
    119   // Creates one list to set. This is needed because user white list update is
    120   // asynchronous and sequential. Before previous write comes back, cached list
    121   // is stale and should not be used for appending. See http://crbug.com/127215
    122   scoped_ptr<base::ListValue> new_list;
    123 
    124   CrosSettings* cros_settings = CrosSettings::Get();
    125   const base::ListValue* existing = NULL;
    126   if (cros_settings->GetList(kAccountsPrefUsers, &existing) && existing)
    127     new_list.reset(existing->DeepCopy());
    128   else
    129     new_list.reset(new base::ListValue);
    130 
    131   const UserList& users = UserManager::Get()->GetUsers();
    132   for (UserList::const_iterator it = users.begin(); it < users.end(); ++it)
    133     new_list->AppendIfNotPresent(new base::StringValue((*it)->email()));
    134 
    135   cros_settings->Set(kAccountsPrefUsers, *new_list.get());
    136 }
    137 
    138 }  // namespace options
    139 }  // namespace chromeos
    140