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// Copyright 2019 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/ui/webui/settings/chromeos/kerberos_accounts_handler.h"
#include <utility>
#include "base/bind.h"
#include "base/strings/string16.h"
#include "base/strings/stringprintf.h"
#include "base/values.h"
#include "chrome/browser/chromeos/kerberos/kerberos_credentials_manager.h"
#include "third_party/skia/include/core/SkBitmap.h"
#include "ui/base/l10n/time_format.h"
#include "ui/base/resource/resource_bundle.h"
#include "ui/base/webui/web_ui_util.h"
#include "ui/chromeos/resources/grit/ui_chromeos_resources.h"
#include "ui/gfx/image/image_skia.h"
namespace chromeos {
namespace settings {
KerberosAccountsHandler::KerberosAccountsHandler()
: credentials_manager_observer_(this) {}
KerberosAccountsHandler::~KerberosAccountsHandler() = default;
void KerberosAccountsHandler::RegisterMessages() {
web_ui()->RegisterMessageCallback(
"getKerberosAccounts",
base::BindRepeating(&KerberosAccountsHandler::HandleGetKerberosAccounts,
weak_factory_.GetWeakPtr()));
web_ui()->RegisterMessageCallback(
"addKerberosAccount",
base::BindRepeating(&KerberosAccountsHandler::HandleAddKerberosAccount,
weak_factory_.GetWeakPtr()));
web_ui()->RegisterMessageCallback(
"removeKerberosAccount",
base::BindRepeating(&KerberosAccountsHandler::HandleRemoveKerberosAccount,
weak_factory_.GetWeakPtr()));
web_ui()->RegisterMessageCallback(
"validateKerberosConfig",
base::BindRepeating(
&KerberosAccountsHandler::HandleValidateKerberosConfig,
weak_factory_.GetWeakPtr()));
web_ui()->RegisterMessageCallback(
"setAsActiveKerberosAccount",
base::BindRepeating(
&KerberosAccountsHandler::HandleSetAsActiveKerberosAccount,
weak_factory_.GetWeakPtr()));
}
void KerberosAccountsHandler::HandleGetKerberosAccounts(
const base::ListValue* args) {
AllowJavascript();
CHECK_EQ(1U, args->GetSize());
const std::string& callback_id = args->GetList()[0].GetString();
if (!KerberosCredentialsManager::Get().IsKerberosEnabled()) {
ResolveJavascriptCallback(base::Value(callback_id), base::Value());
return;
}
KerberosCredentialsManager::Get().ListAccounts(
base::BindOnce(&KerberosAccountsHandler::OnListAccounts,
weak_factory_.GetWeakPtr(), callback_id));
}
void KerberosAccountsHandler::OnListAccounts(
const std::string& callback_id,
const kerberos::ListAccountsResponse& response) {
base::ListValue accounts;
// Ticket icon is a key.
gfx::ImageSkia skia_ticket_icon =
*ui::ResourceBundle::GetSharedInstance().GetImageSkiaNamed(
IDR_KERBEROS_ICON_KEY);
std::string ticket_icon = webui::GetBitmapDataUrl(
skia_ticket_icon.GetRepresentation(1.0f).GetBitmap());
const std::string& active_principal =
KerberosCredentialsManager::Get().GetActiveAccount();
for (int n = 0; n < response.accounts_size(); ++n) {
const kerberos::Account& account = response.accounts(n);
// Format validity time as 'xx hours yy minutes' for validity < 1 day and
// 'nn days' otherwise.
base::TimeDelta tgt_validity =
base::TimeDelta::FromSeconds(account.tgt_validity_seconds());
const base::string16 valid_for_duration = ui::TimeFormat::Detailed(
ui::TimeFormat::FORMAT_DURATION, ui::TimeFormat::LENGTH_LONG,
tgt_validity < base::TimeDelta::FromDays(1) ? -1 : 0, tgt_validity);
base::DictionaryValue account_dict;
account_dict.SetString("principalName", account.principal_name());
account_dict.SetString("config", account.krb5conf());
account_dict.SetBoolean("isSignedIn", account.tgt_validity_seconds() > 0);
account_dict.SetString("validForDuration", valid_for_duration);
account_dict.SetBoolean("isActive",
account.principal_name() == active_principal);
account_dict.SetBoolean("isManaged", account.is_managed());
account_dict.SetBoolean("passwordWasRemembered",
account.password_was_remembered());
account_dict.SetString("pic", ticket_icon);
accounts.GetList().push_back(std::move(account_dict));
}
ResolveJavascriptCallback(base::Value(callback_id), std::move(accounts));
}
void KerberosAccountsHandler::HandleAddKerberosAccount(
const base::ListValue* args) {
AllowJavascript();
// TODO(https://crbug.com/961246):
// - Prevent account changes when Kerberos is disabled.
// - Remove all accounts when Kerberos is disabled.
CHECK_EQ(6U, args->GetSize());
const std::string& callback_id = args->GetList()[0].GetString();
const std::string& principal_name = args->GetList()[1].GetString();
const std::string& password = args->GetList()[2].GetString();
const bool remember_password = args->GetList()[3].GetBool();
const std::string& config = args->GetList()[4].GetString();
const bool allow_existing = args->GetList()[5].GetBool();
if (!KerberosCredentialsManager::Get().IsKerberosEnabled()) {
ResolveJavascriptCallback(base::Value(callback_id),
base::Value(kerberos::ERROR_KERBEROS_DISABLED));
return;
}
KerberosCredentialsManager::Get().AddAccountAndAuthenticate(
principal_name, false /* is_managed */, password, remember_password,
config, allow_existing,
base::BindOnce(&KerberosAccountsHandler::OnAddAccountAndAuthenticate,
weak_factory_.GetWeakPtr(), callback_id));
}
void KerberosAccountsHandler::OnAddAccountAndAuthenticate(
const std::string& callback_id,
kerberos::ErrorType error) {
ResolveJavascriptCallback(base::Value(callback_id),
base::Value(static_cast<int>(error)));
}
void KerberosAccountsHandler::HandleRemoveKerberosAccount(
const base::ListValue* args) {
AllowJavascript();
CHECK_EQ(2U, args->GetSize());
const std::string& callback_id = args->GetList()[0].GetString();
const std::string& principal_name = args->GetList()[1].GetString();
if (!KerberosCredentialsManager::Get().IsKerberosEnabled()) {
ResolveJavascriptCallback(base::Value(callback_id),
base::Value(kerberos::ERROR_KERBEROS_DISABLED));
return;
}
KerberosCredentialsManager::Get().RemoveAccount(
principal_name, base::BindOnce(&KerberosAccountsHandler::OnRemoveAccount,
weak_factory_.GetWeakPtr(), callback_id));
}
void KerberosAccountsHandler::OnRemoveAccount(const std::string& callback_id,
kerberos::ErrorType error) {
ResolveJavascriptCallback(base::Value(callback_id),
base::Value(static_cast<int>(error)));
}
void KerberosAccountsHandler::HandleValidateKerberosConfig(
const base::ListValue* args) {
AllowJavascript();
CHECK_EQ(2U, args->GetSize());
const std::string& callback_id = args->GetList()[0].GetString();
const std::string& krb5conf = args->GetList()[1].GetString();
if (!KerberosCredentialsManager::Get().IsKerberosEnabled()) {
ResolveJavascriptCallback(base::Value(callback_id),
base::Value(kerberos::ERROR_KERBEROS_DISABLED));
return;
}
KerberosCredentialsManager::Get().ValidateConfig(
krb5conf, base::BindOnce(&KerberosAccountsHandler::OnValidateConfig,
weak_factory_.GetWeakPtr(), callback_id));
}
void KerberosAccountsHandler::OnValidateConfig(
const std::string& callback_id,
const kerberos::ValidateConfigResponse& response) {
base::Value error_info(base::Value::Type::DICTIONARY);
error_info.SetKey("code", base::Value(response.error_info().code()));
if (response.error_info().has_line_index()) {
error_info.SetKey("lineIndex",
base::Value(response.error_info().line_index()));
}
base::Value value(base::Value::Type::DICTIONARY);
value.SetKey("error", base::Value(static_cast<int>(response.error())));
value.SetKey("errorInfo", std::move(error_info));
ResolveJavascriptCallback(base::Value(callback_id), std::move(value));
}
void KerberosAccountsHandler::HandleSetAsActiveKerberosAccount(
const base::ListValue* args) {
AllowJavascript();
CHECK_EQ(1U, args->GetSize());
const std::string& principal_name = args->GetList()[0].GetString();
KerberosCredentialsManager::Get().SetActiveAccount(principal_name);
}
void KerberosAccountsHandler::OnJavascriptAllowed() {
credentials_manager_observer_.Add(&KerberosCredentialsManager::Get());
}
void KerberosAccountsHandler::OnJavascriptDisallowed() {
credentials_manager_observer_.RemoveAll();
}
void KerberosAccountsHandler::OnAccountsChanged() {
RefreshUI();
}
void KerberosAccountsHandler::RefreshUI() {
FireWebUIListener("kerberos-accounts-changed");
}
} // namespace settings
} // namespace chromeos
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