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// Copyright 2024 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/ui/sync/sync_passphrase_dialog.h"
#include <functional>
#include <string>
#include <string_view>
#include "base/functional/bind.h"
#include "base/functional/callback_forward.h"
#include "base/functional/callback_helpers.h"
#include "base/strings/utf_string_conversions.h"
#include "chrome/browser/browser_process.h"
#include "chrome/browser/ui/browser.h"
#include "chrome/browser/ui/browser_dialogs.h"
#include "chrome/browser/ui/browser_window/public/browser_window_interface.h"
#include "chrome/common/url_constants.h"
#include "chrome/grit/branded_strings.h"
#include "chrome/grit/generated_resources.h"
#include "components/google/core/common/google_util.h"
#include "components/strings/grit/components_strings.h"
#include "components/sync/service/sync_service.h"
#include "components/sync/service/sync_user_settings.h"
#include "ui/base/l10n/l10n_util.h"
#include "ui/base/models/dialog_model.h"
#include "ui/base/models/dialog_model_field.h"
#include "ui/base/models/dialog_model_host.h"
#include "ui/base/window_open_disposition.h"
#include "url/gurl.h"
namespace {
// Opens the sync dashboard webpage where the user may clear their sync data.
void OpenSyncDashboardAndCloseDialog(BrowserWindowInterface& browser,
ui::DialogModel* model) {
GURL sync_dashboard_url = google_util::AppendGoogleLocaleParam(
GURL(chrome::kSyncGoogleDashboardURL),
g_browser_process->GetApplicationLocale());
browser.OpenGURL(sync_dashboard_url,
WindowOpenDisposition::NEW_FOREGROUND_TAB);
model->host()->Close();
}
// Returns the content of the password field.
const std::u16string GetSyncPassphraseFieldText(ui::DialogModel* model) {
return model->GetPasswordFieldByUniqueId(kSyncPassphrasePasswordFieldId)
->text();
}
// Callback for the password field. Disables the button when the field is
// empty.
void OnPasswordFieldChanged(ui::DialogModel* model) {
std::u16string passphrase = GetSyncPassphraseFieldText(model);
ui::DialogModel::Button* ok_button =
model->GetButtonByUniqueId(kSyncPassphraseOkButtonFieldId);
model->SetButtonEnabled(ok_button, !passphrase.empty());
}
// Callback for the password field. Invalidates the field if the passphrase is
// incorrect. `decrypt_data_callback` is piped into this function.
bool HandlePassphraseError(ui::DialogModel* model, bool passphrase_is_valid) {
if (!passphrase_is_valid) {
ui::DialogModelPasswordField* password_field =
model->GetPasswordFieldByUniqueId(kSyncPassphrasePasswordFieldId);
password_field->Invalidate();
}
return passphrase_is_valid;
}
} // namespace
DEFINE_ELEMENT_IDENTIFIER_VALUE(kSyncPassphrasePasswordFieldId);
DEFINE_ELEMENT_IDENTIFIER_VALUE(kSyncPassphraseOkButtonFieldId);
void ShowSyncPassphraseDialog(
Browser& browser,
base::RepeatingCallback<bool(std::u16string_view)> decrypt_data_callback) {
ui::DialogModel::Builder dialog_builder;
// Link for the footnote.
base::RepeatingClosure link_closure =
base::BindRepeating(&OpenSyncDashboardAndCloseDialog, std::ref(browser),
dialog_builder.model());
ui::DialogModelLabel::TextReplacement link_replacement =
ui::DialogModelLabel::CreateLink(
IDS_SYNC_PASSPHRASE_DIALOG_FOOTER_LINK, std::move(link_closure),
l10n_util::GetStringUTF16(
IDS_SYNC_PASSPHRASE_DIALOG_FOOTER_LINK_ACC));
// The OK button is initially disabled, as the passphrase must be non-empty.
ui::DialogModel::Button::Params ok_button_params;
ok_button_params.SetEnabled(false)
.SetLabel(l10n_util::GetStringUTF16(IDS_SYNC_PASSPHRASE_DIALOG_OK_BUTTON))
.SetId(kSyncPassphraseOkButtonFieldId);
// Callback for the OK button.
// If the passphrase is correct, the dialog is closed. If it's incorrect, the
// text field is cleared but remains open for the user to try again.
base::RepeatingCallback<bool()> ok_callback =
base::BindRepeating(&GetSyncPassphraseFieldText,
base::Unretained(dialog_builder.model()))
.Then(decrypt_data_callback)
.Then(base::BindRepeating(&HandlePassphraseError,
base::Unretained(dialog_builder.model())));
dialog_builder.SetInternalName("SyncPassphraseDialog")
.SetTitle(l10n_util::GetStringUTF16(IDS_SYNC_PASSPHRASE_DIALOG_TITLE))
.AddParagraph(ui::DialogModelLabel(IDS_SYNC_PASSPHRASE_DIALOG_BODY))
.AddPasswordField(
kSyncPassphrasePasswordFieldId,
/*label=*/std::u16string(),
/*accessible_text=*/
l10n_util::GetStringUTF16(IDS_SYNC_PASSPHRASE_LABEL),
l10n_util::GetStringUTF16(IDS_SETTINGS_INCORRECT_PASSPHRASE_ERROR))
.AddOkButton(std::move(ok_callback), ok_button_params)
.AddCancelButton(base::DoNothing())
.SetFootnote(ui::DialogModelLabel::CreateWithReplacement(
IDS_SYNC_PASSPHRASE_DIALOG_FOOTER, std::move(link_replacement)));
// Listen to password field change events, to disable the OK button when the
// passphrase is empty.
ui::DialogModel* model = dialog_builder.model();
auto subscription =
model->GetPasswordFieldByUniqueId(kSyncPassphrasePasswordFieldId)
->AddOnFieldChangedCallback(base::BindRepeating(
&OnPasswordFieldChanged, base::Unretained(model)));
// Dummy callback to own the subscription.
dialog_builder.SetDialogDestroyingCallback(
base::BindOnce([](base::CallbackListSubscription subscription) {},
std::move(subscription)));
chrome::ShowBrowserModal(&browser, dialog_builder.Build());
}
bool SyncPassphraseDialogDecryptData(syncer::SyncService* sync_service,
std::u16string_view passphrase) {
if (!sync_service || !sync_service->IsEngineInitialized()) {
// Even though this is a failure, return true so that the dialog closes and
// the user does not need to try again.
return true;
}
syncer::SyncUserSettings* sync_user_settings =
sync_service->GetUserSettings();
if (!sync_user_settings->IsPassphraseRequired()) {
return true;
}
if (passphrase.empty()) {
// Empty passphrases are not allowed.
return false;
}
return sync_user_settings->SetDecryptionPassphrase(
base::UTF16ToUTF8(passphrase));
}
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