mirror of
https://github.com/Yubico/yubioath-flutter.git
synced 2024-12-12 05:22:05 +03:00
100 lines
2.9 KiB
Dart
Executable File
100 lines
2.9 KiB
Dart
Executable File
/*
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* Copyright (C) 2022 Yubico.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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import 'dart:math';
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import 'package:flutter/material.dart';
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import 'package:flutter_gen/gen_l10n/app_localizations.dart';
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import '../../app/message.dart';
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import '../../app/models.dart';
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import '../../widgets/utf8_utils.dart';
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import '../keys.dart';
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import '../models.dart';
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import 'add_account_page.dart';
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import 'add_multi_account_page.dart';
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/// Calculates the available space for issuer and account name.
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///
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/// Returns a record of the space available for the issuer and account name,
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/// respectively, based on the current state of the credential.
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(int, int) getRemainingKeySpace(
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{required OathType oathType,
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required int period,
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required String issuer,
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required String name}) {
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int remaining = 64; // The field is 64 bytes in total.
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if (oathType == OathType.totp && period != defaultPeriod) {
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// Non-standard TOTP periods are stored as part of this data, as a "D/"- prefix.
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remaining -= '$period/'.length;
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}
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int issuerSpace = byteLength(issuer);
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if (issuer.isNotEmpty) {
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// Issuer is separated from name with a ":", if present.
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issuerSpace += 1;
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}
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return (
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// Always reserve at least one character for name
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remaining - 1 - max(byteLength(name), 1),
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remaining - issuerSpace,
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);
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}
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/// Gets a textual name for the account, based on the issuer and name.
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String getTextName(OathCredential credential) {
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return credential.issuer != null
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? '${credential.issuer} (${credential.name})'
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: credential.name;
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}
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Future<void> handleUri(
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BuildContext context,
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List<OathCredential>? credentials,
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String qrData,
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DevicePath? devicePath,
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OathState? state,
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AppLocalizations l10n,
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) async {
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List<CredentialData> creds;
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try {
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creds = CredentialData.fromUri(Uri.parse(qrData));
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} catch (_) {
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showMessage(context, l10n.l_invalid_qr);
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return;
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}
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if (creds.isEmpty) {
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showMessage(context, l10n.l_qr_not_found);
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} else if (creds.length == 1) {
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await showBlurDialog(
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context: context,
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builder: (context) => OathAddAccountPage(
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devicePath,
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state,
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credentials: credentials,
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credentialData: creds[0],
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),
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);
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} else {
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await showBlurDialog(
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context: context,
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builder: (context) => OathAddMultiAccountPage(devicePath, state, creds,
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key: migrateAccountAction),
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);
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}
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}
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