31 lines
1.1 KiB
Dart
31 lines
1.1 KiB
Dart
/*
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* Copyright (c) 2024-2026 Fabian Freund.
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*
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* This file is part of WebLibre
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* (see https://weblibre.eu).
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as
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* published by the Free Software Foundation, either version 3 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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import 'dart:convert';
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/// Decodes URL-safe or standard base64 text, tolerating missing padding.
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String decodeBase64Text(String value) {
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final normalized = value.replaceAll('-', '+').replaceAll('_', '/');
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final padded = normalized.padRight(
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normalized.length + (4 - normalized.length % 4) % 4,
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'=',
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);
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return utf8.decode(base64Decode(padded));
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}
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