136 lines
3.5 KiB
Dart
136 lines
3.5 KiB
Dart
// @dart=2.9
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/*
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* Famedly Matrix SDK
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* Copyright (C) 2020, 2021 Famedly GmbH
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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 <https://www.gnu.org/licenses/>.
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*/
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/// Workaround until [File] in dart:io and dart:html is unified
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import 'dart:typed_data';
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import 'crypto/encrypted_file.dart';
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import 'package:mime/mime.dart';
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import '../../matrix.dart';
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class MatrixFile {
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Uint8List bytes;
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String name;
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String mimeType;
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/// Encrypts this file and returns the
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/// encryption information as an [EncryptedFile].
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Future<EncryptedFile> encrypt() async {
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return await encryptFile(bytes);
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}
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MatrixFile({this.bytes, this.name, this.mimeType}) {
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mimeType ??=
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lookupMimeType(name, headerBytes: bytes) ?? 'application/octet-stream';
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name = name.split('/').last.toLowerCase();
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}
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int get size => bytes.length;
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String get msgType {
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if (mimeType.toLowerCase().startsWith('image/')) {
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return MessageTypes.Image;
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}
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if (mimeType.toLowerCase().startsWith('video/')) {
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return MessageTypes.Video;
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}
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if (mimeType.toLowerCase().startsWith('audio/')) {
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return MessageTypes.Audio;
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}
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return MessageTypes.File;
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}
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Map<String, dynamic> get info => ({
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'mimetype': mimeType,
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'size': size,
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});
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}
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class MatrixImageFile extends MatrixFile {
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int width;
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int height;
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String blurhash;
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MatrixImageFile(
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{Uint8List bytes,
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String name,
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String mimeType,
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this.width,
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this.height,
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this.blurhash})
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: super(bytes: bytes, name: name, mimeType: mimeType);
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@override
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String get msgType => 'm.image';
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@override
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Map<String, dynamic> get info => ({
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...super.info,
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if (width != null) 'w': width,
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if (height != null) 'h': height,
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if (blurhash != null) 'xyz.amorgan.blurhash': blurhash,
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});
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}
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class MatrixVideoFile extends MatrixFile {
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int width;
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int height;
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int duration;
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MatrixVideoFile(
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{Uint8List bytes,
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String name,
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String mimeType,
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this.width,
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this.height,
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this.duration})
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: super(bytes: bytes, name: name, mimeType: mimeType);
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@override
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String get msgType => 'm.video';
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@override
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Map<String, dynamic> get info => ({
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...super.info,
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if (width != null) 'w': width,
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if (height != null) 'h': height,
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if (duration != null) 'duration': duration,
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});
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}
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class MatrixAudioFile extends MatrixFile {
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int duration;
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MatrixAudioFile(
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{Uint8List bytes, String name, String mimeType, this.duration})
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: super(bytes: bytes, name: name, mimeType: mimeType);
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@override
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String get msgType => 'm.audio';
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@override
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Map<String, dynamic> get info => ({
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...super.info,
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if (duration != null) 'duration': duration,
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});
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}
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extension ToMatrixFile on EncryptedFile {
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MatrixFile toMatrixFile() {
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return MatrixFile(
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bytes: data, name: 'crypt', mimeType: 'application/octet-stream');
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}
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}
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