mirror of
https://github.com/localsend/localsend.git
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Tien Do Nam
36 lines
1.3 KiB
Dart
36 lines
1.3 KiB
Dart
import 'dart:typed_data';
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import 'package:localsend_isolates/rust/api/cancel.dart';
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import 'package:localsend_isolates/rust/api/crypto.dart' as rust_crypto;
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import 'package:localsend_isolates/util/android_channel.dart';
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/// Calculates the SHA-256 checksum (lowercase hex) of a single file.
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///
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/// The file is read and hashed in Rust, so this only occupies the Dart isolate
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/// while waiting for the result.
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/// Cancelling [cancelToken] aborts the calculation and throws.
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Future<String> calculateFileHash({
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required String? path,
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required List<int>? bytes,
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required RsCancellationToken cancelToken,
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}) async {
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if (path != null) {
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if (path.startsWith('content://')) {
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// Android SAF files can only be read through a file descriptor.
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// The descriptor is closed by Rust after the file has been read.
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final fileDescriptor = await getFileDescriptorAndroid(uri: path);
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return await rust_crypto.hashFile(fileDescriptor: fileDescriptor, cancelToken: cancelToken);
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}
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return await rust_crypto.hashFile(path: path, cancelToken: cancelToken);
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}
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if (bytes != null) {
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return await rust_crypto.hashFile(
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bytes: bytes is Uint8List ? bytes : Uint8List.fromList(bytes),
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cancelToken: cancelToken,
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);
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}
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throw ArgumentError('Either path or bytes must be provided');
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}
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