Files
MrbWebLibre/app/lib/features/share_intent/domain/services/sharing_intent.dart
T

107 lines
3.9 KiB
Dart

/*
* Copyright (c) 2024-2026 Fabian Freund.
*
* This file is part of WebLibre
* (see https://weblibre.eu).
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
import 'dart:async';
import 'package:mime/mime.dart' as mime;
import 'package:nullability/nullability.dart';
import 'package:path/path.dart' as p;
import 'package:riverpod_annotation/riverpod_annotation.dart';
import 'package:simple_intent_receiver/simple_intent_receiver.dart';
import 'package:uri_to_file/uri_to_file.dart' as uri_to_file;
import 'package:weblibre/core/logger.dart';
import 'package:weblibre/data/models/received_intent_parameter.dart';
part 'sharing_intent.g.dart';
final _sharingIntentTransformer =
StreamTransformer<Intent, ReceivedIntentParameter>.fromHandlers(
handleData: (intent, sink) async {
final data = switch (intent.action) {
'android.intent.action.PROCESS_TEXT' =>
intent.extra['android.intent.extra.PROCESS_TEXT'] as String?,
'android.intent.action.WEB_SEARCH' =>
intent.extra['query'] as String?,
'android.intent.action.VIEW' => intent.data,
'android.intent.action.SEND' =>
intent.extra['android.intent.extra.STREAM'] as String? ??
intent.extra['android.intent.extra.TEXT'] as String?,
_ => null,
};
// Extract container context from shortcut intents
final contextId =
intent.action == 'android.intent.action.VIEW'
? intent.extra['pwa_context_id'] as String?
: null;
if (data != null) {
if (uri_to_file.isUriSupported(data)) {
var path = data;
if (p.extension(data).whenNotEmpty == null) {
if (intent.mimeType.whenNotEmpty != null) {
final ext = mime.extensionFromMime(intent.mimeType!);
if (ext != null) {
path = p.setExtension(path, '.$ext');
} else {
logger.w(
'Could not determine file extension for: ${intent.mimeType}',
);
}
} else {
logger.w(
'Received intent without extension and mime type $path',
);
}
}
try {
final file = await uri_to_file.toFile(path);
final mimeType = mime.lookupMimeType(file.path);
switch (mimeType) {
case 'application/pdf':
sink.add(
ReceivedIntentParameter(path, null, contextId: contextId),
);
default:
logger.w('Unhandled mime type: $mimeType');
}
} catch (e) {
logger.e('Failed to convert URI to file: $e');
// Fallback: pass the original URI
sink.add(
ReceivedIntentParameter(data, null, contextId: contextId),
);
}
} else {
sink.add(
ReceivedIntentParameter(data, null, contextId: contextId),
);
}
}
},
);
@Riverpod(keepAlive: true)
Raw<Stream<ReceivedIntentParameter>> sharingIntentStream(Ref ref) {
final receiver = IntentReceiver.setUp();
return receiver.events.transform(_sharingIntentTransformer);
}