140 lines
3.9 KiB
Dart
140 lines
3.9 KiB
Dart
import 'dart:convert';
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import 'dart:io';
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import 'dart:isolate';
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import 'package:crypto/crypto.dart';
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import 'package:get/get.dart';
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import 'package:path/path.dart';
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import 'package:solian/providers/auth.dart';
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import 'package:solian/services.dart';
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import 'package:image/image.dart' as img;
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Future<String> calculateFileSha256(File file) async {
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final bytes = await Isolate.run(() => file.readAsBytesSync());
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final digest = await Isolate.run(() => sha256.convert(bytes));
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return digest.toString();
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}
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Future<double> calculateFileAspectRatio(File file) async {
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final bytes = await Isolate.run(() => file.readAsBytesSync());
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final decoder = await Isolate.run(() => img.findDecoderForData(bytes));
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if (decoder == null) return 1;
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final image = await Isolate.run(() => decoder.decode(bytes));
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if (image == null) return 1;
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return image.width / image.height;
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}
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class AttachmentProvider extends GetConnect {
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static Map<String, String> mimetypeOverrides = {'mov': 'video/quicktime'};
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@override
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void onInit() {
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httpClient.baseUrl = ServiceFinder.services['paperclip'];
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}
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final Map<int, Response> _cachedResponses = {};
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Future<Response> getMetadata(int id, {noCache = false}) async {
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if (!noCache && _cachedResponses.containsKey(id)) {
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return _cachedResponses[id]!;
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}
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final resp = await get('/api/attachments/$id/meta');
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_cachedResponses[id] = resp;
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return resp;
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}
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Future<Response> createAttachment(File file, String hash, String usage,
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{double? ratio}) async {
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final AuthProvider auth = Get.find();
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if (!await auth.isAuthorized) throw Exception('unauthorized');
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final client = auth.configureClient(
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service: 'paperclip',
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timeout: const Duration(minutes: 3),
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);
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final filePayload =
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MultipartFile(await file.readAsBytes(), filename: basename(file.path));
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final fileAlt = basename(file.path).contains('.')
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? basename(file.path).substring(0, basename(file.path).lastIndexOf('.'))
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: basename(file.path);
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final fileExt = basename(file.path)
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.substring(basename(file.path).lastIndexOf('.') + 1)
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.toLowerCase();
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// Override for some files cannot be detected mimetype by server-side
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String? mimetypeOverride;
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if (mimetypeOverrides.keys.contains(fileExt)) {
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mimetypeOverride = mimetypeOverrides[fileExt];
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}
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final payload = FormData({
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'alt': fileAlt,
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'file': filePayload,
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'hash': hash,
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'usage': usage,
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if (mimetypeOverride != null) 'mimetype': mimetypeOverride,
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'metadata': jsonEncode({
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if (ratio != null) 'ratio': ratio,
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}),
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});
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final resp = await client.post('/api/attachments', payload);
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if (resp.statusCode != 200) {
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throw Exception(resp.bodyString);
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}
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return resp;
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}
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Future<Response> updateAttachment(
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int id,
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String alt,
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String usage, {
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double? ratio,
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bool isMature = false,
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}) async {
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final AuthProvider auth = Get.find();
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if (!await auth.isAuthorized) throw Exception('unauthorized');
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final client = auth.configureClient(service: 'paperclip');
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var resp = await client.put('/api/attachments/$id', {
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'metadata': {
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if (ratio != null) 'ratio': ratio,
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},
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'alt': alt,
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'usage': usage,
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'is_mature': isMature,
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});
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if (resp.statusCode != 200) {
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throw Exception(resp.bodyString);
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}
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return resp;
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}
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Future<Response> deleteAttachment(int id) async {
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final AuthProvider auth = Get.find();
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if (!await auth.isAuthorized) throw Exception('unauthorized');
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final client = auth.configureClient(service: 'paperclip');
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var resp = await client.delete('/api/attachments/$id');
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if (resp.statusCode != 200) {
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throw Exception(resp.bodyString);
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}
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return resp;
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}
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void clearCache({int? id}) {
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if (id != null) {
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_cachedResponses.remove(id);
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} else {
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_cachedResponses.clear();
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}
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}
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}
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