mirror of
https://github.com/immich-app/immich.git
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feat(mobile): native clients (#21459)
* platform clients * uppercase http method * fix hot reload * custom user agent * init before app launch * set defaults * move to bootstrap * unrelated change * disable disk cache by default * optimized decoding * remove incremental * android impl * memory optimization * lock approach is slower on ios * conditional cronet * clarify parameter * enable disk cache * set user agent * flutter-side decode * optimized http * fixed locking * refactor * potential race conditions * embedded cronet * refactor, fix capacity handling * fast path for known content length * ios optimizations * re-enable cache * formatting * bump concurrency * clear cache button * fix eviction race condition * add extra cancellation check * tighten dispose * better error handling * fix disposal --------- Co-authored-by: Alex <alex.tran1502@gmail.com>
This commit is contained in:
Mert
@@ -1,14 +1,10 @@
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part of 'image_request.dart';
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class RemoteImageRequest extends ImageRequest {
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static final log = Logger('RemoteImageRequest');
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static final client = HttpClient()..maxConnectionsPerHost = 16;
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final RemoteCacheManager? cacheManager;
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final String uri;
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final Map<String, String> headers;
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HttpClientRequest? _request;
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RemoteImageRequest({required this.uri, required this.headers, this.cacheManager});
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RemoteImageRequest({required this.uri, required this.headers});
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@override
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Future<ImageInfo?> load(ImageDecoderCallback decode, {double scale = 1.0}) async {
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@@ -16,164 +12,18 @@ class RemoteImageRequest extends ImageRequest {
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return null;
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}
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// TODO: the cache manager makes everything sequential with its DB calls and its operations cannot be cancelled,
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// so it ends up being a bottleneck. We only prefer fetching from it when it can skip the DB call.
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final cachedFileImage = await _loadCachedFile(uri, decode, scale, inMemoryOnly: true);
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if (cachedFileImage != null) {
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return cachedFileImage;
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}
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try {
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final buffer = await _downloadImage(uri);
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if (buffer == null) {
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return null;
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}
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return await _decodeBuffer(buffer, decode, scale);
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} catch (e) {
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if (_isCancelled) {
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return null;
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}
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final cachedFileImage = await _loadCachedFile(uri, decode, scale, inMemoryOnly: false);
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if (cachedFileImage != null) {
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return cachedFileImage;
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}
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rethrow;
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} finally {
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_request = null;
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}
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}
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Future<ImmutableBuffer?> _downloadImage(String url) async {
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if (_isCancelled) {
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return null;
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}
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final request = _request = await client.getUrl(Uri.parse(url));
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if (_isCancelled) {
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request.abort();
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return _request = null;
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}
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for (final entry in headers.entries) {
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request.headers.set(entry.key, entry.value);
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}
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final response = await request.close();
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if (_isCancelled) {
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return null;
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}
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final cacheManager = this.cacheManager;
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final streamController = StreamController<List<int>>(sync: true);
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final Stream<List<int>> stream;
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unawaited(cacheManager?.putStreamedFile(url, streamController.stream));
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stream = response.map((chunk) {
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if (_isCancelled) {
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throw StateError('Cancelled request');
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}
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if (cacheManager != null) {
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streamController.add(chunk);
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}
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return chunk;
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});
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try {
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final Uint8List bytes = await _downloadBytes(stream, response.contentLength);
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unawaited(streamController.close());
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return await ImmutableBuffer.fromUint8List(bytes);
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} catch (e) {
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streamController.addError(e);
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unawaited(streamController.close());
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if (_isCancelled) {
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return null;
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}
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rethrow;
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}
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}
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Future<Uint8List> _downloadBytes(Stream<List<int>> stream, int length) async {
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final Uint8List bytes;
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int offset = 0;
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if (length > 0) {
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// Known content length - use pre-allocated buffer
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bytes = Uint8List(length);
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await stream.listen((chunk) {
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bytes.setAll(offset, chunk);
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offset += chunk.length;
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}, cancelOnError: true).asFuture();
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} else {
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// Unknown content length - collect chunks dynamically
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final chunks = <List<int>>[];
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int totalLength = 0;
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await stream.listen((chunk) {
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chunks.add(chunk);
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totalLength += chunk.length;
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}, cancelOnError: true).asFuture();
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bytes = Uint8List(totalLength);
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for (final chunk in chunks) {
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bytes.setAll(offset, chunk);
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offset += chunk.length;
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}
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}
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return bytes;
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}
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Future<ImageInfo?> _loadCachedFile(
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String url,
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ImageDecoderCallback decode,
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double scale, {
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required bool inMemoryOnly,
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}) async {
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final cacheManager = this.cacheManager;
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if (_isCancelled || cacheManager == null) {
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return null;
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}
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final file = await (inMemoryOnly ? cacheManager.getFileFromMemory(url) : cacheManager.getFileFromCache(url));
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if (_isCancelled || file == null) {
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return null;
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}
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try {
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final buffer = await ImmutableBuffer.fromFilePath(file.file.path);
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return await _decodeBuffer(buffer, decode, scale);
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} catch (e) {
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log.severe('Failed to decode cached image', e);
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unawaited(_evictFile(url));
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return null;
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}
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}
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Future<void> _evictFile(String url) async {
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try {
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await cacheManager?.removeFile(url);
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} catch (e) {
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log.severe('Failed to remove cached image', e);
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}
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}
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Future<ImageInfo?> _decodeBuffer(ImmutableBuffer buffer, ImageDecoderCallback decode, scale) async {
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if (_isCancelled) {
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buffer.dispose();
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return null;
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}
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final codec = await decode(buffer);
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if (_isCancelled) {
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buffer.dispose();
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codec.dispose();
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return null;
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}
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final frame = await codec.getNextFrame();
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return ImageInfo(image: frame.image, scale: scale);
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final info = await remoteImageApi.requestImage(uri, headers: headers, requestId: requestId);
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final frame = switch (info) {
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{'pointer': int pointer, 'length': int length} => await _fromEncodedPlatformImage(pointer, length),
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{'pointer': int pointer, 'width': int width, 'height': int height, 'rowBytes': int rowBytes} =>
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await _fromDecodedPlatformImage(pointer, width, height, rowBytes),
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_ => null,
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};
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return frame == null ? null : ImageInfo(image: frame.image, scale: scale);
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}
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@override
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void _onCancelled() {
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_request?.abort();
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_request = null;
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Future<void> _onCancelled() {
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return remoteImageApi.cancelRequest(requestId);
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}
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}
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