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fix(playback): skip network requests if cached file already exists

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This commit is contained in:
Kingkor Roy Tirtho 2025-09-05 11:03:56 +06:00
parent 345c6ac714
commit f870e12011
1 changed files with 47 additions and 59 deletions
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106
lib/provider/server/routes/playback.dart
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@ -48,6 +48,7 @@ class ServerPlaybackRoutes {
Future<({dio_lib.Response<Uint8List> response, Uint8List? bytes})>
streamTrack(
Request request,
SourcedTrack track,
Map<String, dynamic> headers,
) async {
@ -59,35 +60,6 @@ class ServerPlaybackRoutes {
),
),
);
final trackPartialCacheFile = File("${trackCacheFile.path}.part");
String? url = track.url;
url ??= await ref
.read(trackSourcesProvider(track.query).notifier)
.swapWithNextSibling()
.then((track) => track.url!);
var options = Options(
headers: {
...headers,
"user-agent": _randomUserAgent,
"Cache-Control": "max-age=3600",
"Connection": "keep-alive",
"host": Uri.parse(url!).host,
},
responseType: ResponseType.bytes,
validateStatus: (status) => status! < 400,
);
final headersRes = await Future<dio_lib.Response?>.value(
dio.head(
url,
options: options,
),
).catchError((_) async => null);
final contentLength = headersRes?.headers.value("content-length");
if (await trackCacheFile.exists() && userPreferences.cacheMusic) {
final bytes = await trackCacheFile.readAsBytes();
@ -102,12 +74,51 @@ class ServerPlaybackRoutes {
"accept-ranges": ["bytes"],
"content-range": ["bytes 0-$cachedFileLength/$cachedFileLength"],
}),
requestOptions: RequestOptions(path: url),
requestOptions: RequestOptions(path: request.requestedUri.toString()),
),
bytes: bytes,
);
}
final trackPartialCacheFile = File("${trackCacheFile.path}.part");
String url = track.url ??
await ref
.read(trackSourcesProvider(track.query).notifier)
.swapWithNextSibling()
.then((track) => track.url!);
var options = Options(
headers: {
...headers,
"user-agent": _randomUserAgent,
"Cache-Control": "max-age=3600",
"Connection": "keep-alive",
"host": Uri.parse(url).host,
},
responseType: ResponseType.bytes,
validateStatus: (status) => status! < 400,
);
final contentLengthRes = await Future<dio_lib.Response?>.value(
dio.head(
url,
options: options,
),
).catchError((e, stack) async {
AppLogger.reportError(e, stack);
final sourcedTrack = await ref
.read(trackSourcesProvider(track.query).notifier)
.refreshStreamingUrl();
url = sourcedTrack.url!;
return dio.head(url, options: options);
});
final contentLength = contentLengthRes?.headers.value("content-length");
/// Forcing partial content range as mpv sometimes greedily wants
/// everything at one go. Slows down overall streaming.
final range = RangeHeader.parse(headers["range"] ?? "");
@ -123,33 +134,7 @@ class ServerPlaybackRoutes {
);
}
final res = await dio
.get<Uint8List>(
url,
options: options.copyWith(headers: {
...?options.headers,
"user-agent": _randomUserAgent,
}),
)
.catchError((e, stack) async {
AppLogger.reportError(e, stack);
final sourcedTrack = await ref
.read(trackSourcesProvider(track.query).notifier)
.refreshStreamingUrl();
// It gets updated by itself.
// if (playlist.activeTrack?.id == sourcedTrack.query.id) {
// ref.read(activeTrackSourcesProvider.notifier).update(sourcedTrack);
// }
return await dio.get<Uint8List>(
sourcedTrack.url!,
options: options.copyWith(headers: {
...?options.headers,
"user-agent": _randomUserAgent,
}),
);
});
final res = await dio.get<Uint8List>(url, options: options);
final bytes = res.data;
@ -228,8 +213,11 @@ class ServerPlaybackRoutes {
).future,
);
final (bytes: audioBytes, response: res) =
await streamTrack(sourcedTrack!, request.headers);
final (bytes: audioBytes, response: res) = await streamTrack(
request,
sourcedTrack!,
request.headers,
);
return Response(
res.statusCode!,