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add support for novel image

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This commit is contained in:
wgh19
2024-05-20 17:42:54 +08:00
parent 93ce4eb94b
commit c51df1efde
4 changed files with 323 additions and 172 deletions
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118
lib/foundation/image_provider.dart
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@@ -45,10 +45,10 @@ abstract class BaseImageProvider<T extends BaseImageProvider<T>>
}
Future<ui.Codec> _loadBufferAsync(
T key,
StreamController<ImageChunkEvent> chunkEvents,
ImageDecoderCallback decode,
) async {
T key,
StreamController<ImageChunkEvent> chunkEvents,
ImageDecoderCallback decode,
) async {
try {
int retryTime = 1;
@@ -83,11 +83,11 @@ abstract class BaseImageProvider<T extends BaseImageProvider<T>>
}
}
if(stop) {
if (stop) {
throw Exception("Image loading is stopped");
}
if(data!.isEmpty) {
if (data!.isEmpty) {
throw Exception("Empty image data");
}
@@ -147,13 +147,13 @@ class CachedImageProvider extends BaseImageProvider<CachedImageProvider> {
String get key => url;
@override
Future<Uint8List> load(StreamController<ImageChunkEvent> chunkEvents) async{
Future<Uint8List> load(StreamController<ImageChunkEvent> chunkEvents) async {
chunkEvents.add(const ImageChunkEvent(
cumulativeBytesLoaded: 0,
expectedTotalBytes: 1,
));
var cached = await CacheManager().findCache(key);
if(cached != null) {
if (cached != null) {
chunkEvents.add(const ImageChunkEvent(
cumulativeBytesLoaded: 1,
expectedTotalBytes: 1,
@@ -161,30 +161,28 @@ class CachedImageProvider extends BaseImageProvider<CachedImageProvider> {
return await File(cached).readAsBytes();
}
var dio = AppDio();
final time = DateFormat("yyyy-MM-dd'T'HH:mm:ss'+00:00'").format(DateTime.now());
final time =
DateFormat("yyyy-MM-dd'T'HH:mm:ss'+00:00'").format(DateTime.now());
final hash = md5.convert(utf8.encode(time + Network.hashSalt)).toString();
var res = await dio.get<ResponseBody>(
url,
options: Options(
responseType: ResponseType.stream,
validateStatus: (status) => status != null && status < 500,
headers: {
"referer": "https://app-api.pixiv.net/",
"user-agent": "PixivAndroidApp/5.0.234 (Android 14; Pixes)",
"x-client-time": time,
"x-client-hash": hash,
"accept-enconding": "gzip",
}
)
);
if(res.statusCode != 200) {
var res = await dio.get<ResponseBody>(url,
options: Options(
responseType: ResponseType.stream,
validateStatus: (status) => status != null && status < 500,
headers: {
"referer": "https://app-api.pixiv.net/",
"user-agent": "PixivAndroidApp/5.0.234 (Android 14; Pixes)",
"x-client-time": time,
"x-client-hash": hash,
"accept-enconding": "gzip",
}));
if (res.statusCode != 200) {
throw BadRequestException("Failed to load image: ${res.statusCode}");
}
var data = <int>[];
var cachingFile = await CacheManager().openWrite(key);
await for (var chunk in res.data!.stream) {
var length = res.data!.contentLength+1;
if(length < data.length) {
var length = res.data!.contentLength + 1;
if (length < data.length) {
length = data.length + 1;
}
data.addAll(chunk);
@@ -203,3 +201,71 @@ class CachedImageProvider extends BaseImageProvider<CachedImageProvider> {
return SynchronousFuture<CachedImageProvider>(this);
}
}
class CachedNovelImageProvider
extends BaseImageProvider<CachedNovelImageProvider> {
final String novelId;
final String imageId;
CachedNovelImageProvider(this.novelId, this.imageId);
@override
String get key => "$novelId/$imageId";
@override
Future<Uint8List> load(StreamController<ImageChunkEvent> chunkEvents) async {
chunkEvents.add(const ImageChunkEvent(
cumulativeBytesLoaded: 0,
expectedTotalBytes: 1,
));
var cached = await CacheManager().findCache(key);
if (cached != null) {
chunkEvents.add(const ImageChunkEvent(
cumulativeBytesLoaded: 1,
expectedTotalBytes: 1,
));
return await File(cached).readAsBytes();
}
var urlRes = await Network().getNovelImage(novelId, imageId);
var url = urlRes.data;
var dio = AppDio();
final time =
DateFormat("yyyy-MM-dd'T'HH:mm:ss'+00:00'").format(DateTime.now());
final hash = md5.convert(utf8.encode(time + Network.hashSalt)).toString();
var res = await dio.get<ResponseBody>(url,
options: Options(
responseType: ResponseType.stream,
validateStatus: (status) => status != null && status < 500,
headers: {
"referer": "https://app-api.pixiv.net/",
"user-agent": "PixivAndroidApp/5.0.234 (Android 14; Pixes)",
"x-client-time": time,
"x-client-hash": hash,
"accept-enconding": "gzip",
}));
if (res.statusCode != 200) {
throw BadRequestException("Failed to load image: ${res.statusCode}");
}
var data = <int>[];
var cachingFile = await CacheManager().openWrite(key);
await for (var chunk in res.data!.stream) {
var length = res.data!.contentLength + 1;
if (length < data.length) {
length = data.length + 1;
}
data.addAll(chunk);
await cachingFile.writeBytes(chunk);
chunkEvents.add(ImageChunkEvent(
cumulativeBytesLoaded: data.length,
expectedTotalBytes: length,
));
}
await cachingFile.close();
return Uint8List.fromList(data);
}
@override
Future<CachedNovelImageProvider> obtainKey(ImageConfiguration configuration) {
return SynchronousFuture<CachedNovelImageProvider>(this);
}
}