Flutter CachedNetworkImage uses NetEase Cloud link 403 error solution

Flutter CachedNetworkImage uses NetEase Cloud link 403 error solution

Error message

Still the familiar error

======== Exception caught by image resource service ================================================
The following HttpExceptionWithStatus was thrown resolving an image codec:
HttpException: Invalid statusCode: 403, uri = https://p1.music.126.net/q7UebOEf7TUkQ_NhBZSNlg==/109951167926630292.jpg?param=512y512

When the exception was thrown, this was the stack: 
Image provider: CachedNetworkImageProvider("https://p1.music.126.net/q7UebOEf7TUkQ_NhBZSNlg==/109951167926630292.jpg?param=512y512", scale: 1.0) 
 Image key: CachedNetworkImageProvider("https://p1.music.126.net/q7UebOEf7TUkQ_NhBZSNlg==/109951167926630292.jpg?param=512y512", scale: 1.0): CachedNetworkImageProvider("https://p1.music.126.net/q7UebOEf7TUkQ_NhBZSNlg==/109951167926630292.jpg?param=512y512", scale: 1.0)

Solution

Click to view the source code of CachedNetworkImage and then viewCachedNetworkImageProvider

foundStream<ui.Codec> _loadBufferAsync()this method

ClickDefaultCacheManagerJump to the relevant source code

ClickCacheManager to jump, and then findFuture<FileInfo> downloadFile()such a method

point turndownloadFilemethod jump

point turn_downloadOrAddToQueue(url, key, authHeaders)method jump

Point 击_updateFile(url, key, authHeaders: authHeaders))Method

Point 击_download(cacheObject, authHeaders)Method

ClickfileFetcherThis variable

ClickHttpFileService()This method

ClickClient()this method, and then jump to this page

ClickcreateClient(), and then you can see the file paths of two implementation classesbrowser_client.dart io_client.dart

Then we return to the previous page, which is the page justcreateClient(), and look up at the header file

browser_client.dartThe file is modified as follows

FindFuture<StreamedResponse> send(BaseRequest request)this method and add the following code

request.headers.remove("user-agent", "Dart/3.1 (dart:io)");

io_client.dartThe file is modified as follows

FindFuture<IOStreamedResponse> send(BaseRequest request)this method and add the following code

ioRequest.headers.remove("user-agent", "Dart/3.1 (dart:io)");

The repair is now complete