private async Task UploadFile(UploadFile file, string summary, string newPageContent, CancellationToken cancelToken)
{
var maxLagRetries = 3;
while (true)
{
cancelToken.ThrowIfCancellationRequested();
file.SetUploading();
IUploadResponse response;
try
{
response = await _fileUploader.UpLoadAsync(
file.FullPath,
cancelToken,
summary,
newPageContent);
}
finally
{
await _helpers.Wait(_appSettings.UploadDelay, cancelToken);
}
// Note: Only access response.Result once, as thgis makes testing much easier
// as a chain of responses can be faked. See maclag tests in UploadViewModelTests.cs
var result = response.Result;
if (result == ResponseCodes.Success)
{
UploadFiles.Remove(file);
}
else if (result == ResponseCodes.Warning)
{
file.SetWarning(response.Warnings.ToString());
}
else if (result == ResponseCodes.MaxlagThrottle)
{
if (--maxLagRetries < 0)
{
throw new ServerIsBusyException();
}
await _helpers.Wait(response.RetryDelay * 1000, cancelToken);
continue;
}
else if (response.Errors.IsAny)
{
if (response.Errors.IsTokenError)
{
if (_editTokenRefreshed)
{
throw new NoEditTokenException();
}
else
{
await RefreshEditToken();
continue;
}
}
else if (response.Errors.IsMutsBeLoggedInError)
{
file.SetError(response.Errors.ToString());
throw new MustBeLoggedInException();
}
else if (response.Errors.IsRateLimitedError)
{
file.SetDelaying(Resources.WaitingForRetry + " " + response.Errors.ToString());
await _helpers.Wait(_appSettings.RateLimitedBackoffPeriod, cancelToken);
continue;
}
else
{
file.SetError(response.Errors.ToString());
}
}
else
{
file.SetError(UploadMessages.UnkownServerResponse);
}
return;
}
}