private BackgroundTransferRequest PrepareTransfer(Uri remoteUri, string destination,
Action <BackgroundTransferRequest> onFinished)
{
if (TransferCountExceeded())
{
throw new BackgroundTransferException("The maximum number of background file transfer requests for this application has been exceeded.");
}
BackgroundTransferRequest transferRequest = new BackgroundTransferRequest(remoteUri);
// GET and POST are supported.
transferRequest.Method = "GET";
//var inProgressRelativePath = destination.Length > 150 ? Path.GetFileName(destination) : destination;
//var inProgressSubPath = Path.GetDirectoryName(destination);
//// too long file paths throw a "DirectoryNotFoundException"
//var nameCandidate = Path.GetFileNameWithoutExtension(destination)
// .Replace(".", "")
// .Replace("(", "")
// .Replace(")", "")
// .Replace(" ", "");
//var name = nameCandidate.Length > 0 ? nameCandidate : "temp";
//var inProgressTempPath = tempDownloadDir + "\\" + inProgressSubPath + "\\" + name + Path.GetExtension(destination);
var inProgressTempPath = tempDownloadDir + TailIfNeeded(destination);
var inProgressUri = new Uri(inProgressTempPath, UriKind.RelativeOrAbsolute);
transferRequest.DownloadLocation = inProgressUri;
// DownloadLocation does not always equal inProgressUri, encoding takes place, apparently in the setter.
var inProgressDir = Path.GetDirectoryName(transferRequest.DownloadLocation.OriginalString);
FileUtils.CreateDirIfNotExists(inProgressDir);
transferRequest.Tag = destination;
transferRequest.TransferPreferences = RequestSettings.TransferPrefs();
transferRequest.TransferStatusChanged += async(sender, e) => {
await OnTransferStatusUpdate(e.Request, onFinished);
OnDownloadStatusUpdate(transferRequest);
};
transferRequest.TransferProgressChanged += (sender, e) => {
OnDownloadStatusUpdate(transferRequest);
};
return(transferRequest);
}
