private async void FileSendRequestReceivedHandler(object sender,
ToxEventArgs.FileSendRequestEventArgs e)
{
if (e.FileKind != ToxFileKind.Data || e.FriendNumber != _friendNumber)
{
return;
}
var fileId = _toxModel.FileGetId(e.FriendNumber, e.FileNumber);
var resumeData = await _fileTransferResumer.GetDownloadData(fileId);
OneFileTransferModel oneFileTransferModel;
// If we could find the resume data for this download, we resume it instead of handling it as a new transfer.
if (resumeData != null)
{
oneFileTransferModel =
await
OneBrokenFileTransferModel.CreateInstance(_dataService, e.FriendNumber, e.FileNumber,
resumeData.File.Name,
e.FileSize, TransferDirection.Down, resumeData.File, resumeData.TransferredBytes);
}
else
{
// We add a transfer with a null value instead of an actual stream here. We will replace it with an actual file stream
// in OneFileTransferModel.AcceptTransfer() when the user accepts the request and chooses a location to save the file to.
oneFileTransferModel =
await
OneFileTransferModel.CreateInstance(_dataService, e.FriendNumber, e.FileNumber, e.FileName,
e.FileSize,
TransferDirection.Down, null);
}
FileTransferAdded?.Invoke(this, oneFileTransferModel);
}
private async Task ResumeBrokenUploadsForFriend(int friendNumber)
{
var resumeDataOfBrokenUploads = await _fileTransferResumer.GetUploadData(friendNumber);
foreach (var resumeData in resumeDataOfBrokenUploads)
{
var fileSizeInBytes = await GetFileSizeInBytes(resumeData.File);
bool successfulFileSend;
var fileInfo = _toxModel.FileSend(resumeData.FriendNumber, ToxFileKind.Data,
fileSizeInBytes, resumeData.File.Name, resumeData.FileId, out successfulFileSend);
if (successfulFileSend)
{
var oneFileTransferModel =
await
OneBrokenFileTransferModel.CreateInstance(_dataService, resumeData.FriendNumber,
fileInfo.Number,
resumeData.File.Name, fileSizeInBytes, TransferDirection.Up, resumeData.File,
resumeData.TransferredBytes);
FileTransferAdded?.Invoke(this, oneFileTransferModel);
}
}
}
public new static async Task<OneFileTransferModel> CreateInstance(int friendNumber, int fileNumber, string name,
long fileSizeInBytes, TransferDirection direction, StorageFile file, long transferredBytes = 0)
{
if (file != null)
FileTransferResumer.Instance.RecordTransfer(file, friendNumber, fileNumber, direction);
var fileStream = file == null ? null : await GetStreamBasedOnDirection(file, direction);
var oneBrokenFileDownloadModel = new OneBrokenFileTransferModel(friendNumber, fileNumber, name,
fileSizeInBytes, direction, fileStream, transferredBytes);
if (direction == TransferDirection.Down)
{
ToxModel.Instance.FileSeek(friendNumber, fileNumber, transferredBytes);
ToxModel.Instance.FileControl(friendNumber, fileNumber, ToxFileControl.Resume);
}
return oneBrokenFileDownloadModel;
}
public new static async Task <OneFileTransferModel> CreateInstance(IDataService dataService, int friendNumber,
int fileNumber, string name,
long fileSizeInBytes, TransferDirection direction, StorageFile file, long transferredBytes = 0)
{
if (file != null)
{
dataService.FileTransferResumer.RecordTransfer(file, friendNumber, fileNumber, direction);
}
var fileStream = file == null ? null : await GetStreamBasedOnDirection(file, direction);
var oneBrokenFileDownloadModel = new OneBrokenFileTransferModel(dataService, friendNumber, fileNumber, name,
fileSizeInBytes, direction, fileStream, transferredBytes);
if (direction == TransferDirection.Down)
{
dataService.ToxModel.FileSeek(friendNumber, fileNumber, transferredBytes);
dataService.ToxModel.FileControl(friendNumber, fileNumber, ToxFileControl.Resume);
}
return(oneBrokenFileDownloadModel);
}