public static async Task <BITSUploadSession> Create(IFileProvider fileProvider, string fileName, long fragmentSizeLimit)
{
BITSUploadSession session = new BITSUploadSession(fileProvider, fileName, fragmentSizeLimit);
if (await fileProvider.Exists(fileName)) // case the file already exists
{
if (await fileProvider.IsDirectory(fileName)) // case the file is actually a directory
{
session._status_code = HttpStatusCode.Forbidden;
}
else if (SimpleBITSRequestHandler.Sessions.Any(_ => _.Value.FileName == fileName)) // case the file is being uploaded in another active session
{
session._status_code = HttpStatusCode.Conflict;
}
else // case file exists on server - we overwrite the file with the new upload
{
await session.OpenFile();
}
}
else // case file does not exist but its parent folder does exist - we create the file
{
await session.OpenFile();
}
/*else // case file does not exist nor its parent folder - we don't create the directory tree
* session._status_code = HttpStatusCode.Forbidden;*/
return(session);
}
Task <bool> TranscodeFileToFileProvider(BITSUploadSession session, IProgress <double> progress, CancellationToken ct) => Task.Run(async() =>