private async Task <FileReceiveReq> CreateFileReceiveReq(FileReqMeta fileRequest, Metadata mMetadata)
{
//open stream for all files being received
List <FileTransReq> fileTrans = new List <FileTransReq>();
foreach (FileMeta file in fileRequest.Files)
{
FileTransReq fileTran = await SetupTransmitionForNewFile(file, fileRequest.BufferSize);
fileTrans.Add(fileTran);
}
FileReceiveReq fileReceivedReq = new FileReceiveReq(fileTrans, mMetadata.SourceIp);
return(fileReceivedReq);
}
//called when a file part is received
private async Task ProcessFilePart(FilePartObj filePart, Metadata metadata)
{
//check if file part is valid
if (filePart == null)
{
throw new Exception("filePart has not been set.");
}
//find file recieve request
FileReceiveReq fileReceived = GetReceivedFileReqFromMeta(metadata);
FileTransReq fileTrans = fileReceived.GetFileTransReqFromFileMeta(filePart.FileMetadata);
//dump file data to disk
await fileReceived.WriteFilePartToFile(filePart);
//log incoming file
FileProgUpdate?.Invoke(this, new FileTransferEventArgs(fileTrans, TransDirrection.receiving));
}
private async Task ProcessIncomingFilesRequest(FileReqMeta fileRequest, Metadata mMetadata)
{
//determine whether or not to accept the incoming file request
bool validFileRequest = IsValidFileRequest(fileRequest, mMetadata);
FileReceiveReq fileReceiveReq = null;
if (validFileRequest)
{
//add to a file recieved request
fileReceiveReq = await CreateFileReceiveReq(fileRequest, mMetadata);
receivedFileRequests.Add(fileReceiveReq);
}
//send message back to sender
ReqAck fileRequestResp = new ReqAck(validFileRequest);
await ObjectManager.SendAsyncTCP(mMetadata.SourceIp, fileRequestResp);
}
