private async Task ProcessFileReqAck(ReqAck mFileReqAck, Metadata mMetadata)
{
//see if received accepted the file transmition request
bool acceptedReq = mFileReqAck.AcceptedFile;
FileSentReq fileSendReq = GetSendFileReqFromMeta(mMetadata);
if (!acceptedReq)
{
//didn't accept request
sendFileRequests.Remove(fileSendReq);
return;
}
//start sending the file parts
foreach (FileTransReq fileTrans in fileSendReq.FileTransReqs)
{
//for each file
while (fileSendReq.FileHasMoreParts(fileTrans))
{
//send all its parts
FilePartObj filePart = await fileSendReq.GetNextFilePart(fileTrans);
await ObjectManager.SendAsyncTCP(fileSendReq.targetIpAddress, filePart);
//send update event
FileProgUpdate?.Invoke(this, new FileTransferEventArgs(fileTrans, TransDirrection.sending));
}
}
}
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);
}
private async void ObjManager_objReceived(object sender, ObjReceivedEventArgs e)
{
BObject bObj = e.Obj;
Metadata metadata = bObj.GetMetadata();
ObjReceived?.Invoke(this, e);
string objType = bObj.GetType();
switch (objType)
{
case "FilePartObj":
FilePartObj filePart = e.Obj.GetObject <FilePartObj>();
await ProcessFilePart(filePart, metadata);
break;
/*
* case "FileAck":
* FileAck ackMsg = e.Obj.GetObject<FileAck>();
* await ProcessAckMessage(ackMsg, metadata);
* break;
*/
case "FileReqMeta":
FileReqMeta fileRequestMetadata = e.Obj.GetObject <FileReqMeta>();
await ProcessIncomingFilesRequest(fileRequestMetadata, metadata);
break;
case "ReqAck":
ReqAck fileReqAck = e.Obj.GetObject <ReqAck>();
await ProcessFileReqAck(fileReqAck, metadata);
break;
default:
break;
}
}