private ZipInfo CreateZip(string pathFile)
{
string zipLocation = String.Empty;
try
{
string zipToSend = RandomStr() + Constants.ZIP_EXTENSION;
FileAttributes attr = File.GetAttributes(pathFile);
zipLocation = App.defaultFolder + "\\" + zipToSend;
bool isFile;
DateTime lastWrite;
if ((attr & FileAttributes.Directory) == FileAttributes.Directory)
{
ZipFile.CreateFromDirectory(pathFile, zipLocation, CompressionLevel.NoCompression, false);
isFile = false;
DirectoryInfo dInfo = new DirectoryInfo(pathFile);
lastWrite = LastestModified(dInfo, dInfo.LastWriteTime);
}
else
{
ZipArchive newFile = ZipFile.Open(zipLocation, ZipArchiveMode.Create);
newFile.CreateEntryFromFile(pathFile, Path.GetFileName(pathFile), CompressionLevel.NoCompression);
newFile.Dispose();
FileInfo fInfo = new FileInfo(pathFile);
isFile = true;
lastWrite = fInfo.LastWriteTime;
}
long zipLength = new FileInfo(zipLocation).Length;
ZipInfo zipInfo = new ZipInfo(zipToSend, zipLocation, zipLength, isFile, lastWrite);
cachingFiles.Add(pathFile, zipInfo);
return(zipInfo);
}
catch
{
if (!String.IsNullOrEmpty(zipLocation))
{
File.Delete(zipLocation);
}
return(null);
}
}
public void SendFile(string ipAddr, string pathFile, Socket sender, ZipInfo zipInfo)
{
sender.SendTimeout = 2500;
sender.ReceiveTimeout = 1000 * 5 * 60;
string fileName = Path.GetFileName(pathFile);
byte[] fileNameByte = Encoding.UTF8.GetBytes(fileName);
byte[] fileNameLength = BitConverter.GetBytes(fileNameByte.Length);
long fileLength = zipInfo.IsFile ? new FileInfo(pathFile).Length : DirSize(new DirectoryInfo(pathFile));
byte[] command = new byte[Constants.FILE_COMMAND.Length];
string zipToSend = zipInfo.ZipToSend;
string zipLocation = zipInfo.ZipLocation;
command = zipInfo.IsFile ? Encoding.ASCII.GetBytes(Constants.FILE_COMMAND) : Encoding.ASCII.GetBytes(Constants.DIR_COMMAND);
long zipLength = zipInfo.ZipLength;
IPEndPoint remoteEP = new IPEndPoint(IPAddress.Parse(ipAddr), Constants.PORT_TCP);
FileStream fs = null;
try
{
sender.Connect(remoteEP);
int sent = 0;
byte[] fileLine = Combine(command, fileNameLength, fileNameByte, BitConverter.GetBytes(fileLength));
sent = sender.Send(fileLine, 0, fileLine.Length, SocketFlags.None, out SocketError sockError);
if (sockError != SocketError.Success)
{
throw new SocketException();
}
UpdateFileState?.Invoke(sender, Constants.FILE_STATE.ACCEPTANCE);
byte[] responseFromServer = new byte[Constants.ACCEPT_FILE.Length];
sender.Receive(responseFromServer, 0, responseFromServer.Length, SocketFlags.None, out sockError);
if (!sender.Connected)
{
return;
}
if (sockError != SocketError.Success)
{
throw new SocketException();
}
string response = Encoding.ASCII.GetString(responseFromServer);
if (String.Compare(response, Constants.DECLINE_FILE) == 0)
{
FileRejected?.Invoke(fileName, NeighborProtocol.GetInstance.GetUserFromIp(ipAddr), Constants.NOTIFICATION_STATE.REFUSED);
UpdateFileState?.Invoke(sender, Constants.FILE_STATE.REJECTED);
ReleaseResources(sender);
return;
}
byte[] zipLine = Combine(Encoding.ASCII.GetBytes(Constants.ZIP_COMMAND), BitConverter.GetBytes(zipToSend.Length),
Encoding.ASCII.GetBytes(zipToSend), BitConverter.GetBytes(zipLength));
sent = sender.Send(zipLine, 0, zipLine.Length, SocketFlags.None, out sockError);
int received = 0;
byte[] data = new byte[Constants.DECLINE_FILE.Length];
received = sender.Receive(data, 0, Constants.DECLINE_FILE.Length, SocketFlags.None, out sockError);
if (!sender.Connected)
{
return;
}
if (received == 0 || sockError != SocketError.Success)
{
throw new SocketException();
}
if (string.Compare(Encoding.ASCII.GetString(data), Constants.DECLINE_FILE) == 0)
{
UpdateFileState?.Invoke(sender, Constants.FILE_STATE.ERROR);
FileRejected?.Invoke(fileName, NeighborProtocol.GetInstance.GetUserFromIp(ipAddr), Constants.NOTIFICATION_STATE.EXISTS);
return;
}
long temp = 0, percentage = 0;
fs = File.Open(zipLocation, FileMode.Open, FileAccess.Read, FileShare.Read);
data = new byte[Constants.PACKET_SIZE];
int readBytes = 0;
DateTime now = DateTime.Now;
int inviati = 0;
List <double> transferRatesList = new List <double>();
while (temp < zipLength)
{
if (zipLength - temp > Constants.PACKET_SIZE)
{
readBytes = fs.Read(data, 0, Constants.PACKET_SIZE);
}
else
{
readBytes = fs.Read(data, 0, (int)(zipLength - temp));
}
sent = sender.Send(data, 0, readBytes, SocketFlags.None, out sockError);
if (sockError == SocketError.Success)
{
temp += sent;
inviati += sent;
ulong temporary = (ulong)temp * 100;
int tempPercentage = (int)(temporary / (ulong)zipLength);
if (tempPercentage > percentage)
{
string remainingTimeString = null;
var elapsedSeconds = (DateTime.Now - now).TotalSeconds;
if (elapsedSeconds >= 1)
{
var transferRate = inviati / elapsedSeconds;
transferRatesList.Add(transferRate);
if (transferRatesList.Count == 6)
{
transferRatesList.RemoveAt(0);
}
double avg = transferRatesList.Average();
var remainingTime = (zipLength - temp) / avg;
inviati = 0;
now = DateTime.Now;
TimeSpan t = TimeSpan.FromSeconds(remainingTime);
remainingTimeString = string.Format("{0:D2}h:{1:D2}m:{2:D2}s", t.Hours, t.Minutes, t.Seconds);
}
UpdateProgress?.Invoke(fileName, sender, tempPercentage, remainingTimeString);
percentage = tempPercentage;
}
}
else if (sockError == SocketError.Shutdown)
{
return;
}
else
{
throw new SocketException();
}
}
}
catch (SocketException e)
{
Console.WriteLine("Sender");
var st = new StackTrace(e, true);
// Get the top stack frame
var frame = st.GetFrame(st.FrameCount - 1);
// Get the line number from the stack frame
var line = frame.GetFileLineNumber();
Console.WriteLine("Error at line {0} ", line);
UpdateFileState?.Invoke(sender, Constants.FILE_STATE.ERROR);
FileRejected?.Invoke(fileName, ipAddr, Constants.NOTIFICATION_STATE.SEND_ERROR);
}
catch (Exception e)
{
Console.WriteLine("Sender");
var st = new StackTrace(e, true);
// Get the top stack frame
var frame = st.GetFrame(st.FrameCount - 1);
// Get the line number from the stack frame
var line = frame.GetFileLineNumber();
Console.WriteLine("Error at line {0} ", line);
UpdateFileState?.Invoke(sender, Constants.FILE_STATE.ERROR);
FileRejected?.Invoke(fileName, ipAddr, Constants.NOTIFICATION_STATE.FILE_ERROR_SEND);
}
finally
{
if (fs != null)
{
fs.Close();
}
ReleaseResources(sender);
}
}
