/// <summary>
/// Processes a streaming file packet, building a file as bytes are received.
/// Files received must be content packages for security reasons.
/// </summary>
/// <param name="packet"></param>
private void ProcessStreamingFilePacket(StreamingFilePacket packet)
{
if (Path.GetExtension(packet.FileName) == FileExtensionFactory.GetFileExtension(FileTypeEnum.ContentPackage) && FileStreamStatus == FileStreamerStatusEnum.Downloading)
{
string filePath = DirectoryPaths.ContentPackageDirectoryPath + packet.FileName;
if (!File.Exists(filePath))
{
File.Create(filePath).Close();
}
LastReceivedFile = packet.FileName;
using (FileStream fileStream = new FileStream(filePath, FileMode.Append))
{
fileStream.Write(packet.FileBytes, 0, (int)packet.FileBytes.Length);
}
// If this is the end of the file, we need to remove it from the list
// and request the next file from the server.
if (packet.IsEndOfFile)
{
MissingFiles.Remove(packet.FileName);
if (MissingFiles.Count > 0)
{
FileStreamStatus = FileStreamerStatusEnum.Stopped;
RequestFileFromServer(MissingFiles[0]);
}
else
{
FileStreamStatus = FileStreamerStatusEnum.Complete;
}
}
}
}
/// <summary>
/// Handles streaming the next segment of files to users downloading content packages.
/// </summary>
private void StreamFilesToClients()
{
List<NetConnection> connectionList = FileTransferClients.Keys.ToList();
foreach (NetConnection currentConnection in connectionList)
{
FileTransferProgress clientProgress = FileTransferClients[currentConnection];
if (File.Exists(clientProgress.FilePath))
{
using (FileStream fileStream = new FileStream(clientProgress.FilePath, FileMode.Open))
{
bool isEndOfFile = false;
int numberOfBytesToSend = GameServerConfiguration.FileTransferBufferSize;
int numberOfBytesRemaining = (int)fileStream.Length - clientProgress.BytesSent;
if (numberOfBytesRemaining < GameServerConfiguration.FileTransferBufferSize)
{
numberOfBytesToSend = numberOfBytesRemaining;
isEndOfFile = true;
}
fileStream.Position = clientProgress.BytesSent;
byte[] bytesToSend = new byte[numberOfBytesToSend];
fileStream.Read(bytesToSend, 0, numberOfBytesToSend);
StreamingFilePacket packet = new StreamingFilePacket
{
FileName = Path.GetFileName(clientProgress.FilePath),
FileBytes = bytesToSend,
IsEndOfFile = isEndOfFile
};
Agent.SendPacket(packet, currentConnection, NetDeliveryMethod.ReliableOrdered);
clientProgress.BytesSent += numberOfBytesToSend;
// Remove client from streaming list if this was the last part of the file to be sent
if (clientProgress.BytesSent >= (int)fileStream.Length)
{
FileTransferClients.Remove(currentConnection);
}
}
}
}
}
