private void ResponseUploadPacket(SocketResponder responder, HB32Header header, byte[] bytes)
{
int i1 = 0;
string err_msg = "";
try
{
if ((GetIdentity(responder) & SocketIdentity.WriteFile) == 0)
{
throw new Exception("Socket not authenticated.");
}
if (!ServerFileSet.ContainsKey(header.I1))
{
i1 = 1;
throw new Exception("No fsid key in available server filestream");
}
SocketServerFileStreamInfo fs_info = ServerFileSet[header.I1];
FileStream fs = fs_info.FStream;
/// I2 == -1 则关闭 FileStream
if (header.I2 == -1)
{
fs.Close();
ServerFileSet.Remove(header.I1);
Log("Released file id : " + header.I1.ToString(), LogLevel.Info);
return;
}
/// FileStream 写入
long begin = (long)header.I2 * HB32Encoding.DataSize;
lock (fs)
{
fs.Seek(begin, SeekOrigin.Begin);
fs.Write(bytes, 0, header.ValidByteLength);
}
fs_info.LastTime = DateTime.Now;
}
catch (Exception ex)
{
err_msg = ex.Message;
Log("ResponseUploadPacket exception : " + err_msg, LogLevel.Warn);
}
if (string.IsNullOrEmpty(err_msg))
{
responder.SendHeader(SocketPacketFlag.UploadPacketResponse);
}
else
{
responder.SendHeader(SocketPacketFlag.UploadDenied, i1: i1);
}
}
private void ResponseDownloadPacket(SocketResponder responder, HB32Header header)
{
byte[] responseBytes = new byte[1];
string err_msg = "";
int i1 = 0;
try
{
if ((GetIdentity(responder) & SocketIdentity.ReadFile) == 0)
{
throw new Exception("Socket not authenticated.");
}
if (!ServerFileSet.ContainsKey(header.I1))
{
i1 = 1;
throw new Exception("No fsid key in available server filestream");
}
SocketServerFileStreamInfo fs_info = ServerFileSet[header.I1];
FileStream fs = fs_info.FStream;
/// I2 == -1 则关闭 FileStream
if (header.I2 == -1)
{
fs.Close();
ServerFileSet.Remove(header.I1);
Log("Released file id : " + header.I1.ToString(), LogLevel.Info);
return;
}
/// 确定 Server 端 FileStream 读起点和 byte 长度
long begin = (long)header.I2 * HB32Encoding.DataSize;
int length = HB32Encoding.DataSize; /// <- 读/写 byte长度
if (begin + HB32Encoding.DataSize > fs_info.Length)
{
length = (int)(fs_info.Length - begin);
}
responseBytes = new byte[length];
/// 读取 FileStream bytes
lock (fs)
{
fs.Seek(begin, SeekOrigin.Begin);
fs.Read(responseBytes, 0, length);
}
fs_info.LastTime = DateTime.Now;
}
catch (Exception ex)
{
err_msg = ex.Message;
Log("ResponseDownloadPacket exception : " + err_msg, LogLevel.Warn);
}
if (string.IsNullOrEmpty(err_msg))
{
responder.SendBytes(SocketPacketFlag.DownloadPacketResponse, responseBytes);
}
else
{
responder.SendBytes(SocketPacketFlag.DownloadDenied, err_msg, i1: i1);
}
}
