private void GetDownloadFileSize(FileTransmitState state)
{
var split = Encoding.UTF8.GetBytes("|")[0];
for (var i = 0; i < state.Buffer.Length; i++)
{
if (state.Buffer[i] == split)
{
//前三个字节分别是版本，响应代码，保留位
var fileLengthStr = Encoding.UTF8.GetString(state.Buffer, 3, i - 3);
int filelength;
if (int.TryParse(fileLengthStr, out filelength))
{
state.FileSize = filelength;
//重置Buffer为文件数据，去掉头部
//var newBuffer = new byte[state.Buffer.Length - i - 1];
var newBuffer = new byte[BufferSize];
var currBuffer = state.Buffer.Skip(i + 1).ToArray();
state.DealingByteCount = currBuffer.Length;
currBuffer.CopyTo(newBuffer, 0);
state.Buffer = newBuffer;
break;
}
else
{
throw new Exception("响应格式不正确");
}
}
}
}
/// <summary>
/// 启动异步读取文件
/// </summary>
/// <param name="state"></param>
private void BeginTransmit(FileTransmitState state)
{
try
{
var readFileBytes = 0;
var fileStream = new FileStream(state.FileInfo.FullName, FileMode.Open,
FileAccess.Read, FileShare.Read, BufferSize,
FileOptions.Asynchronous);
state.TransmitedByteCount = readFileBytes;
state.FileStream = fileStream;
state.Buffer = new byte[BufferSize];
//TODO buffer size
fileStream.BeginRead(state.Buffer, 0, BufferSize, AfterReadFileToBuffer,
//new FileTransmitState()
//{
// FileStream = fileStream,
// Buffer = new byte[BufferSize],
// Connection = state.Connection,
// TransmitedByteCount = readFileBytes,
// FileInfo = state.FileInfo,
// FileSize = state.FileInfo.Length,
//});
state);
}
catch (Exception e)
{
Logging.LogUsefulException(e);
}
}
public void Upload(string filePath, Action<FileTransmitState> callback)
{
if (string.IsNullOrEmpty(filePath)) filePath = GetFileName();
//var FileInfo = new FileInfo(filePath);
//var fName = FileInfo.Name;
//byte[] preBuffer;
//using (var memoryStream = new MemoryStream())
//{
// using (BinaryWriter writer = new BinaryWriter(memoryStream))
// {
// writer.Write(fName);
// //writer.Write(md5Hash);
// }
// preBuffer = memoryStream.ToArray();
//}
FileTransmitState state = null;
try
{
IPAddress ipAddress;
bool parsed = IPAddress.TryParse(Config.ServerAddress, out ipAddress);
if (!parsed)
{
IPHostEntry ipHostInfo = Dns.GetHostEntry(Config.ServerAddress);
ipAddress = ipHostInfo.AddressList[0];
}
Socket clientSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
var ipEndPoint = new IPEndPoint(ipAddress, Config.ServerPort);
var fileInfo = new FileInfo(filePath);
state = new FileTransmitState
{
Connection = clientSocket,
FileInfo = fileInfo,
FileSize = fileInfo.Length,
FileName = fileInfo.Name,
AfterTransmitCallback = callback
};
//clientSocket.BeginConnect(ipEndPoint, SendHandshakeMsg, new Tuple<string, Socket>(filePath, clientSocket));
state.Connection.BeginConnect(ipEndPoint, SendHandshakeMsg, state);
}
catch (Exception ex)
{
Logging.LogUsefulException(ex);
if (state != null)
{
try
{
state.Connection.Shutdown(SocketShutdown.Both);
state.Connection.Close();
}
catch (Exception e)
{
Logging.LogUsefulException(e);
}
}
}
}
public void Upload(Socket connection, byte[] handshakeMsg, int handshakeMsgLength)
{
if (closed)
{
return;
}
lastActivity = DateTime.Now;
var state = new FileTransmitState
{
Connection = connection,
};
try
{
byte[] response = { 1, 0x10, 0 };//Succeed msg
var fileInfoStr = Encoding.UTF8.GetString(handshakeMsg, 6, handshakeMsgLength - 6);
if (string.IsNullOrEmpty(fileInfoStr))
{
Logging.Error("FileInfo Error,response X'40'");
response[1] = 0x40; //Client Msg Error
}
else
{
var fileInfoArray = fileInfoStr.Split('|');
if (fileInfoArray.Length != 2)
{
Logging.Error("FileInfo Error,response X'40'");
response[1] = 0x40; //Client Msg Error
}
else
{
state.DealingByteCount = 0;
state.Buffer = null;
state.FileName = fileInfoArray[0];
state.FileSize = Convert.ToInt32(fileInfoArray[1]);
if (!Util.CheckDiskSpace(FileServerDir, state.FileSize))
{
response[1] = 0x51; //Not enough diskspace Msg Error
}
}
}
if (response[1] != 0x10)
{
state.Connection.BeginSend(response, 0, response.Length, 0, UploadFinishingCallBack, state);
return;
}
state.Connection.BeginSend(response, 0, response.Length, 0, UploadHandshakeSendCallback, state);
}
catch (Exception e)
{
Logging.Debug("握手过程中发生异常");
Logging.LogUsefulException(e);
state.Close();
}
}
public void Upload(Socket connection, byte[] handshakeMsg, int handshakeMsgLength)
{
if (closed)
{
return;
}
lastActivity = DateTime.Now;
var state = new FileTransmitState
{
Connection = connection,
};
try
{
byte[] response = { 1, 0x10, 0 };//Succeed msg
var fileInfoStr = Encoding.UTF8.GetString(handshakeMsg, 6, handshakeMsgLength - 6);
if (string.IsNullOrEmpty(fileInfoStr))
{
Logging.Error("FileInfo Error,response X'40'");
response[1] = 0x40; //Client Msg Error
}
else
{
var fileInfoArray = fileInfoStr.Split('|');
if (fileInfoArray.Length != 2)
{
Logging.Error("FileInfo Error,response X'40'");
response[1] = 0x40; //Client Msg Error
}
else
{
state.DealingByteCount = 0;
state.Buffer = null;
state.FileName = fileInfoArray[0];
state.FileSize = Convert.ToInt32(fileInfoArray[1]);
if (!Util.CheckDiskSpace(FileServerDir, state.FileSize))
{
response[1] = 0x51; //Not enough diskspace Msg Error
}
}
}
if (response[1] != 0x10)
{
state.Connection.BeginSend(response, 0, response.Length, 0, UploadFinishingCallBack, state);
return;
}
state.Connection.BeginSend(response, 0, response.Length, 0, UploadHandshakeSendCallback, state);
}
catch (Exception e)
{
Logging.Debug("握手过程中发生异常");
Logging.LogUsefulException(e);
state.Close();
}
}
private void Close(FileTransmitState transmitState)
{
lock (this)
{
if (closed)
{
return;
}
closed = true;
}
transmitState?.Close();
}
private void WriteFile(FileTransmitState state)
{
if (state.FileStream == null)
{
var filePath = Path.Combine(DownloadFileDir, state.FileName);
CreateDir(filePath);
var writer = new FileStream(filePath, FileMode.Create, FileAccess.Write, FileShare.Write, BufferSize,
FileOptions.Asynchronous);
state.FileInfo = new FileInfo(filePath);
state.FileStream = writer;
}
state.FileStream.BeginWrite(state.Buffer, 0,
state.DealingByteCount, DownLoadWriteFileCallBack, state);
}
public void DownLoad(string filePath, Action <FileTransmitState> callback)
{
if (string.IsNullOrEmpty(filePath))
{
filePath = GetFileName();
}
FileTransmitState state = null;
try
{
IPAddress ipAddress;
bool parsed = IPAddress.TryParse(Config.ServerAddress, out ipAddress);
if (!parsed)
{
IPHostEntry ipHostInfo = Dns.GetHostEntry(Config.ServerAddress);
ipAddress = ipHostInfo.AddressList[0];
}
var clientSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
var ipEndPoint = new IPEndPoint(ipAddress, Config.ServerPort);
var fileInfo = new FileInfo(filePath);
state = new FileTransmitState
{
Connection = clientSocket,
FileInfo = fileInfo,
//FileSize = fileInfo.Length,
FileName = fileInfo.Name,
AfterTransmitCallback = callback
};
state.Connection.BeginConnect(ipEndPoint, SendDownloadHandshakeMsg, state);
}
catch (Exception ex)
{
Logging.LogUsefulException(ex);
if (state != null)
{
try
{
state.Connection.Shutdown(SocketShutdown.Both);
state.Connection.Close();
}
catch (Exception e)
{
Logging.LogUsefulException(e);
}
}
}
}
/// <summary>
/// 文件下载服务处理
/// </summary>
/// <param name="connection"></param>
/// <param name="handshakeMsg"></param>
/// <param name="handshakeMsgLength"></param>
public void Download(Socket connection, byte[] handshakeMsg, int handshakeMsgLength)
{
if (closed)
{
return;
}
lastActivity = DateTime.Now;
var state = new FileTransmitState
{
Connection = connection,
};
try
{
List<byte> response = new List<byte> { 1, 0x10, 0 };//Succeed msg
var fileInfoStr = Encoding.UTF8.GetString(handshakeMsg, 6, handshakeMsgLength - 6);
if (string.IsNullOrEmpty(fileInfoStr))
{
Logging.Error("FileInfo Error,response X'40'");
response[1] = 0x41; //Client Msg Error
}
else
{
var path = Path.Combine(FileServerDir, fileInfoStr);
if (!File.Exists(path))
{
response[1] = 0x44; //File Not Found
}
else
{
state.FileInfo = new FileInfo(path);
state.FileSize = state.FileInfo.Length;
state.DealingByteCount = 0;
state.FileName = state.FileInfo.Name;
//使用“|做分隔符”
var fileLengthBytes = Encoding.UTF8.GetBytes(state.FileInfo.Length + "|");
response.AddRange(fileLengthBytes);
state.Buffer = new byte[BufferSize];
}
//config.FileSize = Convert.ToInt32(fileInfoArray[1]);
}
state.Connection.Send(response.ToArray());
if (response[1] != 0x10)
{
//Error
state.Close();
}
else
{
state.Connection.BeginReceive(state.Buffer, 0, state.Buffer.Length, SocketFlags.None,
After2ndHandshakeCallback, state);
}
}
catch (Exception e)
{
Logging.Debug("握手过程中发生异常");
Logging.LogUsefulException(e);
state.Close();
}
}
private void Close(FileTransmitState transmitState)
{
lock (this)
{
if (closed)
{
return;
}
closed = true;
}
transmitState?.Close();
}
private void WriteFile(FileTransmitState state)
{
if (state.FileStream == null)
{
var filePath = Path.Combine(DownloadFileDir, state.FileName);
CreateDir(filePath);
var writer = new FileStream(filePath, FileMode.Create, FileAccess.Write, FileShare.Write, BufferSize,
FileOptions.Asynchronous);
state.FileInfo = new FileInfo(filePath);
state.FileStream = writer;
}
state.FileStream.BeginWrite(state.Buffer, 0,
state.DealingByteCount, DownLoadWriteFileCallBack, state);
}
private void GetDownloadFileSize(FileTransmitState state)
{
var split = Encoding.UTF8.GetBytes("|")[0];
for (var i = 0; i < state.Buffer.Length; i++)
{
if (state.Buffer[i] == split)
{
//前三个字节分别是版本，响应代码，保留位
var fileLengthStr = Encoding.UTF8.GetString(state.Buffer, 3, i - 3);
int filelength;
if (int.TryParse(fileLengthStr, out filelength))
{
state.FileSize = filelength;
//重置Buffer为文件数据，去掉头部
//var newBuffer = new byte[state.Buffer.Length - i - 1];
var newBuffer = new byte[BufferSize];
var currBuffer = state.Buffer.Skip(i + 1).ToArray();
state.DealingByteCount = currBuffer.Length;
currBuffer.CopyTo(newBuffer, 0);
state.Buffer = newBuffer;
break;
}
else
{
throw new Exception("响应格式不正确");
}
}
}
}
public void DownLoad(string filePath, Action<FileTransmitState> callback)
{
if (string.IsNullOrEmpty(filePath)) filePath = GetFileName();
FileTransmitState state = null;
try
{
IPAddress ipAddress;
bool parsed = IPAddress.TryParse(Config.ServerAddress, out ipAddress);
if (!parsed)
{
IPHostEntry ipHostInfo = Dns.GetHostEntry(Config.ServerAddress);
ipAddress = ipHostInfo.AddressList[0];
}
var clientSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
var ipEndPoint = new IPEndPoint(ipAddress, Config.ServerPort);
var fileInfo = new FileInfo(filePath);
state = new FileTransmitState
{
Connection = clientSocket,
FileInfo = fileInfo,
//FileSize = fileInfo.Length,
FileName = fileInfo.Name,
AfterTransmitCallback = callback
};
state.Connection.BeginConnect(ipEndPoint, SendDownloadHandshakeMsg, state);
}
catch (Exception ex)
{
Logging.LogUsefulException(ex);
if (state != null)
{
try
{
state.Connection.Shutdown(SocketShutdown.Both);
state.Connection.Close();
}
catch (Exception e)
{
Logging.LogUsefulException(e);
}
}
}
}
/// <summary>
/// 启动异步读取文件
/// </summary>
/// <param name="state"></param>
private void BeginTransmit(FileTransmitState state)
{
try
{
var readFileBytes = 0;
var fileStream = new FileStream(state.FileInfo.FullName, FileMode.Open,
FileAccess.Read, FileShare.Read, BufferSize,
FileOptions.Asynchronous);
state.TransmitedByteCount = readFileBytes;
state.FileStream = fileStream;
state.Buffer = new byte[BufferSize];
//TODO buffer size
fileStream.BeginRead(state.Buffer, 0, BufferSize, AfterReadFileToBuffer,
//new FileTransmitState()
//{
// FileStream = fileStream,
// Buffer = new byte[BufferSize],
// Connection = state.Connection,
// TransmitedByteCount = readFileBytes,
// FileInfo = state.FileInfo,
// FileSize = state.FileInfo.Length,
//});
state);
}
catch (Exception e)
{
Logging.LogUsefulException(e);
}
}
/// <summary>
/// 文件下载服务处理
/// </summary>
/// <param name="connection"></param>
/// <param name="handshakeMsg"></param>
/// <param name="handshakeMsgLength"></param>
public void Download(Socket connection, byte[] handshakeMsg, int handshakeMsgLength)
{
if (closed)
{
return;
}
lastActivity = DateTime.Now;
var state = new FileTransmitState
{
Connection = connection,
};
try
{
List <byte> response = new List <byte> {
1, 0x10, 0
}; //Succeed msg
var fileInfoStr = Encoding.UTF8.GetString(handshakeMsg, 6, handshakeMsgLength - 6);
if (string.IsNullOrEmpty(fileInfoStr))
{
Logging.Error("FileInfo Error,response X'40'");
response[1] = 0x41; //Client Msg Error
}
else
{
var path = Path.Combine(FileServerDir, fileInfoStr);
if (!File.Exists(path))
{
response[1] = 0x44; //File Not Found
}
else
{
state.FileInfo = new FileInfo(path);
state.FileSize = state.FileInfo.Length;
state.DealingByteCount = 0;
state.FileName = state.FileInfo.Name;
//使用“|做分隔符”
var fileLengthBytes = Encoding.UTF8.GetBytes(state.FileInfo.Length + "|");
response.AddRange(fileLengthBytes);
state.Buffer = new byte[BufferSize];
}
//config.FileSize = Convert.ToInt32(fileInfoArray[1]);
}
state.Connection.Send(response.ToArray());
if (response[1] != 0x10)
{
//Error
state.Close();
}
else
{
state.Connection.BeginReceive(state.Buffer, 0, state.Buffer.Length, SocketFlags.None,
After2ndHandshakeCallback, state);
}
}
catch (Exception e)
{
Logging.Debug("握手过程中发生异常");
Logging.LogUsefulException(e);
state.Close();
}
}
public void Upload(string filePath, Action <FileTransmitState> callback)
{
if (string.IsNullOrEmpty(filePath))
{
filePath = GetFileName();
}
//var FileInfo = new FileInfo(filePath);
//var fName = FileInfo.Name;
//byte[] preBuffer;
//using (var memoryStream = new MemoryStream())
//{
// using (BinaryWriter writer = new BinaryWriter(memoryStream))
// {
// writer.Write(fName);
// //writer.Write(md5Hash);
// }
// preBuffer = memoryStream.ToArray();
//}
FileTransmitState state = null;
try
{
IPAddress ipAddress;
bool parsed = IPAddress.TryParse(Config.ServerAddress, out ipAddress);
if (!parsed)
{
IPHostEntry ipHostInfo = Dns.GetHostEntry(Config.ServerAddress);
ipAddress = ipHostInfo.AddressList[0];
}
Socket clientSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
var ipEndPoint = new IPEndPoint(ipAddress, Config.ServerPort);
var fileInfo = new FileInfo(filePath);
state = new FileTransmitState
{
Connection = clientSocket,
FileInfo = fileInfo,
FileSize = fileInfo.Length,
FileName = fileInfo.Name,
AfterTransmitCallback = callback
};
//clientSocket.BeginConnect(ipEndPoint, SendHandshakeMsg, new Tuple<string, Socket>(filePath, clientSocket));
state.Connection.BeginConnect(ipEndPoint, SendHandshakeMsg, state);
}
catch (Exception ex)
{
Logging.LogUsefulException(ex);
if (state != null)
{
try
{
state.Connection.Shutdown(SocketShutdown.Both);
state.Connection.Close();
}
catch (Exception e)
{
Logging.LogUsefulException(e);
}
}
}
}
