/// <summary>
/// 上传一个文件
/// </summary>
/// <param name="strFileName">本地文件名</param>
public void Put(string strFileName, MemoryStream ms)
{
if (!bConnected)
{
Connect();
}
Socket socketData = CreateDataSocket();
SendCommand("STOR " + Path.GetFileName(strFileName));
if (!(iReplyCode == 125 || iReplyCode == 150))
{
throw new IOException(strReply.Substring(4));
}
//FileStream input = new FileStream(strFileName, FileMode.Open);
//int iBytes = 0;
//while ((iBytes = input.Read(buffer, 0, buffer.Length)) > 0)
//{
// socketData.Send(buffer, iBytes, 0);
//}
//input.Close();
int iBytes = 0;
while ((iBytes = ms.Read(buffer, 0, buffer.Length)) > 0)
{
socketData.Send(buffer, iBytes, 0);
}
if (socketData.Connected)
{
socketData.Close();
}
if (!(iReplyCode == 226 || iReplyCode == 250))
{
ReadReply();
if (!(iReplyCode == 226 || iReplyCode == 250))
{
throw new IOException(strReply.Substring(4));
}
}
Logger.Trace(LogInfoType.EROR, "上传文件：" + strFileName + ",OK.", "FTP", LogCategory.I);
FrmMainController.add_log_info(LogInfoType.EROR, "上传文件：" + strFileName + ",OK.", "FTP", LogCategory.I);
}
/// <summary>
/// 建立进行数据连接的socket
/// </summary>
/// <returns>数据连接socket</returns>
private Socket CreateDataSocket()
{
SendCommand("PASV");
if (iReplyCode != 227)
{
throw new IOException(strReply.Substring(4));
}
int index1 = strReply.IndexOf('(');
int index2 = strReply.IndexOf(')');
string ipData = strReply.Substring(index1 + 1, index2 - index1 - 1);
int[] parts = new int[6];
int len = ipData.Length;
int partCount = 0;
string buf = "";
for (int i = 0; i < len && partCount <= 6; i++)
{
char ch = Char.Parse(ipData.Substring(i, 1));
if (Char.IsDigit(ch))
{
buf += ch;
}
else if (ch != ',')
{
throw new IOException("Malformed PASV strReply: " +
strReply);
}
if (ch == ',' || i + 1 == len)
{
try
{
parts[partCount++] = Int32.Parse(buf);
buf = "";
}
catch (Exception ee)
{
Logger.Trace(LogInfoType.EROR, ee.Message, "FTP", LogCategory.I);
FrmMainController.add_log_info(LogInfoType.EROR, ee.Message, "FTP", LogCategory.I);
throw new IOException("Malformed PASV strReply: " + strReply);
}
}
}
string ipAddress = parts[0] + "." + parts[1] + "." + parts[2] + "." + parts[3];
int port = (parts[4] << 8) + parts[5];
Socket s = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
IPEndPoint ep = new IPEndPoint(IPAddress.Parse(ipAddress), port);
try
{
s.Connect(ep);
}
catch (Exception ee)
{
Logger.Trace(LogInfoType.EROR, ee.Message, "FTP", LogCategory.I);
FrmMainController.add_log_info(LogInfoType.EROR, ee.Message, "FTP", LogCategory.I);
//throw new IOException("Can't connect to remote server");
return(null);
}
return(s);
}
/// <summary>
/// 下载一个文件
/// </summary>
/// <param name="strRemoteFileName">要下载的文件名</param>
/// <param name="strFolder">本地目录(不得以\结束)</param>
/// <param name="strLocalFileName">保存在本地时的文件名</param>
public int Get(string strRemoteFileName, string strFolder, string strLocalFileName)
{
if (!bConnected)
{
Connect();
}
SetTransferType(TransferType.Binary);
if (strLocalFileName.Equals(""))
{
strLocalFileName = strRemoteFileName;
}
//if (!File.Exists(strLocalFileName))
//{
// Stream st = File.Create(strLocalFileName);
// st.Close();
//}
FileStream output = new FileStream(strFolder + "\\" + strLocalFileName, FileMode.Create);
Socket socketData = CreateDataSocket();
SendCommand("RETR " + strRemoteFileName);
if (!(iReplyCode == 150 || iReplyCode == 125 ||
iReplyCode == 226 || iReplyCode == 250))
{
//throw new IOException(strReply.Substring(4));
return(-1);
}
while (true)
{
int iBytes = socketData.Receive(buffer, buffer.Length, 0);
output.Write(buffer, 0, iBytes);
if (iBytes <= 0)
{
break;
}
}
output.Close();
if (socketData.Connected)
{
socketData.Close();
}
if (!(iReplyCode == 226 || iReplyCode == 250))
{
ReadReply();
if (!(iReplyCode == 226 || iReplyCode == 250))
{
//throw new IOException(strReply.Substring(4));
return(-1);
}
}
Logger.Trace(LogInfoType.INFO, "下载文件：" + strRemoteFileName + ",OK.", "FTP", LogCategory.I);
FrmMainController.add_log_info(LogInfoType.INFO, "下载文件：" + strRemoteFileName + ",OK.", "FTP", LogCategory.I);
return(0);
}
/// <summary>
/// 建立连接
/// </summary>
public void Connect()
{
string errInfo = "";
socketControl = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
IPEndPoint ep = new IPEndPoint(IPAddress.Parse(RemoteHost), strRemotePort);
// 链接
try
{
socketControl.Connect(ep);
}
catch (Exception ee)
{
Logger.Trace(LogInfoType.EROR, ee.Message, "FTP", LogCategory.I);
FrmMainController.add_log_info(LogInfoType.EROR, ee.Message, "FTP", LogCategory.I);
FrmMainController.add_log_info(LogInfoType.EROR, "Couldn't connect to remote server", "FTP", LogCategory.I);
//throw new IOException("Couldn't connect to remote server");
bConnected = false;
return;
}
IPAddress remote_ip = ((System.Net.IPEndPoint)socketControl.RemoteEndPoint).Address;
int remote_port = ((System.Net.IPEndPoint)socketControl.RemoteEndPoint).Port;
// 获取应答码
ReadReply();
if (iReplyCode != SERVER_READY_OK)
{
DisConnect();
throw new IOException(strReply.Substring(4));
}
// 登陆
SendCommand("USER " + strRemoteUser);
if (!(iReplyCode == REQUIRE_PASSWD || iReplyCode == LOG_INTERNET))
{
CloseSocketConnect();//关闭连接
errInfo = string.Format("连接到FTP server {0}:{1} ,FAILED.", RemoteHost, strRemotePort);
Logger.Trace(LogInfoType.EROR, errInfo, "FTP", LogCategory.I);
FrmMainController.add_log_info(LogInfoType.EROR, errInfo, "FTP", LogCategory.I);
bConnected = false;
return;
}
if (iReplyCode != LOG_INTERNET)
{
SendCommand("PASS " + strRemotePass);
if (!(iReplyCode == LOG_INTERNET || iReplyCode == COMMAND_NO_EXECUTE))
{
CloseSocketConnect();//关闭连接
//throw new IOException(strReply.Substring(4));
errInfo = string.Format("连接到FTP server {0}:{1} ,FAILED.", RemoteHost, strRemotePort);
Logger.Trace(LogInfoType.EROR, errInfo, "FTP", LogCategory.I);
FrmMainController.add_log_info(LogInfoType.EROR, errInfo, "FTP", LogCategory.I);
bConnected = false;
return;
}
}
errInfo = string.Format("连接到FTP server {0}:{1} ,OK.", RemoteHost, strRemotePort);
bConnected = true;
Logger.Trace(LogInfoType.INFO, errInfo, "FTP", LogCategory.I);
FrmMainController.add_log_info(LogInfoType.INFO, errInfo, "FTP", LogCategory.I);
// 切换到目录
ChDir(strRemotePath);
}
