FTP文件服务器代码

文件操作的核心代码：

/// <summary>
/// FTP文件信息类（帮助进行文件的上传于下载）
/// </summary>
[Serializable()]
public class FileInfo
{
/// <summary>
/// 默认构造函数
/// </summary>
public FileInfo()
{
}
/// <summary>
///
/// </summary>
/// <param name="filename">文件名</param>
/// <param name="size">文件大小</param>
public FileInfo(string filename, long size)
{
this.Filename = filename;
this.Size = size;
}
/// <summary>
/// 文件名
/// </summary>
public string Filename = string.Empty;
/// <summary>
/// 文件大小
/// </summary>
public long Size = long.MinValue;
}
public delegate void PostedDataHandler(string user, byte[] data, string filepath);
public delegate void UpdateHandler(string user, string filepath);

[Serializable()]
public struct UploadData
{
public string Filename;
public byte[] File;
}
/// <summary>
/// 文件操作契约
/// </summary>
public interface IFTPServer
{
void Upload(string user, List<UploadData> files, string filepath);
void Download(string user, string filename, out byte[] file, string filepath);
void GetFiles(out List<FileInfo> files, string filepath);
void Connect(string user);
void Disconnect(string user);
void PostData(string user, byte[] data, string filepath);
event PostedDataHandler PostedData;
event UpdateHandler Update;

}
/// <summary>
/// 可远程操作的文件处理类
/// </summary>
public abstract class PostedData : System.MarshalByRefObject
{
public void Server_PostData(string user, byte[] data, string filepath)
{
this.ImplementedPostData(user, data, filepath);
}

public void Server_Update(string user, string filepath)
{
this.ImplementedUpdate(user, filepath);
}

public abstract void ImplementedPostData(string user, byte[] data, string filepath);

public abstract void ImplementedUpdate(string user, string filepath);
}
public class MachineInfo
{

public static string MachineName = Environment.MachineName;
public static IPEndPoint MachineIP;
public static List<FileInfo> Files = new List<FileInfo>();

/// <summary>
/// 获取文件的列表
/// </summary>
/// <param name="folder"></param>
public static void GetFiles(string folder)
{
if (!Directory.Exists(folder))
return;

foreach (string file in Directory.GetFiles(folder))
{
FileInfo info = new FileInfo(Path.GetFileName(file), (new System.IO.FileInfo(file).Length / 1024));
Files.Add(info);
}
}

/// <summary>
/// 过去机器的IP地址
/// </summary>
/// <returns></returns>
public static IPEndPoint GetMachineIP()
{
IPEndPoint result = null;

ManagementObjectSearcher searcher = new ManagementObjectSearcher("Select IPAddress From Win32_NetworkAdapterConfiguration");

foreach (ManagementObject obj in searcher.Get())
{
if (obj["IPAddress"] != null)
{
string[] ip = (string[])obj["IPAddress"];
result = new IPEndPoint(IPAddress.Parse(ip[0]), 9898);
break;
}
}

return result;
}

public static string GetJustIP()
{
string result = null;

ManagementObjectSearcher searcher = new ManagementObjectSearcher("Select IPAddress From Win32_NetworkAdapterConfiguration");

foreach (ManagementObject obj in searcher.Get())
{
if (obj["IPAddress"] != null)
{
string[] ip = (string[])obj["IPAddress"];
result = ip[0];
break;
}
}

return result;
}

}