WPF版的FTP小工具

  发一个自己以前做的一个FTP小工具，主要的功能是连接FTP服务器，读取本地的磁盘信息，连接成功后显示复去去上的文件的信息

下图是软件的截图，

:左侧的是一个ListView，展示本地磁盘的相关信息，获取文件和文件夹的相关信息，核心代码 

 string[] dirs = Directory.GetDirectories(path); string[] files = Directory.GetFiles(path);

其中文件的名称前面有图标，这个是用了Window中的一些DLL

下面为这个类的代码：

public class Win32
        {
            public const uint SHGFI_ICON = 0x100;
            public const uint SHGFI_LARGEICON = 0x0; // 'Large icon
            public const uint SHGFI_SMALLICON = 0x1; // 'Small icon
            [DllImport("shell32.dll", EntryPoint = "ExtractIcon")]
            public static extern int ExtractIcon(IntPtr hInst, string lpFileName, int nIndex);
            [DllImport("shell32.dll", EntryPoint = "SHGetFileInfo")]
            public static extern IntPtr SHGetFileInfo(string pszPath, uint dwFileAttribute, ref SHFILEINFO psfi, uint cbSizeFileInfo, uint Flags);
            [DllImport("User32.dll", EntryPoint = "DestroyIcon")]
            public static extern int DestroyIcon(IntPtr hIcon);
            [DllImport("shell32.dll")]
            public static extern uint ExtractIconEx(string lpszFile, int nIconIndex, int[] phiconLarge, int[] phiconSmall, uint nIcons);
            [StructLayout(LayoutKind.Sequential)]
            public struct SHFILEINFO
            {
                public IntPtr hIcon;
                public IntPtr iIcon;
                public uint dwAttributes;
                [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 260)]
                public string szDisplayName;
                [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 80)]
                public string szTypeName;
            }
        }

这个类导入了一些Window的一些DLL

下面这个方法是获取获取服务器图标：

public Icon GetIconByFileType(string fileType, bool isLarge)
        {
            if (fileType == null || fileType.Equals(string.Empty)) return null;
            RegistryKey regVersion = null;
            string regFileType = null;
            string regIconString = null;
            string systemDirectory = Environment.SystemDirectory + "\\";
            if (fileType[0] == '.')
            {
                //读系统注册表中文件类型信息
                regVersion = Registry.ClassesRoot.OpenSubKey(fileType, true);
                if (regVersion != null)
                {
                    regFileType = regVersion.GetValue("") as string;
                    regVersion.Close();
                    regVersion = Registry.ClassesRoot.OpenSubKey(regFileType + @"\DefaultIcon", true);
                    if (regVersion != null)
                    {
                        regIconString = regVersion.GetValue("") as string;
                        regVersion.Close();
                    }
                }
                if (regIconString == null)
                {
                    //没有读取到文件类型注册信息，指定为未知文件类型的图标
                    regIconString = systemDirectory + "shell32.dll,0";
                }
            }
            else
            {
                //直接指定为文件夹图标
                regIconString = systemDirectory + "shell32.dll,3";
            }
            string[] fileIcon = regIconString.Split(new char[] { ',' });
            if (fileIcon.Length != 2)
            {
                //系统注册表中注册的标图不能直接提取，则返回可执行文件的通用图标
                fileIcon = new string[] { systemDirectory + "shell32.dll", "2" };
            }
            Icon resultIcon = null;
            try
            {
                //调用API方法读取图标
                int[] phiconLarge = new int[1];
                int[] phiconSmall = new int[1];
                uint count = Win32.ExtractIconEx(fileIcon[0], Int32.Parse(fileIcon[1]), phiconLarge, phiconSmall, 1);
                IntPtr IconHnd = new IntPtr(isLarge ? phiconLarge[0] : phiconSmall[0]);
                resultIcon = Icon.FromHandle(IconHnd);
            }

            catch
            {
                fileIcon = new string[] { systemDirectory + "shell32.dll", "2" };
                //调用API方法读取图标
                int[] phiconLarge = new int[1];
                int[] phiconSmall = new int[1];
                uint count = Win32.ExtractIconEx(fileIcon[0], Int32.Parse(fileIcon[1]), phiconLarge, phiconSmall, 1);
                IntPtr IconHnd = new IntPtr(isLarge ? phiconLarge[0] : phiconSmall[0]);
                resultIcon = Icon.FromHandle(IconHnd);
            }
            return resultIcon;
        }

下面这个方法是连接检查是否连接上FTP服务器，如果连接成功返回true，连接失败返回false

        /// 

        /// 验证是否连接FTP服务器
        /// 
        /// 服务器地址
        /// 用户名
        /// 密码
        /// 
        public bool CheckFtp(string DomainName, string FtpUserName, string FtpUserPwd)
        {
            bool ResultValue = true;
            try
            {
                FtpWebRequest ftprequest = (FtpWebRequest)WebRequest.Create("ftp://" + DomainName);//创建FtpWebRequest对象
                ftprequest.Credentials = new NetworkCredential(FtpUserName, FtpUserPwd);//设置FTP登陆信息
                ftprequest.Method = WebRequestMethods.Ftp.ListDirectory;//发送一个请求命令
                FtpWebResponse ftpResponse = (FtpWebResponse)ftprequest.GetResponse();//响应一个请求
                ftpResponse.Close();//关闭请求
            }
            catch
            {
                ResultValue = false;
            }
            return ResultValue;
        }

下面这个方法是获取服务器上文件和文件夹的列表的信息

        /// 

        /// 获得文件和目录列表
        /// 
        /// FTP返回的列表字符信息
        private FileStruct[] GetList(string datastring)
        {
            List myListArray = new List();
            string[] dataRecords = datastring.Split('\n');
            FileListStyle _directoryListStyle = GuessFileListStyle(dataRecords);
            foreach (string s in dataRecords)
            {
                if (s.Contains("total"))
                    continue;

                if (_directoryListStyle != FileListStyle.Unknown && s != "")
                {
                    FileStruct f = new FileStruct();
                    f.Name = "..";
                    switch (_directoryListStyle)
                    {
                        case FileListStyle.UnixStyle:
                            f = ParseFileStructFromUnixStyleRecord(s);
                            break;
                        case FileListStyle.WindowsStyle:
                            f = ParseFileStructFromWindowsStyleRecord(s);
                            break;
                    }
                    if (!(f.Name == "." || f.Name == ".."))
                    {
                        myListArray.Add(f);
                    }
                }
            }
            return myListArray.ToArray();
        }

    public class FileStruct
    {
        public string Flags { set; get; }
        public string Owner { set; get; }
        public string Group { set; get; }
        public bool IsDirectory { set; get; }
        public DateTime CreateTime { set; get; }
        public string Name { set; get; }
        public string Path { set; get; }
        public string fileSize { set; get; }
    }

给ListView添加右键菜单，效果如下