851 lines
29 KiB
C#
851 lines
29 KiB
C#
/******************************************************************************
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* SunnyUI 开源控件库、工具类库、扩展类库、多页面开发框架。
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* CopyRight (C) 2012-2021 ShenYongHua(沈永华).
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* QQ群：56829229 QQ：17612584 EMail：SunnyUI@QQ.Com
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*
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* Blog: https://www.cnblogs.com/yhuse
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* Gitee: https://gitee.com/yhuse/SunnyUI
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* GitHub: https://github.com/yhuse/SunnyUI
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*
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* SunnyUI.dll can be used for free under the GPL-3.0 license.
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* If you use this code, please keep this note.
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* 如果您使用此代码，请保留此说明。
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******************************************************************************
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* 文件名称: UFile.cs
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* 文件说明: 文件扩展类
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* 当前版本: V3.0
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* 创建日期: 2020-01-01
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*
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* 2020-01-01: V2.2.0 增加文件说明
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******************************************************************************/
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using Microsoft.Win32;
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using System;
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using System.Diagnostics;
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using System.Globalization;
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using System.IO;
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using System.IO.Compression;
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using System.Linq;
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using System.Text;
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using System.Windows.Forms;
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namespace Sunny.UI
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{
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/// <summary>
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/// 文件扩展类
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/// </summary>
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public static class FileEx
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{
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/// <summary>
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/// 打开文件夹对话框
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/// </summary>
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/// <param name="filename">返回True时，获取文件名</param>
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/// <param name="filter">过滤器</param>
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/// <param name="defaultExt">默认文件扩展名</param>
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/// <returns>打开是否成功</returns>
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public static bool OpenDialog(ref string filename, string filter = "", string defaultExt = "")
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{
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using (OpenFileDialog od = new OpenFileDialog { Title = "打开" })
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{
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try
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{
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od.FileName = filename;
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od.Filter = filter;
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}
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catch
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{
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od.Filter = "";
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}
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od.DefaultExt = defaultExt;
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if (od.ShowDialog() == DialogResult.OK)
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{
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filename = od.FileName;
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return true;
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}
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}
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return false;
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}
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/// <summary>
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/// 保存文件对话框
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/// </summary>
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/// <param name="filename">返回True时，获取文件名</param>
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/// <param name="filter">过滤器</param>
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/// <param name="defaultExt">默认文件扩展名</param>
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/// <returns>保存是否成功</returns>
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public static bool SaveDialog(ref string filename, string filter = "", string defaultExt = "")
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{
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using (SaveFileDialog od = new SaveFileDialog { Title = "保存" })
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{
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try
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{
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od.FileName = filename;
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od.Filter = filter;
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}
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catch
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{
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od.Filter = "";
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}
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od.DefaultExt = defaultExt;
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if (od.ShowDialog() == DialogResult.OK)
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{
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filename = od.FileName;
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return true;
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}
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}
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return false;
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}
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/// <summary>
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/// 关闭进程
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/// </summary>
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/// <param name="filename">文件名</param>
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public static void CloseRunFile(string filename)
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{
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Process[] processes = Process.GetProcesses();
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//遍历与当前进程名称相同的进程列表
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foreach (Process process in processes)
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{
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if (!string.Equals(process.ProcessName, filename, StringComparison.CurrentCultureIgnoreCase))
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{
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continue;
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}
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process.Kill();
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process.Close();
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}
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}
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/// <summary>
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/// 执行cmd命令
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/// </summary>
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/// <param name="commandText">命令</param>
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/// <returns>结果</returns>
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public static string RunExeCommand(string commandText)
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{
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Process p = new Process(); //创建并实例化一个操作进程的类：Process
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p.StartInfo.FileName = "cmd.exe"; //设置要启动的应用程序
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p.StartInfo.UseShellExecute = false; //设置是否使用操作系统shell启动进程
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p.StartInfo.RedirectStandardInput = true; //指示应用程序是否从StandardInput流中读取
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p.StartInfo.RedirectStandardOutput = true; //将应用程序的输入写入到StandardOutput流中
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p.StartInfo.RedirectStandardError = true; //将应用程序的错误输出写入到StandardError流中
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p.StartInfo.CreateNoWindow = true; //是否在新窗口中启动进程
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string strOutput;
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try
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{
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p.Start();
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p.StandardInput.WriteLine(commandText); //将CMD命令写入StandardInput流中
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p.StandardInput.WriteLine("exit"); //将 exit 命令写入StandardInput流中
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strOutput = p.StandardOutput.ReadToEnd(); //读取所有输出的流的所有字符
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p.WaitForExit(); //无限期等待，直至进程退出
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p.Close(); //释放进程，关闭进程
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}
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catch (Exception e)
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{
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strOutput = e.Message;
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}
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return strOutput;
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}
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/// <summary>
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/// 获取不重复的临时文件名，createZeroSizeFile为真时创建0字节的文件
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/// </summary>
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/// <param name="createZeroSizeFile">是否创建文件</param>
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/// <returns>文件名</returns>
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public static string TempFileName(bool createZeroSizeFile = true)
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{
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string path = Path.GetTempFileName();
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if (!createZeroSizeFile)
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{
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File.Delete(path);
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}
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return path;
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}
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/// <summary>
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/// 运行文件，当文件已经运行时调至前台
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/// </summary>
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/// <param name="file">文件名</param>
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/// <param name="bringToFrontIfRun">运行时调至前台</param>
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public static Process RunExe(this FileInfo file, bool bringToFrontIfRun = true)
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{
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if (file == null || !file.Exists)
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{
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return null;
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}
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if (bringToFrontIfRun)
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{
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foreach (Process oth in Process.GetProcesses())
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{
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if (!string.Equals(oth.ProcessName, file.Name.Replace(file.Extension, ""), StringComparison.CurrentCultureIgnoreCase))
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{
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continue;
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}
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IntPtr hWnd = oth.MainWindowHandle;
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Win32.User.ShowWindowAsync(hWnd, (int)ProcessWindowStyle.Maximized);
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Win32.User.SetForegroundWindow(hWnd);
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return oth;
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}
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}
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if (file.Directory != null)
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{
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Directory.SetCurrentDirectory(file.Directory.FullName.DealPath());
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}
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return Process.Start(file.FullName);
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}
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/// <summary>
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/// 文件信息
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/// </summary>
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/// <param name="filename">文件名</param>
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/// <returns>结果</returns>
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public static FileInfo FileInfo(this string filename)
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{
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return File.Exists(filename) ? new FileInfo(filename) : null;
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}
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/// <summary>
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/// 程序是否为32位程序
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/// </summary>
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/// <param name="file">文件名</param>
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/// <returns>结果</returns>
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public static bool IsPE32(this FileInfo file)
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{
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FileStream stream = File.OpenRead(file.FullName);
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//移动到 e_lfanew 的位置处
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stream.Seek(0x40 - 4, SeekOrigin.Begin);
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byte[] buf = new byte[4];
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stream.Read(buf, 0, buf.Length);
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//根据 e_lfanew 的值计算出Machine的位置
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int pos = BitConverter.ToInt32(buf, 0) + 4;
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stream.Seek(pos, SeekOrigin.Begin);
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buf = new byte[2];
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stream.Read(buf, 0, buf.Length);
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stream.Close();
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//得到Machine的值，0x14C为32位，0x8664为64位
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short machine = BitConverter.ToInt16(buf, 0);
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return machine == 0x14C;
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}
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/// <summary>
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/// 可执行文件是否运行
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/// </summary>
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/// <param name="file">文件名</param>
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/// <returns>是否运行</returns>
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public static bool IsRun(this FileInfo file)
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{
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return file.Exists && Process.GetProcesses().Any(oth => string.Equals(oth.ProcessName, file.NameWithoutExt(), StringComparison.CurrentCultureIgnoreCase));
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}
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/// <summary>
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/// 可执行文件是否运行
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/// </summary>
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/// <param name="filename">文件名</param>
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/// <returns>是否运行</returns>
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public static bool IsRun(string filename)
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{
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return filename.FileInfo().IsRun();
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}
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/// <summary>
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/// 获取无后缀的文件名
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/// </summary>
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/// <param name="file">文件信息</param>
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/// <returns>文件名</returns>
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public static string NameWithoutExt(this FileInfo file)
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{
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return file == null ? string.Empty : file.Name.Replace(file.Extension, "");
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}
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/// <summary>
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/// 判断一个文件是否正在使用
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/// </summary>
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/// <param name="file">要判断文件的文件名</param>
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/// <returns> bool</returns>
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public static bool IsUse(this FileInfo file)
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{
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if (file == null || !file.Exists)
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{
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return false; //文件不存在则一定没有被使用
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}
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bool inUse = true;
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try
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{
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using (new FileStream(file.FullName, FileMode.Open, FileAccess.Read, FileShare.None))
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{
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inUse = false;
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}
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}
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catch (Exception e)
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{
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Console.WriteLine(e.Message.ToString(CultureInfo.InvariantCulture));
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}
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return inUse; //true表示正在使用,false没有使用
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}
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/// <summary>
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/// 使文件类型与对应的图标及应用程序关联起来。
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/// </summary>
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/// <param name="regInfo">regInfo</param>
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public static void RegisterFileType(this FileTypeRegInfo regInfo)
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{
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if (regInfo.FileTypeRegistered())
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{
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return;
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}
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string relationName = regInfo.ExtendName.Right(regInfo.ExtendName.Length - 1).ToUpper() + "_FileType";
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RegistryKey fileTypeKey = Registry.ClassesRoot.CreateSubKey(regInfo.ExtendName);
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if (fileTypeKey != null)
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{
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fileTypeKey.SetValue("", relationName);
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fileTypeKey.Close();
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}
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RegistryKey relationKey = Registry.ClassesRoot.CreateSubKey(relationName);
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if (relationKey == null)
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{
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return;
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}
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relationKey.SetValue("", regInfo.Description);
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RegistryKey iconKey = relationKey.CreateSubKey("DefaultIcon");
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if (iconKey != null)
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{
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iconKey.SetValue("", regInfo.IcoPath);
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iconKey.Close();
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}
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RegistryKey shellKey = relationKey.CreateSubKey("Shell");
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if (shellKey != null)
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{
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RegistryKey openKey = shellKey.CreateSubKey("Open");
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if (openKey != null)
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{
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RegistryKey commandKey = openKey.CreateSubKey("Command");
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if (commandKey != null)
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{
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commandKey.SetValue("", regInfo.ExePath + " %1");
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commandKey.Close();
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}
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openKey.Close();
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}
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shellKey.Close();
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}
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relationKey.Close();
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}
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/// <summary>
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/// 得到指定文件类型关联信息
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/// </summary>
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/// <param name="regInfo">regInfo</param>
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/// <returns>结果</returns>
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public static FileTypeRegInfo GetFileTypeRegInfo(this FileTypeRegInfo regInfo)
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{
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string relationName = regInfo.ExtendName.Right(regInfo.ExtendName.Length - 1).ToUpper() + "_FileType";
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RegistryKey relationKey = Registry.ClassesRoot.OpenSubKey(relationName);
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if (relationKey == null)
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{
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return regInfo;
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}
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regInfo.Description = relationKey.GetValue("").ToString();
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RegistryKey iconKey = relationKey.OpenSubKey("DefaultIcon");
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if (iconKey != null)
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{
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regInfo.IcoPath = iconKey.GetValue("").ToString();
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RegistryKey shellKey = relationKey.OpenSubKey("Shell");
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if (shellKey != null)
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{
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RegistryKey openKey = shellKey.OpenSubKey("Open");
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if (openKey != null)
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{
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RegistryKey commandKey = openKey.OpenSubKey("Command");
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if (commandKey != null)
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{
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string temp = commandKey.GetValue("").ToString();
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regInfo.ExePath = temp.Left(temp.Length - 3);
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commandKey.Close();
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}
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openKey.Close();
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}
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shellKey.Close();
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}
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iconKey.Close();
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}
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relationKey.Close();
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return regInfo;
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}
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/// <summary>
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/// FileTypeRegistered 指定文件类型是否已经注册
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/// </summary>
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/// <param name="regInfo">regInfo</param>
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/// <returns>结果</returns>
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public static bool FileTypeRegistered(this FileTypeRegInfo regInfo)
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{
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FileTypeRegInfo info = new FileTypeRegInfo(regInfo.ExtendName).GetFileTypeRegInfo();
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return info != null && info.ExePath == regInfo.ExePath;
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}
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/// <summary>
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/// GZip压缩文件
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/// </summary>
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/// <param name="file">文件</param>
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/// <param name="outfile">输出</param>
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public static void GZipCompress(this FileInfo file, string outfile)
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{
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if (file == null || !file.Exists)
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{
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return;
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}
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// Get the stream of the source file.
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using (FileStream inFile = file.OpenRead())
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{
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// Prevent compressing hidden and already compressed files.
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if (!((File.GetAttributes(file.FullName) & FileAttributes.Hidden) != FileAttributes.Hidden & file.Extension != ".gz"))
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{
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return;
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}
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// Create the compressed file.
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using (FileStream outFile = File.Create(outfile))
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{
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using (GZipStream compress = new GZipStream(outFile, CompressionMode.Compress))
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{
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// Copy the source file into the compression stream.
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inFile.CopyTo(compress);
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}
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}
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}
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}
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/// <summary>
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/// GZip解压缩文件
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/// </summary>
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/// <param name="file">文件</param>
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/// <param name="outfile">输出</param>
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public static void GZipDecompress(this FileInfo file, string outfile)
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{
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if (file == null || !file.Exists)
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{
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return;
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}
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// Get the stream of the source file.
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using (FileStream inFile = file.OpenRead())
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{
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// Get original file extension, for example
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// "doc" source report.doc.gz.
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string origName = outfile;
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//Create the decompressed file.
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using (FileStream outFile = File.Create(origName))
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{
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using (GZipStream decompress = new GZipStream(inFile, CompressionMode.Decompress))
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{
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// Copy the decompression stream into the output file.
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decompress.CopyTo(outFile);
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}
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}
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}
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}
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/// <summary>
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/// 加到主界面中初始化中，通过注册文件类型调用程序打开时，判断文件名并添加处理代码
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/// </summary>
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/// <returns>结果</returns>
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public static string GetCommandFile()
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{
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string command = Environment.CommandLine; //获取进程命令行参数
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string[] para = command.Split(new[] { '"' }, StringSplitOptions.RemoveEmptyEntries);
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//当打开文件的时候自动加载相关配置
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return para.Length >= 3 ? para[2] : string.Empty;
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}
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/// <summary>
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/// 尝试删除文件
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/// </summary>
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/// <param name="file">文件名</param>
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/// <returns>结果</returns>
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public static bool TryDelete(string file)
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{
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return file.FileInfo().TryDelete();
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}
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/// <summary>
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/// 尝试删除文件
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/// </summary>
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/// <param name="fi">文件名</param>
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/// <returns>结果</returns>
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public static bool TryDelete(this FileInfo fi)
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{
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try
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{
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File.Delete(fi.FullName);
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return true;
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}
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catch (Exception ex)
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{
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Console.WriteLine(ex.Message);
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return false;
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}
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}
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/// <summary>
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/// 复制
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/// </summary>
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/// <param name="source">源目录</param>
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/// <param name="dest">目标目录</param>
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public static void Copy(string source, string dest)
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{
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Copy(new DirectoryInfo(source), new DirectoryInfo(dest));
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}
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/// <summary>
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/// 复制
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/// </summary>
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/// <param name="source">源目录</param>
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/// <param name="dest">目标目录</param>
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public static void Copy(DirectoryInfo source, DirectoryInfo dest)
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{
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if (dest.FullName.StartsWith(source.FullName, StringComparison.CurrentCultureIgnoreCase))
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{
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throw new Exception("父目录不能拷贝到子目录！");
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}
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if (!source.Exists)
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||
{
|
||
return;
|
||
}
|
||
|
||
if (!dest.Exists)
|
||
{
|
||
dest.Create();
|
||
}
|
||
|
||
FileInfo[] files = source.GetFiles();
|
||
|
||
foreach (FileInfo file in files)
|
||
{
|
||
File.Copy(file.FullName, Path.Combine(dest.FullName, file.Name), true);
|
||
}
|
||
|
||
DirectoryInfo[] dirs = source.GetDirectories();
|
||
foreach (DirectoryInfo dir in dirs)
|
||
{
|
||
Copy(dir.FullName, Path.Combine(dest.FullName, dir.Name));
|
||
}
|
||
}
|
||
|
||
/// <summary>
|
||
/// 根据完整文件路径获取FileStream
|
||
/// </summary>
|
||
/// <param name="file">文件</param>
|
||
/// <returns>结果</returns>
|
||
public static FileStream ReadStream(this FileInfo file)
|
||
{
|
||
FileStream fileStream = null;
|
||
if (file.Exists)
|
||
{
|
||
fileStream = new FileStream(file.FullName, FileMode.Open);
|
||
fileStream.Position = 0;
|
||
}
|
||
|
||
return fileStream;
|
||
}
|
||
|
||
/// <summary>
|
||
/// 检测指定文件是否存在,如果存在则返回true。
|
||
/// </summary>
|
||
/// <param name="filePath">文件的绝对路径</param>
|
||
/// <returns>结果</returns>
|
||
public static bool Exists(string filePath)
|
||
{
|
||
return File.Exists(filePath);
|
||
}
|
||
|
||
/// <summary>
|
||
/// 创建一个文件。
|
||
/// </summary>
|
||
/// <param name="filePath">文件的绝对路径</param>
|
||
/// <returns>结果</returns>
|
||
public static bool CreateFile(string filePath)
|
||
{
|
||
try
|
||
{
|
||
//如果文件不存在则创建该文件
|
||
if (!Exists(filePath))
|
||
{
|
||
//创建一个FileInfo对象
|
||
FileInfo file = new FileInfo(filePath);
|
||
//创建文件
|
||
FileStream fs = file.Create();
|
||
//关闭文件流
|
||
fs.Close();
|
||
}
|
||
|
||
return true;
|
||
}
|
||
catch
|
||
{
|
||
return false;
|
||
}
|
||
}
|
||
|
||
/// <summary>
|
||
/// 创建一个文件,并将字节流写入文件。
|
||
/// </summary>
|
||
/// <param name="filePath">文件的绝对路径</param>
|
||
/// <param name="buffer">二进制流数据</param>
|
||
/// <returns>结果</returns>
|
||
public static bool CreateFile(string filePath, byte[] buffer)
|
||
{
|
||
try
|
||
{
|
||
//如果文件不存在则创建该文件
|
||
if (!Exists(filePath))
|
||
{
|
||
//创建一个FileInfo对象
|
||
FileInfo file = new FileInfo(filePath);
|
||
//创建文件
|
||
FileStream fs = file.Create();
|
||
//写入二进制流
|
||
fs.Write(buffer, 0, buffer.Length);
|
||
//关闭文件流
|
||
fs.Close();
|
||
}
|
||
|
||
return true;
|
||
}
|
||
catch
|
||
{
|
||
return false;
|
||
}
|
||
}
|
||
|
||
/// <summary>
|
||
/// 获取文本文件的行数
|
||
/// </summary>
|
||
/// <param name="filePath">文件的绝对路径</param>
|
||
/// <returns>结果</returns>
|
||
public static int LineCount(string filePath)
|
||
{
|
||
//将文本文件的各行读到一个字符串数组中，返回行数
|
||
return File.ReadAllLines(filePath).Length;
|
||
}
|
||
|
||
/// <summary>
|
||
/// 获取文本文件的行数
|
||
/// </summary>
|
||
/// <param name="info">文件的绝对路径</param>
|
||
/// <returns>结果</returns>
|
||
public static int LineCount(this FileInfo info)
|
||
{
|
||
//将文本文件的各行读到一个字符串数组中，返回行数
|
||
return File.ReadAllLines(info.FullName).Length;
|
||
}
|
||
|
||
private static readonly uint[] Crc32Table =
|
||
{
|
||
0x00000000, 0x77073096, 0xEE0E612C, 0x990951BA,
|
||
0x076DC419, 0x706AF48F, 0xE963A535, 0x9E6495A3,
|
||
0x0EDB8832, 0x79DCB8A4, 0xE0D5E91E, 0x97D2D988,
|
||
0x09B64C2B, 0x7EB17CBD, 0xE7B82D07, 0x90BF1D91,
|
||
0x1DB71064, 0x6AB020F2, 0xF3B97148, 0x84BE41DE,
|
||
0x1ADAD47D, 0x6DDDE4EB, 0xF4D4B551, 0x83D385C7,
|
||
0x136C9856, 0x646BA8C0, 0xFD62F97A, 0x8A65C9EC,
|
||
0x14015C4F, 0x63066CD9, 0xFA0F3D63, 0x8D080DF5,
|
||
0x3B6E20C8, 0x4C69105E, 0xD56041E4, 0xA2677172,
|
||
0x3C03E4D1, 0x4B04D447, 0xD20D85FD, 0xA50AB56B,
|
||
0x35B5A8FA, 0x42B2986C, 0xDBBBC9D6, 0xACBCF940,
|
||
0x32D86CE3, 0x45DF5C75, 0xDCD60DCF, 0xABD13D59,
|
||
0x26D930AC, 0x51DE003A, 0xC8D75180, 0xBFD06116,
|
||
0x21B4F4B5, 0x56B3C423, 0xCFBA9599, 0xB8BDA50F,
|
||
0x2802B89E, 0x5F058808, 0xC60CD9B2, 0xB10BE924,
|
||
0x2F6F7C87, 0x58684C11, 0xC1611DAB, 0xB6662D3D,
|
||
0x76DC4190, 0x01DB7106, 0x98D220BC, 0xEFD5102A,
|
||
0x71B18589, 0x06B6B51F, 0x9FBFE4A5, 0xE8B8D433,
|
||
0x7807C9A2, 0x0F00F934, 0x9609A88E, 0xE10E9818,
|
||
0x7F6A0DBB, 0x086D3D2D, 0x91646C97, 0xE6635C01,
|
||
0x6B6B51F4, 0x1C6C6162, 0x856530D8, 0xF262004E,
|
||
0x6C0695ED, 0x1B01A57B, 0x8208F4C1, 0xF50FC457,
|
||
0x65B0D9C6, 0x12B7E950, 0x8BBEB8EA, 0xFCB9887C,
|
||
0x62DD1DDF, 0x15DA2D49, 0x8CD37CF3, 0xFBD44C65,
|
||
0x4DB26158, 0x3AB551CE, 0xA3BC0074, 0xD4BB30E2,
|
||
0x4ADFA541, 0x3DD895D7, 0xA4D1C46D, 0xD3D6F4FB,
|
||
0x4369E96A, 0x346ED9FC, 0xAD678846, 0xDA60B8D0,
|
||
0x44042D73, 0x33031DE5, 0xAA0A4C5F, 0xDD0D7CC9,
|
||
0x5005713C, 0x270241AA, 0xBE0B1010, 0xC90C2086,
|
||
0x5768B525, 0x206F85B3, 0xB966D409, 0xCE61E49F,
|
||
0x5EDEF90E, 0x29D9C998, 0xB0D09822, 0xC7D7A8B4,
|
||
0x59B33D17, 0x2EB40D81, 0xB7BD5C3B, 0xC0BA6CAD,
|
||
0xEDB88320, 0x9ABFB3B6, 0x03B6E20C, 0x74B1D29A,
|
||
0xEAD54739, 0x9DD277AF, 0x04DB2615, 0x73DC1683,
|
||
0xE3630B12, 0x94643B84, 0x0D6D6A3E, 0x7A6A5AA8,
|
||
0xE40ECF0B, 0x9309FF9D, 0x0A00AE27, 0x7D079EB1,
|
||
0xF00F9344, 0x8708A3D2, 0x1E01F268, 0x6906C2FE,
|
||
0xF762575D, 0x806567CB, 0x196C3671, 0x6E6B06E7,
|
||
0xFED41B76, 0x89D32BE0, 0x10DA7A5A, 0x67DD4ACC,
|
||
0xF9B9DF6F, 0x8EBEEFF9, 0x17B7BE43, 0x60B08ED5,
|
||
0xD6D6A3E8, 0xA1D1937E, 0x38D8C2C4, 0x4FDFF252,
|
||
0xD1BB67F1, 0xA6BC5767, 0x3FB506DD, 0x48B2364B,
|
||
0xD80D2BDA, 0xAF0A1B4C, 0x36034AF6, 0x41047A60,
|
||
0xDF60EFC3, 0xA867DF55, 0x316E8EEF, 0x4669BE79,
|
||
0xCB61B38C, 0xBC66831A, 0x256FD2A0, 0x5268E236,
|
||
0xCC0C7795, 0xBB0B4703, 0x220216B9, 0x5505262F,
|
||
0xC5BA3BBE, 0xB2BD0B28, 0x2BB45A92, 0x5CB36A04,
|
||
0xC2D7FFA7, 0xB5D0CF31, 0x2CD99E8B, 0x5BDEAE1D,
|
||
0x9B64C2B0, 0xEC63F226, 0x756AA39C, 0x026D930A,
|
||
0x9C0906A9, 0xEB0E363F, 0x72076785, 0x05005713,
|
||
0x95BF4A82, 0xE2B87A14, 0x7BB12BAE, 0x0CB61B38,
|
||
0x92D28E9B, 0xE5D5BE0D, 0x7CDCEFB7, 0x0BDBDF21,
|
||
0x86D3D2D4, 0xF1D4E242, 0x68DDB3F8, 0x1FDA836E,
|
||
0x81BE16CD, 0xF6B9265B, 0x6FB077E1, 0x18B74777,
|
||
0x88085AE6, 0xFF0F6A70, 0x66063BCA, 0x11010B5C,
|
||
0x8F659EFF, 0xF862AE69, 0x616BFFD3, 0x166CCF45,
|
||
0xA00AE278, 0xD70DD2EE, 0x4E048354, 0x3903B3C2,
|
||
0xA7672661, 0xD06016F7, 0x4969474D, 0x3E6E77DB,
|
||
0xAED16A4A, 0xD9D65ADC, 0x40DF0B66, 0x37D83BF0,
|
||
0xA9BCAE53, 0xDEBB9EC5, 0x47B2CF7F, 0x30B5FFE9,
|
||
0xBDBDF21C, 0xCABAC28A, 0x53B39330, 0x24B4A3A6,
|
||
0xBAD03605, 0xCDD70693, 0x54DE5729, 0x23D967BF,
|
||
0xB3667A2E, 0xC4614AB8, 0x5D681B02, 0x2A6F2B94,
|
||
0xB40BBE37, 0xC30C8EA1, 0x5A05DF1B, 0x2D02EF8D
|
||
};
|
||
|
||
/// <summary>
|
||
/// 获取文件的CRC32标识
|
||
/// </summary>
|
||
/// <param name="fi">文件信息</param>
|
||
/// <returns>CRC</returns>
|
||
public static string CRC32(this FileInfo fi)
|
||
{
|
||
const string FOO = "-";
|
||
if (!fi.Exists)
|
||
{
|
||
return FOO;
|
||
}
|
||
|
||
// 最大50M
|
||
const int MAX_SIZE = 50 * 1024 * 1024;
|
||
|
||
if (fi.Length >= MAX_SIZE)
|
||
{
|
||
return FOO;
|
||
}
|
||
|
||
uint crc = 0xFFFFFFFF;
|
||
var bin = File.ReadAllBytes(fi.FullName);
|
||
foreach (byte b in bin)
|
||
{
|
||
crc = ((crc >> 8) & 0x00FFFFFF) ^ Crc32Table[(crc ^ b) & 0xFF];
|
||
}
|
||
|
||
crc ^= 0xFFFFFFFF;
|
||
return crc.ToString("X").PadLeft(8, '0');
|
||
}
|
||
|
||
public static bool IsValidFileName(string name)
|
||
{
|
||
if (name.IsNullOrEmpty())
|
||
{
|
||
return false;
|
||
}
|
||
|
||
string[] errorStr = { "/", "\\", ":", ",", "*", "?", "\"", "<", ">", "|" };
|
||
foreach (var str in errorStr)
|
||
{
|
||
if (name.Contains(str))
|
||
{
|
||
return false;
|
||
}
|
||
}
|
||
|
||
return true;
|
||
}
|
||
|
||
/// <summary>
|
||
/// 获取文件的Encoding
|
||
/// </summary>
|
||
private static Encoding GetEncoding(string filename)
|
||
{
|
||
// This is a direct quote from MSDN:
|
||
// The CurrentEncoding value can be different after the first
|
||
// call to any Read method of StreamReader, since encoding
|
||
// autodetection is not done until the first call to a Read method.
|
||
|
||
using (var reader = new StreamReader(filename, Encoding.Default, true))
|
||
{
|
||
if (reader.Peek() >= 0) // you need this!
|
||
reader.Read();
|
||
|
||
return reader.CurrentEncoding;
|
||
}
|
||
}
|
||
}
|
||
|
||
/// <summary>
|
||
/// 文件类型注册信息
|
||
/// </summary>
|
||
public class FileTypeRegInfo
|
||
{
|
||
/// <summary>
|
||
/// 目标类型文件的扩展名，例如".xcf"
|
||
/// </summary>
|
||
public string ExtendName;
|
||
|
||
/// <summary>
|
||
/// 目标文件类型说明，例如"XCodeFactory项目文件"
|
||
/// </summary>
|
||
public string Description;
|
||
|
||
/// <summary>
|
||
/// 目标类型文件关联的图标
|
||
/// </summary>
|
||
public string IcoPath;
|
||
|
||
/// <summary>
|
||
/// 打开目标类型文件的应用程序
|
||
/// </summary>
|
||
public string ExePath;
|
||
|
||
/// <summary>
|
||
/// 构造函数
|
||
/// </summary>
|
||
public FileTypeRegInfo()
|
||
{
|
||
}
|
||
|
||
/// <summary>
|
||
/// 构造函数
|
||
/// </summary>
|
||
/// <param name="extendName">扩展名</param>
|
||
public FileTypeRegInfo(string extendName)
|
||
{
|
||
ExtendName = extendName;
|
||
}
|
||
}
|
||
} |