快捷導(dǎo)航

使用C#程序驗(yàn)證系統(tǒng)登錄用戶與目錄權(quán)限

更新時(shí)間：2020年12月08日 14:53:16 作者：boonya

這篇文章主要介紹了使用C#程序驗(yàn)證系統(tǒng)登錄用戶與目錄權(quán)限，具有很好的參考價(jià)值，希望對(duì)大家有所幫助。一起跟隨小編過來看看吧

Windows用戶類型：Administrator、Guest、自定義用戶等；文件的權(quán)限不外乎：Read、Write、Modify、Remove等等，其中擁有所有權(quán)限的字符叫做FullControl。

C#當(dāng)前程序用戶路徑權(quán)限驗(yàn)證

/// <summary>
  /// 是否擁有程序數(shù)據(jù)路徑權(quán)限
  /// </summary>
  private static bool HasProgramDataRights=false;
 
  public static bool IsAdministrator()
  {
   System.Security.Principal.WindowsIdentity identity = System.Security.Principal.WindowsIdentity.GetCurrent();
   System.Security.Principal.WindowsPrincipal principal = new System.Security.Principal.WindowsPrincipal(identity);
   return principal.IsInRole(System.Security.Principal.WindowsBuiltInRole.Administrator);
  }
 
  /// <summary>
  /// 讀取系統(tǒng)程序數(shù)據(jù)路徑權(quán)限&判斷是否可以使用臨時(shí)目錄進(jìn)行保存操作
  /// </summary>
  /// <param name="path"></param>
  public void ReadProgramDataRights(string path)
  {
   // 通過判定文件的權(quán)限來控制路徑
   System.Security.AccessControl.DirectorySecurity dirSec = new System.IO.DirectoryInfo(path).GetAccessControl();
   System.Security.AccessControl.AuthorizationRuleCollection rules = dirSec.GetAccessRules(true, true, typeof(System.Security.Principal.NTAccount));
   foreach (System.Security.AccessControl.FileSystemAccessRule rule in rules)
   {
    Console.WriteLine(path + "文件目錄權(quán)限字符:" + rule.FileSystemRights);
    // 判定文件是否具有FullControl或Write權(quán)限
    if (rule.FileSystemRights.ToString().Equals("FullControl") || rule.FileSystemRights.ToString().Equals("Write"))
    {
     HasProgramDataRights = true;
     break;
    }
   }
   // 為IE保護(hù)模式創(chuàng)建臨時(shí)保存路徑
   if (HasProgramDataRights)
   {
    // 創(chuàng)建操作路徑
    string recordTemp = FileHelp.GetAppDataLocalLow() + "\\CvNetVideo\\Record\\";
    string screenshotTemp = FileHelp.GetAppDataLocalLow() + "\\CvNetVideo\\Screenshot\\";
    string recordDst = FileHelp.GetCommonApplicationData() + "\\CvNetVideo\\Record\\";
    string screenshotDst = FileHelp.GetCommonApplicationData() + "\\CvNetVideo\\Screenshot\\";
    Directory.CreateDirectory(recordTemp);
    Directory.CreateDirectory(screenshotTemp);
    Directory.CreateDirectory(recordDst);
    Directory.CreateDirectory(screenshotDst);
   }
  }

C#文件操作工具類

public class FileHelp
 {
  public enum GetDirectoryType
  {
   ByAppDomain,
   ByAssembly
  }
  public static string GetCurrentDirectory(GetDirectoryType type = GetDirectoryType.ByAppDomain)
  {
   switch (type)
   {
    case GetDirectoryType.ByAppDomain:
     return AppDomain.CurrentDomain.BaseDirectory;
    case GetDirectoryType.ByAssembly:
 
     return Path.GetDirectoryName(System.Reflection.Assembly.GetExecutingAssembly().Location);
    default:
     return AppDomain.CurrentDomain.BaseDirectory;
   }
  }
  public static string GetCurrentDirectoryByAssembly()
  {
   return GetCurrentDirectory(GetDirectoryType.ByAssembly);
  }
 
  /// <summary>
  ///程序數(shù)據(jù)路徑- C:\ProgramData
  /// </summary>
  /// <returns></returns>
  public static string GetCommonApplicationData()
  {
   return Environment.GetFolderPath(Environment.SpecialFolder.CommonApplicationData);
  }
 
  /// <summary>
  /// 用戶數(shù)據(jù)路徑
  /// </summary>
  /// <returns></returns>
  public static string GetApplicationData()
  {
   return Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData);
  }
 
  /// <summary>
  /// 用戶數(shù)據(jù)本地路徑
  /// </summary>
  /// <returns></returns>
  public static string GetLocalApplicationData()
  {
   return Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData);
  }
 
  /// <summary>
  /// 用戶路徑
  /// </summary>
  /// <returns></returns>
  public static string GetUserProfile()
  {
   return Environment.GetFolderPath(Environment.SpecialFolder.UserProfile);
  }
 
  /// <summary>
  /// 用戶的圖片路徑
  /// </summary>
  /// <returns></returns>
  public static string GetMyPictures()
  {
   return Environment.GetFolderPath(Environment.SpecialFolder.MyPictures);
  }
 
  /// <summary>
  /// 用戶的視頻路徑
  /// </summary>
  /// <returns></returns>
  public static string GetMyVideos()
  {
   return Environment.GetFolderPath(Environment.SpecialFolder.MyVideos);
  }
 
  /// <summary>
  /// 用戶的文檔路徑
  /// </summary>
  /// <returns></returns>
  public static string GetMyDocuments()
  {
   return Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments);
  }
 
  /// <summary>
  /// IE保護(hù)模式下的低權(quán)限操作路徑(Temporary Internet Files/Low)
  /// </summary>
  /// <returns></returns>
  public static string GetTemporaryInternetFiles()
  {
   return GetLocalApplicationData()+ "\\Microsoft\\Windows\\Temporary Internet Files\\Low";
  } 
  /// <summary>
  /// IE保護(hù)模式下的低權(quán)限操作路徑(%userprofile%/AppData/LocalLow)
  /// </summary>
  /// <returns></returns>
  public static string GetAppDataLocalLow()
  {
   return GetUserProfile() + "\\AppData\\LocalLow";
  }
 
  /// <summary>
  /// 獲取系統(tǒng)字體文件路徑
  /// </summary>
  /// <returns></returns>
  public static string GetFonts()
  {
   return Environment.GetFolderPath(Environment.SpecialFolder.Fonts);
  } 
  /// <summary>
  /// 二進(jìn)制文件讀取
  /// </summary>
  /// <param name="FileUrl">文件路徑</param>
  /// <returns></returns>
  public static byte[] BinaryRead(string FileUrl)
  {
   List<byte> lst = new List<byte>();
   try
   {
    //文件路徑
    String filename = FileUrl;
    //打開文件
    FileStream FStream;
    if (File.Exists(filename))
    {
     FStream = new FileStream(filename, FileMode.Open);
    }
    else
    {
     return null;
    }
    int BufferSize = 1048576; //每次讀取的字節(jié)數(shù) 每次讀取1MB
    byte[] Buffer = new byte[BufferSize];
    long FileLength = FStream.Length;//文件流的長度
    int ReadCount = (int)(FileLength / BufferSize) + 1; //需要對(duì)文件讀取的次數(shù)
                 //數(shù)據(jù)讀取
    BinaryReader BWrite = new BinaryReader(FStream);
    //br.BaseStream.Seek(0, SeekOrigin.Begin);
    //while (br.BaseStream.Position < br.BaseStream.Length){}
    for (int a = 0; a < ReadCount; a++)
    {
     Buffer = BWrite.ReadBytes(BufferSize);
     lst.AddRange(Buffer);
    }
    BWrite.Close();
    BWrite.Close();
    return lst.ToArray();
   }
   catch (System.Exception ex)
   {
    Log.WriteLog4Ex("FileHelp.BinaryRead", ex);
    return null;
   }
  } 
  /// <summary>
  /// 二進(jìn)制文件寫入
  /// </summary>
  /// <param name="Bts"></param>
  /// <param name="DirectoryUrl">文件目錄路徑</param>
  /// <param name="FileName">文件名稱</param>
  /// <returns></returns>
  public static bool BinaryWrite(byte[] Bts, string DirectoryUrl, string FileName)
  {
   try
   {
    //文件路徑
    string Filepath = DirectoryUrl + "\\" + FileName;
    //目錄創(chuàng)建
    if (!Directory.Exists(DirectoryUrl))
     Directory.CreateDirectory(DirectoryUrl);
    //文件創(chuàng)建
    FileStream FStream;
    if (File.Exists(Filepath))
    {
     FStream = new FileStream(Filepath, FileMode.Append);
    }
    else
    {
     FStream = new FileStream(Filepath, FileMode.Create);
    }
    //數(shù)據(jù)寫入
    BinaryWriter BWrite = new BinaryWriter(FStream);
    BWrite.Write(Bts);
    BWrite.Close();
    FStream.Close();
    return true;
   }
   catch (System.Exception ex)
   {
    Log.WriteLog4Ex("FileHelp.BinaryWrite", ex);
    return false;
   }
  } 
  /// <summary>
  /// 二進(jìn)制文件刪除
  /// </summary>
  /// <param name="FileUrl">文件路徑</param>
  public static void FileDelete(string FileUrl)
  {
   try
   {
    //文件路徑
    String filename = FileUrl;
    //刪除文件
    if (File.Exists(filename))
    {
     File.Delete(filename);
    }
   }
   catch (System.Exception ex)
   {
    Log.WriteLog4Ex("FileHelp.FileDelete", ex);
   }
  }
 }

注：如果您是開發(fā)OCX遇到路徑問題請使用工具類中IE保護(hù)模式下的低權(quán)限路徑。

補(bǔ)充知識(shí)：C#修改文件或文件夾的權(quán)限，為指定用戶、用戶組添加完全控制權(quán)限

寫在前面

在windows系統(tǒng)中，c盤中的目錄權(quán)限比較高，有時(shí)制作安裝包的時(shí)候，默認(rèn)的安裝路徑就是在c盤，但對(duì)運(yùn)行可執(zhí)行文件，有時(shí)候需要為其添加完全控制權(quán)限，或者讀寫權(quán)限。這里將當(dāng)時(shí)的解決方案記錄一下。

代碼實(shí)現(xiàn)

在C盤添加一個(gè)文件夾，并在文件夾內(nèi)部，新建一個(gè)文本文件，如圖所示：

該文件夾下，新建一個(gè)文本文件，如圖所示：

為文件添加完全控制權(quán)限：

/// <summary>
  /// 為文件添加users，everyone用戶組的完全控制權(quán)限
  /// </summary>
  /// <param name="filePath"></param>
  static void AddSecurityControll2File(string filePath)
  {

   //獲取文件信息
   FileInfo fileInfo = new FileInfo(filePath);
   //獲得該文件的訪問權(quán)限
   System.Security.AccessControl.FileSecurity fileSecurity = fileInfo.GetAccessControl();
   //添加ereryone用戶組的訪問權(quán)限規(guī)則 完全控制權(quán)限
   fileSecurity.AddAccessRule(new FileSystemAccessRule("Everyone", FileSystemRights.FullControl, AccessControlType.Allow));
   //添加Users用戶組的訪問權(quán)限規(guī)則 完全控制權(quán)限
   fileSecurity.AddAccessRule(new FileSystemAccessRule("Users", FileSystemRights.FullControl, AccessControlType.Allow));
   //設(shè)置訪問權(quán)限
   fileInfo.SetAccessControl(fileSecurity);
  }

為文件夾添加完全控制權(quán)限

/// <summary>
  ///為文件夾添加users，everyone用戶組的完全控制權(quán)限
  /// </summary>
  /// <param name="dirPath"></param>
  static void AddSecurityControll2Folder(string dirPath)
  {
   //獲取文件夾信息
   DirectoryInfo dir = new DirectoryInfo(dirPath);
   //獲得該文件夾的所有訪問權(quán)限
   System.Security.AccessControl.DirectorySecurity dirSecurity = dir.GetAccessControl(AccessControlSections.All);
   //設(shè)定文件ACL繼承
   InheritanceFlags inherits = InheritanceFlags.ContainerInherit | InheritanceFlags.ObjectInherit;
   //添加ereryone用戶組的訪問權(quán)限規(guī)則 完全控制權(quán)限
   FileSystemAccessRule everyoneFileSystemAccessRule = new FileSystemAccessRule("Everyone", FileSystemRights.FullControl, inherits, PropagationFlags.None, AccessControlType.Allow);
   //添加Users用戶組的訪問權(quán)限規(guī)則 完全控制權(quán)限
   FileSystemAccessRule usersFileSystemAccessRule = new FileSystemAccessRule("Users", FileSystemRights.FullControl, inherits, PropagationFlags.None, AccessControlType.Allow);
   bool isModified = false;
   dirSecurity.ModifyAccessRule(AccessControlModification.Add, everyoneFileSystemAccessRule, out isModified);
   dirSecurity.ModifyAccessRule(AccessControlModification.Add, usersFileSystemAccessRule, out isModified);
   //設(shè)置訪問權(quán)限
   dir.SetAccessControl(dirSecurity);
  }