如果我想用 UNC 路径实例化一个 DirectoryInfo 对象

DirectoryInfo myDI = new DirectoryInfo (@"\\server\share");

如何传递访问该共享所需的用户名/密码？

谢谢

最佳答案

在 .NET 4 中，这个类非常适合我通过 UNC 登录非 Windows 服务器。

using Microsoft.VisualBasic;
using System;
using System.Collections;
using System.Collections.Generic;
using System.Data;
using System.Diagnostics;
using System.Linq;
using System.Web;
using System.Runtime.InteropServices;
using System.Security.Principal;
using System.Web.Security;


namespace toolsforimpersonations
{
    public class Impersonator
    {
        #region "Consts"

        public const int LOGON32_LOGON_INTERACTIVE = 2;

        public const int LOGON32_PROVIDER_DEFAULT = 0;
        #endregion

        #region "External API"
        [DllImport("advapi32.dll", SetLastError = true)]
        public static extern int LogonUser(string lpszUsername, string lpszDomain, string lpszPassword, int dwLogonType, int dwLogonProvider, ref IntPtr phToken);

        [DllImport("advapi32.dll", SetLastError = true)]
        public static extern bool RevertToSelf();

        [DllImport("kernel32.dll", SetLastError = true)]
        public static extern int CloseHandle(IntPtr hObject);

        #endregion

        #region "Methods"

        //Public Sub PerformImpersonatedTask(ByVal username As String, ByVal domain As String, ByVal password As String, ByVal logonType As Integer, ByVal logonProvider As Integer, ByVal methodToPerform As Action)
        public void PerformImpersonatedTask(string username, string domain, string password, int logonType, int logonProvider, Action methodToPerform)
        {
            IntPtr token = IntPtr.Zero;
            if (RevertToSelf()) {
                if (LogonUser(username, domain, password, logonType, logonProvider, ref token) != 0) {
                    dynamic identity = new WindowsIdentity(token);
                    dynamic impersonationContext = identity.Impersonate();
                    if (impersonationContext != null) {
                        methodToPerform.Invoke();
                        impersonationContext.Undo();
                    }
                // do logging
                } else {
                }
            }
            if (token != IntPtr.Zero) {
                CloseHandle(token);
            }
        }

        #endregion
    }

    public class UserImpersonation
    {
        const int  LOGON32_LOGON_INTERACTIVE = 2;
        const int  LOGON32_LOGON_NETWORK = 3;
        const int  LOGON32_LOGON_BATCH = 4;
        const int  LOGON32_LOGON_SERVICE = 5;
        const int  LOGON32_LOGON_UNLOCK = 7;
        const int  LOGON32_LOGON_NETWORK_CLEARTEXT = 8;
        const int  LOGON32_LOGON_NEW_CREDENTIALS = 9;
        const int  LOGON32_PROVIDER_DEFAULT = 0;
        const int  LOGON32_PROVIDER_WINNT35 = 1;
        const int  LOGON32_PROVIDER_WINNT40 = 2;
        const int  LOGON32_PROVIDER_WINNT50 = 3;

        WindowsImpersonationContext impersonationContext;
        [DllImport("advapi32.dll", CharSet = CharSet.Ansi, SetLastError = true, ExactSpelling = true)]
        public static extern int LogonUserA(string lpszUsername, string lpszDomain, string lpszPassword, int dwLogonType, int dwLogonProvider, ref IntPtr phToken);
        [DllImport("advapi32.dll", CharSet = CharSet.Auto, SetLastError = true, ExactSpelling = true)]

        public static extern int DuplicateToken(IntPtr ExistingTokenHandle, int ImpersonationLevel, ref IntPtr DuplicateTokenHandle);
        [DllImport("advapi32.dll", CharSet = CharSet.Auto, SetLastError = true, ExactSpelling = true)]

        public static extern long RevertToSelf();
        [DllImport("kernel32.dll", CharSet = CharSet.Auto, SetLastError = true, ExactSpelling = true)]
        public static extern long CloseHandle(IntPtr handle);

        public bool impersonateUser(string userName, string domain, string password)
        {
            return impersonateValidUser(userName, domain, password);
        }

        public void undoimpersonateUser()
        {
            undoImpersonation();
        }

        private bool impersonateValidUser(string userName, string domain, string password)
        {
            bool functionReturnValue = false;

            WindowsIdentity tempWindowsIdentity = null;
            IntPtr token = IntPtr.Zero;
            IntPtr tokenDuplicate = IntPtr.Zero;
            functionReturnValue = false;

            //if (RevertToSelf()) {
                if (LogonUserA(userName, domain, password, LOGON32_LOGON_NEW_CREDENTIALS, LOGON32_PROVIDER_WINNT50, ref token) != 0) {
                    if (DuplicateToken(token, 2, ref tokenDuplicate) != 0) {
                        tempWindowsIdentity = new WindowsIdentity(tokenDuplicate);
                        impersonationContext = tempWindowsIdentity.Impersonate();
                        if ((impersonationContext != null)) {
                            functionReturnValue = true;
                        }
                    }
                }
            //}
            if (!tokenDuplicate.Equals(IntPtr.Zero)) {
                CloseHandle(tokenDuplicate);
            }
            if (!token.Equals(IntPtr.Zero)) {
                CloseHandle(token);
            }
            return functionReturnValue;
        }

        private void undoImpersonation()
        {
            impersonationContext.Undo();
        }

    }
}

这是如何在你的程序中使用

UserImpersonation impersonator = new UserImpersonation();
        impersonator.impersonateUser("username", "", "password"); //No Domain is required

        List<FileInfo> OcDialerlfinfo = null;
        OcDialerlfinfo = GetFileList("*", "\\\\10.11.11.122\\shared_folder");
        impersonator.undoimpersonateUser();

为了测试，您需要使用这个小函数来列出目录中的所有文件

public static List<FileInfo> GetFileList(string fileSearchPattern, string rootFolderPath)
        {
            DirectoryInfo rootDir = new DirectoryInfo(rootFolderPath);

            List<DirectoryInfo> dirList = new List<DirectoryInfo>(rootDir.GetDirectories("*", SearchOption.AllDirectories));
            dirList.Add(rootDir);

            List<FileInfo> fileList = new List<FileInfo>();

            foreach (DirectoryInfo dir in dirList)
            {
                fileList.AddRange(dir.GetFiles(fileSearchPattern, SearchOption.TopDirectoryOnly));
            }

            return fileList;
        }

关于C#:使用 DirectoryInfo 时如何登录共享，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/1232120/