Asp.net 访问共享目录远程存储数据库

最新推荐文章于 2022-04-12 13:58:23 发布

原创最新推荐文章于 2022-04-12 13:58:23 发布 · 625 阅读

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本文介绍了一个C#示例程序，该程序通过使用Windows API函数如LogonUser、ImpersonateLoggedOnUser等实现了身份冒充的功能，进而允许程序以指定用户的权限运行特定操作。文中提供了一个名为IdentityScope的类，它利用了using语句确保资源得到妥善释放。

public class IdentityScope : IDisposable { // obtains user token [DllImport("advapi32.dll", SetLastError = true)] static extern bool LogonUser(string pszUsername, string pszDomain, string pszPassword, int dwLogonType, int dwLogonProvider, ref IntPtr phToken); // closes open handes returned by LogonUser [DllImport("kernel32.dll", CharSet = CharSet.Auto)] extern static bool CloseHandle(IntPtr handle); [DllImport("Advapi32.DLL")] static extern bool ImpersonateLoggedOnUser(IntPtr hToken); [DllImport("Advapi32.DLL")] static extern bool RevertToSelf(); const int LOGON32_PROVIDER_DEFAULT = 0; const int LOGON32_LOGON_NEWCREDENTIALS = 9;//域控中的需要用:Interactive = 2 private bool disposed; public IdentityScope(string sUsername, string sDomain, string sPassword) { // initialize tokens IntPtr pExistingTokenHandle = new IntPtr(0); IntPtr pDuplicateTokenHandle = new IntPtr(0); try { // get handle to token bool bImpersonated = LogonUser(sUsername, sDomain, sPassword, LOGON32_LOGON_NEWCREDENTIALS, LOGON32_PROVIDER_DEFAULT, ref pExistingTokenHandle); if (true == bImpersonated) { if (!ImpersonateLoggedOnUser(pExistingTokenHandle)) { int nErrorCode = Marshal.GetLastWin32Error(); throw new Exception("ImpersonateLoggedOnUser error;Code=" + nErrorCode); } } else { int nErrorCode = Marshal.GetLastWin32Error(); throw new Exception("LogonUser error;Code=" + nErrorCode); } } finally { // close handle(s) if (pExistingTokenHandle != IntPtr.Zero) CloseHandle(pExistingTokenHandle); if (pDuplicateTokenHandle != IntPtr.Zero) CloseHandle(pDuplicateTokenHandle); } } protected virtual void Dispose(bool disposing) { if (!disposed) { RevertToSelf(); disposed = true; } } public void Dispose() { Dispose(true); } } //调用;指定共享机器上的用户名,机器名,密码,(不在域控中的.) using (IdentityScope c = new IdentityScope("userId", "192.168.0.1", "psw")) {//在此就可以访问了. string[] filelist = System.IO.Directory.GetDirectories(@"//192.168.0.1/folderName"); //如果是上传,用file.Saveas(路径)就可以了 }