Remote resource access through identity impersonation

The following source: http://www.cnblogs.com/h2appy/articles/1204277.html

1 usingSystem;2 usingSystem.Collections.Generic;3 usingSystem.Linq;4 usingSystem.Text;5 usingSystem.Runtime.InteropServices;6 7 namespaceWebApplication18 {9      Public classWnethelperTen     { One  A         #regionRemote resource access through identity impersonation -  -         //Logon Types the         Const intLogon32_logon_interactive =2; -         Const intLogon32_logon_network =3; -         Const intLogon32_logon_new_credentials =9; -         //Logon Providers +         Const intLogon32_provider_default =0; -         Const intLogon32_provider_winnt50 =3; +         Const intLOGON32_PROVIDER_WINNT40 =2; A         Const intLogon32_provider_winnt35 =1; at  -[DllImport ("Advapi32.dll", CharSet = CharSet.Auto, SetLastError =true)] -          Public Static extern intLogonUser (String lpszUserName, - String Lpszdomain, - String Lpszpassword, -             intdwLogonType, in             intdwLogonProvider, -             refIntPtr phtoken); to  +[DllImport ("Advapi32.dll", CharSet = CharSet.Auto, SetLastError =true)] -          Public Static extern intDuplicateToken (IntPtr htoken, the             intImpersonationLevel, *             refIntPtr hNewToken); $ Panax Notoginseng[DllImport ("Advapi32.dll", CharSet = CharSet.Auto, SetLastError =true)] -          Public Static extern BOOLRevertToSelf (); the  +[DllImport ("Kernel32.dll", CharSet =CharSet.Auto)] A          Public Static extern BOOLCloseHandle (IntPtr handle); the  +         Private StaticSystem.Security.Principal.WindowsImpersonationContext impersonationcontext; -         /// <summary> $         ///Connecting network resources $         /// </summary> -         /// <param name= "domain" >ip/Computer name</param> -         /// <param name= "UserName" >User name</param> the         /// <param name= "password" >Password</param> -         /// <returns></returns>Wuyi          Public Static BOOLimpersonateValidUser (string domain, string userName, string password) the         { - System.Security.Principal.WindowsIdentity tempwindowsidentity; WuINTPTR token =IntPtr.Zero; -IntPtr tokenduplicate =IntPtr.Zero; About  $             if(RevertToSelf ()) -             { -                 //Here you use Logon32_logon_new_credentials to access remote resources.  -                 //if you want to implement a server program (by impersonating a user), access the local authorization database to A                 //to use logon32_logon_interactive +                 if(LogonUser (userName, domain, password, logon32_logon_new_credentials, theLogon32_provider_default,reftoken)! =0) -                 { $                     if(DuplicateToken (token,2,reftokenduplicate)! =0) the                     { thetempWindowsIdentity =NewSystem.Security.Principal.WindowsIdentity (tokenduplicate); theimpersonationcontext =tempwindowsidentity.impersonate (); the                         if(Impersonationcontext! =NULL) -                         { in System.AppDomain.CurrentDomain.SetPrincipalPolicy (System.Security.Principal.PrincipalPolic Y.windowsprincipal); theSystem.Security.Principal.IPrincipal PR =System.Threading.Thread.CurrentPrincipal; theSystem.Security.Principal.IIdentity ID =PR. Identity; About CloseHandle (token); the CloseHandle (tokenduplicate); the                             return true; the                         } +                     } -                 } the             }Bayi             if(Token! =IntPtr.Zero) the CloseHandle (token); the             if(Tokenduplicate! =IntPtr.Zero) - CloseHandle (tokenduplicate); -             return false; the         } the  the          Public Static voidundoimpersonation () the         { - Impersonationcontext.undo (); the         } the  the         #endregion94     } the}

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1 usingSystem;2 usingSystem.Collections.Generic;3 usingSystem.Linq;4 usingsystem.web;5 usingSystem.Web.UI;6 usingSystem.Web.UI.WebControls;7 usingSystem.IO;8 9 namespaceWebApplication1Ten { One      Public Partial classWebForm1:System.Web.UI.Page A     { -         protected voidPage_Load (Objectsender, EventArgs e) -         { the TestFunc (); -            -         } -  +          Public voidTestFunc () -         { +             BOOLisimpersonated =false; A             Try at             { -                 if(Wnethelper.impersonatevaliduser ("netnetnet-pc","admin2","123")) -                 { -isimpersonated =true; -System.IO.File.Copy (@"\\Netnetnet-pc\ site Release \a.txt","D:\\a1.txt",true); -                 } in             } -             finally to             { +                 if(isimpersonated) - wnethelper.undoimpersonation (); the             } *         } $     }Panax Notoginseng}

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Remote resource access through identity impersonation