145 lines
4.7 KiB
C#
145 lines
4.7 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Security.Principal;
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using System.Runtime.InteropServices;
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using System.IO;
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namespace Payroll.BO
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{
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[Serializable]
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public class FileAccessWithImpersonation
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{
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#region Declaration
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string userName = string.Empty;// "chapal" ;
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string domain = string.Empty;// "CEL";
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string password = string.Empty;// "cpl!@#45";
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string target = string.Empty;// @"\\CEL02\d$\Images\";
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/// <summary>
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/// This is 9 if There is No Domain Defined and 2 otherwise
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/// </summary>
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public const int LOGON32_LOGON_INTERACTIVE = 9; //2;
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/// <summary>
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/// This is 3 if There is No Domain Defined and 0 otherwise
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/// </summary>
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public const int LOGON32_PROVIDER_DEFAULT = 3;//0;
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WindowsImpersonationContext impersonationContext;
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#endregion
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#region Functions
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[DllImport("advapi32.dll")]
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public static extern int LogonUserA(String lpszUserName,
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String lpszDomain,
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String lpszPassword,
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int dwLogonType,
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int dwLogonProvider,
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ref IntPtr phToken);
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[DllImport("advapi32.dll", CharSet = CharSet.Auto, SetLastError = true)]
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public static extern int DuplicateToken(IntPtr hToken,
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int impersonationLevel,
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ref IntPtr hNewToken);
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[DllImport("advapi32.dll", CharSet = CharSet.Auto, SetLastError = true)]
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public static extern bool RevertToSelf();
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[DllImport("kernel32.dll", CharSet = CharSet.Auto)]
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public static extern bool CloseHandle(IntPtr handle);
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private bool impersonateValidUser()
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{
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WindowsIdentity tempWindowsIdentity;
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IntPtr token = IntPtr.Zero;
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IntPtr tokenDuplicate = IntPtr.Zero;
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domain = Ease.CoreV35.Utility.ConfigUtility.GetAppSettings("ADDomain");
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userName = Ease.CoreV35.Utility.ConfigUtility.GetAppSettings("ADUser");
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password = Ease.CoreV35.Utility.ConfigUtility.GetAppSettings("ADPassword");
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password = Ease.CoreV35.Utility.Global.CipherFunctions.Decrypt("Cel.Admin", password);
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if (RevertToSelf())
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{
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if (LogonUserA(userName, domain, password, LOGON32_LOGON_INTERACTIVE,
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LOGON32_PROVIDER_DEFAULT, ref token) != 0)
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{
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if (DuplicateToken(token, 2, ref tokenDuplicate) != 0)
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{
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tempWindowsIdentity = new WindowsIdentity(tokenDuplicate);
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impersonationContext = tempWindowsIdentity.Impersonate();
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if (impersonationContext != null)
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{
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CloseHandle(token);
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CloseHandle(tokenDuplicate);
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return true;
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}
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}
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}
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}
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if (token != IntPtr.Zero)
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CloseHandle(token);
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if (tokenDuplicate != IntPtr.Zero)
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CloseHandle(tokenDuplicate);
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return false;
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}
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private void undoImpersonation()
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{
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if(impersonationContext!=null)
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impersonationContext.Undo();
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}
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public void UploadFile(string TargetFolder,string FullFilePath,string NewFileName)
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{
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//System.IO.FileStream fs = null;
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//fs = System.IO.File.Open(FullFilePath , System.IO.FileMode.Open);
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//byte[] bytes = new byte[fs.Length];
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//fs.Read(bytes , 0 , Convert.ToInt32(fs.Length));
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byte[] bytes = File.ReadAllBytes(FullFilePath);
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try
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{
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if (impersonateValidUser())
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{
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//string[] Files = Directory.GetFiles(TargetFolder);
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string fullTargetPath = TargetFolder + "\\" + NewFileName;
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File.WriteAllBytes(fullTargetPath, bytes);
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}
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}
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finally
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{
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undoImpersonation();
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}
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}
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public byte[] GetFileInBytes(string SourceFolder, string FileName)
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{
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byte[] bytes = null;
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try
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{
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if (impersonateValidUser())
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{
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string fullSourcePath = SourceFolder+ "\\" + FileName;
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bytes = File.ReadAllBytes(fullSourcePath);
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}
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}
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finally
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{
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undoImpersonation();
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}
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return bytes;
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}
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#endregion
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}
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}
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