//TODO: Should be internal. Need to figure out how to get to the companies list before they are fully auth'd.
// public ImpersonationData ImpersonateMasterUser()
// {
// ImpersonationData impData = DoImpersonation(Registry.GetInitialCredentials());
// impData.Identity.Impersonate();
// return impData;
// }
ImpersonationData DoImpersonation(NTCredential credential)
{
IntPtr tokenHandle = new IntPtr(0);
IntPtr dupeTokenHandle = new IntPtr(0);
WindowsImpersonationContext impersonatedUser = null;
// Get the user token for the specified user, machine, and password using the
// unmanaged LogonUser method.
const int LOGON32_LOGON_NETWORK_CLEARTEXT = 8;
const int LOGON32_LOGON_INTERACTIVE = 2;
//const int LOGON32_LOGON_NEW_CREDENTIALS = 9;
//const int LOGON32_PROVIDER_WINNT50 = 3;
const int LOGON32_PROVIDER_DEFAULT = 0;
//This parameter causes LogonUser to create a primary token.
//const int LOGON32_LOGON_NETWORK = 3;
const int SecurityImpersonation = 2;
// Call LogonUser to obtain a handle to an access token.
bool returnValue = LogonUser(credential.UserName, credential.DomainName, credential.Password,
LOGON32_LOGON_INTERACTIVE , LOGON32_PROVIDER_DEFAULT,
ref tokenHandle);
if (false == returnValue)
{
int ret = Marshal.GetLastWin32Error();
throw new Exception(String.Format("LogonUser failed with error code : {0}, message: {1}", ret, GetErrorMessage(ret)));
}
bool retVal = DuplicateToken(tokenHandle, SecurityImpersonation, ref dupeTokenHandle);
if (false == retVal)
{
CloseHandle(tokenHandle);
}
// The token that is passed to the following constructor must
// be a primary token in order to use it for impersonation.
WindowsIdentity newId = new WindowsIdentity(dupeTokenHandle);
impersonatedUser = newId.Impersonate();
return new ImpersonationData(tokenHandle,dupeTokenHandle,newId,impersonatedUser);
}
public ImpersonationData Impersonate(NTCredential credential)
{
return DoImpersonation(credential);
}
