public void Unload()
{
// See https://msdn.microsoft.com/en-us/library/windows/desktop/bb762282(v=vs.85).aspx
// This function closes the registry handle for the user profile too
Win32Helper.Invoke(() => UnloadUserProfile(token.Handle, userProfile),
$"Failed to unload user profile for user '{token.Username}'");
}
public static void GrantAccessToWindowStationAndDesktop(string username, string?domainName = null)
{
var hWindowStation = Win32Helper.Invoke(() => GetProcessWindowStation(), "Failed to get a handle to the current window station for this process");
const int windowStationAllAccess = 0x000f037f;
GrantAccess(username, domainName, hWindowStation, windowStationAllAccess);
var hDesktop = Win32Helper.Invoke(() => GetThreadDesktop(GetCurrentThreadId()), "Failed to the a handle to the desktop for the current thread");
const int desktopRightsAllAccess = 0x000f01ff;
GrantAccess(username, domainName, hDesktop, desktopRightsAllAccess);
}
public static UserProfile Load(AccessToken token)
{
var userProfile = new PROFILEINFO
{
lpUserName = token.Username
};
userProfile.dwSize = Marshal.SizeOf(userProfile);
// See https://msdn.microsoft.com/en-us/library/windows/desktop/bb762281(v=vs.85).aspx
Win32Helper.Invoke(() => LoadUserProfile(token.Handle, ref userProfile),
$"Failed to load user profile for user '{token.Username}'");
return(new UserProfile(token, new SafeRegistryHandle(userProfile.hProfile, false)));
}
public static AccessToken Logon(string username,
string password,
string domain = ".",
LogonType logonType = LogonType.Network,
LogonProvider logonProvider = LogonProvider.Default)
{
// See https://msdn.microsoft.com/en-us/library/windows/desktop/aa378184(v=vs.85).aspx
var hToken = IntPtr.Zero;
Win32Helper.Invoke(() => LogonUser(username,
domain,
password,
LogonType.Network,
LogonProvider.Default,
out hToken),
$"Logon failed for the user '{username}'");
return(new AccessToken(username, new SafeAccessTokenHandle(hToken)));
}
internal static Dictionary <string, string> GetEnvironmentVariablesForUser(AccessToken token, bool inheritFromCurrentProcess)
{
var env = IntPtr.Zero;
// See https://msdn.microsoft.com/en-us/library/windows/desktop/bb762270(v=vs.85).aspx
Win32Helper.Invoke(() => CreateEnvironmentBlock(out env, token.Handle, inheritFromCurrentProcess),
$"Failed to load the environment variables for the user '{token.Username}'");
var userEnvironment = new Dictionary <string, string>();
try
{
var testData = new StringBuilder();
unsafe
{
// The environment block is an array of null-terminated Unicode strings.
// Key and Value are separated by =
// The list ends with two nulls (\0\0).
var start = (short *)env.ToPointer();
var done = false;
var current = start;
while (!done)
{
if (testData.Length > 0 && *current == 0 && current != start)
{
var data = testData.ToString();
var index = data.IndexOf('=');
if (index == -1)
{
userEnvironment.Add(data, "");
}
else if (index == data.Length - 1)
{
userEnvironment.Add(data.Substring(0, index), "");
}
else
{
userEnvironment.Add(data.Substring(0, index), data.Substring(index + 1));
}
testData.Length = 0;
}
if (*current == 0 && current != start && *(current - 1) == 0)
{
done = true;
}
if (*current != 0)
{
testData.Append((char)*current);
}
current++;
}
}
}
finally
{
// See https://msdn.microsoft.com/en-us/library/windows/desktop/bb762274(v=vs.85).aspx
Win32Helper.Invoke(() => DestroyEnvironmentBlock(env),
$"Failed to destroy the environment variables structure for user '{token.Username}'");
}
return(userEnvironment);
}
