private static bool ShowPrompt()
{
bool flag = false;
int authError = 0;
uint num = 0u;
PromptForCredentials.CREDUI_INFO cREDUI_INFO = default(PromptForCredentials.CREDUI_INFO);
cREDUI_INFO.cbSize = Marshal.SizeOf(cREDUI_INFO);
cREDUI_INFO.pszCaptionText = "Connect to your application";
cREDUI_INFO.pszMessageText = "Enter your credentials!";
cREDUI_INFO.hwndParent = Application.MainWindow.Handle;
while (true)
{
IntPtr intPtr;
uint num3;
uint num2 = PromptForCredentials.CredUIPromptForWindowsCredentials(ref cREDUI_INFO, authError, ref num, (IntPtr)0, 0u, out intPtr, out num3, ref flag, (PromptForCredentials.PromptForWindowsCredentialsFlags) 0);
if (num2 != 0u)
{
break;
}
bool flag2 = false;
if (flag2)
{
return(true);
}
authError = 1326;
}
return(false);
}
public static bool GetCredentials(string captionText, string messageText, string userName, out NetworkCredential networkCredential)
{
if (PromptForCredentials.IsWinVistaOrHigher())
{
return(PromptForCredentials.GetCredentialsNewStyle(captionText, messageText, userName, out networkCredential));
}
return(PromptForCredentials.GetCredentialsOldSchool(captionText, messageText, userName, out networkCredential));
}
private static bool GetCredentialsNewStyle(string captionText, string messageText, string userName, out NetworkCredential networkCredential)
{
PromptForCredentials.CREDUI_INFO cREDUI_INFO = default(PromptForCredentials.CREDUI_INFO);
cREDUI_INFO.pszCaptionText = captionText;
cREDUI_INFO.pszMessageText = messageText;
cREDUI_INFO.hwndParent = Application.MainWindow.Handle;
string empty = string.Empty;
int num = 0;
IntPtr intPtr = IntPtr.Zero;
PromptForCredentials.CredPackAuthenticationBuffer(0, userName, empty, IntPtr.Zero, ref num);
if (num > 0)
{
intPtr = Marshal.AllocCoTaskMem(num);
PromptForCredentials.CredPackAuthenticationBuffer(0, userName, empty, intPtr, ref num);
}
cREDUI_INFO.cbSize = Marshal.SizeOf(cREDUI_INFO);
uint num2 = 0u;
IntPtr intPtr2 = (IntPtr)0;
bool flag = false;
uint cbAuthBuffer;
uint num3 = PromptForCredentials.CredUIPromptForWindowsCredentials(ref cREDUI_INFO, 0, ref num2, intPtr, 1024u, out intPtr2, out cbAuthBuffer, ref flag, PromptForCredentials.PromptForWindowsCredentialsFlags.CREDUIWIN_GENERIC);
if (num3 != 0u)
{
networkCredential = null;
return(false);
}
StringBuilder stringBuilder = new StringBuilder(100);
StringBuilder stringBuilder2 = new StringBuilder(100);
StringBuilder stringBuilder3 = new StringBuilder(100);
int num4 = 100;
int num5 = 100;
int num6 = 100;
if (num3 == 0u && PromptForCredentials.CredUnPackAuthenticationBuffer(0, intPtr2, cbAuthBuffer, stringBuilder, ref num4, stringBuilder3, ref num5, stringBuilder2, ref num6))
{
PromptForCredentials.CoTaskMemFree(intPtr2);
networkCredential = new NetworkCredential
{
UserName = stringBuilder.ToString(),
Password = stringBuilder2.ToString(),
Domain = stringBuilder3.ToString()
};
return(true);
}
networkCredential = null;
return(false);
}
private static bool GetCredentialsOldSchool(string captionText, string messageText, string userName, out NetworkCredential networkCredential)
{
StringBuilder stringBuilder = new StringBuilder();
StringBuilder stringBuilder2 = new StringBuilder(userName);
PromptForCredentials.CREDUI_INFO cREDUI_INFO = default(PromptForCredentials.CREDUI_INFO);
cREDUI_INFO.cbSize = Marshal.SizeOf(cREDUI_INFO);
bool flag = false;
cREDUI_INFO.pszCaptionText = captionText;
PromptForCredentials.CREDUI_FLAGS flags = PromptForCredentials.CREDUI_FLAGS.ALWAYS_SHOW_UI | PromptForCredentials.CREDUI_FLAGS.GENERIC_CREDENTIALS;
if (PromptForCredentials.CredUIPromptForCredentials(ref cREDUI_INFO, messageText, IntPtr.Zero, 0, stringBuilder2, 100, stringBuilder, 100, ref flag, flags) == PromptForCredentials.CredUIReturnCodes.NO_ERROR)
{
string userName2 = stringBuilder2.ToString();
string password = stringBuilder.ToString();
networkCredential = new NetworkCredential(userName2, password);
return(true);
}
networkCredential = null;
return(false);
}