/// <summary>
/// Prompt for credentials
/// </summary>
/// <param name="target">Target to the credentials</param>
/// <param name="username">receives user name</param>
/// <param name="password">receives password associated</param>
/// <param name="fSave">receives if credentials are saved.</param>
/// <param name="fConsole">Is this a console application</param>
/// <param name="hwndParent">Parent window handle</param>
/// <param name="flags">options for the window.</param>
/// <param name="message">Message to end user included in the window.</param>
internal static void PromptForCredentials(string target, ref string username, ref SecureString password, ref bool fSave, bool fConsole, IntPtr hwndParent, CredentialNativeMethods.CREDUI_FLAGS flags, string message)
{
CredentialNativeMethods.CREDUI_INFO info = new CredentialNativeMethods.CREDUI_INFO();
int result;
int saveCredentials;
StringBuilder user = new StringBuilder(username, CRED_MAX_USERNAME_LENGTH);
StringBuilder pwd = new StringBuilder(CRED_MAX_PASSWORD_LENGTH);
saveCredentials = 0;
info.cbSize = Marshal.SizeOf(info);
info.hwndParent = hwndParent;
if (!string.IsNullOrEmpty(message))
{
// Use default message text, when message is not specified.
info.pszMessageText = message;
}
if (fConsole)
{
result = CredentialNativeMethods.CredUICmdLinePromptForCredentials(target,
IntPtr.Zero,
0,
user,
CRED_MAX_USERNAME_LENGTH,
pwd,
CRED_MAX_PASSWORD_LENGTH,
ref saveCredentials,
flags);
}
else
{
if (hwndParent == new IntPtr(-1))
{
throw new System.Security.Authentication.InvalidCredentialException();
}
result = CredentialNativeMethods.CredUIPromptForCredentials(ref info,
target,
IntPtr.Zero,
0,
user,
CRED_MAX_USERNAME_LENGTH,
pwd,
CRED_MAX_PASSWORD_LENGTH,
ref saveCredentials,
flags);
}
if (result != 0)
{
throw new System.ComponentModel.Win32Exception(result);
}
fSave = (saveCredentials != 0);
username = user.ToString();
password = new SecureString();
for (int i = 0; i < pwd.Length; i++)
{
password.AppendChar(pwd[i]);
pwd[i] = ' '; // overwrite the cleartext password
}
password.MakeReadOnly();
}
/// <summary>
/// Prompt for credentials
/// </summary>
/// <param name="target">Target to the credentials</param>
/// <param name="username">receives user name</param>
/// <param name="password">receives password associated</param>
/// <param name="fSave">receives if credentials are saved.</param>
/// <param name="fConsole">Is this a console application</param>
/// <param name="hwndParent">Parent window handle</param>
/// <param name="flags">options for the window.</param>
/// <param name="message">Message to end user included in the window.</param>
internal static void PromptForCredentials(string target, ref string username, ref SecureString password, ref bool fSave, bool fConsole, IntPtr hwndParent, CredentialNativeMethods.CREDUI_FLAGS flags, string message)
{
CredentialNativeMethods.CREDUI_INFO info = new CredentialNativeMethods.CREDUI_INFO();
int result;
int saveCredentials;
StringBuilder user = new StringBuilder(username, CRED_MAX_USERNAME_LENGTH);
StringBuilder pwd = new StringBuilder(CRED_MAX_PASSWORD_LENGTH);
saveCredentials = 0;
info.cbSize = Marshal.SizeOf(info);
info.hwndParent = hwndParent;
if (!string.IsNullOrEmpty(message))
{
// Use default message text, when message is not specified.
info.pszMessageText = message;
}
if (fConsole)
{
result = CredentialNativeMethods.CredUICmdLinePromptForCredentials(target,
IntPtr.Zero,
0,
user,
CRED_MAX_USERNAME_LENGTH,
pwd,
CRED_MAX_PASSWORD_LENGTH,
ref saveCredentials,
flags);
}
else
{
if (hwndParent == new IntPtr(-1))
{
throw new System.Security.Authentication.InvalidCredentialException();
}
result = CredentialNativeMethods.CredUIPromptForCredentials(ref info,
target,
IntPtr.Zero,
0,
user,
CRED_MAX_USERNAME_LENGTH,
pwd,
CRED_MAX_PASSWORD_LENGTH,
ref saveCredentials,
flags);
}
if (result != 0)
{
throw new System.ComponentModel.Win32Exception(result);
}
fSave = (saveCredentials != 0);
username = user.ToString();
password = new SecureString();
for (int i = 0; i < pwd.Length; i++)
{
password.AppendChar(pwd[i]);
pwd[i] = ' '; // overwrite the cleartext password
}
password.MakeReadOnly();
}
