internal static PSCredential CredUIPromptForCredentials(
string caption, string message, string userName, string targetName,
PSCredentialTypes allowedCredentialTypes, PSCredentialUIOptions options,
IntPtr parentHwnd = default(IntPtr))
{
PSCredential credential = null;
var info = new CreduiInfo
{
pszCaptionText = caption,
pszMessageText = message
};
var pszUserName = new StringBuilder(userName, 0x201);
var pszPassword = new StringBuilder(0x100);
int pfSave = Convert.ToInt32(false);
info.cbSize = Marshal.SizeOf(info);
info.hwndParent = parentHwnd;
var dwFlags = CreduiFlags.DO_NOT_PERSIST;
if ((allowedCredentialTypes & PSCredentialTypes.Domain) != PSCredentialTypes.Domain)
{
dwFlags |= CreduiFlags.GENERIC_CREDENTIALS;
if ((options & PSCredentialUIOptions.AlwaysPrompt) == PSCredentialUIOptions.AlwaysPrompt)
{
dwFlags |= CreduiFlags.ALWAYS_SHOW_UI;
}
}
var codes = CredUiReturnCodes.ERROR_INVALID_PARAMETER;
if ((pszUserName.Length <= 0x201) &&
(pszPassword.Length <= 0x100))
{
codes = CredUIPromptForCredentials(
ref info, targetName, IntPtr.Zero, 0, pszUserName,
0x201, pszPassword, 0x100, ref pfSave, dwFlags);
}
if (codes == CredUiReturnCodes.NO_ERROR)
{
string providedUserName = pszUserName.ToString();
var providedPassword = new SecureString();
for (int i = 0; i < pszPassword.Length; i++)
{
providedPassword.AppendChar(pszPassword[i]);
pszPassword[i] = '\0';
}
providedPassword.MakeReadOnly();
if (!String.IsNullOrEmpty(providedUserName))
{
credential = new PSCredential(providedUserName, providedPassword);
}
}
return(credential);
}
internal static PSCredential CredUIPromptForCredentials(
string caption, string message, string userName, string targetName,
PSCredentialTypes allowedCredentialTypes, PSCredentialUIOptions options,
IntPtr parentHwnd = default(IntPtr))
{
PSCredential credential = null;
var info = new CreduiInfo
{
pszCaptionText = caption,
pszMessageText = message
};
var pszUserName = new StringBuilder(userName, 0x201);
var pszPassword = new StringBuilder(0x100);
int pfSave = Convert.ToInt32(false);
info.cbSize = Marshal.SizeOf(info);
info.hwndParent = parentHwnd;
var dwFlags = CreduiFlags.DO_NOT_PERSIST;
if ((allowedCredentialTypes & PSCredentialTypes.Domain) != PSCredentialTypes.Domain)
{
dwFlags |= CreduiFlags.GENERIC_CREDENTIALS;
if ((options & PSCredentialUIOptions.AlwaysPrompt) == PSCredentialUIOptions.AlwaysPrompt)
{
dwFlags |= CreduiFlags.ALWAYS_SHOW_UI;
}
}
var codes = CredUiReturnCodes.ERROR_INVALID_PARAMETER;
if ((pszUserName.Length <= 0x201) && (pszPassword.Length <= 0x100))
{
codes = CredUIPromptForCredentials(
ref info, targetName, IntPtr.Zero, 0, pszUserName,
0x201, pszPassword, 0x100, ref pfSave, dwFlags);
}
if (codes == CredUiReturnCodes.NO_ERROR)
{
string providedUserName = pszUserName.ToString();
var providedPassword = new SecureString();
for (int i = 0; i < pszPassword.Length; i++)
{
providedPassword.AppendChar(pszPassword[i]);
pszPassword[i] = '\0';
}
providedPassword.MakeReadOnly();
if (!String.IsNullOrEmpty(providedUserName))
{
credential = new PSCredential(providedUserName, providedPassword);
}
}
return credential;
}
private static extern int CredUIPromptForWindowsCredentials(ref CreduiInfo notUsedHere,
int authError,
ref uint authPackage,
IntPtr inAuthBuffer,
uint inAuthBufferSize,
out IntPtr refOutAuthBuffer,
out uint refOutAuthBufferSize,
ref bool fSave,
int flags);
public static void GetCredentialsVistaAndUp(out NetworkCredential networkCredential, string captionText = null, string message = null)
{
var credui = new CreduiInfo
{
pszCaptionText = captionText ?? "Please enter the credentails",
pszMessageText = message ?? ""
};
credui.cbSize = Marshal.SizeOf(credui);
uint authPackage = 0;
IntPtr outCredBuffer;
uint outCredSize;
var save = false;
var result = CredUIPromptForWindowsCredentials(ref credui,
0,
ref authPackage,
IntPtr.Zero,
0,
out outCredBuffer,
out outCredSize,
ref save,
1 /* Generic */);
var usernameBuf = new StringBuilder(100);
var passwordBuf = new StringBuilder(100);
var domainBuf = new StringBuilder(100);
var maxUserName = 100;
var maxDomain = 100;
var maxPassword = 100;
if (result == 0)
{
if (CredUnPackAuthenticationBuffer(0, outCredBuffer, outCredSize, usernameBuf, ref maxUserName,
domainBuf, ref maxDomain, passwordBuf, ref maxPassword))
{
//TODO: ms documentation says we should call this but i can't get it to work
//SecureZeroMem(outCredBuffer, outCredSize);
//clear the memory allocated by CredUIPromptForWindowsCredentials
CoTaskMemFree(outCredBuffer);
networkCredential = new NetworkCredential()
{
UserName = usernameBuf.ToString(),
Password = passwordBuf.ToString(),
Domain = domainBuf.ToString()
};
return;
}
}
networkCredential = null;
}
private static extern CredUiReturnCodes CredUIPromptForCredentials(ref CreduiInfo pUiInfo, string pszTargetName, IntPtr reserved, int dwAuthError, StringBuilder pszUserName, int ulUserNameMaxChars, StringBuilder pszPassword, int ulPasswordMaxChars, ref int pfSave, CreduiFlags dwFlags);
public long GetCredential(string captionText, string messageText, IntPtr parentHandle, out NetworkCredential networkCredential)
{
var save = false;
var errorcode = 0;
uint dialogReturn;
uint authPackage = 0;
IntPtr outCredBuffer;
uint outCredSize;
var credui = new CreduiInfo();
credui.Size = Marshal.SizeOf(credui);
credui.PszCaptionText = captionText;
credui.PszMessageText = messageText;
credui.HwndParent = parentHandle;
while (true) // Show the dialog again and again, until Cancel is clicked or the entered credentials are correct.
{
// Show the dialog
dialogReturn = CredUIPromptForWindowsCredentials(ref credui,
errorcode,
ref authPackage,
IntPtr.Zero, // A specific username can be forced to be shown in the dialog from here. Create it with 'CredPackAuthenticationBuffer()'. Then, the buffer goes here...
0, // ...and the size goes here. You also have to add CREDUIWIN_IN_CRED_ONLY to the flags (last argument).
out outCredBuffer,
out outCredSize,
ref save,
PromptForWindowsCredentialsFlags.CreduiwinGeneric); // Use the PromptForWindowsCredentialsFlags-Enum here. You can use multiple flags if you seperate them with | .
if (dialogReturn != 0) // cancel returns 1223
{
errorcode = (int)dialogReturn;
break; // Break, if Cancel was clicked or an error occurred
}
var usernameBuf = new StringBuilder(100);
var passwordBuf = new StringBuilder(100);
var domainBuf = new StringBuilder(100);
var maxUserName = 100;
var maxDomain = 100;
var maxPassword = 100;
var credentialEnteredCorrect = false;
if (dialogReturn == 0)
{
credentialEnteredCorrect = CredUnPackAuthenticationBuffer(0, outCredBuffer, outCredSize, usernameBuf, ref maxUserName, domainBuf, ref maxDomain, passwordBuf, ref maxPassword);
if (credentialEnteredCorrect)
{
// clear the memory allocated by CredUIPromptForWindowsCredentials
CoTaskMemFree(outCredBuffer);
networkCredential = new NetworkCredential()
{
UserName = usernameBuf.ToString(),
Password = passwordBuf.ToString(),
Domain = domainBuf.ToString()
};
return(errorcode);
}
else
{
errorcode = 1326;
}
networkCredential = null;
}
}
networkCredential = null;
return(errorcode);
}
private static extern CredUiReturnCodes CredUIPromptForCredentials(ref CreduiInfo pUiInfo, string pszTargetName, IntPtr reserved, int dwAuthError, StringBuilder pszUserName, int ulUserNameMaxChars, StringBuilder pszPassword, int ulPasswordMaxChars, ref int pfSave, CreduiFlags dwFlags);
