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Add support for specifying credential dialog's dwAuthError parameter #60

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Add support for specifying credential dialog's dwAuthError parameter #60

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32 changes: 20 additions & 12 deletions src/Ookii.Dialogs.WinForms/CredentialDialog.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -50,6 +50,12 @@ namespace Ookii.Dialogs.WinForms
[DefaultProperty("MainInstruction"), DefaultEvent("UserNameChanged"), Description("Allows access to credential UI for generic credentials.")]
public partial class CredentialDialog : Component
{
/// <summary>
/// The logon attempt failed
/// </summary>
/// <remarks>A possible value for the authError parameter. Imported from WinError.h.</remarks>
public const int SEC_E_LOGON_DENIED = unchecked((int)0x8009030C);

private string _confirmTarget;
private NetworkCredential _credentials = new NetworkCredential();
private bool _isSaveChecked;
Expand Down Expand Up @@ -381,10 +387,10 @@ public string Content
/// </remarks>
public bool IsStoredCredential { get; private set; }


/// <summary>
/// Shows the credentials dialog as a modal dialog.
/// </summary>
/// <param name="authError">An optionally provided Windows error specifying why the credential dialog box is needed, for example <see cref="SEC_E_LOGON_DENIED"/>.</param>
/// <returns><see cref="DialogResult.OK" /> if the user clicked OK; otherwise, <see cref="DialogResult.Cancel" />.</returns>
/// <remarks>
/// <para>
Expand Down Expand Up @@ -417,15 +423,16 @@ public string Content
/// <exception cref="CredentialException">An error occurred while showing the credentials dialog.</exception>
/// <exception cref="InvalidOperationException"><see cref="Target"/> is an empty string ("").</exception>
[SecurityPermission(SecurityAction.LinkDemand, Flags = SecurityPermissionFlag.UnmanagedCode)]
public DialogResult ShowDialog()
public DialogResult ShowDialog(int authError = 0)
{
return ShowDialog(null);
return ShowDialog(null, authError);
}

/// <summary>
/// Shows the credentials dialog as a modal dialog with the specified owner.
/// </summary>
/// <param name="owner">The <see cref="IntPtr"/> Win32 handle that owns the credentials dialog.</param>
/// <param name="authError">An optionally provided Windows error specifying why the credential dialog box is needed, for example <see cref="SEC_E_LOGON_DENIED"/>.</param>
/// <returns><see cref="DialogResult.OK" /> if the user clicked OK; otherwise, <see cref="DialogResult.Cancel" />.</returns>
/// <remarks>
/// <para>
Expand Down Expand Up @@ -458,7 +465,7 @@ public DialogResult ShowDialog()
/// <exception cref="CredentialException">An error occurred while showing the credentials dialog.</exception>
/// <exception cref="InvalidOperationException"><see cref="Target"/> is an empty string ("").</exception>
[SecurityPermission(SecurityAction.LinkDemand, Flags = SecurityPermissionFlag.UnmanagedCode)]
public DialogResult ShowDialog(IntPtr owner)
public DialogResult ShowDialog(IntPtr owner, int authError = 0)
{
if( string.IsNullOrEmpty(_target) )
throw new InvalidOperationException(Properties.Resources.CredentialEmptyTargetError);
Expand Down Expand Up @@ -490,16 +497,17 @@ public DialogResult ShowDialog(IntPtr owner)
IntPtr ownerHandle = owner == IntPtr.Zero ? NativeMethods.GetActiveWindow() : owner;
bool result;
if( NativeMethods.IsWindowsVistaOrLater )
result = PromptForCredentialsCredUIWin(ownerHandle, storedCredentials);
result = PromptForCredentialsCredUIWin(ownerHandle, storedCredentials, authError);
else
result = PromptForCredentialsCredUI(ownerHandle, storedCredentials);
result = PromptForCredentialsCredUI(ownerHandle, storedCredentials, authError);
return result ? DialogResult.OK : DialogResult.Cancel;
}

/// <summary>
/// Shows the credentials dialog as a modal dialog with the specified owner.
/// </summary>
/// <param name="owner">The <see cref="IWin32Window"/> that owns the credentials dialog.</param>
/// <param name="authError">An optionally provided Windows error specifying why the credential dialog box is needed, for example <see cref="SEC_E_LOGON_DENIED"/>.</param>
/// <returns><see cref="DialogResult.OK" /> if the user clicked OK; otherwise, <see cref="DialogResult.Cancel" />.</returns>
/// <remarks>
/// <para>
Expand Down Expand Up @@ -532,14 +540,14 @@ public DialogResult ShowDialog(IntPtr owner)
/// <exception cref="CredentialException">An error occurred while showing the credentials dialog.</exception>
/// <exception cref="InvalidOperationException"><see cref="Target"/> is an empty string ("").</exception>
[SecurityPermission(SecurityAction.LinkDemand, Flags = SecurityPermissionFlag.UnmanagedCode)]
public DialogResult ShowDialog(IWin32Window owner)
public DialogResult ShowDialog(IWin32Window owner, int authError = 0)
{
IntPtr ownerHandle;
if( owner == null )
ownerHandle = NativeMethods.GetActiveWindow();
else
ownerHandle = owner.Handle;
return ShowDialog(ownerHandle);
return ShowDialog(ownerHandle, authError);
}

/// <summary>
Expand Down Expand Up @@ -786,7 +794,7 @@ protected virtual void OnPasswordChanged(EventArgs e)
PasswordChanged(this, e);
}

private bool PromptForCredentialsCredUI(IntPtr owner, bool storedCredentials)
private bool PromptForCredentialsCredUI(IntPtr owner, bool storedCredentials, int authError)
{
NativeMethods.CREDUI_INFO info = CreateCredUIInfo(owner, true);
NativeMethods.CREDUI_FLAGS flags = NativeMethods.CREDUI_FLAGS.GENERIC_CREDENTIALS | NativeMethods.CREDUI_FLAGS.DO_NOT_PERSIST | NativeMethods.CREDUI_FLAGS.ALWAYS_SHOW_UI;
Expand All @@ -798,7 +806,7 @@ private bool PromptForCredentialsCredUI(IntPtr owner, bool storedCredentials)
StringBuilder pw = new StringBuilder(NativeMethods.CREDUI_MAX_PASSWORD_LENGTH);
pw.Append(Password);

NativeMethods.CredUIReturnCodes result = NativeMethods.CredUIPromptForCredentials(ref info, Target, IntPtr.Zero, 0, user, NativeMethods.CREDUI_MAX_USERNAME_LENGTH, pw, NativeMethods.CREDUI_MAX_PASSWORD_LENGTH, ref _isSaveChecked, flags);
NativeMethods.CredUIReturnCodes result = NativeMethods.CredUIPromptForCredentials(ref info, Target, IntPtr.Zero, authError, user, NativeMethods.CREDUI_MAX_USERNAME_LENGTH, pw, NativeMethods.CREDUI_MAX_PASSWORD_LENGTH, ref _isSaveChecked, flags);
switch( result )
{
case NativeMethods.CredUIReturnCodes.NO_ERROR:
Expand All @@ -820,7 +828,7 @@ private bool PromptForCredentialsCredUI(IntPtr owner, bool storedCredentials)
}
}

private bool PromptForCredentialsCredUIWin(IntPtr owner, bool storedCredentials)
private bool PromptForCredentialsCredUIWin(IntPtr owner, bool storedCredentials, int authError)
{
NativeMethods.CREDUI_INFO info = CreateCredUIInfo(owner, false);
NativeMethods.CredUIWinFlags flags = NativeMethods.CredUIWinFlags.Generic;
Expand All @@ -845,7 +853,7 @@ private bool PromptForCredentialsCredUIWin(IntPtr owner, bool storedCredentials)

uint outBufferSize;
uint package = 0;
NativeMethods.CredUIReturnCodes result = NativeMethods.CredUIPromptForWindowsCredentials(ref info, 0, ref package, inBuffer, inBufferSize, out outBuffer, out outBufferSize, ref _isSaveChecked, flags);
NativeMethods.CredUIReturnCodes result = NativeMethods.CredUIPromptForWindowsCredentials(ref info, authError, ref package, inBuffer, inBufferSize, out outBuffer, out outBufferSize, ref _isSaveChecked, flags);
switch( result )
{
case NativeMethods.CredUIReturnCodes.NO_ERROR:
Expand Down