Remove unused method CredUIPromptForCredential from HostUtilities.cs (#9220)
This commit is contained in:
Ilya
Dongbo Wang
parent
5a53ea0a32
commit
49c38684a3
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@ -676,180 +676,6 @@ namespace System.Management.Automation
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}
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}
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internal static PSCredential CredUIPromptForCredential(
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string caption,
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string message,
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string userName,
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string targetName,
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PSCredentialTypes allowedCredentialTypes,
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PSCredentialUIOptions options,
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IntPtr parentHWND)
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{
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PSCredential cred = null;
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// From WinCred.h
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const int CRED_MAX_USERNAME_LENGTH = (256 + 1 + 256);
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const int CRED_MAX_CREDENTIAL_BLOB_SIZE = 512;
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const int CRED_MAX_PASSWORD_LENGTH = CRED_MAX_CREDENTIAL_BLOB_SIZE / 2;
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const int CREDUI_MAX_MESSAGE_LENGTH = 1024;
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const int CREDUI_MAX_CAPTION_LENGTH = 128;
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// Populate the UI text with defaults, if required
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if (string.IsNullOrEmpty(caption))
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{
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caption = CredUI.PromptForCredential_DefaultCaption;
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}
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if (string.IsNullOrEmpty(message))
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{
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message = CredUI.PromptForCredential_DefaultMessage;
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}
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if (caption.Length > CREDUI_MAX_CAPTION_LENGTH)
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{
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throw new ArgumentException(string.Format(CultureInfo.InvariantCulture, CredUI.PromptForCredential_InvalidCaption, CREDUI_MAX_CAPTION_LENGTH));
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}
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if (message.Length > CREDUI_MAX_MESSAGE_LENGTH)
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{
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throw new ArgumentException(string.Format(CultureInfo.InvariantCulture, CredUI.PromptForCredential_InvalidMessage, CREDUI_MAX_MESSAGE_LENGTH));
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}
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if (userName != null && userName.Length > CRED_MAX_USERNAME_LENGTH)
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{
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throw new ArgumentException(string.Format(CultureInfo.InvariantCulture, CredUI.PromptForCredential_InvalidUserName, CRED_MAX_USERNAME_LENGTH));
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}
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CREDUI_INFO credUiInfo = new CREDUI_INFO();
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credUiInfo.pszCaptionText = caption;
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credUiInfo.pszMessageText = message;
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StringBuilder usernameBuilder = new StringBuilder(userName, CRED_MAX_USERNAME_LENGTH);
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StringBuilder passwordBuilder = new StringBuilder(CRED_MAX_PASSWORD_LENGTH);
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bool save = false;
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int saveCredentials = Convert.ToInt32(save);
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credUiInfo.cbSize = Marshal.SizeOf(credUiInfo);
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credUiInfo.hwndParent = parentHWND;
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CREDUI_FLAGS flags = CREDUI_FLAGS.DO_NOT_PERSIST;
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// Set some of the flags if they have not requested a domain credential
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if ((allowedCredentialTypes & PSCredentialTypes.Domain) != PSCredentialTypes.Domain)
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{
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flags |= CREDUI_FLAGS.GENERIC_CREDENTIALS;
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// If they've asked to always prompt, do so.
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if ((options & PSCredentialUIOptions.AlwaysPrompt) == PSCredentialUIOptions.AlwaysPrompt)
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flags |= CREDUI_FLAGS.ALWAYS_SHOW_UI;
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}
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// To prevent buffer overrun attack, only attempt call if buffer lengths are within bounds.
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CredUIReturnCodes result = CredUIReturnCodes.ERROR_INVALID_PARAMETER;
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if (usernameBuilder.Length <= CRED_MAX_USERNAME_LENGTH && passwordBuilder.Length <= CRED_MAX_PASSWORD_LENGTH)
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{
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result = CredUIPromptForCredentials(
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ref credUiInfo,
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targetName,
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IntPtr.Zero,
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0,
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usernameBuilder,
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CRED_MAX_USERNAME_LENGTH,
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passwordBuilder,
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CRED_MAX_PASSWORD_LENGTH,
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ref saveCredentials,
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flags);
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}
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if (result == CredUIReturnCodes.NO_ERROR)
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{
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// Extract the username
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string credentialUsername = null;
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if (usernameBuilder != null)
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credentialUsername = usernameBuilder.ToString();
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// Trim the leading '\' from the username, which CredUI automatically adds
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// if you don't specify a domain.
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// This is a really common bug in V1 and V2, causing everybody to have to do
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// it themselves.
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// This could be a breaking change for hosts that do hard-coded hacking:
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// $cred.UserName.SubString(1, $cred.Username.Length - 1)
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// But that's OK, because they would have an even worse bug when you've
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// set the host (ConsolePrompting = true) configuration (which does not do this).
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credentialUsername = credentialUsername.TrimStart('\\');
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// Extract the password into a SecureString, zeroing out the memory
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// as soon as possible.
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SecureString password = new SecureString();
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for (int counter = 0; counter < passwordBuilder.Length; counter++)
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{
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password.AppendChar(passwordBuilder[counter]);
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passwordBuilder[counter] = (char)0;
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}
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if (!string.IsNullOrEmpty(credentialUsername))
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cred = new PSCredential(credentialUsername, password);
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else
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cred = null;
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}
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else // result is not CredUIReturnCodes.NO_ERROR
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{
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cred = null;
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}
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return cred;
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}
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[DllImport("credui", EntryPoint = "CredUIPromptForCredentialsW", CharSet = CharSet.Unicode)]
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private static extern CredUIReturnCodes CredUIPromptForCredentials(ref CREDUI_INFO pUiInfo,
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string pszTargetName, IntPtr Reserved, int dwAuthError, StringBuilder pszUserName,
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int ulUserNameMaxChars, StringBuilder pszPassword, int ulPasswordMaxChars, ref int pfSave, CREDUI_FLAGS dwFlags);
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[Flags]
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private enum CREDUI_FLAGS
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{
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INCORRECT_PASSWORD = 0x1,
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DO_NOT_PERSIST = 0x2,
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REQUEST_ADMINISTRATOR = 0x4,
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EXCLUDE_CERTIFICATES = 0x8,
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REQUIRE_CERTIFICATE = 0x10,
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SHOW_SAVE_CHECK_BOX = 0x40,
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ALWAYS_SHOW_UI = 0x80,
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REQUIRE_SMARTCARD = 0x100,
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PASSWORD_ONLY_OK = 0x200,
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VALIDATE_USERNAME = 0x400,
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COMPLETE_USERNAME = 0x800,
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PERSIST = 0x1000,
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SERVER_CREDENTIAL = 0x4000,
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EXPECT_CONFIRMATION = 0x20000,
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GENERIC_CREDENTIALS = 0x40000,
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USERNAME_TARGET_CREDENTIALS = 0x80000,
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KEEP_USERNAME = 0x100000,
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}
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private struct CREDUI_INFO
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{
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public int cbSize;
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public IntPtr hwndParent;
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[MarshalAs(UnmanagedType.LPWStr)]
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public string pszMessageText;
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[MarshalAs(UnmanagedType.LPWStr)]
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public string pszCaptionText;
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public IntPtr hbmBanner;
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}
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private enum CredUIReturnCodes
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{
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NO_ERROR = 0,
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ERROR_CANCELLED = 1223,
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ERROR_NO_SUCH_LOGON_SESSION = 1312,
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ERROR_NOT_FOUND = 1168,
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ERROR_INVALID_ACCOUNT_NAME = 1315,
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ERROR_INSUFFICIENT_BUFFER = 122,
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ERROR_INVALID_PARAMETER = 87,
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ERROR_INVALID_FLAGS = 1004,
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}
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/// <summary>
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/// Returns the prompt used in remote sessions: "[machine]: basePrompt"
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/// </summary>
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