Login.cs :  » 2.6.4-mono-.net-core » System.Web » System » Web » UI » WebControls » C# / CSharp Open Source

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C# / CSharp Open Source » 2.6.4 mono .net core » System.Web 
System.Web » System » Web » UI » WebControls » Login.cs
//
// System.Web.UI.WebControls.Login class
//
// Author:
//  Sebastien Pouliot  <sebastien@ximian.com>
//  Konstantin Triger  <kostat@mainsoft.com>
//
// Copyright (C) 2005 Novell, Inc (http://www.novell.com)
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
// 
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//

#if NET_2_0

using System.Collections;
using System.Globalization;
using System.ComponentModel;
using System.Security.Permissions;
using System.Web.Security;
using System.Web.Util;

namespace System.Web.UI.WebControls{

  // CAS
  [AspNetHostingPermission (SecurityAction.LinkDemand, Level = AspNetHostingPermissionLevel.Minimal)]
  [AspNetHostingPermission (SecurityAction.InheritanceDemand, Level = AspNetHostingPermissionLevel.Minimal)]
  // attributes
  [Bindable (false)]
  [DefaultEvent ("Authenticate")]
  [Designer ("System.Web.UI.Design.WebControls.LoginDesigner, " + Consts.AssemblySystem_Design, "System.ComponentModel.Design.IDesigner")]
  public class Login : CompositeControl 
  {
    #region LoginContainer
    sealed class LoginContainer : Table
    {
      readonly Login _owner = null;
      TableCell _containerCell = null;

      public LoginContainer (Login owner)
      {
        _owner = owner;
        InitTable ();
      }
      
      public override string ID {
        get {
          return _owner.ID;
        }
        set {
          _owner.ID = value;
        }
      }
      
      public override string ClientID {
        get {
          return _owner.ClientID;
        }
      }

      public void InstantiateTemplate (ITemplate template)
      {
        template.InstantiateIn (_containerCell);
      }

      void InitTable ()
      {
        _containerCell = new TableCell ();

        TableRow row = new TableRow ();
        row.Cells.Add (_containerCell);
        Rows.Add (row);
      }

      protected internal override void Render (HtmlTextWriter writer) {
        CellSpacing = 0;
        CellPadding = _owner.BorderPadding;
        ApplyStyle (_owner.ControlStyle);
        Attributes.CopyFrom (_owner.Attributes);
        base.Render (writer);
      }
      
      public Control UserNameTextBox {
        get {
          return FindControl("UserName");
        }
      }

      public Control PasswordTextBox {
        get {
          return FindControl("Password");
        }
      }

      public Control RememberMeCheckBox {
        get {
          return FindControl("RememberMe");
        }
      }

      public ITextControl FailureTextLiteral
      {
        get { 
          return FindControl ("FailureText") as ITextControl; 
        }
      }
    }

    #endregion

    #region LoginTemplate

    sealed class LoginTemplate : WebControl, ITemplate
    {
      readonly Login _login;

      public LoginTemplate (Login login)
      {
        _login = login;
      }

      void ITemplate.InstantiateIn (Control container)
      {
        // 
        LiteralControl TitleText = new LiteralControl (_login.TitleText);

        // 
        LiteralControl InstructionText = new LiteralControl (_login.InstructionText);

        //
        TextBox UserName = new TextBox ();
        UserName.ID = "UserName";
        UserName.Text = _login.UserName;
        _login.RegisterApplyStyle (UserName, _login.TextBoxStyle);

        Label UserNameLabel = new Label ();
        UserNameLabel.ID = "UserNameLabel";
        UserNameLabel.AssociatedControlID = "UserName";
        UserNameLabel.Text = _login.UserNameLabelText;

        RequiredFieldValidator UserNameRequired = new RequiredFieldValidator ();
        UserNameRequired.ID = "UserNameRequired";
        UserNameRequired.ControlToValidate = "UserName";
        UserNameRequired.ErrorMessage = _login.UserNameRequiredErrorMessage;
        UserNameRequired.ToolTip = _login.UserNameRequiredErrorMessage;
        UserNameRequired.Text = "*";
        UserNameRequired.ValidationGroup = _login.ID;
        _login.RegisterApplyStyle (UserNameRequired, _login.ValidatorTextStyle);

        //
        TextBox Password = new TextBox ();
        Password.ID = "Password";
        Password.TextMode = TextBoxMode.Password;
        _login.RegisterApplyStyle (Password, _login.TextBoxStyle);

        Label PasswordLabel = new Label ();
        PasswordLabel.ID = "PasswordLabel";
        PasswordLabel.AssociatedControlID = "PasswordLabel";
        PasswordLabel.Text = _login.PasswordLabelText;

        RequiredFieldValidator PasswordRequired = new RequiredFieldValidator ();
        PasswordRequired.ID = "PasswordRequired";
        PasswordRequired.ControlToValidate = "Password";
        PasswordRequired.ErrorMessage = _login.PasswordRequiredErrorMessage;
        PasswordRequired.ToolTip = _login.PasswordRequiredErrorMessage;
        PasswordRequired.Text = "*";
        PasswordRequired.ValidationGroup = _login.ID;
        _login.RegisterApplyStyle (PasswordRequired, _login.ValidatorTextStyle);

        bool useRememberMe = _login != null ? _login.DisplayRememberMe : true;
        CheckBox RememberMe;
        //
        if (useRememberMe) {
          RememberMe = new CheckBox ();
          RememberMe.ID = "RememberMe";
          RememberMe.Checked = _login.RememberMeSet;
          RememberMe.Text = _login.RememberMeText;
          _login.RegisterApplyStyle (RememberMe, _login.CheckBoxStyle);
        } else
          RememberMe = null;
        
        // TODO: Error text
        Literal FailureText = new Literal ();
        FailureText.ID = "FailureText";
        FailureText.EnableViewState = false;

        //
        WebControl LoginButton = null;
        switch (_login.LoginButtonType) {
          case ButtonType.Button:
            LoginButton = new Button ();
            LoginButton.ID = "LoginButton";
            break;
          case ButtonType.Link:
            LoginButton = new LinkButton ();
            LoginButton.ID = "LoginLinkButton";
            break;
          case ButtonType.Image:
            LoginButton = new ImageButton ();
            LoginButton.ID = "LoginImageButton";
            break;
        }
        _login.RegisterApplyStyle (LoginButton, _login.LoginButtonStyle);
        LoginButton.ID = "LoginButton";
        ((IButtonControl) LoginButton).Text = _login.LoginButtonText;
        ((IButtonControl) LoginButton).CommandName = Login.LoginButtonCommandName;
        ((IButtonControl) LoginButton).Command += new CommandEventHandler (_login.LoginClick);
        ((IButtonControl) LoginButton).ValidationGroup = _login.ID;

        // Create layout table
        Table table = new Table ();
        table.CellPadding = 0;

        // Title row
        table.Rows.Add (
          CreateRow (
          CreateCell (TitleText, null, _login.TitleTextStyle, HorizontalAlign.Center)));

        // Instruction row
        if (_login.InstructionText.Length > 0) {
          table.Rows.Add (
            CreateRow (
            CreateCell (InstructionText, null, _login.instructionTextStyle, HorizontalAlign.Center)));
        }

        if (_login.Orientation == Orientation.Horizontal) {
          // Main row
          TableRow row1 = new TableRow ();
          TableRow row2 = new TableRow ();
          if (_login.TextLayout == LoginTextLayout.TextOnTop)
            row1.Cells.Add (CreateCell (UserNameLabel, null, _login.LabelStyle));
          else
            row2.Cells.Add (CreateCell (UserNameLabel, null, _login.LabelStyle));
          row2.Cells.Add (CreateCell (UserName, UserNameRequired, null));
          if (_login.TextLayout == LoginTextLayout.TextOnTop)
            row1.Cells.Add (CreateCell (PasswordLabel, null, _login.LabelStyle));
          else
            row2.Cells.Add (CreateCell (PasswordLabel, null, _login.LabelStyle));
          row2.Cells.Add (CreateCell (Password, PasswordRequired, null));
          if (useRememberMe)
            row2.Cells.Add (CreateCell (RememberMe, null, null));
          row2.Cells.Add (CreateCell (LoginButton, null, null));
          if (row1.Cells.Count > 0)
            table.Rows.Add (row1);
          table.Rows.Add (row2);
        }
        else { // Orientation.Vertical
          if (_login.TextLayout == LoginTextLayout.TextOnLeft)
            table.Rows.Add (CreateRow (UserNameLabel, UserName, UserNameRequired, _login.LabelStyle));
          else {
            table.Rows.Add (CreateRow (UserNameLabel, null, null, _login.LabelStyle));
            table.Rows.Add (CreateRow (null, UserName, UserNameRequired, null));
          }
          if (_login.TextLayout == LoginTextLayout.TextOnLeft)
            table.Rows.Add (CreateRow (PasswordLabel, Password, PasswordRequired, _login.LabelStyle));
          else {
            table.Rows.Add (CreateRow (PasswordLabel, null, null, _login.LabelStyle));
            table.Rows.Add (CreateRow (null, Password, PasswordRequired, null));
          }
          if (useRememberMe)
            table.Rows.Add (CreateRow (CreateCell (RememberMe, null, null)));
          table.Rows.Add (CreateRow (CreateCell (LoginButton, null, null, HorizontalAlign.Right)));
        }

        // Error message row
        if (_login.FailureTextStyle.ForeColor.IsEmpty)
          _login.FailureTextStyle.ForeColor = System.Drawing.Color.Red;

        table.Rows.Add (
          CreateRow (
          CreateCell (FailureText, null, _login.FailureTextStyle)));

        // Links row
        TableCell linksCell = new TableCell ();
        _login.RegisterApplyStyle (linksCell, _login.HyperLinkStyle);

        if (AddLink (_login.CreateUserUrl, _login.CreateUserText, _login.CreateUserIconUrl, linksCell, _login.HyperLinkStyle))
          if (_login.Orientation == Orientation.Vertical)
            linksCell.Controls.Add (new LiteralControl ("<br/>"));
          else
            linksCell.Controls.Add (new LiteralControl (" "));

        if (AddLink (_login.PasswordRecoveryUrl, _login.PasswordRecoveryText, _login.PasswordRecoveryIconUrl, linksCell, _login.HyperLinkStyle))
          if (_login.Orientation == Orientation.Vertical)
            linksCell.Controls.Add (new LiteralControl ("<br/>"));
          else
            linksCell.Controls.Add (new LiteralControl (" "));

        AddLink (_login.HelpPageUrl, _login.HelpPageText, _login.HelpPageIconUrl, linksCell, _login.HyperLinkStyle);
        table.Rows.Add (CreateRow (linksCell));

        FixTableColumnSpans (table);
        container.Controls.Add (table);
      }

      TableRow CreateRow (TableCell cell)
      {
        TableRow row = new TableRow ();
        row.Cells.Add (cell);
        return row;
      }

      TableRow CreateRow (Control c0, Control c1, Control c2, Style s)
      {
        TableRow row = new TableRow ();
        TableCell cell0 = new TableCell ();
        TableCell cell1 = new TableCell ();

        if (c0 != null) {
          cell0.Controls.Add (c0);
          row.Controls.Add (cell0);
        }

        if (s != null)
          cell0.ApplyStyle (s);

        if ((c1 != null) && (c2 != null)) {
          cell1.Controls.Add (c1);
          cell1.Controls.Add (c2);
          cell0.HorizontalAlign = HorizontalAlign.Right;
          row.Controls.Add (cell1);
        }
        return row;
      }
      
      TableCell CreateCell (Control c0, Control c1, Style s, HorizontalAlign align)
      {
        TableCell cell = CreateCell (c0, c1, s);
        cell.HorizontalAlign = align;
        return cell;
      }

      TableCell CreateCell (Control c0, Control c1, Style s)
      {
        TableCell cell = new TableCell ();
        if (s != null)
          cell.ApplyStyle (s);

        cell.Controls.Add (c0);
        if (c1 != null)
          cell.Controls.Add (c1);

        return cell;
      }

      bool AddLink (string pageUrl, string linkText, string linkIcon, WebControl container, Style style)
      {
        bool added = false;
        if (linkIcon.Length > 0) {
          Image img = new Image ();
          img.ImageUrl = linkIcon;
          container.Controls.Add (img);
          added = true;
        }
        if (linkText.Length > 0) {
          HyperLink link = new HyperLink ();
          link.NavigateUrl = pageUrl;
          link.Text = linkText;
          _login.RegisterApplyStyle (link, style);
          container.Controls.Add (link);
          added = true;
        }
        return added;
      }

      void FixTableColumnSpans (Table table)
      {
        int maxCols = 0;
        for (int row = 0; row < table.Rows.Count; row++) {
          if (maxCols < table.Rows [row].Cells.Count)
            maxCols = table.Rows [row].Cells.Count;
        }
        for (int row = 0; row < table.Rows.Count; row++) {
          if (table.Rows [row].Cells.Count == 1 && maxCols > 1)
              table.Rows [row].Cells [0].ColumnSpan = maxCols;
        }
      }
    }

    #endregion

    public static readonly string LoginButtonCommandName = "Login";

    static readonly object authenticateEvent = new object ();
    static readonly object loggedInEvent = new object ();
    static readonly object loggingInEvent = new object ();
    static readonly object loginErrorEvent = new object ();

    TableItemStyle checkBoxStyle;
    TableItemStyle failureTextStyle;
    TableItemStyle hyperLinkStyle;
    TableItemStyle instructionTextStyle;
    TableItemStyle labelStyle;
    Style logonButtonStyle;
    Style textBoxStyle;
    TableItemStyle titleTextStyle;
    Style validatorTextStyle;
    ArrayList styles = new ArrayList ();

    ITemplate layoutTemplate;
    LoginContainer container;

    string _password;



    public Login ()
    {
    }

    [DefaultValue (1)]
    public virtual int BorderPadding {
      get {
        object o = ViewState ["BorderPadding"];
        return (o == null) ? 1 : (int) o;
      }
      set {
        if (value < -1)
          throw new ArgumentOutOfRangeException ("BorderPadding", "< -1");
        else
          ViewState ["BorderPadding"] = value;
      }
    }

    [DefaultValue (null)]
    [DesignerSerializationVisibility (DesignerSerializationVisibility.Content)]
    [NotifyParentProperty (true)]
    [PersistenceMode (PersistenceMode.InnerProperty)]
    public TableItemStyle CheckBoxStyle {
      get {
        if (checkBoxStyle == null) {
          checkBoxStyle = new TableItemStyle ();
          if (IsTrackingViewState) {
            (checkBoxStyle as IStateManager).TrackViewState ();
          }
        }
        return checkBoxStyle;
      }
    }

    [DefaultValue ("")]
    [Editor ("System.Web.UI.Design.ImageUrlEditor, " + Consts.AssemblySystem_Design, "System.Drawing.Design.UITypeEditor, " + Consts.AssemblySystem_Drawing)]
    [UrlProperty]
    public virtual string CreateUserIconUrl {
      get {
        object o = ViewState ["CreateUserIconUrl"];
        return (o == null) ? String.Empty : (string) o;
      }
      set {
        if (value == null)
          ViewState.Remove ("CreateUserIconUrl");
        else
          ViewState ["CreateUserIconUrl"] = value;
      }
    }

    [DefaultValue ("")]
    [Localizable (true)]
    public virtual string CreateUserText {
      get {
        object o = ViewState ["CreateUserText"];
        return (o == null) ? String.Empty : (string) o;
      }
      set {
        if (value == null)
          ViewState.Remove ("CreateUserText");
        else
          ViewState ["CreateUserText"] = value;
      }
    }

    [DefaultValue ("")]
    [Editor ("System.Web.UI.Design.UrlEditor, " + Consts.AssemblySystem_Design, "System.Drawing.Design.UITypeEditor, " + Consts.AssemblySystem_Drawing)]
    [UrlProperty]
    public virtual string CreateUserUrl {
      get {
        object o = ViewState ["CreateUserUrl"];
        return (o == null) ? String.Empty : (string) o;
      }
      set {
        if (value == null)
          ViewState.Remove ("CreateUserUrl");
        else
          ViewState ["CreateUserUrl"] = value;
      }
    }

    [DefaultValue ("")]
    [Editor ("System.Web.UI.Design.UrlEditor, " + Consts.AssemblySystem_Design, "System.Drawing.Design.UITypeEditor, " + Consts.AssemblySystem_Drawing)]
    [Themeable (false)]
    [UrlProperty]
    public virtual string DestinationPageUrl {
      get {
        object o = ViewState ["DestinationPageUrl"];
        return (o == null) ? String.Empty : (string) o;
      }
      set {
        if (value == null)
          ViewState.Remove ("DestinationPageUrl");
        else
          ViewState ["DestinationPageUrl"] = value;
      }
    }

    [DefaultValue (true)]
    [Themeable (false)]
    public virtual bool DisplayRememberMe {
      get {
        object o = ViewState ["DisplayRememberMe"];
        return (o == null) ? true : (bool) o;
      }
      set {
        ViewState ["DisplayRememberMe"] = value;
      }
    }

    [DefaultValue (LoginFailureAction.Refresh)]
    [Themeable (false)]
    [MonoTODO ("RedirectToLoginPage not yet implemented in FormsAuthentication")]
    public virtual LoginFailureAction FailureAction {
      get {
        object o = ViewState ["FailureAction"];
        return (o == null) ? LoginFailureAction.Refresh : (LoginFailureAction) o;
      }
      set {
        if ((value < LoginFailureAction.Refresh) || (value > LoginFailureAction.RedirectToLoginPage))
          throw new ArgumentOutOfRangeException ("FailureAction");
        ViewState ["FailureAction"] = (int) value;
      }
    }

    [Localizable (true)]
    public virtual string FailureText {
      get {
        object o = ViewState ["FailureText"];
        return (o == null) ? Locale.GetText ("Your login attempt was not successful. Please try again.") : (string) o;
      }
      set {
        if (value == null)
          ViewState.Remove ("FailureText");
        else
          ViewState ["FailureText"] = value;
      }
    }

    [DefaultValue (null)]
    [DesignerSerializationVisibility (DesignerSerializationVisibility.Content)]
    [NotifyParentProperty (true)]
    [PersistenceMode (PersistenceMode.InnerProperty)]
    public TableItemStyle FailureTextStyle {
      get {
        if (failureTextStyle == null) {
          failureTextStyle = new TableItemStyle ();
          if (IsTrackingViewState) {
            (failureTextStyle as IStateManager).TrackViewState ();
          }
        }
        return failureTextStyle;
      }
    }

    [DefaultValue ("")]
    [Editor ("System.Web.UI.Design.ImageUrlEditor, " + Consts.AssemblySystem_Design, "System.Drawing.Design.UITypeEditor, " + Consts.AssemblySystem_Drawing)]
    [UrlProperty]
    public virtual string HelpPageIconUrl {
      get {
        object o = ViewState ["HelpPageIconUrl"];
        return (o == null) ? String.Empty : (string) o;
      }
      set {
        if (value == null)
          ViewState.Remove ("HelpPageIconUrl");
        else
          ViewState ["HelpPageIconUrl"] = value;
      }
    }

    [DefaultValue ("")]
    [Localizable (true)]
    public virtual string HelpPageText {
      get {
        object o = ViewState ["HelpPageText"];
        return (o == null) ? String.Empty : (string) o;
      }
      set {
        if (value == null)
          ViewState.Remove ("HelpPageText");
        else
          ViewState ["HelpPageText"] = value;
      }
    }

    [DefaultValue ("")]
    [Editor ("System.Web.UI.Design.UrlEditor, " + Consts.AssemblySystem_Design, "System.Drawing.Design.UITypeEditor, " + Consts.AssemblySystem_Drawing)]
    [UrlProperty]
    public virtual string HelpPageUrl {
      get {
        object o = ViewState ["HelpPageUrl"];
        return (o == null) ? String.Empty : (string) o;
      }
      set {
        if (value == null)
          ViewState.Remove ("HelpPageUrl");
        else
          ViewState ["HelpPageUrl"] = value;
      }
    }

    [DefaultValue (null)]
    [DesignerSerializationVisibility (DesignerSerializationVisibility.Content)]
    [NotifyParentProperty (true)]
    [PersistenceMode (PersistenceMode.InnerProperty)]
    public TableItemStyle HyperLinkStyle {
      get {
        if (hyperLinkStyle == null) {
          hyperLinkStyle = new TableItemStyle ();
          if (IsTrackingViewState) {
            (hyperLinkStyle  as IStateManager).TrackViewState ();
          }
        }
        return hyperLinkStyle;
      }
    }

    [DefaultValue ("")]
    [Localizable (true)]
    public virtual string InstructionText {
      get {
        object o = ViewState ["InstructionText"];
        return (o == null) ? String.Empty : (string) o;
      }
      set {
        if (value == null)
          ViewState.Remove ("InstructionText");
        else
          ViewState ["InstructionText"] = value;
      }
    }

    [DefaultValue (null)]
    [DesignerSerializationVisibility (DesignerSerializationVisibility.Content)]
    [NotifyParentProperty (true)]
    [PersistenceMode (PersistenceMode.InnerProperty)]
    public TableItemStyle InstructionTextStyle {
      get {
        if (instructionTextStyle == null) {
          instructionTextStyle = new TableItemStyle ();
          if (IsTrackingViewState) {
            (instructionTextStyle as IStateManager).TrackViewState ();
          }
        }
        return instructionTextStyle;
      }
    }

    [DefaultValue (null)]
    [DesignerSerializationVisibility (DesignerSerializationVisibility.Content)]
    [NotifyParentProperty (true)]
    [PersistenceMode (PersistenceMode.InnerProperty)]
    public TableItemStyle LabelStyle {
      get {
        if (labelStyle == null) {
          labelStyle = new TableItemStyle ();
          if (IsTrackingViewState) {
            (labelStyle as IStateManager).TrackViewState ();
          }
        }
        return labelStyle;
      }
    }

    [Browsable (false)]
    [TemplateContainer (typeof (Login))]
    [PersistenceMode (PersistenceMode.InnerProperty)]
    public virtual ITemplate LayoutTemplate {
      get { return layoutTemplate; }
      set { layoutTemplate = value; }
    }

    [DefaultValue ("")]
    [Editor ("System.Web.UI.Design.ImageUrlEditor, " + Consts.AssemblySystem_Design, "System.Drawing.Design.UITypeEditor, " + Consts.AssemblySystem_Drawing)]
    [UrlProperty]
    public virtual string LoginButtonImageUrl {
      get {
        object o = ViewState ["LoginButtonImageUrl"];
        return (o == null) ? String.Empty : (string) o;
      }
      set {
        if (value == null)
          ViewState.Remove ("LoginButtonImageUrl");
        else
          ViewState ["LoginButtonImageUrl"] = value;
      }
    }

    [DefaultValue (null)]
    [DesignerSerializationVisibility (DesignerSerializationVisibility.Content)]
    [NotifyParentProperty (true)]
    [PersistenceMode (PersistenceMode.InnerProperty)]
    public Style LoginButtonStyle {
      get {
        if (logonButtonStyle == null) {
          logonButtonStyle = new Style ();
          if (IsTrackingViewState) {
            (logonButtonStyle as IStateManager).TrackViewState ();
          }
        }
        return logonButtonStyle;
      }
    }

    [Localizable (true)]
    public virtual string LoginButtonText {
      get {
        object o = ViewState ["LoginButtonText"];
        return (o == null) ? Locale.GetText ("Log In") : (string) o;
      }
      set {
        if (value == null)
          ViewState.Remove ("LoginButtonText");
        else
          ViewState ["LoginButtonText"] = value;
      }
    }

    [DefaultValue (ButtonType.Button)]
    public virtual ButtonType LoginButtonType {
      get {
        object o = ViewState ["LoginButtonType"];
        return (o == null) ? ButtonType.Button : (ButtonType) o;
      }
      set {
        if ((value < ButtonType.Button) || (value > ButtonType.Link))
          throw new ArgumentOutOfRangeException ("LoginButtonType");
        ViewState ["LoginButtonType"] = (int) value;
      }
    }

    [DefaultValue ("")]
    [Themeable (false)]
    public virtual string MembershipProvider {
      get {
        object o = ViewState ["MembershipProvider"];
        return (o == null) ? String.Empty : (string) o;
      }
      set {
        if (value == null)
          ViewState.Remove ("MembershipProvider");
        else
          ViewState ["MembershipProvider"] = value;
      }
    }

    [DefaultValue (Orientation.Vertical)]
    public virtual Orientation Orientation {
      get {
        object o = ViewState ["Orientation"];
        return (o == null) ? Orientation.Vertical : (Orientation) o;
      }
      set {
        if ((value < Orientation.Horizontal) || (value > Orientation.Vertical))
          throw new ArgumentOutOfRangeException ("Orientation");
        ViewState ["Orientation"] = (int) value;
      }
    }

    [Browsable (false)]
    [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
    public virtual string Password {
      get {
        return _password != null ? _password : String.Empty;
      }
    }

    [Localizable (true)]
    public virtual string PasswordLabelText {
      get {
        object o = ViewState ["PasswordLabelText"];
        return (o == null) ? "Password:" : (string) o;
      }
      set {
        if (value == null)
          ViewState.Remove ("PasswordLabelText");
        else
          ViewState ["PasswordLabelText"] = value;
      }
    }

    [DefaultValue ("")]
    [Editor ("System.Web.UI.Design.ImageUrlEditor, " + Consts.AssemblySystem_Design, "System.Drawing.Design.UITypeEditor, " + Consts.AssemblySystem_Drawing)]
    [UrlProperty]
    public virtual string PasswordRecoveryIconUrl {
      get {
        object o = ViewState ["PasswordRecoveryIconUrl"];
        return (o == null) ? String.Empty : (string) o;
      }
      set {
        if (value == null)
          ViewState.Remove ("PasswordRecoveryIconUrl");
        else
          ViewState ["PasswordRecoveryIconUrl"] = value;
      }
    }

    [DefaultValue ("")]
    [Localizable (true)]
    public virtual string PasswordRecoveryText {
      get {
        object o = ViewState ["PasswordRecoveryText"];
        return (o == null) ? String.Empty : (string) o;
      }
      set {
        if (value == null)
          ViewState.Remove ("PasswordRecoveryText");
        else
          ViewState ["PasswordRecoveryText"] = value;
      }
    }

    [DefaultValue ("")]
    [Editor ("System.Web.UI.Design.UrlEditor, " + Consts.AssemblySystem_Design, "System.Drawing.Design.UITypeEditor, " + Consts.AssemblySystem_Drawing)]
    [UrlProperty]
    public virtual string PasswordRecoveryUrl {
      get {
        object o = ViewState ["PasswordRecoveryUrl"];
        return (o == null) ? String.Empty : (string) o;
      }
      set {
        if (value == null)
          ViewState.Remove ("PasswordRecoveryUrl");
        else
          ViewState ["PasswordRecoveryUrl"] = value;
      }
    }

    [Localizable (true)]
    public virtual string PasswordRequiredErrorMessage {
      get {
        object o = ViewState ["PasswordRequiredErrorMessage"];
        return (o == null) ? Locale.GetText ("Password is required.") : (string) o;
      }
      set {
        if (value == null)
          ViewState.Remove ("PasswordRequiredErrorMessage");
        else
          ViewState ["PasswordRequiredErrorMessage"] = value;
      }
    }

    [DefaultValue (false)]
    [Themeable (false)]
    public virtual bool RememberMeSet {
      get {
        object o = ViewState ["RememberMeSet"];
        return (o == null) ? false : (bool) o;
      }
      set {
        ViewState ["RememberMeSet"] = value;
      }
    }

    [Localizable (true)]
    public virtual string RememberMeText {
      get {
        object o = ViewState ["RememberMeText"];
        return (o == null) ? Locale.GetText ("Remember me next time.") : (string) o;
      }
      set {
        if (value == null)
          ViewState.Remove ("RememberMeText");
        else
          ViewState ["RememberMeText"] = value;
      }
    }

    protected override HtmlTextWriterTag TagKey {
      get { return HtmlTextWriterTag.Table; }
    }

    [DefaultValue (null)]
    [DesignerSerializationVisibility (DesignerSerializationVisibility.Content)]
    [NotifyParentProperty (true)]
    [PersistenceMode (PersistenceMode.InnerProperty)]
    public Style TextBoxStyle {
      get {
        if (textBoxStyle == null) {
          textBoxStyle = new Style ();
          if (IsTrackingViewState) {
            (textBoxStyle as IStateManager).TrackViewState ();
          }
        }
        return textBoxStyle;
      }
    }

    [DefaultValue (LoginTextLayout.TextOnLeft)]
    public virtual LoginTextLayout TextLayout {
      get {
        object o = ViewState ["TextLayout"];
        return (o == null) ? LoginTextLayout.TextOnLeft : (LoginTextLayout) o;
      }
      set {
        if ((value < LoginTextLayout.TextOnLeft) || (value > LoginTextLayout.TextOnTop))
          throw new ArgumentOutOfRangeException ("TextLayout");
        ViewState ["TextLayout"] = (int) value;
      }
    }

    [Localizable (true)]
    public virtual string TitleText {
      get {
        object o = ViewState ["TitleText"];
        return (o == null) ? Locale.GetText ("Log In") : (string) o;
      }
      set {
        if (value == null)
          ViewState.Remove ("TitleText");
        else
          ViewState ["TitleText"] = value;
      }
    }

    [DefaultValue (null)]
    [DesignerSerializationVisibility (DesignerSerializationVisibility.Content)]
    [NotifyParentProperty (true)]
    [PersistenceMode (PersistenceMode.InnerProperty)]
    public TableItemStyle TitleTextStyle {
      get {
        if (titleTextStyle == null) {
          titleTextStyle = new TableItemStyle ();
          if (IsTrackingViewState) {
            (titleTextStyle as IStateManager).TrackViewState ();
          }
        }
        return titleTextStyle;
      }
    }

    [DefaultValue ("")]
    public virtual string UserName {
      get {
        object o = ViewState ["UserName"];
        return (o == null) ? String.Empty : (string) o;
      }
      set {
        if (value == null)
          ViewState.Remove ("UserName");
        else
          ViewState ["UserName"] = value;
      }
    }

    [Localizable (true)]
    public virtual string UserNameLabelText {
      get {
        object o = ViewState ["UserNameLabelText"];
        return (o == null) ? Locale.GetText ("User Name:") : (string) o;
      }
      set {
        if (value == null)
          ViewState.Remove ("UserNameLabelText");
        else
          ViewState ["UserNameLabelText"] = value;
      }
    }

    [Localizable (true)]
    public virtual string UserNameRequiredErrorMessage {
      get {
        object o = ViewState ["UserNameRequiredErrorMessage"];
        return (o == null) ? Locale.GetText ("User Name is required.") : (string) o;
      }
      set {
        if (value == null)
          ViewState.Remove ("UserNameRequiredErrorMessage");
        else
          ViewState ["UserNameRequiredErrorMessage"] = value;
      }
    }

    [DefaultValue (null)]
    [DesignerSerializationVisibility (DesignerSerializationVisibility.Content)]
    [NotifyParentProperty (true)]
    [PersistenceMode (PersistenceMode.InnerProperty)]
    public Style ValidatorTextStyle {
      get {
        if (validatorTextStyle == null) {
          validatorTextStyle = new Style ();
          if (IsTrackingViewState) {
            (validatorTextStyle as IStateManager).TrackViewState ();
          }
        }
        return validatorTextStyle;
      }
    }

    [DefaultValue (true)]
    [Themeable (false)]
    public virtual bool VisibleWhenLoggedIn {
      get {
        object o = ViewState ["VisibleWhenLoggedIn"];
        return (o == null) ? true : (bool) o;
      }
      set {
        ViewState ["VisibleWhenLoggedIn"] = value;
      }
    }

    LoginContainer LoginTemplateContainer
    {
      get {
        if (container == null)
          container = new LoginContainer (this);
        return container;
      }
    }


    // methods

    protected internal override void CreateChildControls ()
    {
      Controls.Clear ();

      ITemplate template = LayoutTemplate;
      if (template == null)
        template = new LoginTemplate (this);

      LoginTemplateContainer.InstantiateTemplate (template);

      Controls.Add (container);

      IEditableTextControl editable;
      editable = container.UserNameTextBox as IEditableTextControl;

      if (editable != null) {
        editable.Text = UserName;
        editable.TextChanged += new EventHandler (UserName_TextChanged);
      }
      else
        throw new HttpException ("LayoutTemplate does not contain an IEditableTextControl with ID UserName for the username.");

      editable = container.PasswordTextBox as IEditableTextControl;

      if (editable != null)
        editable.TextChanged += new EventHandler (Password_TextChanged);
      else
        throw new HttpException ("LayoutTemplate does not contain an IEditableTextControl with ID Password for the password.");

      ICheckBoxControl checkBox = container.RememberMeCheckBox as ICheckBoxControl;

      if (checkBox != null)
        checkBox.CheckedChanged += new EventHandler (RememberMe_CheckedChanged);
    }

    protected override void LoadViewState (object savedState)
    {
      if (savedState == null) {
        base.LoadViewState (null);
        return;
      }

      object[] state = (object[]) savedState;
      base.LoadViewState (state [0]);
      if (state [1] != null)
        (LoginButtonStyle as IStateManager).LoadViewState (state [1]);
      if (state [2] != null)
        (LabelStyle as IStateManager).LoadViewState (state [2]);
      if (state [3] != null)
        (TextBoxStyle as IStateManager).LoadViewState (state [3]);
      if (state [4] != null)
        (HyperLinkStyle as IStateManager).LoadViewState (state [4]);
      if (state [5] != null)
        (InstructionTextStyle as IStateManager).LoadViewState (state [5]);
      if (state [6] != null)
        (TitleTextStyle as IStateManager).LoadViewState (state [6]);
      if (state [7] != null)
        (CheckBoxStyle as IStateManager).LoadViewState (state [7]);
      if (state [8] != null)
        (FailureTextStyle as IStateManager).LoadViewState (state [8]);
      if (state [9] != null)
        (ValidatorTextStyle as IStateManager).LoadViewState (state [9]);
    }

    bool HasOnAuthenticateHandler ()
    {
      return Events [authenticateEvent] != null;
    }

    protected virtual void OnAuthenticate (AuthenticateEventArgs e)
    {
      // this gets called after OnLoggingIn and the authentication so we can change the result
      AuthenticateEventHandler authenticate = (AuthenticateEventHandler) Events [authenticateEvent];
      if (authenticate != null)
        authenticate (this, e);
    }

    protected override bool OnBubbleEvent (object source, EventArgs e)
    {
      // check for submit button
      CommandEventArgs cea = (e as CommandEventArgs);
      if ((cea != null) &&
          String.Equals (cea.CommandName, LoginButtonCommandName, StringComparison.InvariantCultureIgnoreCase)) {
        if (!AuthenticateUser ()) {
          ITextControl failureText = LoginTemplateContainer.FailureTextLiteral;
          if (failureText != null)
            failureText.Text = FailureText;
        }
        return true;
      }
      return false;
    }

    protected virtual void OnLoggedIn (EventArgs e)
    {
      // this gets called only if the authentication was successful
      EventHandler loggedIn = (EventHandler) Events [loggedInEvent];
      if (loggedIn != null)
        loggedIn (this, e);
    }

    protected virtual void OnLoggingIn (LoginCancelEventArgs e)
    {
      // this gets called before OnAuthenticate so we can abort the authentication process
      LoginCancelEventHandler loggingIn = (LoginCancelEventHandler) Events [loggingInEvent];
      if (loggingIn != null)
        loggingIn (this, e);
    }

    protected virtual void OnLoginError (EventArgs e)
    {
      // this gets called only if the authentication wasn't successful
      EventHandler loginError = (EventHandler) Events [loginErrorEvent];
      if (loginError != null)
        loginError (this, e);
    }

    [MonoTODO ("overriden for ?")]
    protected internal override void OnPreRender (EventArgs e)
    {
      base.OnPreRender (e);
      // note: doc says that UserName and Password aren't available at 
      // PageLoad but are during PreRender phase, so... ???
    }

    protected internal override void Render (HtmlTextWriter writer)
    {
      // VisibleWhenLoggedIn isn't applicable to the default login page
      if (!VisibleWhenLoggedIn && !IsDefaultLoginPage () && IsLoggedIn ())
        return;

      if (Page != null) {
        Page.VerifyRenderingInServerForm (this);
      }

      EnsureChildControls ();

      foreach (object [] styleDef in styles)
        ((WebControl) styleDef [0]).ApplyStyle ((Style) styleDef [1]);

      RenderContents(writer);
    }

    protected override object SaveViewState ()
    {
      object[] state = new object [10];
      state [0] = base.SaveViewState ();
      if (logonButtonStyle != null)
        state [1] = (logonButtonStyle as IStateManager).SaveViewState ();
      if (labelStyle != null)
        state [2] = (labelStyle as IStateManager).SaveViewState ();
      if (textBoxStyle != null)
        state [3] = (textBoxStyle as IStateManager).SaveViewState ();
      if (hyperLinkStyle != null)
        state [4] = (hyperLinkStyle as IStateManager).SaveViewState ();
      if (instructionTextStyle != null)
        state [5] = (instructionTextStyle as IStateManager).SaveViewState ();
      if (titleTextStyle != null)
        state [6] = (titleTextStyle as IStateManager).SaveViewState ();
      if (checkBoxStyle != null)
        state [7] = (checkBoxStyle as IStateManager).SaveViewState ();
      if (failureTextStyle != null)
        state [8] = (failureTextStyle as IStateManager).SaveViewState ();
      if (validatorTextStyle != null)
        state [9] = (validatorTextStyle as IStateManager).SaveViewState ();

      for (int i=0; i < state.Length; i++) {
        if (state [0] != null)
          return (object) state;
      }
      return null; // reduce view state
    }

    [MonoTODO ("for design-time usage - no more details available")]
    protected override void SetDesignModeState (IDictionary data)
    {
      base.SetDesignModeState (data);
    }

    protected override void TrackViewState ()
    {
      base.TrackViewState ();
      if (logonButtonStyle != null)
        (logonButtonStyle as IStateManager).TrackViewState ();
      if (labelStyle != null)
        (labelStyle as IStateManager).TrackViewState ();
      if (textBoxStyle != null)
        (textBoxStyle as IStateManager).TrackViewState ();
      if (hyperLinkStyle != null)
        (hyperLinkStyle as IStateManager).TrackViewState ();
      if (instructionTextStyle != null)
        (instructionTextStyle as IStateManager).TrackViewState ();
      if (titleTextStyle != null)
        (titleTextStyle as IStateManager).TrackViewState ();
      if (checkBoxStyle != null)
        (checkBoxStyle as IStateManager).TrackViewState ();
      if (failureTextStyle != null)
        (failureTextStyle as IStateManager).TrackViewState ();
      if (validatorTextStyle != null)
        (validatorTextStyle as IStateManager).TrackViewState ();
    }


    // events

    public event AuthenticateEventHandler Authenticate {
      add { Events.AddHandler (authenticateEvent, value); }
      remove { Events.RemoveHandler (authenticateEvent, value); }
    }

    public event EventHandler LoggedIn {
      add { Events.AddHandler (loggedInEvent, value); }
      remove { Events.RemoveHandler (loggedInEvent, value); }
    }

    public event LoginCancelEventHandler LoggingIn {
      add { Events.AddHandler (loggingInEvent, value); }
      remove { Events.RemoveHandler (loggingInEvent, value); }
    }

    public event EventHandler LoginError {
      add { Events.AddHandler (loginErrorEvent, value); }
      remove { Events.RemoveHandler (loginErrorEvent, value); }
    }


    // private stuff

    internal void RegisterApplyStyle (WebControl control, Style style)
    {
      styles.Add (new object [] { control, style });
    }
    
    bool AuthenticateUser ()
    {
      if (!Page.IsValid)
        return true;

      LoginCancelEventArgs lcea = new LoginCancelEventArgs ();
      OnLoggingIn (lcea);
      if (lcea.Cancel)
        return true;

      AuthenticateEventArgs aea = new AuthenticateEventArgs ();
      
      if (!HasOnAuthenticateHandler ()) {
        string mp = MembershipProvider;
        MembershipProvider provider = (mp.Length == 0) ?
          provider = Membership.Provider : Membership.Providers [mp];
        if (provider == null) {
          throw new HttpException (Locale.GetText ("No provider named '{0}' could be found.", mp));
        }

        aea.Authenticated = provider.ValidateUser (UserName, Password);
      }
      OnAuthenticate (aea);

      if (aea.Authenticated) {
        FormsAuthentication.SetAuthCookie (UserName, RememberMeSet);
        OnLoggedIn (EventArgs.Empty);

        string url = DestinationPageUrl;
        if (Page.Request.Path.StartsWith (FormsAuthentication.LoginUrl, StringComparison.InvariantCultureIgnoreCase)) {
          if (!String.IsNullOrEmpty (FormsAuthentication.ReturnUrl))
            Redirect (FormsAuthentication.ReturnUrl);
          else if (!String.IsNullOrEmpty (DestinationPageUrl))
            Redirect (url);
          else if (!String.IsNullOrEmpty (FormsAuthentication.DefaultUrl))
            Redirect (FormsAuthentication.DefaultUrl);
          else if (url.Length == 0)
            Refresh ();
        }
        else if (!String.IsNullOrEmpty (DestinationPageUrl)) {
          Redirect (url);
        }
        else {
          Refresh ();
        }
        return true;
      }
      else {
        OnLoginError (EventArgs.Empty);
        if (FailureAction == LoginFailureAction.RedirectToLoginPage) {
          // login page is defined in web.config
          FormsAuthentication.RedirectToLoginPage ();
        }
        return false;
      }
    }

    // TODO: its called from default template only, not usefully, OnBubbleEvent 
    // do handle command, need be removed
    [MonoTODO()]
    void LoginClick (object sender, CommandEventArgs e)
    {
      RaiseBubbleEvent (sender, (EventArgs)e);
    }

    bool IsDefaultLoginPage ()
    {
      if ((Page == null) || (Page.Request == null))
        return false;
      string defaultLogin = FormsAuthentication.LoginUrl;
      if (defaultLogin == null)
        return false;
      string url = Page.Request.Url.AbsolutePath;
      return (String.Compare (defaultLogin, 0, url, url.Length - defaultLogin.Length, defaultLogin.Length,
        true, Helpers.InvariantCulture) == 0);
    }

    bool IsLoggedIn ()
    {
      if ((Page == null) || (Page.Request == null))
        return false;
      return Page.Request.IsAuthenticated;
    }

    void Redirect (string url)
    {
      if ((Page != null) && (Page.Response != null))
        Page.Response.Redirect (url);
    }
    
    void Refresh () {
      if ((Page != null) && (Page.Response != null))
        Page.Response.Redirect (Page.Request.RawUrl);
    }

    void UserName_TextChanged (object sender, EventArgs e)
    {
      UserName = ((ITextControl)sender).Text;
    }

    void Password_TextChanged (object sender, EventArgs e)
    {
      _password = ((ITextControl)sender).Text;
    }

    void RememberMe_CheckedChanged (object sender, EventArgs e)
    {
      RememberMeSet = ((ICheckBoxControl)sender).Checked;
    }
  }
}

#endif
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