xenadmin/XenAdmin/Dialogs/OptionsPages/SaveAndRestoreOptionsPage.cs

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/* Copyright (c) Citrix Systems Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms,
* with or without modification, are permitted provided
* that the following conditions are met:
*
* * Redistributions of source code must retain the above
* copyright notice, this list of conditions and the
* following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the
* following disclaimer in the documentation and/or other
* materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Drawing;
using System.Data;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using XenAdmin.Actions;
using XenAdmin.Core;
using XenAdmin.Dialogs.RestoreSession;
using XenAdmin.Properties;
namespace XenAdmin.Dialogs.OptionsPages
{
/// <summary>
/// The page is used to set whether or not to save server usernames and passwords and whether a master password should be set to protect these passwords
/// </summary>
public partial class SaveAndRestoreOptionsPage : UserControl, IOptionsPage
{
private static readonly log4net.ILog log = log4net.LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);
private byte[] TemporaryMasterPassword;
// call save serverlist on OK
protected internal bool SaveAllAfter { get; set; }
public SaveAndRestoreOptionsPage()
{
InitializeComponent();
// setup all the controls with the current state of the settings
FillCurrentSettings();
}
public static void Log()
{
// SSL Certificates
log.Info("=== SaveSession: " + Properties.Settings.Default.SaveSession.ToString());
log.Info("=== RequirePass: " + Properties.Settings.Default.RequirePass.ToString());
}
// all prompts for old password should have been made
private void SaveEverything()
{
if (!Registry.AllowCredentialSave)
{
return;
}
if (!saveStateCheckBox.Checked)
{
// save nothing and nobody (personally my two favourite servers anyway...)
Properties.Settings.Default.SaveSession = false;
Properties.Settings.Default.RequirePass = false;
Program.MasterPassword = null;
}
else if (!requireMasterPasswordCheckBox.Checked)
{
// we need to save stuff but without a password
Properties.Settings.Default.SaveSession = true;
Properties.Settings.Default.RequirePass = false;
Program.MasterPassword = null;
}
else
{
// password protect stuff
Properties.Settings.Default.SaveSession = true;
Properties.Settings.Default.RequirePass = true;
// set password
Program.MasterPassword = TemporaryMasterPassword;
new ActionBase(ActionType.Information, Messages.CHANGED_MASTER_PASSWORD, Messages.CHANGED_MASTER_PASSWORD_LONG, false, true);
}
if (SaveAllAfter)
Settings.SaveServerList();
}
#region Control event handlers
private void changeMasterPasswordButton_Click(object sender, EventArgs e)
{
// tell the dialog what to use as the "current" password
using (var changePassword = new ChangeMasterPasswordDialog(TemporaryMasterPassword))
{
if (changePassword.ShowDialog(this) == DialogResult.OK)
{
// password has been successfully changed
TemporaryMasterPassword = changePassword.NewPassword;
}
}
}
private void requireMasterPasswordCheckBox_Click(object sender, EventArgs e)
{
// requireMasterPasswordCheckBox.Checked was the state before the click
// if previously checked, the user is trying to clear it => request authorization
// if previously unchecked, the user is trying to set a password
if (requireMasterPasswordCheckBox.Checked)
{
using (var enterPassword = new EnterMasterPasswordDialog(TemporaryMasterPassword))
{
if (enterPassword.ShowDialog(this) == DialogResult.OK)
{
TemporaryMasterPassword = null;
requireMasterPasswordCheckBox.Checked = false;
changeMasterPasswordButton.Enabled = false;
}
}
}
else
{
System.Diagnostics.Debug.Assert(TemporaryMasterPassword == null, "Master password is set, but not reflected on GUI");
if (TemporaryMasterPassword == null)
{
// no previous password existed => set a new one
using (var setPassword = new SetMasterPasswordDialog())
{
if (setPassword.ShowDialog(this) == DialogResult.OK)
{
TemporaryMasterPassword = setPassword.NewPassword;
requireMasterPasswordCheckBox.Checked = true;
changeMasterPasswordButton.Enabled = true;
}
}
}
else
{
// a previous password existed (should never get here but just in case)
// enable button to facilitate password change
requireMasterPasswordCheckBox.Checked = true;
changeMasterPasswordButton.Enabled = true;
}
}
}
private void saveStateCheckBox_Click(object sender, EventArgs e)
{
// need to prevent the user from going to an open terminal and clearing
// the save state, then setting the master password to anything they like
// saveStateCheckBox.Checked was the state before the click
// if previously checked, the user is trying to clear it => authorization maybe required
// (depending on the state of the requireMasterPasswordCheckBox; this should be cleared too if checked)
if (saveStateCheckBox.Checked && requireMasterPasswordCheckBox.Checked)
{
using (var enterPassword = new EnterMasterPasswordDialog(TemporaryMasterPassword))
{
if (enterPassword.ShowDialog(this) == DialogResult.OK)
{
TemporaryMasterPassword = null;
saveStateCheckBox.Checked = false;
requireMasterPasswordCheckBox.Checked = false;
masterPasswordGroupBox.Enabled = false;
}
}
}
else
{
saveStateCheckBox.Checked = !saveStateCheckBox.Checked;
masterPasswordGroupBox.Enabled = saveStateCheckBox.Checked;
changeMasterPasswordButton.Enabled = requireMasterPasswordCheckBox.Checked;
}
}
#endregion
private void FillCurrentSettings()
{
bool allowCredSave = Registry.AllowCredentialSave;
bool saveSession = Properties.Settings.Default.SaveSession;
bool reqPass = Properties.Settings.Default.RequirePass;
saveStateLabel.Enabled = allowCredSave;
saveStateCheckBox.Enabled = allowCredSave;
// use the SaveSession variable to denote whether to save passwords or not
saveStateCheckBox.Checked = saveSession && allowCredSave;
masterPasswordGroupBox.Enabled = saveSession && allowCredSave;
// use the RequirePass variable to say if a master password has been set
requireMasterPasswordCheckBox.Checked = reqPass && Program.MasterPassword != null && allowCredSave;
changeMasterPasswordButton.Enabled = reqPass && Program.MasterPassword != null && allowCredSave;
// the temporary password starts as the MasterPassword
TemporaryMasterPassword = Program.MasterPassword;
}
#region IOptionsPage Members
public void Save()
{
SaveEverything();
}
#endregion
#region VerticalTab Members
public override string Text
{
get { return Messages.SAVE_AND_RESTORE; }
}
public string SubText
{
get { return Messages.SAVE_AND_RESTORE_DESC; }
}
public Image Image
{
get { return Resources._000_BackupMetadata_h32bit_16; }
}
#endregion
}
}