xenadmin/XenAdmin/Wizards/ImportWizard/ImportSecurityPage.cs

197 lines
6.1 KiB
C#
Raw Normal View History

/* 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.Security.Cryptography;
using System.Security.Cryptography.X509Certificates;
using System.Windows.Forms;
using XenOvf;
using XenAdmin.Controls;
namespace XenAdmin.Wizards.ImportWizard
{
/// <summary>
/// Class representing the page of the ImportAppliance wizard where the user verifies
/// digital signature and encryption (if these options where included with the imported appliance)
/// </summary>
internal partial class ImportSecurityPage : XenTabPage
{
private bool m_hasManifest;
private bool m_hasSignature;
private bool m_detectedMissingCertificate;
private bool m_buttonNextEnabled;
public ImportSecurityPage()
{
InitializeComponent();
m_ctrlError.HideError();
}
#region Base class (XenTabPage) overrides
/// <summary>
/// Gets the page's title (headline)
/// </summary>
public override string PageTitle { get { return Messages.IMPORT_SECURITY_PAGE_TITLE; } }
/// <summary>
/// Gets the page's label in the (left hand side) wizard progress panel
/// </summary>
public override string Text { get { return Messages.IMPORT_SECURITY_PAGE_TEXT; } }
/// <summary>
/// Gets the value by which the help files section for this page is identified
/// </summary>
public override string HelpID { get { return "Security"; } }
protected override bool ImplementsIsDirty()
{
return true;
}
public override void PageLoaded(PageLoadedDirection direction)
{
base.PageLoaded(direction);//call first so the page gets populated
if (direction == PageLoadedDirection.Forward)
SetButtonNextEnabled(OkToProceed());
}
protected override void PageLeaveCore(PageLoadedDirection direction, ref bool cancel)
{
if (direction == PageLoadedDirection.Forward && IsDirty)
cancel = !OkToProceed();
}
public override void CheckPageDisabled()
{
m_hasManifest = SelectedOvfPackage.HasManifest();
m_hasSignature = SelectedOvfPackage.HasSignature();
DisableStep = !m_hasManifest && !m_hasSignature;
}
public override void PopulatePage()
{
if (DisableStep)//defensive check
return;
m_tlpManifest.Enabled = m_hasManifest || m_hasSignature;
m_linkCertificate.Visible = m_hasSignature;
if (m_hasSignature)//check for signature first because m_hasManifest is True if m_hasSignature is True
{
m_checkBoxVerify.Text = Messages.IMPORT_SECURITY_PAGE_VERIFY_PRODUCER;
m_labelVerify.Text = Messages.IMPORT_SECURITY_PAGE_VERIFY_PRODUCER_DESCRIPTION;
}
else
{
m_checkBoxVerify.Text = Messages.IMPORT_SECURITY_PAGE_VERIFY_CONTENT;
m_labelVerify.Text = Messages.IMPORT_SECURITY_PAGE_VERIFY_CONTENT_DESCRIPTION;
}
}
public override bool EnableNext()
{
return m_buttonNextEnabled;
}
#endregion
#region Accessors
/// <summary>
/// Can be null if no encryption is detected
/// </summary>
public string Password { get; private set; }
public bool VerifyManifest { get { return m_hasManifest && m_tlpManifest.Enabled && m_checkBoxVerify.Checked; } }
public bool VerifySignature { get { return m_hasSignature && m_tlpManifest.Enabled && m_checkBoxVerify.Checked; } }
/// <summary>
/// Package containing the selected OVF appliance.
/// </summary>
public Package SelectedOvfPackage { private get; set; }
#endregion
#region Private methods
private void SetButtonNextEnabled(bool enabled)
{
m_buttonNextEnabled = enabled;
OnPageUpdated();
}
private bool OkToProceed()
{
if (m_checkBoxVerify.Checked && m_detectedMissingCertificate)
return false;
return true;
}
private void CheckCanDisplayCertificate()
{
m_ctrlError.HideError();
try
{
X509Certificate2UI.DisplayCertificate(SelectedOvfPackage.Certificate);
}
catch (CryptographicException)
{
m_ctrlError.ShowError(Messages.IMPORT_SECURITY_PAGE_ERROR_MISSING_CERTIFICATE);
m_detectedMissingCertificate = true;
}
}
#endregion
#region Control event handlers
private void m_linkCertificate_LinkClicked(object sender, LinkLabelLinkClickedEventArgs e)
{
CheckCanDisplayCertificate();
SetButtonNextEnabled(OkToProceed());
}
private void m_checkBoxVerify_CheckedChanged(object sender, EventArgs e)
{
SetButtonNextEnabled(OkToProceed());
IsDirty = true;
}
#endregion
}
}