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443 lines
13 KiB
C#
443 lines
13 KiB
C#
/* Copyright (c) Citrix Systems, Inc.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms,
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* with or without modification, are permitted provided
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* that the following conditions are met:
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*
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* * Redistributions of source code must retain the above
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* copyright notice, this list of conditions and the
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* following disclaimer.
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the
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* following disclaimer in the documentation and/or other
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* materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
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* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
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* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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using System;
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using System.Drawing;
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using System.IO;
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using System.Security.Cryptography;
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using System.Security.Cryptography.X509Certificates;
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using System.Windows.Forms;
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using XenAdmin.Controls.Common;
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using XenAdmin.Core;
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using XenOvf;
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using XenAdmin.Controls;
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namespace XenAdmin.Wizards.ExportWizard
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{
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/// <summary>
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/// Class representing the page of the ExportAppliance wizard where the user specifies
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/// whether to create a manifest, sign the appliance or encrypt files and whether to
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/// create an OVA package or compress the OVF files
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/// </summary>
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internal partial class ExportOptionsPage : XenTabPage
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{
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private const int MIN_PASSWORD_STRENGTH = 1;
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private int m_passwordStrength;
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private bool m_isEncryptionOk = true;
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private bool m_isSignatureOk = true;
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private bool m_buttonNextEnabled;
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public ExportOptionsPage()
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{
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InitializeComponent();
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m_ctrlErrorCert.HideError();
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m_buttonValidate.Enabled = false;
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m_labelStrength.Visible = false;
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m_pictureBoxTick.Visible = false;
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m_pictureBoxTickValidate.Visible = false;
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m_tableLayoutPanelManifest.Enabled = m_checkBoxManifest.Checked;
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//CA-59159: encryption is not supported for Boston
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sectionHeaderLabel2.Visible = false;
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m_tableLayoutPanelEncryption.Visible = false;
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}
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#region Accessors
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/// <summary>
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/// Gets a value indicating whether to create a manifest file
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/// </summary>
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public bool CreateManifest { get { return m_checkBoxManifest.Checked; } }
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/// <summary>
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/// Gets a value indicating whether to sign the appliance
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/// </summary>
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public bool SignAppliance { get { return m_checkBoxSign.Checked; } }
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/// <summary>
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/// Gets the certificate used to create the signature
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/// </summary>
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public X509Certificate2 Certificate { get; private set; }
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/// <summary>
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/// Gets a value indicating whether to encrypt the files reference in the OVF package.
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/// </summary>
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public bool EncryptFiles { get { return m_checkBoxEncrypt.Checked; } }
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/// <summary>
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/// Gets the password used for the encryption of the OVF files
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/// </summary>
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public string EncryptPassword { get { return m_textBoxPwd.Text; } }
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/// <summary>
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/// Gets a value indicating whether the appliance will be exproted as a single OVA file
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/// </summary>
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public bool CreateOVA { get { return m_checkBoxCreateOVA.Checked; } }
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/// <summary>
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/// Gets a value indicating whether the OVF files should be compressed
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/// </summary>
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public bool CompressOVFfiles { get { return m_checkBoxCompressFiles.Checked; } }
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#endregion
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#region Base class (XenTabPage) overrides
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/// <summary>
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/// Gets the page's title (headline)
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/// </summary>
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public override string PageTitle { get { return Messages.EXPORT_OPTIONS_PAGE_TITLE; } }
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/// <summary>
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/// Gets the page's label in the (left hand side) wizard progress panel
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/// </summary>
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public override string Text { get { return Messages.EXPORT_OPTIONS_PAGE_TEXT; } }
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/// <summary>
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/// Gets the value by which the help files section for this page is identified
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/// </summary>
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public override string HelpID { get { return "ExportOptions"; } }
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public override void PageLoaded(PageLoadedDirection direction)
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{
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base.PageLoaded(direction);
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SetButtonNextEnabled(true);
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}
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public override void PageLeave(PageLoadedDirection direction, ref bool cancel)
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{
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if (direction == PageLoadedDirection.Forward && IsDirty)
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cancel = !(m_isSignatureOk && m_isEncryptionOk);
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base.PageLeave(direction, ref cancel);
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}
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protected override bool ImplementsIsDirty()
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{
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return true;
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}
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public override bool EnableNext()
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{
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return m_buttonNextEnabled;
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}
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#endregion
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#region Private methods
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/// <summary>
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/// Performs certain checks on the pages's input data and shows/hides an error accordingly
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/// </summary>
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/// <param name="checks">The checks to perform</param>
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private bool PerformCheck(params CheckDelegate[] checks)
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{
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bool success = m_ctrlErrorCert.PerformCheck(checks);
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SetButtonNextEnabled(success);
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return m_buttonNextEnabled;
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}
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private void SetButtonNextEnabled(bool enabled)
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{
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m_buttonNextEnabled = enabled;
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OnPageUpdated();
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}
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private void ToggleEncryptionCheckBoxCheckedState()
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{
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if (!string.IsNullOrEmpty(m_textBoxPwd.Text) || !string.IsNullOrEmpty(m_textBoxReEnterPwd.Text))
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m_checkBoxEncrypt.Checked = true;
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}
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private void OnCertificateInfoChanged()
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{
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if (!string.IsNullOrEmpty(m_textBoxCertificate.Text) || !string.IsNullOrEmpty(m_textBoxPrivateKeyPwd.Text))
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m_checkBoxSign.Checked = true;
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m_ctrlErrorCert.HideError();
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m_buttonValidate.Enabled = !string.IsNullOrEmpty(m_textBoxCertificate.Text) && !string.IsNullOrEmpty(m_textBoxPrivateKeyPwd.Text);
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m_pictureBoxTickValidate.Visible = false;
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m_isSignatureOk = false;
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SetButtonNextEnabled(m_isEncryptionOk && m_isSignatureOk);
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}
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private void OnEncryptionChanged()
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{
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CheckEncryption();
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SetButtonNextEnabled(m_isEncryptionOk && m_isSignatureOk);
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}
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private void OnSignatureChanged()
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{
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CheckSignature();
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SetButtonNextEnabled(m_isEncryptionOk && m_isSignatureOk);
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}
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private void CalculatePassordStrength()
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{
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if (String.IsNullOrEmpty(m_textBoxPwd.Text))
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{
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m_passwordStrength = 0;
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m_labelStrength.Visible = false;
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}
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else
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{
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m_passwordStrength = OVF.CalculateStrength(m_textBoxPwd.Text);
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string strength;
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Color foreColor;
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switch (m_passwordStrength)
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{
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case 0:
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strength = Messages.PASSPHRASE_STRENGTH_LOW;
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foreColor = Color.Red;
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break;
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case 1:
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strength = Messages.PASSPHRASE_STRENGTH_FAIR;
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foreColor = Color.DarkOrange;
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break;
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case 2:
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strength = Messages.PASSPHRASE_STRENGTH_GOOD;
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foreColor = Color.Blue;
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break;
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case 3:
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strength = Messages.PASSPHRASE_STRENGTH_STRONG;
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foreColor = Color.Green;
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break;
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default:
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strength = Messages.PASSPHRASE_STRENGTH_UNKNOWN;
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foreColor = Color.FromKnownColor(KnownColor.WindowText);
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break;
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}
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m_labelStrength.Visible = true;
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m_labelStrength.Text = string.Format(Messages.PASSPHRASE_STRENGTH_PROMPT, strength);
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m_labelStrength.ForeColor = foreColor;
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}
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}
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private void CheckEncryption()
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{
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if (m_checkBoxEncrypt.Checked)
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{
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if (String.IsNullOrEmpty(m_textBoxPwd.Text) || String.IsNullOrEmpty(m_textBoxReEnterPwd.Text))
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{
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m_isEncryptionOk = false;
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m_pictureBoxTick.Visible = false;
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return;
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}
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if (m_textBoxPwd.Text != m_textBoxReEnterPwd.Text)
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{
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m_isEncryptionOk = false;
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m_pictureBoxTick.Visible = false;
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return;
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}
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m_pictureBoxTick.Visible = true;
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if (m_passwordStrength < MIN_PASSWORD_STRENGTH)
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{
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m_isEncryptionOk = false;
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return;
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}
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}
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m_isEncryptionOk = true;
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}
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private void CheckSignature()
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{
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if (m_checkBoxManifest.Checked && m_checkBoxSign.Checked)
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{
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if (String.IsNullOrEmpty(m_textBoxCertificate.Text) || String.IsNullOrEmpty(m_textBoxPrivateKeyPwd.Text)
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|| !PerformCheck(CheckCertificatePathValid, CheckCertificatePathExists, CheckSignPasswordValid, CheckCertificateValid))
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{
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m_pictureBoxTickValidate.Visible = false;
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m_isSignatureOk = false;
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return;
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}
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m_pictureBoxTickValidate.Visible = true;
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m_buttonValidate.Enabled = false;
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}
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m_isSignatureOk = true;
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}
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private bool CheckCertificatePathValid(out string error)
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{
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error = string.Empty;
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if (!PathValidator.IsPathValid(m_textBoxCertificate.Text))//includes null check
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{
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error = Messages.EXPORT_SECURITY_PAGE_ERROR_INVALID_CERT;
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return false;
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}
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return true;
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}
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private bool CheckCertificatePathExists(out string error)
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{
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error = string.Empty;
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if (!File.Exists(m_textBoxCertificate.Text))
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{
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error = Messages.EXPORT_SECURITY_PAGE_ERROR_CERT_NON_EXIST;
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return false;
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}
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return true;
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}
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private bool CheckSignPasswordValid(out string error)
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{
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error = string.Empty;
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try
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{
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Certificate = new X509Certificate2(m_textBoxCertificate.Text, m_textBoxPrivateKeyPwd.Text);
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}
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catch (CryptographicException)
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{
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error = Messages.EXPORT_SECURITY_PAGE_ERROR_SIGN_INVALID;
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return false;
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}
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return true;
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}
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/// <summary>
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/// Verify the certificate used to sign the package.
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/// </summary>
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private bool CheckCertificateValid(out string error)
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{
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error = string.Empty;
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try
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{
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if (Certificate != null && Certificate.Verify())
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return true;
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}
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catch (CryptographicException)
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{ }
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error = Messages.EXPORT_SECURITY_PAGE_ERROR_CERTIFICATE_INVALID;
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return false;
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}
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#endregion
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#region Control event handlers
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private void m_checkBoxManifest_CheckedChanged(object sender, EventArgs e)
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{
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m_tableLayoutPanelManifest.Enabled = m_checkBoxManifest.Checked;
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OnSignatureChanged();
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IsDirty = true;
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}
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private void m_checkBoxSign_CheckedChanged(object sender, EventArgs e)
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{
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OnSignatureChanged();
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IsDirty = true;
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}
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private void m_buttonBrowseCert_Click(object sender, EventArgs e)
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{
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using (OpenFileDialog openFileDlog = new OpenFileDialog
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{
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CheckFileExists = true,
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CheckPathExists = true,
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DereferenceLinks = true,
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Filter = Messages.EXPORT_SECURITY_PAGE_FILETYPES,
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Multiselect = false,
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RestoreDirectory = true
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})
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{
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if (openFileDlog.ShowDialog() == DialogResult.OK)
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m_textBoxCertificate.Text = openFileDlog.FileName;
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}
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}
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private void m_textBoxCertificate_TextChanged(object sender, EventArgs e)
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{
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OnCertificateInfoChanged();
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IsDirty = true;
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}
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private void m_textBoxPrivateKeyPwd_TextChanged(object sender, EventArgs e)
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{
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OnCertificateInfoChanged();
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//no need to notify IsDirty here, this is only for data validation
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}
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private void m_buttonValidate_Click(object sender, EventArgs e)
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{
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OnSignatureChanged();
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}
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private void m_checkBoxEncrypt_CheckedChanged(object sender, EventArgs e)
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{
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OnEncryptionChanged();
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IsDirty = true;
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}
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private void m_textBoxPwd_TextChanged(object sender, EventArgs e)
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{
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ToggleEncryptionCheckBoxCheckedState();
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CalculatePassordStrength();
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OnEncryptionChanged();
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IsDirty = true;
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}
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private void m_textBoxReEnterPwd_TextChanged(object sender, EventArgs e)
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{
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ToggleEncryptionCheckBoxCheckedState();
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OnEncryptionChanged();
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//no need to notify IsDirty here, this is only for data validation
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}
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private void m_checkBoxCreateOVA_CheckedChanged(object sender, System.EventArgs e)
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{
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IsDirty = true;
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}
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private void m_checkBoxCompressFiles_CheckedChanged(object sender, System.EventArgs e)
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{
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IsDirty = true;
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}
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#endregion
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}
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}
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