mirror of
https://github.com/xcp-ng/xenadmin.git
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422 lines
14 KiB
C#
422 lines
14 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.Collections.Generic;
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using System.ComponentModel;
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using System.IO;
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using System.Linq;
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using XenAdmin.Controls;
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using XenAdmin.Controls.Common;
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using XenCenterLib;
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using XenAdmin.Mappings;
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using XenAPI;
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using XenOvf;
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namespace XenAdmin.Wizards.ImportWizard
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{
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/// <summary>
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/// Class representing the page of the ImportAppliance wizard where the user specifies
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/// whether to run OS fixups.
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/// </summary>
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internal partial class ImportOptionsPage : XenTabPage
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{
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private IEnumerable<Host> m_hostTargets;
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private bool m_buttonNextEnabled;
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private readonly List<SR> m_srsWithRegisteredEvents = new List<SR>();
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private readonly CollectionChangeEventHandler PBD_CollectionChangedWithInvoke;
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public ImportOptionsPage()
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{
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InitializeComponent();
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m_radioButtonDontRunOSFixups.Checked = true;
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PBD_CollectionChangedWithInvoke = Program.ProgramInvokeHandler(PBD_CollectionChanged);
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m_ctrlError.HideError();
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}
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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 => Messages.IMPORT_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 => Messages.IMPORT_OPTIONS_PAGE_TEXT;
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protected override void PageLoadedCore(PageLoadedDirection direction)
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{
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PopulateComboBox();
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Connection.Cache.RegisterCollectionChanged<PBD>(PBD_CollectionChangedWithInvoke);
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foreach (PBD pbd in Connection.Cache.PBDs)
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{
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pbd.PropertyChanged -= server_PropertyChanged;
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pbd.PropertyChanged += server_PropertyChanged;
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}
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}
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protected override void PageLeaveCore(PageLoadedDirection direction, ref bool cancel)
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{
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DeregisterEvents();
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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 Accessors
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public bool RunFixups => m_radioButtonRunOSFixups.Checked;
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public SR SelectedIsoSR { get; private set; }
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public Dictionary<string, VmMapping> VmMappings
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{
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set { m_hostTargets = from VmMapping mapping in value.Values select Connection.Resolve(mapping.XenRef as XenRef<Host>); }
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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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var success = m_ctrlError.PerformCheck(checks);
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m_buttonNextEnabled = success;
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m_pictureBoxInfo.Visible = m_labelFixupISOInfo.Visible = success;
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OnPageUpdated();
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return success;
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}
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private bool IsIsoSrSelectable(SR sr)
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{
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return sr.content_type.ToLower() == "iso"
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&& sr.type.ToLower() == "iso"
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&& !sr.IsToolsSR()
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&& m_hostTargets.All(sr.CanBeSeenFrom); //returns true if the list is empty
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}
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private void DeregisterEvents()
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{
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if (Connection != null)
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{
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Connection.Cache.DeregisterCollectionChanged<PBD>(PBD_CollectionChangedWithInvoke);
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foreach (PBD pbd in Connection.Cache.PBDs)
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pbd.PropertyChanged -= server_PropertyChanged;
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}
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foreach (var sr in m_srsWithRegisteredEvents)
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sr.PropertyChanged -= server_PropertyChanged;
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}
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private string GetSRDropDownItemDisplayString(SR sr)
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{
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return string.Format("{0} ({1})", sr.Name(), Util.DiskSizeString(sr.FreeSpace()));
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}
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private void PopulateComboBox()
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{
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try
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{
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m_comboBoxISOLibraries.SuspendLayout();
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int selectedIndex = m_comboBoxISOLibraries.SelectedIndex;
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foreach (var item in m_comboBoxISOLibraries.Items)
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{
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if (item is ToStringWrapper<SR> wrapper && wrapper.item != null)
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wrapper.item.PropertyChanged -= server_PropertyChanged;
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}
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m_comboBoxISOLibraries.Items.Clear();
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m_comboBoxISOLibraries.Items.Add(new ToStringWrapper<SR>(null, Messages.IMPORT_OPTIONS_PAGE_CHOOSE_ISO_SR));
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m_comboBoxISOLibraries.Items.Add(new ToStringWrapper<SR>(null, Messages.IMPORT_OPTIONS_PAGE_NEW_ISO_LIBRARY));
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var isoName = OVF.GetISOFixupFileName();
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var availableSRs = Connection.Cache.SRs;
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foreach (var sr in availableSRs)
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{
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if (!IsIsoSrSelectable(sr))
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continue;
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int index = AddReplaceSrItem(sr);
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if (selectedIndex < 0)
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{
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foreach (var vdiRef in sr.VDIs)
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{
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var vdi = Connection.Resolve(vdiRef);
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if (vdi != null && vdi.name_label == isoName)
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{
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selectedIndex = index;
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break;
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}
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}
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}
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}
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if (m_comboBoxISOLibraries.SelectedIndex < 0)
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SetSelectedIndexProgrammatically(selectedIndex < 0 ? 0 : selectedIndex);
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}
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finally
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{
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m_comboBoxISOLibraries.ResumeLayout();
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}
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}
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private bool CheckFixupIsoInXencenterInstallation(out string error)
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{
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error = string.Empty;
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var theVdi = Connection.Cache.VDIs.FirstOrDefault(vdi => vdi != null && vdi.name_label == OVF.GetISOFixupFileName());
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if (theVdi != null || File.Exists(OVF.GetISOFixupPath()))
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return true;
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error = Messages.IMPORT_OPTIONS_PAGE_ERROR_NO_FIXUP_ISO_INSTALLED;
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return false;
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}
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private bool CheckCanCreateVdiOnIsoSr(out string error)
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{
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error = string.Empty;
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SM sm = null;
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if (SelectedIsoSR != null)
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sm = SM.GetByType(Connection, SelectedIsoSR.type);
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if (sm != null && sm.capabilities.Contains("VDI_CREATE"))
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return true;
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error = Messages.IMPORT_OPTIONS_PAGE_CANNOT_USE_SELECTED_ISO_LIBRARY;
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return false;
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}
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private void PBD_CollectionChanged(object sender, CollectionChangeEventArgs e)
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{
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if (!(e.Element is PBD pbd))
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return;
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switch (e.Action)
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{
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case CollectionChangeAction.Add:
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pbd.PropertyChanged -= server_PropertyChanged;
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pbd.PropertyChanged += server_PropertyChanged;
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break;
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case CollectionChangeAction.Remove:
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pbd.PropertyChanged -= server_PropertyChanged;
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break;
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}
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}
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private void server_PropertyChanged(object sender, PropertyChangedEventArgs e)
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{
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if (e.PropertyName != "name_label" && e.PropertyName != "physical_size" &&
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e.PropertyName != "physical_utilisation" &&
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e.PropertyName != "currently_attached")
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return;
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var sr = sender is PBD pbd ? Connection.Resolve(pbd.SR) : sender as SR;
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if (sr == null)
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return;
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if (IsIsoSrSelectable(sr))
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AddReplaceSrItem(sr);
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else
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RemoveSrItem(sr);
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}
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private int FindSrItem(SR sr)
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{
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var existing = m_comboBoxISOLibraries.Items.OfType<ToStringWrapper<SR>>().FirstOrDefault(wrapper => sr.Equals(wrapper.item));
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return existing == null ? -1 : m_comboBoxISOLibraries.Items.IndexOf(existing);
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}
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private int AddReplaceSrItem(SR sr)
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{
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try
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{
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m_comboBoxISOLibraries.SuspendLayout();
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int selectedIndex = m_comboBoxISOLibraries.SelectedIndex;
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int index = FindSrItem(sr);
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if (index < 0)
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{
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if (!m_srsWithRegisteredEvents.Contains(sr))
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m_srsWithRegisteredEvents.Add(sr);
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sr.PropertyChanged -= server_PropertyChanged;
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sr.PropertyChanged += server_PropertyChanged;
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index = m_comboBoxISOLibraries.Items.Count - 1;
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}
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else
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{
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m_comboBoxISOLibraries.Items.RemoveAt(index);
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}
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m_comboBoxISOLibraries.Items.Insert(index, new ToStringWrapper<SR>(sr, GetSRDropDownItemDisplayString));
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SetSelectedIndexProgrammatically(selectedIndex);
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return index;
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}
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finally
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{
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m_comboBoxISOLibraries.ResumeLayout();
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}
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}
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private void RemoveSrItem(SR sr)
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{
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int index = FindSrItem(sr);
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if (index < 0)
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return;
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sr.PropertyChanged -= server_PropertyChanged;
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m_comboBoxISOLibraries.Items.RemoveAt(index);
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if (m_comboBoxISOLibraries.SelectedIndex < 0)
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SetSelectedIndexProgrammatically(0);
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}
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private void SetSelectedIndexProgrammatically(int newIndex)
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{
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if (m_radioButtonRunOSFixups.Checked)
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{
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m_comboBoxISOLibraries.SelectedIndex = newIndex;
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return;
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}
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m_comboBoxISOLibraries.SelectedIndexChanged -= m_comboBoxISOLibraries_SelectedIndexChanged;
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try
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{
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m_comboBoxISOLibraries.SelectedIndex = newIndex;
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}
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finally
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{
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m_comboBoxISOLibraries.SelectedIndexChanged += m_comboBoxISOLibraries_SelectedIndexChanged;
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}
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}
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private bool IsNewISOLibraryItem()
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{
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return m_comboBoxISOLibraries.SelectedItem is ToStringWrapper<SR> wrapper &&
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wrapper.Equals(m_comboBoxISOLibraries.Items[m_comboBoxISOLibraries.Items.Count - 1]) &&
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wrapper.ToStringProperty.Equals(Messages.IMPORT_OPTIONS_PAGE_NEW_ISO_LIBRARY);
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}
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private void ValidateSelection()
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{
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if (m_radioButtonDontRunOSFixups.Checked)
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{
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m_buttonNextEnabled = true;
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m_pictureBoxInfo.Visible = m_labelFixupISOInfo.Visible = m_ctrlError.Visible = false;
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OnPageUpdated();
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return;
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}
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SelectedIsoSR = m_radioButtonRunOSFixups.Checked && m_comboBoxISOLibraries.SelectedItem is ToStringWrapper<SR> wrapper
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? wrapper.item
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: null;
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if (!PerformCheck((out string error) =>
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{
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error = null;
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return SelectedIsoSR != null;
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}))
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return;
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if (!PerformCheck(CheckFixupIsoInXencenterInstallation))
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return;
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var isoName = OVF.GetISOFixupFileName();
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foreach (var vdiRef in SelectedIsoSR.VDIs)
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{
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var vdi = Connection.Resolve(vdiRef);
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if (vdi != null && vdi.name_label == isoName)
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{
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m_labelFixupISOInfo.Text = Messages.IMPORT_OPTIONS_PAGE_FOUND_EXISTING_ISO;
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return;
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}
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}
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if (!PerformCheck(CheckCanCreateVdiOnIsoSr))
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return;
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m_labelFixupISOInfo.Text = Messages.IMPORT_OPTIONS_PAGE_USE_SELECTED_ISO_LIBRARY;
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}
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#endregion
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#region Control event Handlers
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private void m_comboBoxISOLibraries_SelectedIndexChanged(object sender, EventArgs e)
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{
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if (!m_radioButtonRunOSFixups.Checked)
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m_radioButtonRunOSFixups.Checked = true;
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ValidateSelection();
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if (IsNewISOLibraryItem())
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{
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var wizard = new NewSRWizard(Connection);
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wizard.CheckNFSISORadioButton();
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wizard.ShowDialog();
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}
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}
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private void m_radioButtonRunOSFixups_CheckedChanged(object sender, EventArgs e)
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{
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if (m_radioButtonRunOSFixups.Checked)
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ValidateSelection();
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}
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private void m_radioButtonDontRunOSFixups_CheckedChanged(object sender, EventArgs e)
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{
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if (m_radioButtonDontRunOSFixups.Checked)
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ValidateSelection();
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}
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#endregion
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}
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}
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