xenadmin/XenAdmin/Wizards/PatchingWizard/PatchingWizard_UploadPage.cs
2015-07-21 11:40:45 +01:00

508 lines
21 KiB
C#

using System.Collections.Generic;
using System.Drawing;
using System.Linq;
using System.Windows.Forms;
using XenAdmin.Actions;
using XenAdmin.Controls;
using XenAdmin.Core;
using XenAdmin.Dialogs;
using XenAPI;
using XenAdmin.Alerts;
using System;
using System.IO;
namespace XenAdmin.Wizards.PatchingWizard
{
public partial class PatchingWizard_UploadPage : XenTabPage
{
private static readonly log4net.ILog log = log4net.LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);
private DownloadAndUnzipXenServerPatchAction downloadAction = null;
private const int EllipsiseValueDownDescription = 50;
public PatchingWizard_UploadPage()
{
InitializeComponent();
}
public override string Text { get { return Messages.PATCHINGWIZARD_UPLOADPAGE_TEXT; } }
public override string PageTitle { get { return Messages.PATCHINGWIZARD_UPLOADPAGE_TITLE; } }
public override string HelpID { get { return "UploadPatch"; } }
#region Accessors
public List<Host> SelectedMasters { private get; set; }
public List<Host> SelectedServers { private get; set; }
public UpdateType SelectedUpdateType { private get; set; }
public string SelectedNewPatch { get; set; }
public Pool_patch SelectedExistingPatch { private get; set; }
public Alert SelectedUpdateAlert { private get; set; }
public readonly List<Pool_patch> NewUploadedPatches = new List<Pool_patch>();
private Pool_patch _patch = null;
public Pool_patch Patch
{
get { return _patch; }
}
public Dictionary<string, string> AllDownloadedPatches = new Dictionary<string, string>();
public readonly List<VDI> AllCreatedSuppPackVdis = new List<VDI>();
public Dictionary<Host, VDI> SuppPackVdis = new Dictionary<Host, VDI>();
#endregion
public override void PageLoaded(PageLoadedDirection direction)
{
base.PageLoaded(direction);
canUpload = true;
canDownload = true;
UpdateButtons();
if (SelectedUpdateType == UpdateType.Existing)
_patch = SelectedExistingPatch;
if (direction == PageLoadedDirection.Forward)
{
flickerFreeListBox1.Items.Clear();
var selectedPatch = SelectedUpdateAlert != null ? ((XenServerPatchAlert)SelectedUpdateAlert).Patch : null;
if (selectedPatch != null && String.IsNullOrEmpty(SelectedNewPatch) &&
(!AllDownloadedPatches.Any(kvp => kvp.Key == selectedPatch.Uuid)
|| String.IsNullOrEmpty(AllDownloadedPatches[selectedPatch.Uuid])
|| !File.Exists(AllDownloadedPatches[selectedPatch.Uuid])))
{
DownloadFile();
}
else
{
if (selectedPatch != null && AllDownloadedPatches.ContainsKey(selectedPatch.Uuid))
SelectedNewPatch = AllDownloadedPatches[selectedPatch.Uuid];
PrepareUploadActions();
TryUploading();
}
}
}
private void DownloadFile()
{
string patchUri = ((XenServerPatchAlert)SelectedUpdateAlert).Patch.PatchUrl;
if (string.IsNullOrEmpty(patchUri))
return;
Uri address = new Uri(patchUri);
string tempFile = Path.GetTempFileName();
downloadAction = new DownloadAndUnzipXenServerPatchAction(SelectedUpdateAlert.Name, address, tempFile);
if (downloadAction != null)
{
downloadAction.Changed += singleAction_Changed;
downloadAction.Completed += singleAction_Completed;
}
downloadAction.RunAsync();
flickerFreeListBox1.Items.Clear();
flickerFreeListBox1.Items.Add(downloadAction);
flickerFreeListBox1.Refresh();
OnPageUpdated();
UpdateActionProgress(downloadAction);
}
public override void PageCancelled()
{
foreach (var action in uploadActions.Values.Where(action => action != null && !action.IsCompleted))
{
CancelAction(action);
}
if (downloadAction != null)
{
CancelAction(downloadAction);
}
}
public override bool EnableNext()
{
return uploadActions.Values.All(action => action == null || action.Succeeded) && (downloadAction == null || downloadAction.Succeeded);
}
public override bool EnablePrevious()
{
return !canUpload || uploadActions.Values.All(action => action == null || action.IsCompleted) && (downloadAction == null || downloadAction.IsCompleted) ;
}
private Dictionary<Host, AsyncAction> uploadActions = new Dictionary<Host, AsyncAction>();
private static bool PatchExistsOnPool(Pool_patch patch, Host poolMaster)
{
var poolPatches = new List<Pool_patch>(poolMaster.Connection.Cache.Pool_patches);
return (poolPatches.Exists(p => p.uuid == patch.uuid));
}
private void PrepareUploadActions()
{
OnPageUpdated();
SuppPackVdis.Clear();
uploadActions.Clear();
//Upload the patches to the masters if it is necessary
List<Host> masters = SelectedMasters;
foreach (Host selectedServer in masters)
{
AsyncAction action = null;
switch (SelectedUpdateType)
{
case UpdateType.NewRetail:
if (_patch == null || !PatchExistsOnPool(_patch, selectedServer))
{
action = new UploadPatchAction(selectedServer.Connection, SelectedNewPatch, true);
}
break;
case UpdateType.Existing:
if (!PatchExistsOnPool(_patch, selectedServer))
{
//Download patch from server Upload in the selected server
action = new CopyPatchFromHostToOther(SelectedExistingPatch.Connection, selectedServer,
SelectedExistingPatch);
}
break;
case UpdateType.NewSuppPack:
action = new UploadSupplementalPackAction(
selectedServer.Connection,
SelectedServers.Where(s => s.Connection == selectedServer.Connection).ToList(),
SelectedNewPatch,
true);
break;
}
if (action != null)
{
action.Changed += singleAction_Changed;
action.Completed += singleAction_Completed;
}
uploadActions.Add(selectedServer, action);
}
foreach (KeyValuePair<Host, AsyncAction> uploadAction in uploadActions)
{
flickerFreeListBox1.Items.Add(uploadAction);
}
flickerFreeListBox1.Refresh();
OnPageUpdated();
}
private bool canUpload = true;
private bool canDownload = true;
private DiskSpaceRequirements diskSpaceRequirements;
private void TryUploading()
{
// reset progress bar and action progress description
UpdateActionProgress(null);
// Check if we can upload the patches to the masters if it is necessary.
// This check is only available for Cream or greater hosts.
// If we can upload (i.e. there is enough disk space) then start the upload.
// Otherwise display error.
canUpload = true;
diskSpaceRequirements = null;
var diskSpaceActions = new List<AsyncAction>();
foreach (Host master in SelectedMasters.Where(master => Helpers.CreamOrGreater(master.Connection)))
{
AsyncAction action = null;
switch (SelectedUpdateType)
{
case UpdateType.NewRetail:
action = new CheckDiskSpaceForPatchUploadAction(master, SelectedNewPatch, true);
break;
case UpdateType.Existing:
if (SelectedExistingPatch != null && !PatchExistsOnPool(SelectedExistingPatch, master))
action = new CheckDiskSpaceForPatchUploadAction(master, SelectedExistingPatch, true);
break;
}
if (action != null)
{
action.Changed += delegate
{
Program.Invoke(Program.MainWindow, () => UpdateActionDescription(action));
};
diskSpaceActions.Add(action);
}
}
if (diskSpaceActions.Count == 0)
{
StartUploading();
return;
}
using (var multipleAction = new MultipleAction(Connection, "", "", "", diskSpaceActions, true, true, true))
{
multipleAction.Completed += delegate
{
Program.Invoke(Program.MainWindow, () =>
{
if (multipleAction.Exception is NotEnoughSpaceException)
{
canUpload = false;
diskSpaceRequirements = (multipleAction.Exception as NotEnoughSpaceException).DiskSpaceRequirements;
}
UpdateButtons();
OnPageUpdated();
if (canUpload)
StartUploading();
});
};
multipleAction.RunAsync();
}
}
private void StartUploading()
{
// reset progress bar and action progress description
UpdateActionProgress(null);
// start the upload
var actions = uploadActions.Values.Where(a => a != null).ToList();
if (actions.Count == 0)
return;
using (var multipleAction = new MultipleAction(Connection, Messages.UPLOAD_PATCH_TITLE, Messages.UPLOAD_PATCH_DESCRIPTION, Messages.UPLOAD_PATCH_END_DESCRIPTION, actions, true, true, true))
{
multipleAction.Completed += multipleAction_Completed;
multipleAction.RunAsync();
}
}
private void UpdateButtons()
{
if (!canUpload && diskSpaceRequirements != null)
{
errorLinkLabel.Visible = true;
errorLinkLabel.Text = diskSpaceRequirements.GetMessageForActionLink();
}
else if (!canDownload)
{
errorLinkLabel.Visible = true;
errorLinkLabel.Text = Messages.PATCHINGWIZARD_MORE_INFO;
}
else
errorLinkLabel.Visible = false;
}
private void UpdateActionProgress(AsyncAction action)
{
UpdateActionDescription(action);
progressBar1.Value = action == null ? 0 : action.PercentComplete;
}
private void UpdateActionDescription(AsyncAction action)
{
if (action == null) // reset action description
{
labelProgress.Text = "";
labelProgress.ForeColor = SystemColors.ControlText;
}
else if (action.StartedRunning) // update description for started actions
{
labelProgress.Text = GetActionDescription(action);
labelProgress.ForeColor = !action.IsCompleted || action.Succeeded ? SystemColors.ControlText : Color.Red;
}
}
private static string GetActionDescription(AsyncAction action)
{
return !action.StartedRunning ? "" :
action.Exception == null
? action.Description
: action.Exception is CancelledException ? Messages.CANCELLED_BY_USER : action.Exception.Message;
}
private void CancelAction(AsyncAction action)
{
Program.AssertOnEventThread();
OnPageUpdated();
action.Changed -= singleAction_Changed;
action.Completed -= singleAction_Completed;
action.Cancel();
}
private void singleAction_Changed(object sender)
{
var action = sender as AsyncAction;
if (action == null)
return;
Program.Invoke(this, () =>
{
UpdateActionProgress(action);
flickerFreeListBox1.Refresh();
OnPageUpdated();
});
}
private void singleAction_Completed(ActionBase sender)
{
var action = sender as AsyncAction;
if (action == null)
return;
action.Changed -= singleAction_Changed;
action.Completed -= singleAction_Completed;
Program.Invoke(this, () =>
{
if (action.Succeeded)
{
Host master = Helpers.GetMaster(action.Connection);
if (action is UploadPatchAction)
_patch = (action as UploadPatchAction).PatchRefs[master];
if (action is CopyPatchFromHostToOther && action.Host != null)
_patch = action.Host.Connection.Cache.Resolve((action as CopyPatchFromHostToOther).NewPatchRef);
if (_patch != null && !NewUploadedPatches.Contains(_patch))
NewUploadedPatches.Add(_patch);
if (action is UploadSupplementalPackAction)
{
foreach (var vdiRef in (action as UploadSupplementalPackAction).VdiRefs)
SuppPackVdis[vdiRef.Key] = action.Connection.Resolve(vdiRef.Value);
AllCreatedSuppPackVdis.AddRange(SuppPackVdis.Values.Where(vdi => !AllCreatedSuppPackVdis.Contains(vdi)));
}
if (action is DownloadAndUnzipXenServerPatchAction)
{
SelectedNewPatch = ((DownloadAndUnzipXenServerPatchAction)action).PatchPath;
if (SelectedUpdateAlert is XenServerPatchAlert && (SelectedUpdateAlert as XenServerPatchAlert).Patch != null)
{
AllDownloadedPatches.Add((SelectedUpdateAlert as XenServerPatchAlert).Patch.Uuid, SelectedNewPatch);
}
_patch = null;
PrepareUploadActions();
TryUploading();
}
}
});
}
private void multipleAction_Completed(object sender)
{
var action = sender as AsyncAction;
if (action == null)
return;
action.Completed -= multipleAction_Completed;
canDownload = !(action.Exception is PatchDownloadFailedException);
Program.Invoke(this, () =>
{
labelProgress.Text = GetActionDescription(action);
UpdateButtons();
});
}
private void flickerFreeListBox1_DrawItem(object sender, DrawItemEventArgs e)
{
if(e.Index >= 0 && (flickerFreeListBox1.Items[e.Index] is DownloadAndUnzipXenServerPatchAction))
{
DownloadAndUnzipXenServerPatchAction downAction = (DownloadAndUnzipXenServerPatchAction)flickerFreeListBox1.Items[e.Index];
drawActionText(Properties.Resources._000_Patch_h32bit_16,
downAction.Title,
GetActionDescription(downAction).Ellipsise(EllipsiseValueDownDescription),
GetTextColor(downAction),
e);
return;
}
if (e.Index < 0 || !(flickerFreeListBox1.Items[e.Index] is KeyValuePair<Host, AsyncAction>))
return;
var hostAndAction = (KeyValuePair<Host, AsyncAction>)flickerFreeListBox1.Items[e.Index];
var host = hostAndAction.Key;
var action = hostAndAction.Value;
using (SolidBrush backBrush = new SolidBrush(flickerFreeListBox1.BackColor))
{
e.Graphics.FillRectangle(backBrush, e.Bounds);
}
var poolOrHost = Helpers.GetPool(host.Connection) ?? (IXenObject)host;
string text = action == null ? Messages.UPLOAD_PATCH_ALREADY_UPLOADED : GetActionDescription(action);
drawActionText(Images.GetImage16For(poolOrHost),poolOrHost.Name, text, GetTextColor(action), e);
}
private void drawActionText(Image icon, string actionTitle, string actionDescription, Color textColor,DrawItemEventArgs e)
{
int width = Drawing.MeasureText(actionDescription, flickerFreeListBox1.Font).Width;
e.Graphics.DrawImage(icon, e.Bounds.Left, e.Bounds.Top);
Drawing.DrawText(e.Graphics, actionTitle, flickerFreeListBox1.Font,
new Rectangle(e.Bounds.Left + icon.Width, e.Bounds.Top, e.Bounds.Right - (width + icon.Width), e.Bounds.Height),
flickerFreeListBox1.ForeColor,
TextFormatFlags.Left | TextFormatFlags.EndEllipsis);
Drawing.DrawText(e.Graphics, actionDescription, flickerFreeListBox1.Font,
new Rectangle(e.Bounds.Right - width, e.Bounds.Top, width, e.Bounds.Height),
textColor, flickerFreeListBox1.BackColor);
}
private Color GetTextColor(AsyncAction action)
{
Color textColor;
if (action == null || !action.StartedRunning) // not started yet
textColor = flickerFreeListBox1.ForeColor;
else if (!action.IsCompleted) // in progress
textColor = Color.Blue;
else textColor = action.Succeeded ? Color.Green : Color.Red; // completed
return textColor;
}
private void errorLinkLabel_LinkClicked(object sender, LinkLabelLinkClickedEventArgs e)
{
if (!canDownload)
{
var msgtemplate = SelectedExistingPatch.host_patches.Count > 0 ? Messages.PATCH_DOWNLOAD_FAILED_MORE_INFO : Messages.PATCH_DOWNLOAD_FAILED_MORE_INFO_NOT_APPLIED;
var msg = string.Format(msgtemplate, SelectedExistingPatch.name_label, SelectedExistingPatch.Connection.Name);
new ThreeButtonDialog(
new ThreeButtonDialog.Details(SystemIcons.Error, msg))
.ShowDialog(this);
}
if (diskSpaceRequirements == null)
return;
if (diskSpaceRequirements.CanCleanup)
{
ThreeButtonDialog d = new ThreeButtonDialog(
new ThreeButtonDialog.Details(SystemIcons.Warning, diskSpaceRequirements.GetSpaceRequirementsMessage()),
new ThreeButtonDialog.TBDButton(Messages.OK, DialogResult.OK),
new ThreeButtonDialog.TBDButton(Messages.CANCEL, DialogResult.Cancel));
if (d.ShowDialog(this) == DialogResult.OK)
{
// do the cleanup and retry uploading
CleanupDiskSpaceAction action = new CleanupDiskSpaceAction(diskSpaceRequirements.Host, null, true);
action.Completed += delegate
{
if (action.Succeeded)
{
Program.Invoke(Program.MainWindow, TryUploading);
}
};
action.RunAsync();
}
}
else
{
new ThreeButtonDialog(
new ThreeButtonDialog.Details(SystemIcons.Warning, diskSpaceRequirements.GetSpaceRequirementsMessage()))
.ShowDialog(this);
}
}
}
}