xenadmin/XenAdmin/Core/Updates.cs
Ji Jiang 1e335de316 CP-24210: Populate "By Host" view correctly
1) Show required updates in case of versions without minimal patches
2) Hide version text in installed updates when version is Ely or above

Signed-off-by: Ji Jiang <ji.jiang@citrix.com>
2017-09-18 15:32:48 +01:00

821 lines
33 KiB
C#

/* 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.Linq;
using XenAdmin.Actions;
using XenAPI;
using XenAdmin.Alerts;
using XenAdmin.Network;
using System.Diagnostics;
using System.Windows.Forms;
using XenAdmin.Dialogs;
using System.Text;
namespace XenAdmin.Core
{
public class Updates
{
private static readonly log4net.ILog log = log4net.LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);
public static event Action<bool, string> CheckForUpdatesCompleted;
public static event Action CheckForUpdatesStarted;
public static event Action RestoreDismissedUpdatesStarted;
private static readonly object downloadedUpdatesLock = new object();
private static List<XenServerVersion> XenServerVersionsForAutoCheck = new List<XenServerVersion>();
private static List<XenServerPatch> XenServerPatches = new List<XenServerPatch>();
private static List<XenCenterVersion> XenCenterVersions = new List<XenCenterVersion>();
public static List<XenServerVersion> XenServerVersions = new List<XenServerVersion>();
private static readonly object updateAlertsLock = new object();
private static readonly ChangeableList<Alert> updateAlerts = new ChangeableList<Alert>();
public static IEnumerable<Alert> UpdateAlerts
{
get { return updateAlerts; }
}
public static int UpdateAlertsCount
{
get { return updateAlerts.Count; }
}
private static void AddUpate(Alert update)
{
try
{
lock (updateAlertsLock)
{
if(!updateAlerts.Contains(update))
{
updateAlerts.Add(update);
}
}
}
catch (Exception e)
{
log.Error("Failed to add update", e);
}
}
public static void RemoveUpdate(Alert update)
{
try
{
lock (updateAlertsLock)
{
if(updateAlerts.Contains(update))
{
updateAlerts.Remove(update);
}
}
}
catch (Exception e)
{
log.Error("Failed to remove update", e);
}
}
/// <summary>
/// Dismisses the updates in the given list i.e. they are added in the
/// other_config list of each pool and removed from the Updates.UpdateAlerts list.
/// </summary>
/// <param name="toBeDismissed"></param>
public static void DismissUpdates(List<Alert> toBeDismissed)
{
if (toBeDismissed.Count == 0)
return;
foreach(IXenConnection connection in ConnectionsManager.XenConnectionsCopy)
{
if (!Alert.AllowedToDismiss(connection))
continue;
XenAPI.Pool pool = Helpers.GetPoolOfOne(connection);
if (pool == null)
continue;
Dictionary<string, string> other_config = pool.other_config;
foreach (Alert alert in toBeDismissed)
{
if (alert is XenServerPatchAlert)
{
if (other_config.ContainsKey(IgnorePatchAction.IgnorePatchKey))
{
List<string> current = new List<string>(other_config[IgnorePatchAction.IgnorePatchKey].Split(','));
if (current.Contains(((XenServerPatchAlert)alert).Patch.Uuid, StringComparer.OrdinalIgnoreCase))
continue;
current.Add(((XenServerPatchAlert)alert).Patch.Uuid);
other_config[IgnorePatchAction.IgnorePatchKey] = string.Join(",", current.ToArray());
}
else
{
other_config.Add(IgnorePatchAction.IgnorePatchKey, ((XenServerPatchAlert)alert).Patch.Uuid);
}
}
if (alert is XenServerVersionAlert)
{
if (other_config.ContainsKey(IgnoreServerAction.LAST_SEEN_SERVER_VERSION_KEY))
{
List<string> current = new List<string>(other_config[IgnoreServerAction.LAST_SEEN_SERVER_VERSION_KEY].Split(','));
if (current.Contains(((XenServerVersionAlert)alert).Version.VersionAndOEM))
continue;
current.Add(((XenServerVersionAlert)alert).Version.VersionAndOEM);
other_config[IgnoreServerAction.LAST_SEEN_SERVER_VERSION_KEY] = string.Join(",", current.ToArray());
}
else
{
other_config.Add(IgnoreServerAction.LAST_SEEN_SERVER_VERSION_KEY, ((XenServerVersionAlert)alert).Version.VersionAndOEM);
}
}
Updates.RemoveUpdate(alert);
}
XenAPI.Pool.set_other_config(connection.Session, pool.opaque_ref, other_config);
}
}
private static Alert FindUpdate(Alert alert)
{
lock (updateAlertsLock)
return FindUpdate(a => a.Equals(alert));
}
private static Alert FindUpdate(Predicate<Alert> predicate)
{
lock (updateAlertsLock)
return updateAlerts.Find(predicate);
}
/// <summary>
/// If AutomaticCheck is enabled it checks for updates regardless the
/// value of the parameter force. If AutomaticCheck is disabled it
/// checks for all update types if force is true; forceRefresh causes
/// the check for update action to run and refresh the Updates page
/// </summary>
public static void CheckForUpdates(bool force, bool forceRefresh = false)
{
if (Helpers.CommonCriteriaCertificationRelease)
return;
if (Properties.Settings.Default.AllowXenCenterUpdates ||
Properties.Settings.Default.AllowXenServerUpdates ||
Properties.Settings.Default.AllowPatchesUpdates || force || forceRefresh)
{
var action = CreateDownloadUpdatesXmlAction(
Properties.Settings.Default.AllowXenCenterUpdates || force,
Properties.Settings.Default.AllowXenServerUpdates || force,
Properties.Settings.Default.AllowPatchesUpdates || force,
Updates.CheckForUpdatesUrl);
action.Completed += actionCompleted;
if (CheckForUpdatesStarted != null)
CheckForUpdatesStarted();
action.RunAsync();
}
}
private static DownloadUpdatesXmlAction CreateDownloadUpdatesXmlAction(bool checkForXenCenter, bool checkForServerVersion, bool checkForPatches, string checkForUpdatesUrl = null)
{
string userAgent = string.Format("{0}/{1}.{2} ({3}-bit)", Branding.BRAND_CONSOLE, Branding.XENCENTER_VERSION, Program.Version.Revision.ToString(), IntPtr.Size * 8);
string userAgentId = GetUniqueIdHash();
return new DownloadUpdatesXmlAction(checkForXenCenter, checkForServerVersion, checkForPatches, userAgent, userAgentId, checkForUpdatesUrl);
}
internal static string GetUniqueIdHash()
{
string uniqueIdHash = "nil";
try
{
var managementObj = new System.Management.ManagementObject("Win32_OperatingSystem=@");
string serialNumber = (string)managementObj["SerialNumber"];
if (!string.IsNullOrWhiteSpace(serialNumber))
{
var serialBytes = Encoding.ASCII.GetBytes(serialNumber);
using (var md = new System.Security.Cryptography.MD5CryptoServiceProvider()) // MD5 to keep it short enough as this hash is not used for security in any way
{
var hash = md.ComputeHash(serialBytes);
uniqueIdHash = BitConverter.ToString(hash).Replace("-", "").ToLowerInvariant();
}
}
}
catch (Exception ex)
{
log.Error(ex);
}
return uniqueIdHash;
}
/// <summary>
/// It does exactly what CheckForUpdates(true) does, but this is sync and shows an ActionProgressDialog while running
/// </summary>
/// <returns>true if the action has succeeded</returns>
public static bool CheckForUpdatesSync(Control parentForProgressDialog)
{
if (Helpers.CommonCriteriaCertificationRelease)
return false;
var action = CreateDownloadUpdatesXmlAction(true, true, true, Updates.CheckForUpdatesUrl);
action.Completed += actionCompleted;
if (CheckForUpdatesStarted != null)
CheckForUpdatesStarted();
using (var dialog = new ActionProgressDialog(action, ProgressBarStyle.Marquee))
dialog.ShowDialog(parentForProgressDialog);
return action.Succeeded;
}
public static string CheckForUpdatesUrl
{
get
{
return Registry.CustomUpdatesXmlLocation ?? Branding.CheckForUpdatesUrl;
}
}
private static void actionCompleted(ActionBase sender)
{
Program.AssertOffEventThread();
DownloadUpdatesXmlAction action = sender as DownloadUpdatesXmlAction;
if (action == null)
return;
bool succeeded = action.Succeeded;
string errorMessage = string.Empty;
lock (updateAlertsLock)
updateAlerts.Clear();
if (succeeded)
{
lock (downloadedUpdatesLock)
{
XenCenterVersions = action.XenCenterVersions;
XenServerVersionsForAutoCheck = action.XenServerVersionsForAutoCheck;
XenServerVersions = action.XenServerVersions;
XenServerPatches = action.XenServerPatches;
}
var xenCenterAlert = NewXenCenterUpdateAlert(XenCenterVersions, Program.Version);
if (xenCenterAlert != null && !xenCenterAlert.IsDismissed())
updateAlerts.Add(xenCenterAlert);
var xenServerUpdateAlert = NewXenServerVersionAlert(XenServerVersionsForAutoCheck);
if (xenServerUpdateAlert != null && !xenServerUpdateAlert.CanIgnore)
updateAlerts.Add(xenServerUpdateAlert);
var xenServerPatchAlerts = NewXenServerPatchAlerts(XenServerVersions, XenServerPatches);
if (xenServerPatchAlerts != null)
updateAlerts.AddRange(xenServerPatchAlerts.Where(alert => !alert.CanIgnore));
}
else
{
if (action.Exception != null)
{
if (action.Exception is System.Net.Sockets.SocketException)
{
errorMessage = Messages.AVAILABLE_UPDATES_NETWORK_ERROR;
}
else
{
// Clean up and remove excess newlines, carriage returns, trailing nonsense
string errorText = action.Exception.Message.Trim();
errorText = System.Text.RegularExpressions.Regex.Replace(errorText, @"\r\n+", "");
errorMessage = string.Format(Messages.AVAILABLE_UPDATES_ERROR, errorText);
}
}
if (string.IsNullOrEmpty(errorMessage))
errorMessage = Messages.AVAILABLE_UPDATES_INTERNAL_ERROR;
}
if (CheckForUpdatesCompleted != null)
CheckForUpdatesCompleted(succeeded, errorMessage);
}
public static void RegisterCollectionChanged(CollectionChangeEventHandler handler)
{
updateAlerts.CollectionChanged += handler;
}
public static void DeregisterCollectionChanged(CollectionChangeEventHandler handler)
{
updateAlerts.CollectionChanged -= handler;
}
public static XenCenterUpdateAlert NewXenCenterUpdateAlert(List<XenCenterVersion> xenCenterVersions, Version currentProgramVersion)
{
if (Helpers.CommonCriteriaCertificationRelease)
return null;
XenCenterVersion toUse = null;
if (xenCenterVersions.Count != 0 && currentProgramVersion != new Version(0, 0, 0, 0))
{
var latest = from v in xenCenterVersions where v.IsLatest select v;
toUse = latest.FirstOrDefault(xcv => xcv.Lang == Program.CurrentLanguage) ??
latest.FirstOrDefault(xcv => string.IsNullOrEmpty(xcv.Lang));
}
if (toUse == null)
return null;
if (toUse.Version > currentProgramVersion ||
(toUse.Version == currentProgramVersion && toUse.Lang == Program.CurrentLanguage &&
!PropertyManager.IsCultureLoaded(Program.CurrentCulture)))
{
return new XenCenterUpdateAlert(toUse);
}
log.Info(string.Format("Not alerting XenCenter update - lastest = {0}, detected = {1}",
toUse.VersionAndLang, Program.VersionAndLanguage));
return null;
}
public static List<XenServerPatchAlert> NewXenServerPatchAlerts(List<XenServerVersion> xenServerVersions,
List<XenServerPatch> xenServerPatches)
{
if (Helpers.CommonCriteriaCertificationRelease)
return null;
var alerts = new List<XenServerPatchAlert>();
foreach (IXenConnection xenConnection in ConnectionsManager.XenConnectionsCopy)
{
Host master = Helpers.GetMaster(xenConnection);
Pool pool = Helpers.GetPoolOfOne(xenConnection);
List<Host> hosts = xenConnection.Cache.Hosts.ToList();
if (master == null || pool == null)
continue;
var serverVersions = xenServerVersions.FindAll(version =>
{
if (version.BuildNumber != string.Empty)
return (master.BuildNumberRaw() == version.BuildNumber);
return Helpers.HostProductVersionWithOEM(master) == version.VersionAndOEM
|| (version.Oem != null && Helpers.OEMName(master).StartsWith(version.Oem)
&& Helpers.HostProductVersion(master) == version.Version.ToString());
});
if (serverVersions.Count == 0)
continue;
foreach (XenServerVersion xenServerVersion in serverVersions)
{
XenServerVersion version = xenServerVersion;
List<XenServerPatch> patches = xenServerPatches.FindAll(patch => version.Patches.Contains(patch));
if (patches.Count == 0)
continue;
foreach (XenServerPatch xenServerPatch in patches)
{
var alert = new XenServerPatchAlert(xenServerPatch);
var existingAlert = alerts.Find(al => al.Equals(alert));
if (existingAlert != null)
alert = existingAlert;
else
alerts.Add(alert);
if (!xenConnection.IsConnected)
continue;
XenServerPatch serverPatch = xenServerPatch;
// A patch can be installed on a host if:
// 1. it is not already installed and
// 2. the host has all the required patches installed and
// 3. the host doesn't have any of the conflicting patches installed
var noPatchHosts = hosts.Where(host =>
{
bool elyOrGreater = Helpers.ElyOrGreater(host);
var appliedUpdates = host.AppliedUpdates();
var appliedPatches = host.AppliedPatches();
// 1. patch is not already installed
if (elyOrGreater && appliedUpdates.Any(update => string.Equals(update.uuid, serverPatch.Uuid, StringComparison.OrdinalIgnoreCase)))
return false;
else if (!elyOrGreater && appliedPatches.Any(patch => string.Equals(patch.uuid, serverPatch.Uuid, StringComparison.OrdinalIgnoreCase)))
return false;
// 2. the host has all the required patches installed
if (serverPatch.RequiredPatches != null && serverPatch.RequiredPatches.Count > 0 &&
!serverPatch.RequiredPatches
.All(requiredPatchUuid =>
elyOrGreater && appliedUpdates.Any(update => string.Equals(update.uuid, requiredPatchUuid, StringComparison.OrdinalIgnoreCase))
|| !elyOrGreater && appliedPatches.Any(patch => string.Equals(patch.uuid, requiredPatchUuid, StringComparison.OrdinalIgnoreCase))
)
)
return false;
// 3. the host doesn't have any of the conflicting patches installed
if (serverPatch.ConflictingPatches != null && serverPatch.ConflictingPatches.Count > 0 &&
serverPatch.ConflictingPatches
.Any(conflictingPatchUuid =>
elyOrGreater && appliedUpdates.Any(update => string.Equals(update.uuid, conflictingPatchUuid, StringComparison.OrdinalIgnoreCase))
|| !elyOrGreater && appliedPatches.Any(patch => string.Equals(patch.uuid, conflictingPatchUuid, StringComparison.OrdinalIgnoreCase))
)
)
return false;
return true;
});
if (noPatchHosts.Count() == hosts.Count)
alert.IncludeConnection(xenConnection);
else
alert.IncludeHosts(noPatchHosts);
}
}
}
return alerts;
}
/// <summary>
/// This method returns the minimal set of patches for a host if this class already has information about them. Otherwise it returns empty list.
/// Calling this function will not initiate a download or update.
/// </summary>
/// <param name="host"></param>
/// <returns></returns>
public static List<XenServerPatch> RecommendedPatchesForHost(Host host)
{
var recommendedPatches = new List<XenServerPatch>();
if (XenServerVersions == null)
return null;
var serverVersions = XenServerVersions.FindAll(version =>
{
if (version.BuildNumber != string.Empty)
return (host.BuildNumberRaw() == version.BuildNumber);
return Helpers.HostProductVersionWithOEM(host) == version.VersionAndOEM
|| (version.Oem != null && Helpers.OEMName(host).StartsWith(version.Oem)
&& Helpers.HostProductVersion(host) == version.Version.ToString());
});
if (serverVersions.Count != 0)
{
var minimumPatches = serverVersions[0].MinimalPatches;
if (minimumPatches == null) //unknown
return null;
bool elyOrGreater = Helpers.ElyOrGreater(host);
var appliedPatches = host.AppliedPatches();
var appliedUpdates = host.AppliedUpdates();
if (elyOrGreater)
{
recommendedPatches = minimumPatches.FindAll(p => !appliedUpdates.Any(au => string.Equals(au.uuid, p.Uuid, StringComparison.OrdinalIgnoreCase)));
}
else
{
recommendedPatches = minimumPatches.FindAll(p => !appliedPatches.Any(ap => string.Equals(ap.uuid, p.Uuid, StringComparison.OrdinalIgnoreCase)));
}
}
return recommendedPatches;
}
public static UpgradeSequence GetUpgradeSequence(IXenConnection conn)
{
if (XenServerVersions == null)
return null;
Host master = Helpers.GetMaster(conn);
if (master == null)
return null;
var version = GetCommonServerVersionOfHostsInAConnection(conn, XenServerVersions);
if (version != null)
{
if (version.MinimalPatches == null)
return null;
var uSeq = new UpgradeSequence();
uSeq.MinimalPatches = version.MinimalPatches;
List<Host> hosts = conn.Cache.Hosts.ToList();
foreach (Host h in hosts)
{
uSeq[h] = GetUpgradeSequenceForHost(h, uSeq.MinimalPatches);
}
return uSeq;
}
else
{
return null;
}
}
/// <summary>
/// Returns a XenServerVersion if all hosts of the pool have the same version
/// Returns null if it is unknown or they don't match
/// </summary>
/// <returns></returns>
private static XenServerVersion GetCommonServerVersionOfHostsInAConnection(IXenConnection connection, List<XenServerVersion> xsVersions)
{
XenServerVersion commonXenServerVersion = null;
if (connection == null)
return null;
List<Host> hosts = connection.Cache.Hosts.ToList();
foreach (Host host in hosts)
{
var hostVersions = xsVersions.FindAll(version =>
{
if (version.BuildNumber != string.Empty)
return (host.BuildNumberRaw() == version.BuildNumber);
return Helpers.HostProductVersionWithOEM(host) == version.VersionAndOEM
|| (version.Oem != null && Helpers.OEMName(host).StartsWith(version.Oem)
&& Helpers.HostProductVersion(host) == version.Version.ToString());
});
var foundVersion = hostVersions.FirstOrDefault();
if (foundVersion == null)
{
return null;
}
else
{
if (commonXenServerVersion == null)
{
commonXenServerVersion = foundVersion;
}
else
{
if (commonXenServerVersion != foundVersion)
return null;
}
}
}
return commonXenServerVersion;
}
private static List<XenServerPatch> GetUpgradeSequenceForHost(Host h, List<XenServerPatch> latestPatches)
{
var sequence = new List<XenServerPatch>();
var appliedUpdateUuids = new List<string>();
bool elyOrGreater = Helpers.ElyOrGreater(h);
if (elyOrGreater)
{
appliedUpdateUuids = h.AppliedUpdates().Select(u => u.uuid).ToList();
}
else
{
appliedUpdateUuids = h.AppliedPatches().Select(p => p.uuid).ToList();
}
var neededPatches = new List<XenServerPatch>(latestPatches);
//Iterate through latestPatches once; in each iteration, move the first item from L0 that has its dependencies met to the end of the Update Schedule (US)
for (int ii = 0; ii < neededPatches.Count; ii++)
{
var p = neededPatches[ii];
//checking requirements
if (//not applied yet
!appliedUpdateUuids.Any(apu => string.Equals(apu, p.Uuid, StringComparison.OrdinalIgnoreCase))
// and either no requirements or they are meet
&& (p.RequiredPatches == null
|| p.RequiredPatches.Count == 0
// all requirements met?
|| p.RequiredPatches.All(
rp =>
//sequence already has the required-patch
(sequence.Count != 0 && sequence.Any(useqp => string.Equals(useqp.Uuid, rp, StringComparison.OrdinalIgnoreCase)))
//the required-patch has already been applied
|| (appliedUpdateUuids.Count != 0 && appliedUpdateUuids.Any(apu => string.Equals(apu, rp, StringComparison.OrdinalIgnoreCase)))
)
))
{
// this patch can be added to the upgrade sequence now
sequence.Add(p);
// by now the patch has either been added to the upgrade sequence or something already contains it among the installed patches
neededPatches.RemoveAt(ii);
//resetting position - the loop will start on 0. item
ii = -1;
}
}
return sequence;
}
public class UpgradeSequence : Dictionary<Host, List<XenServerPatch>>
{
private IEnumerable<XenServerPatch> AllPatches
{
get
{
foreach (var patches in this.Values)
foreach(var patch in patches)
yield return patch;
}
}
public List<XenServerPatch> UniquePatches
{
get
{
var uniquePatches = new List<XenServerPatch>();
foreach (var mp in MinimalPatches)
{
if (AllPatches.Any(p => p.Uuid == mp.Uuid))
{
uniquePatches.Add(mp);
}
}
return uniquePatches;
}
}
public bool AllHostsUpToDate
{
get
{
if (this.Count == 0)
return false;
foreach (var host in this.Keys)
{
if (this[host].Count > 0)
return false;
}
return true;
}
}
public List<XenServerPatch> MinimalPatches
{
set;
get;
}
}
public static XenServerVersionAlert NewXenServerVersionAlert(List<XenServerVersion> xenServerVersions)
{
if (Helpers.CommonCriteriaCertificationRelease)
return null;
var latestVersion = xenServerVersions.FindAll(item => item.Latest).OrderByDescending(v => v.Version).FirstOrDefault();
if (latestVersion == null)
return null;
var alert = new XenServerVersionAlert(latestVersion);
foreach (IXenConnection xc in ConnectionsManager.XenConnectionsCopy)
{
if (!xc.IsConnected)
continue;
Host master = Helpers.GetMaster(xc);
Pool pool = Helpers.GetPoolOfOne(xc);
List<Host> hosts = xc.Cache.Hosts.ToList();
if (master == null || pool == null)
continue;
var outOfDateHosts = hosts.Where(host => new Version(Helpers.HostProductVersion(host)) < latestVersion.Version);
if (outOfDateHosts.Count() == hosts.Count)
alert.IncludeConnection(xc);
else
alert.IncludeHosts(outOfDateHosts);
}
return alert;
}
public static void CheckServerVersion()
{
var alert = NewXenServerVersionAlert(XenServerVersionsForAutoCheck);
if (alert == null)
return;
CheckUpdate(alert);
}
public static void CheckServerPatches()
{
var alerts = NewXenServerPatchAlerts(XenServerVersions, XenServerPatches);
if (alerts == null)
return;
foreach (var alert in alerts)
CheckUpdate(alert);
}
private static void CheckUpdate(XenServerUpdateAlert alert)
{
var existingAlert = FindUpdate(alert);
if (existingAlert != null && alert.CanIgnore)
RemoveUpdate(existingAlert);
else if (existingAlert != null)
((XenServerUpdateAlert)existingAlert).CopyConnectionsAndHosts(alert);
else if (!alert.CanIgnore)
AddUpate(alert);
}
public static void RestoreDismissedUpdates()
{
var actions = new List<AsyncAction>();
foreach (IXenConnection connection in ConnectionsManager.XenConnectionsCopy)
actions.Add(new RestoreDismissedUpdatesAction(connection));
var action = new ParallelAction(Messages.RESTORE_DISMISSED_UPDATES, Messages.RESTORING, Messages.COMPLETED, actions, true, false);
action.Completed += action_Completed;
if (RestoreDismissedUpdatesStarted != null)
RestoreDismissedUpdatesStarted();
action.RunAsync();
}
private static void action_Completed(ActionBase action)
{
Program.Invoke(Program.MainWindow, () =>
{
Properties.Settings.Default.LatestXenCenterSeen = "";
Settings.TrySaveSettings();
CheckForUpdates(true);
});
}
}
}