mirror of
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259 lines
11 KiB
C#
259 lines
11 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.Linq;
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using XenAPI;
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using System.IO;
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using System.Xml;
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using XenAdmin.Core;
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namespace XenAdmin.Actions
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{
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public class DownloadUpdatesXmlAction : AsyncAction
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{
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private static readonly log4net.ILog log = log4net.LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);
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private const string XenCenterVersionsNode = "xencenterversions";
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private const string XenServerVersionsNode = "serverversions";
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private const string PatchesNode = "patches";
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private const string ConflictingPatchesNode = "conflictingpatches";
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private const string RequiredPatchesNode = "requiredpatches";
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private const string ConflictingPatchNode = "conflictingpatch";
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private const string RequiredPatchNode = "requiredpatch";
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private const string UpdateXmlUrl = @"http://updates.xensource.com/XenServer/updates.xml";
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public List<XenCenterVersion> XenCenterVersions { get; private set; }
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public List<XenServerVersion> XenServerVersions { get; private set; }
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public List<XenServerPatch> XenServerPatches { get; private set; }
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private readonly bool _checkForXenCenter;
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private readonly bool _checkForServerVersion;
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private readonly bool _checkForPatches;
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public DownloadUpdatesXmlAction(bool checkForXenCenter, bool checkForServerVersion, bool checkForPatches)
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: base(null, "_get_updates", "_get_updates", true)
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{
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XenServerPatches = new List<XenServerPatch>();
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XenServerVersions = new List<XenServerVersion>();
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XenCenterVersions = new List<XenCenterVersion>();
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_checkForXenCenter = checkForXenCenter;
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_checkForServerVersion = checkForServerVersion;
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_checkForPatches = checkForPatches;
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}
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protected override void Run()
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{
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this.Description = Messages.AVAILABLE_UPDATES_SEARCHING;
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XmlDocument xdoc = FetchCheckForUpdatesXml(UpdateXmlUrl);
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GetXenCenterVersions(xdoc);
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GetXenServerPatches(xdoc);
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GetXenServerVersions(xdoc);
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}
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private void GetXenCenterVersions(XmlDocument xdoc)
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{
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if (!_checkForXenCenter)
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return;
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foreach (XmlNode versions in xdoc.GetElementsByTagName(XenCenterVersionsNode))
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{
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foreach (XmlNode version in versions.ChildNodes)
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{
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string version_lang = "";
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string name = "";
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bool is_latest = false;
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string url = "";
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string timestamp = "";
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foreach (XmlAttribute attrib in version.Attributes)
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{
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if (attrib.Name == "value")
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version_lang = attrib.Value;
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else if (attrib.Name == "name")
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name = attrib.Value;
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else if (attrib.Name == "latest")
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is_latest = attrib.Value.ToUpperInvariant() == bool.TrueString.ToUpperInvariant();
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else if (attrib.Name == "url")
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url = attrib.Value;
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else if (attrib.Name == "timestamp")
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timestamp = attrib.Value;
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}
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XenCenterVersions.Add(new XenCenterVersion(version_lang, name, is_latest, url, timestamp));
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}
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}
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}
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private void GetXenServerPatches(XmlDocument xdoc)
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{
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if (!_checkForPatches)
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return;
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foreach (XmlNode versions in xdoc.GetElementsByTagName(PatchesNode))
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{
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foreach (XmlNode version in versions.ChildNodes)
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{
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string uuid = "";
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string name = "";
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string description = "";
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string guidance = "";
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string patchVersion = "";
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string url = "";
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string patchUrl = "";
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string timestamp = "";
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string priority = "";
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string installationSize = "";
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foreach (XmlAttribute attrib in version.Attributes)
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{
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if (attrib.Name == "uuid")
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uuid = attrib.Value;
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else if (attrib.Name == "name-label")
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name = attrib.Value;
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else if (attrib.Name == "name-description")
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description = attrib.Value;
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else if (attrib.Name == "after-apply-guidance")
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guidance = attrib.Value;
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else if (attrib.Name == "version")
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patchVersion = attrib.Value;
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else if (attrib.Name == "url")
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url = attrib.Value;
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else if (attrib.Name == "patch-url")
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patchUrl = attrib.Value;
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else if (attrib.Name == "timestamp")
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timestamp = attrib.Value;
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else if (attrib.Name == "priority")
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priority = attrib.Value;
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else if (attrib.Name == "installation-size")
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installationSize = attrib.Value;
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}
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var conflictingPatches = GetPatchDependencies(version, ConflictingPatchesNode, ConflictingPatchNode);
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var requiredPatches = GetPatchDependencies(version, RequiredPatchesNode, RequiredPatchNode);
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XenServerPatches.Add(new XenServerPatch(uuid, name, description, guidance, patchVersion, url,
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patchUrl, timestamp, priority, installationSize, conflictingPatches, requiredPatches));
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}
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}
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}
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// dependencies patches are listed in the xml as below:
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// <conflictingpatches>
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// <conflictingpatch uuid="00000000-0000-0000-0000-000000000000">
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// </conflictingpatch>
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// </conflictingpatches>
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// <requiredpatches>
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// <requiredgpatch uuid="00000000-0000-0000-0000-000000000000">
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// </requiredgpatch>
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// </requiredpatches>
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private static List<string> GetPatchDependencies(XmlNode patchsNode, string dependenciesNodeName, string dependencyNodeName)
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{
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var dependenciesNode = patchsNode.ChildNodes.Cast<XmlNode>().FirstOrDefault(childNode => childNode.Name == dependenciesNodeName);
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if (dependenciesNode == null)
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return null;
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var dependencies = new List<string>();
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dependencies.AddRange(from XmlNode node in dependenciesNode.ChildNodes
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from XmlAttribute attrib in node.Attributes
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where node.Name == dependencyNodeName && node.Attributes != null && attrib.Name == "uuid"
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select attrib.Value);
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return dependencies;
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}
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private void GetXenServerVersions(XmlDocument xdoc)
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{
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if (!_checkForServerVersion)
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return;
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foreach (XmlNode versions in xdoc.GetElementsByTagName(XenServerVersionsNode))
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{
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foreach (XmlNode version in versions.ChildNodes)
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{
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string version_oem = "";
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string name = "";
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bool is_latest = false;
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string url = "";
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string timestamp = "";
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string buildNumber = "";
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foreach (XmlAttribute attrib in version.Attributes)
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{
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if (attrib.Name == "value")
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version_oem = attrib.Value;
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else if (attrib.Name == "name")
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name = attrib.Value;
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else if (attrib.Name == "latest")
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is_latest = attrib.Value.ToUpperInvariant() == bool.TrueString.ToUpperInvariant();
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else if (attrib.Name == "url")
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url = attrib.Value;
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else if (attrib.Name == "timestamp")
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timestamp = attrib.Value;
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else if (attrib.Name == "build-number")
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buildNumber = attrib.Value;
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}
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List<XenServerPatch> patches = new List<XenServerPatch>();
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foreach (XmlNode childnode in version.ChildNodes)
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{
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if (childnode.Name != "patch")
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continue;
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XenServerPatch patch = XenServerPatches.Find(item => item.Uuid == childnode.Attributes["uuid"].Value);
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if (patch == null)
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continue;
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patches.Add(patch);
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}
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XenServerVersions.Add(new XenServerVersion(version_oem, name, is_latest, url, patches, timestamp,
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buildNumber));
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}
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}
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}
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protected virtual XmlDocument FetchCheckForUpdatesXml(string location)
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{
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XmlDocument xdoc;
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using (Stream xmlstream = HTTPHelper.GET(new Uri(location), Connection, false, true))
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{
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xdoc = Helpers.LoadXmlDocument(xmlstream);
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}
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return xdoc;
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}
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}
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}
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