private XenServerPatchAlert GetAlertFromIsoFile(string fileName, out bool hasUpdateXml, out bool isUpgradeIso)
{
hasUpdateXml = false;
isUpgradeIso = false;
if (!fileName.EndsWith(InvisibleMessages.ISO_UPDATE))
{
return(null);
}
var xmlDoc = new XmlDocument();
try
{
using (var isoStream = File.OpenRead(fileName))
{
var cd = new CDReader(isoStream, true);
if (cd.Exists("Update.xml"))
{
using (var fileStream = cd.OpenFile("Update.xml", FileMode.Open))
{
xmlDoc.Load(fileStream);
hasUpdateXml = true;
}
}
if (cd.Exists(@"repodata\repomd.xml") && cd.FileExists(".treeinfo"))
{
using (var fileStream = cd.OpenFile(".treeinfo", FileMode.Open))
{
var iniDoc = new IniDocument(fileStream);
var entry = iniDoc.FindEntry("platform", "name");
if (entry != null && entry.Value == "XCP")
{
isUpgradeIso = true;
return(null);
}
}
}
}
}
catch (Exception exception)
{
log.Error("Exception while reading the update data from the iso file:", exception);
}
var elements = xmlDoc.GetElementsByTagName("update");
var update = elements.Count > 0 ? elements[0] : null;
if (update == null || update.Attributes == null)
{
return(null);
}
var uuid = update.Attributes["uuid"];
return(uuid != null?Updates.FindPatchAlertByUuid(uuid.Value) : null);
}