private void readCentralConfiguration()
{
mRetryCount++;
string xmlData = null;
Logger.Debug("Reading central configuration.");
try
{
xmlData = WebHttpClient.GetResponse(LocalConfig.ConfigurationFileUrl);
}
catch (Exception ex)
{
Logger.Error("Failed to read central configuration " + LocalConfig.ConfigurationFileUrl, ex);
WindowsTaskHandler.WriteEventLog(Constants.CEventLogId, EventLogEntryType.Warning, Constants.CEventLogFailedToRetrieveCentralConfiguration);
}
if (!string.IsNullOrEmpty(xmlData))
{
mRetryCount = 0;
var serializer = new Serialization <CustomerConfigurationsFile>();
mCentralConfiguration = serializer.GetObjectFromXml(xmlData).FirstOrDefault(cc => cc.CustomerName.Equals(mCustomerName, StringComparison.InvariantCultureIgnoreCase));
}
else
{
if (mRetryCount == LocalConfig.ReadConfigFileRetryCount)
{
mCentralConfiguration = null;
mRetryCount = 0;
}
if (mCentralConfiguration == null)
{
throw new Exception("Could not read central configuration file.");
}
}
}
private void reportUpdateInstallationStatus(UpdateInstallationLog updateLog, bool isCurrent)
{
Logger.Debug("Update log:");
var sortedUpdateLog = UpdateInstallationLog.Create(updateLog.OrderBy(log => log.UpdateInstallationStatus));
foreach (var updateInstallationLogEntry in sortedUpdateLog)
{
log(updateInstallationLogEntry);
Reporter.ReportStatus(updateInstallationLogEntry);
}
bool success = commitWithRetry();
if (!success)
{
Logger.Debug("Writing event log: " + Constants.CEventLogFailedToWriteToDatabase);
WindowsTaskHandler.WriteEventLog(Constants.CEventLogId, EventLogEntryType.Warning, Constants.CEventLogFailedToWriteToDatabase);
}
if (isCurrent)
{
if (!success)
{
saveReport(sortedUpdateLog);
}
}
else
{
if (success)
{
deleteReport();
}
}
Logger.Debug("Finished reporting installation status.");
}
private void runUpdateProcedure()
{
lock (mSyncObject)
{
try
{
Logger.Debug("START runUpdateProcedure");
mInactivated = false;
mStopServiceEvent.Reset();
logSystemInfo();
readLocalConfiguration();
readCentralConfiguration();
getExcludedUpdates();
if (mCentralConfiguration == null)
{
Logger.DebugFormat("Going idle - Customer name '{0}' was not found in the CustomerConfigurations section.", LocalConfig.CustomerName);
inactivate();
return;
}
if (isServerInExclusionList())
{
Logger.Debug("Going idle - Server is present in exclusion list.");
inactivate();
return;
}
if (!isWithinMaintenanceTimeFrame())
{
Logger.Debug("Going idle - Not within maintenance timeframe.");
inactivate();
return;
}
trySendSavedReports();
Logger.Debug("Fetching available updates.");
IUpdateCollection updates = WindowsUpdateClient.GetAvailableUpdates();
if (updates == null || updates.Count == 0)
{
Logger.Debug("Going idle - No updates retrieved from WUA.");
inactivate();
return;
}
var updatesToInstall = new UpdateCollectionClass();
var excludedUpdates = new UpdateCollectionClass();
for (int i = 0; i < updates.Count; i++)
{
IUpdate update = updates[i];
if (!isUpdateExcluded(update))
{
updatesToInstall.Add(update);
}
else
{
excludedUpdates.Add(update);
}
}
if (updatesToInstall.Count == 0)
{
if (excludedUpdates.Count > 0)
{
var entries = UpdateInstallationLog.CreateExcludedLogEntries(excludedUpdates);
var log = UpdateInstallationLog.Create(entries);
reportUpdateInstallationStatus(log, true);
}
Logger.Debug("Going idle - No new updates found.");
inactivate();
return;
}
Logger.Debug("Writing event log and monitoring API call.");
WindowsTaskHandler.WriteEventLog(Constants.CEventLogId, Constants.CEventLogDescription);
WindowsTaskHandler.CallMonitoringApi();
Logger.Debug("Installing updates.");
Result result = WindowsUpdateClient.InstallUpdates(updatesToInstall);
// add excluded updates to result
var excludedEntries = UpdateInstallationLog.CreateExcludedLogEntries(excludedUpdates);
result.UpdateInstallationLog.AddRange(excludedEntries);
reportStatus(result);
if (result.InstallationResult.RebootRequired)
{
Logger.Debug("Rebooting system.");
WindowsTaskHandler.RebootSystem();
}
}
catch (Exception ex)
{
Logger.Error(ex);
}
finally
{
if (!mInactivated)
{
inactivate();
}
Logger.Debug("FINISH runUpdateProcedure");
mStopServiceEvent.Set();
}
}
}
