void CollectEventLogs(string logFileCollectionPath = "")
{
var els = new EventLogSession();
// this query gets the last 7 days of events
string q = "<QueryList>" +
"<Query Id=\"0\" Path=\"Application\">" +
"<Select Path=\"Application\">*[System[TimeCreated[timediff(@SystemTime) <= 604800000]]]</Select>" +
"</Query>" +
"</QueryList>";
els.ExportLogAndMessages("Application", PathType.LogName, q, Path.Combine(logFileCollectionPath + "\\Application.evtx"), false, CultureInfo.CurrentCulture);
// this query gets the last 7 days of events
q = "<QueryList>" +
"<Query Id=\"0\" Path=\"System\">" +
"<Select Path=\"System\">*[System[TimeCreated[timediff(@SystemTime) <= 604800000]]]</Select>" +
"</Query>" +
"</QueryList>";
els.ExportLogAndMessages("System", PathType.LogName, q, Path.Combine(logFileCollectionPath + "\\System.evtx"), false, CultureInfo.CurrentCulture);
}
public static void Main(string[] args)
{
int exitCode = 0;
String logPath = "Application";
String query = "*/System[Level <= 3 and Level >= 1]"; // XPath selecting all events of level warning or higher.
String targetFile = Environment.ExpandEnvironmentVariables("%USERPROFILE%\\export.evtx");
String targetFileWithMessages = Environment.ExpandEnvironmentVariables("%USERPROFILE%\\exportWithMessages.evtx");
try
{
//
// Parse the command line.
//
if (args.Length > 0)
{
if (args[0] == "/?" || args[0] == "-?")
{
Console.WriteLine("Usage: LogManagement [<logname> [<exportFile> [<exportFileWithMessages>]]]\n" +
"<logname> is the name of an existing event log.\n" +
"When <logname> is not specified, Application is assumed.\n" +
"EXAMPLE: LogManagement Microsoft-Windows-TaskScheduler/Operational archive.evtx archiveWithMessages.evtx\n");
Environment.Exit(0);
}
else
{
logPath = args[0];
if (args.Length > 1)
{
targetFile = args[1];
}
if (args.Length > 2)
{
targetFileWithMessages = args[2];
}
}
}
//
// Get log information.
//
EventLogSession session = new EventLogSession();
EventLogInformation logInfo = session.GetLogInformation(logPath, PathType.LogName);
Console.WriteLine("The {0} log contains {1} events.", logPath, logInfo.RecordCount );
//
// Export selected events from a log to a file.
//
if (File.Exists(targetFile))
{
Console.WriteLine("Could not export log {0}: file {1} already exists", logPath, targetFile);
Environment.Exit(1);
}
else
{
session.ExportLog(logPath, PathType.LogName, query, targetFile, true);
Console.WriteLine("Selected events from the {0} log have been exported to file {1}.", logPath, targetFile);
}
//
// Capture localized event information so that the exported log can be viewed on
// systems that might not have some of the event providers installed.
//
if (File.Exists(targetFileWithMessages))
{
Console.WriteLine("Could not archive log {0}: file {1} already exists", logPath, targetFileWithMessages);
Environment.Exit(1);
}
else
{
session.ExportLogAndMessages(logPath, PathType.LogName, query, targetFileWithMessages, true, CultureInfo.CurrentCulture);
Console.WriteLine("The export file {0} has been localized into {1} for archiving.", targetFileWithMessages, CultureInfo.CurrentCulture.DisplayName);
}
//
// Clear the log.
//
session.ClearLog(logPath);
Console.WriteLine("The {0} log has been cleared.", logPath );
}
catch (UnauthorizedAccessException e)
{
Console.WriteLine("You do not have the correct permissions. " +
"Try re-running the sample with administrator privileges.\n" + e.ToString());
}
catch(Exception e)
{
Console.WriteLine(e.ToString());
exitCode = 1;
}
Environment.Exit(exitCode);
}