/// <summary>
/// Performs the update if needed.
/// </summary>
/// <param name="appPaths">The app paths.</param>
/// <param name="logger">The logger.</param>
/// <returns><c>true</c> if XXXX, <c>false</c> otherwise</returns>
private static bool PerformUpdateIfNeeded(ServerApplicationPaths appPaths, ILogger logger)
{
// Not supported
if (IsRunningAsService)
{
return(false);
}
// Look for the existence of an update archive
var updateArchive = Path.Combine(appPaths.TempUpdatePath, "MBServer" + ".zip");
if (File.Exists(updateArchive))
{
logger.Info("An update is available from {0}", updateArchive);
// Update is there - execute update
try
{
var serviceName = IsRunningAsService ? BackgroundService.GetExistingServiceName() : string.Empty;
new ApplicationUpdater().UpdateApplication(appPaths, updateArchive, logger, serviceName);
// And just let the app exit so it can update
return(true);
}
catch (Exception e)
{
logger.ErrorException("Error starting updater.", e);
MessageBox.Show(string.Format("Error attempting to update application.\n\n{0}\n\n{1}", e.GetType().Name, e.Message));
}
}
return(false);
}
private static bool IsAlreadyRunningAsService(string applicationPath)
{
var serviceName = BackgroundService.GetExistingServiceName();
WqlObjectQuery wqlObjectQuery = new WqlObjectQuery(string.Format("SELECT * FROM Win32_Service WHERE State = 'Running' AND Name = '{0}'", serviceName));
ManagementObjectSearcher managementObjectSearcher = new ManagementObjectSearcher(wqlObjectQuery);
ManagementObjectCollection managementObjectCollection = managementObjectSearcher.Get();
foreach (ManagementObject managementObject in managementObjectCollection)
{
var obj = managementObject.GetPropertyValue("PathName");
if (obj == null)
{
continue;
}
var path = obj.ToString();
_logger.Info("Service path: {0}", path);
// Need to use indexOf instead of equality because the path will have the full service command line
if (path.IndexOf(applicationPath, StringComparison.OrdinalIgnoreCase) != -1)
{
_logger.Info("The windows service is already running");
MessageBox.Show("Emby Server is already running as a Windows Service. Only one instance is allowed at a time. To run as a tray icon, shut down the Windows Service.");
return(true);
}
}
return(false);
}
private static bool CanRestartWindowsService()
{
var startInfo = new ProcessStartInfo
{
FileName = "cmd.exe",
CreateNoWindow = true,
WindowStyle = ProcessWindowStyle.Hidden,
Verb = "runas",
ErrorDialog = false,
Arguments = String.Format("/c sc query {0}", BackgroundService.GetExistingServiceName())
};
using (var process = Process.Start(startInfo))
{
process.WaitForExit();
if (process.ExitCode == 0)
{
return(true);
}
else
{
return(false);
}
}
}
/// <summary>
/// Starts the service.
/// </summary>
private static void StartService(ILogManager logManager)
{
var service = new BackgroundService(logManager.GetLogger("Service"));
service.Disposed += service_Disposed;
ServiceBase.Run(service);
}
private static void RunServiceInstallationIfNeeded(string applicationPath)
{
var serviceName = BackgroundService.GetExistingServiceName();
var ctl = ServiceController.GetServices().FirstOrDefault(s => s.ServiceName == serviceName);
if (ctl == null)
{
RunServiceInstallation(applicationPath);
}
}
private static void ShutdownWindowsService()
{
_logger.Info("Stopping background service");
var service = new ServiceController(BackgroundService.GetExistingServiceName());
service.Refresh();
if (service.Status == ServiceControllerStatus.Running)
{
service.Stop();
}
}
private static bool IsServiceInstalled()
{
try
{
var serviceName = BackgroundService.GetExistingServiceName();
var ctl = ServiceController.GetServices().FirstOrDefault(s => s.ServiceName == serviceName);
return(ctl != null);
}
catch
{
return(false);
}
}
/// <summary>
/// Starts the service.
/// </summary>
private static void StartService(ILogManager logManager)
{
var service = new BackgroundService(logManager.GetLogger("Service"));
service.Disposed += service_Disposed;
ServiceBase.Run(service);
}
private static void RestartWindowsService()
{
_logger.Info("Restarting background service");
var startInfo = new ProcessStartInfo
{
FileName = "cmd.exe",
CreateNoWindow = true,
WindowStyle = ProcessWindowStyle.Hidden,
Verb = "runas",
ErrorDialog = false,
Arguments = String.Format("/c sc stop {0} & sc start {0} & sc start {0}", BackgroundService.GetExistingServiceName())
};
Process.Start(startInfo);
}
