private void StopProcess(int pid)
{
WriteEvent("Stopping process " + pid);
Process proc;
try
{
proc = Process.GetProcessById(pid);
}
catch (ArgumentException)
{
WriteEvent("Process " + pid + " is already stopped");
return;
}
WriteEvent("Send SIGINT " + pid);
bool successful = SigIntHelper.SendSIGINTToProcess(proc, _descriptor.StopTimeout);
if (successful)
{
WriteEvent("SIGINT to" + pid + " successful");
}
else
{
try
{
WriteEvent("SIGINT to " + pid + " failed - Killing as fallback");
proc.Kill();
}
catch (ArgumentException)
{
// Process already exited.
}
}
}
private void StopProcessAndChildren(int pid)
{
var searcher = new ManagementObjectSearcher("Select * From Win32_Process Where ParentProcessID=" + pid);
foreach (var mo in searcher.Get())
{
StopProcessAndChildren(Convert.ToInt32(mo["ProcessID"]));
}
var proc = Process.GetProcessById(pid);
WriteEvent("Send SIGINT " + process.Id);
bool successful = SigIntHelper.SendSIGINTToProcess(proc, descriptor.StopTimeout);
if (successful)
{
WriteEvent("SIGINT to" + process.Id + " successful");
}
else
{
try
{
WriteEvent("SIGINT to " + process.Id + " failed - Killing as fallback");
proc.Kill();
}
catch (ArgumentException)
{
// Process already exited.
}
}
}
// ReSharper disable once InconsistentNaming
/// <summary>
/// Runs the wrapper.
/// </summary>
/// <param name="_args">Arguments.</param>
/// <param name="descriptor">Service descriptor. If null, it will be initialized within the method.
/// In such case configs will be loaded from the XML Configuration File.</param>
/// <exception cref="Exception">Any unhandled exception</exception>
public static void Run(string[] _args, ServiceDescriptor?descriptor = null)
{
bool inCliMode = _args.Length > 0;
// If descriptor is not specified, initialize the new one (and load configs from there)
descriptor ??= new ServiceDescriptor();
// Configure the wrapper-internal logging.
// STDIN and STDOUT of the child process will be handled independently.
InitLoggers(descriptor, inCliMode);
if (!inCliMode)
{
Log.Debug("Starting WinSW in the service mode");
Run(new WrapperService(descriptor));
return;
}
Log.Debug("Starting WinSW in the CLI mode");
if (_args.Length == 0)
{
printHelp();
return;
}
// Get service info for the future use
Win32Services svc = new WmiRoot().GetCollection <Win32Services>();
Win32Service? s = svc.Select(descriptor.Id);
var args = new List <string>(Array.AsReadOnly(_args));
if (args[0] == "/redirect")
{
// Redirect output
// One might ask why we support this when the caller
// can redirect the output easily. The answer is for supporting UAC.
// On UAC-enabled Windows such as Vista, SCM operation requires
// elevated privileges, thus winsw.exe needs to be launched
// accordingly. This in turn limits what the caller can do,
// and among other things it makes it difficult for the caller
// to read stdout/stderr. Thus redirection becomes handy.
var f = new FileStream(args[1], FileMode.Create);
var w = new StreamWriter(f)
{
AutoFlush = true
};
Console.SetOut(w);
Console.SetError(w);
var handle = f.SafeFileHandle;
Kernel32.SetStdHandle(-11, handle); // set stdout
Kernel32.SetStdHandle(-12, handle); // set stder
args = args.GetRange(2, args.Count - 2);
}
bool elevated;
if (args[0] == "/elevated")
{
elevated = true;
_ = SigIntHelper.FreeConsole();
_ = SigIntHelper.AttachConsole(SigIntHelper.ATTACH_PARENT_PROCESS);
args = args.GetRange(1, args.Count - 1);
}
else if (Environment.OSVersion.Version.Major == 5)
{
// Windows XP
elevated = true;
}
else
{
elevated = IsProcessElevated();
}
switch (args[0].ToLower())
{
case "install":
Install();
return;
case "uninstall":
Uninstall();
return;
case "start":
Start();
return;
case "stop":
Stop();
return;
case "restart":
Restart();
return;
case "restart!":
RestartSelf();
return;
case "status":
Status();
return;
case "test":
Test();
return;
case "testwait":
TestWait();
return;
case "help":
case "--help":
case "-h":
case "-?":
case "/?":
printHelp();
return;
case "version":
printVersion();
return;
default:
Console.WriteLine("Unknown command: " + args[0]);
printAvailableCommandsInfo();
throw new Exception("Unknown command: " + args[0]);
}
void Install()
{
if (!elevated)
{
Elevate();
return;
}
Log.Info("Installing the service with id '" + descriptor.Id + "'");
// Check if the service exists
if (s != null)
{
Console.WriteLine("Service with id '" + descriptor.Id + "' already exists");
Console.WriteLine("To install the service, delete the existing one or change service Id in the configuration file");
throw new Exception("Installation failure: Service with id '" + descriptor.Id + "' already exists");
}
string?username = null;
string?password = null;
bool setallowlogonasaserviceright = false; // This variable is very readable.
if (args.Count > 1 && args[1] == "/p")
{
// we expected username/password on stdin
Console.Write("Username: "******"Password: "******"Set Account rights to allow log on as a service (y/n)?: ");
var keypressed = Console.ReadKey();
Console.WriteLine();
if (keypressed.Key == ConsoleKey.Y)
{
setallowlogonasaserviceright = true;
}
}
else
{
if (descriptor.HasServiceAccount())
{
username = descriptor.ServiceAccountUser;
password = descriptor.ServiceAccountPassword;
setallowlogonasaserviceright = descriptor.AllowServiceAcountLogonRight;
}
}
if (setallowlogonasaserviceright)
{
LogonAsAService.AddLogonAsAServiceRight(username !);
}
svc.Create(
descriptor.Id,
descriptor.Caption,
"\"" + descriptor.ExecutablePath + "\"",
ServiceType.OwnProcess,
ErrorControl.UserNotified,
descriptor.StartMode.ToString(),
descriptor.Interactive,
username,
password,
descriptor.ServiceDependencies);
using ServiceManager scm = new ServiceManager();
using Service sc = scm.Open(descriptor.Id);
sc.SetDescription(descriptor.Description);
var actions = descriptor.FailureActions;
if (actions.Count > 0)
{
sc.SetFailureActions(descriptor.ResetFailureAfter, actions);
}
var isDelayedAutoStart = descriptor.StartMode == StartMode.Automatic && descriptor.DelayedAutoStart;
if (isDelayedAutoStart)
{
sc.SetDelayedAutoStart(true);
}
if (descriptor.SecurityDescriptor != null)
{
// throws ArgumentException
RawSecurityDescriptor rawSecurityDescriptor = new RawSecurityDescriptor(descriptor.SecurityDescriptor);
byte[] securityDescriptorBytes = new byte[rawSecurityDescriptor.BinaryLength];
rawSecurityDescriptor.GetBinaryForm(securityDescriptorBytes, 0);
_ = Advapi32.SetServiceObjectSecurity(sc.Handle, SecurityInfos.DiscretionaryAcl, securityDescriptorBytes);
}
string eventLogSource = descriptor.Id;
if (!EventLog.SourceExists(eventLogSource))
{
EventLog.CreateEventSource(eventLogSource, "Application");
}
}
void Uninstall()
{
if (!elevated)
{
Elevate();
return;
}
Log.Info("Uninstalling the service with id '" + descriptor.Id + "'");
if (s is null)
{
Log.Warn("The service with id '" + descriptor.Id + "' does not exist. Nothing to uninstall");
return; // there's no such service, so consider it already uninstalled
}
if (s.Started)
{
// We could fail the opeartion here, but it would be an incompatible change.
// So it is just a warning
Log.Warn("The service with id '" + descriptor.Id + "' is running. It may be impossible to uninstall it");
}
try
{
s.Delete();
}
catch (WmiException e)
{
if (e.ErrorCode == ReturnValue.ServiceMarkedForDeletion)
{
Log.Error("Failed to uninstall the service with id '" + descriptor.Id + "'"
+ ". It has been marked for deletion.");
// TODO: change the default behavior to Error?
return; // it's already uninstalled, so consider it a success
}
else
{
Log.Fatal("Failed to uninstall the service with id '" + descriptor.Id + "'. WMI Error code is '" + e.ErrorCode + "'");
}
throw e;
}
}
void Start()
{
if (!elevated)
{
Elevate();
return;
}
Log.Info("Starting the service with id '" + descriptor.Id + "'");
if (s is null)
{
ThrowNoSuchService();
}
try
{
s.StartService();
}
catch (WmiException e)
{
if (e.ErrorCode == ReturnValue.ServiceAlreadyRunning)
{
Log.Info($"The service with ID '{descriptor.Id}' has already been started");
}
else
{
throw;
}
}
}
void Stop()
{
if (!elevated)
{
Elevate();
return;
}
Log.Info("Stopping the service with id '" + descriptor.Id + "'");
if (s is null)
{
ThrowNoSuchService();
}
try
{
s.StopService();
}
catch (WmiException e)
{
if (e.ErrorCode == ReturnValue.ServiceCannotAcceptControl)
{
Log.Info($"The service with ID '{descriptor.Id}' is not running");
}
else
{
throw;
}
}
}
void Restart()
{
if (!elevated)
{
Elevate();
return;
}
Log.Info("Restarting the service with id '" + descriptor.Id + "'");
if (s is null)
{
ThrowNoSuchService();
}
if (s.Started)
{
s.StopService();
}
while (s.Started)
{
Thread.Sleep(1000);
s = svc.Select(descriptor.Id) !;
}
s.StartService();
}
void RestartSelf()
{
if (!elevated)
{
throw new UnauthorizedAccessException("Access is denied.");
}
Log.Info("Restarting the service with id '" + descriptor.Id + "'");
// run restart from another process group. see README.md for why this is useful.
bool result = Kernel32.CreateProcess(null, descriptor.ExecutablePath + " restart", IntPtr.Zero, IntPtr.Zero, false, Kernel32.CREATE_NEW_PROCESS_GROUP, IntPtr.Zero, null, default, out _);