internal static unsafe bool IsProcessElevated()
{
var process = ProcessApis.GetCurrentProcess();
if (!ProcessApis.OpenProcessToken(process, TokenAccessLevels.Read, out var token))
{
Throw.Command.Win32Exception("Failed to open process token.");
}
try
{
if (!SecurityApis.GetTokenInformation(
token,
SecurityApis.TOKEN_INFORMATION_CLASS.TokenElevation,
out var elevation,
sizeof(SecurityApis.TOKEN_ELEVATION),
out _))
{
Throw.Command.Win32Exception("Failed to get token information");
}
return(elevation.TokenIsElevated != 0);
}
finally
{
_ = HandleApis.CloseHandle(token);
}
}
public static void Run(string[] argsArray, IServiceConfig?config = null)
{
bool inConsoleMode = argsArray.Length > 0;
config ??= LoadConfigAndInitLoggers(inConsoleMode);
if (!inConsoleMode)
{
Log.Debug("Starting WinSW in service mode");
using var service = new WrapperService(config);
try
{
ServiceBase.Run(service);
}
catch
{
// handled in OnStart
}
return;
}
Log.Debug("Starting WinSW in console mode");
if (argsArray.Length == 0)
{
PrintHelp();
return;
}
var args = new List <string>(Array.AsReadOnly(argsArray));
if (args[0] == "/redirect")
{
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;
_ = ConsoleApis.FreeConsole();
_ = ConsoleApis.AttachConsole(ConsoleApis.ATTACH_PARENT_PROCESS);
#if VNEXT
string stdinName = args[1];
if (stdinName != NoPipe)
{
var stdin = new NamedPipeClientStream(".", stdinName, PipeDirection.In, PipeOptions.Asynchronous);
stdin.Connect();
Console.SetIn(new StreamReader(stdin));
}
string stdoutName = args[2];
if (stdoutName != NoPipe)
{
var stdout = new NamedPipeClientStream(".", stdoutName, PipeDirection.Out, PipeOptions.Asynchronous);
stdout.Connect();
Console.SetOut(new StreamWriter(stdout)
{
AutoFlush = true
});
}
string stderrName = args[3];
if (stderrName != NoPipe)
{
var stderr = new NamedPipeClientStream(".", stderrName, PipeDirection.Out, PipeOptions.Asynchronous);
stderr.Connect();
Console.SetError(new StreamWriter(stderr)
{
AutoFlush = true
});
}
args = args.GetRange(4, args.Count - 4);
#else
args = args.GetRange(1, args.Count - 1);
#endif
}
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(true);
return;
case "stopwait":
Stop(false);
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]);
PrintAvailableCommands();
throw new Exception("Unknown command: " + args[0]);
}
void Install()
{
if (!elevated)
{
Elevate();
return;
}
Log.Info($"Installing service '{Format(config)}'...");
using var scm = ServiceManager.Open(ServiceManagerAccess.CreateService);
if (scm.ServiceExists(config.Name))
{
Log.Error($"A service with ID '{config.Name}' already exists.");
Throw.Command.Win32Exception(Errors.ERROR_SERVICE_EXISTS, "Failed to install the service.");
}
string?username = null;
string?password = null;
bool allowServiceLogonRight = false;
if (args.Count > 1 && args[1] == "/p")
{
Credentials.PromptForCredentialsConsole(ref username, ref password);
Console.Write("Set Account rights to allow log on as a service (y/n)?: ");
var keypressed = Console.ReadKey();
Console.WriteLine();
if (keypressed.Key == ConsoleKey.Y)
{
allowServiceLogonRight = true;
}
}
else
{
if (config.ServiceAccount.HasServiceAccount())
{
username = config.ServiceAccount.FullUser;
password = config.ServiceAccount.Password;
allowServiceLogonRight = config.ServiceAccount.AllowServiceLogonRight;
}
}
if (allowServiceLogonRight)
{
Security.AddServiceLogonRight(config.ServiceAccount.Domain !, config.ServiceAccount.User !);
}
using var sc = scm.CreateService(
config.Name,
config.DisplayName,
config.Interactive,
config.StartMode,
$"\"{config.ExecutablePath}\"",
config.ServiceDependencies,
username,
password);
string description = config.Description;
if (description.Length != 0)
{
sc.SetDescription(description);
}
var actions = config.FailureActions;
if (actions.Length > 0)
{
sc.SetFailureActions(config.ResetFailureAfter, actions);
}
bool isDelayedAutoStart = config.StartMode == ServiceStartMode.Automatic && config.DelayedAutoStart;
if (isDelayedAutoStart)
{
sc.SetDelayedAutoStart(true);
}
string?securityDescriptor = config.SecurityDescriptor;
if (securityDescriptor != null)
{
// throws ArgumentException
sc.SetSecurityDescriptor(new RawSecurityDescriptor(securityDescriptor));
}
string eventLogSource = config.Name;
if (!EventLog.SourceExists(eventLogSource))
{
EventLog.CreateEventSource(eventLogSource, "Application");
}
Log.Info($"Service '{Format(config)}' was installed successfully.");
}
void Uninstall()
{
if (!elevated)
{
Elevate();
return;
}
Log.Info($"Uninstalling service '{Format(config)}'...");
using var scm = ServiceManager.Open(ServiceManagerAccess.Connect);
try
{
using var sc = scm.OpenService(config.Name);
if (sc.Status != ServiceControllerStatus.Stopped)
{
// We could fail the opeartion here, but it would be an incompatible change.
// So it is just a warning
Log.Warn($"Service '{Format(config)}' is started. It may be impossible to uninstall it.");
}
sc.Delete();
Log.Info($"Service '{Format(config)}' was uninstalled successfully.");
}
catch (CommandException e) when(e.InnerException is Win32Exception inner)
{
switch (inner.NativeErrorCode)
{
case Errors.ERROR_SERVICE_DOES_NOT_EXIST:
Log.Warn($"Service '{Format(config)}' does not exist.");
break; // there's no such service, so consider it already uninstalled
case Errors.ERROR_SERVICE_MARKED_FOR_DELETE:
Log.Error(e.Message);
// TODO: change the default behavior to Error?
break; // it's already uninstalled, so consider it a success
default:
Throw.Command.Exception("Failed to uninstall the service.", inner);
break;
}
}
}
void Start()
{
if (!elevated)
{
Elevate();
return;
}
using var svc = new ServiceController(config.Name);
try
{
Log.Info($"Starting service '{Format(svc)}'...");
svc.Start();
Log.Info($"Service '{Format(svc)}' started successfully.");
}
catch (InvalidOperationException e)
when(e.InnerException is Win32Exception inner && inner.NativeErrorCode == Errors.ERROR_SERVICE_DOES_NOT_EXIST)
{
Throw.Command.Exception(inner);
}
catch (InvalidOperationException e)
when(e.InnerException is Win32Exception inner && inner.NativeErrorCode == Errors.ERROR_SERVICE_ALREADY_RUNNING)
{
Log.Info($"Service '{Format(svc)}' has already started.");
}
}
void Stop(bool noWait)
{
if (!elevated)
{
Elevate();
return;
}
using var svc = new ServiceController(config.Name);
try
{
Log.Info($"Stopping service '{Format(svc)}'...");
svc.Stop();
if (!noWait)
{
try
{
WaitForStatus(svc, ServiceControllerStatus.Stopped, ServiceControllerStatus.StopPending);
}
catch (TimeoutException)
{
Throw.Command.Exception("Failed to stop the service.");
}
}
Log.Info($"Service '{Format(svc)}' stopped successfully.");
}
catch (InvalidOperationException e)
when(e.InnerException is Win32Exception inner && inner.NativeErrorCode == Errors.ERROR_SERVICE_DOES_NOT_EXIST)
{
Throw.Command.Exception(inner);
}
catch (InvalidOperationException e)
when(e.InnerException is Win32Exception inner && inner.NativeErrorCode == Errors.ERROR_SERVICE_NOT_ACTIVE)
{
Log.Info($"Service '{Format(svc)}' has already stopped.");
}
}
void Restart()
{
if (!elevated)
{
Elevate();
return;
}
using var svc = new ServiceController(config.Name);
List <ServiceController>?startedDependentServices = null;
try
{
if (HasAnyStartedDependentService(svc))
{
startedDependentServices = new();
foreach (var service in svc.DependentServices)
{
if (service.Status != ServiceControllerStatus.Stopped)
{
startedDependentServices.Add(service);
}
}
}
Log.Info($"Stopping service '{Format(svc)}'...");
svc.Stop();
try
{
WaitForStatus(svc, ServiceControllerStatus.Stopped, ServiceControllerStatus.StopPending);
}
catch (TimeoutException)
{
Throw.Command.Exception("Failed to stop the service.");
}
}
catch (InvalidOperationException e)
when(e.InnerException is Win32Exception inner && inner.NativeErrorCode == Errors.ERROR_SERVICE_DOES_NOT_EXIST)
{
Throw.Command.Exception(inner);
}
catch (InvalidOperationException e)
when(e.InnerException is Win32Exception inner && inner.NativeErrorCode == Errors.ERROR_SERVICE_NOT_ACTIVE)
{
}
Log.Info($"Starting service '{Format(svc)}'...");
svc.Start();
try
{
WaitForStatus(svc, ServiceControllerStatus.Running, ServiceControllerStatus.StartPending);
}
catch (TimeoutException)
{
Throw.Command.Exception("Failed to start the service.");
}
if (startedDependentServices != null)
{
foreach (var service in startedDependentServices)
{
if (service.Status == ServiceControllerStatus.Stopped)
{
Log.Info($"Starting service '{Format(service)}'...");
service.Start();
}
}
}
Log.Info($"Service '{Format(svc)}' restarted successfully.");
}
void RestartSelf()
{
if (!elevated)
{
Throw.Command.Win32Exception(Errors.ERROR_ACCESS_DENIED);
}
Log.Info("Restarting the service with id '" + config.Name + "'");
// run restart from another process group. see README.md for why this is useful.
if (!ProcessApis.CreateProcess(
null,
config.ExecutablePath + " restart",
IntPtr.Zero,
IntPtr.Zero,
false,
ProcessApis.CREATE_NEW_PROCESS_GROUP,
IntPtr.Zero,
null,
default,
out var processInfo))
{
Throw.Command.Win32Exception("Failed to invoke restart.");
}
_ = HandleApis.CloseHandle(processInfo.ProcessHandle);
_ = HandleApis.CloseHandle(processInfo.ThreadHandle);
}
void Status()
{
using var svc = new ServiceController(config.Name);
try
{
Console.WriteLine(svc.Status != ServiceControllerStatus.Stopped ? "Started" : "Stopped");
}
catch (InvalidOperationException e)
when(e.InnerException is Win32Exception inner && inner.NativeErrorCode == Errors.ERROR_SERVICE_DOES_NOT_EXIST)
{
Console.WriteLine("NonExistent");
}
}
void Test()
{
if (!elevated)
{
Elevate();
return;
}
var wsvc = new WrapperService(config);
wsvc.RaiseOnStart(args.ToArray());
Thread.Sleep(1000);
wsvc.RaiseOnStop();
}
void TestWait()
{
if (!elevated)
{
Elevate();
return;
}
var wsvc = new WrapperService(config);
wsvc.RaiseOnStart(args.ToArray());
Console.WriteLine("Press any key to stop the service...");
_ = Console.Read();
wsvc.RaiseOnStop();
}
// [DoesNotReturn]
void Elevate()
{
#if VNEXT
string?stdinName = Console.IsInputRedirected ? Guid.NewGuid().ToString() : null;
string?stdoutName = Console.IsOutputRedirected ? Guid.NewGuid().ToString() : null;
string?stderrName = Console.IsErrorRedirected ? Guid.NewGuid().ToString() : null;
#endif
string exe = Environment.GetCommandLineArgs()[0];
string commandLine = Environment.CommandLine;
string arguments = "/elevated" +
#if VNEXT
" " + (stdinName ?? NoPipe) +
" " + (stdoutName ?? NoPipe) +
" " + (stderrName ?? NoPipe) +
#endif
commandLine.Remove(commandLine.IndexOf(exe), exe.Length).TrimStart('"');
var startInfo = new ProcessStartInfo
{
UseShellExecute = true,
Verb = "runas",
FileName = ExecutablePath,
Arguments = arguments,
WindowStyle = ProcessWindowStyle.Hidden,
};
try
{
using var elevated = Process.Start(startInfo) !;
#if VNEXT
if (stdinName != null)
{
var stdin = new NamedPipeServerStream(stdinName, PipeDirection.Out, 1, PipeTransmissionMode.Byte, PipeOptions.Asynchronous);
stdin.WaitForConnectionAsync().ContinueWith(_ => Console.OpenStandardInput().CopyToAsync(stdin));
}
if (stdoutName != null)
{
var stdout = new NamedPipeServerStream(stdoutName, PipeDirection.In, 1, PipeTransmissionMode.Byte, PipeOptions.Asynchronous);
stdout.WaitForConnectionAsync().ContinueWith(_ => stdout.CopyToAsync(Console.OpenStandardOutput()));
}
if (stderrName != null)
{
var stderr = new NamedPipeServerStream(stderrName, PipeDirection.In, 1, PipeTransmissionMode.Byte, PipeOptions.Asynchronous);
stderr.WaitForConnectionAsync().ContinueWith(_ => stderr.CopyToAsync(Console.OpenStandardError()));
}
#endif
elevated.WaitForExit();
Environment.Exit(elevated.ExitCode);
}
catch (Win32Exception e) when(e.NativeErrorCode == Errors.ERROR_CANCELLED)
{
Log.Fatal(e.Message);
Environment.Exit(e.ErrorCode);
}
}
}
private static IServiceConfig LoadConfigAndInitLoggers(bool inConsoleMode)
{
// TODO: Make logging levels configurable
var fileLogLevel = Level.Debug;
// TODO: Debug should not be printed to console by default. Otherwise commands like 'status' will be pollutted
// This is a workaround till there is a better command line parsing, which will allow determining
var consoleLogLevel = Level.Info;
var eventLogLevel = Level.Warn;
var layout = new PatternLayout {
ConversionPattern = "%d %-5p - %m%n"
};
layout.ActivateOptions();
var repository = LogManager.GetRepository(Assembly.GetExecutingAssembly());
if (inConsoleMode)
{
var consoleAppender = new ConsoleAppender
{
Name = "Wrapper console log",
Threshold = consoleLogLevel,
Layout = layout,
};
consoleAppender.ActivateOptions();
BasicConfigurator.Configure(repository, consoleAppender);
}
else
{
var eventLogAppender = new ServiceEventLogAppender(WrapperService.eventLogProvider)
{
Name = "Wrapper event log",
Threshold = eventLogLevel,
};
eventLogAppender.ActivateOptions();
BasicConfigurator.Configure(repository, eventLogAppender);
}
string executablePath = ExecutablePath;
string directory = Path.GetDirectoryName(executablePath) !;
string baseName = Path.GetFileNameWithoutExtension(executablePath);
IServiceConfig config =
File.Exists(Path.Combine(directory, baseName + ".xml")) ? new XmlServiceConfig(baseName, directory) :
File.Exists(Path.Combine(directory, baseName + ".yml")) ? new YamlServiceConfig(baseName, directory) :
throw new FileNotFoundException($"Unable to locate {baseName}.[xml|yml] file within executable directory");
// .wrapper.log
string wrapperLogPath = Path.Combine(config.LogDirectory, config.BaseName + ".wrapper.log");
var fileAppender = new FileAppender
{
AppendToFile = true,
File = wrapperLogPath,
ImmediateFlush = true,
Name = "Wrapper file log",
Threshold = fileLogLevel,
LockingModel = new FileAppender.MinimalLock(),
Layout = layout,
};
fileAppender.ActivateOptions();
BasicConfigurator.Configure(repository, fileAppender);
return(config);
}
internal static unsafe bool IsProcessElevated()