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Lidarr/src/NzbDrone.Common/ServiceProvider.cs

231 lines
8.1 KiB

using System;
using System.Linq;
using System.ServiceProcess;
using NLog;
using NzbDrone.Common.Exceptions;
using NzbDrone.Common.Extensions;
using NzbDrone.Common.Processes;
namespace NzbDrone.Common
{
public interface IServiceProvider
{
bool ServiceExist(string name);
bool IsServiceRunning(string name);
void Install(string serviceName);
void Uninstall(string serviceName);
void Run(ServiceBase service);
ServiceController GetService(string serviceName);
void Stop(string serviceName);
void Start(string serviceName);
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ServiceControllerStatus GetStatus(string serviceName);
void Restart(string serviceName);
void SetPermissions(string serviceName);
}
public class ServiceProvider : IServiceProvider
{
public const string SERVICE_NAME = "Lidarr";
private readonly IProcessProvider _processProvider;
private readonly Logger _logger;
public ServiceProvider(IProcessProvider processProvider, Logger logger)
{
_processProvider = processProvider;
_logger = logger;
}
public virtual bool ServiceExist(string name)
{
_logger.Debug("Checking if service {0} exists.", name);
return
ServiceController.GetServices().Any(
s => string.Equals(s.ServiceName, name, StringComparison.InvariantCultureIgnoreCase));
}
public virtual bool IsServiceRunning(string name)
{
_logger.Debug("Checking if '{0}' service is running", name);
var service = ServiceController.GetServices()
.SingleOrDefault(s => string.Equals(s.ServiceName, name, StringComparison.InvariantCultureIgnoreCase));
return service != null && (
service.Status != ServiceControllerStatus.Stopped ||
service.Status == ServiceControllerStatus.StopPending ||
service.Status == ServiceControllerStatus.Paused ||
service.Status == ServiceControllerStatus.PausePending);
}
public virtual void Install(string serviceName)
{
_logger.Info("Installing service '{0}'", serviceName);
var args = $"create {serviceName} " +
$"DisplayName= \"{serviceName}\" " +
$"binpath= \"{Environment.ProcessPath}\" " +
"start= auto " +
"depend= EventLog/Tcpip/http " +
"obj= \"NT AUTHORITY\\LocalService\"";
_logger.Info(args);
var installOutput = _processProvider.StartAndCapture("sc.exe", args);
if (installOutput.ExitCode != 0)
{
_logger.Error($"Failed to install service: {installOutput.Lines.Select(x => x.Content).ConcatToString("\n")}");
throw new ServiceProviderException("Failed to install service");
}
_logger.Info(installOutput.Lines.Select(x => x.Content).ConcatToString("\n"));
var descOutput = _processProvider.StartAndCapture("sc.exe", $"description {serviceName} \"Lidarr Application Server\"");
if (descOutput.ExitCode != 0)
{
_logger.Error($"Failed to install service: {descOutput.Lines.Select(x => x.Content).ConcatToString("\n")}");
throw new ServiceProviderException("Failed to install service");
}
_logger.Info(descOutput.Lines.Select(x => x.Content).ConcatToString("\n"));
_logger.Info("Service Has installed successfully.");
}
public virtual void Uninstall(string serviceName)
{
_logger.Info("Uninstalling {0} service", serviceName);
Stop(serviceName);
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var output = _processProvider.StartAndCapture("sc.exe", $"delete {serviceName}");
_logger.Info(output.Lines.Select(x => x.Content).ConcatToString("\n"));
_logger.Info("{0} successfully uninstalled", serviceName);
}
public virtual void Run(ServiceBase service)
{
ServiceBase.Run(service);
}
public virtual ServiceController GetService(string serviceName)
{
return ServiceController.GetServices().FirstOrDefault(c => string.Equals(c.ServiceName, serviceName, StringComparison.InvariantCultureIgnoreCase));
}
public virtual void Stop(string serviceName)
{
_logger.Info("Stopping {0} Service...", serviceName);
var service = GetService(serviceName);
if (service == null)
{
_logger.Warn("Unable to stop {0}. no service with that name exists.", serviceName);
return;
}
_logger.Info("Service is currently {0}", service.Status);
if (service.Status != ServiceControllerStatus.Stopped)
{
service.Stop();
service.WaitForStatus(ServiceControllerStatus.Stopped, TimeSpan.FromSeconds(60));
service.Refresh();
if (service.Status == ServiceControllerStatus.Stopped)
{
_logger.Info("{0} has stopped successfully.", serviceName);
}
else
{
_logger.Error("Service stop request has timed out. {0}", service.Status);
}
}
else
{
_logger.Warn("Service {0} is already in stopped state.", service.ServiceName);
}
}
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public ServiceControllerStatus GetStatus(string serviceName)
{
return GetService(serviceName).Status;
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}
public void Start(string serviceName)
{
_logger.Info("Starting {0} Service...", serviceName);
var service = GetService(serviceName);
if (service == null)
{
_logger.Warn("Unable to start '{0}' no service with that name exists.", serviceName);
return;
}
if (service.Status != ServiceControllerStatus.Paused && service.Status != ServiceControllerStatus.Stopped)
{
_logger.Warn("Service is in a state that can't be started. Current status: {0}", service.Status);
}
service.Start();
service.WaitForStatus(ServiceControllerStatus.Running, TimeSpan.FromSeconds(60));
service.Refresh();
if (service.Status == ServiceControllerStatus.Running)
{
_logger.Info("{0} has started successfully.", serviceName);
}
else
{
_logger.Error("Service start request has timed out. {0}", service.Status);
}
}
public void Restart(string serviceName)
{
var args = string.Format("/C net.exe stop \"{0}\" && net.exe start \"{0}\"", serviceName);
_processProvider.Start("cmd.exe", args);
}
public void SetPermissions(string serviceName)
{
var dacls = GetServiceDacls(serviceName);
SetServiceDacls(serviceName, dacls);
}
private string GetServiceDacls(string serviceName)
{
var output = _processProvider.StartAndCapture("sc.exe", $"sdshow {serviceName}");
var dacls = output.Standard.Select(s => s.Content).Where(s => s.IsNotNullOrWhiteSpace()).ToList();
if (dacls.Count == 1)
{
return dacls[0];
}
throw new ArgumentException("Invalid DACL output");
}
private void SetServiceDacls(string serviceName, string dacls)
{
const string authenticatedUsersDacl = "(A;;CCLCSWRPWPLOCRRC;;;AU)";
if (dacls.Contains(authenticatedUsersDacl))
{
// Permissions already set
return;
}
var indexOfS = dacls.IndexOf("S:", StringComparison.InvariantCultureIgnoreCase);
dacls = indexOfS == -1 ? $"{dacls}{authenticatedUsersDacl}" : dacls.Insert(indexOfS, authenticatedUsersDacl);
_processProvider.Start("sc.exe", $"sdset {serviceName} {dacls}").WaitForExit();
}
}
}