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using System.Linq;
using System;
using System.Diagnostics;
using NLog;
using Ninject;
namespace NzbDrone.Common
{
public class IISProvider
{
private static readonly Logger IISLogger = LogManager.GetCurrentClassLogger();
private static readonly Logger Logger = LogManager.GetCurrentClassLogger();
private readonly ConfigFileProvider _configFileProvider;
private readonly ProcessProvider _processProvider;
private readonly EnvironmentProvider _environmentProvider;
[Inject]
public IISProvider(ConfigFileProvider configFileProvider, ProcessProvider processProvider, EnvironmentProvider environmentProvider)
{
_configFileProvider = configFileProvider;
_processProvider = processProvider;
_environmentProvider = environmentProvider;
}
public IISProvider()
{
}
public string AppUrl
{
get { return string.Format("http://localhost:{0}/", _configFileProvider.Port); }
}
public int IISProcessId { get; private set; }
public bool ServerStarted { get; private set; }
public void StartServer()
{
Logger.Info("Preparing IISExpress Server...");
var startInfo = new ProcessStartInfo();
startInfo.FileName = _environmentProvider.GetIISExe();
startInfo.Arguments = String.Format("/config:\"{0}\" /trace:i", _environmentProvider.GetIISConfigPath());
startInfo.WorkingDirectory = _environmentProvider.ApplicationPath;
startInfo.UseShellExecute = false;
startInfo.RedirectStandardOutput = true;
startInfo.RedirectStandardError = true;
startInfo.CreateNoWindow = true;
startInfo.EnvironmentVariables[EnvironmentProvider.NZBDRONE_PATH] = _environmentProvider.ApplicationPath;
startInfo.EnvironmentVariables[EnvironmentProvider.NZBDRONE_PID] = Process.GetCurrentProcess().Id.ToString();
try
{
_configFileProvider.UpdateIISConfig(_environmentProvider.GetIISConfigPath());
}
catch (Exception e)
{
Logger.ErrorException("An error has occurred while trying to update the config file.", e);
}
var iisProcess = _processProvider.Start(startInfo);
IISProcessId = iisProcess.Id;
iisProcess.OutputDataReceived += (OnOutputDataReceived);
iisProcess.ErrorDataReceived += (OnErrorDataReceived);
iisProcess.BeginErrorReadLine();
iisProcess.BeginOutputReadLine();
ServerStarted = true;
}
private static void OnErrorDataReceived(object sender, DataReceivedEventArgs e)
{
if (e == null || String.IsNullOrWhiteSpace(e.Data))
return;
IISLogger.Error(e.Data);
}
public void RestartServer()
{
ServerStarted = false;
Logger.Warn("Attempting to restart server.");
StopServer();
StartServer();
}
public virtual void StopServer()
{
_processProvider.Kill(IISProcessId);
Logger.Info("Finding orphaned IIS Processes.");
foreach (var process in _processProvider.GetProcessByName("IISExpress"))
{
Logger.Info("[{0}]IIS Process found. Path:{1}", process.Id, process.StartPath);
if (DiskProvider.PathEquals(process.StartPath, _environmentProvider.GetIISExe()))
{
Logger.Info("[{0}]Process is considered orphaned.", process.Id);
_processProvider.Kill(process.Id);
}
else
{
Logger.Info("[{0}]Process has a different start-up path. skipping.", process.Id);
}
}
}
private void OnOutputDataReceived(object s, DataReceivedEventArgs e)
{
if (e == null || String.IsNullOrWhiteSpace(e.Data) || e.Data.StartsWith("Request started:") ||
e.Data.StartsWith("Request ended:") || e.Data == ("IncrementMessages called"))
return;
Console.WriteLine(e.Data);
}
}
}
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