public override void Start()
{
try
{
if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
{
PipeSecurity pipeSecurity = new PipeSecurity();
WindowsIdentity identity = WindowsIdentity.GetCurrent();
WindowsPrincipal principal = new WindowsPrincipal(identity);
if (principal.IsInRole(WindowsBuiltInRole.Administrator))
{
// Allow the Administrators group full access to the pipe.
pipeSecurity.AddAccessRule(new PipeAccessRule(
new SecurityIdentifier(WellKnownSidType.BuiltinAdministratorsSid, null).Translate(typeof(NTAccount)),
PipeAccessRights.FullControl, AccessControlType.Allow));
}
else
{
// Allow the current user read/write access to the pipe.
pipeSecurity.AddAccessRule(new PipeAccessRule(
WindowsIdentity.GetCurrent().User,
PipeAccessRights.ReadWrite, AccessControlType.Allow));
}
// Unfortunately, .NET Core does not support passing in a PipeSecurity object into the constructor for
// NamedPipeServerStream so we are creating native Named Pipes and securing them using native APIs. The
// issue on .NET Core regarding Named Pipe security is here: https://github.com/dotnet/corefx/issues/30170
// 99% of this code was borrowed from PowerShell here:
// https://github.com/PowerShell/PowerShell/blob/master/src/System.Management.Automation/engine/remoting/common/RemoteSessionNamedPipe.cs#L124-L256
this.inOutPipeServer = NamedPipeNative.CreateNamedPipe(inOutPipeName, pipeSecurity);
if (this.outPipeName != null)
{
this.outPipeServer = NamedPipeNative.CreateNamedPipe(outPipeName, pipeSecurity);
}
}
else
{
// This handles the Unix case since PipeSecurity is not supported on Unix.
// Instead, we use chmod in Start-EditorServices.ps1
this.inOutPipeServer = new NamedPipeServerStream(
pipeName: inOutPipeName,
direction: PipeDirection.InOut,
maxNumberOfServerInstances: 1,
transmissionMode: PipeTransmissionMode.Byte,
options: PipeOptions.Asynchronous);
if (this.outPipeName != null)
{
this.outPipeServer = new NamedPipeServerStream(
pipeName: outPipeName,
direction: PipeDirection.Out,
maxNumberOfServerInstances: 1,
transmissionMode: PipeTransmissionMode.Byte,
options: PipeOptions.None);
}
}
ListenForConnection();
}
catch (IOException e)
{
this.logger.Write(
LogLevel.Verbose,
"Named pipe server failed to start due to exception:\r\n\r\n" + e.Message);
throw e;
}
}