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GNU GENERAL PUBLIC LICENSE
Version 3, 29 June 2007
Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
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How to Apply These Terms to Your New Programs
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into proprietary programs. If your program is a subroutine library, you
may consider it more useful to permit linking proprietary applications with
the library. If this is what you want to do, use the GNU Lesser General
Public License instead of this License. But first, please read
<https://www.gnu.org/licenses/why-not-lgpl.html>.

65
netsd/Handlers/Init.cs
View file

@ -1,81 +1,18 @@
using Grpc.Core;
using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;
using Microsoft.AspNetCore.Server.Kestrel.Core;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Logging;
using netsd.Utils;
using NetsdRPCs;
using Serilog;
using Serilog.Core;
using Serilog.Events;
namespace netsd.Handlers; namespace netsd.Handlers;
public class Init public class Init
{ {
public static readonly Logger Logger = new LoggerConfiguration()
.MinimumLevel.Debug()
.MinimumLevel.Override("Microsoft", LogEventLevel.Information)
.Enrich.FromLogContext()
.WriteTo.Console(outputTemplate: "[{Timestamp:HH:mm:ss} {Level:u3}] {Message:lj}{NewLine}{Exception}")
.CreateLogger();
private readonly WebApplicationBuilder _socketBuilder = WebApplication.CreateBuilder(); private readonly WebApplicationBuilder _socketBuilder = WebApplication.CreateBuilder();
public Init() public Init()
{ {
_socketBuilder.WebHost.ConfigureKestrel(options => _socketBuilder.WebHost.ConfigureKestrel(options =>
{ {
options.ListenUnixSocket("/tmp/netsd.sock", options.ListenUnixSocket("/tmp/netsd.sock");
listenOptions => { listenOptions.Protocols = HttpProtocols.Http2; });
}); });
_socketBuilder.Host.UseSerilog(Logger);
_socketBuilder.Logging.ClearProviders();
_socketBuilder.Services.AddGrpc();
var app = _socketBuilder.Build(); var app = _socketBuilder.Build();
app.MapGrpcService<NetsdRPCs>();
app.Run(); app.Run();
} }
} }
public class NetsdRPCs : Messages.MessagesBase
{
public override async Task<StartStopReply> StartService(StartRequest request, ServerCallContext context)
{
Init.Logger.Information($"Received request to start service {Path.GetFileName(request.Path)}.");
var startService = await Utils.StartService.InitAsync(request.Path);
var thread = new Thread(startService.StartServiceAsync);
thread.Start();
Init.Logger.Information($"Started service {Path.GetFileName(Path.GetFileName(request.Path))}.");
Globals.Services.Add(startService);
return new StartStopReply { Success = true };
}
public override async Task<StartStopReply> StopService(StopRequest request, ServerCallContext context)
{
Init.Logger.Information($"Received request to stop service {request.Name}.");
var findService = Globals.Services.FindAll(service => service.Name == request.Name);
if (findService.Count == 0)
return new StartStopReply { Success = false, Error = $"Could not find service with name {request.Name}!" };
await findService.First().StopServiceAsync();
Globals.Services.Remove(findService.First());
Init.Logger.Information($"Stopped service {request.Name}!");
return new StartStopReply { Success = true };
}
}

29
netsd/Handlers/Start.cs
View file

@ -1,29 +0,0 @@
using netsd.Utils;
using NetsdRPCs;
namespace netsd.Handlers;
public static class Start
{
public static async Task StartAsync(string? ServiceFilePath = null, string? ServiceName = null)
{
if (ServiceFilePath == null && ServiceName != null)
{
if (!Path.Exists($"/etc/netsd/services/{ServiceName}.service"))
{
// TODO: Add proper error messages (and most likely something like serilog for logging)
Environment.Exit(1);
return;
}
ServiceFilePath = Path.GetFullPath($"/etc/netsd/services/{ServiceName}.service");
}
using var channel = UDSConnector.CreateChannel();
var client = new Messages.MessagesClient(channel);
var reply = await client.StartServiceAsync(new StartRequest { Path = ServiceFilePath });
Console.WriteLine($"{reply.Success}");
}
}

17
netsd/Handlers/Stop.cs
View file

@ -1,17 +0,0 @@
using netsd.Utils;
using NetsdRPCs;
namespace netsd.Handlers;
public static class Stop
{
public static async Task StopAsync(string ServiceName)
{
using var channel = UDSConnector.CreateChannel();
var client = new Messages.MessagesClient(channel);
var reply = await client.StopServiceAsync(new StopRequest { Name = ServiceName });
Console.WriteLine($"{reply.Success}");
}
}

30
netsd/Program.cs
View file

@ -3,36 +3,12 @@ using netsd.Handlers;
var initCommand = new Command("init", "Run and bring up all default services"); var initCommand = new Command("init", "Run and bring up all default services");
var startCommand = new Command("start", "Starts up a netsd service");
var startServiceName = new Argument<string>("name", "The name of the service you want to start");
var startServicePath = new Option<FileInfo>("--file", "The path to the service file");
var stopCommand = new Command("stop", "Stops a running netsd service");
var stopServiceName = new Argument<string>("name", "The name of the service you want to stop");
startServiceName.SetDefaultValue("");
startServicePath.AddAlias("-f");
startCommand.AddArgument(startServiceName);
startCommand.AddOption(startServicePath);
stopCommand.AddArgument(stopServiceName);
var rootCommand = new RootCommand("Linux service manager written in C#"); var rootCommand = new RootCommand("Linux service manager written in C#");
rootCommand.AddCommand(initCommand); rootCommand.AddCommand(initCommand);
rootCommand.AddCommand(startCommand);
rootCommand.AddCommand(stopCommand);
initCommand.SetHandler(() => new Init()); initCommand.SetHandler((() =>
startCommand.SetHandler(async (file, name) =>
{ {
if (name.Length != 0) new Init();
await Start.StartAsync(ServiceName: name); }));
else
await Start.StartAsync(file.FullName);
}, startServicePath, startServiceName);
stopCommand.SetHandler(async name => { await Stop.StopAsync(name); }, stopServiceName);
return await rootCommand.InvokeAsync(args); return await rootCommand.InvokeAsync(args);

23
netsd/Protos/rpcs.proto
View file

@ -1,23 +0,0 @@
syntax = "proto3";
option csharp_namespace = "NetsdRPCs";
package netsd;
service Messages {
rpc StartService (StartRequest) returns (StartStopReply);
rpc StopService (StopRequest) returns (StartStopReply);
}
message StartRequest {
string Path = 1;
}
message StartStopReply {
bool Success = 1;
optional string Error = 2;
}
message StopRequest {
string Name = 1;
}

6
netsd/Utils/Globals.cs
View file

@ -1,6 +0,0 @@
namespace netsd.Utils;
public static class Globals
{
public static List<StartService> Services = new();
}

21
netsd/Utils/ServiceParser.cs
View file

@ -1,21 +0,0 @@
using IniParser;
namespace netsd.Utils;
public class ServiceParser
{
public string? ExecStart { get; private set; }
public static async Task<ServiceParser> Parse(string ServiceInfoPath)
{
var readServiceFile = await File.ReadAllTextAsync(ServiceInfoPath);
var parser = new FileIniDataParser();
var serviceData = parser.Parser.Parse(readServiceFile);
var sv = new ServiceParser();
sv.ExecStart = serviceData["Service"]["ExecStart"];
return sv;
}
}

75
netsd/Utils/StartService.cs
View file

@ -1,75 +0,0 @@
using System.Diagnostics;
using netsd.Handlers;
namespace netsd.Utils;
public class StartService
{
private readonly List<Log> _logs;
private readonly ServiceParser _parseServiceFile;
private readonly Process _process;
private readonly string _servicePath;
public readonly string Name;
private StartService(string servicePath, ServiceParser parseServiceFile)
{
Name = Path.GetFileName(servicePath).Split(".")[0];
_parseServiceFile = parseServiceFile;
_servicePath = servicePath;
_process = new Process();
_logs = new List<Log>();
_process.StartInfo.FileName = _parseServiceFile.ExecStart?.Split(' ').First();
_process.StartInfo.Arguments = string.Join(" ", _parseServiceFile.ExecStart?.Split(' ').Skip(1)!);
_process.StartInfo.UseShellExecute = false;
_process.StartInfo.RedirectStandardOutput = true;
_process.StartInfo.RedirectStandardError = true;
_process.EnableRaisingEvents = true;
_process.OutputDataReceived += (sender, args) =>
_logs.Add(new Log { Type = LogType.StdOut, Message = args.Data! });
_process.ErrorDataReceived += (sender, args) =>
_logs.Add(new Log { Type = LogType.StdErr, Message = args.Data! });
_process.Exited += (sender, args) =>
{
if (_process.ExitCode != 0)
Init.Logger.Error(
$"Service {Path.GetFileName(_servicePath)} exited with a non-zero code! ({_process.ExitCode})");
};
}
public static async Task<StartService> InitAsync(string servicePath)
{
var parseServiceFile = await ServiceParser.Parse(servicePath);
return new StartService(servicePath, parseServiceFile);
}
public async Task StopServiceAsync()
{
_process.Kill();
await _process.WaitForExitAsync();
_process.Dispose();
}
public async void StartServiceAsync()
{
_process.Start();
_process.BeginOutputReadLine();
_process.BeginErrorReadLine();
await _process.WaitForExitAsync();
}
}
public struct Log
{
public LogType Type;
public string Message;
}
public enum LogType
{
StdOut = 1,
StdErr = 2,
}

48
netsd/Utils/UDSConnector.cs
View file

@ -1,48 +0,0 @@
using System.Net;
using System.Net.Sockets;
using Grpc.Net.Client;
namespace netsd.Utils;
public class UDSConnector
{
private static readonly string _socketPath = Path.Combine(Path.GetTempPath(), "netsd.sock");
private readonly EndPoint _endPoint;
private UDSConnector(EndPoint endPoint)
{
_endPoint = endPoint;
}
private async ValueTask<Stream> _connectAsync(SocketsHttpConnectionContext _,
CancellationToken cancellationToken = default)
{
var socket = new Socket(AddressFamily.Unix, SocketType.Stream, ProtocolType.Unspecified);
try
{
await socket.ConnectAsync(_endPoint, cancellationToken).ConfigureAwait(false);
return new NetworkStream(socket, true);
}
catch
{
socket.Dispose();
throw;
}
}
public static GrpcChannel CreateChannel()
{
var udsEndPoint = new UnixDomainSocketEndPoint(_socketPath);
var connectionFactory = new UDSConnector(udsEndPoint);
var socketsHttpHandler = new SocketsHttpHandler
{
ConnectCallback = connectionFactory._connectAsync,
};
return GrpcChannel.ForAddress("http://localhost", new GrpcChannelOptions
{
HttpHandler = socketsHttpHandler,
});
}
}

23
netsd/netsd.csproj
View file

@ -1,4 +1,4 @@
<Project Sdk="Microsoft.NET.Sdk"> <Project Sdk="Microsoft.NET.Sdk.Web">
<PropertyGroup> <PropertyGroup>
<OutputType>Exe</OutputType> <OutputType>Exe</OutputType>
@ -10,7 +10,10 @@
<FileVersion>0.0.0.1</FileVersion> <FileVersion>0.0.0.1</FileVersion>
<Configurations>Release;Debug</Configurations> <Configurations>Release;Debug</Configurations>
<Platforms>x64</Platforms> <Platforms>x64</Platforms>
<!-- Agressive Trimming (Saves a lot of mbs for the end user :3) --> <!-- Agressive Optimizations (Saves a lot of mbs for the end user :3) -->
<PublishAot>true</PublishAot>
<IlcOptimizationPreference>Size</IlcOptimizationPreference>
<IlcGenerateStackTraceData>false</IlcGenerateStackTraceData>
<StripSymbols>true</StripSymbols> <StripSymbols>true</StripSymbols>
<DebuggerSupport>false</DebuggerSupport> <DebuggerSupport>false</DebuggerSupport>
<EnableUnsafeUTF7Encoding>false</EnableUnsafeUTF7Encoding> <EnableUnsafeUTF7Encoding>false</EnableUnsafeUTF7Encoding>
@ -22,27 +25,13 @@
<MetadataUpdaterSupport>false</MetadataUpdaterSupport> <MetadataUpdaterSupport>false</MetadataUpdaterSupport>
<UseNativeHttpHandler>true</UseNativeHttpHandler> <UseNativeHttpHandler>true</UseNativeHttpHandler>
<UseSystemResourceKeys>true</UseSystemResourceKeys> <UseSystemResourceKeys>true</UseSystemResourceKeys>
<PublishTrimmed>true</PublishTrimmed>
<PublishSingleFile>true</PublishSingleFile>
</PropertyGroup> </PropertyGroup>
<ItemGroup> <ItemGroup>
<FrameworkReference Include="Microsoft.AspNetCore.App" /> <PackageReference Include="Microsoft.Extensions.Hosting" Version="7.0.0" />
</ItemGroup>
<ItemGroup>
<PackageReference Include="Grpc.AspNetCore" Version="2.50.0" />
<PackageReference Include="ini-parser" Version="3.4.0" />
<PackageReference Include="runtime.linux-musl-x64.Microsoft.DotNet.ILCompiler" Version="7.0.0" /> <PackageReference Include="runtime.linux-musl-x64.Microsoft.DotNet.ILCompiler" Version="7.0.0" />
<PackageReference Include="runtime.linux-x64.Microsoft.DotNet.ILCompiler" Version="7.0.0" /> <PackageReference Include="runtime.linux-x64.Microsoft.DotNet.ILCompiler" Version="7.0.0" />
<PackageReference Include="Serilog" Version="2.12.0" />
<PackageReference Include="Serilog.AspNetCore" Version="6.0.1" />
<PackageReference Include="Serilog.Sinks.Console" Version="4.1.0" />
<PackageReference Include="System.CommandLine" Version="2.0.0-beta4.22272.1" /> <PackageReference Include="System.CommandLine" Version="2.0.0-beta4.22272.1" />
</ItemGroup> </ItemGroup>
<ItemGroup>
<Protobuf Include="Protos\rpcs.proto" />
</ItemGroup>
</Project> </Project>