Replace NetMQ with custom TCP logic

.gitignore

@@ -192,7 +192,6 @@ ClientBin/
 *.dbmdl
 *.dbproj.schemaview
 *.jfm
-*.pfx
 *.publishsettings
 orleans.codegen.cs
 

.run/Agent 1.run.xml

@@ -5,7 +5,7 @@
     <option name="WORKING_DIRECTORY" value="$PROJECT_DIR$/.workdir/Agent1" />
     <option name="PASS_PARENT_ENVS" value="1" />
     <envs>
-      <env name="AGENT_KEY" value="JXBQQYG5T267RQS75MXWBTCJZY5CKTCCGQY22MCZPHSQQSJYCHH2NG2TCNXQY6TBSXM9NQDRS2CMX" />
+      <env name="AGENT_KEY" value="K5ZRZYYJ9GWM2FS6XH5N5QQ7WZRPNDGHYMN5QP7RP6PPY27KRPMSYGCN" />
       <env name="AGENT_NAME" value="Agent 1" />
       <env name="ALLOWED_RCON_PORTS" value="25575,27000,27001" />
       <env name="ALLOWED_SERVER_PORTS" value="25565,26000,26001" />
@@ -15,14 +15,19 @@
       <env name="MAX_MEMORY" value="12G" />
     </envs>
     <option name="USE_EXTERNAL_CONSOLE" value="0" />
+    <option name="ENV_FILE_PATHS" value="" />
+    <option name="REDIRECT_INPUT_PATH" value="" />
+    <option name="PTY_MODE" value="Auto" />
     <option name="USE_MONO" value="0" />
     <option name="RUNTIME_ARGUMENTS" value="" />
+    <option name="AUTO_ATTACH_CHILDREN" value="0" />
+    <option name="MIXED_MODE_DEBUG" value="0" />
     <option name="PROJECT_PATH" value="$PROJECT_DIR$/Agent/Phantom.Agent/Phantom.Agent.csproj" />
     <option name="PROJECT_EXE_PATH_TRACKING" value="1" />
     <option name="PROJECT_ARGUMENTS_TRACKING" value="1" />
     <option name="PROJECT_WORKING_DIRECTORY_TRACKING" value="0" />
     <option name="PROJECT_KIND" value="DotNetCore" />
-    <option name="PROJECT_TFM" value="net8.0" />
+    <option name="PROJECT_TFM" value="net9.0" />
     <method v="2">
       <option name="Build" />
     </method>

.run/Agent 2.run.xml

@@ -5,7 +5,7 @@
     <option name="WORKING_DIRECTORY" value="$PROJECT_DIR$/.workdir/Agent2" />
     <option name="PASS_PARENT_ENVS" value="1" />
     <envs>
-      <env name="AGENT_KEY" value="JXBQQYG5T267RQS75MXWBTCJZY5CKTCCGQY22MCZPHSQQSJYCHH2NG2TCNXQY6TBSXM9NQDRS2CMX" />
+      <env name="AGENT_KEY" value="K5ZRZYYJ9GWM2FS6XH5N5QQ7WZRPNDGHYMN5QP7RP6PPY27KRPMSYGCN" />
       <env name="AGENT_NAME" value="Agent 2" />
       <env name="ALLOWED_RCON_PORTS" value="27002-27006" />
       <env name="ALLOWED_SERVER_PORTS" value="26002-26006" />
@@ -15,14 +15,19 @@
       <env name="MAX_MEMORY" value="10G" />
     </envs>
     <option name="USE_EXTERNAL_CONSOLE" value="0" />
+    <option name="ENV_FILE_PATHS" value="" />
+    <option name="REDIRECT_INPUT_PATH" value="" />
+    <option name="PTY_MODE" value="Auto" />
     <option name="USE_MONO" value="0" />
     <option name="RUNTIME_ARGUMENTS" value="" />
+    <option name="AUTO_ATTACH_CHILDREN" value="0" />
+    <option name="MIXED_MODE_DEBUG" value="0" />
     <option name="PROJECT_PATH" value="$PROJECT_DIR$/Agent/Phantom.Agent/Phantom.Agent.csproj" />
     <option name="PROJECT_EXE_PATH_TRACKING" value="1" />
     <option name="PROJECT_ARGUMENTS_TRACKING" value="1" />
     <option name="PROJECT_WORKING_DIRECTORY_TRACKING" value="0" />
     <option name="PROJECT_KIND" value="DotNetCore" />
-    <option name="PROJECT_TFM" value="net8.0" />
+    <option name="PROJECT_TFM" value="net9.0" />
     <method v="2">
       <option name="Build" />
     </method>

.run/Agent 3.run.xml

@@ -5,7 +5,7 @@
     <option name="WORKING_DIRECTORY" value="$PROJECT_DIR$/.workdir/Agent3" />
     <option name="PASS_PARENT_ENVS" value="1" />
     <envs>
-      <env name="AGENT_KEY" value="JXBQQYG5T267RQS75MXWBTCJZY5CKTCCGQY22MCZPHSQQSJYCHH2NG2TCNXQY6TBSXM9NQDRS2CMX" />
+      <env name="AGENT_KEY" value="K5ZRZYYJ9GWM2FS6XH5N5QQ7WZRPNDGHYMN5QP7RP6PPY27KRPMSYGCN" />
       <env name="AGENT_NAME" value="Agent 3" />
       <env name="ALLOWED_RCON_PORTS" value="27007" />
       <env name="ALLOWED_SERVER_PORTS" value="26007" />
@@ -15,14 +15,19 @@
       <env name="MAX_MEMORY" value="2560M" />
     </envs>
     <option name="USE_EXTERNAL_CONSOLE" value="0" />
+    <option name="ENV_FILE_PATHS" value="" />
+    <option name="REDIRECT_INPUT_PATH" value="" />
+    <option name="PTY_MODE" value="Auto" />
     <option name="USE_MONO" value="0" />
     <option name="RUNTIME_ARGUMENTS" value="" />
+    <option name="AUTO_ATTACH_CHILDREN" value="0" />
+    <option name="MIXED_MODE_DEBUG" value="0" />
     <option name="PROJECT_PATH" value="$PROJECT_DIR$/Agent/Phantom.Agent/Phantom.Agent.csproj" />
     <option name="PROJECT_EXE_PATH_TRACKING" value="1" />
     <option name="PROJECT_ARGUMENTS_TRACKING" value="1" />
     <option name="PROJECT_WORKING_DIRECTORY_TRACKING" value="0" />
     <option name="PROJECT_KIND" value="DotNetCore" />
-    <option name="PROJECT_TFM" value="net8.0" />
+    <option name="PROJECT_TFM" value="net9.0" />
     <method v="2">
       <option name="Build" />
     </method>

.run/Controller.run.xml

@@ -14,14 +14,19 @@
       <env name="WEB_RPC_SERVER_HOST" value="localhost" />
     </envs>
     <option name="USE_EXTERNAL_CONSOLE" value="0" />
+    <option name="ENV_FILE_PATHS" value="" />
+    <option name="REDIRECT_INPUT_PATH" value="" />
+    <option name="PTY_MODE" value="Auto" />
     <option name="USE_MONO" value="0" />
     <option name="RUNTIME_ARGUMENTS" value="" />
+    <option name="AUTO_ATTACH_CHILDREN" value="0" />
+    <option name="MIXED_MODE_DEBUG" value="0" />
     <option name="PROJECT_PATH" value="$PROJECT_DIR$/Controller/Phantom.Controller/Phantom.Controller.csproj" />
     <option name="PROJECT_EXE_PATH_TRACKING" value="1" />
     <option name="PROJECT_ARGUMENTS_TRACKING" value="1" />
     <option name="PROJECT_WORKING_DIRECTORY_TRACKING" value="0" />
     <option name="PROJECT_KIND" value="DotNetCore" />
-    <option name="PROJECT_TFM" value="net8.0" />
+    <option name="PROJECT_TFM" value="net9.0" />
     <method v="2">
       <option name="Build" />
     </method>

.run/Web.run.xml

@@ -7,18 +7,23 @@
     <envs>
       <env name="ASPNETCORE_ENVIRONMENT" value="Development" />
       <env name="CONTROLLER_HOST" value="localhost" />
-      <env name="WEB_KEY" value="BMNHM9RRPMCBBY29D9XHS6KBKZSRY7F5XFN27YZX96XXWJC2NM2D6YRHM9PZN9JGQGCSJ6FMB2GGZ" />
+      <env name="WEB_KEY" value="T5Y722D2GZBXT2H27QS95P2YQRFB2GCTKHSWT5CZFDTFKW52TCM9GDRW" />
       <env name="WEB_SERVER_HOST" value="localhost" />
     </envs>
     <option name="USE_EXTERNAL_CONSOLE" value="0" />
+    <option name="ENV_FILE_PATHS" value="" />
+    <option name="REDIRECT_INPUT_PATH" value="" />
+    <option name="PTY_MODE" value="Auto" />
     <option name="USE_MONO" value="0" />
     <option name="RUNTIME_ARGUMENTS" value="" />
+    <option name="AUTO_ATTACH_CHILDREN" value="0" />
+    <option name="MIXED_MODE_DEBUG" value="0" />
     <option name="PROJECT_PATH" value="$PROJECT_DIR$/Web/Phantom.Web/Phantom.Web.csproj" />
     <option name="PROJECT_EXE_PATH_TRACKING" value="1" />
     <option name="PROJECT_ARGUMENTS_TRACKING" value="1" />
     <option name="PROJECT_WORKING_DIRECTORY_TRACKING" value="0" />
     <option name="PROJECT_KIND" value="DotNetCore" />
-    <option name="PROJECT_TFM" value="net8.0" />
+    <option name="PROJECT_TFM" value="net9.0" />
     <method v="2">
       <option name="Build" />
     </method>

.workdir/Controller/secrets/agent.auth

@@ -0,0 +1 @@
+满<EFBFBD>H<EFBFBD>c<EFBFBD>og<EFBFBD>

.workdir/Controller/secrets/agent.secret

@@ -1 +0,0 @@
-<EFBFBD>Z<EFBFBD>t<>MPI<49>GMZ<4D><5A><EFBFBD><EFBFBD>kN<6B>VF1X<><58>p

.workdir/Controller/secrets/web.auth

@@ -0,0 +1 @@
+<07>U<EFBFBD>/<2F><04><><EFBFBD>q

.workdir/Controller/secrets/web.key

@@ -1,2 +0,0 @@
-<EFBFBD><EFBFBD>h?Ο<05>Bx
-<02>

.workdir/Controller/secrets/web.secret

@@ -1 +0,0 @@
-T<EFBFBD>./g<11><>N<EFBFBD><4E>t<EFBFBD>$<24>!<21>(<28><>#<23>~<7E><>}<14><:

Agent/Phantom.Agent.Minecraft/Command/MinecraftCommand.cs

@@ -8,7 +8,7 @@ public static class MinecraftCommand {
 	public static string Say(string message) {
 		return "say " + message;
 	}
-
+	
 	public static string SaveAll(bool flush) {
 		return flush ? "save-all flush" : "save-all";
 	}

Agent/Phantom.Agent.Minecraft/Instance/InstanceProcess.cs

@@ -9,24 +9,24 @@ public sealed class InstanceProcess : IDisposable {
 	
 	private readonly RingBuffer<string> outputBuffer = new (100);
 	private event EventHandler<string>? OutputEvent;
-
+	
 	public event EventHandler? Ended;
 	public bool HasEnded { get; private set; }
-
+	
 	private readonly Process process;
 	private readonly TaskCompletionSource processExited = AsyncTasks.CreateCompletionSource();
-
+	
 	internal InstanceProcess(InstanceProperties instanceProperties, Process process) {
 		this.InstanceProperties = instanceProperties;
 		this.process = process;
 		this.process.Exited += ProcessOnExited;
 		this.process.OutputReceived += ProcessOutputReceived;
 	}
-
+	
 	public async Task SendCommand(string command, CancellationToken cancellationToken) {
 		await process.StandardInput.WriteLineAsync(command.AsMemory(), cancellationToken);
 	}
-
+	
 	public void AddOutputListener(EventHandler<string> listener, uint maxLinesToReadFromHistory = uint.MaxValue) {
 		OutputEvent += listener;
 		
@@ -34,31 +34,31 @@ public sealed class InstanceProcess : IDisposable {
 			listener(this, line);
 		}
 	}
-
+	
 	public void RemoveOutputListener(EventHandler<string> listener) {
 		OutputEvent -= listener;
 	}
-
+	
 	private void ProcessOutputReceived(object? sender, Process.Output output) {
 		outputBuffer.Add(output.Line);
 		OutputEvent?.Invoke(this, output.Line);
 	}
-
+	
 	private void ProcessOnExited(object? sender, EventArgs e) {
 		OutputEvent = null;
 		HasEnded = true;
 		Ended?.Invoke(this, EventArgs.Empty);
 		processExited.SetResult();
 	}
-
+	
 	public void Kill() {
 		process.Kill(true);
 	}
-
+	
 	public async Task WaitForExit(TimeSpan timeout) {
 		await processExited.Task.WaitAsync(timeout);
 	}
-
+	
 	public void Dispose() {
 		process.Dispose();
 		OutputEvent = null;

Agent/Phantom.Agent.Minecraft/Java/JavaPropertiesFileEditor.cs

@@ -5,13 +5,13 @@ namespace Phantom.Agent.Minecraft.Java;
 
 sealed class JavaPropertiesFileEditor {
 	private static readonly Encoding Encoding = Encoding.GetEncoding("ISO-8859-1");
-
+	
 	private readonly Dictionary<string, string> overriddenProperties = new ();
-
+	
 	public void Set(string key, string value) {
 		overriddenProperties[key] = value;
 	}
-
+	
 	public async Task EditOrCreate(string filePath) {
 		if (File.Exists(filePath)) {
 			string tmpFilePath = filePath + ".tmp";
@@ -23,37 +23,37 @@ sealed class JavaPropertiesFileEditor {
 			await EditFromCopyOrCreate(null, filePath);
 		}
 	}
-
+	
 	private async Task EditFromCopyOrCreate(string? sourceFilePath, string targetFilePath) {
 		var properties = new JavaProperties();
-
+		
 		if (sourceFilePath != null) {
 			// TODO replace with custom async parser
 			await using var sourceStream = new FileStream(sourceFilePath, FileMode.Open, FileAccess.Read, FileShare.Read);
 			properties.Load(sourceStream, Encoding);
 		}
-
+		
 		foreach (var (key, value) in overriddenProperties) {
 			properties[key] = value;
 		}
-
+		
 		await using var targetStream = new FileStream(targetFilePath, FileMode.Create, FileAccess.Write, FileShare.Read);
 		await using var targetWriter = new StreamWriter(targetStream, Encoding);
-
+		
 		await targetWriter.WriteLineAsync("# Properties");
-
+		
 		foreach (var (key, value) in properties) {
 			await WriteProperty(targetWriter, key, value);
 		}
 	}
-
+	
 	private static async Task WriteProperty(StreamWriter writer, string key, string value) {
 		await WritePropertyComponent(writer, key, escapeSpaces: true);
 		await writer.WriteAsync('=');
 		await WritePropertyComponent(writer, value, escapeSpaces: false);
 		await writer.WriteLineAsync();
 	}
-
+	
 	private static async Task WritePropertyComponent(TextWriter writer, string component, bool escapeSpaces) {
 		for (int index = 0; index < component.Length; index++) {
 			var c = component[index];

Agent/Phantom.Agent.Minecraft/Java/JavaRuntimeDiscovery.cs

@@ -8,17 +8,17 @@ namespace Phantom.Agent.Minecraft.Java;
 
 public sealed class JavaRuntimeDiscovery {
 	private static readonly ILogger Logger = PhantomLogger.Create(nameof(JavaRuntimeDiscovery));
-
+	
 	public static string? GetSystemSearchPath() {
 		const string LinuxJavaPath = "/usr/lib/jvm";
-
+		
 		if (OperatingSystem.IsLinux() && Directory.Exists(LinuxJavaPath)) {
 			return LinuxJavaPath;
 		}
-
+		
 		return null;
 	}
-
+	
 	public static IAsyncEnumerable<JavaRuntimeExecutable> Scan(string folderPath) {
 		return new JavaRuntimeDiscovery().ScanInternal(folderPath);
 	}
@@ -27,9 +27,9 @@ public sealed class JavaRuntimeDiscovery {
 	
 	private async IAsyncEnumerable<JavaRuntimeExecutable> ScanInternal(string folderPath) {
 		Logger.Information("Starting Java runtime scan in: {FolderPath}", folderPath);
-
+		
 		string javaExecutableName = OperatingSystem.IsWindows() ? "java.exe" : "java";
-
+		
 		foreach (var binFolderPath in Directory.EnumerateDirectories(Paths.ExpandTilde(folderPath), "bin", new EnumerationOptions {
 			MatchType = MatchType.Simple,
 			RecurseSubdirectories = true,
@@ -45,13 +45,13 @@ public sealed class JavaRuntimeDiscovery {
 			} catch (Exception) {
 				continue;
 			}
-
+			
 			if (javaExecutableAttributes.HasFlag(FileAttributes.ReparsePoint)) {
 				continue;
 			}
-
+			
 			Logger.Information("Found candidate Java executable: {JavaExecutablePath}", javaExecutablePath);
-
+			
 			JavaRuntime? foundRuntime;
 			try {
 				foundRuntime = await TryReadJavaRuntimeInformationFromProcess(javaExecutablePath);
@@ -62,17 +62,17 @@ public sealed class JavaRuntimeDiscovery {
 				Logger.Error(e, "Caught exception while reading Java version information.");
 				continue;
 			}
-
+			
 			if (foundRuntime == null) {
 				Logger.Error("Java executable did not output version information.");
 				continue;
 			}
-
+			
 			Logger.Information("Found Java {DisplayName} at: {Path}", foundRuntime.DisplayName, javaExecutablePath);
 			yield return new JavaRuntimeExecutable(javaExecutablePath, foundRuntime);
 		}
 	}
-
+	
 	private async Task<JavaRuntime?> TryReadJavaRuntimeInformationFromProcess(string javaExecutablePath) {
 		var startInfo = new ProcessStartInfo {
 			FileName = javaExecutablePath,
@@ -83,15 +83,15 @@ public sealed class JavaRuntimeDiscovery {
 			RedirectStandardError = true,
 			UseShellExecute = false
 		};
-
+		
 		var process = new Process { StartInfo = startInfo };
 		var cancellationTokenSource = new CancellationTokenSource(TimeSpan.FromSeconds(5));
-
+		
 		try {
 			process.Start();
-
+			
 			JavaRuntimeBuilder runtimeBuilder = new ();
-
+			
 			while (await process.StandardError.ReadLineAsync(cancellationTokenSource.Token) is {} line) {
 				ExtractJavaVersionPropertiesFromLine(line, runtimeBuilder);
 				
@@ -100,7 +100,7 @@ public sealed class JavaRuntimeDiscovery {
 					return runtime;
 				}
 			}
-
+			
 			await process.WaitForExitAsync(cancellationTokenSource.Token);
 			return null;
 		} finally {
@@ -108,15 +108,15 @@ public sealed class JavaRuntimeDiscovery {
 			cancellationTokenSource.Dispose();
 		}
 	}
-
+	
 	private static void ExtractJavaVersionPropertiesFromLine(ReadOnlySpan<char> line, JavaRuntimeBuilder runtimeBuilder) {
 		line = line.TrimStart();
-
+		
 		int separatorIndex = line.IndexOf('=');
 		if (separatorIndex == -1) {
 			return;
 		}
-
+		
 		var propertyName = line[..separatorIndex].TrimEnd();
 		if (propertyName.Equals("java.specification.version", StringComparison.Ordinal)) {
 			runtimeBuilder.MainVersion = ExtractValue(line, separatorIndex);
@@ -128,16 +128,16 @@ public sealed class JavaRuntimeDiscovery {
 			runtimeBuilder.Vendor = ExtractValue(line, separatorIndex);
 		}
 	}
-
+	
 	private static string ExtractValue(ReadOnlySpan<char> line, int separatorIndex) {
 		return line[(separatorIndex + 1)..].Trim().ToString();
 	}
-
+	
 	private sealed class JavaRuntimeBuilder {
 		public string? MainVersion { get; set; } = null;
 		public string? FullVersion { get; set; } = null;
 		public string? Vendor { get; set; } = null;
-
+		
 		public JavaRuntime? TryBuild(Dictionary<string, int> duplicateDisplayNames) {
 			if (MainVersion == null || FullVersion == null || Vendor == null) {
 				return null;

Agent/Phantom.Agent.Minecraft/Java/JavaRuntimeExecutable.cs

@@ -5,7 +5,7 @@ namespace Phantom.Agent.Minecraft.Java;
 public sealed class JavaRuntimeExecutable {
 	internal string ExecutablePath { get; }
 	internal JavaRuntime Runtime { get; }
-
+	
 	internal JavaRuntimeExecutable(string executablePath, JavaRuntime runtime) {
 		this.ExecutablePath = executablePath;
 		this.Runtime = runtime;

Agent/Phantom.Agent.Minecraft/Java/JavaRuntimeRepository.cs

@@ -9,7 +9,7 @@ public sealed class JavaRuntimeRepository {
 	private readonly Dictionary<string, Guid> guidsByPath = new ();
 	private readonly Dictionary<Guid, JavaRuntimeExecutable> runtimesByGuid = new ();
 	private readonly ReaderWriterLockSlim rwLock = new (LockRecursionPolicy.NoRecursion);
-
+	
 	public ImmutableArray<TaggedJavaRuntime> All {
 		get {
 			rwLock.EnterReadLock();
@@ -20,20 +20,20 @@ public sealed class JavaRuntimeRepository {
 			}
 		}
 	}
-
+	
 	public void Include(JavaRuntimeExecutable runtime) {
 		rwLock.EnterWriteLock();
 		try {
 			if (!guidsByPath.TryGetValue(runtime.ExecutablePath, out var guid)) {
 				guidsByPath[runtime.ExecutablePath] = guid = GenerateStableGuid(runtime.ExecutablePath);
 			}
-
+			
 			runtimesByGuid[guid] = runtime;
 		} finally {
 			rwLock.ExitWriteLock();
 		}
 	}
-
+	
 	public bool TryGetByGuid(Guid guid, [MaybeNullWhen(false)] out JavaRuntimeExecutable runtime) {
 		rwLock.EnterReadLock();
 		try {
@@ -42,7 +42,7 @@ public sealed class JavaRuntimeRepository {
 			rwLock.ExitReadLock();
 		}
 	}
-
+	
 	private static Guid GenerateStableGuid(string executablePath) {
 		Random rand = new Random(StableHashCode.ForString(executablePath));
 		Span<byte> bytes = stackalloc byte[16];

Agent/Phantom.Agent.Minecraft/Java/JvmArgumentBuilder.cs

@@ -5,24 +5,24 @@ namespace Phantom.Agent.Minecraft.Java;
 sealed class JvmArgumentBuilder {
 	private readonly JvmProperties basicProperties;
 	private readonly List<string> customArguments = new ();
-
+	
 	public JvmArgumentBuilder(JvmProperties basicProperties) {
 		this.basicProperties = basicProperties;
 	}
-
+	
 	public void Add(string argument) {
 		customArguments.Add(argument);
 	}
-
+	
 	public void AddProperty(string key, string value) {
 		customArguments.Add("-D" + key + "=\"" + value + "\""); // TODO test quoting?
 	}
-
+	
 	public void Build(Collection<string> target) {
 		foreach (var property in customArguments) {
 			target.Add(property);
 		}
-
+		
 		// In case of duplicate JVM arguments, typically the last one wins.
 		target.Add("-Xms" + basicProperties.InitialHeapMegabytes + "M");
 		target.Add("-Xmx" + basicProperties.MaximumHeapMegabytes + "M");

Agent/Phantom.Agent.Minecraft/Launcher/BaseLauncher.cs

@@ -1,5 +1,4 @@
-using System.Collections.ObjectModel;
-using System.Text;
+using System.Text;
 using Phantom.Agent.Minecraft.Instance;
 using Phantom.Agent.Minecraft.Java;
 using Phantom.Agent.Minecraft.Server;
@@ -10,24 +9,23 @@ namespace Phantom.Agent.Minecraft.Launcher;
 
 public abstract class BaseLauncher : IServerLauncher {
 	private readonly InstanceProperties instanceProperties;
-
+	
 	protected string MinecraftVersion => instanceProperties.ServerVersion;
-	protected string InstanceFolder => instanceProperties.InstanceFolder;
-
+	
 	private protected BaseLauncher(InstanceProperties instanceProperties) {
 		this.instanceProperties = instanceProperties;
 	}
-
+	
 	public async Task<LaunchResult> Launch(ILogger logger, LaunchServices services, EventHandler<DownloadProgressEventArgs> downloadProgressEventHandler, CancellationToken cancellationToken) {
 		if (!services.JavaRuntimeRepository.TryGetByGuid(instanceProperties.JavaRuntimeGuid, out var javaRuntimeExecutable)) {
 			return new LaunchResult.InvalidJavaRuntime();
 		}
-
+		
 		var vanillaServerJarPath = await services.ServerExecutables.DownloadAndGetPath(instanceProperties.LaunchProperties.ServerDownloadInfo, MinecraftVersion, downloadProgressEventHandler, cancellationToken);
 		if (vanillaServerJarPath == null) {
 			return new LaunchResult.CouldNotDownloadMinecraftServer();
 		}
-
+		
 		ServerJarInfo? serverJar;
 		try {
 			serverJar = await PrepareServerJar(logger, vanillaServerJarPath, cancellationToken);
@@ -37,12 +35,12 @@ public abstract class BaseLauncher : IServerLauncher {
 			logger.Error(e, "Caught exception while preparing the server jar.");
 			return new LaunchResult.CouldNotPrepareMinecraftServerLauncher();
 		}
-
+		
 		if (!File.Exists(serverJar.FilePath)) {
 			logger.Error("Missing prepared server or launcher jar: {FilePath}", serverJar.FilePath);
 			return new LaunchResult.CouldNotPrepareMinecraftServerLauncher();
 		}
-
+		
 		try {
 			await AcceptEula(instanceProperties);
 			await UpdateServerProperties(instanceProperties);
@@ -53,18 +51,20 @@ public abstract class BaseLauncher : IServerLauncher {
 		
 		var processConfigurator = new ProcessConfigurator {
 			FileName = javaRuntimeExecutable.ExecutablePath,
-			WorkingDirectory = InstanceFolder,
+			WorkingDirectory = instanceProperties.InstanceFolder,
 			RedirectInput = true,
 			UseShellExecute = false
 		};
 		
 		var processArguments = processConfigurator.ArgumentList;
 		PrepareJvmArguments(serverJar).Build(processArguments);
-		PrepareJavaProcessArguments(processArguments, serverJar.FilePath);
-
+		processArguments.Add("-jar");
+		processArguments.Add(serverJar.FilePath);
+		processArguments.Add("nogui");
+		
 		var process = processConfigurator.CreateProcess();
 		var instanceProcess = new InstanceProcess(instanceProperties, process);
-
+		
 		try {
 			process.Start();
 		} catch (Exception launchException) {
@@ -75,45 +75,39 @@ public abstract class BaseLauncher : IServerLauncher {
 			} catch (Exception killException) {
 				logger.Error(killException, "Caught exception trying to kill the server process after a failed launch.");
 			}
-
+			
 			return new LaunchResult.CouldNotStartMinecraftServer();
 		}
-
+		
 		return new LaunchResult.Success(instanceProcess);
 	}
-
+	
 	private JvmArgumentBuilder PrepareJvmArguments(ServerJarInfo serverJar) {
 		var builder = new JvmArgumentBuilder(instanceProperties.JvmProperties);
-
+		
 		foreach (string argument in instanceProperties.JvmArguments) {
 			builder.Add(argument);
 		}
-
+		
 		foreach (var argument in serverJar.ExtraArgs) {
 			builder.Add(argument);
 		}
-
+		
 		CustomizeJvmArguments(builder);
 		return builder;
 	}
-
+	
 	private protected virtual void CustomizeJvmArguments(JvmArgumentBuilder arguments) {}
-
-	protected virtual void PrepareJavaProcessArguments(Collection<string> processArguments, string serverJarFilePath) {
-		processArguments.Add("-jar");
-		processArguments.Add(serverJarFilePath);
-		processArguments.Add("nogui");
-	}
-
+	
 	private protected virtual Task<ServerJarInfo> PrepareServerJar(ILogger logger, string serverJarPath, CancellationToken cancellationToken) {
 		return Task.FromResult(new ServerJarInfo(serverJarPath));
 	}
-
+	
 	private static async Task AcceptEula(InstanceProperties instanceProperties) {
 		var eulaFilePath = Path.Combine(instanceProperties.InstanceFolder, "eula.txt");
-		await File.WriteAllLinesAsync(eulaFilePath, new [] { "# EULA", "eula=true" }, Encoding.UTF8);
+		await File.WriteAllLinesAsync(eulaFilePath, new[] { "# EULA", "eula=true" }, Encoding.UTF8);
 	}
-
+	
 	private static async Task UpdateServerProperties(InstanceProperties instanceProperties) {
 		var serverPropertiesEditor = new JavaPropertiesFileEditor();
 		instanceProperties.ServerProperties.SetTo(serverPropertiesEditor);

Agent/Phantom.Agent.Minecraft/Launcher/LaunchResult.cs

@@ -4,11 +4,11 @@ namespace Phantom.Agent.Minecraft.Launcher;
 
 public abstract record LaunchResult {
 	private LaunchResult() {}
-
+	
 	public sealed record Success(InstanceProcess Process) : LaunchResult;
-
+	
 	public sealed record InvalidJavaRuntime : LaunchResult;
-
+	
 	public sealed record CouldNotDownloadMinecraftServer : LaunchResult;
 	
 	public sealed record CouldNotPrepareMinecraftServerLauncher : LaunchResult;

Agent/Phantom.Agent.Minecraft/Launcher/Types/FabricLauncher.cs

@@ -19,10 +19,10 @@ public sealed class FabricLauncher : BaseLauncher {
 		if (!File.Exists(launcherJarPath)) {
 			await DownloadLauncher(logger, launcherJarPath, cancellationToken);
 		}
-
+		
 		return new ServerJarInfo(launcherJarPath, ImmutableArray.Create("-Dfabric.installer.server.gameJar=" + Paths.NormalizeSlashes(serverJarPath)));
 	}
-
+	
 	private async Task DownloadLauncher(ILogger logger, string targetFilePath, CancellationToken cancellationToken) {
 		// TODO customizable loader version, probably with a dedicated temporary folder
 		string installerUrl = $"https://meta.fabricmc.net/v2/versions/loader/{MinecraftVersion}/stable/stable/server/jar";
@@ -42,7 +42,7 @@ public sealed class FabricLauncher : BaseLauncher {
 			throw;
 		}
 	}
-
+	
 	private static void TryDeleteLauncherAfterFailure(ILogger logger, string filePath) {
 		if (File.Exists(filePath)) {
 			try {

Agent/Phantom.Agent.Minecraft/Launcher/Types/ForgeLauncher.cs

@@ -1,29 +0,0 @@
-using System.Collections.ObjectModel;
-using Phantom.Agent.Minecraft.Instance;
-using Phantom.Agent.Minecraft.Java;
-using Serilog;
-
-namespace Phantom.Agent.Minecraft.Launcher.Types; 
-
-public sealed class ForgeLauncher : BaseLauncher {
-	public ForgeLauncher(InstanceProperties instanceProperties) : base(instanceProperties) {}
-	
-	private protected override void CustomizeJvmArguments(JvmArgumentBuilder arguments) {
-		arguments.AddProperty("terminal.ansi", "true"); // TODO
-	}
-
-	protected override void PrepareJavaProcessArguments(Collection<string> processArguments, string serverJarFilePath) {
-		if (OperatingSystem.IsWindows()) {
-			processArguments.Add("@libraries/net/minecraftforge/forge/1.20.1-47.2.0/win_args.txt");
-		}
-		else {
-			processArguments.Add("@libraries/net/minecraftforge/forge/1.20.1-47.2.0/unix_args.txt");
-		}
-		
-		processArguments.Add("nogui");
-	}
-
-	private protected override Task<ServerJarInfo> PrepareServerJar(ILogger logger, string serverJarPath, CancellationToken cancellationToken) {
-		return Task.FromResult(new ServerJarInfo(Path.Combine(InstanceFolder, "run.sh")));
-	}
-}

Agent/Phantom.Agent.Minecraft/Properties/MinecraftServerProperties.cs

@@ -14,7 +14,7 @@ static class MinecraftServerProperties {
 		protected override ushort Read(string value) => ushort.Parse(value);
 		protected override string Write(ushort value) => value.ToString();
 	}
-
+	
 	public static readonly MinecraftServerProperty<ushort> ServerPort = new UnsignedShort("server-port");
 	public static readonly MinecraftServerProperty<ushort> RconPort = new UnsignedShort("rcon.port");
 	public static readonly MinecraftServerProperty<bool> EnableRcon = new Boolean("enable-rcon");

Agent/Phantom.Agent.Minecraft/Properties/MinecraftServerProperty.cs

@@ -4,14 +4,14 @@ namespace Phantom.Agent.Minecraft.Properties;
 
 abstract class MinecraftServerProperty<T> {
 	private readonly string key;
-
+	
 	protected MinecraftServerProperty(string key) {
 		this.key = key;
 	}
 	
 	protected abstract T Read(string value);
 	protected abstract string Write(T value);
-
+	
 	public void Set(JavaPropertiesFileEditor properties, T value) {
 		properties.Set(key, Write(value));
 	}

Agent/Phantom.Agent.Minecraft/Server/MinecraftServerExecutableDownloader.cs

@@ -10,7 +10,7 @@ namespace Phantom.Agent.Minecraft.Server;
 
 sealed class MinecraftServerExecutableDownloader {
 	private static readonly ILogger Logger = PhantomLogger.Create<MinecraftServerExecutableDownloader>();
-
+	
 	public Task<string?> Task { get; }
 	public event EventHandler<DownloadProgressEventArgs>? DownloadProgress;
 	public event EventHandler? Completed;
@@ -19,13 +19,13 @@ sealed class MinecraftServerExecutableDownloader {
 	
 	private readonly List<CancellationTokenRegistration> listenerCancellationRegistrations = new ();
 	private int listenerCount = 0;
-
+	
 	public MinecraftServerExecutableDownloader(FileDownloadInfo fileDownloadInfo, string minecraftVersion, string filePath, MinecraftServerExecutableDownloadListener listener) {
 		Register(listener);
 		Task = DownloadAndGetPath(fileDownloadInfo, minecraftVersion, filePath, new DownloadProgressCallback(this), cancellationTokenSource.Token);
 		Task.ContinueWith(OnCompleted, TaskScheduler.Default);
 	}
-
+	
 	public void Register(MinecraftServerExecutableDownloadListener listener) {
 		int newListenerCount;
 		
@@ -38,14 +38,14 @@ sealed class MinecraftServerExecutableDownloader {
 		
 		Logger.Debug("Registered download listener, current listener count: {Listeners}", newListenerCount);
 	}
-
+	
 	private void Unregister(object? listenerObject) {
 		int newListenerCount;
 		
 		lock (this) {
 			MinecraftServerExecutableDownloadListener listener = (MinecraftServerExecutableDownloadListener) listenerObject!;
 			DownloadProgress -= listener.DownloadProgressEventHandler;
-
+			
 			newListenerCount = --listenerCount;
 			if (newListenerCount <= 0) {
 				cancellationTokenSource.Cancel();
@@ -59,19 +59,19 @@ sealed class MinecraftServerExecutableDownloader {
 			Logger.Debug("Unregistered download listener, current listener count: {Listeners}", newListenerCount);
 		}
 	}
-
+	
 	private void ReportDownloadProgress(DownloadProgressEventArgs args) {
 		DownloadProgress?.Invoke(this, args);
 	}
-
+	
 	private void OnCompleted(Task task) {
 		Logger.Debug("Download task completed.");
-
+		
 		lock (this) {
 			Completed?.Invoke(this, EventArgs.Empty);
 			Completed = null;
 			DownloadProgress = null;
-
+			
 			foreach (var registration in listenerCancellationRegistrations) {
 				registration.Dispose();
 			}
@@ -80,22 +80,22 @@ sealed class MinecraftServerExecutableDownloader {
 			cancellationTokenSource.Dispose();
 		}
 	}
-
+	
 	private sealed class DownloadProgressCallback {
 		private readonly MinecraftServerExecutableDownloader downloader;
-
+		
 		public DownloadProgressCallback(MinecraftServerExecutableDownloader downloader) {
 			this.downloader = downloader;
 		}
-
+		
 		public void ReportProgress(ulong downloadedBytes, ulong totalBytes) {
 			downloader.ReportDownloadProgress(new DownloadProgressEventArgs(downloadedBytes, totalBytes));
 		}
 	}
-
+	
 	private static async Task<string?> DownloadAndGetPath(FileDownloadInfo fileDownloadInfo, string minecraftVersion, string filePath, DownloadProgressCallback progressCallback, CancellationToken cancellationToken) {
 		string tmpFilePath = filePath + ".tmp";
-
+		
 		try {
 			Logger.Information("Downloading server version {Version} from: {Url} ({Size})", minecraftVersion, fileDownloadInfo.DownloadUrl, fileDownloadInfo.Size.ToHumanReadable(decimalPlaces: 1));
 			try {
@@ -105,10 +105,10 @@ sealed class MinecraftServerExecutableDownloader {
 				TryDeleteExecutableAfterFailure(tmpFilePath);
 				throw;
 			}
-
+			
 			File.Move(tmpFilePath, filePath, true);
 			Logger.Information("Server version {Version} downloaded.", minecraftVersion);
-
+			
 			return filePath;
 		} catch (OperationCanceledException) {
 			Logger.Information("Download for server version {Version} was cancelled.", minecraftVersion);
@@ -120,17 +120,17 @@ sealed class MinecraftServerExecutableDownloader {
 			return null;
 		}
 	}
-
+	
 	private static async Task FetchServerExecutableFile(HttpClient http, DownloadProgressCallback progressCallback, FileDownloadInfo fileDownloadInfo, string filePath, CancellationToken cancellationToken) {
 		Sha1String downloadedFileHash;
-
+		
 		try {
 			var response = await http.GetAsync(fileDownloadInfo.DownloadUrl, HttpCompletionOption.ResponseHeadersRead, cancellationToken);
 			response.EnsureSuccessStatusCode();
-
+			
 			await using var fileStream = new FileStream(filePath, FileMode.CreateNew, FileAccess.Write, FileShare.Read);
 			await using var responseStream = await response.Content.ReadAsStreamAsync(cancellationToken);
-
+			
 			using var streamCopier = new MinecraftServerDownloadStreamCopier(progressCallback, fileDownloadInfo.Size.Bytes);
 			downloadedFileHash = await streamCopier.Copy(responseStream, fileStream, cancellationToken);
 		} catch (OperationCanceledException) {
@@ -139,13 +139,13 @@ sealed class MinecraftServerExecutableDownloader {
 			Logger.Error(e, "Unable to download server executable.");
 			throw StopProcedureException.Instance;
 		}
-
+		
 		if (!downloadedFileHash.Equals(fileDownloadInfo.Hash)) {
 			Logger.Error("Downloaded server executable has mismatched SHA1 hash. Expected {Expected}, got {Actual}.", fileDownloadInfo.Hash, downloadedFileHash);
 			throw StopProcedureException.Instance;
 		}
 	}
-
+	
 	private static void TryDeleteExecutableAfterFailure(string filePath) {
 		if (File.Exists(filePath)) {
 			try {
@@ -155,33 +155,33 @@ sealed class MinecraftServerExecutableDownloader {
 			}
 		}
 	}
-
+	
 	private sealed class MinecraftServerDownloadStreamCopier : IDisposable {
 		private readonly StreamCopier streamCopier = new ();
 		private readonly IncrementalHash sha1 = IncrementalHash.CreateHash(HashAlgorithmName.SHA1);
-
+		
 		private readonly DownloadProgressCallback progressCallback;
 		private readonly ulong totalBytes;
 		private ulong readBytes;
-
+		
 		public MinecraftServerDownloadStreamCopier(DownloadProgressCallback progressCallback, ulong totalBytes) {
 			this.progressCallback = progressCallback;
 			this.totalBytes = totalBytes;
 			this.streamCopier.BufferReady += OnBufferReady;
 		}
-
+		
 		private void OnBufferReady(object? sender, StreamCopier.BufferEventArgs args) {
 			sha1.AppendData(args.Buffer.Span);
-
+			
 			readBytes += (uint) args.Buffer.Length;
 			progressCallback.ReportProgress(readBytes, totalBytes);
 		}
-
+		
 		public async Task<Sha1String> Copy(Stream source, Stream destination, CancellationToken cancellationToken) {
 			await streamCopier.Copy(source, destination, cancellationToken);
 			return Sha1String.FromBytes(sha1.GetHashAndReset());
 		}
-
+		
 		public void Dispose() {
 			sha1.Dispose();
 			streamCopier.Dispose();

Agent/Phantom.Agent.Minecraft/Server/MinecraftServerExecutables.cs

@@ -8,40 +8,40 @@ namespace Phantom.Agent.Minecraft.Server;
 
 public sealed partial class MinecraftServerExecutables {
 	private static readonly ILogger Logger = PhantomLogger.Create<MinecraftServerExecutables>();
-
+	
 	[GeneratedRegex(@"[^a-zA-Z0-9_\-\.]", RegexOptions.Compiled)]
 	private static partial Regex SanitizePathRegex();
-
+	
 	private readonly string basePath;
 	private readonly Dictionary<string, MinecraftServerExecutableDownloader> runningDownloadersByVersion = new ();
-
+	
 	public MinecraftServerExecutables(string basePath) {
 		this.basePath = basePath;
 	}
-
+	
 	internal async Task<string?> DownloadAndGetPath(FileDownloadInfo? fileDownloadInfo, string minecraftVersion, EventHandler<DownloadProgressEventArgs> progressEventHandler, CancellationToken cancellationToken) {
 		string serverExecutableFolderPath = Path.Combine(basePath, SanitizePathRegex().IsMatch(minecraftVersion) ? SanitizePathRegex().Replace(minecraftVersion, "_") : minecraftVersion);
 		string serverExecutableFilePath = Path.Combine(serverExecutableFolderPath, "server.jar");
-
+		
 		if (File.Exists(serverExecutableFilePath)) {
 			return serverExecutableFilePath;
 		}
-
+		
 		if (fileDownloadInfo == null) {
 			Logger.Error("Unable to download server executable for version {Version} because no download info was provided.", minecraftVersion);
 			return null;
 		}
-
+		
 		try {
 			Directories.Create(serverExecutableFolderPath, Chmod.URWX_GRX);
 		} catch (Exception e) {
 			Logger.Error(e, "Unable to create folder for server executable: {ServerExecutableFolderPath}", serverExecutableFolderPath);
 			return null;
 		}
-
+		
 		MinecraftServerExecutableDownloader? downloader;
 		MinecraftServerExecutableDownloadListener listener = new (progressEventHandler, cancellationToken);
-
+		
 		lock (this) {
 			if (runningDownloadersByVersion.TryGetValue(minecraftVersion, out downloader)) {
 				Logger.Information("A download for server version {Version} is already running, waiting for it to finish...", minecraftVersion);
@@ -54,11 +54,11 @@ public sealed partial class MinecraftServerExecutables {
 						runningDownloadersByVersion.Remove(minecraftVersion);
 					}
 				};
-
+				
 				runningDownloadersByVersion[minecraftVersion] = downloader;
 			}
 		}
-
+		
 		return await downloader.Task.WaitAsync(cancellationToken);
 	}
 }

Agent/Phantom.Agent.Minecraft/Server/ServerStatusProtocol.cs

@@ -16,20 +16,20 @@ public static class ServerStatusProtocol {
 		// https://wiki.vg/Server_List_Ping
 		tcpStream.WriteByte(0xFE);
 		await tcpStream.FlushAsync(cancellationToken);
-
+		
 		short messageLength = await ReadStreamHeader(tcpStream, cancellationToken);
 		return await ReadPlayerCounts(tcpStream, messageLength * 2, cancellationToken);
 	}
-
+	
 	private static async Task<short> ReadStreamHeader(NetworkStream tcpStream, CancellationToken cancellationToken) {
 		var headerBuffer = ArrayPool<byte>.Shared.Rent(3);
 		try {
 			await tcpStream.ReadExactlyAsync(headerBuffer, 0, 3, cancellationToken);
-
+			
 			if (headerBuffer[0] != 0xFF) {
 				throw new ProtocolException("Unexpected first byte in response from server: " + headerBuffer[0]);
 			}
-
+			
 			short messageLength = BinaryPrimitives.ReadInt16BigEndian(headerBuffer.AsSpan(1));
 			if (messageLength <= 0) {
 				throw new ProtocolException("Unexpected message length in response from server: " + messageLength);
@@ -40,7 +40,7 @@ public static class ServerStatusProtocol {
 			ArrayPool<byte>.Shared.Return(headerBuffer);
 		}
 	}
-
+	
 	private static async Task<InstancePlayerCounts> ReadPlayerCounts(NetworkStream tcpStream, int messageLength, CancellationToken cancellationToken) {
 		var messageBuffer = ArrayPool<byte>.Shared.Rent(messageLength);
 		try {
@@ -63,7 +63,7 @@ public static class ServerStatusProtocol {
 		if (lastSeparator == -1 || middleSeparator == -1) {
 			throw new ProtocolException("Could not find message separators in response from server.");
 		}
-
+		
 		var onlinePlayerCountBuffer = messageBuffer[(middleSeparator + Separator.Length)..lastSeparator];
 		var maximumPlayerCountBuffer = messageBuffer[(lastSeparator + Separator.Length)..];
 		

Agent/Phantom.Agent.Rpc/ControllerConnection.cs

@@ -1,21 +0,0 @@
-using Phantom.Common.Messages.Agent;
-using Phantom.Utils.Logging;
-using Phantom.Utils.Rpc.Runtime;
-using Serilog;
-
-namespace Phantom.Agent.Rpc;
-
-public sealed class ControllerConnection {
-	private static readonly ILogger Logger = PhantomLogger.Create(nameof(ControllerConnection));
-
-	private readonly RpcConnectionToServer<IMessageToController> connection;
-	
-	public ControllerConnection(RpcConnectionToServer<IMessageToController> connection) {
-		this.connection = connection;
-		Logger.Information("Connection ready.");
-	}
-
-	public Task Send<TMessage>(TMessage message) where TMessage : IMessageToController {
-		return connection.Send(message);
-	}
-}

Agent/Phantom.Agent.Rpc/KeepAliveLoop.cs

@@ -1,44 +0,0 @@
-using Phantom.Common.Messages.Agent;
-using Phantom.Common.Messages.Agent.ToController;
-using Phantom.Utils.Logging;
-using Phantom.Utils.Rpc.Runtime;
-using Serilog;
-
-namespace Phantom.Agent.Rpc;
-
-sealed class KeepAliveLoop {
-	private static readonly ILogger Logger = PhantomLogger.Create<KeepAliveLoop>();
-
-	private static readonly TimeSpan KeepAliveInterval = TimeSpan.FromSeconds(10);
-
-	private readonly RpcConnectionToServer<IMessageToController> connection;
-	private readonly CancellationTokenSource cancellationTokenSource = new ();
-
-	public KeepAliveLoop(RpcConnectionToServer<IMessageToController> connection) {
-		this.connection = connection;
-		Task.Run(Run);
-	}
-
-	private async Task Run() {
-		var cancellationToken = cancellationTokenSource.Token;
-		
-		try {
-			await connection.IsReady.WaitAsync(cancellationToken);
-			Logger.Information("Started keep-alive loop.");
-			
-			while (true) {
-				await Task.Delay(KeepAliveInterval, cancellationToken);
-				await connection.Send(new AgentIsAliveMessage()).WaitAsync(cancellationToken);
-			}
-		} catch (OperationCanceledException) {
-			// Ignore.
-		} finally {
-			cancellationTokenSource.Dispose();
-			Logger.Information("Stopped keep-alive loop.");
-		}
-	}
-
-	public void Cancel() {
-		cancellationTokenSource.Cancel();
-	}
-}

Agent/Phantom.Agent.Rpc/Phantom.Agent.Rpc.csproj

@@ -1,12 +0,0 @@
-<Project Sdk="Microsoft.NET.Sdk">
-  
-  <PropertyGroup>
-    <ImplicitUsings>enable</ImplicitUsings>
-    <Nullable>enable</Nullable>
-  </PropertyGroup>
-  
-  <ItemGroup>
-    <ProjectReference Include="..\..\Common\Phantom.Common.Messages.Agent\Phantom.Common.Messages.Agent.csproj" />
-  </ItemGroup>
-
-</Project>

Agent/Phantom.Agent.Rpc/RpcClientRuntime.cs

@@ -1,37 +0,0 @@
-using NetMQ;
-using NetMQ.Sockets;
-using Phantom.Common.Messages.Agent;
-using Phantom.Common.Messages.Agent.BiDirectional;
-using Phantom.Common.Messages.Agent.ToController;
-using Phantom.Utils.Actor;
-using Phantom.Utils.Rpc.Runtime;
-using Phantom.Utils.Rpc.Sockets;
-using Serilog;
-
-namespace Phantom.Agent.Rpc;
-
-public sealed class RpcClientRuntime : RpcClientRuntime<IMessageToAgent, IMessageToController, ReplyMessage> {
-	public static Task Launch(RpcClientSocket<IMessageToAgent, IMessageToController, ReplyMessage> socket, ActorRef<IMessageToAgent> handlerActorRef, SemaphoreSlim disconnectSemaphore, CancellationToken receiveCancellationToken) {
-		return new RpcClientRuntime(socket, handlerActorRef, disconnectSemaphore, receiveCancellationToken).Launch();
-	}
-
-	private RpcClientRuntime(RpcClientSocket<IMessageToAgent, IMessageToController, ReplyMessage> socket, ActorRef<IMessageToAgent> handlerActor, SemaphoreSlim disconnectSemaphore, CancellationToken receiveCancellationToken) : base(socket, handlerActor, disconnectSemaphore, receiveCancellationToken) {}
-
-	protected override async Task RunWithConnection(ClientSocket socket, RpcConnectionToServer<IMessageToController> connection) {
-		var keepAliveLoop = new KeepAliveLoop(connection);
-		try {
-			await base.RunWithConnection(socket, connection);
-		} finally {
-			keepAliveLoop.Cancel();
-		}
-	}
-
-	protected override async Task SendDisconnectMessage(ClientSocket socket, ILogger logger) {
-		var unregisterMessageBytes = AgentMessageRegistries.ToController.Write(new UnregisterAgentMessage()).ToArray();
-		try {
-			await socket.SendAsync(unregisterMessageBytes).AsTask().WaitAsync(TimeSpan.FromSeconds(5), CancellationToken.None);
-		} catch (TimeoutException) {
-			logger.Error("Timed out communicating agent shutdown with the controller.");
-		}
-	}
-}

Agent/Phantom.Agent.Services/AgentFolders.cs

@@ -6,16 +6,16 @@ namespace Phantom.Agent.Services;
 
 public sealed class AgentFolders {
 	private static readonly ILogger Logger = PhantomLogger.Create<AgentFolders>();
-
+	
 	public string DataFolderPath { get; }
 	public string InstancesFolderPath { get; }
 	public string BackupsFolderPath { get; }
-
+	
 	public string TemporaryFolderPath { get; }
 	public string ServerExecutableFolderPath { get; }
-
+	
 	public string JavaSearchFolderPath { get; }
-
+	
 	public AgentFolders(string dataFolderPath, string temporaryFolderPath, string javaSearchFolderPath) {
 		this.DataFolderPath = Path.GetFullPath(dataFolderPath);
 		this.InstancesFolderPath = Path.Combine(DataFolderPath, "instances");
@@ -26,7 +26,7 @@ public sealed class AgentFolders {
 		
 		this.JavaSearchFolderPath = javaSearchFolderPath;
 	}
-
+	
 	public bool TryCreate() {
 		return TryCreateFolder(DataFolderPath) &&
 		       TryCreateFolder(InstancesFolderPath) &&
@@ -34,12 +34,12 @@ public sealed class AgentFolders {
 		       TryCreateFolder(TemporaryFolderPath) &&
 		       TryCreateFolder(ServerExecutableFolderPath);
 	}
-
+	
 	private static bool TryCreateFolder(string folderPath) {
 		if (Directory.Exists(folderPath)) {
 			return true;
 		}
-
+		
 		try {
 			Directories.Create(folderPath, Chmod.URWX_GRX);
 			return true;

Agent/Phantom.Agent.Services/AgentServices.cs

@@ -1,9 +1,13 @@
-using Akka.Actor;
+using System.Collections.Immutable;
+using Akka.Actor;
 using Phantom.Agent.Minecraft.Java;
-using Phantom.Agent.Rpc;
 using Phantom.Agent.Services.Backups;
 using Phantom.Agent.Services.Instances;
+using Phantom.Agent.Services.Rpc;
 using Phantom.Common.Data.Agent;
+using Phantom.Common.Data.Replies;
+using Phantom.Common.Messages.Agent.ToAgent;
+using Phantom.Common.Messages.Agent.ToController;
 using Phantom.Utils.Actor;
 using Phantom.Utils.Logging;
 using Serilog;
@@ -14,18 +18,20 @@ public sealed class AgentServices {
 	private static readonly ILogger Logger = PhantomLogger.Create<AgentServices>();
 	
 	public ActorSystem ActorSystem { get; }
-
+	
+	private AgentInfo AgentInfo { get; }
 	private AgentFolders AgentFolders { get; }
 	private AgentState AgentState { get; }
 	private BackupManager BackupManager { get; }
-
+	
 	internal JavaRuntimeRepository JavaRuntimeRepository { get; }
 	internal InstanceTicketManager InstanceTicketManager { get; }
 	internal ActorRef<InstanceManagerActor.ICommand> InstanceManager { get; }
-
+	
 	public AgentServices(AgentInfo agentInfo, AgentFolders agentFolders, AgentServiceConfiguration serviceConfiguration, ControllerConnection controllerConnection) {
 		this.ActorSystem = ActorSystemFactory.Create("Agent");
 		
+		this.AgentInfo = agentInfo;
 		this.AgentFolders = agentFolders;
 		this.AgentState = new AgentState();
 		this.BackupManager = new BackupManager(agentFolders, serviceConfiguration.MaxConcurrentCompressionTasks);
@@ -36,13 +42,46 @@ public sealed class AgentServices {
 		var instanceManagerInit = new InstanceManagerActor.Init(controllerConnection, agentFolders, AgentState, JavaRuntimeRepository, InstanceTicketManager, BackupManager);
 		this.InstanceManager = ActorSystem.ActorOf(InstanceManagerActor.Factory(instanceManagerInit), "InstanceManager");
 	}
-
+	
 	public async Task Initialize() {
 		await foreach (var runtime in JavaRuntimeDiscovery.Scan(AgentFolders.JavaSearchFolderPath)) {
 			JavaRuntimeRepository.Include(runtime);
 		}
 	}
-
+	
+	public  async Task<bool> Register(ControllerConnection connection, CancellationToken cancellationToken) {
+		Logger.Information("Registering with the controller...");
+		
+		ImmutableArray<ConfigureInstanceMessage> configureInstanceMessages;
+		try {
+			configureInstanceMessages = await connection.Send<RegisterAgentMessage, ImmutableArray<ConfigureInstanceMessage>>(new RegisterAgentMessage(AgentInfo), TimeSpan.FromMinutes(1), cancellationToken);
+		} catch (Exception e) {
+			Logger.Fatal(e, "Registration failed.");
+			return false;
+		}
+		
+		foreach (var configureInstanceMessage in configureInstanceMessages) {
+			var configureInstanceCommand = new InstanceManagerActor.ConfigureInstanceCommand(
+				configureInstanceMessage.InstanceGuid,
+				configureInstanceMessage.Configuration,
+				configureInstanceMessage.LaunchProperties,
+				configureInstanceMessage.LaunchNow,
+				AlwaysReportStatus: true
+			);
+			
+			var configureInstanceResult = await InstanceManager.Request(configureInstanceCommand, cancellationToken);
+			if (!configureInstanceResult.Is(ConfigureInstanceResult.Success)) {
+				Logger.Fatal("Unable to configure instance \"{Name}\" (GUID {Guid}), shutting down.", configureInstanceMessage.Configuration.InstanceName, configureInstanceMessage.InstanceGuid);
+				return false;
+			}
+		}
+		
+		await connection.Send(new AdvertiseJavaRuntimesMessage(JavaRuntimeRepository.All), cancellationToken);
+		InstanceTicketManager.RefreshAgentStatus();
+		
+		return true;
+	}
+	
 	public async Task Shutdown() {
 		Logger.Information("Stopping services...");
 		

Agent/Phantom.Agent.Services/Backups/BackupArchiver.cs

@@ -23,9 +23,9 @@ sealed class BackupArchiver {
 		this.instanceProperties = instanceProperties;
 		this.cancellationToken = cancellationToken;
 	}
-
+	
 	private bool IsFolderSkipped(ImmutableList<string> relativePath) {
-		return relativePath is ["cache" or "crash-reports" or "debug" or "libraries" or "logs" or "mods" or "servermods" or "versions"];
+		return relativePath is ["cache" or "crash-reports" or "debug" or "libraries" or "logs" or "mods" or "versions"];
 	}
 	
 	[SuppressMessage("ReSharper", "ConvertIfStatementToReturnStatement")]
@@ -35,7 +35,7 @@ sealed class BackupArchiver {
 		if (relativePath.Count == 2 && name == "session.lock") {
 			return true;
 		}
-
+		
 		var extension = Path.GetExtension(name);
 		if (extension is ".jar" or ".zip") {
 			return true;
@@ -43,7 +43,7 @@ sealed class BackupArchiver {
 		
 		return false;
 	}
-
+	
 	public async Task<string?> ArchiveWorld(BackupCreationResult.Builder resultBuilder) {
 		string guid = instanceProperties.InstanceGuid.ToString();
 		string currentDateTime = DateTime.Now.ToString("yyyyMMdd-HHmmss");
@@ -63,7 +63,7 @@ sealed class BackupArchiver {
 			logger.Error(e, "Could not create backup folder: {Folder}", backupFolderPath);
 			return null;
 		}
-
+		
 		string temporaryFolderPath = Path.Combine(temporaryBasePath, guid + "_" + currentDateTime);
 		if (!await CopyWorldAndCreateTarArchive(temporaryFolderPath, backupFilePath, resultBuilder)) {
 			return null;
@@ -72,19 +72,19 @@ sealed class BackupArchiver {
 		logger.Debug("Created world backup: {FilePath}", backupFilePath);
 		return backupFilePath;
 	}
-
+	
 	private async Task<bool> CopyWorldAndCreateTarArchive(string temporaryFolderPath, string backupFilePath, BackupCreationResult.Builder resultBuilder) {
 		try {
 			if (!await CopyWorldToTemporaryFolder(temporaryFolderPath)) {
 				resultBuilder.Kind = BackupCreationResultKind.CouldNotCopyWorldToTemporaryFolder;
 				return false;
 			}
-
+			
 			if (!await CreateTarArchive(temporaryFolderPath, backupFilePath)) {
 				resultBuilder.Kind = BackupCreationResultKind.CouldNotCreateWorldArchive;
 				return false;
 			}
-
+			
 			return true;
 		} finally {
 			try {
@@ -95,7 +95,7 @@ sealed class BackupArchiver {
 			}
 		}
 	}
-
+	
 	private async Task<bool> CopyWorldToTemporaryFolder(string temporaryFolderPath) {
 		try {
 			await CopyDirectory(new DirectoryInfo(instanceProperties.InstanceFolder), temporaryFolderPath, ImmutableList<string>.Empty);
@@ -105,7 +105,7 @@ sealed class BackupArchiver {
 			return false;
 		}
 	}
-
+	
 	private async Task<bool> CreateTarArchive(string sourceFolderPath, string backupFilePath) {
 		try {
 			await TarFile.CreateFromDirectoryAsync(sourceFolderPath, backupFilePath, false, cancellationToken);
@@ -116,7 +116,7 @@ sealed class BackupArchiver {
 			return false;
 		}
 	}
-
+	
 	private void DeleteBrokenArchiveFile(string filePath) {
 		if (File.Exists(filePath)) {
 			try {
@@ -126,10 +126,10 @@ sealed class BackupArchiver {
 			}
 		}
 	}
-
+	
 	private async Task CopyDirectory(DirectoryInfo sourceFolder, string destinationFolderPath, ImmutableList<string> relativePath) {
 		cancellationToken.ThrowIfCancellationRequested();
-
+		
 		bool needsToCreateFolder = true;
 		
 		foreach (FileInfo file in sourceFolder.EnumerateFiles()) {
@@ -138,15 +138,15 @@ sealed class BackupArchiver {
 				logger.Debug("Skipping file: {File}", string.Join('/', filePath));
 				continue;
 			}
-
+			
 			if (needsToCreateFolder) {
 				needsToCreateFolder = false;
 				Directories.Create(destinationFolderPath, Chmod.URWX);
 			}
-
+			
 			await CopyFileWithRetries(file, destinationFolderPath);
 		}
-
+		
 		foreach (DirectoryInfo directory in sourceFolder.EnumerateDirectories()) {
 			var folderPath = relativePath.Add(directory.Name);
 			if (IsFolderSkipped(folderPath)) {
@@ -157,7 +157,7 @@ sealed class BackupArchiver {
 			await CopyDirectory(directory, Path.Join(destinationFolderPath, directory.Name), folderPath);
 		}
 	}
-
+	
 	private async Task CopyFileWithRetries(FileInfo sourceFile, string destinationFolderPath) {
 		var destinationFilePath = Path.Combine(destinationFolderPath, sourceFile.Name);
 		

Agent/Phantom.Agent.Services/Backups/BackupCompressor.cs

@@ -19,27 +19,27 @@ static class BackupCompressor {
 		}
 		
 		var destinationFilePath = sourceFilePath + ".zst";
-
+		
 		if (!await TryCompressFile(sourceFilePath, destinationFilePath, cancellationToken)) {
 			try {
 				File.Delete(destinationFilePath);
 			} catch (Exception e) {
 				Logger.Error(e, "Could not delete compresed archive after unsuccessful compression: {Path}", destinationFilePath);
 			}
-
+			
 			return null;
 		}
-
+		
 		return destinationFilePath;
 	}
-
+	
 	private static async Task<bool> TryCompressFile(string sourceFilePath, string destinationFilePath, CancellationToken cancellationToken) {
 		var workingDirectory = Path.GetDirectoryName(sourceFilePath);
 		if (string.IsNullOrEmpty(workingDirectory)) {
 			Logger.Error("Invalid destination path: {Path}", destinationFilePath);
 			return false;
 		}
-
+		
 		var launcher = new ProcessConfigurator {
 			FileName = "zstd",
 			WorkingDirectory = workingDirectory,
@@ -53,13 +53,13 @@ static class BackupCompressor {
 				"--", sourceFilePath
 			}
 		};
-
+		
 		static void OnZstdOutput(object? sender, Process.Output output) {
 			if (!string.IsNullOrWhiteSpace(output.Line)) {
 				ZstdLogger.Debug("[Output] {Line}", output.Line);
 			}
 		}
-
+		
 		var process = new OneShotProcess(ZstdLogger, launcher);
 		process.OutputReceived += OnZstdOutput;
 		return await process.Run(cancellationToken);

Agent/Phantom.Agent.Services/Backups/BackupManager.cs

@@ -9,28 +9,28 @@ sealed class BackupManager : IDisposable {
 	private readonly string destinationBasePath;
 	private readonly string temporaryBasePath;
 	private readonly SemaphoreSlim compressionSemaphore;
-
+	
 	public BackupManager(AgentFolders agentFolders, int maxConcurrentCompressionTasks) {
 		this.destinationBasePath = agentFolders.BackupsFolderPath;
 		this.temporaryBasePath = Path.Combine(agentFolders.TemporaryFolderPath, "backups");
 		this.compressionSemaphore = new SemaphoreSlim(maxConcurrentCompressionTasks, maxConcurrentCompressionTasks);
 	}
-
+	
 	public Task<BackupCreationResult> CreateBackup(string loggerName, InstanceProcess process, CancellationToken cancellationToken) {
 		return new BackupCreator(this, loggerName, process, cancellationToken).CreateBackup();
 	}
-
+	
 	public void Dispose() {
 		compressionSemaphore.Dispose();
 	}
-
+	
 	private sealed class BackupCreator {
 		private readonly BackupManager manager;
 		private readonly string loggerName;
 		private readonly ILogger logger;
 		private readonly InstanceProcess process;
 		private readonly CancellationToken cancellationToken;
-
+		
 		public BackupCreator(BackupManager manager, string loggerName, InstanceProcess process, CancellationToken cancellationToken) {
 			this.manager = manager;
 			this.loggerName = loggerName;
@@ -38,7 +38,7 @@ sealed class BackupManager : IDisposable {
 			this.process = process;
 			this.cancellationToken = cancellationToken;
 		}
-
+		
 		public async Task<BackupCreationResult> CreateBackup() {
 			logger.Information("Backup started.");
 			
@@ -57,7 +57,7 @@ sealed class BackupManager : IDisposable {
 			LogBackupResult(result);
 			return result;
 		}
-
+		
 		private async Task<string?> CreateWorldArchive(BackupServerCommandDispatcher dispatcher, BackupCreationResult.Builder resultBuilder) {
 			try {
 				await dispatcher.DisableAutomaticSaving();
@@ -95,7 +95,7 @@ sealed class BackupManager : IDisposable {
 				logger.Information("Too many compression tasks running, waiting for one of them to complete...");
 				await manager.compressionSemaphore.WaitAsync(cancellationToken);
 			}
-
+			
 			logger.Information("Compressing backup...");
 			try {
 				var compressedFilePath = await BackupCompressor.Compress(filePath, cancellationToken);
@@ -106,7 +106,7 @@ sealed class BackupManager : IDisposable {
 				manager.compressionSemaphore.Release();
 			}
 		}
-
+		
 		private void LogBackupResult(BackupCreationResult result) {
 			if (result.Kind != BackupCreationResultKind.Success) {
 				logger.Warning("Backup failed: {Reason}", DescribeResult(result.Kind));
@@ -121,7 +121,7 @@ sealed class BackupManager : IDisposable {
 				logger.Information("Backup finished successfully.");
 			}
 		}
-
+		
 		private static string DescribeResult(BackupCreationResultKind kind) {
 			return kind switch {
 				BackupCreationResultKind.Success                            => "Backup created successfully.",

Agent/Phantom.Agent.Services/Backups/BackupScheduler.cs

@@ -11,7 +11,7 @@ sealed class BackupScheduler : CancellableBackgroundTask {
 	private static readonly TimeSpan InitialDelay = TimeSpan.FromMinutes(2);
 	private static readonly TimeSpan BackupInterval = TimeSpan.FromMinutes(30);
 	private static readonly TimeSpan BackupFailureRetryDelay = TimeSpan.FromMinutes(5);
-
+	
 	private readonly BackupManager backupManager;
 	private readonly InstanceContext context;
 	private readonly SemaphoreSlim backupSemaphore = new (1, 1);
@@ -19,14 +19,14 @@ sealed class BackupScheduler : CancellableBackgroundTask {
 	private readonly InstancePlayerCountTracker playerCountTracker;
 	
 	public event EventHandler<BackupCreationResult>? BackupCompleted;
-
+	
 	public BackupScheduler(InstanceContext context, InstancePlayerCountTracker playerCountTracker) : base(PhantomLogger.Create<BackupScheduler>(context.ShortName)) {
 		this.backupManager = context.Services.BackupManager;
 		this.context = context;
 		this.playerCountTracker = playerCountTracker;
 		Start();
 	}
-
+	
 	protected override async Task RunTask() {
 		await Task.Delay(InitialDelay, CancellationToken);
 		Logger.Information("Starting a new backup after server launched.");
@@ -46,7 +46,7 @@ sealed class BackupScheduler : CancellableBackgroundTask {
 			}
 		}
 	}
-
+	
 	private async Task<BackupCreationResult> CreateBackup() {
 		if (!await backupSemaphore.WaitAsync(TimeSpan.FromSeconds(1))) {
 			return new BackupCreationResult(BackupCreationResultKind.BackupAlreadyRunning);
@@ -61,7 +61,7 @@ sealed class BackupScheduler : CancellableBackgroundTask {
 			backupSemaphore.Release();
 		}
 	}
-
+	
 	private async Task WaitForOnlinePlayers() {
 		var task = playerCountTracker.WaitForOnlinePlayers(CancellationToken);
 		if (!task.IsCompleted) {
@@ -77,7 +77,7 @@ sealed class BackupScheduler : CancellableBackgroundTask {
 			Logger.Warning("Could not detect whether any players are online, starting a new backup.");
 		}
 	}
-
+	
 	protected override void Dispose() {
 		backupSemaphore.Dispose();
 		serverOutputWhileWaitingForOnlinePlayers.Dispose();

Agent/Phantom.Agent.Services/Backups/BackupServerCommandDispatcher.cs

@@ -28,54 +28,54 @@ sealed partial class BackupServerCommandDispatcher : IDisposable {
 		"Turned on world auto-saving",
 		"CONSOLE: Enabling level saving.."
 	);
-
+	
 	private readonly ILogger logger;
 	private readonly InstanceProcess process;
 	private readonly CancellationToken cancellationToken;
-
+	
 	private readonly TaskCompletionSource automaticSavingDisabled = AsyncTasks.CreateCompletionSource();
 	private readonly TaskCompletionSource savedTheGame = AsyncTasks.CreateCompletionSource();
 	private readonly TaskCompletionSource automaticSavingEnabled = AsyncTasks.CreateCompletionSource();
-
+	
 	public BackupServerCommandDispatcher(ILogger logger, InstanceProcess process, CancellationToken cancellationToken) {
 		this.logger = logger;
 		this.process = process;
 		this.cancellationToken = cancellationToken;
-
+		
 		this.process.AddOutputListener(OnOutput, maxLinesToReadFromHistory: 0);
 	}
-
+	
 	void IDisposable.Dispose() {
 		process.RemoveOutputListener(OnOutput);
 	}
-
+	
 	public async Task DisableAutomaticSaving() {
 		await process.SendCommand(MinecraftCommand.SaveOff, cancellationToken);
 		await automaticSavingDisabled.Task.WaitAsync(TimeSpan.FromSeconds(30), cancellationToken);
 	}
-
+	
 	public async Task SaveAllChunks() {
 		await process.SendCommand(MinecraftCommand.SaveAll(flush: true), cancellationToken);
 		await savedTheGame.Task.WaitAsync(TimeSpan.FromMinutes(1), cancellationToken);
 	}
-
+	
 	public async Task EnableAutomaticSaving() {
 		await process.SendCommand(MinecraftCommand.SaveOn, cancellationToken);
 		await automaticSavingEnabled.Task.WaitAsync(TimeSpan.FromMinutes(1), cancellationToken);
 	}
-
+	
 	private void OnOutput(object? sender, string? line) {
 		if (line == null) {
 			return;
 		}
-
+		
 		var match = ServerThreadInfoRegex().Match(line);
 		if (!match.Success) {
 			return;
 		}
-
+		
 		string info = match.Groups[1].Value;
-
+		
 		if (!automaticSavingDisabled.Task.IsCompleted) {
 			if (AutomaticSavingDisabledMessages.Contains(info)) {
 				logger.Debug("Detected that automatic saving is disabled.");

Agent/Phantom.Agent.Services/Instances/InstanceActor.cs

@@ -14,11 +14,11 @@ namespace Phantom.Agent.Services.Instances;
 
 sealed class InstanceActor : ReceiveActor<InstanceActor.ICommand> {
 	public readonly record struct Init(AgentState AgentState, Guid InstanceGuid, string ShortName, InstanceServices InstanceServices, InstanceTicketManager InstanceTicketManager, CancellationToken ShutdownCancellationToken);
-
+	
 	public static Props<ICommand> Factory(Init init) {
 		return Props<ICommand>.Create(() => new InstanceActor(init), new ActorConfiguration { SupervisorStrategy = SupervisorStrategies.Resume, MailboxType = UnboundedJumpAheadMailbox.Name });
 	}
-
+	
 	private readonly AgentState agentState;
 	private readonly CancellationToken shutdownCancellationToken;
 	
@@ -28,10 +28,10 @@ sealed class InstanceActor : ReceiveActor<InstanceActor.ICommand> {
 	private readonly InstanceContext context;
 	
 	private readonly CancellationTokenSource actorCancellationTokenSource = new ();
-
+	
 	private IInstanceStatus currentStatus = InstanceStatus.NotRunning;
 	private InstanceRunningState? runningState = null;
-
+	
 	private InstanceActor(Init init) {
 		this.agentState = init.AgentState;
 		this.instanceGuid = init.InstanceGuid;
@@ -41,7 +41,7 @@ sealed class InstanceActor : ReceiveActor<InstanceActor.ICommand> {
 		
 		var logger = PhantomLogger.Create<InstanceActor>(init.ShortName);
 		this.context = new InstanceContext(instanceGuid, init.ShortName, logger, instanceServices, SelfTyped, actorCancellationTokenSource.Token);
-
+		
 		Receive<ReportInstanceStatusCommand>(ReportInstanceStatus);
 		ReceiveAsync<LaunchInstanceCommand>(LaunchInstance);
 		ReceiveAsync<StopInstanceCommand>(StopInstance);
@@ -50,29 +50,29 @@ sealed class InstanceActor : ReceiveActor<InstanceActor.ICommand> {
 		Receive<HandleProcessEndedCommand>(HandleProcessEnded);
 		ReceiveAsync<ShutdownCommand>(Shutdown);
 	}
-
+	
 	private void SetAndReportStatus(IInstanceStatus status) {
 		currentStatus = status;
 		ReportCurrentStatus();
 	}
-
+	
 	private void ReportCurrentStatus() {
 		agentState.UpdateInstance(new Instance(instanceGuid, currentStatus));
-		instanceServices.ControllerConnection.Send(new ReportInstanceStatusMessage(instanceGuid, currentStatus));
+		instanceServices.ControllerConnection.TrySend(new ReportInstanceStatusMessage(instanceGuid, currentStatus));
 	}
-
+	
 	private void TransitionState(InstanceRunningState? newState) {
 		if (runningState == newState) {
 			return;
 		}
-
+		
 		runningState?.Dispose();
 		runningState = newState;
 		runningState?.Initialize();
 	}
 	
 	public interface ICommand {}
-
+	
 	public sealed record ReportInstanceStatusCommand : ICommand;
 	
 	public sealed record LaunchInstanceCommand(InstanceConfiguration Configuration, IServerLauncher Launcher, InstanceTicketManager.Ticket Ticket, bool IsRestarting) : ICommand;
@@ -86,7 +86,7 @@ sealed class InstanceActor : ReceiveActor<InstanceActor.ICommand> {
 	public sealed record HandleProcessEndedCommand(IInstanceStatus Status) : ICommand, IJumpAhead;
 	
 	public sealed record ShutdownCommand : ICommand;
-
+	
 	private void ReportInstanceStatus(ReportInstanceStatusCommand command) {
 		ReportCurrentStatus();
 	}
@@ -103,12 +103,12 @@ sealed class InstanceActor : ReceiveActor<InstanceActor.ICommand> {
 			TransitionState(newState);
 		}
 	}
-
+	
 	private async Task StopInstance(StopInstanceCommand command) {
 		if (runningState is null) {
 			return;
 		}
-
+		
 		IInstanceStatus oldStatus = currentStatus;
 		SetAndReportStatus(InstanceStatus.Stopping);
 		
@@ -120,7 +120,7 @@ sealed class InstanceActor : ReceiveActor<InstanceActor.ICommand> {
 			SetAndReportStatus(oldStatus);
 		}
 	}
-
+	
 	private async Task<SendCommandToInstanceResult> SendCommandToInstance(SendCommandToInstanceCommand command) {
 		if (runningState is null) {
 			return SendCommandToInstanceResult.InstanceNotRunning;
@@ -143,7 +143,7 @@ sealed class InstanceActor : ReceiveActor<InstanceActor.ICommand> {
 			}
 		}
 	}
-
+	
 	private void HandleProcessEnded(HandleProcessEndedCommand command) {
 		if (runningState is { Process.HasEnded: true }) {
 			SetAndReportStatus(command.Status);
@@ -152,7 +152,7 @@ sealed class InstanceActor : ReceiveActor<InstanceActor.ICommand> {
 			TransitionState(null);
 		}
 	}
-
+	
 	private async Task Shutdown(ShutdownCommand command) {
 		await StopInstance(new StopInstanceCommand(MinecraftStopStrategy.Instant));
 		await actorCancellationTokenSource.CancelAsync();

Agent/Phantom.Agent.Services/Instances/InstanceContext.cs

@@ -7,6 +7,6 @@ namespace Phantom.Agent.Services.Instances;
 
 sealed record InstanceContext(Guid InstanceGuid, string ShortName, ILogger Logger, InstanceServices Services, ActorRef<InstanceActor.ICommand> Actor, CancellationToken ActorCancellationToken) {
 	public void ReportEvent(IInstanceEvent instanceEvent) {
-		Services.ControllerConnection.Send(new ReportInstanceEventMessage(Guid.NewGuid(), DateTime.UtcNow, InstanceGuid, instanceEvent));
+		Services.ControllerConnection.TrySend(new ReportInstanceEventMessage(Guid.NewGuid(), DateTime.UtcNow, InstanceGuid, instanceEvent));
 	}
 }

Agent/Phantom.Agent.Services/Instances/InstanceManagerActor.cs

@@ -4,8 +4,8 @@ using Phantom.Agent.Minecraft.Launcher;
 using Phantom.Agent.Minecraft.Launcher.Types;
 using Phantom.Agent.Minecraft.Properties;
 using Phantom.Agent.Minecraft.Server;
-using Phantom.Agent.Rpc;
 using Phantom.Agent.Services.Backups;
+using Phantom.Agent.Services.Rpc;
 using Phantom.Common.Data;
 using Phantom.Common.Data.Instance;
 using Phantom.Common.Data.Minecraft;
@@ -19,34 +19,34 @@ namespace Phantom.Agent.Services.Instances;
 
 sealed class InstanceManagerActor : ReceiveActor<InstanceManagerActor.ICommand> {
 	private static readonly ILogger Logger = PhantomLogger.Create<InstanceManagerActor>();
-
+	
 	public readonly record struct Init(ControllerConnection ControllerConnection, AgentFolders AgentFolders, AgentState AgentState, JavaRuntimeRepository JavaRuntimeRepository, InstanceTicketManager InstanceTicketManager, BackupManager BackupManager);
-
+	
 	public static Props<ICommand> Factory(Init init) {
 		return Props<ICommand>.Create(() => new InstanceManagerActor(init), new ActorConfiguration { SupervisorStrategy = SupervisorStrategies.Resume });
 	}
 	
 	private readonly AgentState agentState;
 	private readonly string basePath;
-
+	
 	private readonly InstanceServices instanceServices;
 	private readonly InstanceTicketManager instanceTicketManager;
 	private readonly Dictionary<Guid, InstanceInfo> instances = new ();
-
+	
 	private readonly CancellationTokenSource shutdownCancellationTokenSource = new ();
 	private readonly CancellationToken shutdownCancellationToken;
-
+	
 	private uint instanceLoggerSequenceId = 0;
-
+	
 	private InstanceManagerActor(Init init) {
 		this.agentState = init.AgentState;
 		this.basePath = init.AgentFolders.InstancesFolderPath;
 		this.instanceTicketManager = init.InstanceTicketManager;
 		this.shutdownCancellationToken = shutdownCancellationTokenSource.Token;
-
+		
 		var minecraftServerExecutables = new MinecraftServerExecutables(init.AgentFolders.ServerExecutableFolderPath);
 		var launchServices = new LaunchServices(minecraftServerExecutables, init.JavaRuntimeRepository);
-
+		
 		this.instanceServices = new InstanceServices(init.ControllerConnection, init.BackupManager, launchServices);
 		
 		ReceiveAndReply<ConfigureInstanceCommand, Result<ConfigureInstanceResult, InstanceActionFailure>>(ConfigureInstance);
@@ -55,12 +55,12 @@ sealed class InstanceManagerActor : ReceiveActor<InstanceManagerActor.ICommand>
 		ReceiveAsyncAndReply<SendCommandToInstanceCommand, Result<SendCommandToInstanceResult, InstanceActionFailure>>(SendCommandToInstance);
 		ReceiveAsync<ShutdownCommand>(Shutdown);
 	}
-
+	
 	private string GetInstanceLoggerName(Guid guid) {
 		var prefix = guid.ToString();
 		return prefix[..prefix.IndexOf('-')] + "/" + Interlocked.Increment(ref instanceLoggerSequenceId);
 	}
-
+	
 	private sealed record InstanceInfo(ActorRef<InstanceActor.ICommand> Actor, InstanceConfiguration Configuration, IServerLauncher Launcher);
 	
 	public interface ICommand {}
@@ -74,20 +74,20 @@ sealed class InstanceManagerActor : ReceiveActor<InstanceManagerActor.ICommand>
 	public sealed record SendCommandToInstanceCommand(Guid InstanceGuid, string Command) : ICommand, ICanReply<Result<SendCommandToInstanceResult, InstanceActionFailure>>;
 	
 	public sealed record ShutdownCommand : ICommand;
-
+	
 	private Result<ConfigureInstanceResult, InstanceActionFailure> ConfigureInstance(ConfigureInstanceCommand command) {
 		var instanceGuid = command.InstanceGuid;
 		var configuration = command.Configuration;
-
+		
 		var instanceFolder = Path.Combine(basePath, instanceGuid.ToString());
 		Directories.Create(instanceFolder, Chmod.URWX_GRX);
-
+		
 		var heapMegabytes = configuration.MemoryAllocation.InMegabytes;
 		var jvmProperties = new JvmProperties(
 			InitialHeapMegabytes: heapMegabytes / 2,
 			MaximumHeapMegabytes: heapMegabytes
 		);
-
+		
 		var properties = new InstanceProperties(
 			instanceGuid,
 			configuration.JavaRuntimeGuid,
@@ -98,22 +98,21 @@ sealed class InstanceManagerActor : ReceiveActor<InstanceManagerActor.ICommand>
 			new ServerProperties(configuration.ServerPort, configuration.RconPort),
 			command.LaunchProperties
 		);
-
+		
 		IServerLauncher launcher = configuration.MinecraftServerKind switch {
 			MinecraftServerKind.Vanilla => new VanillaLauncher(properties),
 			MinecraftServerKind.Fabric  => new FabricLauncher(properties),
-			MinecraftServerKind.Forge   => new ForgeLauncher(properties),
 			_                           => InvalidLauncher.Instance
 		};
-
+		
 		if (instances.TryGetValue(instanceGuid, out var instance)) {
 			instances[instanceGuid] = instance with {
 				Configuration = configuration,
 				Launcher = launcher
 			};
-				
+			
 			Logger.Information("Reconfigured instance \"{Name}\" (GUID {Guid}).", configuration.InstanceName, instanceGuid);
-
+			
 			if (command.AlwaysReportStatus) {
 				instance.Actor.Tell(new InstanceActor.ReportInstanceStatusCommand());
 			}
@@ -121,19 +120,19 @@ sealed class InstanceManagerActor : ReceiveActor<InstanceManagerActor.ICommand>
 		else {
 			var instanceInit = new InstanceActor.Init(agentState, instanceGuid, GetInstanceLoggerName(instanceGuid), instanceServices, instanceTicketManager, shutdownCancellationToken);
 			instances[instanceGuid] = instance = new InstanceInfo(Context.ActorOf(InstanceActor.Factory(instanceInit), "Instance-" + instanceGuid), configuration, launcher);
-				
+			
 			Logger.Information("Created instance \"{Name}\" (GUID {Guid}).", configuration.InstanceName, instanceGuid);
-
+			
 			instance.Actor.Tell(new InstanceActor.ReportInstanceStatusCommand());
 		}
-
+		
 		if (command.LaunchNow) {
 			LaunchInstance(new LaunchInstanceCommand(instanceGuid));
 		}
-
+		
 		return ConfigureInstanceResult.Success;
 	}
-
+	
 	private Result<LaunchInstanceResult, InstanceActionFailure> LaunchInstance(LaunchInstanceCommand command) {
 		var instanceGuid = command.InstanceGuid;
 		if (!instances.TryGetValue(instanceGuid, out var instanceInfo)) {
@@ -144,7 +143,7 @@ sealed class InstanceManagerActor : ReceiveActor<InstanceManagerActor.ICommand>
 		if (!ticket) {
 			return ticket.Error;
 		}
-
+		
 		if (agentState.InstancesByGuid.TryGetValue(instanceGuid, out var instance)) {
 			var status = instance.Status;
 			if (status.IsRunning()) {
@@ -158,13 +157,13 @@ sealed class InstanceManagerActor : ReceiveActor<InstanceManagerActor.ICommand>
 		instanceInfo.Actor.Tell(new InstanceActor.LaunchInstanceCommand(instanceInfo.Configuration, instanceInfo.Launcher, ticket.Value, IsRestarting: false));
 		return LaunchInstanceResult.LaunchInitiated;
 	}
-
+	
 	private Result<StopInstanceResult, InstanceActionFailure> StopInstance(StopInstanceCommand command) {
 		var instanceGuid = command.InstanceGuid;
 		if (!instances.TryGetValue(instanceGuid, out var instanceInfo)) {
 			return InstanceActionFailure.InstanceDoesNotExist;
 		}
-        
+		
 		if (agentState.InstancesByGuid.TryGetValue(instanceGuid, out var instance)) {
 			var status = instance.Status;
 			if (status.IsStopping()) {
@@ -174,24 +173,24 @@ sealed class InstanceManagerActor : ReceiveActor<InstanceManagerActor.ICommand>
 				return StopInstanceResult.InstanceAlreadyStopped;
 			}
 		}
-			
+		
 		instanceInfo.Actor.Tell(new InstanceActor.StopInstanceCommand(command.StopStrategy));
 		return StopInstanceResult.StopInitiated;
 	}
-
+	
 	private async Task<Result<SendCommandToInstanceResult, InstanceActionFailure>> SendCommandToInstance(SendCommandToInstanceCommand command) {
 		var instanceGuid = command.InstanceGuid;
 		if (!instances.TryGetValue(instanceGuid, out var instanceInfo)) {
 			return InstanceActionFailure.InstanceDoesNotExist;
 		}
-
+		
 		try {
 			return await instanceInfo.Actor.Request(new InstanceActor.SendCommandToInstanceCommand(command.Command), shutdownCancellationToken);
 		} catch (OperationCanceledException) {
 			return InstanceActionFailure.AgentShuttingDown;
 		}
 	}
-
+	
 	private async Task Shutdown(ShutdownCommand command) {
 		Logger.Information("Stopping all instances...");
 		

Agent/Phantom.Agent.Services/Instances/InstanceServices.cs

@@ -1,6 +1,6 @@
 using Phantom.Agent.Minecraft.Launcher;
-using Phantom.Agent.Rpc;
 using Phantom.Agent.Services.Backups;
+using Phantom.Agent.Services.Rpc;
 
 namespace Phantom.Agent.Services.Instances;
 

Agent/Phantom.Agent.Services/Instances/InstanceTicketManager.cs

@@ -1,11 +1,10 @@
-using Phantom.Agent.Rpc;
+using Phantom.Agent.Services.Rpc;
 using Phantom.Common.Data;
 using Phantom.Common.Data.Agent;
 using Phantom.Common.Data.Instance;
 using Phantom.Common.Data.Replies;
 using Phantom.Common.Messages.Agent.ToController;
 using Phantom.Utils.Logging;
-using Phantom.Utils.Tasks;
 using Serilog;
 
 namespace Phantom.Agent.Services.Instances;
@@ -19,12 +18,12 @@ sealed class InstanceTicketManager {
 	private readonly HashSet<Guid> activeTicketGuids = new ();
 	private readonly HashSet<ushort> usedPorts = new ();
 	private RamAllocationUnits usedMemory = new ();
-
+	
 	public InstanceTicketManager(AgentInfo agentInfo, ControllerConnection controllerConnection) {
 		this.agentInfo = agentInfo;
 		this.controllerConnection = controllerConnection;
 	}
-
+	
 	public Result<Ticket, LaunchInstanceResult> Reserve(InstanceConfiguration configuration) {
 		var memoryAllocation = configuration.MemoryAllocation;
 		var serverPort = configuration.ServerPort;
@@ -33,7 +32,7 @@ sealed class InstanceTicketManager {
 		if (!agentInfo.AllowedServerPorts.Contains(serverPort)) {
 			return LaunchInstanceResult.ServerPortNotAllowed;
 		}
-
+		
 		if (!agentInfo.AllowedRconPorts.Contains(rconPort)) {
 			return LaunchInstanceResult.RconPortNotAllowed;
 		}
@@ -42,7 +41,7 @@ sealed class InstanceTicketManager {
 			if (activeTicketGuids.Count + 1 > agentInfo.MaxInstances) {
 				return LaunchInstanceResult.InstanceLimitExceeded;
 			}
-
+			
 			if (usedMemory + memoryAllocation > agentInfo.MaxMemory) {
 				return LaunchInstanceResult.MemoryLimitExceeded;
 			}
@@ -50,11 +49,11 @@ sealed class InstanceTicketManager {
 			if (usedPorts.Contains(serverPort)) {
 				return LaunchInstanceResult.ServerPortAlreadyInUse;
 			}
-
+			
 			if (usedPorts.Contains(rconPort)) {
 				return LaunchInstanceResult.RconPortAlreadyInUse;
 			}
-
+			
 			var ticket = new Ticket(Guid.NewGuid(), memoryAllocation, serverPort, rconPort);
 			
 			activeTicketGuids.Add(ticket.TicketGuid);
@@ -64,11 +63,11 @@ sealed class InstanceTicketManager {
 			
 			RefreshAgentStatus();
 			Logger.Debug("Reserved ticket {TicketGuid} (server port {ServerPort}, rcon port {RconPort}, memory allocation {MemoryAllocation} MB).", ticket.TicketGuid, ticket.ServerPort, ticket.RconPort, ticket.MemoryAllocation.InMegabytes);
-
+			
 			return ticket;
 		}
 	}
-
+	
 	public bool IsValid(Ticket ticket) {
 		lock (this) {
 			return activeTicketGuids.Contains(ticket.TicketGuid);
@@ -80,7 +79,7 @@ sealed class InstanceTicketManager {
 			if (!activeTicketGuids.Remove(ticket.TicketGuid)) {
 				return;
 			}
-
+			
 			usedMemory -= ticket.MemoryAllocation;
 			usedPorts.Remove(ticket.ServerPort);
 			usedPorts.Remove(ticket.RconPort);
@@ -92,7 +91,7 @@ sealed class InstanceTicketManager {
 	
 	public void RefreshAgentStatus() {
 		lock (this) {
-			controllerConnection.Send(new ReportAgentStatusMessage(activeTicketGuids.Count, usedMemory));
+			controllerConnection.TrySend(new ReportAgentStatusMessage(activeTicketGuids.Count, usedMemory));
 		}
 	}
 	

Agent/Phantom.Agent.Services/Instances/State/InstanceLaunchProcedure.cs

@@ -9,9 +9,9 @@ namespace Phantom.Agent.Services.Instances.State;
 static class InstanceLaunchProcedure {
 	public static async Task<InstanceRunningState?> Run(InstanceContext context, InstanceConfiguration configuration, IServerLauncher launcher, InstanceTicketManager ticketManager, InstanceTicketManager.Ticket ticket, Action<IInstanceStatus> reportStatus, CancellationToken cancellationToken) {
 		context.Logger.Information("Session starting...");
-
+		
 		Result<InstanceProcess, InstanceLaunchFailReason> result;
-
+		
 		if (ticketManager.IsValid(ticket)) {
 			try {
 				result = await LaunchInstance(context, launcher, reportStatus, cancellationToken);
@@ -27,7 +27,7 @@ static class InstanceLaunchProcedure {
 			context.Logger.Error("Attempted to launch instance with an invalid ticket!");
 			result = InstanceLaunchFailReason.UnknownError;
 		}
-
+		
 		if (result) {
 			reportStatus(InstanceStatus.Running);
 			context.ReportEvent(InstanceEvent.LaunchSucceeded);
@@ -39,45 +39,45 @@ static class InstanceLaunchProcedure {
 			return null;
 		}
 	}
-
+	
 	private static async Task<Result<InstanceProcess, InstanceLaunchFailReason>> LaunchInstance(InstanceContext context, IServerLauncher launcher, Action<IInstanceStatus> reportStatus, CancellationToken cancellationToken) {
 		cancellationToken.ThrowIfCancellationRequested();
-
+		
 		byte lastDownloadProgress = byte.MaxValue;
-
+		
 		void OnDownloadProgress(object? sender, DownloadProgressEventArgs args) {
 			byte progress = (byte) Math.Min(args.DownloadedBytes * 100 / args.TotalBytes, 100);
-
+			
 			if (lastDownloadProgress != progress) {
 				lastDownloadProgress = progress;
 				reportStatus(InstanceStatus.Downloading(progress));
 			}
 		}
-
+		
 		switch (await launcher.Launch(context.Logger, context.Services.LaunchServices, OnDownloadProgress, cancellationToken)) {
 			case LaunchResult.Success launchSuccess:
 				return launchSuccess.Process;
-
+			
 			case LaunchResult.InvalidJavaRuntime:
 				context.Logger.Error("Session failed to launch, invalid Java runtime.");
 				return InstanceLaunchFailReason.JavaRuntimeNotFound;
-
+			
 			case LaunchResult.CouldNotDownloadMinecraftServer:
 				context.Logger.Error("Session failed to launch, could not download Minecraft server.");
 				return InstanceLaunchFailReason.CouldNotDownloadMinecraftServer;
-
+			
 			case LaunchResult.CouldNotPrepareMinecraftServerLauncher:
 				context.Logger.Error("Session failed to launch, could not prepare Minecraft server launcher.");
 				return InstanceLaunchFailReason.CouldNotPrepareMinecraftServerLauncher;
-
+			
 			case LaunchResult.CouldNotConfigureMinecraftServer:
 				context.Logger.Error("Session failed to launch, could not configure Minecraft server.");
 				return InstanceLaunchFailReason.CouldNotConfigureMinecraftServer;
-
+			
 			case LaunchResult.CouldNotStartMinecraftServer:
 				context.Logger.Error("Session failed to launch, could not start Minecraft server.");
 				return InstanceLaunchFailReason.CouldNotStartMinecraftServer;
-
+			
 			default:
 				context.Logger.Error("Session failed to launch.");
 				return InstanceLaunchFailReason.UnknownError;

Agent/Phantom.Agent.Services/Instances/State/InstanceLogSender.cs

@@ -1,6 +1,6 @@
 using System.Collections.Immutable;
 using System.Threading.Channels;
-using Phantom.Agent.Rpc;
+using Phantom.Agent.Services.Rpc;
 using Phantom.Common.Messages.Agent.ToController;
 using Phantom.Utils.Logging;
 using Phantom.Utils.Tasks;
@@ -15,13 +15,13 @@ sealed class InstanceLogSender : CancellableBackgroundTask {
 	};
 	
 	private static readonly TimeSpan SendDelay = TimeSpan.FromMilliseconds(200);
-
+	
 	private readonly ControllerConnection controllerConnection;
 	private readonly Guid instanceGuid;
 	private readonly Channel<string> outputChannel;
 	
 	private int droppedLinesSinceLastSend;
-
+	
 	public InstanceLogSender(ControllerConnection controllerConnection, Guid instanceGuid, string loggerName) : base(PhantomLogger.Create<InstanceLogSender>(loggerName)) {
 		this.controllerConnection = controllerConnection;
 		this.instanceGuid = instanceGuid;
@@ -41,11 +41,11 @@ sealed class InstanceLogSender : CancellableBackgroundTask {
 		} catch (OperationCanceledException) {
 			// Ignore.
 		}
-
+		
 		// Flush remaining lines.
 		SendOutputToServer(ReadLinesFromChannel(lineReader, lineBuilder));
 	}
-
+	
 	private ImmutableArray<string> ReadLinesFromChannel(ChannelReader<string> reader, ImmutableArray<string>.Builder builder) {
 		builder.Clear();
 		
@@ -60,22 +60,22 @@ sealed class InstanceLogSender : CancellableBackgroundTask {
 		
 		return builder.ToImmutable();
 	}
-
+	
 	private void SendOutputToServer(ImmutableArray<string> lines) {
 		if (!lines.IsEmpty) {
-			controllerConnection.Send(new InstanceOutputMessage(instanceGuid, lines));
+			controllerConnection.TrySend(new InstanceOutputMessage(instanceGuid, lines));
 		}
 	}
-
+	
 	private void OnLineDropped(string line) {
 		Logger.Warning("Buffer is full, dropped line: {Line}", line);
 		Interlocked.Increment(ref droppedLinesSinceLastSend);
 	}
-
+	
 	public void Enqueue(string line) {
 		outputChannel.Writer.TryWrite(line);
 	}
-
+	
 	protected override void Dispose() {
 		if (!outputChannel.Writer.TryComplete()) {
 			Logger.Error("Could not mark channel as completed.");

Agent/Phantom.Agent.Services/Instances/State/InstancePlayerCountTracker.cs

@@ -1,6 +1,6 @@
 using Phantom.Agent.Minecraft.Instance;
 using Phantom.Agent.Minecraft.Server;
-using Phantom.Agent.Rpc;
+using Phantom.Agent.Services.Rpc;
 using Phantom.Common.Data.Instance;
 using Phantom.Common.Messages.Agent.ToController;
 using Phantom.Utils.Logging;
@@ -14,12 +14,12 @@ sealed class InstancePlayerCountTracker : CancellableBackgroundTask {
 	private readonly Guid instanceGuid;
 	private readonly ushort serverPort;
 	private readonly InstanceProcess process;
-
+	
 	private readonly TaskCompletionSource firstDetection = AsyncTasks.CreateCompletionSource();
 	private readonly ManualResetEventSlim serverOutputEvent = new ();
-
+	
 	private InstancePlayerCounts? playerCounts;
-
+	
 	public InstancePlayerCounts? PlayerCounts {
 		get {
 			lock (this) {
@@ -36,16 +36,16 @@ sealed class InstancePlayerCountTracker : CancellableBackgroundTask {
 				playerCounts = value;
 				onlinePlayerCountChanged = OnlinePlayerCountChanged;
 			}
-
+			
 			onlinePlayerCountChanged?.Invoke(this, value?.Online);
-			controllerConnection.Send(new ReportInstancePlayerCountsMessage(instanceGuid, value));
+			controllerConnection.TrySend(new ReportInstancePlayerCountsMessage(instanceGuid, value));
 		}
 	}
-
+	
 	private event EventHandler<int?>? OnlinePlayerCountChanged;
-
+	
 	private bool isDisposed = false;
-
+	
 	public InstancePlayerCountTracker(InstanceContext context, InstanceProcess process, ushort serverPort) : base(PhantomLogger.Create<InstancePlayerCountTracker>(context.ShortName)) {
 		this.controllerConnection = context.Services.ControllerConnection;
 		this.instanceGuid = context.InstanceGuid;
@@ -53,29 +53,29 @@ sealed class InstancePlayerCountTracker : CancellableBackgroundTask {
 		this.serverPort = serverPort;
 		Start();
 	}
-
+	
 	protected override async Task RunTask() {
 		// Give the server time to start accepting connections.
 		await Task.Delay(TimeSpan.FromSeconds(10), CancellationToken);
-
+		
 		serverOutputEvent.Set();
 		process.AddOutputListener(OnOutput, maxLinesToReadFromHistory: 0);
 		
 		while (!CancellationToken.IsCancellationRequested) {
 			serverOutputEvent.Reset();
-
+			
 			PlayerCounts = await TryGetPlayerCounts();
 			
 			if (!firstDetection.Task.IsCompleted) {
 				firstDetection.SetResult();
 			}
-
+			
 			await Task.Delay(TimeSpan.FromSeconds(10), CancellationToken);
 			await serverOutputEvent.WaitHandle.WaitOneAsync(CancellationToken);
 			await Task.Delay(TimeSpan.FromSeconds(1), CancellationToken);
 		}
 	}
-
+	
 	private async Task<InstancePlayerCounts?> TryGetPlayerCounts() {
 		try {
 			var result = await ServerStatusProtocol.GetPlayerCounts(serverPort, CancellationToken);
@@ -89,12 +89,12 @@ sealed class InstancePlayerCountTracker : CancellableBackgroundTask {
 			return null;
 		}
 	}
-
+	
 	public async Task WaitForOnlinePlayers(CancellationToken cancellationToken) {
 		await firstDetection.Task.WaitAsync(cancellationToken);
-
+		
 		var onlinePlayersDetected = AsyncTasks.CreateCompletionSource();
-
+		
 		lock (this) {
 			if (playerCounts is { Online: > 0 }) {
 				return;
@@ -102,9 +102,9 @@ sealed class InstancePlayerCountTracker : CancellableBackgroundTask {
 			else if (playerCounts == null) {
 				throw new InvalidOperationException();
 			}
-
+			
 			OnlinePlayerCountChanged += OnOnlinePlayerCountChanged;
-
+			
 			void OnOnlinePlayerCountChanged(object? sender, int? newPlayerCount) {
 				if (newPlayerCount == null) {
 					onlinePlayersDetected.TrySetException(new InvalidOperationException());
@@ -116,10 +116,10 @@ sealed class InstancePlayerCountTracker : CancellableBackgroundTask {
 				}
 			}
 		}
-
+		
 		await onlinePlayersDetected.Task;
 	}
-
+	
 	private void OnOutput(object? sender, string? line) {
 		lock (this) {
 			if (!isDisposed) {
@@ -127,13 +127,13 @@ sealed class InstancePlayerCountTracker : CancellableBackgroundTask {
 			}
 		}
 	}
-
+	
 	protected override void Dispose() {
 		lock (this) {
 			isDisposed = true;
 			playerCounts = null;
 		}
-
+		
 		process.RemoveOutputListener(OnOutput);
 		serverOutputEvent.Dispose();
 	}

Agent/Phantom.Agent.Services/Instances/State/InstanceRunningState.cs

@@ -10,20 +10,20 @@ namespace Phantom.Agent.Services.Instances.State;
 sealed class InstanceRunningState : IDisposable {
 	public InstanceTicketManager.Ticket Ticket { get; }
 	public InstanceProcess Process { get; }
-
+	
 	internal bool IsStopping { get; set; }
-
+	
 	private readonly InstanceContext context;
 	private readonly InstanceConfiguration configuration;
 	private readonly IServerLauncher launcher;
 	private readonly CancellationToken cancellationToken;
-
+	
 	private readonly InstanceLogSender logSender;
 	private readonly InstancePlayerCountTracker playerCountTracker;
 	private readonly BackupScheduler backupScheduler;
-
+	
 	private bool isDisposed;
-
+	
 	public InstanceRunningState(InstanceContext context, InstanceConfiguration configuration, IServerLauncher launcher, InstanceTicketManager.Ticket ticket, InstanceProcess process, CancellationToken cancellationToken) {
 		this.context = context;
 		this.configuration = configuration;
@@ -31,17 +31,17 @@ sealed class InstanceRunningState : IDisposable {
 		this.Ticket = ticket;
 		this.Process = process;
 		this.cancellationToken = cancellationToken;
-
+		
 		this.logSender = new InstanceLogSender(context.Services.ControllerConnection, context.InstanceGuid, context.ShortName);
 		this.playerCountTracker = new InstancePlayerCountTracker(context, process, configuration.ServerPort);
-
+		
 		this.backupScheduler = new BackupScheduler(context, playerCountTracker);
 		this.backupScheduler.BackupCompleted += OnScheduledBackupCompleted;
 	}
-
+	
 	public void Initialize() {
 		Process.Ended += ProcessEnded;
-
+		
 		if (Process.HasEnded) {
 			if (TryDispose()) {
 				context.Logger.Warning("Session ended immediately after it was started.");
@@ -53,17 +53,17 @@ sealed class InstanceRunningState : IDisposable {
 			Process.AddOutputListener(SessionOutput);
 		}
 	}
-
+	
 	private void SessionOutput(object? sender, string line) {
 		context.Logger.Debug("[Server] {Line}", line);
 		logSender.Enqueue(line);
 	}
-
+	
 	private void ProcessEnded(object? sender, EventArgs e) {
 		if (!TryDispose()) {
 			return;
 		}
-
+		
 		if (cancellationToken.IsCancellationRequested) {
 			return;
 		}
@@ -77,11 +77,11 @@ sealed class InstanceRunningState : IDisposable {
 			context.Actor.Tell(new InstanceActor.LaunchInstanceCommand(configuration, launcher, Ticket, IsRestarting: true));
 		}
 	}
-
+	
 	private void OnScheduledBackupCompleted(object? sender, BackupCreationResult e) {
 		context.ReportEvent(new InstanceBackupCompletedEvent(e.Kind, e.Warnings));
 	}
-
+	
 	public async Task<SendCommandToInstanceResult> SendCommand(string command, CancellationToken cancellationToken) {
 		try {
 			context.Logger.Information("Sending command: {Command}", command);
@@ -94,7 +94,7 @@ sealed class InstanceRunningState : IDisposable {
 			return SendCommandToInstanceResult.UnknownError;
 		}
 	}
-
+	
 	public void OnStopInitiated() {
 		backupScheduler.Stop();
 		playerCountTracker.Stop();
@@ -105,10 +105,10 @@ sealed class InstanceRunningState : IDisposable {
 			if (isDisposed) {
 				return false;
 			}
-
+			
 			isDisposed = true;
 		}
-
+		
 		OnStopInitiated();
 		logSender.Stop();
 		
@@ -116,7 +116,7 @@ sealed class InstanceRunningState : IDisposable {
 		
 		return true;
 	}
-
+	
 	public void Dispose() {
 		TryDispose();
 	}

Agent/Phantom.Agent.Services/Instances/State/InstanceStopProcedure.cs

@@ -8,11 +8,11 @@ namespace Phantom.Agent.Services.Instances.State;
 
 static class InstanceStopProcedure {
 	private static readonly ushort[] Stops = { 60, 30, 10, 5, 4, 3, 2, 1, 0 };
-
+	
 	public static async Task<bool> Run(InstanceContext context, MinecraftStopStrategy stopStrategy, InstanceRunningState runningState, Action<IInstanceStatus> reportStatus, CancellationToken cancellationToken) {
 		var process = runningState.Process;
 		runningState.IsStopping = true;
-
+		
 		var seconds = stopStrategy.Seconds;
 		if (seconds > 0) {
 			try {
@@ -22,7 +22,7 @@ static class InstanceStopProcedure {
 				return false;
 			}
 		}
-
+		
 		try {
 			// Too late to cancel the stop procedure now.
 			runningState.OnStopInitiated();
@@ -36,19 +36,19 @@ static class InstanceStopProcedure {
 			reportStatus(InstanceStatus.NotRunning);
 			context.ReportEvent(InstanceEvent.Stopped);
 		}
-
+		
 		return true;
 	}
-
+	
 	private static async Task CountDownWithAnnouncements(InstanceContext context, InstanceProcess process, ushort seconds, CancellationToken cancellationToken) {
 		context.Logger.Information("Session stopping in {Seconds} seconds.", seconds);
-
+		
 		foreach (var stop in Stops) {
 			// TODO change to event-based cancellation
 			if (process.HasEnded) {
 				return;
 			}
-
+			
 			if (seconds > stop) {
 				await process.SendCommand(GetCountDownAnnouncementCommand(seconds), cancellationToken);
 				await Task.Delay(TimeSpan.FromSeconds(seconds - stop), cancellationToken);
@@ -56,19 +56,19 @@ static class InstanceStopProcedure {
 			}
 		}
 	}
-
+	
 	private static string GetCountDownAnnouncementCommand(ushort seconds) {
 		return MinecraftCommand.Say("Server shutting down in " + seconds + (seconds == 1 ? " second." : " seconds."));
 	}
-
+	
 	private static async Task DoStop(InstanceContext context, InstanceProcess process) {
 		context.Logger.Information("Sending stop command...");
 		await TrySendStopCommand(context, process);
-
+		
 		context.Logger.Information("Waiting for session to end...");
 		await WaitForSessionToEnd(context, process);
 	}
-
+	
 	private static async Task TrySendStopCommand(InstanceContext context, InstanceProcess process) {
 		using var timeout = new CancellationTokenSource(TimeSpan.FromSeconds(5));
 		try {
@@ -83,7 +83,7 @@ static class InstanceStopProcedure {
 			context.Logger.Warning(e, "Caught exception while sending stop command.");
 		}
 	}
-
+	
 	private static async Task WaitForSessionToEnd(InstanceContext context, InstanceProcess process) {
 		try {
 			await process.WaitForExit(TimeSpan.FromSeconds(55));

Agent/Phantom.Agent.Services/Phantom.Agent.Services.csproj

@@ -8,7 +8,6 @@
   <ItemGroup>
     <ProjectReference Include="..\..\Common\Phantom.Common.Messages.Agent\Phantom.Common.Messages.Agent.csproj" />
     <ProjectReference Include="..\Phantom.Agent.Minecraft\Phantom.Agent.Minecraft.csproj" />
-    <ProjectReference Include="..\Phantom.Agent.Rpc\Phantom.Agent.Rpc.csproj" />
   </ItemGroup>
 
 </Project>

Agent/Phantom.Agent.Services/Rpc/ControllerConnection.cs

@@ -0,0 +1,20 @@
+using Phantom.Common.Messages.Agent;
+using Phantom.Utils.Actor;
+using Phantom.Utils.Rpc.Runtime;
+
+namespace Phantom.Agent.Services.Rpc;
+
+public sealed class ControllerConnection(RpcSendChannel<IMessageToController> sendChannel) {
+	public ValueTask Send<TMessage>(TMessage message, CancellationToken cancellationToken) where TMessage : IMessageToController {
+		return sendChannel.SendMessage(message, cancellationToken);
+	}
+	
+	// TODO handle properly
+	public bool TrySend<TMessage>(TMessage message) where TMessage : IMessageToController {
+		return sendChannel.TrySendMessage(message);
+	}
+	
+	public Task<TReply> Send<TMessage, TReply>(TMessage message, TimeSpan waitForReplyTime, CancellationToken cancellationToken) where TMessage : IMessageToController, ICanReply<TReply> {
+		return sendChannel.SendMessage<TMessage, TReply>(message, waitForReplyTime, cancellationToken);
+	}
+}

Agent/Phantom.Agent.Services/Rpc/ControllerMessageHandlerActor.cs

@@ -1,101 +1,43 @@
 using Phantom.Agent.Services.Instances;
 using Phantom.Common.Data;
-using Phantom.Common.Data.Instance;
 using Phantom.Common.Data.Replies;
 using Phantom.Common.Messages.Agent;
-using Phantom.Common.Messages.Agent.BiDirectional;
 using Phantom.Common.Messages.Agent.ToAgent;
-using Phantom.Common.Messages.Agent.ToController;
 using Phantom.Utils.Actor;
-using Phantom.Utils.Logging;
-using Phantom.Utils.Rpc.Runtime;
-using Serilog;
 
 namespace Phantom.Agent.Services.Rpc;
 
 public sealed class ControllerMessageHandlerActor : ReceiveActor<IMessageToAgent> {
-	private static ILogger Logger { get; } = PhantomLogger.Create<ControllerMessageHandlerActor>();
-
-	public readonly record struct Init(RpcConnectionToServer<IMessageToController> Connection, AgentServices Agent, CancellationTokenSource ShutdownTokenSource);
+	public readonly record struct Init(AgentServices Agent);
 	
 	public static Props<IMessageToAgent> Factory(Init init) {
 		return Props<IMessageToAgent>.Create(() => new ControllerMessageHandlerActor(init), new ActorConfiguration { SupervisorStrategy = SupervisorStrategies.Resume });
 	}
 	
-	private readonly RpcConnectionToServer<IMessageToController> connection;
 	private readonly AgentServices agent;
-	private readonly CancellationTokenSource shutdownTokenSource;
-
+	
 	private ControllerMessageHandlerActor(Init init) {
-		this.connection = init.Connection;
 		this.agent = init.Agent;
-		this.shutdownTokenSource = init.ShutdownTokenSource;
 		
-		ReceiveAsync<RegisterAgentSuccessMessage>(HandleRegisterAgentSuccess);
-		Receive<RegisterAgentFailureMessage>(HandleRegisterAgentFailure);
 		ReceiveAndReplyLater<ConfigureInstanceMessage, Result<ConfigureInstanceResult, InstanceActionFailure>>(HandleConfigureInstance);
 		ReceiveAndReplyLater<LaunchInstanceMessage, Result<LaunchInstanceResult, InstanceActionFailure>>(HandleLaunchInstance);
 		ReceiveAndReplyLater<StopInstanceMessage, Result<StopInstanceResult, InstanceActionFailure>>(HandleStopInstance);
 		ReceiveAndReplyLater<SendCommandToInstanceMessage, Result<SendCommandToInstanceResult, InstanceActionFailure>>(HandleSendCommandToInstance);
-		Receive<ReplyMessage>(HandleReply);
-	}
-
-	private async Task HandleRegisterAgentSuccess(RegisterAgentSuccessMessage message) {
-		Logger.Information("Agent authentication successful.");
-
-		void ShutdownAfterConfigurationFailed(Guid instanceGuid, InstanceConfiguration configuration) {
-			Logger.Fatal("Unable to configure instance \"{Name}\" (GUID {Guid}), shutting down.", configuration.InstanceName, instanceGuid);
-			shutdownTokenSource.Cancel();
-		}
-		
-		foreach (var configureInstanceMessage in message.InitialInstanceConfigurations) {
-			var result = await HandleConfigureInstance(configureInstanceMessage, alwaysReportStatus: true);
-			if (!result.Is(ConfigureInstanceResult.Success)) {
-				ShutdownAfterConfigurationFailed(configureInstanceMessage.InstanceGuid, configureInstanceMessage.Configuration);
-				return;
-			}
-		}
-
-		connection.SetIsReady();
-		
-		await connection.Send(new AdvertiseJavaRuntimesMessage(agent.JavaRuntimeRepository.All));
-		agent.InstanceTicketManager.RefreshAgentStatus();
-	}
-
-	private void HandleRegisterAgentFailure(RegisterAgentFailureMessage message) {
-		string errorMessage = message.FailureKind switch {
-			RegisterAgentFailure.ConnectionAlreadyHasAnAgent => "This connection already has an associated agent.",
-			RegisterAgentFailure.InvalidToken                => "Invalid token.",
-			_                                                => "Unknown error " + (byte) message.FailureKind + "."
-		};
-
-		Logger.Fatal("Agent authentication failed: {Error}", errorMessage);
-		
-		PhantomLogger.Dispose();
-		Environment.Exit(1);
-	}
-	
-	private Task<Result<ConfigureInstanceResult, InstanceActionFailure>> HandleConfigureInstance(ConfigureInstanceMessage message, bool alwaysReportStatus) {
-		return agent.InstanceManager.Request(new InstanceManagerActor.ConfigureInstanceCommand(message.InstanceGuid, message.Configuration, message.LaunchProperties, message.LaunchNow, alwaysReportStatus));
 	}
 	
 	private async Task<Result<ConfigureInstanceResult, InstanceActionFailure>> HandleConfigureInstance(ConfigureInstanceMessage message) {
-		return await HandleConfigureInstance(message, alwaysReportStatus: false);
+		return await agent.InstanceManager.Request(new InstanceManagerActor.ConfigureInstanceCommand(message.InstanceGuid, message.Configuration, message.LaunchProperties, message.LaunchNow, AlwaysReportStatus: false));
 	}
-
+	
 	private async Task<Result<LaunchInstanceResult, InstanceActionFailure>> HandleLaunchInstance(LaunchInstanceMessage message) {
 		return await agent.InstanceManager.Request(new InstanceManagerActor.LaunchInstanceCommand(message.InstanceGuid));
 	}
-
+	
 	private async Task<Result<StopInstanceResult, InstanceActionFailure>> HandleStopInstance(StopInstanceMessage message) {
 		return await agent.InstanceManager.Request(new InstanceManagerActor.StopInstanceCommand(message.InstanceGuid, message.StopStrategy));
 	}
-
+	
 	private async Task<Result<SendCommandToInstanceResult, InstanceActionFailure>> HandleSendCommandToInstance(SendCommandToInstanceMessage message) {
 		return await agent.InstanceManager.Request(new InstanceManagerActor.SendCommandToInstanceCommand(message.InstanceGuid, message.Command));
 	}
-
-	private void HandleReply(ReplyMessage message) {
-		connection.Receive(message);
-	}
 }

Agent/Phantom.Agent/AgentKey.cs

@@ -1,4 +1,4 @@
-using NetMQ;
+using System.Text;
 using Phantom.Common.Data;
 using Phantom.Utils.Cryptography;
 using Phantom.Utils.IO;
@@ -9,8 +9,8 @@ namespace Phantom.Agent;
 
 static class AgentKey {
 	private static ILogger Logger { get; } = PhantomLogger.Create(nameof(AgentKey));
-
-	public static Task<(NetMQCertificate, AuthToken)?> Load(string? agentKeyToken, string? agentKeyFilePath) {
+	
+	public static Task<ConnectionKey?> Load(string? agentKeyToken, string? agentKeyFilePath) {
 		if (agentKeyFilePath != null) {
 			return LoadFromFile(agentKeyFilePath);
 		}
@@ -21,27 +21,28 @@ static class AgentKey {
 			throw new InvalidOperationException();
 		}
 	}
-
-	private static async Task<(NetMQCertificate, AuthToken)?> LoadFromFile(string agentKeyFilePath) {
+	
+	private static async Task<ConnectionKey?> LoadFromFile(string agentKeyFilePath) {
 		if (!File.Exists(agentKeyFilePath)) {
 			Logger.Fatal("Missing agent key file: {AgentKeyFilePath}", agentKeyFilePath);
 			return null;
 		}
-
+		
 		try {
-			Files.RequireMaximumFileSize(agentKeyFilePath, 64);
-			return LoadFromBytes(await File.ReadAllBytesAsync(agentKeyFilePath));
+			Files.RequireMaximumFileSize(agentKeyFilePath, maximumBytes: 64);
+			string[] lines = await File.ReadAllLinesAsync(agentKeyFilePath, Encoding.UTF8);
+			return LoadFromToken(lines[0]);
 		} catch (IOException e) {
 			Logger.Fatal("Error loading agent key from file: {AgentKeyFilePath}", agentKeyFilePath);
-			Logger.Fatal(e.Message);
+			Logger.Fatal("{}", e.Message);
 			return null;
 		} catch (Exception) {
 			Logger.Fatal("File does not contain a valid agent key: {AgentKeyFilePath}", agentKeyFilePath);
 			return null;
 		}
 	}
-
-	private static (NetMQCertificate, AuthToken)? LoadFromToken(string agentKey) {
+	
+	private static ConnectionKey? LoadFromToken(string agentKey) {
 		try {
 			return LoadFromBytes(TokenGenerator.DecodeBytes(agentKey));
 		} catch (Exception) {
@@ -49,12 +50,10 @@ static class AgentKey {
 			return null;
 		}
 	}
-
-	private static (NetMQCertificate, AuthToken)? LoadFromBytes(byte[] agentKey) {
-		var (publicKey, agentToken) = ConnectionCommonKey.FromBytes(agentKey);
-		var controllerCertificate = NetMQCertificate.FromPublicKey(publicKey);
-		
+	
+	private static ConnectionKey? LoadFromBytes(byte[] agentKey) {
+		var connectionKey = ConnectionKey.FromBytes(agentKey);
 		Logger.Information("Loaded agent key.");
-		return (controllerCertificate, agentToken);
+		return connectionKey;
 	}
 }

Agent/Phantom.Agent/GuidFile.cs

@@ -7,12 +7,12 @@ namespace Phantom.Agent;
 
 static class GuidFile {
 	private static ILogger Logger { get; } = PhantomLogger.Create(nameof(GuidFile));
-
+	
 	private const string GuidFileName = "agent.guid";
 	
 	public static async Task<Guid?> CreateOrLoad(string folderPath) {
 		string filePath = Path.Combine(folderPath, GuidFileName);
-
+		
 		if (File.Exists(filePath)) {
 			try {
 				var guid = await LoadGuidFromFile(filePath);
@@ -25,7 +25,7 @@ static class GuidFile {
 		}
 		
 		Logger.Information("Creating agent GUID file: {FilePath}", filePath);
-
+		
 		try {
 			var guid = Guid.NewGuid();
 			await File.WriteAllTextAsync(filePath, guid.ToString(), Encoding.ASCII);

Agent/Phantom.Agent/Program.cs

@@ -1,7 +1,5 @@
 using System.Reflection;
-using NetMQ;
 using Phantom.Agent;
-using Phantom.Agent.Rpc;
 using Phantom.Agent.Services;
 using Phantom.Agent.Services.Rpc;
 using Phantom.Common.Data.Agent;
@@ -9,9 +7,9 @@ using Phantom.Common.Messages.Agent;
 using Phantom.Common.Messages.Agent.ToController;
 using Phantom.Utils.Actor;
 using Phantom.Utils.Logging;
-using Phantom.Utils.Rpc;
-using Phantom.Utils.Rpc.Sockets;
+using Phantom.Utils.Rpc.Runtime.Client;
 using Phantom.Utils.Runtime;
+using Phantom.Utils.Threading;
 
 const int ProtocolVersion = 1;
 
@@ -27,56 +25,78 @@ PosixSignals.RegisterCancellation(shutdownCancellationTokenSource, static () =>
 
 try {
 	var fullVersion = AssemblyAttributes.GetFullVersion(Assembly.GetExecutingAssembly());
-
+	
 	PhantomLogger.Root.InformationHeading("Initializing Phantom Panel agent...");
 	PhantomLogger.Root.Information("Agent version: {Version}", fullVersion);
-
+	
 	var (controllerHost, controllerPort, javaSearchPath, agentKeyToken, agentKeyFilePath, agentName, maxInstances, maxMemory, allowedServerPorts, allowedRconPorts, maxConcurrentBackupCompressionTasks) = Variables.LoadOrStop();
-
+	
 	var agentKey = await AgentKey.Load(agentKeyToken, agentKeyFilePath);
 	if (agentKey == null) {
 		return 1;
 	}
-
+	
 	var folders = new AgentFolders("./data", "./temp", javaSearchPath);
 	if (!folders.TryCreate()) {
 		return 1;
 	}
-
+	
 	var agentGuid = await GuidFile.CreateOrLoad(folders.DataFolderPath);
 	if (agentGuid == null) {
 		return 1;
 	}
-
-	var (controllerCertificate, agentToken) = agentKey.Value;
-	var agentInfo = new AgentInfo(agentGuid.Value, agentName, ProtocolVersion, fullVersion, maxInstances, maxMemory, allowedServerPorts, allowedRconPorts);
 	
-	PhantomLogger.Root.InformationHeading("Launching Phantom Panel agent...");
+	var rpcClientConnectionParameters = new RpcClientConnectionParameters(
+		Host: controllerHost,
+		Port: controllerPort,
+		DistinguishedName: "phantom-controller",
+		CertificateThumbprint: agentKey.Value.CertificateThumbprint,
+		AuthToken: agentKey.Value.AuthToken,
+		SendQueueCapacity: 500,
+		PingInterval: TimeSpan.FromSeconds(10)
+	);
 	
-	var rpcConfiguration = new RpcConfiguration("Agent", controllerHost, controllerPort, controllerCertificate);
-	var rpcSocket = RpcClientSocket.Connect(rpcConfiguration, AgentMessageRegistries.Definitions, new RegisterAgentMessage(agentToken, agentInfo));
-
-	var agentServices = new AgentServices(agentInfo, folders, new AgentServiceConfiguration(maxConcurrentBackupCompressionTasks), new ControllerConnection(rpcSocket.Connection));
-	await agentServices.Initialize();
-
-	var rpcMessageHandlerInit = new ControllerMessageHandlerActor.Init(rpcSocket.Connection, agentServices, shutdownCancellationTokenSource);
-	var rpcMessageHandlerActor = agentServices.ActorSystem.ActorOf(ControllerMessageHandlerActor.Factory(rpcMessageHandlerInit), "ControllerMessageHandler");
-	
-	var rpcDisconnectSemaphore = new SemaphoreSlim(0, 1);
-	var rpcTask = RpcClientRuntime.Launch(rpcSocket, rpcMessageHandlerActor, rpcDisconnectSemaphore, shutdownCancellationToken);
-	try {
-		await rpcTask.WaitAsync(shutdownCancellationToken);
-	} finally {
-		shutdownCancellationTokenSource.Cancel();
-		await agentServices.Shutdown();
-
-		rpcDisconnectSemaphore.Release();
-		await rpcTask;
-		rpcDisconnectSemaphore.Dispose();
-		
-		NetMQConfig.Cleanup();
+	using var rpcClient = await RpcClient<IMessageToController, IMessageToAgent>.Connect("Controller", rpcClientConnectionParameters, AgentMessageRegistries.Definitions, shutdownCancellationToken);
+	if (rpcClient == null) {
+		return 1;
 	}
-
+	
+	var controllerConnection = new ControllerConnection(rpcClient.SendChannel);
+	
+	Task? rpcClientListener = null;
+	try {
+		PhantomLogger.Root.InformationHeading("Launching Phantom Panel agent...");
+		
+		var agentInfo = new AgentInfo(agentGuid.Value, agentName, ProtocolVersion, fullVersion, maxInstances, maxMemory, allowedServerPorts, allowedRconPorts);
+		var agentServices = new AgentServices(agentInfo, folders, new AgentServiceConfiguration(maxConcurrentBackupCompressionTasks), controllerConnection);
+		await agentServices.Initialize();
+		
+		var rpcMessageHandlerInit = new ControllerMessageHandlerActor.Init(agentServices);
+		var rpcMessageHandlerActor = agentServices.ActorSystem.ActorOf(ControllerMessageHandlerActor.Factory(rpcMessageHandlerInit), "ControllerMessageHandler");
+		
+		rpcClientListener = rpcClient.Listen(rpcMessageHandlerActor);
+		
+		if (await agentServices.Register(controllerConnection, shutdownCancellationToken)) {
+			PhantomLogger.Root.Information("Phantom Panel agent is ready.");
+			await shutdownCancellationToken.WaitHandle.WaitOneAsync();
+		}
+		
+		await agentServices.Shutdown();
+	} finally {
+		try {
+			await controllerConnection.Send(new UnregisterAgentMessage(), CancellationToken.None);
+			// TODO wait for acknowledgment
+		} catch (Exception e) {
+			PhantomLogger.Root.Warning(e, "Could not unregister agent after shutdown.");
+		} finally {
+			await rpcClient.Shutdown();
+			
+			if (rpcClientListener != null) {
+				await rpcClientListener;
+			}
+		}
+	}
+	
 	return 0;
 } catch (OperationCanceledException) {
 	return 0;
@@ -87,7 +107,7 @@ try {
 	return 1;
 } finally {
 	shutdownCancellationTokenSource.Dispose();
-
+	
 	PhantomLogger.Root.Information("Bye!");
 	PhantomLogger.Dispose();
 }

Agent/Phantom.Agent/Variables.cs

@@ -21,7 +21,7 @@ sealed record Variables(
 	private static Variables LoadOrThrow() {
 		var (agentKeyToken, agentKeyFilePath) = EnvironmentVariables.GetEitherString("AGENT_KEY", "AGENT_KEY_FILE").Require;
 		var javaSearchPath = EnvironmentVariables.GetString("JAVA_SEARCH_PATH").WithDefaultGetter(GetDefaultJavaSearchPath);
-
+		
 		return new Variables(
 			EnvironmentVariables.GetString("CONTROLLER_HOST").Require,
 			EnvironmentVariables.GetPortNumber("CONTROLLER_PORT").WithDefault(9401),
@@ -36,11 +36,11 @@ sealed record Variables(
 			(ushort) EnvironmentVariables.GetInteger("MAX_CONCURRENT_BACKUP_COMPRESSION_TASKS", min: 1, max: 10000).WithDefault(1)
 		);
 	}
-
+	
 	private static string GetDefaultJavaSearchPath() {
 		return JavaRuntimeDiscovery.GetSystemSearchPath() ?? throw new Exception("Could not automatically determine the path to Java installations on this system. Please set the JAVA_SEARCH_PATH environment variable to the folder containing Java installations.");
 	}
-
+	
 	public static Variables LoadOrStop() {
 		try {
 			return LoadOrThrow();

Common/Phantom.Common.Data.Tests/RamAllocationUnitsTests.cs

@@ -8,7 +8,7 @@ public sealed class RamAllocationUnitsTests {
 		private Action CallFromMegabytes(int value) {
 			return () => RamAllocationUnits.FromMegabytes(value);
 		}
-
+		
 		[TestCase(1)]
 		[TestCase(-1)]
 		[TestCase(255)]
@@ -24,13 +24,13 @@ public sealed class RamAllocationUnitsTests {
 		public void LessThan256MegabytesThrows(int value) {
 			Assert.That(CallFromMegabytes(value), Throws.Exception.TypeOf<ArgumentOutOfRangeException>().With.Message.StartsWith("Must be at least 0 MB."));
 		}
-
+		
 		[TestCase(16777216)]
 		[TestCase(int.MaxValue - 255)]
 		public void MoreThan16TerabytesThrows(int value) {
 			Assert.That(CallFromMegabytes(value), Throws.Exception.TypeOf<ArgumentOutOfRangeException>().With.Message.StartsWith("Must be at most " + (256 * 65535) + " MB."));
 		}
-
+		
 		[TestCase(0)]
 		[TestCase(256)]
 		[TestCase(512)]
@@ -41,17 +41,17 @@ public sealed class RamAllocationUnitsTests {
 			Assert.That(RamAllocationUnits.FromMegabytes(value).InMegabytes, Is.EqualTo(value));
 		}
 	}
-
+	
 	public sealed class FromString {
 		private Action CallFromString(string definition) {
 			return () => RamAllocationUnits.FromString(definition);
 		}
-
+		
 		[Test]
 		public void EmptyThrows() {
 			Assert.That(CallFromString(""), Throws.Exception.TypeOf<ArgumentOutOfRangeException>().With.Message.StartsWith("Must not be empty."));
 		}
-
+		
 		[Test]
 		public void MissingUnitThrows() {
 			Assert.That(CallFromString("256"), Throws.Exception.TypeOf<ArgumentOutOfRangeException>().With.Message.StartsWith("Must end with "));
@@ -66,7 +66,7 @@ public sealed class RamAllocationUnitsTests {
 		public void UnparseableValueThrows() {
 			Assert.That(CallFromString("123A5M"), Throws.Exception.TypeOf<ArgumentOutOfRangeException>().With.Message.StartsWith("Must begin with a number."));
 		}
-
+		
 		[TestCase("0m", 0)]
 		[TestCase("256m", 256)]
 		[TestCase("256M", 256)]
@@ -76,7 +76,7 @@ public sealed class RamAllocationUnitsTests {
 		public void ValidDefinitionInMegabytesIsParsedCorrectly(string definition, int megabytes) {
 			Assert.That(RamAllocationUnits.FromString(definition).InMegabytes, Is.EqualTo(megabytes));
 		}
-
+		
 		[TestCase("0g", 0)]
 		[TestCase("1g", 1024)]
 		[TestCase("1G", 1024)]

Common/Phantom.Common.Data.Web/Agent/IAgentConnectionStatus.cs

@@ -20,7 +20,7 @@ public sealed partial record AgentIsOnline : IAgentConnectionStatus;
 public static class AgentConnectionStatus {
 	public static readonly IAgentConnectionStatus Offline = new AgentIsOffline();
 	public static readonly IAgentConnectionStatus Online = new AgentIsOnline();
-
+	
 	public static IAgentConnectionStatus Disconnected(DateTimeOffset lastPingTime) {
 		return new AgentIsDisconnected(lastPingTime);
 	}

Common/Phantom.Common.Data.Web/AuditLog/AuditLogEventType.cs

@@ -32,7 +32,7 @@ public static class AuditLogEventTypeExtensions {
 		{ AuditLogEventType.InstanceStopped,           AuditLogSubjectType.Instance },
 		{ AuditLogEventType.InstanceCommandExecuted,   AuditLogSubjectType.Instance }
 	};
-
+	
 	static AuditLogEventTypeExtensions() {
 		foreach (var eventType in Enum.GetValues<AuditLogEventType>()) {
 			if (!SubjectTypes.ContainsKey(eventType)) {
@@ -40,7 +40,7 @@ public static class AuditLogEventTypeExtensions {
 			}
 		}
 	}
-
+	
 	public static AuditLogSubjectType GetSubjectType(this AuditLogEventType type) {
 		return SubjectTypes[type];
 	}

Common/Phantom.Common.Data.Web/EventLog/EventLogEventType.cs

@@ -20,7 +20,7 @@ public static class EventLogEventTypeExtensions {
 		{ EventLogEventType.InstanceBackupSucceededWithWarnings, EventLogSubjectType.Instance },
 		{ EventLogEventType.InstanceBackupFailed, EventLogSubjectType.Instance }
 	};
-
+	
 	static EventLogEventTypeExtensions() {
 		foreach (var eventType in Enum.GetValues<EventLogEventType>()) {
 			if (!SubjectTypes.ContainsKey(eventType)) {
@@ -28,7 +28,7 @@ public static class EventLogEventTypeExtensions {
 			}
 		}
 	}
-
+	
 	public static EventLogSubjectType GetSubjectType(this EventLogEventType type) {
 		return SubjectTypes[type];
 	}

Common/Phantom.Common.Data.Web/Minecraft/JvmArgumentsHelper.cs

@@ -6,20 +6,20 @@ public static class JvmArgumentsHelper {
 	public static ImmutableArray<string> Split(string arguments) {
 		return arguments.Split('\n', StringSplitOptions.TrimEntries | StringSplitOptions.RemoveEmptyEntries).ToImmutableArray();
 	}
-
+	
 	public static string Join(ImmutableArray<string> arguments) {
 		return string.Join('\n', arguments);
 	}
-
+	
 	public static ValidationError? Validate(string arguments) {
 		return Validate(Split(arguments));
 	}
-
+	
 	private static ValidationError? Validate(ImmutableArray<string> arguments) {
 		if (!arguments.All(static argument => argument.StartsWith('-'))) {
 			return ValidationError.InvalidFormat;
 		}
-
+		
 		// TODO not perfect, but good enough
 		if (arguments.Any(static argument => argument.Contains("-Xmx"))) {
 			return ValidationError.XmxNotAllowed;
@@ -31,7 +31,7 @@ public static class JvmArgumentsHelper {
 		
 		return null;
 	}
-
+	
 	public enum ValidationError {
 		InvalidFormat,
 		XmxNotAllowed,

Common/Phantom.Common.Data.Web/Phantom.Common.Data.Web.csproj

@@ -13,5 +13,5 @@
   <ItemGroup>
     <ProjectReference Include="..\Phantom.Common.Data\Phantom.Common.Data.csproj" />
   </ItemGroup>
-  
+
 </Project>

Common/Phantom.Common.Data.Web/Users/AddUserError.cs

@@ -16,13 +16,13 @@ namespace Phantom.Common.Data.Web.Users {
 namespace Phantom.Common.Data.Web.Users.AddUserErrors {
 	[MemoryPackable(GenerateType.VersionTolerant)]
 	public sealed partial record NameIsInvalid([property: MemoryPackOrder(0)] UsernameRequirementViolation Violation) : AddUserError;
-
+	
 	[MemoryPackable(GenerateType.VersionTolerant)]
 	public sealed partial record PasswordIsInvalid([property: MemoryPackOrder(0)] ImmutableArray<PasswordRequirementViolation> Violations) : AddUserError;
-
+	
 	[MemoryPackable(GenerateType.VersionTolerant)]
 	public sealed partial record NameAlreadyExists : AddUserError;
-
+	
 	[MemoryPackable(GenerateType.VersionTolerant)]
 	public sealed partial record UnknownError : AddUserError;
 }

Common/Phantom.Common.Data.Web/Users/AuthenticatedUserInfo.cs

@@ -13,11 +13,11 @@ public sealed partial record AuthenticatedUserInfo(
 	public bool CheckPermission(Permission permission) {
 		return Permissions.Check(permission);
 	}
-
+	
 	public bool HasAccessToAgent(Guid agentGuid) {
 		return ManagedAgentGuids.Contains(agentGuid) || Permissions.Check(Permission.ManageAllAgents);
 	}
-
+	
 	public ImmutableHashSet<Guid> FilterAccessibleAgentGuids(ImmutableHashSet<Guid> agentGuids) {
 		return Permissions.Check(Permission.ManageAllAgents) ? agentGuids : agentGuids.Intersect(ManagedAgentGuids);
 	}

Common/Phantom.Common.Data.Web/Users/ChangeUserRolesResult.cs

@@ -1,7 +1,7 @@
 using System.Collections.Immutable;
 using MemoryPack;
 
-namespace Phantom.Common.Data.Web.Users; 
+namespace Phantom.Common.Data.Web.Users;
 
 [MemoryPackable(GenerateType.VersionTolerant)]
 public sealed partial record ChangeUserRolesResult(

Common/Phantom.Common.Data.Web/Users/CreateOrUpdateAdministratorUserResult.cs

@@ -16,16 +16,16 @@ namespace Phantom.Common.Data.Web.Users {
 namespace Phantom.Common.Data.Web.Users.CreateOrUpdateAdministratorUserResults {
 	[MemoryPackable(GenerateType.VersionTolerant)]
 	public sealed partial record Success([property: MemoryPackOrder(0)] UserInfo User) : CreateOrUpdateAdministratorUserResult;
-
+	
 	[MemoryPackable(GenerateType.VersionTolerant)]
 	public sealed partial record CreationFailed([property: MemoryPackOrder(0)] AddUserError Error) : CreateOrUpdateAdministratorUserResult;
-
+	
 	[MemoryPackable(GenerateType.VersionTolerant)]
 	public sealed partial record UpdatingFailed([property: MemoryPackOrder(0)] SetUserPasswordError Error) : CreateOrUpdateAdministratorUserResult;
-
+	
 	[MemoryPackable(GenerateType.VersionTolerant)]
 	public sealed partial record AddingToRoleFailed : CreateOrUpdateAdministratorUserResult;
-
+	
 	[MemoryPackable(GenerateType.VersionTolerant)]
 	public sealed partial record UnknownError : CreateOrUpdateAdministratorUserResult;
 }

Common/Phantom.Common.Data.Web/Users/CreateUserResult.cs

@@ -14,10 +14,10 @@ namespace Phantom.Common.Data.Web.Users {
 namespace Phantom.Common.Data.Web.Users.CreateUserResults {
 	[MemoryPackable(GenerateType.VersionTolerant)]
 	public sealed partial record Success([property: MemoryPackOrder(0)] UserInfo User) : CreateUserResult;
-
+	
 	[MemoryPackable(GenerateType.VersionTolerant)]
 	public sealed partial record CreationFailed([property: MemoryPackOrder(0)] AddUserError Error) : CreateUserResult;
-
+	
 	[MemoryPackable(GenerateType.VersionTolerant)]
 	public sealed partial record UnknownError : CreateUserResult;
 }

Common/Phantom.Common.Data.Web/Users/PasswordRequirementViolation.cs

@@ -15,13 +15,13 @@ namespace Phantom.Common.Data.Web.Users {
 namespace Phantom.Common.Data.Web.Users.PasswordRequirementViolations {
 	[MemoryPackable(GenerateType.VersionTolerant)]
 	public sealed partial record TooShort([property: MemoryPackOrder(0)] int MinimumLength) : PasswordRequirementViolation;
-
+	
 	[MemoryPackable(GenerateType.VersionTolerant)]
 	public sealed partial record MustContainLowercaseLetter : PasswordRequirementViolation;
-
+	
 	[MemoryPackable(GenerateType.VersionTolerant)]
 	public sealed partial record MustContainUppercaseLetter : PasswordRequirementViolation;
-
+	
 	[MemoryPackable(GenerateType.VersionTolerant)]
 	public sealed partial record MustContainDigit : PasswordRequirementViolation;
 }

Common/Phantom.Common.Data.Web/Users/Permission.cs

@@ -9,11 +9,11 @@ public sealed record Permission(string Id, Permission? Parent) {
 		AllPermissions.Add(permission);
 		return permission;
 	}
-
+	
 	private Permission RegisterChild(string id) {
 		return Register(id, this);
 	}
-
+	
 	public const string ManageAllAgentsPolicy = "Agents.ManageAll";
 	public static readonly Permission ManageAllAgents = Register(ManageAllAgentsPolicy);
 	

Common/Phantom.Common.Data.Web/Users/PermissionSet.cs

@@ -10,20 +10,20 @@ public sealed partial class PermissionSet {
 	[MemoryPackOrder(0)]
 	[MemoryPackInclude]
 	private readonly ImmutableHashSet<string> permissionIds;
-
+	
 	public PermissionSet(ImmutableHashSet<string> permissionIds) {
 		this.permissionIds = permissionIds;
 	}
-
+	
 	public bool Check(Permission? permission) {
 		while (permission != null) {
 			if (!permissionIds.Contains(permission.Id)) {
 				return false;
 			}
-
+			
 			permission = permission.Parent;
 		}
-
+		
 		return true;
 	}
 }

Common/Phantom.Common.Data.Web/Users/SetUserPasswordError.cs

@@ -15,10 +15,10 @@ namespace Phantom.Common.Data.Web.Users {
 namespace Phantom.Common.Data.Web.Users.SetUserPasswordErrors {
 	[MemoryPackable(GenerateType.VersionTolerant)]
 	public sealed partial record UserNotFound : SetUserPasswordError;
-
+	
 	[MemoryPackable(GenerateType.VersionTolerant)]
 	public sealed partial record PasswordIsInvalid([property: MemoryPackOrder(0)] ImmutableArray<PasswordRequirementViolation> Violations) : SetUserPasswordError;
-
+	
 	[MemoryPackable(GenerateType.VersionTolerant)]
 	public sealed partial record UnknownError : SetUserPasswordError;
 }

Common/Phantom.Common.Data.Web/Users/UserPasswords.cs

@@ -4,7 +4,7 @@ public static class UserPasswords {
 	public static string Hash(string password) {
 		return BCrypt.Net.BCrypt.HashPassword(password, workFactor: 12);
 	}
-
+	
 	public static bool Verify(string password, string hash) {
 		// TODO rehash
 		return BCrypt.Net.BCrypt.Verify(password, hash);

Common/Phantom.Common.Data.Web/Users/UsernameRequirementViolation.cs

@@ -13,7 +13,7 @@ namespace Phantom.Common.Data.Web.Users {
 namespace Phantom.Common.Data.Web.Users.UsernameRequirementViolations {
 	[MemoryPackable(GenerateType.VersionTolerant)]
 	public sealed partial record IsEmpty : UsernameRequirementViolation;
-
+	
 	[MemoryPackable(GenerateType.VersionTolerant)]
 	public sealed partial record TooLong([property: MemoryPackOrder(0)] int MaxLength) : UsernameRequirementViolation;
 }

Common/Phantom.Common.Data/AllowedPorts.cs

@@ -8,35 +8,35 @@ namespace Phantom.Common.Data;
 public sealed partial class AllowedPorts {
 	[MemoryPackOrder(0)]
 	[MemoryPackInclude]
-	private	readonly ImmutableArray<PortRange> allDefinitions;
-
+	private readonly ImmutableArray<PortRange> allDefinitions;
+	
 	private AllowedPorts(ImmutableArray<PortRange> allDefinitions) {
 		// TODO normalize and deduplicate ranges
 		this.allDefinitions = allDefinitions.Sort(static (def1, def2) => def1.FirstPort - def2.FirstPort);
 	}
-
+	
 	public bool Contains(ushort port) {
 		return allDefinitions.Any(definition => definition.Contains(port));
 	}
-
+	
 	public override string ToString() {
 		var builder = new StringBuilder();
-
+		
 		foreach (var definition in allDefinitions) {
 			definition.ToString(builder);
 			builder.Append(',');
 		}
-
+		
 		if (builder.Length > 0) {
 			builder.Length--;
 		}
-
+		
 		return builder.ToString();
 	}
-
+	
 	private static AllowedPorts FromString(ReadOnlySpan<char> definitions) {
 		List<PortRange> parsedDefinitions = new ();
-
+		
 		while (!definitions.IsEmpty) {
 			int separatorIndex = definitions.IndexOf(',');
 			if (separatorIndex == -1) {
@@ -48,10 +48,10 @@ public sealed partial class AllowedPorts {
 				definitions = definitions[(separatorIndex + 1)..];
 			}
 		}
-
+		
 		return new AllowedPorts(parsedDefinitions.ToImmutableArray());
 	}
-
+	
 	public static AllowedPorts FromString(string definitions) {
 		return FromString(definitions.AsSpan());
 	}

Common/Phantom.Common.Data/AuthToken.cs

@@ -1,37 +0,0 @@
-using System.Diagnostics.CodeAnalysis;
-using System.Security.Cryptography;
-using MemoryPack;
-
-namespace Phantom.Common.Data;
-
-[MemoryPackable(GenerateType.VersionTolerant)]
-[SuppressMessage("ReSharper", "MemberCanBePrivate.Global")]
-public sealed partial class AuthToken {
-	internal const int Length = 12;
-
-	[MemoryPackOrder(0)]
-	[MemoryPackInclude]
-	private readonly byte[] bytes;
-
-	internal AuthToken(byte[]? bytes) {
-		ArgumentNullException.ThrowIfNull(bytes);
-
-		if (bytes.Length != Length) {
-			throw new ArgumentOutOfRangeException(nameof(bytes), "Invalid token length: " + bytes.Length + ". Token length must be exactly " + Length + " bytes.");
-		}
-
-		this.bytes = bytes;
-	}
-
-	public bool FixedTimeEquals(AuthToken providedAuthToken) {
-		return CryptographicOperations.FixedTimeEquals(bytes, providedAuthToken.bytes);
-	}
-
-	internal void WriteTo(Span<byte> span) {
-		bytes.CopyTo(span);
-	}
-
-	public static AuthToken Generate() {
-		return new AuthToken(RandomNumberGenerator.GetBytes(Length));
-	}
-}

Common/Phantom.Common.Data/Backups/BackupCreationWarnings.cs

@@ -14,7 +14,7 @@ public static class BackupCreationWarningsExtensions {
 	public static int Count(this BackupCreationWarnings warnings) {
 		return BitOperations.PopCount((byte) warnings);
 	}
-
+	
 	public static IEnumerable<BackupCreationWarnings> ListFlags(this BackupCreationWarnings warnings) {
 		return Enum.GetValues<BackupCreationWarnings>().Where(warning => warning != BackupCreationWarnings.None && warnings.HasFlag(warning));
 	}

Common/Phantom.Common.Data/ConnectionCommonKey.cs

@@ -1,18 +0,0 @@
-namespace Phantom.Common.Data;
-
-public readonly record struct ConnectionCommonKey(byte[] CertificatePublicKey, AuthToken AuthToken) {
-	private const byte TokenLength = AuthToken.Length;
-
-	public byte[] ToBytes() {
-		Span<byte> result = stackalloc byte[TokenLength + CertificatePublicKey.Length];
-		AuthToken.WriteTo(result[..TokenLength]);
-		CertificatePublicKey.CopyTo(result[TokenLength..]);
-		return result.ToArray();
-	}
-
-	public static ConnectionCommonKey FromBytes(byte[] agentKey) {
-		var authToken = new AuthToken(agentKey[..TokenLength]);
-		var certificatePublicKey = agentKey[TokenLength..];
-		return new ConnectionCommonKey(certificatePublicKey, authToken);
-	}
-}

Common/Phantom.Common.Data/ConnectionKey.cs

@@ -0,0 +1,21 @@
+using Phantom.Utils.Rpc;
+using Phantom.Utils.Rpc.Runtime.Tls;
+
+namespace Phantom.Common.Data;
+
+public readonly record struct ConnectionKey(RpcCertificateThumbprint CertificateThumbprint, AuthToken AuthToken) {
+	private const byte TokenLength = AuthToken.Length;
+
+	public byte[] ToBytes() {
+		Span<byte> result = stackalloc byte[TokenLength + CertificateThumbprint.Bytes.Length];
+		AuthToken.Bytes.CopyTo(result[..TokenLength]);
+		CertificateThumbprint.Bytes.CopyTo(result[TokenLength..]);
+		return result.ToArray();
+	}
+
+	public static ConnectionKey FromBytes(ReadOnlySpan<byte> data) {
+		var authToken = new AuthToken([..data[..TokenLength]]);
+		var certificateThumbprint = RpcCertificateThumbprint.From(data[TokenLength..]);
+		return new ConnectionKey(certificateThumbprint, authToken);
+	}
+}

Common/Phantom.Common.Data/Instance/IInstanceStatus.cs

@@ -57,11 +57,11 @@ public static class InstanceStatus {
 	public static IInstanceStatus Invalid(string reason) => new InstanceIsInvalid(reason);
 	public static IInstanceStatus Downloading(byte progress) => new InstanceIsDownloading(progress);
 	public static IInstanceStatus Failed(InstanceLaunchFailReason reason) => new InstanceIsFailed(reason);
-
+	
 	public static bool IsLaunching(this IInstanceStatus status) {
 		return status is InstanceIsDownloading or InstanceIsLaunching or InstanceIsRestarting;
 	}
-
+	
 	public static bool IsRunning(this IInstanceStatus status) {
 		return status is InstanceIsRunning or InstanceIsBackingUp;
 	}
@@ -73,11 +73,11 @@ public static class InstanceStatus {
 	public static bool CanLaunch(this IInstanceStatus status) {
 		return status is InstanceIsNotRunning or InstanceIsFailed;
 	}
-
+	
 	public static bool CanStop(this IInstanceStatus status) {
 		return status.IsRunning() || status.IsLaunching();
 	}
-
+	
 	public static bool CanSendCommand(this IInstanceStatus status) {
 		return status.IsRunning();
 	}

Common/Phantom.Common.Data/Java/JavaRuntime.cs

@@ -13,28 +13,28 @@ public sealed partial record JavaRuntime(
 		if (ReferenceEquals(this, other)) {
 			return 0;
 		}
-
+		
 		if (ReferenceEquals(null, other)) {
 			return 1;
 		}
-
+		
 		if (TryParseFullVersion(FullVersion, out var fullVersion) && TryParseFullVersion(other.FullVersion, out var otherFullVersion)) {
 			var versionComparison = -fullVersion.CompareTo(otherFullVersion);
 			if (versionComparison != 0) {
 				return versionComparison;
 			}
 		}
-
+		
 		return string.Compare(DisplayName, other.DisplayName, StringComparison.OrdinalIgnoreCase);
 	}
-
+	
 	private static bool TryParseFullVersion(string versionString, [NotNullWhen(true)] out Version? version) {
 		int dashIndex = versionString.IndexOf('-');
 		var versionSpan = dashIndex != -1 ? versionString.AsSpan(0, dashIndex) : versionString;
 		if (versionSpan.Contains('_')) {
 			versionSpan = versionSpan.ToString().Replace('_', '.');
 		}
-
+		
 		return Version.TryParse(versionSpan, out version);
 	}
 }

Common/Phantom.Common.Data/Minecraft/FileDownloadInfo.cs

@@ -20,7 +20,7 @@ public sealed partial class FileDownloadInfo {
 	public FileSize Size { get; }
 	
 	public FileDownloadInfo(string downloadUrl, Sha1String hash, FileSize size) : this(downloadUrl, hash.ToString(), size) {}
-
+	
 	[MemoryPackConstructor]
 	private FileDownloadInfo(string downloadUrl, string hash, FileSize size) {
 		this.DownloadUrl = downloadUrl;

Common/Phantom.Common.Data/Minecraft/MinecraftServerKind.cs

@@ -2,6 +2,5 @@
 
 public enum MinecraftServerKind : ushort {
 	Vanilla = 1,
-	Fabric = 2,
-	Forge = 3
+	Fabric = 2
 }

Common/Phantom.Common.Data/Minecraft/MinecraftVersionType.cs

@@ -15,7 +15,7 @@ public static class MinecraftVersionTypes {
 		MinecraftVersionType.Release,
 		MinecraftVersionType.Snapshot
 	);
-
+	
 	public static MinecraftVersionType FromString(string? type) {
 		return type switch {
 			"release"   => MinecraftVersionType.Release,
@@ -25,7 +25,7 @@ public static class MinecraftVersionTypes {
 			_           => MinecraftVersionType.Other
 		};
 	}
-
+	
 	public static string ToNiceNamePlural(this MinecraftVersionType type) {
 		return type switch {
 			MinecraftVersionType.Release  => "Releases",

Common/Phantom.Common.Data/Phantom.Common.Data.csproj

@@ -11,6 +11,7 @@
   
   <ItemGroup>
     <ProjectReference Include="..\..\Utils\Phantom.Utils\Phantom.Utils.csproj" />
+    <ProjectReference Include="..\..\Utils\Phantom.Utils.Rpc\Phantom.Utils.Rpc.csproj" />
   </ItemGroup>
 
 </Project>

Common/Phantom.Common.Data/PortRange.cs

@@ -11,23 +11,23 @@ readonly partial record struct PortRange(
 	internal bool Contains(ushort port) {
 		return port >= FirstPort && port <= LastPort;
 	}
-
+	
 	internal void ToString(StringBuilder builder) {
 		builder.Append(FirstPort);
-
+		
 		if (LastPort != FirstPort) {
 			builder.Append('-');
 			builder.Append(LastPort);
 		}
 	}
-
+	
 	internal static PortRange Parse(ReadOnlySpan<char> definition) {
 		int separatorIndex = definition.IndexOf('-');
 		if (separatorIndex == -1) {
 			var port = ParsePort(definition.Trim());
 			return new PortRange(port, port);
 		}
-
+		
 		var firstPort = ParsePort(definition[..separatorIndex].Trim());
 		var lastPort = ParsePort(definition[(separatorIndex + 1)..].Trim());
 		if (lastPort < firstPort) {
@@ -37,7 +37,7 @@ readonly partial record struct PortRange(
 			return new PortRange(firstPort, lastPort);
 		}
 	}
-
+	
 	private static ushort ParsePort(ReadOnlySpan<char> port) {
 		try {
 			return ushort.Parse(port);

Common/Phantom.Common.Data/RamAllocationUnits.cs

@@ -13,11 +13,11 @@ public readonly partial record struct RamAllocationUnits(
 ) : IComparable<RamAllocationUnits> {
 	[MemoryPackIgnore]
 	public uint InMegabytes => (uint) RawValue * MegabytesPerUnit;
-
+	
 	public int CompareTo(RamAllocationUnits other) {
 		return RawValue.CompareTo(other.RawValue);
 	}
-
+	
 	public static RamAllocationUnits operator +(RamAllocationUnits left, RamAllocationUnits right) {
 		ushort units = (ushort) Math.Min(left.RawValue + right.RawValue, MaximumUnits);
 		return new RamAllocationUnits(units);
@@ -27,30 +27,30 @@ public readonly partial record struct RamAllocationUnits(
 		ushort units = (ushort) Math.Max(left.RawValue - right.RawValue, 0);
 		return new RamAllocationUnits(units);
 	}
-
+	
 	public static bool operator <(RamAllocationUnits left, RamAllocationUnits right) {
 		return left.CompareTo(right) < 0;
 	}
-
+	
 	public static bool operator >(RamAllocationUnits left, RamAllocationUnits right) {
 		return left.CompareTo(right) > 0;
 	}
-
+	
 	public static bool operator <=(RamAllocationUnits left, RamAllocationUnits right) {
 		return left.CompareTo(right) <= 0;
 	}
-
+	
 	public static bool operator >=(RamAllocationUnits left, RamAllocationUnits right) {
 		return left.CompareTo(right) >= 0;
 	}
-
+	
 	private const int MegabytesPerUnit = 256;
 	
 	public const ushort MaximumUnits = ushort.MaxValue;
 	private const int MaximumMegabytes = MaximumUnits * MegabytesPerUnit;
 	
 	public static readonly RamAllocationUnits Zero = new (0);
-
+	
 	/// <summary>
 	/// Converts an amount of <paramref name="megabytes"/> to <see cref="RamAllocationUnits"/>.
 	/// </summary>
@@ -59,7 +59,7 @@ public readonly partial record struct RamAllocationUnits(
 		if (megabytes % MegabytesPerUnit != 0) {
 			throw new ArgumentOutOfRangeException(nameof(megabytes), "Must be a multiple of " + MegabytesPerUnit + " MB.");
 		}
-
+		
 		long units = (long) megabytes / MegabytesPerUnit;
 		if (units < 0) {
 			throw new ArgumentOutOfRangeException(nameof(megabytes), "Must be at least 0 MB.");
@@ -70,7 +70,7 @@ public readonly partial record struct RamAllocationUnits(
 		
 		return new RamAllocationUnits((ushort) Math.Clamp(units, 0, MaximumUnits));
 	}
-
+	
 	/// <summary>
 	/// Converts a string in the format &lt;number&gt;{M|G} (case-insensitive) to <see cref="RamAllocationUnits"/>.
 	/// </summary>
@@ -79,20 +79,20 @@ public readonly partial record struct RamAllocationUnits(
 		if (definition.IsEmpty) {
 			throw new ArgumentOutOfRangeException(nameof(definition), "Must not be empty.");
 		}
-
+		
 		int unitMultiplier = char.ToUpperInvariant(definition[^1]) switch {
 			'M' => 1,
 			'G' => 1024,
-			_ => throw new ArgumentOutOfRangeException(nameof(definition), "Must end with 'M' or 'G'.")
+			_   => throw new ArgumentOutOfRangeException(nameof(definition), "Must end with 'M' or 'G'.")
 		};
-
+		
 		if (!int.TryParse(definition[..^1], out int size)) {
 			throw new ArgumentOutOfRangeException(nameof(definition), "Must begin with a number.");
 		}
 		
 		return FromMegabytes(size * unitMultiplier);
 	}
-
+	
 	/// <summary>
 	/// Converts a string in the format &lt;number&gt;{M|G} (case-insensitive) to <see cref="RamAllocationUnits"/>.
 	/// </summary>

Common/Phantom.Common.Data/Replies/RegisterAgentFailure.cs

@@ -1,6 +0,0 @@
-namespace Phantom.Common.Data.Replies;
-
-public enum RegisterAgentFailure : byte {
-	ConnectionAlreadyHasAnAgent,
-	InvalidToken
-}

Common/Phantom.Common.Data/Result.cs

@@ -1,5 +1,6 @@
 using System.Diagnostics.CodeAnalysis;
 using MemoryPack;
+using Phantom.Utils.Monads;
 using Phantom.Utils.Result;
 
 namespace Phantom.Common.Data;
@@ -17,35 +18,38 @@ public sealed partial class Result<TValue, TError> {
 	[MemoryPackOrder(2)]
 	[MemoryPackInclude]
 	private readonly TError? error;
-
+	
 	[MemoryPackIgnore]
 	public TValue Value => hasValue ? value! : throw new InvalidOperationException("Attempted to get value from an error result.");
 	
 	[MemoryPackIgnore]
 	public TError Error => !hasValue ? error! : throw new InvalidOperationException("Attempted to get error from a success result.");
 	
+	[MemoryPackIgnore]
+	public Either<TValue, TError> AsEither => hasValue ? Either.Left(value!) : Either.Right(error!);
+	
 	private Result(bool hasValue, TValue? value, TError? error) {
 		this.hasValue = hasValue;
 		this.value = value;
 		this.error = error;
 	}
-
+	
 	public bool Is(TValue expectedValue) {
 		return hasValue && EqualityComparer<TValue>.Default.Equals(value, expectedValue);
 	}
-
+	
 	public TOutput Into<TOutput>(Func<TValue, TOutput> valueConverter, Func<TError, TOutput> errorConverter) {
 		return hasValue ? valueConverter(value!) : errorConverter(error!);
 	}
-
+	
 	public Result<TValue, TNewError> MapError<TNewError>(Func<TError, TNewError> errorConverter) {
 		return hasValue ? value! : errorConverter(error!);
 	}
-
+	
 	public Utils.Result.Result Variant() {
 		return hasValue ? new Ok<TValue>(Value) : new Err<TError>(Error);
 	}
-
+	
 	public static implicit operator Result<TValue, TError>(TValue value) {
 		return new Result<TValue, TError>(hasValue: true, value, default);
 	}
@@ -53,7 +57,7 @@ public sealed partial class Result<TValue, TError> {
 	public static implicit operator Result<TValue, TError>(TError error) {
 		return new Result<TValue, TError>(hasValue: false, default, error);
 	}
-
+	
 	public static implicit operator bool(Result<TValue, TError> result) {
 		return result.hasValue;
 	}
@@ -68,15 +72,15 @@ public sealed partial class Result<TError> {
 	[MemoryPackOrder(1)]
 	[MemoryPackInclude]
 	private readonly TError? error;
-
+	
 	[MemoryPackIgnore]
 	public TError Error => !hasValue ? error! : throw new InvalidOperationException("Attempted to get error from a success result.");
-
+	
 	private Result(bool hasValue, TError? error) {
 		this.hasValue = hasValue;
 		this.error = error;
 	}
-
+	
 	public bool TryGetError([MaybeNullWhen(false)] out TError error) {
 		if (hasValue) {
 			error = default;
@@ -87,15 +91,15 @@ public sealed partial class Result<TError> {
 			return true;
 		}
 	}
-
+	
 	public static implicit operator Result<TError>([SuppressMessage("ReSharper", "UnusedParameter.Global")] Result.OkType _) {
 		return new Result<TError>(hasValue: true, default);
 	}
-
+	
 	public static implicit operator Result<TError>(TError error) {
 		return new Result<TError>(hasValue: false, error);
 	}
-
+	
 	public static implicit operator bool(Result<TError> result) {
 		return result.hasValue;
 	}
@@ -103,6 +107,6 @@ public sealed partial class Result<TError> {
 
 public static class Result {
 	public static OkType Ok { get; }  = new ();
-
+	
 	public readonly record struct OkType;
 }

Common/Phantom.Common.Messages.Agent/AgentMessageRegistries.cs

@@ -1,6 +1,6 @@
-using Phantom.Common.Data;
+using System.Collections.Immutable;
+using Phantom.Common.Data;
 using Phantom.Common.Data.Replies;
-using Phantom.Common.Messages.Agent.BiDirectional;
 using Phantom.Common.Messages.Agent.ToAgent;
 using Phantom.Common.Messages.Agent.ToController;
 using Phantom.Utils.Logging;
@@ -12,18 +12,15 @@ public static class AgentMessageRegistries {
 	public static MessageRegistry<IMessageToAgent> ToAgent { get; } = new (PhantomLogger.Create("MessageRegistry", nameof(ToAgent)));
 	public static MessageRegistry<IMessageToController> ToController { get; } = new (PhantomLogger.Create("MessageRegistry", nameof(ToController)));
 	
-	public static IMessageDefinitions<IMessageToAgent, IMessageToController, ReplyMessage> Definitions { get; } = new MessageDefinitions();
-
+	public static IMessageDefinitions<IMessageToController, IMessageToAgent> Definitions { get; } = new MessageDefinitions();
+	
 	static AgentMessageRegistries() {
-		ToAgent.Add<RegisterAgentSuccessMessage>(0);
-		ToAgent.Add<RegisterAgentFailureMessage>(1);
 		ToAgent.Add<ConfigureInstanceMessage, Result<ConfigureInstanceResult, InstanceActionFailure>>(2);
 		ToAgent.Add<LaunchInstanceMessage, Result<LaunchInstanceResult, InstanceActionFailure>>(3);
 		ToAgent.Add<StopInstanceMessage, Result<StopInstanceResult, InstanceActionFailure>>(4);
 		ToAgent.Add<SendCommandToInstanceMessage, Result<SendCommandToInstanceResult, InstanceActionFailure>>(5);
-		ToAgent.Add<ReplyMessage>(127);
 		
-		ToController.Add<RegisterAgentMessage>(0);
+		ToController.Add<RegisterAgentMessage, ImmutableArray<ConfigureInstanceMessage>>(0);
 		ToController.Add<UnregisterAgentMessage>(1);
 		ToController.Add<AgentIsAliveMessage>(2);
 		ToController.Add<AdvertiseJavaRuntimesMessage>(3);
@@ -32,15 +29,10 @@ public static class AgentMessageRegistries {
 		ToController.Add<ReportAgentStatusMessage>(6);
 		ToController.Add<ReportInstanceEventMessage>(7);
 		ToController.Add<ReportInstancePlayerCountsMessage>(8);
-		ToController.Add<ReplyMessage>(127);
 	}
-
-	private sealed class MessageDefinitions : IMessageDefinitions<IMessageToAgent, IMessageToController, ReplyMessage> {
+	
+	private sealed class MessageDefinitions : IMessageDefinitions<IMessageToController, IMessageToAgent> {
 		public MessageRegistry<IMessageToAgent> ToClient => ToAgent;
 		public MessageRegistry<IMessageToController> ToServer => ToController;
-
-		public ReplyMessage CreateReplyMessage(uint sequenceId, byte[] serializedReply) {
-			return new ReplyMessage(sequenceId, serializedReply);
-		}
 	}
 }

Common/Phantom.Common.Messages.Agent/BiDirectional/ReplyMessage.cs

@@ -1,10 +0,0 @@
-using MemoryPack;
-using Phantom.Utils.Rpc.Message;
-
-namespace Phantom.Common.Messages.Agent.BiDirectional;
-
-[MemoryPackable(GenerateType.VersionTolerant)]
-public sealed partial record ReplyMessage(
-	[property: MemoryPackOrder(0)] uint SequenceId,
-	[property: MemoryPackOrder(1)] byte[] SerializedReply
-) : IMessageToController, IMessageToAgent, IReply;

Common/Phantom.Common.Messages.Agent/Handshake/IAgentHandshakeResult.cs

@@ -0,0 +1,10 @@
+using MemoryPack;
+
+namespace Phantom.Common.Messages.Agent.Handshake;
+
+[MemoryPackable]
+[MemoryPackUnion(tag: 0, typeof(InvalidAuthToken))]
+public partial interface IAgentHandshakeResult;
+
+[MemoryPackable(GenerateType.VersionTolerant)]
+public sealed partial record InvalidAuthToken : IAgentHandshakeResult;

Common/Phantom.Common.Messages.Agent/ToAgent/RegisterAgentFailureMessage.cs

@@ -1,9 +0,0 @@
-using MemoryPack;
-using Phantom.Common.Data.Replies;
-
-namespace Phantom.Common.Messages.Agent.ToAgent;
-
-[MemoryPackable(GenerateType.VersionTolerant)]
-public sealed partial record RegisterAgentFailureMessage(
-	[property: MemoryPackOrder(0)] RegisterAgentFailure FailureKind
-) : IMessageToAgent;

Common/Phantom.Common.Messages.Agent/ToAgent/RegisterAgentSuccessMessage.cs

@@ -1,9 +0,0 @@
-using System.Collections.Immutable;
-using MemoryPack;
-
-namespace Phantom.Common.Messages.Agent.ToAgent;
-
-[MemoryPackable(GenerateType.VersionTolerant)]
-public sealed partial record RegisterAgentSuccessMessage(
-	[property: MemoryPackOrder(0)] ImmutableArray<ConfigureInstanceMessage> InitialInstanceConfigurations
-) : IMessageToAgent;

Common/Phantom.Common.Messages.Agent/ToController/RegisterAgentMessage.cs

@@ -1,11 +1,12 @@
-using MemoryPack;
-using Phantom.Common.Data;
+using System.Collections.Immutable;
+using MemoryPack;
 using Phantom.Common.Data.Agent;
+using Phantom.Common.Messages.Agent.ToAgent;
+using Phantom.Utils.Actor;
 
 namespace Phantom.Common.Messages.Agent.ToController;
 
 [MemoryPackable(GenerateType.VersionTolerant)]
 public sealed partial record RegisterAgentMessage(
-	[property: MemoryPackOrder(0)] AuthToken AuthToken,
-	[property: MemoryPackOrder(1)] AgentInfo AgentInfo
-) : IMessageToController;
+	[property: MemoryPackOrder(0)] AgentInfo AgentInfo
+) : IMessageToController, ICanReply<ImmutableArray<ConfigureInstanceMessage>>;

Common/Phantom.Common.Messages.Web/BiDirectional/ReplyMessage.cs

@@ -1,10 +0,0 @@
-using MemoryPack;
-using Phantom.Utils.Rpc.Message;
-
-namespace Phantom.Common.Messages.Web.BiDirectional;
-
-[MemoryPackable(GenerateType.VersionTolerant)]
-public sealed partial record ReplyMessage(
-	[property: MemoryPackOrder(0)] uint SequenceId,
-	[property: MemoryPackOrder(1)] byte[] SerializedReply
-) : IMessageToController, IMessageToWeb, IReply;

Common/Phantom.Common.Messages.Web/ToController/LaunchInstanceMessage.cs

@@ -5,7 +5,7 @@ using Phantom.Common.Data.Replies;
 using Phantom.Common.Data.Web.Users;
 using Phantom.Utils.Actor;
 
-namespace Phantom.Common.Messages.Web.ToController; 
+namespace Phantom.Common.Messages.Web.ToController;
 
 [MemoryPackable(GenerateType.VersionTolerant)]
 public sealed partial record LaunchInstanceMessage(

Common/Phantom.Common.Messages.Web/ToController/RegisterWebMessage.cs

@@ -1,9 +0,0 @@
-using MemoryPack;
-using Phantom.Common.Data;
-
-namespace Phantom.Common.Messages.Web.ToController;
-
-[MemoryPackable(GenerateType.VersionTolerant)]
-public sealed partial record RegisterWebMessage(
-	[property: MemoryPackOrder(0)] AuthToken AuthToken
-) : IMessageToController;

Common/Phantom.Common.Messages.Web/ToController/SendCommandToInstanceMessage.cs

@@ -5,7 +5,7 @@ using Phantom.Common.Data.Replies;
 using Phantom.Common.Data.Web.Users;
 using Phantom.Utils.Actor;
 
-namespace Phantom.Common.Messages.Web.ToController; 
+namespace Phantom.Common.Messages.Web.ToController;
 
 [MemoryPackable(GenerateType.VersionTolerant)]
 public sealed partial record SendCommandToInstanceMessage(