Initial POC

Author: JustArchi

ArchiSteamFarm/ArchiSteamFarm.csproj

@@ -24,6 +24,7 @@
 		<PackageReference Include="SteamKit2" />
 		<PackageReference Include="System.Composition" />
 		<PackageReference Include="System.Security.Cryptography.ProtectedData" />
+		<PackageReference Include="Tmds.DBus.Protocol" />
 	</ItemGroup>
 
 	<ItemGroup>

ArchiSteamFarm/Core/OS.cs

@@ -37,6 +37,8 @@
 using ArchiSteamFarm.Localization;
 using ArchiSteamFarm.Storage;
 using ArchiSteamFarm.Web;
+using Login.DBus;
+using Tmds.DBus.Protocol;
 
 namespace ArchiSteamFarm.Core;
 
@@ -69,13 +71,18 @@ internal static string Version {
 		}
 	}
 
+	private static SafeHandle? InhibitLock;
 	private static Mutex? SingleInstance;
 
-	internal static void CoreInit(bool minimized, bool systemRequired) {
+	internal static async Task CoreInit(bool minimized, bool systemRequired) {
 		if (minimized) {
 			MinimizeConsoleWindow();
 		}
 
+		if (OperatingSystem.IsLinux()) {
+			await LinuxKeepSystemActive().ConfigureAwait(false);
+		}
+
 		if (OperatingSystem.IsWindows()) {
 			if (systemRequired) {
 				WindowsKeepSystemActive();
@@ -181,6 +188,12 @@ internal static void UnregisterProcess() {
 		// Instead, we'll dispose the mutex which should automatically release it by the CLR
 		SingleInstance.Dispose();
 		SingleInstance = null;
+
+		// Release the inhibit lock as well, if needed
+		if (InhibitLock != null) {
+			InhibitLock.Dispose();
+			InhibitLock = null;
+		}
 	}
 
 	internal static bool VerifyEnvironment() {
@@ -316,6 +329,31 @@ private static void WindowsDisableQuickEditMode() {
 		}
 	}
 
+	[SupportedOSPlatform("Linux")]
+	private static async Task LinuxKeepSystemActive() {
+		if (!OperatingSystem.IsLinux()) {
+			throw new PlatformNotSupportedException();
+		}
+
+		string? systemAddress = Address.System;
+
+		if (string.IsNullOrEmpty(systemAddress)) {
+			ASF.ArchiLogger.LogGenericError(Strings.FormatWarningFailedWithError(nameof(systemAddress)));
+
+			return;
+		}
+
+		using Connection connection = new(systemAddress);
+
+		await connection.ConnectAsync().ConfigureAwait(false);
+
+		LoginService loginService = new(connection, "org.freedesktop.login1");
+
+		Manager manager = loginService.CreateManager("/org/freedesktop/login1");
+
+		InhibitLock = await manager.InhibitAsync("idle", SharedInfo.PublicIdentifier, "--system-required", "block");
+	}
+
 	[SupportedOSPlatform("Windows")]
 	private static void WindowsKeepSystemActive() {
 		if (!OperatingSystem.IsWindows()) {