Feature: Autostart for DE following the freedesktop standard

README.md

@@ -5,4 +5,4 @@ Linux-specific implemenations of the [integrations-api](https://github.com/crypt
 
 This project uses the following JVM properties:
 * `cryptomator.integrationsLinux.trayIconsDir` - specifies the directory from which svg images for the tray icon are loaded
-
+* `cryptomator.integrationsLinux.autoStartCmd` - specifies the command used for starting Cryptomator 

src/main/java/module-info.java

@@ -1,6 +1,8 @@
+import org.cryptomator.integrations.autostart.AutoStartProvider;
 import org.cryptomator.integrations.keychain.KeychainAccessProvider;
 import org.cryptomator.integrations.revealpath.RevealPathService;
 import org.cryptomator.integrations.tray.TrayMenuController;
+import org.cryptomator.linux.autostart.FreedesktopAutoStartService;
 import org.cryptomator.linux.keychain.KDEWalletKeychainAccess;
 import org.cryptomator.linux.keychain.SecretServiceKeychainAccess;
 import org.cryptomator.linux.revealpath.DBusSendRevealPathService;
@@ -14,6 +16,7 @@
 	requires org.purejava.kwallet;
 	requires de.swiesend.secretservice;
 
+	provides AutoStartProvider with FreedesktopAutoStartService;
 	provides KeychainAccessProvider with SecretServiceKeychainAccess, KDEWalletKeychainAccess;
 	provides RevealPathService with DBusSendRevealPathService;
 	provides TrayMenuController with AppindicatorTrayMenuController;

src/main/java/org/cryptomator/linux/autostart/FreedesktopAutoStartService.java

@@ -0,0 +1,85 @@
+package org.cryptomator.linux.autostart;
+
+import org.cryptomator.integrations.autostart.AutoStartProvider;
+import org.cryptomator.integrations.autostart.ToggleAutoStartFailedException;
+import org.cryptomator.integrations.common.CheckAvailability;
+import org.cryptomator.integrations.common.OperatingSystem;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.StandardOpenOption;
+import java.util.Objects;
+
+/**
+ * Enables autostart for Linux desktop environments following the freedesktop standard.
+ * <p>
+ * This service is based on <a href=https://specifications.freedesktop.org/autostart-spec/autostart-spec-0.5.html>version 0.5 of the freedesktop autostart-spec</a>.
+ */
+@CheckAvailability
+@OperatingSystem(OperatingSystem.Value.LINUX)
+public class FreedesktopAutoStartService implements AutoStartProvider {
+
+	private static final Logger LOG = LoggerFactory.getLogger(FreedesktopAutoStartService.class);
+	private static final String CMD_PROPERTY = "cryptomator.integrationsLinux.autoStartCmd";
+	private static final String AUTOSTART_FILENAME = "Cryptomator.desktop";
+	private static final String CONTENT_TEMPLATE = """
+			[Desktop Entry]
+			Type=Application
+			Exec=%s
+			Hidden=false
+			NoDisplay=false
+			X-GNOME-Autostart-enabled=true
+			Name=Cryptomator
+			Comment=Created with %s
+			""";
+
+	private final Path autostartFile;
+	private final String content;
+	private final boolean hasExecValue;
+
+	public FreedesktopAutoStartService() {
+		var xdgConfigDirString = Objects.requireNonNullElse(System.getenv("XDG_CONFIG_HOME"), System.getProperty("user.home") + "/.config");
+		this.autostartFile = Path.of(xdgConfigDirString, "autostart", AUTOSTART_FILENAME);
+
+		var execValue = System.getProperty(CMD_PROPERTY);
+		if (execValue == null) {
+			LOG.debug("JVM property {} not set, using command path", CMD_PROPERTY);
+			execValue = ProcessHandle.current().info().command().orElse("");
+		}
+		this.hasExecValue = execValue.isBlank();
+		this.content = CONTENT_TEMPLATE.formatted(execValue, this.getClass().getName());
+	}
+
+	@Override
+	public synchronized void enable() throws ToggleAutoStartFailedException {
+		try {
+			Files.writeString(autostartFile, content, StandardOpenOption.CREATE, StandardOpenOption.WRITE, StandardOpenOption.TRUNCATE_EXISTING);
+		} catch (IOException e) {
+			throw new ToggleAutoStartFailedException("Failed to activate Cryptomator autostart for GNOME desktop environment.", e);
+		}
+	}
+
+	@Override
+	public synchronized void disable() throws ToggleAutoStartFailedException {
+		try {
+			Files.deleteIfExists(autostartFile);
+		} catch (IOException e) {
+			throw new ToggleAutoStartFailedException("Failed to deactivate Cryptomator autostart for GNOME desktop environment.", e);
+		}
+	}
+
+	@Override
+	public synchronized boolean isEnabled() {
+		return Files.exists(autostartFile);
+	}
+
+	@CheckAvailability
+	public boolean isSupported() {
+		//TODO: might need to research which Desktop Environments support this
+		return hasExecValue && Files.exists(autostartFile.getParent());
+	}
+
+}

src/main/resources/META-INF/services/org.cryptomator.integrations.autostart.AutoStartProvider

@@ -0,0 +1 @@
+org.cryptomator.linux.autostart.FreedesktopAutoStartService

src/test/java/org/cryptomator/linux/autostart/FreedesktopAutoStartIT.java

@@ -0,0 +1,28 @@
+package org.cryptomator.linux.autostart;
+
+import org.junit.jupiter.api.Assertions;
+import org.junit.jupiter.api.MethodOrderer;
+import org.junit.jupiter.api.Order;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.TestMethodOrder;
+
+@TestMethodOrder(MethodOrderer.OrderAnnotation.class)
+public class FreedesktopAutoStartIT {
+
+	FreedesktopAutoStartService inTest = new FreedesktopAutoStartService();
+
+	@Test
+	@Order(1)
+	public void testAutostartEnable() {
+		Assertions.assertDoesNotThrow(() -> inTest.enable());
+		Assertions.assertTrue(inTest.isEnabled());
+	}
+
+
+	@Test
+	@Order(2)
+	public void testAutostartDisable() {
+		Assertions.assertDoesNotThrow(() -> inTest.disable());
+		Assertions.assertFalse(inTest.isEnabled());
+	}
+}