Shade WindowsSandbox into the main project

build.gradle.kts

@@ -71,6 +71,7 @@ sourceSets.main {
 
 tasks.withType(Jar::class) {
     from(shade.map { if(it.isDirectory) it else zipTree(it) })
+    duplicatesStrategy = DuplicatesStrategy.EXCLUDE
     manifest {
         attributes(
             "ForceLoadAsMod" to true,

src/main/java/gq/malwarefight/nosession/win/WindowsSandbox.java

@@ -0,0 +1,48 @@
+package gq.malwarefight.nosession.win;
+
+import java.io.File;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.nio.file.Files;
+
+public class WindowsSandbox {
+    /**
+     * Run a process sandboxed
+     * @return success or failure
+     */
+    public static native boolean runProcess(String[] rwMounts, String[] roMounts, String[] args);
+
+    /**
+     * Determines if we are running in a sandbox
+     * @return whether we are running in a sandbox
+     */
+    public static native boolean isSandboxed();
+
+    /**
+     * This method was pulled from the Utils class so people can use this module as a standalone library
+     */
+    private static void copy(InputStream i, OutputStream o) throws IOException {
+        byte[] buffer = new byte[16384];
+        int read;
+        while ((read = i.read(buffer)) > 0) {
+            o.write(buffer, 0, read);
+        }
+        i.close();
+        o.close();
+    }
+
+    static {
+        try {
+            File tempFile = Files.createTempFile("minecraft_sandbox", ".dll").toFile();
+            try (InputStream is = WindowsSandbox.class.getResourceAsStream("/native/" + System.getProperty("os.arch") + "/windows/" + System.mapLibraryName("windows_sandbox"))) {
+                assert is != null: "Native library not compiled";
+                copy(is, Files.newOutputStream(tempFile.toPath()));
+            }
+            System.load(tempFile.getAbsolutePath());
+            tempFile.deleteOnExit();
+        } catch (Exception e) {
+            throw new RuntimeException("Cannot instantiate WindowsSandbox");
+        }
+    }
+}