Add static initializer for WindowsSandbox

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

@@ -1,5 +1,11 @@
 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
@@ -12,4 +18,31 @@ public class WindowsSandbox {
      * @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
+     */
+    public 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("minceraft_sandbox", ".dll").toFile();
+            try (InputStream is = WindowsSandbox.class.getResourceAsStream("/native/" + System.getProperty("os.arch") + "/windows/" + System.mapLibraryName("nosession_libc"))) {
+                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");
+        }
+    }
 }