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import java.io.File;
import java.lang.reflect.Field;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.util.Arrays;
import com.google.common.base.Strings;
import net.minecraftforge.gradle.GradleStartCommon;
public class GradleStartClient extends GradleStart {
public static void main(String[] args) {
// hack natives.
try {
GradleStartCommon.LOGGER.info("Injecting Natives!");
hack();
GradleStartCommon.LOGGER.info("Natives Injected!");
// launch
Method launch = GradleStartCommon.class.getDeclaredMethod("launch", String[].class);
if (launch != null) {
launch.setAccessible(true);
GradleStart aStart = new GradleStart();
GradleStartCommon.LOGGER.info("Launching!");
launch.invoke(aStart, new Object[]{args});
}
}
catch (NoSuchMethodException | SecurityException | IllegalAccessException | IllegalArgumentException | InvocationTargetException e) {
e.printStackTrace();
}
}
private static final void hack() {
GradleStartCommon.LOGGER.info("[FG_1.3] Doing Classloader hack.");
String paths = System.getProperty("java.library.path");
String nativesDir = "@@NATIVESDIR@@";
if (Strings.isNullOrEmpty(paths))
paths = nativesDir;
else
paths += File.pathSeparator + nativesDir;
hackNativesFixed(paths);
//addLibraryPath(nativesDir);
//addLibraryPath(paths);
}
private static final void hackNativesFixed(String paths) {
System.setProperty("java.library.path", paths);
// hack the classloader now.
try
{
String aPathData = System.getProperty("java.library.path");
final Method initializePathMethod = ClassLoader.class.getDeclaredMethod("initializePath", String.class);
GradleStartCommon.LOGGER.info("[FG_1.3] Setting private method 'initializePath' to be accessible.");
initializePathMethod.setAccessible(true);
GradleStartCommon.LOGGER.info("[FG_1.3] Invoking 'initializePath' with arg 'java.library.path'.");
GradleStartCommon.LOGGER.info("[FG_1.3] Path Value: "+aPathData);
final Object usrPathsValue = initializePathMethod.invoke(null, "java.library.path");
final Field usrPathsField = ClassLoader.class.getDeclaredField("usr_paths");
GradleStartCommon.LOGGER.info("[FG_1.3] Setting private field 'usr_paths' to be accessible.");
usrPathsField.setAccessible(true);
GradleStartCommon.LOGGER.info("[FG_1.3] Injecting path data.");
usrPathsField.set(null, usrPathsValue);
GradleStartCommon.LOGGER.info("[FG_1.3] Finished Classloader hack.");
}
catch(Throwable t) {
GradleStartCommon.LOGGER.info("[FG_1.3] Error handling Classloader hack, printing stack trace.");
t.printStackTrace();
};
}
public static void addLibraryPath(String pathToAdd){
Field usrPathsField;
try {
usrPathsField = ClassLoader.class.getDeclaredField("usr_paths");
usrPathsField.setAccessible(true);
//get array of paths
final String[] paths = (String[])usrPathsField.get(null);
//check if the path to add is already present
for(String path : paths) {
if(path.equals(pathToAdd)) {
GradleStartCommon.LOGGER.info("[FG_1.3] Found existing PATH data, skipping.");
return;
}
}
GradleStartCommon.LOGGER.info("[FG_1.3] Injecting path data. ["+pathToAdd+"]");
//add the new path
final String[] newPaths = Arrays.copyOf(paths, paths.length + 1);
newPaths[newPaths.length-1] = pathToAdd;
usrPathsField.set(null, newPaths);
}
catch (NoSuchFieldException | SecurityException | IllegalArgumentException | IllegalAccessException e) {
GradleStartCommon.LOGGER.info("[FG_1.3] Error handling Classloader hack, printing stack trace.");
e.printStackTrace();
}
}
}
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