ZStringArrayDecrypter.java

package the.bytecode.club.bytecodeviewer.plugin.preinstalled;

import org.objectweb.asm.tree.ClassNode;
import the.bytecode.club.bytecodeviewer.BytecodeViewer;
import the.bytecode.club.bytecodeviewer.api.ExceptionUI;
import the.bytecode.club.bytecodeviewer.api.Plugin;
import the.bytecode.club.bytecodeviewer.api.PluginConsole;

import javax.swing.*;
import java.lang.reflect.Field;
import java.lang.reflect.Modifier;
import java.util.ArrayList;

/***************************************************************************
 * Bytecode Viewer (BCV) - Java & Android Reverse Engineering Suite        *
 * Copyright (C) 2014 Kalen 'Konloch' Kinloch - http://bytecodeviewer.com  *
 *                                                                         *
 * This program is free software: you can redistribute it and/or modify    *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation, either version 3 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 *   This program is distributed in the hope that it will be useful,       *
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
 *   GNU General Public License for more details.                          *
 *                                                                         *
 *   You should have received a copy of the GNU General Public License     *
 *   along with this program.  If not, see <http://www.gnu.org/licenses/>. *
 ***************************************************************************/

/**
 * Runs the classes then simply grabs the static String[] z
 * 
 * @author Konloch
 * @author Righteous
 * 
 */

public class ZStringArrayDecrypter extends Plugin {

    PluginConsole gui = new PluginConsole("ZStringArray Decrypter");
    StringBuilder out = new StringBuilder();

    @Override
    public void execute(ArrayList<ClassNode> classNodeList) {
		JOptionPane pane = new JOptionPane(
			"WARNING: This will load the classes into the JVM and execute the initialize function" + BytecodeViewer.nl+
			"for each class. IF THE FILE YOU'RE LOADING IS MALICIOUS, DO NOT CONTINUE."
		);
		Object[] options = new String[] { "Continue", "Cancel" };
		pane.setOptions(options);
		JDialog dialog = pane.createDialog(BytecodeViewer.viewer,
				"Bytecode Viewer - WARNING");
		dialog.setVisible(true);
		Object obj = pane.getValue();
		int result = -1;
		for (int k = 0; k < options.length; k++)
			if (options[k].equals(obj))
				result = k;
		
		if (result == 0) {
			boolean needsWarning = false;
			try {
	            for (Class<?> debug : the.bytecode.club.bytecodeviewer.api.BytecodeViewer.loadAllClassesIntoClassLoader()) {
	            	try {
		            	Field[] fields = debug.getDeclaredFields();
		                for ( Field field : fields ) {
		                    if ( field.getName().equals("z") ) {
		    	                out.append(debug.getName() + ":" + BytecodeViewer.nl);
		                        field.setAccessible(true);
		                        if(field.get(null) != null && field.get(null) instanceof String[] && Modifier.isStatic(field.getModifiers()) && Modifier.isFinal(field.getModifiers())) {
			                        String[] fieldVal = (String[]) field.get(null);
			                        for ( int i = 0; i < fieldVal.length; i++ ) {
			                            out.append("  z[" + i + "] = " + fieldVal[i] + BytecodeViewer.nl);
			                        }
		                        }
		                    }
		                }
	            	} catch(NoClassDefFoundError | Exception e) {
	            		System.err.println("Failed loading class " + debug.getName());
	            		e.printStackTrace();
	            		needsWarning = true;
	            	}
	            }
			} catch (Exception e){
				new ExceptionUI(e);
			}
            if(needsWarning) {
            	BytecodeViewer.showMessage("Some classes failed to decrypt, if you'd like to decrypt all of them"+BytecodeViewer.nl+"makes sure you include ALL the libraries it requires.");
            }

	        gui.setText(out.toString());
	        gui.setVisible(true);
		}
    }

}