348 lines
13 KiB
Java
348 lines
13 KiB
Java
import java.awt.*;
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import java.io.BufferedWriter;
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import java.io.File;
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import java.io.FileWriter;
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import java.io.IOException;
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import java.util.ArrayList;
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import java.util.List;
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import java.util.Scanner;
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import java.util.regex.Matcher;
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import java.util.regex.Pattern;
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import javax.swing.Box;
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import javax.swing.JComboBox;
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import javax.swing.JOptionPane;
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import javax.swing.JPanel;
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import org.objectweb.asm.tree.ClassNode;
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import the.bytecode.club.bytecodeviewer.*;
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import the.bytecode.club.bytecodeviewer.util.*;
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import the.bytecode.club.bytecodeviewer.api.*;
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import the.bytecode.club.bytecodeviewer.decompilers.impl.FernFlowerDecompiler;
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import the.bytecode.club.bytecodeviewer.gui.resourceviewer.viewer.ResourceViewer;
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/**
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* @author jowasp
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*/
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public class XposedGenerator extends Plugin
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{
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//PRIVATE
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private static List<String> methodsNames = new ArrayList<String>();
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private static List<String> cleanMethodsNames = new ArrayList<String>();
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private static String foundpckg;
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public XposedGenerator() {}
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@Override
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public void execute(ArrayList<ClassNode> classNodeList)
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{
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//Get actual file class content
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ResourceViewer viewer = BytecodeViewer.getActiveResource();
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if(viewer == null)
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{
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BytecodeViewer.showMessage("Open A Class First");
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return;
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}
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String className = viewer.getName();
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String containerName = viewer.name;
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ClassNode classnode = BytecodeViewer.getCurrentlyOpenedClassNode();
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//Call XposedGenerator class
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ParseChosenFileContent(className,containerName,classnode);
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}
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public static void ParseChosenFileContent(String classname, String containerName, ClassNode classNode)
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{
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try
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{
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//Parse content - Extract methods after APK /JAR has been extracted
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byte[] cont = ASMUtil.nodeToBytes(classNode);
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//Use one of the decompilers
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//TODO:Allow users to select other decompilers?
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FernFlowerDecompiler decompilefern = new FernFlowerDecompiler();
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//Decompile using Fern
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String decomp = decompilefern.decompileClassNode(classNode, cont);
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String[] xposedTemplateTypes = {"Empty","Parameters","Helper"};
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@SuppressWarnings({ "unchecked", "rawtypes" })
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JComboBox xposedTemplateList = new JComboBox(xposedTemplateTypes);
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//Set results of parsed methods into an a list
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List<String> methodsExtracted = ProcessContentExtractedClass(decomp);
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String packgExtracted = ProcessContentExtractedPackage(decomp);
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System.out.println("PACKAGE NAME: " +packgExtracted);
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//Get a clean list
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List<String> cleanMethods = null;
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//clear list
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cleanMethods = ProcessCleanMethodsAll(methodsExtracted);
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if (!cleanMethods.isEmpty())
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{
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JComboBox<String> cb = new JComboBox<>(cleanMethods.toArray(new String[cleanMethods.size()]));
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//Add Panel elements
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//Start Panel
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JPanel myPanel = new JPanel();
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myPanel.add(Box.createHorizontalStrut(15));
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myPanel.add(xposedTemplateList);
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myPanel.add(cb);
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//output methods to pane box
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int result = JOptionPane.showConfirmDialog(null, myPanel,
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"Choose Template and Method for Xposed Module", JOptionPane.OK_CANCEL_OPTION);
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if (result == JOptionPane.OK_OPTION) {
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//Read Chosen Class
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System.out.println("SELECTED CLASS is" + cb.getSelectedItem());
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String selectedClass = cb.getSelectedItem().toString();
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String selectedXposedTemplate = xposedTemplateList.getSelectedItem().toString();
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//WriteXposed Class with extracted data
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try{
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WriteXposedModule(selectedClass, packgExtracted, classname, selectedXposedTemplate);
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}
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catch(IllegalArgumentException e)
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{
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e.printStackTrace();
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JOptionPane.showMessageDialog(null,"Error" + e.toString());
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}
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}
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}
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else
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{
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JOptionPane.showMessageDialog(null,"Class Not Suitable");
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}
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}
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catch (IllegalArgumentException e)
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{
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e.printStackTrace();
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JOptionPane.showMessageDialog(null,"Error" + e.toString());
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}
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}
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public static void WriteXposedModule(String functionToHook, String packageName, String classToHook, String template) {
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System.out.println("TEMPLATE: " + template);
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if (template != null && !template.equals("Empty"))
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{
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try {
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//TODO: Prompt save dialog
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File file = new File("./XposedClassTest.java");
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// if file doesn't exists, then create it
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if (!file.exists()) {
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file.createNewFile();
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}
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//Extract the package name only
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String packageNameOnly = packageName.substring(8,packageName.length() - 2 ).trim();
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String classToHookNameOnly = classToHook;
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if(classToHookNameOnly.endsWith(".class"))
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classToHookNameOnly = classToHook.substring(0, classToHookNameOnly.length() - 6);
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String[] classClean = classToHookNameOnly.split("\\/");
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String[] functionSplitValues = functionToHook.split("\\s+");
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//select
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String onlyClass = classClean[classClean.length-1];
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//String onlyFunctionParateses = functionSplitValues[functionSplitValues.length-2];
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String onlyFunction = CleanUpFunction(functionSplitValues);
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//String functionToHookOnly = "dummy function";
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System.out.println(onlyClass);
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System.out.println(packageNameOnly);
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//Write Xposed Class
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String XposedClassText =
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"package androidpentesting.com.xposedmodule;"+ "\r\n" +
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"import de.robv.android.xposed.IXposedHookLoadPackage;" + "\r\n" +
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"\r\n" +
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"import de.robv.android.xposed.XC_MethodHook;" +"\r\n" +
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"import de.robv.android.xposed.XposedBridge;" +"\r\n" +
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"import de.robv.android.xposed.callbacks.XC_LoadPackage.LoadPackageParam;"+"\r\n" +
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"import static de.robv.android.xposed.XposedHelpers.findAndHookMethod;"+"\r\n" +"\r\n" +
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"public class XposedClassTest implements IXposedHookLoadPackage {"+"\r\n" +"\r\n" +
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" public void handleLoadPackage(final LoadPackageParam lpparam) throws Throwable {" + "\r\n" +"\r\n" +
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" String classToHook = " + "\"" + packageNameOnly + "." + onlyClass + "\";" + "\r\n" +
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" String functionToHook = "+"\""+ onlyFunction+"\";"+"\r\n" +
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" if (lpparam.packageName.equals("+"\""+packageNameOnly+ "\""+")){"+ "\r\n" +
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" XposedBridge.log(" + "\" Loaded app: \" " + " + lpparam.packageName);"+ "\r\n" +"\r\n" +
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" findAndHookMethod("+"\""+onlyClass+"\"" + ", lpparam.classLoader, "+" \"" +onlyFunction + "\""+", int.class,"+ "\r\n" +
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" new XC_MethodHook() {"+ "\r\n" +
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" @Override"+ "\r\n" +
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" protected void beforeHookedMethod(MethodHookParam param) throws Throwable {"+ "\r\n" +
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" //TO BE FILLED BY ANALYST"+ "\r\n" +
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" }"+ "\r\n" +
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" });"+"\r\n" +
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" }"+ "\r\n" +
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" }"+ "\r\n" +
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"}"+ "\r\n"
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;
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FileWriter fw = new FileWriter(file.getAbsoluteFile());
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BufferedWriter bw = new BufferedWriter(fw);
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bw.write(XposedClassText);
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bw.write("\r\n");
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bw.close();
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System.out.println("Done");
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JOptionPane.showMessageDialog(null,"Xposed Module Generated");
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} catch (IOException e) {
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JOptionPane.showMessageDialog(null,"Error" + e.toString());
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e.printStackTrace();
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}
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}
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else
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{
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JOptionPane.showMessageDialog(null,"Empty Template Chosen, Did Not Generate");
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}
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}
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private static List <String> ProcessContentExtractedClass(String contentFile){
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Scanner scanner = null;
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try{
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scanner = new Scanner(contentFile);
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//@TODO : Improve patterns to match other excepts 'public'
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String regexclass = "public";
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//String regexPkg = "package";
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Pattern pattern = Pattern.compile(regexclass, Pattern.CASE_INSENSITIVE);
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//Pattern patternVoid = Pattern.compile(regexVoid , Pattern.CASE_INSENSITIVE);
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// Pattern patternPkg = Pattern.compile(regexPkg , Pattern.CASE_INSENSITIVE);
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//scanner.useDelimiter(";");
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while (scanner.hasNextLine()) {
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String line = scanner.nextLine();
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// process the line
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Matcher matcher = pattern.matcher(line);
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while (matcher.find()){
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if (matcher.group() != null)
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{
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System.out.println("find() found the pattern \"" + quote(line.trim()));
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System.out.println("Function: " + CleanUpFunction(line.trim().split("\\s+")));
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methodsNames.add(quote(line.trim()));
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}
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else
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{
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methodsNames.add("No methods found");
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}
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}
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}
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if (methodsNames.isEmpty())
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{
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methodsNames.add("No methods found");
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}
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else
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{
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return methodsNames;
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}
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return methodsNames;
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}
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finally {
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if (scanner!=null)
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scanner.close();
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}
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}
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private static List <String> ProcessCleanMethodsAll(List<String> rawMethods)
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{
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for (String m:rawMethods)
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{
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//Exclude class declaration
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//TODO:add a list containing all possible types
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if (m.contains("extends") || (m.contains("implements") || (!m.contains("("))))
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{
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continue;
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}
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else
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{
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cleanMethodsNames.add(m);
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}
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}
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return cleanMethodsNames;
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}
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private static String CleanUpFunction(String[] rawFunction)
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{
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String onlyFunc = "functiondummy";
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for (String m:rawFunction)
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{
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if(m.contains("("))
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{
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String[] split = m.split("\\(")[0].split(" ");
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return split[split.length-1];
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}
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else
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{
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continue;
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}
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}
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return onlyFunc;
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}
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private static String ProcessContentExtractedPackage(String contentFile){
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Scanner scanner = null;
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try {
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scanner = new Scanner(contentFile);
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String regexPkg = "package";
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Pattern patternPkg = Pattern.compile(regexPkg , Pattern.CASE_INSENSITIVE);
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String line = scanner.nextLine();
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// process the line
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Matcher matcher = patternPkg.matcher(line);
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while (matcher.find()){
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if (matcher.group() != null)
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{
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System.out.println("find() found the pattern \"" + quote(line.trim())) ;
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foundpckg = quote(line.trim());
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}
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else
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{
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foundpckg = "";
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}
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}
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try
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//
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{
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if (foundpckg == null || foundpckg.isEmpty())
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foundpckg = "No Package Found";
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}
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catch(NullPointerException e)
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{
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JOptionPane.showMessageDialog(null,"Error - no package was found in the selected class: " + e.toString());
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}
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finally
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{
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if(scanner != null)
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scanner.close();
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}
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}
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catch(IllegalArgumentException e)
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{
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JOptionPane.showMessageDialog(null,"Error" + e.toString());
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if(scanner != null)
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scanner.close();
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}
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finally
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{
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if(scanner != null)
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scanner.close();
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}
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return foundpckg;
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}
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private static String quote(String aText){
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String QUOTE = "'";
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return QUOTE + aText + QUOTE;
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}
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}
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