kr.ac.kaist.wala.hybridroid.analysis.resource.AndroidDecompiler.java Source code

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Here is the source code for kr.ac.kaist.wala.hybridroid.analysis.resource.AndroidDecompiler.java

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/*******************************************************************************
* Copyright (c) 2016 IBM Corporation and KAIST.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* KAIST - initial API and implementation
*******************************************************************************/
package kr.ac.kaist.wala.hybridroid.analysis.resource;

import org.apache.commons.lang3.SystemUtils;

import java.io.BufferedReader;
import java.io.File;
import java.io.IOException;
import java.io.InputStreamReader;

public class AndroidDecompiler {
    public static String decompile(String apk) {
        if (!apk.endsWith(".apk"))
            throw new InternalError("only support apk file : " + apk);
        File apkFile = new File(apk);
        if (!apkFile.exists())
            throw new InternalError("the file does not exist : " + apk);

        try {
            String path = apkFile.getCanonicalPath();
            String toPath = path.substring(0, path.length() - 4);
            String[] cmds = { "-f", "d", path, "-o", toPath };
            //         String apktool = Shell.walaProperties.getProperty(WalaProperties.ANDROID_APK_TOOL);
            //         File f = new File(apktool);
            //         if(!f.exists() || !f.isFile()){
            //            throw new InternalError("Cannot find APK tool: " + apktool);
            //         }
            //         String[] cmd = {"java", "-jar", apktool, "-f", "d", path, "-o", toPath};
            //         ProcessBuilder pb = new ProcessBuilder();
            //         pb.command(cmd);
            ////         System.out.println(pb.command().toString());
            //         Process p = pb.start();
            //         BufferedReader br = new BufferedReader(new InputStreamReader(p.getInputStream()));
            //         BufferedReader bre = new BufferedReader(new InputStreamReader(p.getErrorStream()));
            //         
            //         String r = null;
            //         while((r = br.readLine()) != null){
            //            System.out.println(r);
            //         }
            //         
            //         while((r = bre.readLine()) != null){
            //            System.err.println(r);
            //         }
            //         
            //         int res = p.waitFor();
            //         if(res != 0){
            //            throw new InternalError("failed to decompile: " + path);
            //         }
            brut.apktool.Main.main(cmds);
            if (!SystemUtils.IS_OS_WINDOWS)
                permission(toPath);
            return toPath;
        } catch (Exception e) {
            e.printStackTrace();
        }
        return null;
    }

    private static void permission(String path) {
        String[] cmd = { "chmod", "755", path };
        ProcessBuilder pb = new ProcessBuilder();
        pb.command(cmd);

        Process p = null;
        try {
            p = pb.start();
            BufferedReader br = new BufferedReader(new InputStreamReader(p.getInputStream()));
            BufferedReader bre = new BufferedReader(new InputStreamReader(p.getErrorStream()));
            String r = null;

            while ((r = br.readLine()) != null) {
                System.out.println(r);
            }

            while ((r = bre.readLine()) != null) {
                System.err.println(r);
            }

            int res = p.waitFor();
            if (res != 0) {
                throw new InternalError("failed to decompile: " + path);
            }
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (InterruptedException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }
}