com.dibsyhex.apkdissector.ZipReader.java Source code

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Here is the source code for com.dibsyhex.apkdissector.ZipReader.java

Source

/*
 * ZipReader: Decompiles APK Files 
Copyright (C) 2015  Dibyendu Sikdar @dibsyhex
    
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero 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 Affero General Public License for more details.
    
You should have received a copy of the GNU Affero General Public License
along with this program.  If not, see <http://www.gnu.org/licenses/>.
 * 
 * 
 */

package com.dibsyhex.apkdissector;

import java.io.BufferedInputStream;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.FileReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.util.Enumeration;
import java.util.zip.*;

import org.apache.commons.io.FileUtils;

public class ZipReader {

    public Response response = null;

    public static void main(String[] args) {
        // TODO Auto-generated method stub
        ZipReader zipReader = new ZipReader();
        zipReader.getZipContents("apks/PDFReader.apk");
        //zipReader.getZipEntries("apks/PDFReader.apk");
        zipReader.getZipContents("apks/templerun.apk");
        //zipReader.getZipEntries("D:\\Projects\\Java\\ApkDissector\\apks\\PDFReader.apk");

    }

    public void getZipEntries(String name) {
        try {
            File file = new File(name);
            ZipFile zipFile = new ZipFile(file);
            Enumeration<? extends ZipEntry> enumeration = zipFile.entries();

            System.out.println("Listing Entries in the apkfile");

            response.displayLog("Listing Entries in the apkfile");

            while (enumeration.hasMoreElements()) {
                Object key = enumeration.nextElement();
                //String s=key.toString()+":"+zipFile.getEntry(key.toString());
                String s = zipFile.getEntry(key.toString()).toString();
                System.out.println("  " + s);

                response.displayLog(s);
            }

            zipFile.close();
        } catch (Exception e) {
            System.out.println(e.toString());
            response.displayError(e.toString());
        }
    }

    public void getZipContents(String name) {
        try {
            File file = new File(name);
            FileInputStream fileInputStream = new FileInputStream(file);
            ZipInputStream zipInputStream = new ZipInputStream(fileInputStream);
            //System.out.println(zipInputStream.available());
            //System.out.println("Reading each entries in details:");
            ZipFile zipFile = new ZipFile(file);
            ZipEntry zipEntry;

            response.displayLog("Begining to extract");

            while ((zipEntry = zipInputStream.getNextEntry()) != null) {
                String filename = "extracts" + File.separator + file.getName() + File.separator
                        + zipEntry.getName();
                System.out.println(filename);
                response.displayLog(filename);
                File extractDirectory = new File(filename);

                //Create the directories
                new File(extractDirectory.getParent()).mkdirs();

                //Now write the contents

                InputStream inputStream = zipFile.getInputStream(zipEntry);
                OutputStream outputStream = new FileOutputStream(extractDirectory);

                FileUtils.copyInputStreamToFile(inputStream, extractDirectory);

                //Decode the xml files

                if (filename.endsWith(".xml")) {
                    //First create a temp file at a location temp/extract/...
                    File temp = new File("temp" + File.separator + extractDirectory);
                    new File(temp.getParent()).mkdirs();

                    //Create an object of XML Decoder
                    XmlDecoder xmlDecoder = new XmlDecoder();
                    InputStream inputStreamTemp = new FileInputStream(extractDirectory);
                    byte[] buf = new byte[80000];//increase
                    int bytesRead = inputStreamTemp.read(buf);
                    String xml = xmlDecoder.decompressXML(buf);
                    //System.out.println(xml);
                    FileUtils.writeStringToFile(temp, xml);

                    //Now rewrite the files at the original locations

                    FileUtils.copyFile(temp, extractDirectory);

                }

            }

            response.displayLog("Extraction Done !");
            System.out.println(" DONE ! ");
            zipInputStream.close();

        } catch (Exception e) {
            System.out.println(e.toString());
            response.displayError(e.toString());
        }
    }

}