andriod 解包

Posted 2020-07-27 phyxis_xu

使用 baksmali.jar 进行解包

命令 java -jar baksmail.jar -o classout/ classes.dex

public ArrayList<CheckSDK> check(String apkPath, String baksmaliPath,
            String cachDire) {
        ArrayList<CheckSDK> result = null;
        long currenTime = System.currentTimeMillis();
        File cachDir = new File(cachDire, currenTime + "");
        if (!cachDir.exists())
            cachDir.mkdir();
　　　　//把文件拷贝到临时目录
        List<File> listDex = moveDex(apkPath, cachDir);
        if (listDex == null) {
            return null;
        }
        for (int i = 0; i < listDex.size(); i++) {
            File dexFile = listDex.get(i);
            File newCachDir = new File(cachDir, System.currentTimeMillis()+ "_classout");
            String cmdStr = String.format("java -jar %s -o %s %s",baksmaliPath, newCachDir.getAbsolutePath(), dexFile.getAbsolutePath());
            String[] instructs = new String[] { cmdStr };
            runTime(instructs);
            ArrayList<CheckSDK> checkResult = checkExits(newCachDir);
            if (checkResult != null) {
                if (result == null)
                    result = new ArrayList<CheckSDK>();
                for (int x = 0; x < checkResult.size(); x++) {
                    result.add(checkResult.get(x));
                }
            }
        }

        SDCatch(cachDir);
        return result;
    }

private List<File> moveDex(String apkPath, File cachDir) {
        List<File> listDexes = new ArrayList<File>();
        try {
            ZipFile zipFile = new ZipFile(apkPath);
            Enumeration<?> en = zipFile.entries();
            while (en.hasMoreElements()) {
                ZipEntry ze = (ZipEntry) en.nextElement();
                if (ze.getName().endsWith(".dex")) {
                    File dexFile = new File(cachDir, System.currentTimeMillis()+ "_class.dex");
                    if (!dexFile.exists())
                        dexFile.createNewFile();
                    BufferedOutputStream output = new BufferedOutputStream( new FileOutputStream(dexFile));
                    BufferedInputStream input = new BufferedInputStream(zipFile.getInputStream(ze));
                    byte[] buffer = new byte[1024 * 1024];
                    int readLen = -1;
                    while ((readLen = input.read(buffer)) != -1) {
                        output.write(buffer, 0, readLen);
                    }
                    output.flush();
                    output.close();
                    input.close();
                    listDexes.add(dexFile);
                }
            }

        } catch (Exception e) {
            e.printStackTrace();
        }
        return listDexes;
    }

 

用 smali.jar 打包

java -jar smali-1.4.1.jar classout/ -o classes.dex