中国白客网vip钓鱼网站开发/惠州seo关键词排名

著名的apktool是android逆向界用的最普遍的一个工具，这个项目的原始地址在这里http://code.google.com/p/android-apktool/，但是你们都懂的在天朝谷歌是无法访问的，所以直接上github的?https://github.com/brutall/brut.apktool。

在brut.apktool路径是主要代码所在，当然还有brut.apktool.smali是反编译smali的目录，目测还有brut.j.common,brut.j.dir,brut.j.utils是用到java的一些类。

brut.apktool路径下的apktool-cli还不知道是干嘛的，总之下面的apktool-lib正是我们最需要了解的。

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android目录是利用XmlPullParser实现的专门用于android当中xml的解码工具包。

brut/androlib目录正是我们研究的主题。

com/mindprod/ledatastream目录是le数据支持库。

org/xmlpull/mxp1_serializer目录是XmlPullParser的Xml解析库。

androlib目录一览。

先看一下ApkDecoder这个类。

    public ApkDecoder(File apkFile, Androlib androlib) {mAndrolib = androlib;setApkFile(apkFile);}public void setApkFile(File apkFile) {mApkFile = new ExtFile(apkFile);mResTable = null;}

mResTable这个一直很迷惑，很多地方用到了它，但是目前还不住到具体是干嘛的，先不研究这个，继续往下看。

   public void setOutDir(File outDir) throws AndrolibException {mOutDir = outDir;}public void setApi(int api) {mApi = api;}

这两个方法一看名字就不言而喻，这里就不啰嗦了。多看了几行代码发现，这代码质量相当高，简直不要太优质，比起什么AxmlPrinter2的代码好看多了，呵呵！

下面就是反编译的核心方法了，客观请往下看。

 public void decode() throws AndrolibException, IOException,DirectoryException {File outDir = getOutDir();if (!mForceDelete && outDir.exists()) {//如果输出目录不是因为删除而不存在就抛出异常throw new OutDirExistsException();}if (!mApkFile.isFile() || !mApkFile.canRead()) {//如果apk文件不是文件类型或者不能读也抛出异常throw new InFileNotFoundException();}try {OS.rmdir(outDir);//暂不明} catch (BrutException ex) {throw new AndrolibException(ex);}outDir.mkdirs();LOGGER.info("Using Apktool " + Androlib.getVersion() + " on " + mApkFile.getName());if (hasResources()) {//判断依据mApkFile.getDir().contraincontainsFile("resources.arsc")setTargetSdkVersion();setAnalysisMode(mAnalysisMode, true);//如果后面的参数为true,将会影响mResTable的取值setCompressionMode();//mCompressResources赋值，res.arsc是个zip获取它的压缩模式是否是ZipEntry.DEFLATED默认switch (mDecodeResources) {//这里默认是FULLcase DECODE_RESOURCES_NONE://不解码直接解压到指定res目录mAndrolib.decodeResourcesRaw(mApkFile, outDir);break;case DECODE_RESOURCES_FULL://调用androilib.decodearesources方法，其实本质还是调AndrolibResources.decode()方法mAndrolib.decodeResourcesFull(mApkFile, outDir, getResTable());break;}} else {//没有资源文件// if there's no resources.asrc, decode the manifest without looking// up attribute referencesif (hasManifest()) {//如果没有res.asrc就不需要查找manifest中的引用属性了switch (mDecodeResources) {case DECODE_RESOURCES_NONE:mAndrolib.decodeManifestRaw(mApkFile, outDir);break;case DECODE_RESOURCES_FULL://调mAndRes.decodeManifest(resTable, apkFile, outDir)mAndrolib.decodeManifestFull(mApkFile, outDir,getResTable());break;}}}if (hasSources()) {//如果有源文件switch (mDecodeSources) {case DECODE_SOURCES_NONE://直接复制classes.dexmAndrolib.decodeSourcesRaw(mApkFile, outDir, "classes.dex");break;case DECODE_SOURCES_SMALI://反编译成smali，SmaliDecoder.decode()mAndrolib.decodeSourcesSmali(mApkFile, outDir, "classes.dex", mDebug, mDebugLinePrefix, mBakDeb, mApi);break;case DECODE_SOURCES_JAVA://反编译jarnew AndrolibJava().decode()mAndrolib.decodeSourcesJava(mApkFile, outDir, mDebug);break;}}if (hasMultipleSources()) {//如果有多个dex// foreach unknown dex file in root, lets disassemble itSet files = mApkFile.getDirectory().getFiles(true);for (String file : files) {//反编译多个dexif (file.endsWith(".dex")) {if (! file.equalsIgnoreCase("classes.dex")) {switch(mDecodeSources) {case DECODE_SOURCES_NONE:mAndrolib.decodeSourcesRaw(mApkFile, outDir, file);break;case DECODE_SOURCES_SMALI:mAndrolib.decodeSourcesSmali(mApkFile, outDir, file, mDebug, mDebugLinePrefix, mBakDeb, mApi);break;case DECODE_SOURCES_JAVA:mAndrolib.decodeSourcesJava(mApkFile, outDir, mDebug);break;}}}}}mAndrolib.decodeRawFiles(mApkFile, outDir);//复制libs和assetsmAndrolib.decodeUnknownFiles(mApkFile, outDir, mResTable);//发现一个问题，brutall的代码没有更新，新的在这里https://github.com/iBotPeaches/ApktoolmAndrolib.writeOriginalFiles(mApkFile, outDir);//输出原始文件，包括AndroidManifest.xml和签名证书writeMetaFile();//写如描述文件apktool.yml}

下面几个方法不解释咯

   public void setAnalysisMode(boolean mode, boolean pass) throws AndrolibException{mAnalysisMode = mode;// only set mResTable, once it existsif (pass) {if (mResTable == null) {mResTable = getResTable();}mResTable.setAnalysisMode(mode);}}public void setCompressionMode() throws AndrolibException, IOException {// read the resources.arsc checking for STORED vs DEFLATE// this will determine whether we compress on rebuild or not.ZipExtFile zef = new ZipExtFile(mApkFile.getAbsolutePath());ZipArchiveEntry ze = zef.getEntry("resources.arsc");if (ze != null) {int compression = ze.getMethod();mCompressResources = (compression == ZipEntry.DEFLATED);}zef.close();}public void setTargetSdkVersion() throws AndrolibException, IOException {if (mResTable == null) {mResTable = mAndrolib.getResTable(mApkFile);}Map sdkInfo = mResTable.getSdkInfo();if (sdkInfo.get("targetSdkVersion") != null) {mApi = Integer.parseInt(sdkInfo.get("targetSdkVersion"));}}

public ResTable getResTable() throws AndrolibException {if (mResTable == null) {boolean hasResources = hasResources();boolean hasManifest = hasManifest();if (! (hasManifest || hasResources)) {//一个apk文件不能没有AndroidManifest.xml和resource.arsc，否则就不是合法的apk文件throw new AndrolibException("Apk doesn't contain either AndroidManifest.xml file or resources.arsc file");}AndrolibResources.sKeepBroken = mKeepBrokenResources;mResTable = mAndrolib.getResTable(mApkFile, hasResources);}return mResTable;}

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End！

?补充：
在decode()中有个writeMetaFile()方法没讲到，这里再看看。

   private void writeMetaFile() throws AndrolibException {Map meta = new LinkedHashMap();meta.put("version", Androlib.getVersion());//静态方法？meta.put("apkFileName", mApkFile.getName());//apk名称if (mDecodeResources != DECODE_RESOURCES_NONE && (hasManifest() || hasResources())) {//如果要反编译资源并且有资源文件或者manifest文件meta.put("isFrameworkApk", mAndrolib.isFrameworkApk(getResTable()));putUsesFramework(meta);putSdkInfo(meta);putPackageInfo(meta);putVersionInfo(meta);putCompressionInfo(meta);}putUnknownInfo(meta);//加入Unknown文件目录说明

　　　　 mAndrolib.writeMetaFile(mOutDir, meta); //将meta数据写入apktool.yml写入到输出目录
　　}

　　private void putUsesFramework(Map meta) throws AndrolibException {Set pkgs = getResTable().listFramePackages();if (pkgs.isEmpty()) {return;}Integer[] ids = new Integer[pkgs.size()];int i = 0;for (ResPackage pkg : pkgs) {ids[i++] = pkg.getId();}Arrays.sort(ids);Map uses = new LinkedHashMap();uses.put("ids", ids);//idsif (mAndrolib.apkOptions.frameworkTag != null) {//taguses.put("tag", mAndrolib.apkOptions.frameworkTag);}meta.put("usesFramework", uses);}private void putSdkInfo(Map meta) throws AndrolibException {Map info = getResTable().getSdkInfo();//ResTable可以获取sdk信息？if (info.size() > 0) {meta.put("sdkInfo", info);}}private void putPackageInfo(Map meta) throws AndrolibException {String renamed = getResTable().getPackageRenamed();//还可以获取package信息？String original = getResTable().getPackageOriginal();int id = getResTable().getPackageId();HashMap packages = new HashMap();// only put rename-manifest-package into apktool.yml, if the change will be requiredif (!renamed.equalsIgnoreCase(original)) {packages.put("rename-manifest-package", renamed);}packages.put("forced-package-id", String.valueOf(id));meta.put("packageInfo", packages);}private void putVersionInfo(Map meta) throws AndrolibException {Map info = getResTable().getVersionInfo();//获取版本信息if (info.size() > 0) {meta.put("versionInfo", info);}}private void putUnknownInfo(Map meta) throws AndrolibException {Map info = mAndrolib.mResUnknownFiles.getUnknownFiles();//Androlib会收集Unknwn文件if (info.size() > 0) {meta.put("unknownFiles", info);}}private void putCompressionInfo(Map meta) throws AndrolibException {meta.put("compressionType", getCompressionType());//压缩方式}

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