android 代码混淆
proguard 原理
Java代码编译成二进制class 文件,这个class 文件也可以反编译成源代码 ,除了注释外,原来的code 基本都可以看到。为了防止重要code 被泄露,我们往往需要混淆(Obfuscation code , 也就是把方法,字段,包和类这些java 元素的名称改成无意义的名称,这样代码结构没有变化,还可以运行,但是想弄懂代码的架构却很难。 proguard 就是这样的混淆工具,它可以分析一组class 的结构,根据用户的配置,然后把这些class 文件的可以混淆java 元素名混淆掉。在分析class 的同时,他还有其他两个功能,删除无效代码(Shrinking 收缩),和代码进行优化 (Optimization Options)。
缺省情况下,proguard 会混淆所有代码,但是下面几种情况是不能改变java 元素的名称,否则就会这样就会导致程序出错。
一, 我们用到反射的地方。
二, 我们代码依赖于系统的接口,比如被系统代码调用的回调方法,这种情况最复杂。
三, 是我们的java 元素名称是在配置文件中配置好的。
所以使用proguard时,我们需要有个配置文件告诉proguard 那些java 元素是不能混淆的。
-include {filename} 从给定的文件中读取配置参数
-basedirectory {directoryname} 指定基础目录为以后相对的档案名称
-injars {class_path} 指定要处理的应用程序jar,war,ear和目录
-outjars {class_path} 指定处理完后要输出的jar,war,ear和目录的名称
-libraryjars {classpath} 指定要处理的应用程序jar,war,ear和目录所需要的程序库文件
-dontskipnonpubliclibraryclasses 指定不去忽略非公共的库类。
-dontskipnonpubliclibraryclassmembers 指定不去忽略包可见的库类的成员。
保留选项
-keep {Modifier} {class_specification} 保护指定的类文件和类的成员
-keepclassmembers {modifier} {class_specification} 保护指定类的成员,如果此类受到保护他们会保护的更好
-keepclasseswithmembers {class_specification} 保护指定的类和类的成员,但条件是所有指定的类和类成员是要存在。
-keepnames {class_specification} 保护指定的类和类的成员的名称(如果他们不会压缩步骤中删除)
-keepclassmembernames {class_specification} 保护指定的类的成员的名称(如果他们不会压缩步骤中删除)
-keepclasseswithmembernames {class_specification} 保护指定的类和类的成员的名称,如果所有指定的类成员出席(在压缩步骤之后)
-printseeds {filename} 列出类和类的成员-keep选项的清单,标准输出到给定的文件
压缩
-dontshrink 不压缩输入的类文件
-printusage {filename}
-whyareyoukeeping {class_specification}
优化
-dontoptimize 不优化输入的类文件
-assumenosideeffects {class_specification} 优化时假设指定的方法,没有任何副作用
-allowaccessmodification 优化时允许访问并修改有修饰符的类和类的成员
混淆
-dontobfuscate 不混淆输入的类文件
-printmapping {filename}
-applymapping {filename} 重用映射增加混淆
-obfuscationdictionary {filename} 使用给定文件中的关键字作为要混淆方法的名称
-overloadaggressively 混淆时应用侵入式重载
-useuniqueclassmembernames 确定统一的混淆类的成员名称来增加混淆
-flattenpackagehierarchy {package_name} 重新包装所有重命名的包并放在给定的单一包中
-repackageclass {package_name} 重新包装所有重命名的类文件中放在给定的单一包中
-dontusemixedcaseclassnames 混淆时不会产生形形色色的类名
-keepattributes {attribute_name,...} 保护给定的可选属性,例如LineNumberTable, LocalVariableTable, SourceFile, Deprecated, Synthetic, Signature, and InnerClasses.
-renamesourcefileattribute {string} 设置源文件中给定的字符串常量
-optimizationpasses 5 ->设置混淆的压缩比率 0 ~ 7
-dontusemixedcaseclassnames -> Aa aA
-dontskipnonpubliclibraryclasses ->如果应用程序引入的有jar包,并且想混淆jar包里面的class
-dontpreverify
-verbose ->混淆后生产映射文件 map 类名->转化后类名的映射
-optimizations !code/simplification/arithmetic,!field/*,!class/merging/* ->混淆采用的算法.
例子:
# To enable ProGuard in your project, edit project.properties
# to define the proguard.config property as described in that file.
#
# Add project specific ProGuard rules here.
# By default, the flags in this file are appended to flags specified
# in ${sdk.dir}/tools/proguard/proguard-android.txt
# You can edit the include path and order by changing the ProGuard
# include property in project.properties.
#
# For more details, see
# http://developer.android.com/guide/developing/tools/proguard.html
# Add any project specific keep options here:
-optimizationpasses 5
-dontusemixedcaseclassnames
-dontskipnonpubliclibraryclasses
-dontpreverify
-verbose
-optimizations !code/simplification/arithmetic,!field/*,!class/merging/*
-keepattributes *Annotation*
-keepattributes Signature
#-library dyuproject
-keeppackagenames java.util.**
-dontwarn java.util.**
-keep public class ?????.app.common.sso.WeChatPLT{ *;}
-keepnames class ?????????.activity.AbstractH5Activity$* {
public <fields>;
public <methods>;
}
-keepnames class ?????????.h5.AdvertiseH5Activity$* {
public <fields>;
public <methods>;
}
-keep public class ?????????.fragment.** {*;}
-keep public class ?????????.homepage.MainFragmentActivity {*;}
-keep public class ?????.???.service.???Service {*;}
-keep public class java.util..**{ *; }
-keep public class ?????.app.processor.ResponseTypeReference{ *; }
-keep public class ?????.app.processor.BaseProcessorV2{ *; }
-keep public class ?????.app.processor.BaseProcessorV2$ProcessorTask{ *; }
-keep public class ?????.app.processor.RestAsyncTaskV2{ *; }
#-keep public class * extends ?????.app.processor.BaseProcessorV2{ *; }
#-keep public class * extends ?????.app.processor.RestAsyncTaskV2{ *; }
-keep public class ?????????.activity.**{ *; }
-dontnote com.handmark.pulltorefresh.library.PullToRefreshBase$OnSmoothScrollFinishedListener
-dontnote **ILicensingService
-keep public class com.handmark.pulltorefresh.library.**{ *; }
-keep public class com.handmark.pulltorefresh.library.PullToRefreshBase$OnSmoothScrollFinishedListener { *; }
-keep public class ?????.app.model.** {
public void set*(***);
public *** get*();
public *** is*();
}
-keep public class ?????.app.common.http.entities.**{
public void set*(***);
public *** get*();
}
-keep public class ?????.app.common.** {*;}
-keep public class ?????.???.model.** {
public void set*(***);
public *** get*();
public *** is*();
}
-keepclassmembers public class ?????.app.common.sso.WeChatPLT{
public void onEvent(***);
}
-keep class **.R$* {
*;
}
-keep public class ?????.app.utils.TrackerUtil{ *; }
#-keep public class ?????.app.utils.FileUtils{ *; }
#-libraryjars libs/jackson-mapper-lgpl-1.7.4.jar
-dontwarn org.codehaus.jackson.**
-keep class org.codehaus.jackson.** { *; }
#-libraryjars libs/jackson-core-lgpl-1.7.4.jar
-dontwarn org.codehaus.jackson.**
-keep class org.codehaus.jackson.** { *; }
#-libraryjars libs/alipay.jar
-dontwarn com.alipay.android.app.**
-keep class com.alipay.android.app.** { *; }
#-libraryjars libs/jpush-sdk-release1.5.5.jar
-dontwarn cn.jpush.android.**
-keep class cn.jpush.android.** { *; }
#-libraryjars libs/libammsdk.jar
-dontwarn com.tencent.mm.**
-keep class com.tencent.mm.** { *; }
#-libraryjars libs/libGoogleAnalyticsServices.jar
-dontwarn com.google.**
-keep class com.google.** { *; }
#-libraryjars libs/locSDK_3.1.jar
-dontwarn com.baidu.location.**
-keep class com.baidu.location.** { *; }
#-libraryjars libs/mta-sdk-1.0.0.jar
-dontwarn com.tencent.stat.**
-keep class com.tencent.stat.** { *; }
#-libraryjars libs/open_sdk.jar
-dontwarn com.tencent.**
-keep class com.tencent.** { *; }
#-libraryjars libs/photoview.jar
-dontwarn uk.co.senab.photoview.**
-keep class uk.co.senab.photoview.** { *; }
#-libraryjars libs/scribe-1.3.1.jar
-dontwarn org.scribe.**
-keep class org.scribe.** { *; }
#-libraryjars libs/umeng_sdk.jar
-dontwarn com.umeng.**
-keep class com.umeng.** { *; }
#-libraryjars libs/UPPayAssistEx.jar
-dontwarn com.unionpay.**
-keep class com.unionpay.** { *; }
#-libraryjars libs/UPPayPluginEx.jar
-dontwarn com.unionpay.**
-keep class com.unionpay.** { *; }
#-libraryjars libs/weibosdkcore.jar
-dontwarn com.sina.**
-keep class com.sina.** { *; }
#-libraryjars libs/android-support-v4.jar
-dontwarn android.support.v4.**
-keep class android.support.v4.** { *; }
-keep interface android.support.v4.app.** { *; }
-keep public class * extends android.support.v4.**
-keep public class * extends android.app.Fragment
-keep public class * extends android.app.Activity
-keep public class * extends android.app.Application
-keep public class * extends android.app.Service
-keep public class * extends android.content.BroadcastReceiver
-keep public class * extends android.content.ContentProvider
-keep public class * extends android.app.backup.BackupAgentHelper
-keep public class * extends android.preference.Preference
-keep public class com.android.vending.licensing.ILicensingService
-keepclasseswithmembernames class * {
native <methods>;
}
-keepclasseswithmembers class * {
public <init>(android.content.Context, android.util.AttributeSet);
}
-keepclasseswithmembers class * {
public <init>(android.content.Context, android.util.AttributeSet, int);
}
-keepclassmembers class * extends android.app.Activity {
public void *(android.view.View);
}
-keepclassmembers enum * {
public static **[] values();
public static ** valueOf(java.lang.String);
}
-keep class * implements android.os.Parcelable {
public static final android.os.Parcelable$Creator *;
}
# If your project uses WebView with JS, uncomment the following
# and specify the fully qualified class name to the JavaScript interface
# class:
#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
# public *;
#}
-keep public class com.alipay.** {*;}
-keep public class com.sina.** {*;}
-keep public class com.handmark.** {*;}
-keep public class de.greenrobot.** {*;}
-dontwarn de.greenrobot.**
-keep public class com.sina.** {*;}
-keep public class com.squareup.** {*;}
-dontwarn com.squareup.**
-keep public class com.baidu.** {*;}
-keep public class com.slidingmenu.** {*;}
-keep public class com.tecent.** {*;}
-keep public class com.google.** {*;}
-keep public class com.unionpay.** {*;}
-keep public class com.UCMobile.** {*;}
-keep public class org.** {*;}
-keep public class uk.** {*;}
-keep public class android.* {*;}
-keep public class u.** {*;}
-keep public class com.crashlytics.** {*;}