使用CORBA混淆Android应用 [英] Obfuscating Android app with CORBA

问题描述

结果非常糟糕，以至于我在android应用程序中使用了jacorb.jar和CORBA接口.当我尝试使用Proguard混淆代码时，会收到很多这样的警告:

    [proguard] Warning: org.jacorb.orb.standardInterceptors.SASComponentInterceptor: can't find referenced
class org.ietf.jgss.Oid

结果是:

 [proguard] Warning: there were 1223 unresolved references to classes or interfaces.
 [proguard]          You may need to specify additional library jars (using '-libraryjars'),
 [proguard]          or perhaps the '-dontskipnonpubliclibraryclasses' option.
 [proguard] Warning: there were 33 unresolved references to program class member
s.
 [proguard]          Your input classes appear to be inconsistent.
 [proguard]          You may need to recompile them and try again.
 [proguard]          Alternatively, you may have to specify the options
 [proguard]          '-dontskipnonpubliclibraryclasses' and/or
 [proguard]          '-dontskipnonpubliclibraryclassmembers'.

我的proguard.cfg:

-injars      bin/classes
-outjars     bin/classes-processed.jar
-libraryjars C:/android-sdk-windows/platforms/android-7/android.jar
-libraryjars libs

-dontpreverify
-repackageclasses ''
-allowaccessmodification
-optimizations !code/simplification/arithmetic
-keepattributes *Annotation*
-dontskipnonpubliclibraryclasses
-dontskipnonpubliclibraryclassmembers
-dontnote

-keep class com.android.vending.billing.**

-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.view.View {
    public <init>(android.content.Context);
    public <init>(android.content.Context, android.util.AttributeSet);
    public <init>(android.content.Context, android.util.AttributeSet, int);
    public void set*(...);
}

-keepclasseswithmembers class * {
    public <init>(android.content.Context, android.util.AttributeSet);
}

-keepclasseswithmembers class * {
    public <init>(android.content.Context, android.util.AttributeSet, int);
}

-keepclassmembers class * implements android.os.Parcelable {
    static android.os.Parcelable$Creator CREATOR;
}

-keepclassmembers class **.R$* {
    public static <fields>;
}

如何更正这些警告并建立可运行的apk文件?

解决方案

Cfr. ProGuard手册>故障排除>警告:找不到超类或接口.

Jacorb似乎依赖于JGSS，它不是Android运行时的一部分.从理论上讲，应将JGSS指定为库包.但是，由于您的应用程序在没有JGSS的情况下已经可以正常运行，因此可以公平地假设从未使用过这部分代码.然后，您可以关闭警告:

-dontwarn org.ietf.jgss.**

ProGuard将不再抱怨这些缺少的类，并继续处理代码.控制台输出中的摘要表明，有许多类可能很相似.

It so fell out that I use jacorb.jar and CORBA interfaces in my android app. And when I try obfuscate code using Proguard I get a lot of warnings like this one:

    [proguard] Warning: org.jacorb.orb.standardInterceptors.SASComponentInterceptor: can't find referenced
class org.ietf.jgss.Oid

And as the result:

 [proguard] Warning: there were 1223 unresolved references to classes or interfaces.
 [proguard]          You may need to specify additional library jars (using '-libraryjars'),
 [proguard]          or perhaps the '-dontskipnonpubliclibraryclasses' option.
 [proguard] Warning: there were 33 unresolved references to program class member
s.
 [proguard]          Your input classes appear to be inconsistent.
 [proguard]          You may need to recompile them and try again.
 [proguard]          Alternatively, you may have to specify the options
 [proguard]          '-dontskipnonpubliclibraryclasses' and/or
 [proguard]          '-dontskipnonpubliclibraryclassmembers'.

My proguard.cfg :

-injars      bin/classes
-outjars     bin/classes-processed.jar
-libraryjars C:/android-sdk-windows/platforms/android-7/android.jar
-libraryjars libs

-dontpreverify
-repackageclasses ''
-allowaccessmodification
-optimizations !code/simplification/arithmetic
-keepattributes *Annotation*
-dontskipnonpubliclibraryclasses
-dontskipnonpubliclibraryclassmembers
-dontnote

-keep class com.android.vending.billing.**

-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.view.View {
    public <init>(android.content.Context);
    public <init>(android.content.Context, android.util.AttributeSet);
    public <init>(android.content.Context, android.util.AttributeSet, int);
    public void set*(...);
}

-keepclasseswithmembers class * {
    public <init>(android.content.Context, android.util.AttributeSet);
}

-keepclasseswithmembers class * {
    public <init>(android.content.Context, android.util.AttributeSet, int);
}

-keepclassmembers class * implements android.os.Parcelable {
    static android.os.Parcelable$Creator CREATOR;
}

-keepclassmembers class **.R$* {
    public static <fields>;
}

How to correct these warnings and build working apk file?

解决方案

Cfr. ProGuard manual > Troubleshooting > Warning: can't find superclass or interface.

Jacorb appears to depend on JGSS, which is not part of the Android runtime. In theory, JGSS should be specified as a library package. However, since your app already runs fine without JGSS, it's fair to assume that this part of the code is never used. You can then switch off the warnings:

-dontwarn org.ietf.jgss.**

ProGuard will no longer complain about these missing classes and proceed with processing the code. The summary in your console output suggests that there are many classes that are probably similar.

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