[BUG]Exception in thread "main" brut.androlib.AndrolibException: Could not decode arsc file

[dishcheng]

Information

1. Apktool Version (apktool -version) -2.6.1
2. Operating System (Mac, Linux, Windows) -Mac
3. APK From? (Playstore, ROM, Other) -Other

Stacktrace/Logcat

apktool d -f -s xxxx.apk

I: Using Apktool 2.6.1 on xxxx.apk
I: Loading resource table...
Exception in thread "main" brut.androlib.AndrolibException: Could not decode arsc file
	at brut.androlib.res.decoder.ARSCDecoder.decode(ARSCDecoder.java:55)
	at brut.androlib.res.AndrolibResources.getResPackagesFromApk(AndrolibResources.java:783)
	at brut.androlib.res.AndrolibResources.loadMainPkg(AndrolibResources.java:64)
	at brut.androlib.res.AndrolibResources.getResTable(AndrolibResources.java:56)
	at brut.androlib.Androlib.getResTable(Androlib.java:70)
	at brut.androlib.ApkDecoder.getResTable(ApkDecoder.java:247)
	at brut.androlib.ApkDecoder.decode(ApkDecoder.java:109)
	at brut.apktool.Main.cmdDecode(Main.java:175)
	at brut.apktool.Main.main(Main.java:79)
Caused by: java.io.IOException: Expected: 0x00000008, got: 0x00000003
	at brut.util.ExtDataInput.skipCheckShort(ExtDataInput.java:53)
	at brut.androlib.res.decoder.ARSCDecoder.readValue(ARSCDecoder.java:360)
	at brut.androlib.res.decoder.ARSCDecoder.readEntryData(ARSCDecoder.java:285)
	at brut.androlib.res.decoder.ARSCDecoder.readTableType(ARSCDecoder.java:261)
	at brut.androlib.res.decoder.ARSCDecoder.readTableTypeSpec(ARSCDecoder.java:184)
	at brut.androlib.res.decoder.ARSCDecoder.readTablePackage(ARSCDecoder.java:135)
	at brut.androlib.res.decoder.ARSCDecoder.readTableHeader(ARSCDecoder.java:84)
	at brut.androlib.res.decoder.ARSCDecoder.decode(ARSCDecoder.java:50)
	... 8 more

Steps to Reproduce

1. apktool

Frameworks

If this APK is from an OEM ROM (Samsung, HTC, LG). Please attach framework files
(.apks that live in /system/framework or /system/priv-app)

APK

Questions to ask before submission

1. Have you tried apktool d, apktool b without changing anything? yes
2. If you are trying to install a modified apk, did you resign it? no
3. Are you using the latest apktool version? yes

[dishcheng]

...

[iBotPeaches]

Confirmed. Marking as bug. Must be a new iteration of sparse resources or a new type.

[sys0613]

https://download.moutai519.com.cn/mt-download/app/v1/imoutai.apk
@dishcheng 请问解决了么，兄弟。

[dishcheng]

https://download.moutai519.com.cn/mt-download/app/v1/imoutai.apk
@dishcheng 请问解决了么，兄弟。

沒辦法

[sys0613]

@dishcheng 我刚开始弄，寻思研究研究，jar拿到了，没资源文件不行啊。刚用2.6.0试试，发现还是不行。再往前退版本，你试了么。是因为没有框架文件么？

[sys0613]

@iBotPeaches I have the same problem,How should I solve it,thanks

[AAA12702]

Same issue even with version 2.7

[eacmen]

In case it helps same stack trace also occurs on TTlock apk: https://m.apkpure.com/ttlock/com.tongtongsuo.app

[iBotPeaches]

An interesting technique. It seems we have a duplicate resource at the end of the chunk with no corresponding value. Its quite small and Apktool made an assumption that it would always have a ResValue if a non-empty specId was encountered.

      [ResTable_entry] id: 0x0596 name: zoom keyIndex: 5177 size: 8 flags: 0x0004
        [Res_value] size: 8 dataType: 0x12 data: 0x00000000 ((id))
      [ResTable_entry] id: 0x0597 name: zoom keyIndex: 5177 size: 8 flags: 0x0004
        [Res_value] size: 3 dataType: 0x12 data: 0x00000000 ((id))

You can see the last style is only size 3. So we can design a patch to skip value reading and return null if the size is small.

[iBotPeaches]

➜  2824 apktool d imoutai.apk -s -f
I: Using Apktool v2.8.1-54-7405e504-SNAPSHOT on imoutai.apk
I: Loading resource table...
W: Unknown data detected. Skipping: 6 byte(s)
I: Decoding file-resources...
I: Loading resource table from file: /home/ibotpeaches/.local/share/apktool/framework/1.apk
I: Decoding values */* XMLs...
I: Decoding AndroidManifest.xml with resources...
I: Regular manifest package...
I: Copying raw classes.dex file...
I: Copying assets and libs...
I: Copying unknown files...
I: Copying original files...
I: Copying META-INF/services directory
➜  2824 vim imoutai/AndroidManifest.xml 
➜  2824 apktool b imoutai --use-aapt2
I: Using Apktool v2.8.1-54-7405e504-SNAPSHOT
I: Copying imoutai classes.dex file...
I: Checking whether resources has changed...
I: Building resources...
I: Copying libs... (/lib)
I: Copying libs... (/kotlin)
I: Copying libs... (/META-INF/services)
I: Building apk file...
I: Copying unknown files/dir...
I: Built apk into: imoutai/dist/imoutai.apk
➜  2824 

PR above will close this once merged.