Querying label

[cielavenir]

I'd like to query application-label. It isn't yet implemented? (although I can pipe aapt, it is quite heavy).

axml=Android::AXMLParser.new(zip.read('AndroidManifest.xml')) xml=axml.parse label_id=xml.get_elements('/manifest/application')[0].attributes['label'] arsc=Android::Resource.new(zip.read('resources.arsc'))

p arsc.query(label_id,'ja') #not implemented?

There are no ways to know label_id from arsc.strings...

[masatanish]

Thank you for your comment. Resource#query method is not implemented yet. Your suggestion sounds good.

I'll consider to implementing it. But I'm very busy now. If you have a pull requrest, I can merge it. Or please wait a few weeks.

[cielavenir]

1 month passed... Uh... Although I have little knowledge about resources.arsc, there was a little progress. After reading: http://justanapplication.wordpress.com/tag/androidresources/ http://justanapplication.wordpress.com/2011/09/17/android-internals-resources-part-six-the-typespec-chunk/ I was able to relate keyStrings to ID.

https://gist.github.com/4364699

Using my sample application http://dl.dropbox.com/u/46196585/mondayloader/MondayLoader.apk , apk.resource.keyStrings returns [[], ["ic_launcher"], ["main"], ["app_name", "text1", "text2", "textkey"], ["textView1", "textView2", "progressBar1", "textViewKey"]] So this code successfully points to "app_name".

Zip::ZipFile.open(path){|zip|
    xml=Android::AXMLParser.new(zip.read('AndroidManifest.xml')).parse
    label_id=xml.get_elements('/manifest/application')[0].attributes['label']
    query=label_id[3..-1].to_i(16) #0x7f040000
    arsc=Android::Resource.new(zip.read('resources.arsc'))
    p arsc.keyStrings
    p arsc.keyStrings[((query&0xff0000)>>16)-1][query&0xffff] 
}

But I still don't know how to relate this stuff with string pool...

Actually I'd like to add StreamParser to Android::AXMLParser, but that's after...

[cielavenir]

Another progress... https://gist.github.com/4365521

#!/usr/bin/ruby
require 'ruby_apk'
path='org.connectbot[ConnectBot]-323_1.7.1.apk'
Zip::ZipFile.open(path){|zip|
    xml=Android::AXMLParser.new(zip.read('AndroidManifest.xml')).parse
    label_id=xml.get_elements('/manifest/application')[0].attributes['label']
    query=label_id[3..-1].to_i(16)
    arsc=Android::Resource.new(zip.read('resources.arsc'))
    p arsc.keyStrings[((query&0xff0000)>>16)-1][query&0xffff]
    label_index=arsc.stringpool_relation[((query&0xff0000)>>16)-1][query&0xffff]
    p arsc.strings[label_index] #"ConnectBot" success!
}

But unfortunately this code is very dirty and doesn't work for some complex apks. further debug is required. But maybe I'm too tired...

[masatanish]

Thank you for your information. I'll try implementing it during this new year holidays.

[masatanish]

Hi cielavenir.

I've released v0.5.0. And this version includes Android::Resource#find method. You can get string by using this method with resource id like '@0x7f040000' or '@string/app_name'. This method supports only string resources for now.

I've tested only few cases. I think this version has some bugs. If you find bugs, let me know.

Thanks.

[cielavenir]

This code isn't working for some apks: http://pastebin.com/GYi86iva

#!/usr/bin/ruby
require 'find'
require 'ruby_apk'

LANG='ja'
DIR='/work/apk/data'
files=Dir.glob(DIR+'/**/*').grep(/\.apk$/)
packages=Hash.new([0,''])
files.each{|path|
    Zip::ZipFile.open(path){|zip|
        xml=Android::AXMLParser.new(zip.read('AndroidManifest.xml')).parse
        package=xml.get_elements('/manifest')[0].attributes['package']
        versionCode=xml.get_elements('/manifest')[0].attributes['versionCode'].to_i
        versionName=xml.get_elements('/manifest')[0].attributes['versionName']
        label=xml.get_elements('/manifest/application')[0].attributes['label']
        arsc=Android::Resource.new(zip.read('resources.arsc'))
        begin
            label=arsc.find(label,:lang=>LANG) if label[0,1]=='@'
            versionName=arsc.find(versionName,:lang=>LANG) if versionName[0,1]=='@'
            label=arsc.find(label) if !label
            versionName=arsc.find(versionName) if !versionName
        rescue
            puts package+' failed'
        end
        apkname="#{package}[#{label}]-#{versionCode}_#{versionName}.apk"
        apkname.tr!("/?*:\\\"'",'_')
        if versionCode>packages[package][0]
            #auto rename
            packages[package]=[versionCode,apkname]
            p packages[package]
        end
    }
}

[cielavenir]

I should have used this code, but this still fails on com.viber.voip

        begin
            label=arsc.find(label,:lang=>LANG)||arsc.find(label) if label[0,1]=='@'
            versionName=arsc.find(versionName,:lang=>LANG)||arsc.find(versionName) if versionName[0,1]=='@'
        rescue
            puts package+' failed'
        end

[masatanish]

Sorry for replying too late.

I've tried with com.viber.voip(v.2.2.0.1334 and v2.3.2.61). But I can't reproduce it. Which version did you use? or Can you send reproduced resource file?

Maybe the issue reported by you is a bug. I registered new issue #5, because I want to separate a bug from this item.

[gilesian]

hey masatanish, can you guide me in how to run it and test/use it... i am quite new to ruby

[masatanish]

Hi gllesian, you can run test with below.

$ bundle exec rake spec

The usage of ruby_apk is in readme.

BTW, if you don't need modify this library, you don't need clone the source. install ruby_apk gem with below, and put 'require "ruby_apk"' in top of your script.

$ gem install ruby_apk

then you can use ruby_apk in your script.