Class: AppInfo::AAB

Inherits:
Object show all
Extended by:
Forwardable
Includes:
Helper::HumanFileSize
Defined in:
lib/app_info/aab.rb

Overview

Parse APK file

Defined Under Namespace

Modules: Device

Constant Summary collapse

BASE_PATH = 
'base'
BASE_MANIFEST = 
"#{BASE_PATH}/manifest/AndroidManifest.xml"
BASE_RESOURCES = 
"#{BASE_PATH}/resources.pb"

Constants included from Helper::HumanFileSize

Helper::HumanFileSize::FILE_SIZE_UNITS

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from Helper::HumanFileSize

#file_to_human_size, #number_to_human_size

Constructor Details

#initialize(file) ⇒ AAB

Returns a new instance of AAB.



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# File 'lib/app_info/aab.rb', line 28

def initialize(file)
  @file = file
end

Instance Attribute Details

#file ⇒ Object (readonly)

Returns the value of attribute file.



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# File 'lib/app_info/aab.rb', line 13

def file
  @file
end

Instance Method Details

#activities ⇒ Object 



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# File 'lib/app_info/aab.rb', line 110

def activities
  @activities ||= manifest.activities
end

#automotive? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/app_info/aab.rb', line 89

def automotive?
  use_features.include?('android.hardware.type.automotive')
end

#certificates ⇒ Object 



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# File 'lib/app_info/aab.rb', line 148

def certificates
  @certificates ||= signs.each_with_object([]) do |sign, obj|
    obj << APK::Certificate.new(sign.path, sign.sign.certificates[0])
  end
end

#clear! ⇒ Object 



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# File 'lib/app_info/aab.rb', line 209

def clear!
  return unless @contents

  FileUtils.rm_rf(@contents)

  @aab = nil
  @contents = nil
  @icons = nil
  @app_path = nil
  @info = nil
end

#components ⇒ Object 



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# File 'lib/app_info/aab.rb', line 118

def components
  @components ||= manifest.components.transform_values
end

#contents ⇒ Object 



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# File 'lib/app_info/aab.rb', line 221

def contents
  @contents ||= File.join(Dir.mktmpdir, "AppInfo-android-#{SecureRandom.hex}")
end

#device_type ⇒ Object 



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# File 'lib/app_info/aab.rb', line 60

def device_type
  if wear?
    Device::WATCH
  elsif tv?
    Device::TV
  elsif automotive?
    Device::AUTOMOTIVE
  else
    Device::PHONE
  end
end

#each_file ⇒ Object 



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# File 'lib/app_info/aab.rb', line 154

def each_file
  zip.each do |entry|
    next unless entry.file?

    yield entry.name, @zip.read(entry)
  end
end

#entry(name, base_path: BASE_PATH) ⇒ Object

Raises:



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# File 'lib/app_info/aab.rb', line 169

def entry(name, base_path: BASE_PATH)
  entry = @zip.find_entry(File.join(base_path, name))
  raise NotFoundError, "'#{name}'" if entry.nil?

  entry
end

#icons ⇒ Object 



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# File 'lib/app_info/aab.rb', line 190

def icons
  @icons ||= manifest.icons.each_with_object([]) do |res, obj|
    path = res.value
    filename = File.basename(path)
    filepath = File.join(contents, File.dirname(path))
    file = File.join(filepath, filename)
    FileUtils.mkdir_p filepath

    binary_data = read_file(path)
    File.write(file, binary_data, encoding: Encoding::BINARY)

    obj << {
      name: filename,
      file: file,
      dimensions: ImageSize.path(file).size
    }
  end
end

#manifest ⇒ Object 



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# File 'lib/app_info/aab.rb', line 176

def manifest
  io = zip.read(zip.find_entry(BASE_MANIFEST))
  @manifest ||= Protobuf::Manifest.parse(io, resource)
end

#min_sdk_version ⇒ Object Also known as: min_os_version 



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# File 'lib/app_info/aab.rb', line 93

def min_sdk_version
  manifest.uses_sdk.min_sdk_version
end

#name ⇒ Object 



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# File 'lib/app_info/aab.rb', line 56

def name
  manifest.label
end

#os ⇒ Object Also known as: file_type 



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# File 'lib/app_info/aab.rb', line 36

def os
  Platform::ANDROID
end

#package_name ⇒ Object Also known as: identifier, bundle_id 



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# File 'lib/app_info/aab.rb', line 45

def package_name
  manifest.package
end

#read_file(name, base_path: BASE_PATH) ⇒ Object 



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# File 'lib/app_info/aab.rb', line 162

def read_file(name, base_path: BASE_PATH)
  content = @zip.read(entry(name, base_path: base_path))
  return parse_binary_xml(content) if xml_file?(name)

  content
end

#resource ⇒ Object 



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# File 'lib/app_info/aab.rb', line 181

def resource
  io = zip.read(zip.find_entry(BASE_RESOURCES))
  @resource ||= Protobuf::Resources.parse(io)
end

#services ⇒ Object 



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# File 'lib/app_info/aab.rb', line 114

def services
  @services ||= manifest.services
end

#sign_version ⇒ Object 



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# File 'lib/app_info/aab.rb', line 122

def sign_version
  return 'v1' unless signs.empty?

  # when ?
  # https://source.android.com/security/apksigning/v2?hl=zh-cn
  #   'v2'
  # when ?
  # https://source.android.com/security/apksigning/v3?hl=zh-cn
  #   'v3'
  'unknown'
end

#signs ⇒ Object 



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# File 'lib/app_info/aab.rb', line 134

def signs
  return @signs if @signs

  @signs = []
  each_file do |path, data|
    # find META-INF/xxx.{RSA|DSA}
    next unless path =~ %r{^META-INF/} && data.unpack('CC') == [0x30, 0x82]

    @signs << APK::Sign.new(path, OpenSSL::PKCS7.new(data))
  end

  @signs
end

#size(human_size: false) ⇒ Object 



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# File 'lib/app_info/aab.rb', line 32

def size(human_size: false)
  file_to_human_size(@file, human_size: human_size)
end

#target_sdk_version ⇒ Object 



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# File 'lib/app_info/aab.rb', line 98

def target_sdk_version
  manifest.uses_sdk.target_sdk_version
end

#tv? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/app_info/aab.rb', line 85

def tv?
  use_features.include?('android.software.leanback')
end

#use_features ⇒ Object 



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# File 'lib/app_info/aab.rb', line 102

def use_features
  @use_features ||= manifest&.uses_feature&.map(&:name)
end

#use_permissions ⇒ Object 



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# File 'lib/app_info/aab.rb', line 106

def use_permissions
  @use_permissions ||= manifest&.uses_permission&.map(&:name)
end

#version_code ⇒ Object Also known as: build_version 



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# File 'lib/app_info/aab.rb', line 51

def version_code
  manifest.version_code.to_s
end

#wear? ⇒ Boolean

TODO: find a way to detect Found answer but not works: stackoverflow.com/questions/9279111/determine-if-the-device-is-a-smartphone-or-tablet def tablet?

resource.first_package
        .entries('bool')
        .select{|e| e.name == 'isTablet' }
        .size >= 1

end

Returns:

  • (Boolean) 


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# File 'lib/app_info/aab.rb', line 81

def wear?
  use_features.include?('android.hardware.type.watch')
end

#zip ⇒ Object 



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# File 'lib/app_info/aab.rb', line 186

def zip
  @zip ||= Zip::File.open(@file)
end