Class: ApkAnalyzer::Analyzer

Inherits:
Object
  • Object
show all
Defined in:
lib/apk_analyzer/analyzer.rb

Constant Summary collapse

HEX_FALSE = 
'0x0'.freeze
HEX_TRUE = 
'0xffffffff'.freeze
REQUIRED = 
'required'.freeze
GL_ES_VERSION = 
'glEsVersion'
NAME = 
'name'
ACTION = 
'action'
CATEGORY = 
'category'
ANDROID_MANIFEST_FILE = 
'AndroidManifest.xml'

Instance Method Summary collapse

Constructor Details

#initialize(apk_path) ⇒ Analyzer

Returns a new instance of Analyzer.



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# File 'lib/apk_analyzer/analyzer.rb', line 17

def initialize(apk_path)
  # Deactivating invalid date warnings in zip for apktools gem and apk analyzer code
  Zip.warn_invalid_date = false
  @apk_path = apk_path
  raise 'File is not a valid apk file' unless valid_zip?(apk_path)
  @apk_xml = ApkXml.new(apk_path)
end

Instance Method Details

#collect_cert_info ⇒ Object

Certificate info. Issuer and dates



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# File 'lib/apk_analyzer/analyzer.rb', line 70

def collect_cert_info
  # Redirect keytool check error to /dev/null
  os_has_keytool = system('keytool 2>/dev/null')
  raise 'keytool dependency not satisfied. Make sure that JAVA keytool utility is installed' unless os_has_keytool
  cert_info = {}
  certificate_raw = `keytool -printcert -rfc -jarfile #{@apk_path.shellescape}`
  certificate_content_regexp = /(-----BEGIN CERTIFICATE-----.*-----END CERTIFICATE-----)/m
  matched_data = certificate_content_regexp.match(certificate_raw)
  if matched_data
    certificate_content = matched_data.captures[0]
    cert_info = {
        issuer_raw: nil,
        cn: nil,
        ou: nil,
        o: nil,
        st: nil,
        l: nil,
        c: nil,
        creation_date: nil,
        expiration_date: nil
    }
    cert_extract_dates(certificate_content, cert_info)
    cert_extract_issuer(certificate_content, cert_info)
  else
    puts 'Failed to find CERT.RSA file in APK'
  end
  cert_info
end

#collect_manifest_info ⇒ Object 



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# File 'lib/apk_analyzer/analyzer.rb', line 25

def collect_manifest_info
  manifest_file_path = find_file_in_apk(ANDROID_MANIFEST_FILE)
  raise 'Failed to find Manifest file in apk' if manifest_file_path.nil?
  begin
    manifest_xml = Nokogiri::XML(@apk_xml.parse_xml('AndroidManifest.xml', true, true))
  rescue => e
    puts "Failed to parse #{ANDROID_MANIFEST_FILE}"
    log_expection e
  end

  manifest_info = {}
  begin
    manifest_info[:path_in_apk] = manifest_file_path
    content = {}
    # application content
    content[:application_info] = collect_application_info(manifest_xml)

    # intents
    content[:intents] = collect_intent_info(manifest_xml)

    # sdk infos
    sdk_infos = collect_sdk_info(manifest_xml)
    content[:uses_sdk] = { minimum_sdk_version: sdk_infos[0], target_sdk_version: sdk_infos[1] }

    # uses permission
    uses_permissions = collect_uses_permission_info(manifest_xml)
    content[:uses_permissions] = uses_permissions

    # uses features
    feature_list = collect_uses_feature_info(manifest_xml)
    content[:uses_features] = feature_list

    # screen compatibility
    supported_screens = collect_supported_screens(manifest_xml)
    content[:supports_screens] = supported_screens

    manifest_info[:content] = content
  rescue => e
    log_expection e
    raise "Invalid xml found"
  end
  manifest_info
end