Class: IABConsentString::Consent::VendorConsentDecoder

Inherits:
Object
  • Object
show all
Defined in:
lib/iab_consent_string/consent/vendor_consent_decoder.rb

Overview

IABConsentString::Consent::VendorConsent decoder from Base64 string. Right now only version 1 is know, but eventually this can be extended to support new versions

Class Method Summary collapse

Class Method Details

.fromBase64String(consentString) ⇒ IABConsentString::Consent::VendorConsent

Build a IABConsentString::Consent::VendorConsent object from a base64 string

Returns:

Raises:

  • an error when there’s a problem with the consentString passed



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# File 'lib/iab_consent_string/consent/vendor_consent_decoder.rb', line 15

def self.fromBase64String(consentString)
  if consentString.nil?
    raise "Null or empty consent string passed as an argument"
  end
  fromByteArray(Base64.urlsafe_decode64(consentString).bytes.to_a)
end

.fromByteArray(bytes) ⇒ Object 



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# File 'lib/iab_consent_string/consent/vendor_consent_decoder.rb', line 22

def self.fromByteArray(bytes)
  if ( bytes.nil?  || bytes.length == 0)
    raise "Null or empty consent string passed as an argument"
  end
  bits = Bits.new(bytes)
  version = getVersion(bits)
  case version
  when 1
    IABConsentString::Consent::Implementation::V1::ByteBufferBackedVendorConsent.new(bits)
  else
    raise "Unsupported version: " + version.to_s
  end
end

.getVersion(bits) ⇒ Object 



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# File 'lib/iab_consent_string/consent/vendor_consent_decoder.rb', line 36

def self.getVersion(bits)
  bits.getInt(IABConsentString::GDPRConstants::VERSION_BIT_OFFSET, IABConsentString::GDPRConstants::VERSION_BIT_SIZE)
end