Class: Kount::Khash

Inherits:
Object
  • Object
show all
Defined in:
lib/kount/utils/khash.rb

Class Method Summary collapse

Class Method Details

.getkhash(data, len, m) ⇒ Object 



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# File 'lib/kount/utils/khash.rb', line 16

def self.getkhash(data, len, m)
  a = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ'
  r = Digest::SHA1.hexdigest("#{data}.#{m}")
  c = ''
  len = 17 if len > 17
  limit = 2 * len
  i = 0
  while i < limit
    c << a[r[i..i + 6].to_i(16) % 36]
    i += 2
  end
  c
end

.hash_check_payment(plain_text, ksalt) ⇒ Object 



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# File 'lib/kount/utils/khash.rb', line 37

def self.hash_check_payment(plain_text, ksalt)
  return plain_text if khashed?(plain_text)
  first_six = plain_text[0..5]
  mashed = getkhash(plain_text, 14, ksalt)
  "#{first_six}#{mashed}"
end

.hash_gift_card(plain_text, ksalt, merchant_id) ⇒ Object 



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# File 'lib/kount/utils/khash.rb', line 44

def self.hash_gift_card(plain_text, ksalt, merchant_id)
  mashed = getkhash(plain_text, 14, ksalt)
  "#{merchant_id}#{mashed}"
end

.hash_payment_token(plain_text, ksalt) ⇒ Object 



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# File 'lib/kount/utils/khash.rb', line 30

def self.hash_payment_token(plain_text, ksalt)
  return plain_text if khashed?(plain_text)
  first_six = plain_text[0..5]
  mashed = getkhash(plain_text, 14, ksalt)
  "#{first_six}#{mashed}"
end

.hash_token(plain_text, ptyp, ksalt, merchant_id = '') ⇒ String

Returns KHASH version of string.

Parameters:

  • plain_text (String) —

    String to be hashed

  • ptyp (String) —

    Payment type code: CARD, GIFT, or OTHER

Returns:

  • (String) —

    KHASH version of string



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# File 'lib/kount/utils/khash.rb', line 6

def self.hash_token(plain_text, ptyp, ksalt, merchant_id = '')
  if ptyp == 'CARD'
    HashPaymentToken(plain_text, ksalt)
  elsif ptyp == 'CHEK'
    HashCheckPayment(plain_text, ksalt)
  else
    HashGiftCard(plain_text, ksalt, merchant_id)
  end
end

.khashed?(val) ⇒ Boolean

Returns True if token is already khashed.

Parameters:

  • val (String) —

    Token that may or may not be khashed

Returns:

  • (Boolean) —

    True if token is already khashed



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# File 'lib/kount/utils/khash.rb', line 51

def self.khashed?(val)
  true if val =~ /(\d{6}[A-Z0-9]{14})/
end