Class: PedicelPay::TokenData

Inherits:
Object
  • Object
show all
Defined in:
lib/pedicel-pay/token_data.rb

Constant Summary collapse

Error = 
Class.new(PedicelPay::Error)
DateError = 
Class.new(Error)
CURRENCIES = 
%w[
  008 012 032 036 044 048 050 051 052 060 064 068 072 084 090 096 104 108
  116 124 132 136 144 152 156 170 174 188 191 192 203 208 214 222 230 232
  238 242 262 270 292 320 324 328 332 340 344 348 352 356 360 364 368 376
  388 392 398 400 404 408 410 414 417 418 422 426 430 434 446 454 458 462
  480 484 496 498 504 512 516 524 532 533 548 554 558 566 578 586 590 598
  600 604 608 634 643 646 654 682 690 694 702 704 706 710 728 748 752 756
  760 764 776 780 784 788 800 807 818 826 834 840 858 860 882 886 901 929
  930 931 932 933 934 936 937 938 940 941 943 944 946 947 948 949 950 951
  952 953 955 956 957 958 959 960 961 962 963 964 965 967 968 969 970 971
  972 973 975 976 977 978 979 980 981 984 985 986 990 994 997 999
].freeze

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(pan: nil, expiry: nil, currency: nil, amount: nil, name: nil, dm_id: nil, cryptogram: nil, eci: nil) ⇒ TokenData 



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# File 'lib/pedicel-pay/token_data.rb', line 31

def initialize(pan: nil, expiry: nil, currency: nil, amount: nil,
               name: nil, dm_id: nil, cryptogram: nil, eci: nil)
  @pan        = pan
  @expiry     = expiry
  @currency   = currency
  @amount     = amount
  @name       = name
  @dm_id      = dm_id
  @cryptogram = cryptogram
  @eci        = eci
end

Instance Attribute Details

#amount ⇒ Object

Returns the value of attribute amount.



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# File 'lib/pedicel-pay/token_data.rb', line 8

def amount
  @amount
end

#cryptogram ⇒ Object

Returns the value of attribute cryptogram.



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# File 'lib/pedicel-pay/token_data.rb', line 8

def cryptogram
  @cryptogram
end

#currency ⇒ Object

Returns the value of attribute currency.



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# File 'lib/pedicel-pay/token_data.rb', line 8

def currency
  @currency
end

#dm_id ⇒ Object

Returns the value of attribute dm_id.



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# File 'lib/pedicel-pay/token_data.rb', line 8

def dm_id
  @dm_id
end

#eci ⇒ Object

Returns the value of attribute eci.



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# File 'lib/pedicel-pay/token_data.rb', line 8

def eci
  @eci
end

#expiry ⇒ Object

Returns the value of attribute expiry.



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# File 'lib/pedicel-pay/token_data.rb', line 8

def expiry
  @expiry
end

#name ⇒ Object

Returns the value of attribute name.



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# File 'lib/pedicel-pay/token_data.rb', line 8

def name
  @name
end

#pan ⇒ Object

Returns the value of attribute pan.



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# File 'lib/pedicel-pay/token_data.rb', line 8

def pan
  @pan
end

Class Method Details

.sample_expiry(expired: nil, now: nil, soon: nil) ⇒ Object 



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# File 'lib/pedicel-pay/token_data.rb', line 108

def self.sample_expiry(expired: nil, now: nil, soon: nil)
  # WARNING: Time calculations ahead!
  # Think very carefully about all the crazy corner cases.

  now  ||= Time.now
  soon ||= now + 5 * 60

  year  = sample_expiry_year(expired: expired, soon: soon)
  month = sample_expiry_month(expired: expired, year: year, now: now, soon: soon)

  require 'date'
  Date.civil(year, month, -1).strftime('%y%m%d')
end

.sample_expiry_month(expired: nil, year:, now:, soon:) ⇒ Object 



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# File 'lib/pedicel-pay/token_data.rb', line 135

def self.sample_expiry_month(expired: nil, year:, now:, soon:)
  # WARNING: Time calculations ahead!
  # Think very carefully about all the crazy corner cases.

  case expired
  when nil
    1..12
  when true
    year < now.year ? 1..12 : 1..(now.month - 1)
  when false
    raise DateError, 'cannot expire in a soon future year' if expired && year > soon.year

    year == soon.year ? 1..soon.month : 1..12
  end
    .to_a.sample
end

.sample_expiry_year(expired: nil, soon:) ⇒ Object 



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# File 'lib/pedicel-pay/token_data.rb', line 122

def self.sample_expiry_year(expired: nil, soon:)
  # WARNING: Time calculations ahead!
  # Think very carefully about all the crazy corner cases.

  case expired
  when nil   then -5..6
  when true  then -5..0
  when false then 0..6
  end
    .map { |i| soon.year + i }
    .to_a.sample
end

Instance Method Details

#card_expired?(now) ⇒ Boolean 



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# File 'lib/pedicel-pay/token_data.rb', line 104

def card_expired?(now)
  Time.parse(expiry) <= now
end

#sample(expired: nil, pan_length: nil) ⇒ Object 



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# File 'lib/pedicel-pay/token_data.rb', line 66

def sample(expired: nil, pan_length: nil)
  # PAN
  # Override @pan if pan_length doesn't match.
  if pan.nil? || (pan_length && pan.length != pan_length)
    pan_length ||= [12, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 19, 19, 19].sample

    self.pan = [ [2, 4, 5, 6].sample, *(2..pan_length).map { rand(0..9) } ].join
  end

  # Expiry
  # Override @expiry if it doesn't match `expired`.
  # WARNING: Time calculations ahead!
  # Think very carefully about all the crazy corner cases.
  now = Time.now
  if expiry.nil? || (expired ^ card_expired?(now)) # Cannot use "soon".
    self.expiry = self.class.sample_expiry(expired: expired, now: now, soon: now + 5 * 60)
  end

  # Currency
  self.currency ||= CURRENCIES.sample

  # Amount
  self.amount ||= rand(100..99_999)

  # Name

  # Device Manufacturer Identification
  self.dm_id ||= Helper.bytestring_to_hex(PedicelPay.config[:random].bytes(5))

  # Cryptogram
  self.cryptogram ||= Base64.strict_encode64(PedicelPay.config[:random].bytes(20))

  # ECI
  self.eci ||= %w[05 06 07].sample

  self
end

#to_hash ⇒ Object 



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# File 'lib/pedicel-pay/token_data.rb', line 43

def to_hash
  data = { onlinePaymentCryptogram: cryptogram }
  data[:eciIndicator] = eci if eci

  result = {
    applicationPrimaryAccountNumber: pan,
    applicationExpirationDate: expiry,
    currencyCode: currency,
    transactionAmount: amount,
    deviceManufacturerIdentifier: dm_id,
    paymentDataType: '3DSecure',
    paymentData: data
  }

  result[:cardholderName] = name if name

  result
end

#to_json ⇒ Object 



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# File 'lib/pedicel-pay/token_data.rb', line 62

def to_json
  to_hash.to_json
end