Class: Monri::ValidateCallback

Inherits:
Object
  • Object
show all
Defined in:
lib/monri/validate_callback.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#config ⇒ Monri::Config 



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# File 'lib/monri/validate_callback.rb', line 5

def config
  @config
end

Instance Method Details

#validate(header, body, options = {}) ⇒ Hash{Symbol->String | TrueClass | FalseClass 



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# File 'lib/monri/validate_callback.rb', line 11

def validate(header, body, options = {})

  unless header.is_a?(String)
    raise Monri::Errors::InvalidArgumentsError.new('First parameter - authorization header, should be a String')
  end

  unless body.is_a?(String)
    raise Monri::Errors::InvalidArgumentsError.new('Second parameter - body, should be a String')
  end

  unless options.is_a?(Hash)
    raise Monri::Errors::InvalidArgumentsError.new('Third parameter - options, should be a Hash')
  end

  version = options.delete(:version) || '2'

  if version == 'v2'
    expected_digest = Digest::SHA512.hexdigest("#{config.merchant_key}#{body}")
  elsif version == '1'
    unless options.has_key?(:order_number)
      raise Monri::Errors::InvalidArgumentsError.new('For version=1 provide order-number')
    end
    order_number = options.delete(:order_number)
    expected_digest = Digest::SHA1.hexdigest("#{config.merchant_key}#{order_number}")
  else
    raise Monri::Errors::InvalidArgumentsError.new("Version option, value='#{version}' is not supported")
  end

  expected_header = "WP3-callback #{expected_digest}"
  {
    header: header,
    expected_header: expected_header,
    valid: header == expected_header
  }
end