Class: Memorandom::Plugins::CC

Inherits:
Memorandom::PluginTemplate show all
Defined in:
lib/memorandom/plugins/cc.rb

Constant Summary collapse

@@description = 
"This plugin looks for credit card numbers"
@@confidence = 
0.10

Instance Attribute Summary

Attributes inherited from Memorandom::PluginTemplate

#hits, #scanner

Instance Method Summary collapse

Methods inherited from Memorandom::PluginTemplate

#confidence, confidence, #description, description, #initialize, #report_hit, #reset

Constructor Details

This class inherits a constructor from Memorandom::PluginTemplate

Instance Method Details

#scan(buffer, source_offset) ⇒ Object

Scan takes a buffer and an offset of where this buffer starts in the source



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# File 'lib/memorandom/plugins/cc.rb', line 12

def scan(buffer, source_offset)

  buffer.scan(
    # Look for credit card numbers in various formats
    /(?:^|\D)([\d \-]{12,32})(?:$|\D)/
  ).each do |m|
    matched = m.first

    # This may hit an earlier identical match, but thats ok
    last_offset = buffer.index(matched)
    next unless last_offset

    # Clean out any non-digits and validate the card
    cleaned = matched.gsub(/[^\d]+/, '')
    next unless CreditCardValidator::Validator.valid?(cleaned)
    cc_type = CreditCardValidator::Validator.card_type(cleaned)
    cc_type = cc_type.split('_').map{|x| x.capitalize }.join

    report_hit(:type => "CreditCard(#{cc_type})", :data => cleaned, :offset => source_offset + last_offset)
  end
end