Class: Principal

Inherits:
Object
  • Object
show all
Defined in:
lib/cfn-model/model/principal.rb

Class Method Summary collapse

Class Method Details

.wildcard?(principal) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/cfn-model/model/principal.rb', line 4

def self.wildcard?(principal)
  if principal.is_a? String
    return has_asterisk principal
  elsif principal.is_a? Hash
    # if new principal types arrive, let's not tie ourselves down - the * is still likely the thing to look for
    # unless %w(AWS FederatedUser CanonicalUser Service).include?(principal.keys.first)
    #   raise "whacky principal key: #{principal}"
    # end

    has_wildcard = false
    principal.values.each do |principal_value|
      if principal_value.is_a? String
        has_wildcard ||= has_asterisk principal_value
      elsif principal_value.is_a? Array
        wildcard_principal = principal_value.find do |principal_iter|
          if principal_iter.is_a? String
            principal_iter =~ /\*/
          else # could be Hash Ref/GetAtt
            false
          end
        end
        has_wildcard ||= !wildcard_principal.nil?
      end
    end
    has_wildcard
  elsif principal.nil?
    false
  else
    # array? not legal?
    raise "whacky principal not string or hash: #{principal}"
  end
end