1
# -*- coding: binary -*-
2

3
module Msf
4
  # Boolean option type
5
  class OptBool < OptBase
6
    TRUE_REGEX = /^(y|yes|t|1|true)$/i
7
    ANY_REGEX = /^(y|yes|n|no|t|f|0|1|true|false)$/i
8

9
    # This overrides default from 'nil' to 'false'
10
    def initialize(in_name, attrs = [],
11
                   default: false, **kwargs)
12
      super
13
    end
14

15
    def type
16
      return 'bool'
17
    end
18

19
    def valid?(value, check_empty: true, datastore: nil)
20
      return false if check_empty && empty_required_value?(value)
21
      return true if value.nil? && !required?
22

23
      !(value.nil? ||
24
        value.to_s.empty? ||
25
        value.to_s.match(ANY_REGEX).nil?)
26
    end
27

28
    def normalize(value)
29
      !(value.nil? ||
30
        value.to_s.match(TRUE_REGEX).nil?)
31
    end
32
  end
33
end
34

35