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# Please note: This function is an implementation of a Ruby class and as such may not be entirely UTF8 compatible. To ensure compatibility please use this function with Ruby 2.4.0 or greater - https://bugs.ruby-lang.org/issues/10085.
module Puppet::Parser::Functions
newfunction(:base64, :type => :rvalue, :doc => <<-'ENDHEREDOC') do |args|
Base64 encode or decode a string based on the command and the string submitted
Usage:
$encodestring = base64('encode', 'thestring')
$decodestring = base64('decode', 'dGhlc3RyaW5n')
# explicitly define encode/decode method: default, strict, urlsafe
$method = 'default'
$encodestring = base64('encode', 'thestring', $method)
$decodestring = base64('decode', 'dGhlc3RyaW5n', $method)
ENDHEREDOC
require 'base64'
raise Puppet::ParseError, ("base64(): Wrong number of arguments (#{args.length}; must be >= 2)") unless args.length >= 2
actions = ['encode','decode']
unless actions.include?(args[0])
raise Puppet::ParseError, ("base64(): the first argument must be one of 'encode' or 'decode'")
end
unless args[1].is_a?(String)
raise Puppet::ParseError, ("base64(): the second argument must be a string to base64")
end
method = ['default','strict','urlsafe']
if args.length <= 2
chosenMethod = 'default'
else
chosenMethod = args[2]
end
unless method.include?(chosenMethod)
raise Puppet::ParseError, ("base64(): the third argument must be one of 'default', 'strict', or 'urlsafe'")
end
case args[0]
when 'encode'
case chosenMethod
when 'default'
result = Base64.encode64(args[1])
when 'strict'
result = Base64.strict_encode64(args[1])
when 'urlsafe'
result = Base64.urlsafe_encode64(args[1])
end
when 'decode'
case chosenMethod
when 'default'
result = Base64.decode64(args[1])
when 'strict'
result = Base64.strict_decode64(args[1])
when 'urlsafe'
result = Base64.urlsafe_decode64(args[1])
end
end
return result
end
end
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