Class: Challah::Random

Inherits:
Object
  • Object
show all
Defined in:
lib/challah/random.rb

Overview

Random string class, uses ActiveSupport’s SecureRandom if possible, otherwise gives a fairly secure random string

Class Method Summary collapse

Class Method Details

.secure_random? ⇒ Boolean

Is ActiveSupport::SecureRandom available. If so, we’ll use it.

Returns:

  • (Boolean) 


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# File 'lib/challah/random.rb', line 14

def self.secure_random?
  defined?(::SecureRandom)
end

.token(length = 30) ⇒ Object

Returns a random string for use as a token at the given length.



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# File 'lib/challah/random.rb', line 6

def self.token(length = 30)
  return SecureRandom.hex(length/2) if secure_random?

  c = [(0..9),('a'..'z'),('A'..'Z')].map {|i| i.to_a }.flatten
  (1..length).map{ c[rand(c.length)] }.join
end