class Challah::Random
Random
string class, uses ActiveSupport's SecureRandom if possible, otherwise gives a fairly secure random string
Public Class Methods
secure_random?()
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Is ActiveSupport::SecureRandom available. If so, we'll use it.
# File lib/challah/random.rb, line 14 def self.secure_random? defined?(::SecureRandom) end
token(length = 30)
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Returns a random string for use as a token at the given length.
# 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