Sha256: 0c5fafd5f2dee222c53e00c04bef86e3f128ba926a13a0b616c164171e661360
Contents?: true
Size: 1.2 KB
Versions: 114
Compression:
Stored size: 1.2 KB
Contents
require 'securerandom'
module Tins
class Token < String
DEFAULT_ALPHABET =
"0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ".freeze
BASE64_ALPHABET =
"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/".freeze
BASE64_URL_FILENAME_SAFE_ALPHABET =
"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-_".freeze
BASE32_ALPHABET = "ABCDEFGHIJKLMNOPQRSTUVWXYZ234567".freeze
BASE32_EXTENDED_HEX_ALPHABET = "0123456789ABCDEFGHIJKLMNOPQRSTUV".freeze
BASE16_ALPHABET = "0123456789ABCDEF".freeze
def initialize(bits: 128, length: nil, alphabet: DEFAULT_ALPHABET, random: SecureRandom)
alphabet.size > 1 or raise ArgumentError, 'need at least 2 symbols in alphabet'
if length
length > 0 or raise ArgumentError, 'length has to be positive'
else
bits > 0 or raise ArgumentError, 'bits has to be positive'
length = (Math.log(1 << bits) / Math.log(alphabet.size)).ceil
end
self.bits = (Math.log(alphabet.size ** length) / Math.log(2)).floor
token = ''
length.times { token << alphabet[random.random_number(alphabet.size)] }
super token
end
attr_accessor :bits
end
end
Version data entries
114 entries across 100 versions & 8 rubygems