Gecko [ naturenectar.co.uk ]

Name	Size	Permission	Date
benchmark	[ DIR ]	drwxr-xr-x	2025-08-15 19:34
bigdecimal	[ DIR ]	drwxr-xr-x	2025-08-15 19:34
cgi	[ DIR ]	drwxr-xr-x	2025-08-15 19:34
csv	[ DIR ]	drwxr-xr-x	2025-08-15 19:34
did_you_mean	[ DIR ]	drwxr-xr-x	2025-08-15 19:34
digest	[ DIR ]	drwxr-xr-x	2025-08-15 19:34
drb	[ DIR ]	drwxr-xr-x	2025-08-15 19:34
erb	[ DIR ]	drwxr-xr-x	2025-08-15 19:34
error_highlight	[ DIR ]	drwxr-xr-x	2025-08-15 19:34
fiddle	[ DIR ]	drwxr-xr-x	2025-08-15 19:34
forwardable	[ DIR ]	drwxr-xr-x	2025-08-15 19:34
io	[ DIR ]	drwxr-xr-x	2025-08-15 19:34
json	[ DIR ]	drwxr-xr-x	2025-08-15 19:34
logger	[ DIR ]	drwxr-xr-x	2025-08-15 19:34
net	[ DIR ]	drwxr-xr-x	2025-08-15 19:34
objspace	[ DIR ]	drwxr-xr-x	2025-08-15 19:34
open3	[ DIR ]	drwxr-xr-x	2025-08-15 19:34
openssl	[ DIR ]	drwxr-xr-x	2025-08-15 19:34
optparse	[ DIR ]	drwxr-xr-x	2025-08-15 19:34
psych	[ DIR ]	drwxr-xr-x	2025-08-15 19:34
racc	[ DIR ]	drwxr-xr-x	2025-08-15 19:34
random	[ DIR ]	drwxr-xr-x	2025-08-15 19:34
reline	[ DIR ]	drwxr-xr-x	2025-08-15 19:34
rinda	[ DIR ]	drwxr-xr-x	2025-08-15 19:34
ripper	[ DIR ]	drwxr-xr-x	2025-08-15 19:34
ruby_vm	[ DIR ]	drwxr-xr-x	2025-08-15 19:34
set	[ DIR ]	drwxr-xr-x	2025-08-15 19:34
syntax_suggest	[ DIR ]	drwxr-xr-x	2025-08-15 19:34
syslog	[ DIR ]	drwxr-xr-x	2025-08-15 19:34
unicode_normalize	[ DIR ]	drwxr-xr-x	2025-08-15 19:34
uri	[ DIR ]	drwxr-xr-x	2025-08-15 19:34
vendor_ruby	[ DIR ]	drwxr-xr-x	2025-04-24 08:11
yaml	[ DIR ]	drwxr-xr-x	2025-08-15 19:34
English.rb	6.11 KB	-rw-r--r--	2025-04-24 08:11
abbrev.rb	3.45 KB	-rw-r--r--	2025-04-24 08:11
base64.rb	3.35 KB	-rw-r--r--	2025-04-24 08:11
benchmark.rb	18.4 KB	-rw-r--r--	2025-04-24 08:11
bigdecimal.rb	24 B	-rw-r--r--	2025-04-24 08:11
cgi.rb	9.83 KB	-rw-r--r--	2025-04-24 08:11
coverage.rb	368 B	-rw-r--r--	2025-04-24 08:11
csv.rb	92.47 KB	-rw-r--r--	2025-04-24 08:11
date.rb	1.17 KB	-rw-r--r--	2025-04-24 08:11
delegate.rb	11.68 KB	-rw-r--r--	2025-04-24 08:11
did_you_mean.rb	5.31 KB	-rw-r--r--	2025-04-24 08:11
digest.rb	3.3 KB	-rw-r--r--	2025-04-24 08:11
drb.rb	50 B	-rw-r--r--	2025-04-24 08:11
erb.rb	14.57 KB	-rw-r--r--	2025-04-24 08:11
error_highlight.rb	84 B	-rw-r--r--	2025-04-24 08:11
expect.rb	2.19 KB	-rw-r--r--	2025-04-24 08:11
fiddle.rb	2.88 KB	-rw-r--r--	2025-04-24 08:11
fileutils.rb	79.02 KB	-rw-r--r--	2025-04-24 08:11
find.rb	2.5 KB	-rw-r--r--	2025-04-24 08:11
forwardable.rb	9.03 KB	-rw-r--r--	2025-04-24 08:11
getoptlong.rb	20.26 KB	-rw-r--r--	2025-04-24 08:11
ipaddr.rb	20.6 KB	-rw-r--r--	2025-04-24 08:11
json.rb	19.29 KB	-rw-r--r--	2025-04-24 08:11
kconv.rb	5.72 KB	-rw-r--r--	2025-04-24 08:11
logger.rb	21.95 KB	-rw-r--r--	2025-04-24 08:11
mkmf.rb	88.4 KB	-rw-r--r--	2025-04-24 08:11
monitor.rb	6.76 KB	-rw-r--r--	2025-04-24 08:11
mutex_m.rb	2.33 KB	-rw-r--r--	2025-04-24 08:11
objspace.rb	4.67 KB	-rw-r--r--	2025-04-24 08:11
observer.rb	6.38 KB	-rw-r--r--	2025-04-24 08:11
open-uri.rb	25.52 KB	-rw-r--r--	2025-04-24 08:11
open3.rb	22.11 KB	-rw-r--r--	2025-04-24 08:11
openssl.rb	1.03 KB	-rw-r--r--	2025-04-24 08:11
optionparser.rb	59 B	-rw-r--r--	2025-04-24 08:11
optparse.rb	61.06 KB	-rw-r--r--	2025-04-24 08:11
ostruct.rb	13.88 KB	-rw-r--r--	2025-04-24 08:11
pathname.rb	16.83 KB	-rw-r--r--	2025-04-24 08:11
pp.rb	17.22 KB	-rw-r--r--	2025-04-24 08:11
prettyprint.rb	15.9 KB	-rw-r--r--	2025-04-24 08:11
pstore.rb	20.52 KB	-rw-r--r--	2025-04-24 08:11
psych.rb	24.62 KB	-rw-r--r--	2025-04-24 08:11
racc.rb	137 B	-rw-r--r--	2025-04-24 08:11
readline.rb	189 B	-rw-r--r--	2025-04-24 08:11
reline.rb	17.75 KB	-rw-r--r--	2025-04-24 08:11
resolv-replace.rb	1.76 KB	-rw-r--r--	2025-04-24 08:11
resolv.rb	74.19 KB	-rw-r--r--	2025-04-24 08:11
ripper.rb	2.44 KB	-rw-r--r--	2025-04-24 08:11
securerandom.rb	2.11 KB	-rw-r--r--	2025-04-24 08:11
set.rb	25.31 KB	-rw-r--r--	2025-04-24 08:11
shellwords.rb	7.09 KB	-rw-r--r--	2025-04-24 08:11
singleton.rb	4.08 KB	-rw-r--r--	2025-04-24 08:11
socket.rb	43.72 KB	-rw-r--r--	2025-04-24 08:11
syntax_suggest.rb	74 B	-rw-r--r--	2025-04-24 08:11
tempfile.rb	13.84 KB	-rw-r--r--	2025-04-24 08:11
time.rb	23.72 KB	-rw-r--r--	2025-04-24 08:11
timeout.rb	5.83 KB	-rw-r--r--	2025-04-24 08:11
tmpdir.rb	4.7 KB	-rw-r--r--	2025-04-24 08:11
tsort.rb	14.26 KB	-rw-r--r--	2025-04-24 08:11
un.rb	11.17 KB	-rw-r--r--	2025-04-24 08:11
uri.rb	3.06 KB	-rw-r--r--	2025-04-24 08:11
weakref.rb	1.36 KB	-rw-r--r--	2025-04-24 08:11
yaml.rb	2.11 KB	-rw-r--r--	2025-04-24 08:11

Rename

# frozen_string_literal: true
#
# = base64.rb: methods for base64-encoding and -decoding strings
#

# The Base64 module provides for the encoding (#encode64, #strict_encode64,
# #urlsafe_encode64) and decoding (#decode64, #strict_decode64,
# #urlsafe_decode64) of binary data using a Base64 representation.
#
# == Example
#
# A simple encoding and decoding.
#
#     require "base64"
#
#     enc   = Base64.encode64('Send reinforcements')
#                         # -> "U2VuZCByZWluZm9yY2VtZW50cw==\n"
#     plain = Base64.decode64(enc)
#                         # -> "Send reinforcements"
#
# The purpose of using base64 to encode data is that it translates any
# binary data into purely printable characters.

module Base64
  module_function

# Returns the Base64-encoded version of +bin+.
  # This method complies with RFC 2045.
  # Line feeds are added to every 60 encoded characters.
  #
  #    require 'base64'
  #    Base64.encode64("Now is the time for all good coders\nto learn Ruby")
  #
  # <i>Generates:</i>
  #
  #    Tm93IGlzIHRoZSB0aW1lIGZvciBhbGwgZ29vZCBjb2RlcnMKdG8gbGVhcm4g
  #    UnVieQ==
  def encode64(bin)
    [bin].pack("m")
  end

# Returns the Base64-decoded version of +str+.
  # This method complies with RFC 2045.
  # Characters outside the base alphabet are ignored.
  #
  #   require 'base64'
  #   str = 'VGhpcyBpcyBsaW5lIG9uZQpUaGlzIG' +
  #         'lzIGxpbmUgdHdvClRoaXMgaXMgbGlu' +
  #         'ZSB0aHJlZQpBbmQgc28gb24uLi4K'
  #   puts Base64.decode64(str)
  #
  # <i>Generates:</i>
  #
  #    This is line one
  #    This is line two
  #    This is line three
  #    And so on...
  def decode64(str)
    str.unpack1("m")
  end

# Returns the Base64-encoded version of +bin+.
  # This method complies with RFC 4648.
  # No line feeds are added.
  def strict_encode64(bin)
    [bin].pack("m0")
  end

# Returns the Base64-decoded version of +str+.
  # This method complies with RFC 4648.
  # ArgumentError is raised if +str+ is incorrectly padded or contains
  # non-alphabet characters.  Note that CR or LF are also rejected.
  def strict_decode64(str)
    str.unpack1("m0")
  end

# Returns the Base64-encoded version of +bin+.
  # This method complies with ``Base 64 Encoding with URL and Filename Safe
  # Alphabet'' in RFC 4648.
  # The alphabet uses '-' instead of '+' and '_' instead of '/'.
  # Note that the result can still contain '='.
  # You can remove the padding by setting +padding+ as false.
  def urlsafe_encode64(bin, padding: true)
    str = strict_encode64(bin)
    str.chomp!("==") or str.chomp!("=") unless padding
    str.tr!("+/", "-_")
    str
  end

# Returns the Base64-decoded version of +str+.
  # This method complies with ``Base 64 Encoding with URL and Filename Safe
  # Alphabet'' in RFC 4648.
  # The alphabet uses '-' instead of '+' and '_' instead of '/'.
  #
  # The padding character is optional.
  # This method accepts both correctly-padded and unpadded input.
  # Note that it still rejects incorrectly-padded input.
  def urlsafe_decode64(str)
    # NOTE: RFC 4648 does say nothing about unpadded input, but says that
    # "the excess pad characters MAY also be ignored", so it is inferred that
    # unpadded input is also acceptable.
    if !str.end_with?("=") && str.length % 4 != 0
      str = str.ljust((str.length + 3) & ~3, "=")
      str.tr!("-_", "+/")
    else
      str = str.tr("-_", "+/")
    end
    strict_decode64(str)
  end
end