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rails--rails/activesupport/lib/active_support/base64.rb
Jeremy Kemper a4e3aac40a * Introduce ActiveSupport.core_ext Integer, %w(conversions time etc)
* Convert some extension modules to simply reopening the class
* Remove deprecated Float time extensions
* Fold Base64 extension into ActiveSupport::Base64 since stdlib Base64 is gone
2009-03-21 04:35:15 -07:00

42 lines
1.4 KiB
Ruby

begin
require 'base64'
rescue LoadError
end
module ActiveSupport
if defined? ::Base64
Base64 = ::Base64
else
# Base64 provides utility methods for encoding and de-coding binary data
# using a base 64 representation. A base 64 representation of binary data
# consists entirely of printable US-ASCII characters. The Base64 module
# is included in Ruby 1.8, but has been removed in Ruby 1.9.
module Base64
# Encodes a string to its base 64 representation. Each 60 characters of
# output is separated by a newline character.
#
# ActiveSupport::Base64.encode64("Original unencoded string")
# # => "T3JpZ2luYWwgdW5lbmNvZGVkIHN0cmluZw==\n"
def self.encode64(data)
[data].pack("m")
end
# Decodes a base 64 encoded string to its original representation.
#
# ActiveSupport::Base64.decode64("T3JpZ2luYWwgdW5lbmNvZGVkIHN0cmluZw==")
# # => "Original unencoded string"
def self.decode64(data)
data.unpack("m").first
end
end
end
# Encodes the value as base64 without the newline breaks. This makes the base64 encoding readily usable as URL parameters
# or memcache keys without further processing.
#
# ActiveSupport::Base64.encode64s("Original unencoded string")
# # => "T3JpZ2luYWwgdW5lbmNvZGVkIHN0cmluZw=="
def Base64.encode64s(value)
encode64(value).gsub(/\n/, '')
end
end