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Contents
require 'openssl'
require 'base64'
require 'hashie/mash'
module Chamber
module Filters
class EncryptionFilter
SECURE_KEY_TOKEN = %r{\A_secure_}
BASE64_STRING_PATTERN = %r{\A[A-Za-z0-9\+\/]{342}==\z}
def initialize(options = {})
self.encryption_key = options.fetch(:encryption_key, nil)
self.data = options.fetch(:data).dup
end
def self.execute(options = {})
self.new(options).send(:execute)
end
protected
attr_accessor :data
attr_reader :encryption_key
def execute(raw_data = data)
settings = Hashie::Mash.new
raw_data.each_pair do |key, value|
if value.respond_to? :each_pair
value = execute(value)
elsif value.respond_to? :match
if key.match(SECURE_KEY_TOKEN) && !value.match(BASE64_STRING_PATTERN)
encrypted_string = encryption_key.public_encrypt(value)
value = Base64.strict_encode64(encrypted_string)
end
end
settings[key] = value
end
settings
end
def encryption_key=(keyish)
return @encryption_key = nil if keyish.nil?
key_content = if ::File.readable?(::File.expand_path(keyish))
::File.read(::File.expand_path(keyish))
else
keyish
end
@encryption_key = OpenSSL::PKey::RSA.new(key_content)
end
end
end
end
Version data entries
15 entries across 15 versions & 1 rubygems