class Rack::Session::Cookie
def initialize(app, options = {})
def initialize(app, options = {}) # support both :secrets and :secret for backwards compatibility secrets = [*(options[:secrets] || options[:secret])] encryptor_opts = { purpose: options[:key], serialize_json: options[:serialize_json] } # For each secret, create an Encryptor. We have iterate this Array at # decryption time to achieve key rotation. @encryptors = secrets.map do |secret| Rack::Session::Encryptor.new secret, encryptor_opts end # If a legacy HMAC secret is present, initialize those features. # Fallback to :secret for backwards compatibility. if options.has_key?(:legacy_hmac_secret) || options.has_key?(:secret) @legacy_hmac = options.fetch(:legacy_hmac, 'SHA1') @legacy_hmac_secret = options[:legacy_hmac_secret] || options[:secret] @legacy_hmac_coder = options.fetch(:legacy_hmac_coder, Base64::Marshal.new) else @legacy_hmac = false end warn <<-MSG unless secure?(options) SECURITY WARNING: No secret option provided to Rack::Session::Cookie. This poses a security threat. It is strongly recommended that you provide a secret to prevent exploits that may be possible from crafted cookies. This will not be supported in future versions of Rack, and future versions will even invalidate your existing user cookies. Called from: #{caller[0]}. MSG # Potential danger ahead! Marshal without verification and/or # encryption could present a major security issue. @coder = options[:coder] ||= Base64::Marshal.new super(app, options.merge!(cookie_only: true)) end