Module: Hestia::SignedCookieJarExtension::ActionPack4

Defined in:
lib/hestia/signed_cookie_jar_extension/action_pack_4.rb

Instance Method Summary collapse

Instance Method Details

#initialize(parent_jar, key_generator, options = {}) ⇒ Object

Public: overridden #initialize method

In rails, ‘secrets’ will be given the value of ‘Rails.application.config.secret_token’. That’s the current secret token. This also reads from ‘Rails.application.config.deprecated_secret_token` for deprecated token(s) to use. It can be undefined, a string or an array of string.

parent_jar [ActionDispatch::Cookies] the parent jar creating this signed cookie jar secret [String] current secret token. Used to verify & sign cookies.



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# File 'lib/hestia/signed_cookie_jar_extension/action_pack_4.rb', line 13

def initialize(parent_jar, key_generator, options = {})
  super

  # Find the deprecated secrets, if there are any
  deprecated_secrets = if Rails.application.config.respond_to?(:deprecated_secret_token)
    # This could be a single string!
    Array(Rails.application.config.deprecated_secret_token)
  else
    []
  end

  # Grab the `config.secret_token` value from its generator
  active_secret = key_generator.generate_key(@options[:signed_cookie_salt])

  # Take the deprecated secrets through the same generator code
  deprecated_secrets.map do |secret|
    ActiveSupport::LegacyKeyGenerator.new(secret).generate_key(@options[:signed_cookie_salt])
  end

  # Finally, override @verifier with our own multi verifier containing all the secrets
  @verifier = Hestia::MessageMultiVerifier.new(current_secret: active_secret, deprecated_secrets: deprecated_secrets)
end