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# frozen_string_literal: true
module TokenAuthenticatable
extend ActiveSupport::Concern
class_methods do
def encrypted_token_authenticatable_fields
@encrypted_token_authenticatable_fields ||= []
end
private
def add_authentication_token_field(token_field, options = {})
if token_authenticatable_fields.include?(token_field)
raise ArgumentError.new("#{token_field} already configured via add_authentication_token_field")
end
token_authenticatable_fields.push(token_field)
encrypted_token_authenticatable_fields.push(token_field) if options[:encrypted]
attr_accessor :cleartext_tokens
strategy = TokenAuthenticatableStrategies::Base
.fabricate(self, token_field, options)
if options.fetch(:unique, true)
define_singleton_method("find_by_#{token_field}") do |token|
strategy.find_token_authenticatable(token)
end
end
mod = token_authenticatable_module
mod.define_method(token_field) do
strategy.get_token(self)
end
mod.define_method("set_#{token_field}") do |token|
strategy.set_token(self, token)
end
mod.define_method("ensure_#{token_field}") do
strategy.ensure_token(self)
end
# Returns a token, but only saves when the database is in read & write mode
mod.define_method("ensure_#{token_field}!") do
strategy.ensure_token!(self)
end
# Resets the token, but only saves when the database is in read & write mode
mod.define_method("reset_#{token_field}!") do
strategy.reset_token!(self)
end
mod.define_method("#{token_field}_matches?") do |other_token|
token = read_attribute(token_field)
token.present? && ActiveSupport::SecurityUtils.secure_compare(other_token, token)
end
# Base strategy delegates to this method for formatting a token before
# calling set_token. Can be overridden in models to e.g. add a prefix
# to the tokens
mod.define_method("format_#{token_field}") do |token|
token
end
end
def token_authenticatable_module
@token_authenticatable_module ||=
const_set(:TokenAuthenticatable, Module.new).tap(&method(:include))
end
def token_authenticatable_fields
@token_authenticatable_fields ||= []
end
end
end
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