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Versions: 8
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Contents
require 'active_support/concern'
require 'simple_token_authentication/token_generator'
module SimpleTokenAuthentication
module ActsAsTokenAuthenticatable
extend ::ActiveSupport::Concern
# Please see https://gist.github.com/josevalim/fb706b1e933ef01e4fb6
# before editing this file, the discussion is very interesting.
included do
private :generate_authentication_token
private :token_suitable?
private :token_generator
end
# Set an authentication token if missing
#
# Because it is intended to be used as a filter,
# this method is -and should be kept- idempotent.
def ensure_authentication_token
if authentication_token.blank?
self.authentication_token = generate_authentication_token(token_generator)
end
end
def generate_authentication_token(token_generator)
loop do
token = token_generator.generate_token
break token if token_suitable?(token)
end
end
def token_suitable?(token)
self.class.where(authentication_token: token).count == 0
end
# Private: Get one (always the same) object which behaves as a token generator
def token_generator
@token_generator ||= TokenGenerator.new
end
module ClassMethods
def acts_as_token_authenticatable(options = {})
before_save :ensure_authentication_token
end
end
end
end
Version data entries
8 entries across 8 versions & 2 rubygems