我正在尝试关注此博客文章以允许使用设计进行远程身份验证，但我无法弄清楚一些事情。
我怎么称呼我的新文件，我把它们放在哪里？
第一个，Devise::Models::RemoteAuthenticatable我假设我调用 remote_authenticatable.rb 并放入我的模型文件夹中的设计文件夹？
第二个文件，“Warden strategy for Devise”我不知道该叫什么，也不知道该放在哪里。
有任何想法吗？我发现教程很不完整。它链接到设计说明中作为执行此操作的方式。
编辑：
我一直在做更多的阅读，我不确定我是否需要按照该博客文章中所说的去做。我一直在尝试将数据简单地放入我的 Rails 应用程序，但无法正常工作。执行 PUT 请求会导致设计松散身份验证。
我知道这个问题已有多年历史，但我也发现教程不完整，最近我花了几天时间尝试让远程身份验证工作。因此，我将提供我的解决方案，以防将来对某人有所帮助。我正在使用 Ruby 2.2.2 和 Rails 4.2.5.1。
首先，这个要点对我来说是一个非常有用的参考。
我还使用 gemfakeweb来模拟 API 调用。
这是我的文件的样子：
class User < include ActiveModel::Model
# required because some before_validations are defined in devise
include ActiveModel::Validations
# required to define callbacks
extend ActiveModel::Callbacks
# taken from http://stackoverflow.com/questions/8936906/whats-the-correct-way-to-make-before-validation-etc-work-in-an-activemodel
include ActiveModel::Validations::Callbacks
extend Devise::Models
# create getter and setter methods internally for the fields below
attr_accessor :email, :auth_token
#required by Devise
define_model_callbacks :validation
devise :remote_authenticatable, :timeoutable
# Latest devise tries to initialize this class with values
# ignore it for now
def initialize(options={})
end
end
require 'fakeweb' #used for mocking API calls
module Devise
module Models
module RemoteAuthenticatable
extend ActiveSupport::Concern
#
# Here you do the request to the external webservice
#
# If the authentication is successful you should return
# a resource instance
#
# If the authentication fails you should return false
#
def remote_authentication(authentication_hash)
FakeWeb.register_uri(:get, "http://localhost:3000/webservice/login.json",
:body => "{ \"success\": \"true\", \"auth_token\": \"secure_token_123\", \"email\": \"bob@1123.com\"}")
# Your logic to authenticate with the external webservice
response = Net::HTTP.get(URI.parse("http://localhost:3000/webservice/login.json"))
self.email = JSON.parse(response)["email"]
self.auth_token = JSON.parse(response)["auth_token"]
return self
end
module ClassMethods
####################################
# Overriden methods from Devise::Models::Authenticatable
####################################
#
# This method is called from:
# Warden::SessionSerializer in devise
#
# It takes as many params as elements had the array
# returned in serialize_into_session
#
# Recreates a resource from session data
#
def serialize_from_session(data, salt)
resource = self.new
resource.email = data['email']
resource.auth_token = data['auth_token']
resource
end
#
# Here you have to return and array with the data of your resource
# that you want to serialize into the session
#
# You might want to include some authentication data
#
def serialize_into_session(record)
[
{
:email => record.email,
:auth_token => record.auth_token
},
nil
]
end
end
end
end
end
module Devise
module Strategies
class RemoteAuthenticatable < Authenticatable
#
# For an example check : https://github.com/plataformatec/devise/blob/master/lib/devise/strategies/database_authenticatable.rb
#
# Method called by warden to authenticate a resource.
#
def authenticate!
#
# authentication_hash doesn't include the password
#
auth_params = authentication_hash
auth_params[:password] = password
#
# mapping.to is a wrapper over the resource model
#
resource = mapping.to.new
return fail! unless resource
# remote_authentication method is defined in Devise::Models::RemoteAuthenticatable
#
# validate is a method defined in Devise::Strategies::Authenticatable. It takes
#a block which must return a boolean value.
#
# If the block returns true the resource will be logged in
# If the block returns false the authentication will fail!
#
# resource = resource.remote_authentication(auth_params)
if validate(resource){ resource = resource.remote_authentication(auth_params) }
success!(resource)
end
end
end
end
end
Devise.setup do |config|
# ...
# ...
# OTHER CONFIGURATION CODE HERE
# ...
# ...
# ==> Warden configuration
# If you want to use other strategies, that are not supported by Devise, or
# change the failure app, you can configure them inside the config.warden block.
#
# config.warden do |manager|
# manager.intercept_401 = false
# manager.default_strategies(scope: :user).unshift :some_external_strategy
# end
# BEGIN code that was added to this file
config.warden do |manager|
manager.strategies.add(:remote_authenticatable, Devise::Strategies::RemoteAuthenticatable)
manager.default_strategies(:scope => :user).unshift :remote_authenticatable
end
Devise.add_module :remote_authenticatable, :controller => :sessions, :route => { :session => :routes }
# END code that was added to this file
# ...
# ...
# OTHER CONFIGURATION CODE HERE
# ...
# ...
end
# ...
# ...
# OTHER CODE HERE
# ...
# ...
module RemoteAuth
class Application < Rails::Application
# ...
# OTHER CODE HERE
# ...
# BEGIN code that was added to this file
config.autoload_paths += Dir["#{config.root}/lib/**/"]
config.autoload_paths += Dir["#{config.root}/app/models/**/"]
# END code that was added to this file
end
end
本要点向您展示了如何做到这一点。还有一些额外的步骤，比如:token_authenticatable在你的用户模型中激活模块，以及config/devise.rb