我正在尝试关注this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。
我将新文件称为什么，我将它放在哪里？
第一个，Devise::Models::RemoteAuthenticatable我假设我调用remote_authenticatable.rb并在我的模型文件夹中放入一个devise文件夹？
第二个文件，“设计的Warden策略”我不知道该怎么称呼它，或者把它放在哪里。
有什么想法吗？我发现教程很不完整。它与Devise指令相关联，作为执行此操作的方式。
编辑：
我一直在做更多的阅读，而且我不确定我是否需要按照博客文章的说法去做。我一直试图简单地将数据PUT到我的Rails应用程序，但无法获得任何工作。执行PUT请求会导致失去身份验证。
答案 0 :(得分：3)
我知道这个问题已经有好几年了，但我发现这个教程还不完整，我最近花了几天时间试图让远程身份验证工作。所以我会提供我的解决方案，以防将来帮助某人。我使用的是Ruby 2.2.2和Rails 4.2.5.1。
首先，这个gist对我来说是非常有用的参考。
我还使用gem fakeweb来模拟API调用。
以下是我的文件：
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
答案 1 :(得分：0)
This Gist向您展示了如何做到这一点。还有一些额外的步骤，例如激活用户模型中的:token_authenticatable模块，以及config/devise.rb