用于设计的自定义身份验证策略 [英] Custom authentication strategy for devise

问题描述

I need to write a custom authentication strategy for https://github.com/plataformatec/devise but there doesn't seem to be any docs. How's it done?

解决方案

I found this very helpful snippet in this thread on the devise google group

initializers/some_initializer.rb:

Warden::Strategies.add(:custom_strategy_name) do 
  def valid? 
    # code here to check whether to try and authenticate using this strategy; 
    return true/false 
  end 

  def authenticate! 
    # code here for doing authentication; 
    # if successful, call  
    success!(resource) # where resource is the whatever you've authenticated, e.g. user;
    # if fail, call 
    fail!(message) # where message is the failure message 
  end 
end 

add following to initializers/devise.rb

  config.warden do |manager| 
     manager.default_strategies.unshift :custom_strategy_name 
  end 

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