如何删除devise authenticate_user中的html重定向 [英] How to remove html redirection in devise authenticate_user
问题描述
我使用devise的authenticate_user！方法在控制器中。当请求中提供的auth_token是正确的，但如果身份验证失败，我最终会出现以下情况：
I use the devise's authenticate_user! method in a controller. This is working fine when the auth_token provided in the request is the correct one but if the authentication fails, I end up with:
curl -XGET 'http://localhost:3000/my_obj?auth_token=wrongtoken'
<html><body>You are being <a href="http://localhost:3000/users/sign_in">redirected</a>.</body></html>
当我使用rabl，最好的方法是使用
As I use rabl, what is the best way to have something like
{'error' : 'authentication error'}
返回的html重定向的整数？
returned intead of the html redirection ?
推荐答案
我这样做避免过滤器：format = ：json响应，并且做自己的过滤器来渲染我的JSON响应，如果没有current_user通过
I do that in avoid the filter with :format => :json response and do my own filter to render my JSON response if no current_user pass
class MyController < ApplicationController
before_filter :authenticate_user!, :unless => { request.format == :json }
before_filter :user_needed, :if => { request.format == :json }
def user_needed
unless current_user
render :json => {'error' => 'authentication error'}, :status => 401
end
end
end
另一种方法可以更清洁的是定义您自己的FailureApp（ https://github.com/plataformatec/devise /blob/master/lib/devise/failure_app.rb ）
An other way, can be cleaner is to define your own FailureApp ( https://github.com/plataformatec/devise/blob/master/lib/devise/failure_app.rb )
class MyFailureApp < Devise::FailureApp
def respond
if request.format == :json
json_failure
else
super
end
end
def json_failure
self.status = 401
self.content_type = 'application/json'
self.response_body = "{'error' : 'authentication error'}"
end
end
在您的Devise配置文件中添加：
In your Devise config file add :
config.warden do |manager|
manager.failure_app = MyFailureApp
end
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