OmniAuth不适用于Rails3中的Route Globbing [英] OmniAuth doesn't work with Route Globbing in Rails3

问题描述

我正在尝试遵循Railscast 241 简单的OmniAuth ，除非我能正常工作/config/routes.rb的末尾具有路由通配符":

I am trying to follow the Railscast 241 Simple OmniAuth and it works fine unless I have Route Globbing at the end of /config/routes.rb:

match '*uri' => "posts#index"

如果我请求/auth/twitter进行通配，则OmniAuth将不执行任何操作:

If I request /auth/twitter with the globbing then OmniAuth does nothing:

Started GET "/auth/twitter" for 127.0.0.1 at 2011-04-03 19:17:44 +0200
  Processing by PostsController#index as HTML
  Parameters: {"uri"=>"auth/twitter"}
Rendered posts/index.html.haml within layouts/application (9.0ms)
Completed 200 OK in 103ms (Views: 14.6ms | ActiveRecord: 0.7ms)

没有通行路径，它就可以正确地进行身份验证.

Without the globbing route it authenticates correctly.

是否可以同时使用路由和OmniAuth?

Is there a way to have both the route globbing and OmniAuth?

推荐答案

The OmniAuth process is to provide the following functionality when a /auth/:provider URL is called:

1. 将请求传递到基础的Rack/Rails应用程序，就像没有OmniAuth一样；
2. 确定基础应用程序是否生成了404；
3. 如果这样做，请调用实际的OmniAuth功能.

由于本质上是使用路由全局匹配来匹配所有，因此您的应用程序将永远不会给出404，并且OmniAuth无法完成它的工作.我看到了两个即时选择.

Since you are essentially matching everything using your route globbing, your application will never give 404's, and OmniAuth cannot do it's job. I see two immediate options.

添加新路线，如下所示:

Add a new route as follows:

match '/auth/:provider' => 'omniauth#passthru'

然后创建一个控制器和一个生成404的动作:

Then create a controller and action that generates a 404:

class OmniauthController < ApplicationController
  def passthru
    render :file => "#{Rails.root}/public/404.html", :status => 404, :layout => false
  end
end

确定全球路由中的404状态

我假设您的全局路由将以某种方式搜索与URL匹配的帖子；您可以错过(例如，当PostsController#index找不到帖子时)，然后生成404.

Determine 404 Status in the Glob Route

I assume that your glob route will search for a post matching the URL somehow; you can take misses (e.g. when PostsController#index can't find a post) and generate 404's then.

class PostsController < ApplicationController
  def index
    if @posts = Post.find_by_current_url_or_whatever
      render 'index'
    else
      render :file => "#{Rails.root}/public/404.html", :status => 404, :layout => false
    end
  end
end

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