Rails 3 和奇怪的接受头 [英] Rails 3 and Strange Accept Headers

问题描述

我的 Rails 3 站点被带有奇怪接受标头的爬虫攻击，触发异常

My Rails 3 site is getting hit by crawlers with strange accept headers, trigger exceptions as like

ActionView::MissingTemplate occurred in home#show

以下是一些导致问题的接受标头

Here are some of the accept headers causing issues

text/*
application/jxw
*/*;q=0.1

在这些情况下，这会被解释为请求的格式，因此会导致缺少模板错误.我真的不在乎我返回这些爬虫什么，只是想避免异常.

In these cases, this is being interpreted as the format for the request, and as such, causing the missing template error. I don't really care what I return to these crawlers, but just want to avoid the exceptions.

推荐答案

你可以在你的应用程序控制器中从这样的异常中拯救出来并渲染 HTML 模板:

You could rescue from exception like this in your application controller and render the HTML template instead:

class ApplicationController
  rescue_from ActionView::MissingTemplate, :with => :render_html

  def render_html
    if not request.format == "html" and Rails.env.production?
      render :format => "html"
    else
      raise ActionView::MissingTemplate
    end
  end
end

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