在 Sinatra 中过滤之前导致重定向循环

Question

我有这个简单的代码：

require 'sinatra'

before  do
  redirect '/login'
end

get '/login' do
  'hello'
end

get '/test' do
  'should not show'
end

这个简单的应用程序应该重定向每条路线，包括 /test 到 login 路线。相反，我得到了一个重定向循环。

我用的是最新版的Sinatra 2.0.5

Answer 1

您需要从 before_filter

中排除 /login 路线

before do
  redirect '/login' if request.path_info != "/login"
end

Answer 2

上面提供了一个解决方案，但解释是redirect触发了浏览器重定向，因此该过程每次都会在开始时重新开始。要使用服务器端重定向，请使用 call。来自 the docs:

Triggering Another Route

Sometimes pass is not what you want, instead you would like to get the result of calling another route. Simply use call to achieve this:

get '/foo' do
  status, headers, body = call env.merge("PATH_INFO" => '/bar')
  [status, headers, body.map(&:upcase)]
end

get '/bar' do
  "bar"
end

Note that in the example above, you would ease testing and increase performance by simply moving "bar" into a helper used by both /foo and /bar.

If you want the request to be sent to the same application instance rather than a duplicate, use call! instead of call.

Check out the Rack specification if you want to learn more about call.

因此，您可能需要一个助手（或者更可能需要一个条件，如果您正在检查身份验证）。

在 Sinatra 中过滤之前导致重定向循环

Before filter in Sinatra causing a redirect loop

ruby

sinatra