Rails ActionController :: BadRequest在生产服务器上导致500服务器错误

Question

我们有一个土耳其网站,一些旧链接被一些搜索引擎抓取.链接似乎格式不正确或无法处理,从而导致ActionController::BadRequest错误.在本地计算机上development env导致返回Rails错误页面ActionController::BadRequest.

但是在服务器上我们得到了一个500 server error.这个问题在这里的其他几个页面上讨论过.但是这些解决方案都没有帮助.

在这两种情况下,我们page not found都想重定向到-page.

我已经尝试过rescue_from ActionController::BadRequest,并rescue_from ActionController::RoutingError在ApplicationController因上述物品的,他们指出BadRequest变成RoutingError.

但他们都没有奏效.

我希望有人遇到同样的问题并且已经解决了.提前感谢您的回答.

编辑:

一个示例问题 - 网址是http://localhost:3000/Di%c5%ef%bf%bd-f%c4%b1r%c3%a7as%c4%b1.

终端输出:

ActionController::BadRequest (ActionController::BadRequest):
  actionpack (4.0.0) lib/action_dispatch/routing/route_set.rb:37:in `block in call'
  actionpack (4.0.0) lib/action_dispatch/routing/route_set.rb:33:in `each'
  actionpack (4.0.0) lib/action_dispatch/routing/route_set.rb:33:in `call'
  actionpack (4.0.0) lib/action_dispatch/journey/router.rb:71:in `block in call'
  actionpack (4.0.0) lib/action_dispatch/journey/router.rb:59:in `each'
  actionpack (4.0.0) lib/action_dispatch/journey/router.rb:59:in `call'
  actionpack (4.0.0) lib/action_dispatch/routing/route_set.rb:655:in `call'
  newrelic_rpm (3.6.4.122) lib/new_relic/rack/error_collector.rb:12:in `call'
  newrelic_rpm (3.6.4.122) lib/new_relic/rack/agent_hooks.rb:22:in `call'
  newrelic_rpm (3.6.4.122) lib/new_relic/rack/browser_monitoring.rb:16:in `call'
  newrelic_rpm (3.6.4.122) lib/new_relic/rack/developer_mode.rb:28:in `call'
  rack (1.5.2) lib/rack/etag.rb:23:in `call'
  rack (1.5.2) lib/rack/conditionalget.rb:25:in `call'
  rack (1.5.2) lib/rack/head.rb:11:in `call'
  actionpack (4.0.0) lib/action_dispatch/middleware/params_parser.rb:27:in `call'
  actionpack (4.0.0) lib/action_dispatch/middleware/flash.rb:241:in `call'
  rack (1.5.2) lib/rack/session/abstract/id.rb:225:in `context'
  rack (1.5.2) lib/rack/session/abstract/id.rb:220:in `call'
  actionpack (4.0.0) lib/action_dispatch/middleware/cookies.rb:486:in `call'
  actionpack (4.0.0) lib/action_dispatch/middleware/callbacks.rb:29:in `block in call'
  activesupport (4.0.0) lib/active_support/callbacks.rb:373:in `_run__4278100521352222029__call__callbacks'
  activesupport (4.0.0) lib/active_support/callbacks.rb:80:in `run_callbacks'
  actionpack (4.0.0) lib/action_dispatch/middleware/callbacks.rb:27:in `call'
  actionpack (4.0.0) lib/action_dispatch/middleware/reloader.rb:64:in `call'
  actionpack (4.0.0) lib/action_dispatch/middleware/remote_ip.rb:76:in `call'
  actionpack (4.0.0) lib/action_dispatch/middleware/debug_exceptions.rb:17:in `call'
  rollbar (0.11.7) lib/rollbar/middleware/rails/show_exceptions.rb:19:in `call_with_rollbar'
  actionpack (4.0.0) lib/action_dispatch/middleware/show_exceptions.rb:30:in `call'
  railties (4.0.0) lib/rails/rack/logger.rb:38:in `call_app'
  railties (4.0.0) lib/rails/rack/logger.rb:21:in `block in call'
  activesupport (4.0.0) lib/active_support/tagged_logging.rb:67:in `block in tagged'
  activesupport (4.0.0) lib/active_support/tagged_logging.rb:25:in `tagged'
  activesupport (4.0.0) lib/active_support/tagged_logging.rb:67:in `tagged'
  railties (4.0.0) lib/rails/rack/logger.rb:21:in `call'
  actionpack (4.0.0) lib/action_dispatch/middleware/request_id.rb:21:in `call'
  rack (1.5.2) lib/rack/methodoverride.rb:21:in `call'
  rack (1.5.2) lib/rack/runtime.rb:17:in `call'
  activesupport (4.0.0) lib/active_support/cache/strategy/local_cache.rb:83:in `call'
  rack (1.5.2) lib/rack/lock.rb:17:in `call'
  actionpack (4.0.0) lib/action_dispatch/middleware/static.rb:64:in `call'
  railties (4.0.0) lib/rails/engine.rb:511:in `call'
  railties (4.0.0) lib/rails/application.rb:97:in `call'
  rack (1.5.2) lib/rack/content_length.rb:14:in `call'
  puma (2.6.0) lib/puma/server.rb:486:in `handle_request'
  puma (2.6.0) lib/puma/server.rb:357:in `process_client'
  puma (2.6.0) lib/puma/server.rb:250:in `block in run'
  puma (2.6.0) lib/puma/thread_pool.rb:92:in `call'
  puma (2.6.0) lib/puma/thread_pool.rb:92:in `block in spawn_thread'

最好的祝福

Answer 1

有一个黑客。把这段代码放进去initializers

module Rack
  module Utils
    alias_method :original_normalize_params, :normalize_params
    module_function :original_normalize_params

    def normalize_params(params, name, v = nil)
      begin
        original_normalize_params(params, name, v)
      rescue => e
        raise ActionController::BadRequest.new("Incorrect URL")
      end
    end

    module_function :normalize_params
  end
end

对于类似的请求，它将响应 400http://127.0.0.1:3000/?foo[]=array&foo[hash]=hash

编辑：

此外，还可以实现检查参数正确性的中间件。

通过中间件捕获不良查询

# config/application.rb

require File.expand_path('../../lib/query_validator', __FILE__)

module MyApp
  class Application < Rails::Application
    # configurations

    config.middleware.insert_before('ActionDispatch::ShowExceptions', QueryValidator)
  end
end

# lib/query_validator.rb

class QueryValidator
  def initialize(app)
    @app = app
  end

  def call(env)
    begin
      Rack::Utils.parse_nested_query(env['QUERY_STRING'])

      env['QUERY_STRING'].valid_encoding? or
        raise ActionController::BadRequest, "Invalid parameter: #{env['QUERY_STRING']}"
    rescue => e
      env['QUERY_STRING'] = ''
      env['my_app.query_errors'] = 'Invalid query.'
    end

    @app.call(env)
  end
end


# application_controller.rb
class ApplicationController < ActionController::Base
  before_filter do
    if env['my_app.query_errors']
      flash[:alert] = env['my_app.query_errors']
      redirect_to root_path
    end
  end

end