由于bot,Ruby on Rails"UTF-8中的无效字节序列"

我有一些由中国机器人触发的错误:http://www.easou.com/search/spider.html滚动我的网站时.

我的应用程序的版本都使用Ruby 1.9.3和Rails 3.2.X

这里是一个堆栈跟踪:

An ArgumentError occurred in listings#show:

  invalid byte sequence in UTF-8
  rack (1.4.5) lib/rack/utils.rb:104:in `normalize_params'


-------------------------------
Request:
-------------------------------

  * URL       : http://www.my-website.com
  * IP address: X.X.X.X
  * Parameters: {"action"=>"show", "controller"=>"listings", "id"=>"location-t7-villeurbanne--58"}
  * Rails root: /.../releases/20140708150222
  * Timestamp : 2014-07-09 02:57:43 +0200

-------------------------------
Backtrace:
-------------------------------

  rack (1.4.5) lib/rack/utils.rb:104:in `normalize_params'
  rack (1.4.5) lib/rack/utils.rb:96:in `block in parse_nested_query'
  rack (1.4.5) lib/rack/utils.rb:93:in `each'
  rack (1.4.5) lib/rack/utils.rb:93:in `parse_nested_query'
  rack (1.4.5) lib/rack/request.rb:332:in `parse_query'
  actionpack (3.2.18) lib/action_dispatch/http/request.rb:275:in `parse_query'
  rack (1.4.5) lib/rack/request.rb:209:in `POST'
  actionpack (3.2.18) lib/action_dispatch/http/request.rb:237:in `POST'
  actionpack (3.2.18) lib/action_dispatch/http/parameters.rb:10:in `parameters'

-------------------------------
Session:
-------------------------------

  * session id: nil
  * data: {}

-------------------------------
Environment:
-------------------------------

  * CONTENT_LENGTH                                 : 514
  * CONTENT_TYPE                                   : application/x-www-form-urlencoded
  * HTTP_ACCEPT                                    : text/html, application/xml;q=0.9, application/xhtml+xml, image/png, image/jpeg, image/gif, image/x-xbitmap, */*;q=0.1
  * HTTP_ACCEPT_ENCODING                           : gzip, deflate
  * HTTP_ACCEPT_LANGUAGE                           : zh;q=0.9,en;q=0.8
  * HTTP_CONNECTION                                : close
  * HTTP_HOST                                      : www.my-website.com
  * HTTP_REFER                                     : http://www.my-website.com/
  * HTTP_USER_AGENT                                : Mozilla/5.0 (compatible; EasouSpider; +http://www.easou.com/search/spider.html)
  * ORIGINAL_FULLPATH                              : /
  * PASSENGER_APP_SPAWNER_IDLE_TIME                : -1
  * PASSENGER_APP_TYPE                             : rack
  * PASSENGER_CONNECT_PASSWORD                     : [FILTERED]
  * PASSENGER_DEBUGGER                             : false
  * PASSENGER_ENVIRONMENT                          : production
  * PASSENGER_FRAMEWORK_SPAWNER_IDLE_TIME          : -1
  * PASSENGER_FRIENDLY_ERROR_PAGES                 : true
  * PASSENGER_GROUP                                :
  * PASSENGER_MAX_REQUESTS                         : 0
  * PASSENGER_MIN_INSTANCES                        : 1
  * PASSENGER_SHOW_VERSION_IN_HEADER               : true
  * PASSENGER_SPAWN_METHOD                         : smart-lv2
  * PASSENGER_USER                                 :
  * PASSENGER_USE_GLOBAL_QUEUE                     : true
  * PATH_INFO                                      : /
  * QUERY_STRING                                   :
  * REMOTE_ADDR                                    : 183.60.212.153
  * REMOTE_PORT                                    : 52997
  * REQUEST_METHOD                                 : GET
  * REQUEST_URI                                    : /
  * SCGI                                           : 1
  * SCRIPT_NAME                                    :
  * SERVER_PORT                                    : 80
  * SERVER_PROTOCOL                                : HTTP/1.1
  * SERVER_SOFTWARE                                : nginx/1.2.6
  * UNION_STATION_SUPPORT                          : false
  * _                                              : _
  * action_controller.instance                     : listings#show
  * action_dispatch.backtrace_cleaner              : #
  * action_dispatch.cookies                        : #
  * action_dispatch.logger                         : #
  * action_dispatch.parameter_filter               : [:password, /RAW_POST_DATA/, /RAW_POST_DATA/, /RAW_POST_DATA/]
  * action_dispatch.remote_ip                      : 183.60.212.153
  * action_dispatch.request.content_type           : application/x-www-form-urlencoded
  * action_dispatch.request.parameters             : {"action"=>"show", "controller"=>"listings", "id"=>"location-t7-villeurbanne--58"}
  * action_dispatch.request.path_parameters        : {:action=>"show", :controller=>"listings", :id=>"location-t7-villeurbanne--58"}
  * action_dispatch.request.query_parameters       : {}
  * action_dispatch.request.request_parameters     : {}
  * action_dispatch.request.unsigned_session_cookie: {}
  * action_dispatch.request_id                     : 9f8afbc8ff142f91ddbd9cabee3629f3
  * action_dispatch.routes                         : #
  * action_dispatch.show_detailed_exceptions       : false
  * action_dispatch.show_exceptions                : true
  * rack-cache.allow_reload                        : false
  * rack-cache.allow_revalidate                    : false
  * rack-cache.cache_key                           : Rack::Cache::Key
  * rack-cache.default_ttl                         : 0
  * rack-cache.entitystore                         : rails:/
  * rack-cache.ignore_headers                      : ["Set-Cookie"]
  * rack-cache.metastore                           : rails:/
  * rack-cache.private_headers                     : ["Authorization", "Cookie"]
  * rack-cache.storage                             : #
  * rack-cache.use_native_ttl                      : false
  * rack-cache.verbose                             : false
  * rack.errors                                    : #
  * rack.input                                     : #
  * rack.multiprocess                              : true
  * rack.multithread                               : false
  * rack.request.cookie_hash                       : {}
  * rack.request.form_hash                         :
  * rack.request.form_input                        : #
  * rack.request.form_vars                         : ???W?"???q?B??)???
?F??P   Z? 8?? &   G\y?P??u?T ed ?.?%?mxEA?\?d*?Hg?     ?C??lj??? ? U 1??]pgt?P?
  ?    ??c"? ??LX??D???HR?y??p`6?l???lN?P ?l?S????`V4y??c????X2?        &JO!??*p ?l??-??U??w }g??k?? (? F J??  q?:?5G?Jh?p??????]                                                                                                                                                                                                                                                                           ?z?h???? d }?}
  * rack.request.query_hash                        : {}
  * rack.request.query_string                      :
  * rack.run_once                                  : false
  * rack.session                                   : {}
  * rack.session.options                           : {:path=>"/", :domain=>nil, :expire_after=>nil, :secure=>false, :httponly=>true, :defer=>false, :renew=>false, :coder=>#, :id=>nil}
  * rack.url_scheme                                : http
  * rack.version                                   : [1, 0]

正如您所看到的,网址中没有无效的utf-8,但仅限于rack.request.form_vars.我每天有大约100个错误,并且与此类似.

所以,我尝试rack.request.form_vars用这样的东西强制使用utf-8 :

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

  def call(env)
    if env["rack.request.form_vars"] 
      env["rack.request.form_vars"] = env["rack.request.form_vars"].force_encoding('UTF-8')
    end
    @app.call(env)
  end
end

我称之为application.rb:

config.middleware.use "RackFormVarsSanitizer"

它似乎不起作用,因为我已经有错误.问题是我无法在开发模式下测试,因为我不知道如何设置rack.request.form_vars.

我安装了utf8-cleaner宝石,但没有任何修复.

有人有想法解决这个问题吗？或者在开发中触发它？