Ruby on rails decode_www_form_组件抱怨Rails应用程序中的“无效%-编码”

TLDR；在某些与字符相关的不太可能的情况下，如和&精炼厂缓存tmp/cache/损坏，从而阻止页面更新

我还没有找到一个长期的解决方案，但现在已经设法解决了这个问题，请参阅下面的修复部分。我正在发布我的发现，因为谷歌没有提供任何相关信息

通过refinery中的管理界面更新页面失败，出现以下错误：

ArgumentError (invalid %-encoding (fbGFuZ3VhZ2VfYW1vbmdfbm9uX01fb3JpX05ld19hbm5vdGF0ZWQucGRmIl1d%2Fde%2520Bres%2520-%25202008%2520-%2520Planning%2520for%2520Tolerability%2520Promoting%2520positive%2520attitudes%2520and%2520behaviours%2520towards%2520the%2520M%25c4%/2581ori%2520language%2520among%2520non-M%25c4%2581ori%2520New-annotated.pdf%3F)):
  /opt/rbenv/versions/2.1.2/lib/ruby/2.1.0/uri/common.rb:901:in `decode_www_form_component'
  rack (1.4.5) lib/rack/utils.rb:41:in `unescape'
  activesupport (3.2.18) lib/active_support/cache/file_store.rb:148:in `file_path_key'
  activesupport (3.2.18) lib/active_support/cache/file_store.rb:72:in `block (2 levels) in delete_matched'
  activesupport (3.2.18) lib/active_support/cache/file_store.rb:173:in `call'
  activesupport (3.2.18) lib/active_support/cache/file_store.rb:173:in `block in search_dir'
  activesupport (3.2.18) lib/active_support/cache/file_store.rb:167:in `foreach'
  activesupport (3.2.18) lib/active_support/cache/file_store.rb:167:in `search_dir'
  activesupport (3.2.18) lib/active_support/cache/file_store.rb:171:in `block in search_dir'
  activesupport (3.2.18) lib/active_support/cache/file_store.rb:167:in `foreach'
  activesupport (3.2.18) lib/active_support/cache/file_store.rb:167:in `search_dir'
  activesupport (3.2.18) lib/active_support/cache/file_store.rb:171:in `block in search_dir'
  activesupport (3.2.18) lib/active_support/cache/file_store.rb:167:in `foreach'
  activesupport (3.2.18) lib/active_support/cache/file_store.rb:167:in `search_dir'
  activesupport (3.2.18) lib/active_support/cache/file_store.rb:171:in `block in search_dir'
  activesupport (3.2.18) lib/active_support/cache/file_store.rb:167:in `foreach'
  activesupport (3.2.18) lib/active_support/cache/file_store.rb:167:in `search_dir'
  activesupport (3.2.18) lib/active_support/cache/file_store.rb:171:in `block in search_dir'
  activesupport (3.2.18) lib/active_support/cache/file_store.rb:167:in `foreach'
  activesupport (3.2.18) lib/active_support/cache/file_store.rb:167:in `search_dir'
  activesupport (3.2.18) lib/active_support/cache/file_store.rb:71:in `block in delete_matched'
  activesupport (3.2.18) lib/active_support/cache.rb:520:in `instrument'
  activesupport (3.2.18) lib/active_support/cache/file_store.rb:69:in `delete_matched'
  refinerycms-pages (2.1.2) lib/refinery/pages/caching.rb:29:in `clear_caching!'
  refinerycms-pages (2.1.2) lib/refinery/pages/caching.rb:12:in `expire!'
  refinerycms-pages (2.1.2) app/sweepers/refinery/pages/page_sweeper.rb:24:in `expire_cache!'
  refinerycms-pages (2.1.2) app/sweepers/refinery/pages/page_sweeper.rb:7:in `after_save'
  activemodel (3.2.18) lib/active_model/observing.rb:231:in `update'
  activerecord (3.2.18) lib/active_record/observer.rb:114:in `block (2 levels) in define_callbacks'
  activesupport (3.2.18) lib/active_support/callbacks.rb:472:in `_run__3016756163475691774__save__4349902776367396713__callbacks'
  activesupport (3.2.18) lib/active_support/callbacks.rb:405:in `__run_callback'
  activesupport (3.2.18) lib/active_support/callbacks.rb:385:in `_run_save_callbacks'
  activesupport (3.2.18) lib/active_support/callbacks.rb:81:in `run_callbacks'
  activerecord (3.2.18) lib/active_record/callbacks.rb:264:in `create_or_update'
  activerecord (3.2.18) lib/active_record/persistence.rb:84:in `save'
  activerecord (3.2.18) lib/active_record/validations.rb:50:in `save'
  activerecord (3.2.18) lib/active_record/attribute_methods/dirty.rb:22:in `save'
  activerecord (3.2.18) lib/active_record/transactions.rb:259:in `block (2 levels) in save'
  activerecord (3.2.18) lib/active_record/transactions.rb:313:in `block in with_transaction_returning_status'
  activerecord (3.2.18) lib/active_record/connection_adapters/abstract/database_statements.rb:192:in `transaction'
  activerecord (3.2.18) lib/active_record/transactions.rb:208:in `transaction'
  activerecord (3.2.18) lib/active_record/transactions.rb:311:in `with_transaction_returning_status'
  activerecord (3.2.18) lib/active_record/transactions.rb:259:in `block in save'
  activerecord (3.2.18) lib/active_record/transactions.rb:270:in `rollback_active_record_state!'
  activerecord (3.2.18) lib/active_record/transactions.rb:258:in `save'
  activerecord (3.2.18) lib/active_record/persistence.rb:217:in `block in update_attributes'
  activerecord (3.2.18) lib/active_record/transactions.rb:313:in `block in with_transaction_returning_status'
  activerecord (3.2.18) lib/active_record/connection_adapters/abstract/database_statements.rb:192:in `transaction'
  activerecord (3.2.18) lib/active_record/transactions.rb:208:in `transaction'
  activerecord (3.2.18) lib/active_record/transactions.rb:311:in `with_transaction_returning_status'
  activerecord (3.2.18) lib/active_record/persistence.rb:215:in `update_attributes'
  refinerycms-pages (2.1.2) app/controllers/refinery/admin/pages_controller.rb:29:in `update'
  actionpack (3.2.18) lib/action_controller/metal/implicit_render.rb:4:in `send_action'
  actionpack (3.2.18) lib/abstract_controller/base.rb:167:in `process_action'
  actionpack (3.2.18) lib/action_controller/metal/rendering.rb:10:in `process_action'
  actionpack (3.2.18) lib/abstract_controller/callbacks.rb:18:in `block in process_action'
  activesupport (3.2.18) lib/active_support/callbacks.rb:514:in `block in _run__3682042010644646627__process_action__616700943181112013__callbacks'
  activesupport (3.2.18) lib/active_support/callbacks.rb:215:in `block in _conditional_callback_around_506'
  activesupport (3.2.18) lib/active_support/callbacks.rb:326:in `around'
  activesupport (3.2.18) lib/active_support/callbacks.rb:310:in `_callback_around_395'
  activesupport (3.2.18) lib/active_support/callbacks.rb:214:in `_conditional_callback_around_506'
  activesupport (3.2.18) lib/active_support/callbacks.rb:502:in `_run__3682042010644646627__process_action__616700943181112013__callbacks'
  activesupport (3.2.18) lib/active_support/callbacks.rb:405:in `__run_callback'
  activesupport (3.2.18) lib/active_support/callbacks.rb:385:in `_run_process_action_callbacks'
  activesupport (3.2.18) lib/active_support/callbacks.rb:81:in `run_callbacks'
  actionpack (3.2.18) lib/abstract_controller/callbacks.rb:17:in `process_action'
  actionpack (3.2.18) lib/action_controller/metal/rescue.rb:29:in `process_action'
  actionpack (3.2.18) lib/action_controller/metal/instrumentation.rb:30:in `block in process_action'
  activesupport (3.2.18) lib/active_support/notifications.rb:123:in `block in instrument'
  activesupport (3.2.18) lib/active_support/notifications/instrumenter.rb:20:in `instrument'
  activesupport (3.2.18) lib/active_support/notifications.rb:123:in `instrument'
  actionpack (3.2.18) lib/action_controller/metal/instrumentation.rb:29:in `process_action'
  actionpack (3.2.18) lib/action_controller/metal/params_wrapper.rb:207:in `process_action'
  activerecord (3.2.18) lib/active_record/railties/controller_runtime.rb:18:in `process_action'
  actionpack (3.2.18) lib/abstract_controller/base.rb:121:in `process'
  actionpack (3.2.18) lib/abstract_controller/rendering.rb:45:in `process'
  actionpack (3.2.18) lib/action_controller/metal.rb:203:in `dispatch'
  actionpack (3.2.18) lib/action_controller/metal/rack_delegation.rb:14:in `dispatch'
  actionpack (3.2.18) lib/action_controller/metal.rb:246:in `block in action'
  actionpack (3.2.18) lib/action_dispatch/routing/route_set.rb:73:in `call'
  actionpack (3.2.18) lib/action_dispatch/routing/route_set.rb:73:in `dispatch'
  actionpack (3.2.18) lib/action_dispatch/routing/route_set.rb:36:in `call'
  journey (1.0.4) lib/journey/router.rb:68:in `block in call'
  journey (1.0.4) lib/journey/router.rb:56:in `each'
  journey (1.0.4) lib/journey/router.rb:56:in `call'
  actionpack (3.2.18) lib/action_dispatch/routing/route_set.rb:608:in `call'
  railties (3.2.18) lib/rails/engine.rb:484:in `call'
  railties (3.2.18) lib/rails/railtie/configurable.rb:30:in `method_missing'
  journey (1.0.4) lib/journey/router.rb:68:in `block in call'
  journey (1.0.4) lib/journey/router.rb:56:in `each'
  journey (1.0.4) lib/journey/router.rb:56:in `call'
  actionpack (3.2.18) lib/action_dispatch/routing/route_set.rb:608:in `call'
  warden (1.2.3) lib/warden/manager.rb:35:in `block in call'
  warden (1.2.3) lib/warden/manager.rb:34:in `catch'
  warden (1.2.3) lib/warden/manager.rb:34:in `call'
  actionpack (3.2.18) lib/action_dispatch/middleware/best_standards_support.rb:17:in `call'
  rack (1.4.5) lib/rack/etag.rb:23:in `call'
  rack (1.4.5) lib/rack/conditionalget.rb:35:in `call'
  actionpack (3.2.18) lib/action_dispatch/middleware/head.rb:14:in `call'
  actionpack (3.2.18) lib/action_dispatch/middleware/params_parser.rb:21:in `call'
  actionpack (3.2.18) lib/action_dispatch/middleware/flash.rb:242:in `call'
  rack (1.4.5) lib/rack/session/abstract/id.rb:210:in `context'
  rack (1.4.5) lib/rack/session/abstract/id.rb:205:in `call'
  actionpack (3.2.18) lib/action_dispatch/middleware/cookies.rb:341:in `call'
  dragonfly (0.9.15) lib/dragonfly/cookie_monster.rb:9:in `call'
  activerecord (3.2.18) lib/active_record/query_cache.rb:64:in `call'
  activerecord (3.2.18) lib/active_record/connection_adapters/abstract/connection_pool.rb:479:in `call'
  actionpack (3.2.18) lib/action_dispatch/middleware/callbacks.rb:28:in `block in call'
  activesupport (3.2.18) lib/active_support/callbacks.rb:405:in `_run__739920887154609660__call__4349902776367396713__callbacks'
  activesupport (3.2.18) lib/active_support/callbacks.rb:405:in `__run_callback'
  activesupport (3.2.18) lib/active_support/callbacks.rb:385:in `_run_call_callbacks'
  activesupport (3.2.18) lib/active_support/callbacks.rb:81:in `run_callbacks'
  actionpack (3.2.18) lib/action_dispatch/middleware/callbacks.rb:27:in `call'
  actionpack (3.2.18) lib/action_dispatch/middleware/remote_ip.rb:31:in `call'
  actionpack (3.2.18) lib/action_dispatch/middleware/debug_exceptions.rb:16:in `call'
  actionpack (3.2.18) lib/action_dispatch/middleware/show_exceptions.rb:56:in `call'
  railties (3.2.18) lib/rails/rack/logger.rb:32:in `call_app'
  railties (3.2.18) lib/rails/rack/logger.rb:16:in `block in call'
  activesupport (3.2.18) lib/active_support/tagged_logging.rb:22:in `tagged'
  railties (3.2.18) lib/rails/rack/logger.rb:16:in `call'
  actionpack (3.2.18) lib/action_dispatch/middleware/request_id.rb:22:in `call'
  rack (1.4.5) lib/rack/methodoverride.rb:21:in `call'
  rack (1.4.5) lib/rack/runtime.rb:17:in `call'
  activesupport (3.2.18) lib/active_support/cache/strategy/local_cache.rb:72:in `call'
  rack (1.4.5) lib/rack/lock.rb:15:in `call'
  rack-cache (1.2) lib/rack/cache/context.rb:136:in `forward'
  rack-cache (1.2) lib/rack/cache/context.rb:143:in `pass'
  rack-cache (1.2) lib/rack/cache/context.rb:155:in `invalidate'
  rack-cache (1.2) lib/rack/cache/context.rb:71:in `call!'
  rack-cache (1.2) lib/rack/cache/context.rb:51:in `call'
  railties (3.2.18) lib/rails/engine.rb:484:in `call'
  railties (3.2.18) lib/rails/application.rb:231:in `call'
  railties (3.2.18) lib/rails/railtie/configurable.rb:30:in `method_missing'
  unicorn (4.8.2) lib/unicorn/http_server.rb:572:in `process_client'
  unicorn (4.8.2) lib/unicorn/http_server.rb:666:in `worker_loop'
  unicorn (4.8.2) lib/unicorn/http_server.rb:521:in `spawn_missing_workers'
  unicorn (4.8.2) lib/unicorn/http_server.rb:532:in `maintain_worker_count'
  unicorn (4.8.2) lib/unicorn/http_server.rb:290:in `join'
  unicorn (4.8.2) bin/unicorn_rails:209:in `<top (required)>'
  /home/deploy/mlc/shared/bundle/ruby/2.1.0/bin/unicorn_rails:23:in `load'
  /home/deploy/mlc/shared/bundle/ruby/2.1.0/bin/unicorn_rails:23:in `<main>'

总结：

更新被调用 请在更新后清除缓存 此服务器处理的文件名不正确 rails调用文件名上的URI.decode\u www\u form\u组件 爆炸性的神奇乐趣！ 注:

这适用于炼油厂的2.1.0版，我还没有机会在更新的版本中测试它。 有关文件如下：tmp/cache/BA1/EDA/http%3A%2F%2Fwhakarauora.org.nz%2Fsystem%2Fresources%2fw1siijiwmtqvmtavmdyvmtdfmdvfntbfnzzzkzrlx0jyzxnfmjawof 9qbgffubmluz19mb3jfvg9szjymlsaxr5x1byb21vgluz19wb3pdgl2zv9hdhrpdhvkzywyw5kx2agf2aw91cnfdg93yxjkc190agvftvc9vcml/fbfffffffzzfzzxxxxxxxxxxxxx2520vc15vc1vx252%f20%f20%2fxxxxxxxxxxx2520%2fxxxxxxxxxxxx0为%2520可容忍性%2520进行规划%2520推广%2520积极的%2520态度%2520和%2520行为%2520向%2520在%2520非M%25c4%2581ori%2520中的%2520语言%2520新注释的%2520。pdf%3F 这似乎是http请求的记录 这些文件是预先存在的，不是由更新调用创建的 问题似乎是 已进行百分比编码调用%->%25 巨大的文件名被写入目录中…文件名为%2520M%25c4%/ 在本例中，这将在百分比编码%25的三个字符之间拆分 这导致了URI.decode\u www\u form\u组件的问题，但URI.unescape可以工作 这意味着在缓存文件中使用大量非ASCII或标点符号，并使用非英语语言，会增加发生这种情况的可能性。 修正：

---

我修复了这一问题，通过将sshing放到框中，使用find RAILS_DIRNAME/tmp/cache-name'*%'-或-name'*%？'查找有问题的目录，然后删除它们。这暂时解决了问题，但以后可能需要重复。

我找到了解决此问题的方法。也许它不太漂亮，但对我来说很有用。在environments/production.rb中，change config.action\u controller.perform\u caching为false

运行rake tmp:cache:clear后，将文件名更改为短名称并使用下划线而不是空格对我来说非常有效。谢谢George，这肯定会解决问题。不过我希望能继续跑下去。

activesupport (3.2.18) lib/active_support/cache/file_store.rb:69:in `delete_matched'
refinerycms-pages (2.1.2) lib/refinery/pages/caching.rb:29:in `clear_caching!'
refinerycms-pages (2.1.2) lib/refinery/pages/caching.rb:12:in `expire!'
refinerycms-pages (2.1.2) app/sweepers/refinery/pages/page_sweeper.rb:24:in `expire_cache!'
refinerycms-pages (2.1.2) app/sweepers/refinery/pages/page_sweeper.rb:7:in `after_save'

...

refinerycms-pages (2.1.2) app/controllers/refinery/admin/pages_controller.rb:29:in `update'