使用 Knock gem 生成 JWT 令牌时出现 500 内部服务器错误

Posted 2023-03-07

【中文标题】使用 Knock gem 生成 JWT 令牌时出现 500 内部服务器错误

【英文标题】：500 Internal Server Error when generating JWT token using Knock gem

【发布时间】：2016-05-21 06:21:38

【问题描述】：

我正在尝试使用我的 Ruby on Rails 应用程序中的 Knock gem 使用 JWT Web 令牌验证我的 API 请求。

我按照自述文件的说明做了并修改了routes.rb 文件。

之后，我尝试使用 cURL 获取令牌以查看是否一切正常。我输入了curl -XPOST -H "Content-Type: application/json" -d '"auth": "email": "[e-mail]", "password": "password"' localhost:3000/auth/auth_token（敲门被挂载到“/auth”并且用户存在）。

但是，我收到 500 内部服务器错误和此堆栈跟踪：

`Processing by Knock::AuthTokenController#create as */*
  Parameters: "auth"=>"email"=>"[e-mail]", "password"=>"[FILTERED]"
  User Load (0.2ms)  SELECT  "users".* FROM "users" WHERE "users"."email" = ? LIMIT 1  [["email", "[e-mail]"]]
  CACHE (0.0ms)  SELECT  "users".* FROM "users" WHERE "users"."email" = ? LIMIT 1  [["email", "[e-mail]"]]
Completed 500 Internal Server Error in 104ms (ActiveRecord: 0.5ms)`

`TypeError (no implicit conversion of nil into String):
  jwt (1.5.2) lib/jwt.rb:73:in 'digest'
  jwt (1.5.2) lib/jwt.rb:73:in 'sign_hmac'
  jwt (1.5.2) lib/jwt.rb:34:in 'sign'
  jwt (1.5.2) lib/jwt.rb:98:in 'encoded_signature'
  jwt (1.5.2) lib/jwt.rb:108:in 'encode'
  knock (1.4.1) app/model/knock/auth_token.rb:13:in 'initialize'
  knock (1.4.1) app/controllers/knock/auth_token_controller.rb:17:in 'new'
  knock (1.4.1) app/controllers/knock/auth_token_controller.rb:17:in 'auth_token'
  knock (1.4.1) app/controllers/knock/auth_token_controller.rb:8:in 'create'
actionpack (4.2.5) lib/action_controller/metal/implicit_render.rb:4:in `send_action'
  actionpack (4.2.5) lib/abstract_controller/base.rb:198:in `process_action'
  actionpack (4.2.5) lib/action_controller/metal/rendering.rb:10:in `process_action'
  actionpack (4.2.5) lib/abstract_controller/callbacks.rb:20:in `block in process_action'
  activesupport (4.2.5) lib/active_support/callbacks.rb:117:in `call'
  activesupport (4.2.5) lib/active_support/callbacks.rb:117:in `call'
  activesupport (4.2.5) lib/active_support/callbacks.rb:555:in `block (2 levels) in compile'
  activesupport (4.2.5) lib/active_support/callbacks.rb:505:in `call'
  activesupport (4.2.5) lib/active_support/callbacks.rb:505:in `call'
  activesupport (4.2.5) lib/active_support/callbacks.rb:92:in `__run_callbacks__'
  activesupport (4.2.5) lib/active_support/callbacks.rb:778:in `_run_process_action_callbacks'
  activesupport (4.2.5) lib/active_support/callbacks.rb:81:in `run_callbacks'
  actionpack (4.2.5) lib/abstract_controller/callbacks.rb:19:in `process_action'
  actionpack (4.2.5) lib/action_controller/metal/rescue.rb:29:in `process_action'
  actionpack (4.2.5) lib/action_controller/metal/instrumentation.rb:32:in `block in process_action'
  activesupport (4.2.5) lib/active_support/notifications.rb:164:in `block in instrument'
  activesupport (4.2.5) lib/active_support/notifications/instrumenter.rb:20:in `instrument'
  activesupport (4.2.5) lib/active_support/notifications.rb:164:in `instrument'
  actionpack (4.2.5) lib/action_controller/metal/instrumentation.rb:30:in `process_action'
  actionpack (4.2.5) lib/action_controller/metal/params_wrapper.rb:250:in `process_action'
  activerecord (4.2.5) lib/active_record/railties/controller_runtime.rb:18:in `process_action'
  actionpack (4.2.5) lib/abstract_controller/base.rb:137:in `process'
  actionview (4.2.5) lib/action_view/rendering.rb:30:in `process'
  actionpack (4.2.5) lib/action_controller/metal.rb:196:in `dispatch'
  actionpack (4.2.5) lib/action_controller/metal/rack_delegation.rb:13:in `dispatch'
  actionpack (4.2.5) lib/action_controller/metal.rb:237:in `block in action'
  actionpack (4.2.5) lib/action_dispatch/routing/route_set.rb:76:in `call'
  actionpack (4.2.5) lib/action_dispatch/routing/route_set.rb:76:in `dispatch'
  actionpack (4.2.5) lib/action_dispatch/routing/route_set.rb:45:in `serve'
  actionpack (4.2.5) lib/action_dispatch/journey/router.rb:43:in `block in serve'
  actionpack (4.2.5) lib/action_dispatch/journey/router.rb:30:in `each'
  actionpack (4.2.5) lib/action_dispatch/journey/router.rb:30:in `serve'
  actionpack (4.2.5) lib/action_dispatch/routing/route_set.rb:817:in `call'
  railties (4.2.5) lib/rails/engine.rb:518:in `call'
  railties (4.2.5) lib/rails/railtie.rb:194:in `public_send'
  railties (4.2.5) lib/rails/railtie.rb:194:in `method_missing'
  actionpack (4.2.5) lib/action_dispatch/routing/mapper.rb:51:in `serve'
  actionpack (4.2.5) lib/action_dispatch/journey/router.rb:43:in `block in serve'
  actionpack (4.2.5) lib/action_dispatch/journey/router.rb:30:in `each'
  actionpack (4.2.5) lib/action_dispatch/journey/router.rb:30:in `serve'
  actionpack (4.2.5) lib/action_dispatch/routing/route_set.rb:817:in `call'
  rack (1.6.4) lib/rack/etag.rb:24:in `call'
  rack (1.6.4) lib/rack/conditionalget.rb:38:in `call'
  rack (1.6.4) lib/rack/head.rb:13:in `call'
  actionpack (4.2.5) lib/action_dispatch/middleware/params_parser.rb:27:in `call'
  activerecord (4.2.5) lib/active_record/query_cache.rb:36:in `call'
  activerecord (4.2.5) lib/active_record/connection_adapters/abstract/connection_pool.rb:653:in `call'
  activerecord (4.2.5) lib/active_record/migration.rb:377:in `call'
  actionpack (4.2.5) lib/action_dispatch/middleware/callbacks.rb:29:in `block in call'
  activesupport (4.2.5) lib/active_support/callbacks.rb:88:in `__run_callbacks__'
  activesupport (4.2.5) lib/active_support/callbacks.rb:778:in `_run_call_callbacks'
  activesupport (4.2.5) lib/active_support/callbacks.rb:81:in `run_callbacks'
  actionpack (4.2.5) lib/action_dispatch/middleware/callbacks.rb:27:in `call'
  actionpack (4.2.5) lib/action_dispatch/middleware/reloader.rb:73:in `call'
  actionpack (4.2.5) lib/action_dispatch/middleware/remote_ip.rb:78:in `call'
  actionpack (4.2.5) lib/action_dispatch/middleware/debug_exceptions.rb:17:in `call'
  actionpack (4.2.5) lib/action_dispatch/middleware/show_exceptions.rb:30:in `call'
  railties (4.2.5) lib/rails/rack/logger.rb:38:in `call_app'
  railties (4.2.5) lib/rails/rack/logger.rb:20:in `block in call'
  activesupport (4.2.5) lib/active_support/tagged_logging.rb:68:in `block in tagged'
  activesupport (4.2.5) lib/active_support/tagged_logging.rb:26:in `tagged'
  activesupport (4.2.5) lib/active_support/tagged_logging.rb:68:in `tagged'
  railties (4.2.5) lib/rails/rack/logger.rb:20:in `call'
  actionpack (4.2.5) lib/action_dispatch/middleware/request_id.rb:21:in `call'
  rack (1.6.4) lib/rack/runtime.rb:18:in `call'
  activesupport (4.2.5) lib/active_support/cache/strategy/local_cache_middleware.rb:28:in `call'
  rack (1.6.4) lib/rack/lock.rb:17:in `call'
  actionpack (4.2.5) lib/action_dispatch/middleware/static.rb:116:in `call'
  rack-cors (0.4.0) lib/rack/cors.rb:80:in `call'
  railties (4.2.5) lib/rails/engine.rb:518:in `call'
  railties (4.2.5) lib/rails/application.rb:165:in `call'
  rack (1.6.4) lib/rack/lock.rb:17:in `call'
  rack (1.6.4) lib/rack/content_length.rb:15:in `call'
  rack (1.6.4) lib/rack/handler/webrick.rb:88:in `service'
  /home/user/.rbenv/versions/2.2.3/lib/ruby/2.2.0/webrick/httpserver.rb:138:in `service'
  /home/user/.rbenv/versions/2.2.3/lib/ruby/2.2.0/webrick/httpserver.rb:94:in `run'
  /home/user/.rbenv/versions/2.2.3/lib/ruby/2.2.0/webrick/server.rb:294:in `block in start_thread'

我不知道是什么原因造成的。更奇怪的是，我正在和一个朋友一起工作，他能够生成一个令牌，即使我们在同一个分支上并且环境 应该 是相同的（显然不是，但是我不知道我们有什么不同）。

我有谷歌，但似乎没有人有同样的问题（或者我在谷歌搜索错误的东西）。

我正在使用 Ubuntu 14.04 LTS 和 sqlite 作为数据库，如果有帮助的话。

提前致谢！

【参考方案1】：

我最终设法让它工作。

我做的是

卸载 Ruby（删除系统范围内对它的所有引用，清理软件包，更新所有内容并执行dist-upgrade 重新安装了 Ruby（我用的是 rbenv，但应该和你想要的一样） 由于我在项目的新分支中工作，所以我删除了项目文件夹并从 git 中再次克隆了它 在正确配置 Ruby 后重新安装 bundle（我按照 rbenv 的 github 页面中的指南进行操作） 在我的项目中运行 bundle，它得到了我需要的所有宝石 为 Rails 服务器配置了我的秘密（rake secret 并将其粘贴到 config/secret.yml）

在此之后它开始工作了。 我最好的猜测是我错误地配置了服务器或者我的 gem 损坏了。