Ruby on rails OAuth2GemV0.5.0错误

我得到一个非常不透明的错误，代码如下：

client = OAuth2::Client.new(
    "#{FACEBOOK_CONFIG['application_id']}", "#{FACEBOOK_CONFIG['secret_key']}",
    :site => 'https://graph.facebook.com'
    )
token = OAuth2::AccessToken.new(client, fb_token)
token.get('/me')

当我执行token.get'/me'时，我得到以下输出：

OAuth2:：错误异常：OAuth2:：错误

此代码适用于v0.4.1，但不适用于v0.5.0

以下是堆栈跟踪：

OAuth2::Error
Rails.root: /Users/myname/Sites/mysite

Application Trace | Framework Trace | Full Trace
oauth2 (0.5.0) lib/oauth2/client.rb:107:in `request'
oauth2 (0.5.0) lib/oauth2/access_token.rb:98:in `request'
oauth2 (0.5.0) lib/oauth2/access_token.rb:105:in `get'
app/models/facebook_session.rb:430:in `get_fb_me'
app/models/facebook_session.rb:45:in `get_fb_user_id'
app/models/facebook_session.rb:258:in `authenticate'
app/controllers/devise/registrations_controller.rb:42:in `create'
actionpack (3.0.3) lib/action_controller/metal/implicit_render.rb:4:in `send_action'
actionpack (3.0.3) lib/abstract_controller/base.rb:151:in `process_action'
actionpack (3.0.3) lib/action_controller/metal/rendering.rb:11:in `process_action'
actionpack (3.0.3) lib/abstract_controller/callbacks.rb:18:in `block in process_action'
activesupport (3.0.3) lib/active_support/callbacks.rb:470:in `_run__664618575269127242__process_action__2116611615142804558__callbacks'
activesupport (3.0.3) lib/active_support/callbacks.rb:409:in `_run_process_action_callbacks'
activesupport (3.0.3) lib/active_support/callbacks.rb:93:in `run_callbacks'
actionpack (3.0.3) lib/abstract_controller/callbacks.rb:17:in `process_action'
actionpack (3.0.3) lib/action_controller/metal/instrumentation.rb:30:in `block in process_action'
activesupport (3.0.3) lib/active_support/notifications.rb:52:in `block in instrument'
activesupport (3.0.3) lib/active_support/notifications/instrumenter.rb:21:in `instrument'
activesupport (3.0.3) lib/active_support/notifications.rb:52:in `instrument'
actionpack (3.0.3) lib/action_controller/metal/instrumentation.rb:29:in `process_action'
actionpack (3.0.3) lib/action_controller/metal/rescue.rb:17:in `process_action'
actionpack (3.0.3) lib/abstract_controller/base.rb:120:in `process'
actionpack (3.0.3) lib/abstract_controller/rendering.rb:40:in `process'
actionpack (3.0.3) lib/action_controller/metal.rb:138:in `dispatch'
actionpack (3.0.3) lib/action_controller/metal/rack_delegation.rb:14:in `dispatch'
actionpack (3.0.3) lib/action_controller/metal.rb:178:in `block in action'
actionpack (3.0.3) lib/action_dispatch/routing/route_set.rb:62:in `call'
actionpack (3.0.3) lib/action_dispatch/routing/route_set.rb:62:in `dispatch'
actionpack (3.0.3) lib/action_dispatch/routing/route_set.rb:27:in `call'
rack-mount (0.6.14) lib/rack/mount/route_set.rb:148:in `block in call'
rack-mount (0.6.14) lib/rack/mount/code_generation.rb:93:in `block in recognize'
rack-mount (0.6.14) lib/rack/mount/code_generation.rb:82:in `optimized_each'
rack-mount (0.6.14) lib/rack/mount/code_generation.rb:92:in `recognize'
rack-mount (0.6.14) lib/rack/mount/route_set.rb:139:in `call'
actionpack (3.0.3) lib/action_dispatch/routing/route_set.rb:492:in `call'
warden (0.10.7) lib/warden/manager.rb:35:in `block in call'
warden (0.10.7) lib/warden/manager.rb:34:in `catch'
warden (0.10.7) lib/warden/manager.rb:34:in `call'
haml (3.0.25) lib/sass/plugin/rack.rb:41:in `call'
actionpack (3.0.3) lib/action_dispatch/middleware/best_standards_support.rb:17:in `call'
actionpack (3.0.3) lib/action_dispatch/middleware/head.rb:14:in `call'
rack (1.2.3) lib/rack/methodoverride.rb:24:in `call'
actionpack (3.0.3) lib/action_dispatch/middleware/params_parser.rb:21:in `call'
actionpack (3.0.3) lib/action_dispatch/middleware/flash.rb:182:in `call'
actionpack (3.0.3) lib/action_dispatch/middleware/session/abstract_store.rb:149:in `call'
actionpack (3.0.3) lib/action_dispatch/middleware/cookies.rb:295:in `call'
activerecord (3.0.3) lib/active_record/query_cache.rb:32:in `block in call'
activerecord (3.0.3) lib/active_record/connection_adapters/abstract/query_cache.rb:28:in `cache'
activerecord (3.0.3) lib/active_record/query_cache.rb:12:in `cache'
activerecord (3.0.3) lib/active_record/query_cache.rb:31:in `call'
activerecord (3.0.3) lib/active_record/connection_adapters/abstract/connection_pool.rb:353:in `call'
actionpack (3.0.3) lib/action_dispatch/middleware/callbacks.rb:46:in `block in call'
activesupport (3.0.3) lib/active_support/callbacks.rb:415:in `_run_call_callbacks'
actionpack (3.0.3) lib/action_dispatch/middleware/callbacks.rb:44:in `call'
rack (1.2.3) lib/rack/sendfile.rb:107:in `call'
actionpack (3.0.3) lib/action_dispatch/middleware/remote_ip.rb:48:in `call'
actionpack (3.0.3) lib/action_dispatch/middleware/show_exceptions.rb:46:in `call'
railties (3.0.3) lib/rails/rack/logger.rb:13:in `call'
rack (1.2.3) lib/rack/runtime.rb:17:in `call'
activesupport (3.0.3) lib/active_support/cache/strategy/local_cache.rb:72:in `call'
rack (1.2.3) lib/rack/lock.rb:11:in `block in call'
<internal:prelude>:10:in `synchronize'
rack (1.2.3) lib/rack/lock.rb:11:in `call'
actionpack (3.0.3) lib/action_dispatch/middleware/static.rb:30:in `call'
railties (3.0.3) lib/rails/application.rb:168:in `call'
railties (3.0.3) lib/rails/application.rb:77:in `method_missing'
railties (3.0.3) lib/rails/rack/debugger.rb:21:in `call'
railties (3.0.3) lib/rails/rack/log_tailer.rb:14:in `call'
rack (1.2.3) lib/rack/content_length.rb:13:in `call'
rack (1.2.3) lib/rack/handler/webrick.rb:52:in `service'
/Users/myname/.rvm/rubies/ruby-1.9.2-p0/lib/ruby/1.9.1/webrick/httpserver.rb:111:in `service'
/Users/myname/.rvm/rubies/ruby-1.9.2-p0/lib/ruby/1.9.1/webrick/httpserver.rb:70:in `run'
/Users/myname/.rvm/rubies/ruby-1.9.2-p0/lib/ruby/1.9.1/webrick/server.rb:183:in `block in start_thread'

我最近才使用过Omniauth，但您的跟踪显示您的oauth_助手中有类似的内容：

 def try_access_token
   begin
     ..
   rescue OAuth2::AccessDenied

   end
 end

如果是这种情况，请尝试将OAuth2:：AccessDenied更改为OAuth2:：Error。Oauth2:：Error提供了一个.code属性，您可以检查该属性以确定它是否是拒绝访问的响应

4.1文件：

---

5.0+文档：

我也有同样的问题

看看gem代码，这是因为Facebook的答案是HTTP代码400..599。 当400..599 e=错误。新响应 如果选择[：raise_errors]| |选项[：raise_errors]

遗憾的是，我的服务器与facebook之间的通信使用的是HTTPS，因此，我还无法截获有问题的请求

更新

我从Facebook上得到一个400错误：

OAuth Facebook平台无效\u请求必须使用活动访问令牌来查询有关当前用户的信息

更新2

这里有有趣的讨论：

---

我最终将oauth2回滚到0.4.1，我的FB登录和查询工作正常。

感谢您的回复。我编辑这个以删除堆栈跟踪，因为它混淆了我真正问题的目的。当我在控制台中执行上面列出的代码时，我将其作为输出：OAuth2:：Error Exception:OAuth2:：Error。我不知道如何将该错误分配给变量以检查.code属性，因为当我执行er=token.get'/me'时，er是nil。有什么想法吗？