OAuth2 gem v 0.5.0 出错

Question

我收到以下代码的非常不透明的错误：

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::Error 异常：OAuth2::Error

此代码适用于 v0.4.1，但适用于 v0.5.0

这是堆栈跟踪：

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'

Answer 1

我最近只使用过Omniauth，但看起来您的跟踪表明您的 oauth_helper 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响应。

4.1 文档：http://rubydoc.info/gems/oauth2/0.4.1/frames

5.0+ 文档：http://rubydoc.info/gems/oauth2/0.5.0/frames

Answer 2

我也有同样的问题。

查看 gem 代码，这是因为 Facebook 的答案是 HTTP 代码 400..599。 当 400..599 e = Error.new（响应） 提高 e if opts[: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，我还无法拦截有问题的请求。

更新

我从 Facebook 收到 400 错误：

OAuth "Facebook Platform" "invalid_request" "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

在这里进行有趣的讨论：Facebook access_token invalid?

我最终将 oauth2 回滚到 0.4.1，并且我的 FB 登录和查询工作正常。