OAuth2 :: doorkeeper错误

Question

每当我尝试向门卫提供商进行身份验证时，总是会遇到以下错误

invalid_grant: The provided authorization grant is invalid, expired, revoked, does not match the redirection URI used in the authorization request, or was issued to another client. {"error":"invalid_grant","error_description":"The provided authorization grant is invalid, expired, revoked, does not match the redirection URI used in the authorization request, or was issued to another client."}

我尝试了与其他门卫客户端，但仍然有相同的错误

门卫客户：

1. https://github.com/doorkeeper-gem/doorkeeper-devise-client.git
2. http://dev.mikamai.com/post/112508735689/oauth2-on-rails-the-client-application

门卫提供者：

https://github.com/doorkeeper-gem/doorkeeper-provider-app.git

Answer 1

我通过将omniauth-oauth2 gem版本降级到此处提到的1.3.1来解决-https: //github.com/intridea/omniauth-oauth2/issues/81

Answer 2

尽管降级为gem 'omniauth-oauth2', '~> 1.3.1'可以确认gem 'omniauth-oauth2', '~> 1.3.1'是一个解决方案，但在Doorkeeper的Create-a-OmniAuth-strategy-for-your-provider Wiki页面中 ，提到在实现中门卫的OmniAuth策略应显示以下方法：

  # https://github.com/intridea/omniauth-oauth2/issues/81
  def callback_url
    full_host + script_name + callback_path
  end

在提到的omn​​iauth-oauth2问题＃81中进行了长时间的讨论

当我尝试通过使用基于Rails 5 Devise的客户端应用程序来测试基于Rails 5 Devise的Doorkeeper Provider时，我个人遇到了所报告的错误，以允许提供商的用户在我的客户端应用程序上连接其帐户。

在前端设备OmniAuth：OmniauthCallbacksController上的我的OmniAuth::Strategies::Doorkeeper缺少上述方法时，正在闪烁消息“ 无效凭据”，并且在客户端应用服务器日志中看到以下错误：

  Started GET "/users/auth/doorkeeper" for 127.0.0.1 at 2017-08-22 17:45:02 +0530
  I, [2017-08-22T17:45:02.386866 #14535]  INFO -- omniauth: (doorkeeper) Request phase initiated.
  Started GET "/users/auth/doorkeeper/callback?code=1b833bcc09651f98b0424a7afb1e60bd50fdcc765daf7d499bcefb5554457187&state=c215fd707ecd71c6ad0f6b5e58fa0d2da7210d86946d41e3" for 127.0.0.1 at 2017-08-22 17:45:03 +0530
  I, [2017-08-22T17:45:03.506424 #14535]  INFO -- omniauth: (doorkeeper) Callback phase initiated.
  E, [2017-08-22T17:45:03.523737 #14535] ERROR -- omniauth: (doorkeeper) Authentication failure! invalid_credentials: OAuth2::Error, invalid_grant: The provided authorization grant is invalid, expired, revoked, does not match the redirection URI used in the authorization request, or was issued to another client.
  {"error":"invalid_grant","error_description":"The provided authorization grant is invalid, expired, revoked, does not match the redirection URI used in the authorization request, or was issued to another client."}
  Processing by Users::OmniauthCallbacksController#failure as HTML
    Parameters: {"code"=>"1b833bcc09651f98b0424a7afb1e60bd50fdcc765daf7d499bcefb5554457187", "state"=>"c215fd707ecd71c6ad0f6b5e58fa0d2da7210d86946d41e3"}
  Redirected to http://localhost:5000/
  Completed 302 Found in 0ms (ActiveRecord: 0.0ms)

因此，将该策略添加到策略中可以视为替代解决方案。

谢谢。