Ruby 2.2.0谷歌硬盘OAuth刷新

我正在尝试在ruby中设置一个命令行备份应用程序，它使用Oauth访问Google Drive。我已经在帐户中设置了所有内容，创建了我的客户ID和密码。我似乎记得以前这样做过，但找不到代码。在我思考之前，我使用了这个答案：

我已经创建了一个类来处理Google Drive的东西，然后是应用程序主文件，如果将其作为参数“硬”提供，则将执行初始设置，您必须将链接复制并粘贴到web浏览器中，以获取代码，然后您可以将其粘贴到CLI中，以获取初始访问令牌和刷新令牌。这是可行的，遵循这些步骤，我的列表方法（如果没有被注释掉）可以正确地列出Google Drive中的所有内容。当我进行初始设置时，我手动将访问和刷新令牌复制到.access\u令牌和.refresh\u令牌，这些令牌将加载到代码中

不起作用的是刷新令牌，我知道我需要这样做，否则它将过期，这意味着我将不得不再次进行初始设置，这显然是一种痛苦（并且不适合CRON作业）。我在运行@auth.refresh时遇到以下错误

/home/user/.rvm/gems/ruby-2.2.0/gems/signet-0.6.0/lib/signet/oauth_2/client.rb:947:in `fetch_access_token': Authorization failed.  Server message: (Signet::AuthorizationError)
{
  "error" : "invalid_grant"
}
    from /home/user/.rvm/gems/ruby-2.2.0/gems/signet-0.6.0/lib/signet/oauth_2/client.rb:964:in `fetch_access_token!'
    from /home/user/.rvm/gems/ruby-2.2.0/gems/signet-0.6.0/lib/signet/oauth_2/client.rb:981:in `refresh!'
    from /home/user/Development/BackupBadger/Sources/Mechanisms/GoogleDriveMechanism.rb:62:in `connect'
    from BackupBadger.rb:9:in `<main>'

我的班级谷歌硬盘

module BackupBadger

  require 'google/api_client'
  require 'google_drive'
  require 'pp'

  require File.join($sources,'Mechanism.rb')

  class GoogleDriveMechanism
    def initialize()
      @client = Google::APIClient.new(
        :application_name => 'Backup Badger',
        :application_version => '0.0.1'
      )
      @access_token_path = File.join($root,'.access_token')
      @refresh_token_path = File.join($root,'.refresh_token')
      @auth = nil
      @access_token = File.open(@access_token_path, "rb").read
      @refresh_token = File.open(@refresh_token_path, "rb").read
      @session = nil
      @client_id = 'CLIENT_ID'
      @client_secret = 'CLIENT_SECRET'
      @redirect_uri = 'urn:ietf:wg:oauth:2.0:oob'
      @scope =  "https://www.googleapis.com/auth/drive " +
                "https://spreadsheets.google.com/feeds/"
    end

    # Call this to do the initial setup, which requires pasting a url into a web broswer
    def hard_setup
      @auth = @client.authorization
      @auth.client_id = @client_id
      @auth.client_secret = @client_secret
      @auth.scope = @scope
      @auth.redirect_uri = @redirect_uri
      print("1. Open this page:\n%s\n\n" % @auth.authorization_uri)
      print("2. Enter the authorization code shown in the page: ")
      @auth.code = $stdin.gets.chomp
      @auth.fetch_access_token!
      @access_token = @auth.access_token

      system'clear'
      print "Save your access token\n\n"
      print @access_token  
      print "\nSave your refresh token\n\n"
      print @auth.refresh_token 
    end

    def connect
      @auth = @client.authorization
      @auth.client_id = @client_id
      @auth.client_secret = @client_secret
      @auth.scope = @scope
      @auth.redirect_uri = @redirect_uri
      @auth.refresh_token = @refresh_token

      puts @access_token
      puts @refresh_token

      # Error is here
      @auth.refresh!

      @refresh_token = @auth.refresh_token
      @access_token = @auth.access_token

      File.write(@refresh_token_path, @refresh_token) if @refresh_token
      File.write(@access_token_path, @access_token) if @access_token

      puts @access_token
      puts @refresh_token
    end

    def list
      @session = GoogleDrive.login_with_oauth(@access_token)
      for file in @session.files
         p file.title
      end
    end
  end
end

如果是tl；dr只是“如何使用刷新令牌来获取新的访问令牌”，答案是

---

我不会粘贴代码，因为代码可能会更改，但本质上，您只需发布到Google URL，JSON响应是一个全新的访问令牌。

谢谢，我已经看到了这一点。然而，我的问题更具体地针对google drive Ruby gem。这是我的理解，呼吁刷新！方法将获取我的新刷新令牌。这就是我所质疑的。是的，我可以自己写一篇博文，但是为什么当一块宝石存在的时候我会这么做呢。imho的答案是，如果你已经这样做了，你就不必把这个问题贴到SO上去猜测gem是如何工作的，然后希望谷歌将来不要改变这个库来做一些不同的事情。

module BackupBadger

  require 'google/api_client'
  require 'google_drive'
  require 'pp'

  require File.join($sources,'Mechanism.rb')

  class GoogleDriveMechanism
    def initialize()
      @client = Google::APIClient.new(
        :application_name => 'Backup Badger',
        :application_version => '0.0.1'
      )
      @access_token_path = File.join($root,'.access_token')
      @refresh_token_path = File.join($root,'.refresh_token')
      @auth = nil
      @access_token = File.open(@access_token_path, "rb").read
      @refresh_token = File.open(@refresh_token_path, "rb").read
      @session = nil
      @client_id = 'CLIENT_ID'
      @client_secret = 'CLIENT_SECRET'
      @redirect_uri = 'urn:ietf:wg:oauth:2.0:oob'
      @scope =  "https://www.googleapis.com/auth/drive " +
                "https://spreadsheets.google.com/feeds/"
    end

    # Call this to do the initial setup, which requires pasting a url into a web broswer
    def hard_setup
      @auth = @client.authorization
      @auth.client_id = @client_id
      @auth.client_secret = @client_secret
      @auth.scope = @scope
      @auth.redirect_uri = @redirect_uri
      print("1. Open this page:\n%s\n\n" % @auth.authorization_uri)
      print("2. Enter the authorization code shown in the page: ")
      @auth.code = $stdin.gets.chomp
      @auth.fetch_access_token!
      @access_token = @auth.access_token

      system'clear'
      print "Save your access token\n\n"
      print @access_token  
      print "\nSave your refresh token\n\n"
      print @auth.refresh_token 
    end

    def connect
      @auth = @client.authorization
      @auth.client_id = @client_id
      @auth.client_secret = @client_secret
      @auth.scope = @scope
      @auth.redirect_uri = @redirect_uri
      @auth.refresh_token = @refresh_token

      puts @access_token
      puts @refresh_token

      # Error is here
      @auth.refresh!

      @refresh_token = @auth.refresh_token
      @access_token = @auth.access_token

      File.write(@refresh_token_path, @refresh_token) if @refresh_token
      File.write(@access_token_path, @access_token) if @access_token

      puts @access_token
      puts @refresh_token
    end

    def list
      @session = GoogleDrive.login_with_oauth(@access_token)
      for file in @session.files
         p file.title
      end
    end
  end
end