通過API上傳到Google雲端硬盤的「禁止」錯誤

Question

我一直在玩.NET Google Drive API，我可以通過API成功連接，驗證並獲取文件列表（我們的Google雲端硬盤中已經有數千個文件帳戶，通過網絡直接上傳）。

但是，在嘗試寫入數據時遇到了兩個非常類似的錯誤：如果我嘗試上載測試文件（test.txt），則出現403「禁止」錯誤。要創建一個新的文件夾給我一個類似的錯誤：

Exception thrown: 'Google.GoogleApiException' in Google.Apis.dll

Additional information: Google.Apis.Requests.RequestError

Insufficient Permission [403] Location[ - ] Reason[insufficientPermissions] Domain[global]

我已經遵循「快速入門」教程，以及其他類似的問題在這裏，但我看不出還有什麼我必須做的。這是我上傳文件的示例代碼;我需要在代碼或Google雲端硬盤帳戶本身中添加/更改哪些內容以允許上傳文件和創建文件夾？

class GDriveTest 
{ 
    static string[] Scopes = { DriveService.Scope.Drive,DriveService.Scope.DriveFile }; 
    static string ApplicationName = "Drive API .NET Quickstart"; 

    static void Main(string[] args) 
    { 
     UserCredential credential; 

     using (var stream = 
      new FileStream("client_secret.json", FileMode.Open, FileAccess.Read)) 
     { 
      string credPath = System.Environment.GetFolderPath(
       System.Environment.SpecialFolder.Personal); 
      credPath = Path.Combine(credPath, ".credentials/drive-dotnet-quickstart"); 

      credential = GoogleWebAuthorizationBroker.AuthorizeAsync(
       GoogleClientSecrets.Load(stream).Secrets, 
       Scopes, 
       "user", 
       CancellationToken.None, 
       new FileDataStore(credPath, true)).Result; 
      Console.WriteLine("Credential file saved to: " + credPath); 
     } 

     // Create Drive API service. 
     var service = new DriveService(new BaseClientService.Initializer() 
     { 
      HttpClientInitializer = credential, 
      ApplicationName = ApplicationName, 
     }); 

     UploadSingleFile(service); 
    } 

    private static void UploadSingleFile(DriveService service) 
    { 
     File body = new File(); 
     body.Title = "My document"; 
     body.Description = "A test document"; 
     body.MimeType = "text/plain"; 

     byte[] byteArray = System.IO.File.ReadAllBytes("test.txt"); 
     System.IO.MemoryStream stream = new System.IO.MemoryStream(byteArray); 

     FilesResource.InsertMediaUpload request = service.Files.Insert(body, stream, "text/plain"); 
     request.Upload(); 

     File file = request.ResponseBody; 
     Console.WriteLine("File id: " + file.Id); 
     Console.ReadLine(); 
    } 
} 

Answer 1

問題可能範圍您請求

DriveService.Scope.DriveFile, // view and manage files created by this app 

嘗試

DriveService.Scope.Drive, // view and manage your files and documents 

我的代碼：

/// <summary> 
     /// Authenticate to Google Using Oauth2 
     /// Documentation https://developers.google.com/accounts/docs/OAuth2 
     /// </summary> 
     /// <param name="clientId">From Google Developer console https://console.developers.google.com</param> 
     /// <param name="clientSecret">From Google Developer console https://console.developers.google.com</param> 
     /// <param name="userName">The user to authorize.</param> 
     /// <returns>a valid DriveService</returns> 
     public static DriveService AuthenticateOauth(string clientId, string clientSecret, string userName) 
     { 
      if (string.IsNullOrEmpty(clientId)) 
       throw new Exception("clientId is required."); 
      if (string.IsNullOrEmpty(clientSecret)) 
       throw new Exception("clientSecret is required."); 
      if (string.IsNullOrEmpty(userName)) 
       throw new Exception("userName is required for datastore."); 


      string[] scopes = new string[] { DriveService.Scope.Drive}; 

      try 
      { 

       string credPath = System.Environment.GetFolderPath(System.Environment.SpecialFolder.Personal); 
       credPath = Path.Combine(credPath, ".credentials/Drive"); 

       // here is where we Request the user to give us access, or use the Refresh Token that was previously stored in %AppData% 
       UserCredential credential = GoogleWebAuthorizationBroker.AuthorizeAsync(new ClientSecrets { ClientId = clientId, ClientSecret = clientSecret } 
                          , scopes 
                          , userName 
                          , CancellationToken.None 
                          , new FileDataStore(credPath, true)).Result; 

       var service = new DriveService(new BaseClientService.Initializer() 
       { 
        HttpClientInitializer = credential, 
        ApplicationName = "Drive Authentication Sample", 
       }); 
       return service; 
      } 
      catch (Exception ex) 
      { 
       Console.WriteLine(ex.InnerException); 
       throw ex; 
      } 

     } 

/// <summary> 
     /// Insert a new file. 
     /// Documentation: https://developers.google.com/drive//v2/files/insert 
     /// </summary> 
     /// <param name="service">Valid authentcated DriveService</param> 
     /// <param name="body">Valid File Body</param> 
     /// <returns>File </returns> 
     public static File Insert(DriveService service, File body) 
     { 
      //Note Genrate Argument Exception (https://msdn.microsoft.com/en-us/library/system.argumentexception(loband).aspx) 
      try 
      { 
      return   service.Files.Insert(body).Execute(); 
      } 
      catch (Exception ex) 
      { 
       Console.WriteLine("Request Failed " + ex.Message); 
       throw ex; 
      } 
     } 

    private static string GetMimeType(string fileName) 
     { 
      string mimeType = "application/unknown"; 
      string ext = System.IO.Path.GetExtension(fileName).ToLower(); 
      Microsoft.Win32.RegistryKey regKey = Microsoft.Win32.Registry.ClassesRoot.OpenSubKey(ext); 
      if (regKey != null && regKey.GetValue("Content Type") != null) 
       mimeType = regKey.GetValue("Content Type").ToString(); 
      return mimeType; 
     } 

執行

var driveService = StandardGoogleAuth.AuthenticateOauth("xxxxx.apps.googleusercontent.com", "uxpj6hx1H2N5BFqdnaNhIbie", "user"); 

       var uploadfileName = @"C:\Temp\test.txt"; 
       File body = new File(); 
       body.Title = System.IO.Path.GetFileName(uploadfileName); 
       body.Description = "File uploaded by Diamto Drive Sample"; 
       body.MimeType = GetMimeType(uploadfileName); 
       body.Parents = new List<ParentReference>() { new ParentReference() { Id = "root" } }; 

       // File's content. 
       byte[] byteArray = System.IO.File.ReadAllBytes(uploadfileName); 
       System.IO.MemoryStream stream = new System.IO.MemoryStream(byteArray); 

      var result = FilesSample.Insert(driveService,body); 

Answer 2

修改範圍將不會自動更新到TOKENRESPONSE用戶文件中。您必須重新生成該文件。

搜索「drive-dotnet-quickstart.json」並從其中刪除「Google.Apis.Auth.OAuth2.Responses.TokenResponse-user」。 然後運行您的代碼來重新生成該文件。