在 Google 驱动器 API 中设置文件夹权限

Question

我在尝试创建文件夹并设置其权限时遇到以下错误。它会在不传递文件元数据中的权限的情况下工作。

但我想创建具有特定用户权限的文件夹，每个用户都有自己的 g-mail 帐户。我怎样才能做到这一点？谢谢！

错误信息：

代码：

using Google.Apis.Auth.OAuth2;
using Google.Apis.Drive.v3;
using Google.Apis.Drive.v3.Data;
using Google.Apis.Services;
using Google.Apis.Util.Store;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;


namespace DriveQuickstart
{
  class Program
  {
    // If modifying these scopes, delete your previously saved credentials
    // at ~/.credentials/drive-dotnet-quickstart.json
    static string[] Scopes = { DriveService.Scope.Drive };
    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.ReadWrite))
      {
        string credPath = System.Environment.GetFolderPath(
        System.Environment.SpecialFolder.Personal);

        credPath = Path.Combine(credPath, ".credentials/drive-dotnet-quickstart.json");

        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,
      });

      Permission perm = new Permission();

      perm.Type = "user";
      perm.EmailAddress = "anotheruser@gmail.com";
      perm.Role = "owner";

      IList<Permission> perms = new List<Permission>();

      perms.Add(perm);

      var fileMetadata = new Google.Apis.Drive.v3.Data.File()
      {
        Name = "Invoices",
        MimeType = "application/vnd.google-apps.folder",
        Description = "Blah blah " + System.DateTime.Now.Hour + ":" + System.DateTime.Now.Minute + ":" + System.DateTime.Now.Second,
        Permissions = perms
      };

      var request = service.Files.Create(fileMetadata);
      request.Fields = "id";
      var file = request.Execute();
      Console.WriteLine("Folder ID: " + file.Id);

      Console.Read();

    }
  }
}

Answer 1

确保您已通过正确的身份验证。看到这个 link.

Authentication is the key to everything when you want to access Google Drive API. If you want to be able to access data, you will need to be authenticated. There are two types of Authentication OAuth2 which will allow you to access another users data, and a service account which can be set up to access your own data.

您可以按照本教程中的示例代码进行操作：Google Drive file permissions。

/// <summary>
  /// Insert a new permission.
  /// </summary>
  /// <param name="service">Drive API service instance.</param>
  /// <param name="fileId">ID of the file to insert permission for.</param>
  /// <param name="who">
  /// User or group e-mail address, domain name or null for "default" type.
  /// </param>
  /// <param name="type">The value "user", "group", "domain" or "default".</param>
  /// <param name="role">The value "owner", "writer" or "reader".</param>
  /// <returns>The inserted permission, null is returned if an API error occurred</returns>
  public static Permission InsertPermission(DriveService service, String fileId, String who,String type, String role) {
    Permission newPermission = new Permission();
    newPermission.Value = value;
    newPermission.Type = type;
    newPermission.Role = role;
    try {
      return service.Permissions.Insert(newPermission, fileId).Execute();
    } catch (Exception e) {
      Console.WriteLine("An error occurred: " + e.Message);
    }
    return null;
  }

Answer 2

如您在 Documentation 中所见，Permissions[] 属性 而不是 表示为 writable 字段。因此，在创建文件之前在资源主体中填充 Permissions[] 不是正确的方法；就像错误指示 "resource body contains fields which are not directly writable".

那么如何创建共享文件夹呢？

您必须先创建文件夹，然后 Create the Permission 使用其 Id。

您可以将您的代码修改为：

var fileMetadata = new Google.Apis.Drive.v3.Data.File()
{
    Name = "Invoices",
    MimeType = "application/vnd.google-apps.folder",
    Description = "Blah blah " + System.DateTime.Now.Hour + ":" + System.DateTime.Now.Minute + ":" + System.DateTime.Now.Second
};

Permission perm = new Permission();
perm.Type = "user";
perm.EmailAddress = "anotheruser@gmail.com";
perm.Role = "owner";

var request = service.Files.Create(fileMetadata);
request.Fields = "id";

try 
{
    service.Permissions.Create(perm, request.Execute().Id).Execute(); //Creating Permission after folder creation.
}
catch (Exception e) 
{
    Console.WriteLine("An error occurred: " + e.Message);
}

在 Google 驱动器 API 中设置文件夹权限

Setting folder permissions in Google Drive API

.net

c#

folder-permissions

google-drive-api