Google Drive API/SDK 转让所有权

我试图将特定文件的所有权转移给另一个用户。

总代码

foreach (Permission permission in RetrievePermissions(service(), file.Id))
        {
            if (permission.Role == EnumClass.PERMISSIONROLE.OWNER.ToText())
            {
                //Downgrade Owner Writer
                UpdatePermission(service(), file.Id, permission.Id, EnumClass.PERMISSIONROLE.WRITER);
                //Create New Writer
                InsertPermission(service(), file.Id, ownerMail, EnumClass.PERMISSIONROLE.WRITER);

                foreach (Permission thisPermission in RetrievePermissions(service(), file.Id))
                {   //Update Writer to Owner
                    if (thisPermission.Name == "Person X")
                    {
                        //Set Person X as new Owner
                        UpdatePermission(service(), file.Id, thisPermission.Id, EnumClass.PERMISSIONROLE.OWNER);
                    }
                }
            }
        }

更新权限方法

public static Permission UpdatePermission(DriveService service, String fileId, String permissionId, EnumClass.PERMISSIONROLE ROLE)
    {
        try
        {
            // First retrieve the permission from the API.
            Permission permission = service.Permissions.Get(fileId, permissionId).Execute();
            permission.Role = ROLE.ToText();

            //if new Role is Owner, Downgrad current Owner
            if (ROLE == EnumClass.PERMISSIONROLE.OWNER)
            {
                var myPermission = service.Permissions.Update(permission, fileId, permissionId);
                myPermission.TransferOwnership = true;

                foreach (Permission per in RetrievePermissions(service, fileId))
                {
                    if (per.Role == EnumClass.PERMISSIONROLE.OWNER.ToText())
                    {
                        per.Role = EnumClass.PERMISSIONROLE.WRITER.ToText();
                    }
                }
            }
            return service.Permissions.Update(permission, fileId, permissionId).Execute();
        }

        catch (Exception e)
        {
            Console.WriteLine("An error occurred: " + e.Message);
        }
        return null;

插入权限方法

 public static Permission InsertPermission(DriveService service, String fileId, String userMail, EnumClass.PERMISSIONROLE Role)
    {
        Permission newPermission = new Permission();
        newPermission.Name = userMail;
        newPermission.Value = userMail;
        newPermission.Type = EnumClass.PERMISSIONTYPE.USER.ToText();
        newPermission.Role = Role.ToText();

        try
        {
            return service.Permissions.Insert(newPermission, fileId).Execute();
        }
        catch (Exception InsertError)
        {
            Console.WriteLine("Error inserting permission for " + userMail + Environment.NewLine + "Error on Insert: " + InsertError.Message);
        }
        return null;
    }

Error

Google.Apis.Requests.RequestError 权限不足 文件 [403] 错误 [ 消息 [此文件的权限不足] 位置[ - ] 原因[禁止] 域[全局] ]

我目前使用的是 ServiceAccount。
感谢所有帮助！

您是否尝试过使用模仿？

var initializer = new ServiceAccountCredential.Initializer(ServiceAccountEmail)
{
    Scopes = new[] { DriveService.Scope.Drive },
    User = "[email protected]"
};