桌面应用程序的多个谷歌访问权限
本文关键字：访问 访问权 权限 谷歌 应用程序 桌面 | 更新日期: 2023-09-27 17:57:11
我正在用C#编写一个桌面应用程序，该应用程序应该能够访问Google Apps"帐户"上的所有用户，并为每个用户检索日历事件。我已将日历 API 和管理 SDK 添加到我的"项目"中。
这两种方法（如下）都可以单独工作正常，但是当我想为两个 API 授权我的应用程序时，我收到以下权限错误。
权限不足 [403]
invalid_grant"， 描述："令牌已被吊销。
这让我想知道是否可以在应用程序启动时请求所有权限，而不是单独授权"功能"？
static string[] CalendarScopes = {CalendarService.Scope.CalendarReadonly };
static string[] DirectoryScopes = { DirectoryService.Scope.AdminDirectoryUserReadonly };
private static void GoogleCalendar()
{
UserCredential credential;
using (var stream = new FileStream("client_secret.json", FileMode.Open, FileAccess.Read))
{
string credPath = Environment.GetFolderPath(Environment.SpecialFolder.Personal);
credPath = Path.Combine(credPath, ".credentials");
credential = GoogleWebAuthorizationBroker.AuthorizeAsync(
GoogleClientSecrets.Load(stream).Secrets,
CalendarScopes,
"user",
CancellationToken.None,
new FileDataStore(credPath, true)).Result;
}
// Create Google Calendar API service.
var service = new CalendarService(new BaseClientService.Initializer()
{
HttpClientInitializer = credential,
ApplicationName = ApplicationName,
});
// Define parameters of request.
EventsResource.ListRequest request = service.Events.List("primary");
request.TimeMin = DateTime.Now;
request.ShowDeleted = false;
request.SingleEvents = true;
//request.MaxResults = 10;
request.OrderBy = EventsResource.ListRequest.OrderByEnum.StartTime;
// List events.
Events events = request.Execute();
Console.WriteLine("Upcoming events:");
if (events.Items != null && events.Items.Count > 0)
{
foreach (var eventItem in events.Items)
{
string when = eventItem.Start.DateTime.ToString();
if (String.IsNullOrEmpty(when))
{
when = eventItem.Start.Date;
}
Console.WriteLine("{0} ({1})", eventItem.Summary, when);
}
}
else
{
Console.WriteLine("No upcoming events found.");
}
Console.Read();
}
private static void GoogleDirectory()
{
UserCredential credential;
using (var stream =
new FileStream("client_secret.json", FileMode.Open, FileAccess.Read))
{
string credPath = Environment.GetFolderPath(
Environment.SpecialFolder.Personal);
credPath = Path.Combine(credPath, ".credentials");
credential = GoogleWebAuthorizationBroker.AuthorizeAsync(
GoogleClientSecrets.Load(stream).Secrets,
DirectoryScopes,
"user",
CancellationToken.None,
new FileDataStore(credPath, true)).Result;
Console.WriteLine("Credential file saved to: " + credPath);
}
// Create Directory API service.
var service = new DirectoryService(new BaseClientService.Initializer()
{
HttpClientInitializer = credential,
ApplicationName = ApplicationName,
});
// Define parameters of request.
UsersResource.ListRequest request = service.Users.List();
request.Customer = "my_customer";
request.MaxResults = 10;
request.OrderBy = UsersResource.ListRequest.OrderByEnum.Email;
// List users.
IList<User> users = null;
try
{
users = request.Execute().UsersValue;
}
catch (Exception ex)
{
throw;
}
Console.WriteLine("Users:");
if (users != null && users.Count > 0)
{
foreach (var userItem in users)
{
Console.WriteLine("{0} ({1})", userItem.PrimaryEmail,
userItem.Name.FullName);
}
}
else
{
Console.WriteLine("No users found.");
}
Console.Read();
}
尤里卡！我想出了，如何解决问题，其实很简单。
解决方案是"合并"这些方法。这意味着，我只需使用访问令牌检查一次凭据。我还在作用域数组中添加了目录。
static string[] Scopes = { CalendarService.Scope.CalendarReadonly, DirectoryService.Scope.AdminDirectoryUserReadonly };
private static void GoogleThis()
{
UserCredential credential;
using (var stream = new FileStream("client_secret.json", FileMode.Open, FileAccess.Read))
{
string credPath = Environment.GetFolderPath(Environment.SpecialFolder.Personal);
credPath = Path.Combine(credPath, ".credentials");
credential = GoogleWebAuthorizationBroker.AuthorizeAsync(
GoogleClientSecrets.Load(stream).Secrets,
Scopes,
"user",
CancellationToken.None,
new FileDataStore(credPath, true)).Result;
}
// Create Google Calendar API service.
var eventService = new CalendarService(new BaseClientService.Initializer()
{
HttpClientInitializer = credential,
ApplicationName = ApplicationName,
});
// Define parameters of request.
EventsResource.ListRequest eventRequest = eventService.Events.List("primary");
eventRequest.TimeMin = DateTime.Now;
eventRequest.ShowDeleted = false;
eventRequest.SingleEvents = true;
//request.MaxResults = 10;
eventRequest.OrderBy = EventsResource.ListRequest.OrderByEnum.StartTime;
// List events.
Events events = eventRequest.Execute();
Console.WriteLine("Upcoming events:");
if (events.Items != null && events.Items.Count > 0)
{
foreach (var eventItem in events.Items)
{
string when = eventItem.Start.DateTime.ToString();
if (String.IsNullOrEmpty(when))
{
when = eventItem.Start.Date;
}
Console.WriteLine("{0} ({1})", eventItem.Summary, when);
}
}
else
{
Console.WriteLine("No upcoming events found.");
}
// Create Directory API service.
var dirService = new DirectoryService(new BaseClientService.Initializer()
{
HttpClientInitializer = credential,
ApplicationName = ApplicationName,
});
// Define parameters of request.
UsersResource.ListRequest dirRequest = dirService.Users.List();
dirRequest.Customer = "my_customer";
dirRequest.MaxResults = 10;
dirRequest.OrderBy = UsersResource.ListRequest.OrderByEnum.Email;
// List users.
IList<User> users = null;
try
{
users = dirRequest.Execute().UsersValue;
Console.WriteLine("Users:");
if (users != null && users.Count > 0)
{
foreach (var userItem in users)
{
Console.WriteLine("{0} ({1})", userItem.PrimaryEmail,
userItem.Name.FullName);
}
}
else
{
Console.WriteLine("No users found.");
}
}
catch (Exception ex)
{
throw;
}
}