我正在尝试使用Google+ API访问经过身份验证的用户的信息。我已经从其中一个示例中复制了一些代码,效果很好(如下所示),但是我无法以一种可以在应用程序启动之间重用 token 的方式使其工作。
我 try catch “RefreshToken”属性并使用provider.RefreshToken()
(以及其他方法),始终获得400 Bad Request
响应。
有谁知道如何使这项工作,或知道我在哪里可以找到一些 sample ? Google Code site似乎不包含此内容:-(
class Program
{
private const string Scope = "https://www.googleapis.com/auth/plus.me";
static void Main(string[] args)
{
var provider = new NativeApplicationClient(GoogleAuthenticationServer.Description);
provider.ClientIdentifier = "BLAH";
provider.ClientSecret = "BLAH";
var auth = new OAuth2Authenticator<NativeApplicationClient>(provider, GetAuthentication);
var plus = new PlusService(auth);
plus.Key = "BLAH";
var me = plus.People.Get("me").Fetch();
Console.WriteLine(me.DisplayName);
}
private static IAuthorizationState GetAuthentication(NativeApplicationClient arg)
{
// Get the auth URL:
IAuthorizationState state = new AuthorizationState(new[] { Scope });
state.Callback = new Uri(NativeApplicationClient.OutOfBandCallbackUrl);
Uri authUri = arg.RequestUserAuthorization(state);
// Request authorization from the user (by opening a browser window):
Process.Start(authUri.ToString());
Console.Write(" Authorization Code: ");
string authCode = Console.ReadLine();
Console.WriteLine();
// Retrieve the access token by using the authorization code:
return arg.ProcessUserAuthorization(authCode, state);
}
}
最佳答案
这是一个例子。确保添加一个名为RefreshToken的字符串设置并引用System.Security或找到另一种安全存储刷新 token 的方法。
private static byte[] aditionalEntropy = { 1, 2, 3, 4, 5 };
private static IAuthorizationState GetAuthorization(NativeApplicationClient arg)
{
// Get the auth URL:
IAuthorizationState state = new AuthorizationState(new[] { PlusService.Scopes.PlusMe.GetStringValue() });
state.Callback = new Uri(NativeApplicationClient.OutOfBandCallbackUrl);
string refreshToken = LoadRefreshToken();
if (!String.IsNullOrWhiteSpace(refreshToken))
{
state.RefreshToken = refreshToken;
if (arg.RefreshToken(state))
return state;
}
Uri authUri = arg.RequestUserAuthorization(state);
// Request authorization from the user (by opening a browser window):
Process.Start(authUri.ToString());
Console.Write(" Authorization Code: ");
string authCode = Console.ReadLine();
Console.WriteLine();
// Retrieve the access token by using the authorization code:
var result = arg.ProcessUserAuthorization(authCode, state);
StoreRefreshToken(state);
return result;
}
private static string LoadRefreshToken()
{
return Encoding.Unicode.GetString(ProtectedData.Unprotect(Convert.FromBase64String(Properties.Settings.Default.RefreshToken), aditionalEntropy, DataProtectionScope.CurrentUser));
}
private static void StoreRefreshToken(IAuthorizationState state)
{
Properties.Settings.Default.RefreshToken = Convert.ToBase64String(ProtectedData.Protect(Encoding.Unicode.GetBytes(state.RefreshToken), aditionalEntropy, DataProtectionScope.CurrentUser));
Properties.Settings.Default.Save();
}