/// <summary>
/// Token自动刷新中间件，请务必放在UseAuthentication后，UseMVC前
/// </summary>
/// <param name="app"></param>
/// <param name="jupiterKeys"></param>
/// <param name="http"></param>
/// <returns></returns>
public static IApplicationBuilder UseAutoRefreshToken(this IApplicationBuilder app, JupiterKeys jupiterKeys, IHttpClientFactory http)
{
app.Use(async(context, next) =>
{
if (context.User.Identity.IsAuthenticated)
{
string refreshToken = CheckTokenExp(context, jupiterKeys, http);
if (refreshToken != default)
{
context.Response.Headers["Authorization"] = refreshToken;
}
}
await next();
});
return(app);
string CheckTokenExp(HttpContext context, JupiterKeys keys, IHttpClientFactory httpClient)
{
var iat = long.Parse(context.User.Claims.First(x => x.Type == "iat").Value);
//var now = DateTime.UtcNow.TotalSeconds
var iatDateTime = (new DateTime(1970, 1, 1, 0, 0, 0, DateTimeKind.Utc)).AddSeconds(iat);
var now = DateTime.UtcNow;
if ((now - iatDateTime) > TimeSpan.FromMinutes(5))
{
try
{
return(RefreshToken());
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
Console.WriteLine(ex.StackTrace);
return(default);
/// <summary>
/// 从本地文件中读取用来签发 Token 的 RSA Key
/// </summary>
/// <param name="filePath">存放密钥的文件夹路径</param>
/// <param name="withPrivate"></param>
/// <param name="keyParameters"></param>
/// <returns></returns>
private static bool TryGetKeyParameters(JupiterKeys keys, out RSAParameters keyParameters)
{
//keyParameters = default(RSAParameters);
keyParameters = JsonConvert.DeserializeObject <RSAParameters>(keys.PublicKey);
return(true);
}