BrockAllen.OAuth2.OAuth2Client.GetContext C# (CSharp) Method

        AuthorizationContext GetContext()
        {
            var ctx = HttpContext.Current;
            var cookie = ctx.Request.Cookies[AuthorizationContextCookieName];
            if (cookie == null) return null;

            var json = Encoding.UTF8.GetString(Unprotect(cookie.Value));
            var authCtx = AuthorizationContext.Parse(json);

            cookie = new HttpCookie(AuthorizationContextCookieName, ".");
            cookie.Secure = ctx.Request.IsSecureConnection;
            cookie.HttpOnly = true;
            cookie.Path = ctx.Request.ApplicationPath;
            cookie.Expires = DateTime.UtcNow.AddYears(-1);
            ctx.Response.Cookies.Add(cookie);

            return authCtx;
        }