ASPC.Marvel.CrimeAPI.SharePointHighTrustContext.RenewAccessTokenIfNeeded C# (CSharp) Метод

        private static void RenewAccessTokenIfNeeded(ref Tuple<string, DateTime> accessToken, Func<string> tokenRenewalHandler)
        {
            if (IsAccessTokenValid(accessToken))
            {
                return;
            }

            DateTime expiresOn = DateTime.UtcNow.Add(TokenHelper.HighTrustAccessTokenLifetime);

            if (TokenHelper.HighTrustAccessTokenLifetime > AccessTokenLifetimeTolerance)
            {
                // Make the access token get renewed a bit earlier than the time when it expires
                // so that the calls to SharePoint with it will have enough time to complete successfully.
                expiresOn -= AccessTokenLifetimeTolerance;
            }

            accessToken = Tuple.Create(tokenRenewalHandler(), expiresOn);
        }