public static Tek MapToTek(this PostTeksItemArgs value)
{
return(new Tek
{
KeyData = Convert.FromBase64String(value.KeyData),
RollingPeriod = value.RollingPeriod,
RollingStartNumber = value.RollingStartNumber,
});
}
public string[] Valid(PostTeksItemArgs value)
{
if (value == null)
{
return new [] { "Value is null." }
}
;
var result = new List <string>();
//The following check has to be removed until the iOS bug that returns TEKs regardless of age is fixed.
//var earliestAcceptedDateFromDevices = _DateTimeProvider.Snapshot.Date - TimeSpan.FromDays(_Config.MaxAgeDays);
//var rollingStartMin = Math.Max(_Config.RollingStartNumberMin, earliestAcceptedDateFromDevices.ToRollingStartNumber());
var rollingStartMin = _Config.RollingStartNumberMin;
var rollingStartToday = _DateTimeProvider.Snapshot.Date.ToRollingStartNumber();
if (!(rollingStartMin <= value.RollingStartNumber && value.RollingStartNumber <= rollingStartToday))
{
result.Add($"RollingStartNumber out of range - {value.RollingStartNumber}.");
}
if (!(UniversalConstants.RollingPeriodRange.Lo <= value.RollingPeriod && value.RollingPeriod <= UniversalConstants.RollingPeriodRange.Hi))
{
result.Add($"RollingPeriod out of range - {value.RollingPeriod}.");
}
if (string.IsNullOrEmpty(value.KeyData))
{
result.Add("KeyData is empty.");
}
var buffer = new Span <byte>(new byte[UniversalConstants.DailyKeyDataByteCount]);
if (!Convert.TryFromBase64String(value.KeyData, buffer, out var count))
{
result.Add("KeyData is not valid base64.");
}
if (UniversalConstants.DailyKeyDataByteCount != count)
{
result.Add($"KeyData length incorrect - {count}.");
}
return(result.ToArray());
}
}