public DateTime?GetDate(string name, KdbxSerializationParameters parameters, bool required = false)
{
string dtString = GetString(name, required);
if (String.IsNullOrEmpty(dtString))
{
return(null);
}
// KeePass interop weirdness - they trim the UTC timezone specifier off, then parse,
// then convert to local time. When serializing they convert back to UTC and add the "Z".
// Can't say why, but mimicing the behavior to avoid bugs.
if (dtString.EndsWith("Z"))
{
dtString = dtString.Substring(0, dtString.Length - 1);
}
DateTime dt;
if (DateTime.TryParse(dtString, out dt))
{
dt = dt.ToLocalTime();
return(dt);
}
else if (parameters.UseBase64DateTimeEncoding)
{
// Try to parse the DateTime as a base64 string
IBuffer data = CryptographicBuffer.DecodeFromBase64String(dtString);
if (data.Length == 8)
{
long elapsedSeconds = (long)ByteHelper.BufferToLittleEndianUInt64(data.ToArray(), 0);
return(new DateTime(elapsedSeconds * TimeSpan.TicksPerSecond, DateTimeKind.Utc));
}
}
// This used to be a parse failure, but due to the strangeness of parsing dates, and because KeePass only considers
// this an assertion failure with a fallback, we will also fallback.
DebugHelper.Assert(false, $"Investigate why this DateTime failed to parse: {dtString}");
return(DateTime.Now);
}