@Override
    public boolean canVote(@NonNull final Geocache cache, @NonNull final LogType logType) {
        return Settings.isGCVoteLoginValid() && StringUtils.isNotBlank(cache.getGuid());
    }
Indicates whether voting is possible for this cache for this type of log entry

@param cache   cache to check
@param logType log type to check
main/src/main/java/cgeo/geocaching/connector/gc/GCConnector.java