public bool ContainsBadWord(ChatMessage message)
{
var isInfraction = wordFilterService.GetWordFilters().Any(x => message.Message.Contains(x.Word));
if (isInfraction)
{
message.AddInfraction(new MessageInfraction
{
InfractionType = MessageInfractionTypes.ContainsBadWord
});
}
return(isInfraction);
}
public bool HasTooManyDuplicateCharacters(ChatMessage message)
{
var isInfraction = Regex.IsMatch(message.Message, @"(.)\1{10,}");
if (isInfraction)
{
message.AddInfraction(new MessageInfraction
{
InfractionType = MessageInfractionTypes.HasTooManyDuplicateCharacters
});
}
return(isInfraction);
}
public bool ContainsWordTooLong(ChatMessage message)
{
var isInfraction = message.Message.Split(' ').Any(x => x.Length >= 20);
if (isInfraction)
{
message.AddInfraction(new MessageInfraction
{
InfractionType = MessageInfractionTypes.ContainsWordTooLong
});
}
return(isInfraction);
}
/// <summary>
/// Author has already posted this same message several times in a short period of time
/// </summary>
/// <param name="message"></param>
/// <returns></returns>
public bool MessageRepeatedTooOften(ChatMessage message)
{
var startDate = DateTime.UtcNow.AddMinutes(-60);
var isInfraction = db.Messages
.Where(x => x.Date > startDate)
.Count(x => x.AuthorId == message.AuthorId && x.Message == message.Message) > 5;
if (isInfraction)
{
message.AddInfraction(new MessageInfraction
{
InfractionType = MessageInfractionTypes.MessageRepeatedTooOften
});
}
return(isInfraction);
}
public bool HasTooManyDuplicateWords(ChatMessage message)
{
var wordGroups = message.Message.Split(' ')
.GroupBy(x => new { x })
.Select(s => new { s.Key, Count = s.Count() });
// TODO: max duplicate words should be configurable
var isInfraction = wordGroups.Any(x => x.Count >= 5);
if (isInfraction)
{
message.AddInfraction(new MessageInfraction
{
InfractionType = MessageInfractionTypes.HasTooManyDuplicateWords
});
}
return(isInfraction);
}