private async Task StoreMessage(MessageLog message)
{
_messages.Add(message);
await _dbContext.InsertLogMessage(message);
}
public async void Analyze(Message message)
{
if (!ShouldMonitorChannel(message.Channel))
{
Log.Verbose("Skipping message from channel {channel}", message.Channel.Name);
return;
}
float spamValue = Heuristics.CalculateSpamValue(message);
Log.Logger.Information("Message from {user} had a spam rating of : {rating} ({heuristictype})",
message.User.Name, spamValue, Heuristics.AggregateMethod);
List <string> heuristicLog = new List <string>();
foreach (SpamHeuristic heuristic in Heuristics.Heuristics.Keys)
{
string heuristicName = heuristic.GetType().Name;
float individualSpamValue = heuristic.CalculateSpamValue(message, false);
float weight = Heuristics.Heuristics[heuristic];
Log.Logger.Information("\t {heuristic}: {rating} ({weight}wt)", heuristicName, individualSpamValue, weight);
heuristicLog.Add($"{heuristic}: {individualSpamValue} ({weight}wt)");
}
var toLog = new MessageLog
{
SenderName = message.User.Name,
Message = message.Text,
SentTime = message.Timestamp,
SpamValue = spamValue,
Channel = message.Channel.Name,
Server = new DiscordServerInfo
{
Name = message.Server.Name,
Icon = message.Server.IconUrl,
Id = message.Server.Id.ToString(),
UserCount = message.Server.UserCount
},
Details = heuristicLog,
Formula = Heuristics.AggregateMethod.ToString()
};
foreach (SpamTrigger trigger in Triggers.OrderByDescending(d => d.TriggerScore))
{
if (!trigger.ShouldTrigger(spamValue))
{
continue;
}
Log.Logger.Information("Message from {user} caused a trigger: {trigger} ({messagescore}/{triggerscore})",
message.User.Name, trigger.GetType().Name, spamValue, trigger.TriggerScore);
toLog.Trigger = $"{trigger.GetType().Name}: out of {trigger.TriggerScore}";
try
{
trigger.Trigger(_client, message);
}
catch (AggregateException ex)
{
Log.Logger.Error(ex.InnerExceptions.FirstOrDefault(), "Tried to perform trigger {trigger}, but got an error", trigger.GetType().Name);
}
catch (Exception ex)
{
Log.Logger.Error(ex, "Tried to perform trigger {trigger}, but got an error", trigger.GetType().Name);
}
if (!trigger.PassThrough)
{
break;
}
}
await StoreMessage(toLog);
}