public async Task <bool> AntiIp(LithiumContext context, List <GuildModel.Guild.antispams.IgnoreRole> exemptcheck)
{
var guild = context.Server;
var BypassIP = exemptcheck.Any(x => x.Privacy);
if (!BypassIP)
{
if (Regex.IsMatch(context.Message.Content, @"^((25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)$"))
{
await context.Message?.DeleteAsync();
var emb = new EmbedBuilder
{
Title = $"{context.User} - This server does not allow you to post IP addresses"
};
await context.Channel.SendMessageAsync("", false, emb.Build());
if (guild.Antispam.Privacy.WarnOnDetection)
{
await guild.AddWarn("AutoMod - Anti IP", context.User as IGuildUser, context.Client.CurrentUser, context.Channel);
guild.Save();
}
return(true);
}
}
return(false);
}
public bool CheckHidden(LithiumContext context)
{
if (context.Guild == null)
{
return(false);
}
var guild = context.Server;
if (guild.Settings.DisabledParts.BlacklistedCommands.Any() || guild.Settings.DisabledParts.BlacklistedModules.Any())
{
CommandInfo CMDCheck = null;
var argPos = 0;
var cmdSearch = _commands.Search(context, argPos);
if (cmdSearch.IsSuccess)
{
CMDCheck = cmdSearch.Commands.FirstOrDefault().Command;
}
if (CMDCheck != null)
{
var guser = (IGuildUser)context.User;
if (!guser.GuildPermissions.Administrator && !guild.ModerationSetup.AdminRoles.Any(x => guser.RoleIds.Contains(x)))
{
if (guild.Settings.DisabledParts.BlacklistedCommands.Any(x => string.Equals(x, CMDCheck.Name, StringComparison.CurrentCultureIgnoreCase)) ||
guild.Settings.DisabledParts.BlacklistedModules.Any(x => string.Equals(x, CMDCheck.Module.Name, StringComparison.CurrentCultureIgnoreCase)))
{
return(true);
}
}
}
}
return(false);
}
public static string DoReplacements(string input, LithiumContext context)
{
var result = input;
if (!string.IsNullOrEmpty(input))
{
result = Regex.Replace(input, "{user}", context.User.Username, RegexOptions.IgnoreCase);
result = Regex.Replace(result, "{user.mention}", context.User.Mention, RegexOptions.IgnoreCase);
result = Regex.Replace(result, "{guild}", context.Guild.Name, RegexOptions.IgnoreCase);
result = Regex.Replace(result, "{channel}", context.Channel.Name, RegexOptions.IgnoreCase);
result = Regex.Replace(result, "{channel.mention}", ((SocketTextChannel)context.Channel).Mention, RegexOptions.IgnoreCase);
}
return(result);
}
public async Task <bool> CheckToxicity(LithiumContext context, List <GuildModel.Guild.antispams.IgnoreRole> exemptcheck, CommandInfo CMDCheck)
{
var guild = context.Server;
if (guild.Antispam.Toxicity.UsePerspective)
{
var BypassToxicity = exemptcheck.Any(x => x.Toxicity);
if (!BypassToxicity)
{
var CheckUsingToxicity = CMDCheck == null;
if (ToxicityAPI != null && CheckUsingToxicity && !string.IsNullOrWhiteSpace(context.Message.Content))
{
try
{
var res = ToxicityAPI.QueryToxicity(context.Message.Content);
if (res.attributeScores.TOXICITY.summaryScore.value * 100 > guild.Antispam.Toxicity.ToxicityThreshHold)
{
await context.Message?.DeleteAsync();
var emb = new EmbedBuilder
{
Title = "Toxicity Threshhold Breached",
Description = $"{context.User.Mention}"
};
await context.Channel.SendMessageAsync("", false, emb.Build());
if (guild.Antispam.Blacklist.WarnOnDetection)
{
await guild.AddWarn("AutoMod - Toxicity", context.User as IGuildUser, context.Client.CurrentUser, context.Channel);
guild.Save();
}
return(true);
}
}
catch
{
//
}
}
}
}
return(false);
}
public async Task <bool> CheckBlacklist(LithiumContext context, List <GuildModel.Guild.antispams.IgnoreRole> exemptcheck, CommandInfo CMDCheck)
{
var guild = context.Server;
if (guild.Antispam.Blacklist.BlacklistWordSet.Any())
{
if (CMDCheck == null)
{
var BypassBlacklist = exemptcheck.Any(x => x.Blacklist);
if (!BypassBlacklist)
{
var blacklistdetected = false;
var blacklistmessage = guild.Antispam.Blacklist.DefaultBlacklistMessage;
var detectedblacklistmodule = guild.Antispam.Blacklist.BlacklistWordSet.FirstOrDefault(blist => blist.WordList.Any(x => context.Message.Content.ToLower().Contains(x.ToLower())));
if (detectedblacklistmodule != null)
{
blacklistdetected = true;
blacklistmessage = detectedblacklistmodule.BlacklistResponse ?? guild.Antispam.Blacklist.DefaultBlacklistMessage;
}
if (blacklistdetected)
{
await context.Message?.DeleteAsync();
if (!string.IsNullOrEmpty(blacklistmessage))
{
var result = Discord.Extensions.Formatting.DoReplacements(blacklistmessage, context);
await context.Channel.SendMessageAsync(result);
}
if (guild.Antispam.Blacklist.WarnOnDetection)
{
await guild.AddWarn("AutoMod - Blacklist", context.User as IGuildUser, context.Client.CurrentUser, context.Channel);
guild.Save();
}
return(true);
}
}
}
}
return(false);
}
public async Task <bool> AntiInvite(LithiumContext context, List <GuildModel.Guild.antispams.IgnoreRole> exemptcheck)
{
var guild = context.Server;
var bypass_invite = exemptcheck.Any(x => x.Advertising);
if (!bypass_invite)
{
if (Regex.Match(context.Message.Content, @"(http|https)?(:)?(\/\/)?(discordapp|discord).(gg|io|me|com)\/(\w+:{0,1}\w*@)?(\S+)(:[0-9]+)?(\/|\/([\w#!:.?+=&%@!-/]))?").Success)
{
await context.Message?.DeleteAsync();
var emb = new EmbedBuilder();
if (guild.Antispam.Advertising.NoInviteMessage != null)
{
emb.Description = Formatting.DoReplacements(guild.Antispam.Advertising.NoInviteMessage, context);
}
else
{
emb.Description = $"{context.User} - This server does not allow you to send invite links in chat";
}
// Description = guild.Antispam.Advertising.NoInviteMessage ?? $"{context.User?.Mention} - no sending invite links... the admins might get angry"
await context.Channel.SendMessageAsync(string.Empty, false, emb.Build());
if (guild.Antispam.Advertising.WarnOnDetection)
{
await guild.AddWarn("AutoMod - Anti Advertising", context.User as IGuildUser, context.Client.CurrentUser, context.Channel, context.Message.Content);
guild.Save();
}
return(true);
}
}
return(false);
}
public async Task <bool> AntiInvite(LithiumContext context, List <GuildModel.Guild.antispams.IgnoreRole> exemptcheck)
{
var guild = context.Server;
var BypassInvite = exemptcheck.Any(x => x.Advertising);
if (!BypassInvite)
{
if (Regex.Match(context.Message.Content, @"(http:\/\/www\.|https:\/\/www\.|http:\/\/|https:\/\/)?(d+i+s+c+o+r+d+|a+p+p)+([\-\.]{1}[a-z0-9]+)*\.[a-z]{2,5}(:[0-9]{1,5})?(\/.*)?$").Success)
{
await context.Message?.DeleteAsync();
var emb = new EmbedBuilder();
if (guild.Antispam.Advertising.NoInviteMessage != null)
{
emb.Description = Formatting.DoReplacements(guild.Antispam.Advertising.NoInviteMessage, context);
}
else
{
emb.Description = $"{context.User} - This server does not allow you to send invite links in chat";
}
// Description = guild.Antispam.Advertising.NoInviteMessage ?? $"{context.User?.Mention} - no sending invite links... the admins might get angry"
await context.Channel.SendMessageAsync("", false, emb.Build());
if (guild.Antispam.Advertising.WarnOnDetection)
{
await guild.AddWarn("AutoMod - Anti Advertising", context.User as IGuildUser, context.Client.CurrentUser, context.Channel);
guild.Save();
}
return(true);
}
}
return(false);
}
public async Task DoCommand(SocketMessage parameterMessage)
{
try
{
if (!(parameterMessage is SocketUserMessage message))
{
return;
}
var argPos = 0;
var context = new LithiumContext(_client, message, Provider);
//Do not react to commands initiated by a bot
if (context.User.IsBot)
{
return;
}
if (await RunSpamChecks(context))
{
return;
}
//Ensure that commands are only executed if they start with the bot's prefix
if (!(message.HasMentionPrefix(_client.CurrentUser, ref argPos) ||
message.HasStringPrefix(Config.Load().DefaultPrefix, ref argPos) ||
(context.Server?.Settings.Prefix != null && message.HasStringPrefix(context.Server.Settings.Prefix, ref argPos))))
{
return;
}
//Ensure that the message passes all checks before running as a command
if (CheckHidden(context))
{
return;
}
var result = await _commands.ExecuteAsync(context, argPos, Provider);
var commandsuccess = result.IsSuccess;
if (!commandsuccess)
{
var embed = new EmbedBuilder
{
Title = $"ERROR: {result.Error.ToString().ToUpper()}",
Description = $"Command: {context.Message}\n" +
$"Error: {result.ErrorReason}"
};
await context.Channel.SendMessageAsync("", false, embed.Build());
Logger.LogMessage($"{message.Content} || {message.Author}", LogSeverity.Error);
}
else
{
Logger.LogMessage($"{message.Content} || {message.Author}");
}
}
catch (Exception e)
{
Logger.LogMessage(e.ToString(), LogSeverity.Error);
}
}
public async Task <bool> RunSpamChecks(LithiumContext context)
{
if (context.Guild == null)
{
return(false);
}
if (context.Channel is IDMChannel)
{
return(false);
}
if (context.Server == null)
{
return(false);
}
try
{
var guild = context.Server;
var exemptcheck = new List <GuildModel.Guild.antispams.IgnoreRole>();
if (guild.Antispam.IgnoreRoles.Any())
{
exemptcheck = guild.Antispam.IgnoreRoles.Where(x => ((IGuildUser)context.User).RoleIds.Contains(x.RoleID)).ToList();
}
if (guild.Antispam.Antispam.NoSpam)
{
if (await AntiSpam(context, exemptcheck))
{
return(true);
}
}
if (guild.Antispam.Advertising.Invite)
{
if (await AntiInvite(context, exemptcheck))
{
return(true);
}
}
if (guild.Antispam.Mention.RemoveMassMention || guild.Antispam.Mention.MentionAll)
{
if (await AntiMention(context, exemptcheck))
{
return(true);
}
}
if (guild.Antispam.Privacy.RemoveIPs)
{
if (await AntiIp(context, exemptcheck))
{
return(true);
}
}
if (guild.Antispam.Blacklist.BlacklistWordSet.Any() || guild.Antispam.Toxicity.UsePerspective)
{
CommandInfo CMDCheck = null;
var argPos = 0;
var cmdSearch = _commands.Search(context, argPos);
if (cmdSearch.IsSuccess)
{
CMDCheck = cmdSearch.Commands.FirstOrDefault().Command;
}
if (await CheckBlacklist(context, exemptcheck, CMDCheck))
{
return(true);
}
if (await CheckToxicity(context, exemptcheck, CMDCheck))
{
return(true);
}
}
}
catch (Exception e)
{
Logger.LogMessage($"AntiSpam Error G:[{context.Guild.Id}] GN:{context.Guild.Name} C:{context.Channel.Name} U:{context.User.Username}\n" +
$"{e}", LogSeverity.Error);
}
return(false);
}
public async Task <bool> AntiMention(LithiumContext context, List <GuildModel.Guild.antispams.IgnoreRole> exemptcheck)
{
var guild = context.Server;
var BypassMention = exemptcheck.Any(x => x.Mention);
if (!BypassMention)
{
if (guild.Antispam.Mention.RemoveMassMention)
{
if (context.Message.MentionedRoleIds.Count + context.Message.MentionedUserIds.Count >= 5)
{
await context.Message?.DeleteAsync();
var emb = new EmbedBuilder
{
Description = $"{context.User} - This server does not allow you to mention 5+ roles or uses at once"
};
await context.Channel.SendMessageAsync("", false, emb.Build());
if (guild.Antispam.Mention.WarnOnDetection)
{
await guild.AddWarn("AutoMod - Mass Mention", context.User as IGuildUser, context.Client.CurrentUser, context.Channel);
guild.Save();
}
return(true);
}
}
if (guild.Antispam.Mention.MentionAll)
{
if (context.Message.Content.Contains("@everyone") || context.Message.Content.Contains("@here"))
{
await context.Message?.DeleteAsync();
var emb = new EmbedBuilder();
if (guild.Antispam.Mention.MentionAllMessage != null)
{
emb.Description = guild.Antispam.Mention.MentionAllMessage;
}
else
{
emb.Title = $"{context.User} - This server has disabled the ability for you to mention @everyone and @here";
}
await context.Channel.SendMessageAsync("", false, emb.Build());
if (guild.Antispam.Mention.WarnOnDetection)
{
await guild.AddWarn("AutoMod - Mention All", context.User as IGuildUser, context.Client.CurrentUser, context.Channel);
guild.Save();
}
return(true);
//if
// 1. The server Has Mention Deletions turned on
// 2. The user is not an admin
// 3. The user does not have one of the mention excempt roles
}
}
}
return(false);
}
public async Task <bool> AntiSpam(LithiumContext context, List <GuildModel.Guild.antispams.IgnoreRole> exemptcheck)
{
var guild = context.Server;
var detected = false;
var SpamGuild = NoSpam.FirstOrDefault(x => x.GuildID == ((SocketGuildUser)context.User).Guild.Id);
if (SpamGuild == null)
{
NoSpam.Add(new NoSpamGuild
{
GuildID = context.Guild.Id,
Users = new List <NoSpamGuild.NoSpam>
{
new NoSpamGuild.NoSpam
{
UserID = context.User.Id,
Messages = new List <NoSpamGuild.NoSpam.Msg>
{
new NoSpamGuild.NoSpam.Msg
{
LastMessage = context.Message.Content,
LastMessageDate = DateTime.UtcNow
}
}
}
}
});
}
else
{
var user = SpamGuild.Users.FirstOrDefault(x => x.UserID == context.User.Id);
if (user == null)
{
SpamGuild.Users.Add(new NoSpamGuild.NoSpam
{
UserID = context.User.Id,
Messages = new List <NoSpamGuild.NoSpam.Msg>
{
new NoSpamGuild.NoSpam.Msg
{
LastMessage = context.Message.Content,
LastMessageDate = DateTime.UtcNow
}
}
});
}
else
{
user.Messages.Add(new NoSpamGuild.NoSpam.Msg
{
LastMessage = context.Message.Content,
LastMessageDate = DateTime.UtcNow
});
if (user.Messages.Count >= 2)
{
var msgs = user.Messages.Where(x => x.LastMessageDate > DateTime.UtcNow - TimeSpan.FromSeconds(10)).ToList();
//Here we detect spam based on wether or not a user is sending the same message repeatedly
//Or wether they have sent a message more than 3 times in the last 5 seconds
if (msgs.GroupBy(n => n.LastMessage.ToLower()).Any(c => c.Count() > 1) || msgs.Count(x => x.LastMessageDate > DateTime.UtcNow - TimeSpan.FromSeconds(5)) > 3)
{
detected = true;
}
}
if (user.Messages.Count > 10)
{
//Filter out messages so that we only keep a log of the most recent ones within the last 10 seconds.
var msgs = user.Messages.OrderBy(x => x.LastMessageDate).ToList();
msgs.RemoveRange(0, 1);
msgs = msgs.Where(x => x.LastMessageDate > DateTime.UtcNow - TimeSpan.FromSeconds(10)).ToList();
user.Messages = msgs;
}
if (detected)
{
var BypassAntispam = exemptcheck.Any(x => x.AntiSpam);
if (!BypassAntispam)
{
if (!guild.Antispam.Antispam.AntiSpamSkip.Any(x => context.Message.Content.ToLower().Contains(x.ToLower())))
{
await context.Message?.DeleteAsync();
var delay = AntiSpamMsgDelays.FirstOrDefault(x => x.GuildID == guild.GuildID);
if (delay != null)
{
if (delay._delay > DateTime.UtcNow)
{
return(true);
}
delay._delay = DateTime.UtcNow.AddSeconds(5);
var emb = new EmbedBuilder
{
Description = $"{context.User} - No Spamming!!"
};
await context.Channel.SendMessageAsync("", false, emb.Build());
if (guild.Antispam.Antispam.WarnOnDetection)
{
await guild.AddWarn("AutoMod - AntiSpam", context.User as IGuildUser, context.Client.CurrentUser, context.Channel);
guild.Save();
}
}
else
{
AntiSpamMsgDelays.Add(new Delays
{
_delay = DateTime.UtcNow.AddSeconds(5),
GuildID = guild.GuildID
});
}
return(true);
}
}
}
}
}
return(false);
}
