// Checks a message for spam
private Task CheckForSpamAsync(SocketUserMessage message, out bool result)
{
// Set default to not spam
result = false;
// Check if bot
if (message.Author.IsBot)
{
result = true;
}
// Check blacklist and greylist and optedout
if (Blacklist.ContainsKey(message.Author.Id) ||
Greylist.Contains(message.Author.Id) ||
OptedOut.ContainsKey(message.Author.Id))
{
result = true;
}
// Check if command
if (message.Content.StartsWith("!") ||
message.Content.StartsWith("$") ||
message.Content.StartsWith(".") ||
message.Content.StartsWith("^"))
{
if (logLevel >= 4)
{
Log("Filter", "{0} Command ignored", message.Author);
}
result = true;
}
// Check user created time
try
{
if (DateTimeOffset.Now.ToUnixTimeMilliseconds() - message.Author.CreatedAt.ToUnixTimeMilliseconds() < accountAge * 60 * 60 * 1000)
{
if (logLevel >= 4)
{
Log("Filter", "Account age filter triggered: {0} - {1} = {2} < {3}",
DateTimeOffset.Now.ToUnixTimeMilliseconds(), message.Author.CreatedAt.ToUnixTimeMilliseconds(),
DateTimeOffset.Now.ToUnixTimeMilliseconds() - message.Author.CreatedAt.ToUnixTimeMilliseconds(),
accountAge * 60 * 60 * 1000);
}
result = true;
}
}
catch { }
// Check minimum number of spaces
if (message.Content.Count(char.IsWhiteSpace) < 3)
{
if (logLevel >= 4)
{
Log("Filter", "{0} Less than 3 spaces", message.Author);
}
result = true;
}
// Check if message doesn't contain any alphanumeric
if (new Regex("[^a-zA-Z0-9]").Replace(message.Content, "").Length < 14)
{
if (logLevel >= 4)
{
Log("Filter", "{0} Not enough alphanumeric", message.Author);
}
result = true;
}
// Check that message contains at least 1 lowercase letter
if (!message.Content.Any(char.IsLower))
{
if (logLevel >= 4)
{
Log("Filter", "{0} No lower case letters", message.Author);
}
result = true;
}
// Check ignored word list
foreach (string ignore in wordFilter)
{
if (message.Content.ToLower().Contains(ignore))
{
if (logLevel >= 4)
{
Log("Filter", "{0} Ignored word found", message.Author);
}
result = true;
break;
}
}
// Check that last message was different
if (!UserMessages.ContainsKey(message.Author.Id))
{
UserMessages[message.Author.Id] = new UserMessage(message);
}
else if (UserMessages[message.Author.Id].Content == message.Content)
{
if (logLevel >= 4)
{
Log("Filter", "{0} Last message same as current one", message.Author);
}
result = true;
}
// Check exiled nickname list
try
{
foreach (string ignore in ignoredNicknames)
{
if ((message.Author as SocketGuildUser).Nickname.ToLower().Contains(ignore))
{
if (logLevel >= 4)
{
Log("Filter", "{0} Nickname contains blacklisted term", message.Author);
}
result = true;
break;
}
}
}
catch { }
// Check that user has at least one required role (if applicable)
if (requiredRoles.Count > 0)
{
var user = message.Author as SocketGuildUser;
bool HasRole = false;
foreach (string Role in requiredRoles)
{
var role = (user as IGuildUser).Guild.Roles.FirstOrDefault(x => x.Name.ToLower() == Role);
if (user.Roles.Contains(role))
{
HasRole = true;
break;
}
}
if (!HasRole)
{
if (logLevel >= 4)
{
Log("Filter", "{0} No required role", message.Author);
}
result = true;
}
}
// Completed
UserMessages[message.Author.Id] = new UserMessage(message);
return(Task.CompletedTask);
}
