public async Task <bool> RemoveBinding(IEntity <ulong> binding)
{
using (var db = new ImageSpamContext(dbOptions))
{
var entities = db.ImageSpamBindings.Where(b => b.ChannelId == binding.Id);
if (!entities.Any())
{
return(false);
}
db.ImageSpamBindings.RemoveRange(entities);
await db.SaveChangesAsync();
return(true);
}
}
public async Task <bool> AddBinding(IMessageChannel channel)
{
using (var db = new ImageSpamContext(dbOptions))
{
if (db.ImageSpamBindings.Any(b => b.ChannelId == channel.Id))
{
return(false);
}
db.ImageSpamBindings.Add(new ImageSpamBinding
{
ChannelId = channel.Id,
});
await db.SaveChangesAsync();
return(true);
}
}
private async Task Handler(SocketMessage msg)
{
try
{
using (var db = new ImageSpamContext(dbOptions))
{
if (msg.Author is IGuildUser user &&
!db.ImageSpamBindings.Any(b => b.ChannelId == msg.Channel.Id) &&
msg.Attachments.Count > 0)
{
var messages = await msg.Channel.GetMessagesAsync(limit : 50).Flatten();
var imagesCounter = (from message in messages.ToList().OrderByDescending(o => o.Timestamp)
let timeDifference = DateTimeOffset.Now - message.Timestamp
where timeDifference.TotalSeconds < 15 && message.Attachments.Count > 0 && message.Author.Id == msg.Author.Id
select message).Count();
if (imagesCounter > 2)
{
await msg.DeleteAsync();
await msg.Channel.SendMessageAsync($"{user.Mention} Your message has been removed for being image spam. You have been preventively muted.");
var mutedRole = user.Guild.Roles.FirstOrDefault(role => role.Name.ToLower().Contains("muted"));
await user.AddRoleAsync(mutedRole);
await Task.Delay(5 * 60 * 1000);
await user.RemoveRoleAsync(mutedRole);
await msg.Channel.SendMessageAsync($"User {user.Mention} has been unmuted automatically.");
}
}
}
}
catch (HttpException)
{
}
}
public bool CheckBinding(IMessageChannel channel)
{
using (var db = new ImageSpamContext(dbOptions))
return(db.ImageSpamBindings.Any(b => b.ChannelId == channel.Id));
}
