// DropPacket is a simple hook which will "skip" dropped packets included in the
// server's drop list (including dropped CPE extensions).
func DropPacket(p *Player, dir packets.PacketDirection, packet packets.Packet) (drop bool) {
if Ku == nil || Ku.Config == nil {
drop = false
return
}
for _, id := range Ku.Config.Drop {
if id != packet.Id() {
continue
}
drop = true
break
}
if ep, ok := packet.(cpe.ExtPacket); !drop && ok {
for _, ext := range Ku.Config.DropExts {
if ext != ep.String() {
continue
}
drop = true
break
}
}
if drop {
Debugf("(%s) %s dropped packet %#.2x", p.Id, p.Name, packet.Id())
}
return
}
func (p *Parser) Register(packet packets.Packet, hook Hook) (string, error) {
if _, ok := p.hooks[packet.Id()]; !ok {
p.hooks[packet.Id()] = []hookInfo{}
}
id := uniuri.NewLen(8)
info := hookInfo{Id: id, F: hook}
p.hooks[packet.Id()] = append(p.hooks[packet.Id()], info)
return id, nil
}