def add_data(self, infohash, event, ip, paramslist):
        peers = self.downloads.setdefault(infohash, {})
        ts = self.times.setdefault(infohash, {})
        self.completed.setdefault(infohash, 0)
        self.seedcount.setdefault(infohash, 0)

        def params(key, default = None, l = paramslist):
            if l.has_key(key):
                return l[key][0]
            return default
        
        myid = params('peer_id','')
        if len(myid) != 20:
            raise ValueError, 'id not of length 20'
        if event not in ['started', 'completed', 'stopped', 'snooped', None]:
            raise ValueError, 'invalid event'
        port = long(params('port',''))
        if port < 0 or port > 65535:
            raise ValueError, 'invalid port'
        left = long(params('left',''))
        if left < 0:
            raise ValueError, 'invalid amount left'
        uploaded = long(params('uploaded',''))
        downloaded = long(params('downloaded',''))

        peer = peers.get(myid)
        islocal = local_IPs.includes(ip)
        mykey = params('key')
        if peer:
            auth = peer.get('key',-1) == mykey or peer.get('ip') == ip

        gip = params('ip')
        if is_valid_ip(gip) and (islocal or not self.only_local_override_ip):
            ip1 = gip
        else:
            ip1 = ip

        if params('numwant') is not None:
            rsize = min(int(params('numwant')),self.response_size)
        else:
            rsize = self.response_size

        if event == 'stopped':
            if peer:
                if auth:
                    self.delete_peer(infohash,myid)
        
        elif not peer:
            ts[myid] = clock()
            peer = {'ip': ip, 'port': port, 'left': left}
            if mykey:
                peer['key'] = mykey
            if gip:
                peer['given ip'] = gip
            if port:
                if not self.natcheck or islocal:
                    peer['nat'] = 0
                    self.natcheckOK(infohash,myid,ip1,port,left)
                else:
                    NatCheck(self.connectback_result,infohash,myid,ip1,port,self.rawserver)
            else:
                peer['nat'] = 2**30
            if event == 'completed':
                self.completed[infohash] += 1
            if not left:
                self.seedcount[infohash] += 1

            peers[myid] = peer

        else:
            if not auth:
                return rsize    # return w/o changing stats

            ts[myid] = clock()
            if not left and peer['left']:
                self.completed[infohash] += 1
                self.seedcount[infohash] += 1
                if not peer.get('nat', -1):
                    for bc in self.becache[infohash]:
                        bc[1][myid] = bc[0][myid]
                        del bc[0][myid]
            if peer['left']:
                peer['left'] = left

            if port:
                recheck = False
                if ip != peer['ip']:
                    peer['ip'] = ip
                    recheck = True
                if gip != peer.get('given ip'):
                    if gip:
                        peer['given ip'] = gip
                    elif peer.has_key('given ip'):
                        del peer['given ip']
                    recheck = True

                natted = peer.get('nat', -1)
                if recheck:
                    if natted == 0:
                        l = self.becache[infohash]
                        y = not peer['left']
                        for x in l:
                            del x[y][myid]
                        if not self.natcheck or islocal:
                            del peer['nat'] # restart NAT testing
                if natted and self.natcheck < natted:
                    recheck = True

                if recheck:
                    if not self.natcheck or islocal:
                        peer['nat'] = 0
                        self.natcheckOK(infohash,myid,ip1,port,left)
                    else:
                        NatCheck(self.connectback_result,infohash,myid,ip1,port,self.rawserver)

        return rsize
dataset/ETHPy150Open Piratenfraktion-Berlin/OwnTube/videoportal/BitTornadoABC/BitTornado/BT1/track.py/Tracker.add_data/swapped operands of `<`