def trafficRequestReceived(self, host, port, key, payload):
if len(payload) != 8: return
data = struct.unpack('!II', payload)
pilot = User.by_tracking_key(key)
if pilot is None:
log.err("No such pilot: %d" % key)
return
flags = data[0]
or_filters = []
if flags & TRAFFIC_FLAG_FOLLOWEES:
subq = DBSession.query(Follower.destination_id) \
.filter(Follower.source_id == pilot.id) \
.subquery()
or_filters.append(TrackingFix.pilot_id.in_(subq))
if flags & TRAFFIC_FLAG_CLUB:
subq = DBSession.query(User.id) \
.filter(User.club_id == pilot.club_id) \
.subquery()
or_filters.append(TrackingFix.pilot_id.in_(subq))
if len(or_filters) == 0:
return
query = DBSession.query(TrackingFix) \
.distinct(TrackingFix.pilot_id) \
.filter(and_(TrackingFix.time >= datetime.datetime.utcnow() - datetime.timedelta(hours=2),
TrackingFix.pilot_id != pilot.id,
TrackingFix.location_wkt != None,
TrackingFix.altitude != None,
or_(*or_filters))) \
.order_by(TrackingFix.pilot_id, desc(TrackingFix.time)) \
.limit(32)
response = ''
count = 0
for fix in query:
location = fix.location
if location is None: continue
t = fix.time
t = t.hour * 3600000 + t.minute * 60000 + t.second * 1000 + t.microsecond / 1000
response += struct.pack('!IIiihHI', fix.pilot_id, t,
int(location.latitude * 1000000),
int(location.longitude * 1000000),
int(fix.altitude), 0, 0)
count += 1
response = struct.pack('!HBBI', 0, 0, count, 0) + response
response = struct.pack('!IHHQ', MAGIC, 0, TYPE_TRAFFIC_RESPONSE, 0) + response
response = set_crc(response)
self.transport.write(response, (host, port))
def pingReceived(self, host, port, key, payload):
if len(payload) != 8: return
id, reserved, reserved2 = struct.unpack('!HHI', payload)
flags = 0
pilot = User.by_tracking_key(key)
if not pilot:
flags |= FLAG_ACK_BAD_KEY
data = struct.pack('!IHHQHHI', MAGIC, 0, TYPE_ACK, 0,
id, 0, flags)
data = set_crc(data)
self.transport.write(data, (host, port))
