def get_status_info():
current_pass_json = {}
scheduled_pass_json = {}
current_pass_json['azimuth'] = 'NA'
current_pass_json['altitude'] = 'NA'
current_pass_json['frequency'] = 'NA'
current_pass_json['tle0'] = 'NA'
current_pass_json['tle1'] = 'NA'
current_pass_json['tle2'] = 'NA'
# current_pass_json = jsonify(current_pass_json)
scheduled_pass_json['Info'] = 'There are no scheduled observations.'
# scheduled_pass_json = jsonify(scheduled_pass_json)
current_pass_sock = Commsocket('127.0.0.1', client_settings.CURRENT_PASS_TCP_PORT)
scheduled_pass_sock = Commsocket('127.0.0.1', client_settings.TASK_FEEDER_TCP_PORT)
current_pass_check = current_pass_sock.connect()
scheduled_pass_check = scheduled_pass_sock.connect()
if scheduled_pass_check:
scheduled_pass_json = scheduled_pass_sock.send("Requesting scheduled observations\n")
scheduled_pass_json = json.loads(scheduled_pass_json)
else:
logger.info('No observation currently')
if current_pass_check:
current_pass_json = current_pass_sock.send("Requesting current observations\n")
current_pass_json = json.loads(current_pass_json)
else:
logger.info('No observation currently')
# return current_pass_json
return jsonify(observation=dict(current=current_pass_json, scheduled=scheduled_pass_json))
def get_jobs():
logger.info('Get jobs started')
"""Query SatNOGS Network API to GET jobs."""
url = urljoin(settings.SATNOGS_NETWORK_API_URL, 'jobs/')
params = {'ground_station': settings.SATNOGS_STATION_ID}
headers = {'Authorization': 'Token {0}'.format(settings.SATNOGS_API_TOKEN)}
logger.debug('URL: {0}'.format(url))
logger.debug('Params: {0}'.format(params))
logger.debug('Headers: {0}'.format(headers))
logger.info('Trying to GET observation jobs from the network')
response = requests.get(url,
params=params,
headers=headers,
verify=settings.SATNOGS_VERIFY_SSL)
if not response.status_code == 200:
raise Exception('Status code: {0} on request: {1}'.format(
response.status_code, url))
for job in scheduler.get_jobs():
if job.name in [spawn_observer.__name__]:
job.remove()
sock = Commsocket('127.0.0.1', settings.TASK_FEEDER_TCP_PORT)
tasks = []
for obj in response.json():
tasks.append(obj)
start = parser.parse(obj['start'])
job_id = str(obj['id'])
kwargs = {'obj': obj}
logger.info('Adding new job: {0}'.format(job_id))
logger.debug('Observation obj: {0}'.format(obj))
scheduler.add_job(spawn_observer,
'date',
run_date=start,
id='observer_{0}'.format(job_id),
kwargs=kwargs)
tasks.reverse()
while sys.getsizeof(json.dumps(tasks)) > sock.tasks_buffer_size:
tasks.pop()
b = sock.connect()
if b:
sock.send_not_recv(json.dumps(tasks))
else:
logger.info('Task listener thread not online')
def get_jobs():
logger.info('Get jobs started')
"""Query SatNOGS Network API to GET jobs."""
url = urljoin(settings.NETWORK_API_URL, 'jobs/')
params = {'ground_station': settings.GROUND_STATION_ID}
headers = {'Authorization': 'Token {0}'.format(settings.API_TOKEN)}
logger.debug('URL: {0}'.format(url))
logger.debug('Params: {0}'.format(params))
logger.debug('Headers: {0}'.format(headers))
logger.info('Trying to GET observation jobs from the network')
response = requests.get(url, params=params, headers=headers, verify=settings.VERIFY_SSL)
if not response.status_code == 200:
raise Exception('Status code: {0} on request: {1}'.format(response.status_code, url))
for job in scheduler.get_jobs():
if job.name in [spawn_observer.__name__]:
job.remove()
sock = Commsocket('127.0.0.1', settings.TASK_FEEDER_TCP_PORT)
tasks = []
for obj in response.json():
tasks.append(obj)
start = parser.parse(obj['start'])
job_id = str(obj['id'])
kwargs = {'obj': obj}
logger.info('Adding new job: {0}'.format(job_id))
logger.debug('Observation obj: {0}'.format(obj))
scheduler.add_job(spawn_observer,
'date',
run_date=start,
id='observer_{0}'.format(job_id),
kwargs=kwargs)
tasks.reverse()
while sys.getsizeof(json.dumps(tasks)) > sock.tasks_buffer_size:
tasks.pop()
b = sock.connect()
if b:
sock.send_not_recv(json.dumps(tasks))
else:
logger.info('Task listener thread not online')
def ecss_encoder(port):
logger.info('Started ecss encoder')
sock = Commsocket('127.0.0.1', port)
sock.bind()
sock.listen()
while 1:
conn = sock.accept()
if conn:
data = conn.recv(sock.tasks_buffer_size)
ecss_packetizer(data)
def _communicate_tracking_info(self):
"""
Runs as a daemon thread, communicating tracking info to remote socket.
Uses observer and satellite objects set by trackobject().
Will exit when observation_end timestamp is reached.
"""
sock = Commsocket(self._IP, self._PORT)
sock.connect()
# track satellite
while self.is_alive:
# check if we need to exit
self.check_observation_end_reached()
p = pinpoint(self.observer_dict, self.satellite_dict)
if p['ok']:
self.send_to_socket(p, sock)
time.sleep(self.SLEEP_TIME)
sock.disconnect()
def _communicate_tracking_info(self):
"""
Runs as a daemon thread, communicating tracking info to remote socket.
Uses observer and satellite objects set by trackobject().
Will exit when observation_end timestamp is reached.
"""
sock = Commsocket(self._IP, self._PORT)
sock.connect()
# track satellite
while self.is_alive:
# check if we need to exit
self.check_observation_end_reached()
p = pinpoint(self.observer_dict, self.satellite_dict)
if p['ok']:
dict = {
'azimuth': p['az'].conjugate() * 180 / math.pi,
'altitude': p['alt'].conjugate() * 180 / math.pi,
'frequency':
self._frequency * (1 - (p['rng_vlct'] / ephem.c)),
'tle0': self.satellite_dict['tle0'],
'tle1': self.satellite_dict['tle1'],
'tle2': self.satellite_dict['tle2']
}
socketio.emit('update_rotator',
dict,
namespace='/update_status')
self.send_to_socket(p, sock)
time.sleep(self.SLEEP_TIME)
sock.disconnect()
def task_feeder(port):
sleep(1)
logger.info('Started task feeder')
sock = Commsocket('127.0.0.1', port)
sock.bind()
sock.listen()
while 1:
try:
conn = sock.accept()
except IOError:
logger.info('Task feeder is terminated or something bad happened to accept')
return
if conn:
data = conn.recv(sock.tasks_buffer_size)
# Data must be sent to socket.io here
socketio.emit('backend_msg', data, namespace='/control_rx')
def ecss_packetizer(ecss, buf):
Commsocket(packet_settings.FRAME_RECEIVER_IP,
packet_settings.FRAME_RECEIVER_PORT)
assert ((ecss['type'] == 0) or (ecss['type'] == 1))
assert (ecss['app_id'] < packet_settings.LAST_APP_ID)
data_size = ecss['size']
app_id = htons(ecss['app_id'])
app_id_ms = app_id & 0xFF00
app_id_ls = app_id & 0x00FF
app_id_ms = app_id_ms >> 8
buf[0] = (packet_settings.ECSS_VER_NUMBER << 5 | ecss['type'] << 4
| packet_settings.ECSS_DATA_FIELD_HDR_FLG << 3 | app_id_ls)
buf[1] = app_id_ms
seq_flags = packet_settings.TC_TM_SEQ_SPACKET
seq_count = htons(ecss['seq_count'])
seq_count_ms = (seq_count >> 8) & 0x00FF
seq_count_ls = seq_count & 0x00FF
buf[2] = (seq_flags << 6 | seq_count_ls)
buf[3] = seq_count_ms
if ecss['type'] == 0:
buf[6] = packet_settings.ECSS_PUS_VER << 4
elif ecss['type'] == 1:
buf[6] = (packet_settings.ECSS_SEC_HDR_FIELD_FLG << 7
| packet_settings.ECSS_PUS_VER << 4 | ecss['ack'])
buf[7] = ecss['ser_type']
buf[8] = ecss['ser_subtype']
buf[9] = ecss['dest_id']
buf_pointer = packet_settings.ECSS_DATA_OFFSET
for i in range(0, data_size):
buf[buf_pointer + i] = ecss['data'][i]
data_w_headers = data_size + packet_settings.ECSS_DATA_HEADER_SIZE + packet_settings.ECSS_CRC_SIZE - 1
packet_size_ms = htons(data_w_headers) & 0xFF00
packet_size_ls = htons(data_w_headers) & 0x00FF
buf[4] = packet_size_ls
buf[5] = packet_size_ms >> 8
buf_pointer = buf_pointer + data_size
for i in range(0, buf_pointer):
buf[buf_pointer + 1] = buf[buf_pointer + 1] ^ buf[i]
size = buf_pointer + 2
assert (size > packet_settings.MIN_PKT_SIZE
and size < packet_settings.MAX_PKT_SIZE)
logger.debug('Packet in hex: %s',
''.join(' {:02x} '.format(x) for x in buf))
return packet_settings.SATR_OK
def _status_interface(self, port):
sock = Commsocket('127.0.0.1', port)
# sock.get_sock().bind(('127.0.0.1',port))
sock.bind()
sock.listen()
while self.is_alive:
conn = sock.accept()
if conn:
conn.recv(sock.buffer_size)
dict = {
'azimuth': "{0:.2f}".format(self._azimuth),
'altitude': "{0:.2f}".format(self._altitude),
'frequency': self._frequency,
'tle0': self.satellite_dict['tle0'],
'tle1': self.satellite_dict['tle1'],
'tle2': self.satellite_dict['tle2']
}
conn.send(json.dumps(dict))
conn.close()
def task_feeder(port):
sleep(1)
logger.info('Started task feeder')
sock = Commsocket('127.0.0.1', port)
sock.bind()
sock.listen()
while 1:
try:
conn = sock.accept()
except IOError:
logger.info('Task feeder is terminated or something bad happened to accept')
return
if conn:
data = conn.recv(sock.tasks_buffer_size)
# Data must be sent to socket.io here
socketio.emit('backend_msg', data, namespace='/control_rx')
def _status_interface(self, port):
sock = Commsocket('127.0.0.1', port)
# sock.get_sock().bind(('127.0.0.1',port))
sock.bind()
sock.listen()
while self.is_alive:
conn = sock.accept()
if conn:
conn.recv(sock.buffer_size)
dict = {'azimuth': "{0:.2f}".format(self._azimuth),
'altitude': "{0:.2f}".format(self._altitude),
'frequency': self._frequency,
'tle0': self.satellite_dict['tle0'],
'tle1': self.satellite_dict['tle1'],
'tle2': self.satellite_dict['tle2']}
conn.send(json.dumps(dict))
conn.close()
def _communicate_tracking_info(self):
"""
Runs as a daemon thread, communicating tracking info to remote socket.
Uses observer and satellite objects set by trackobject().
Will exit when observation_end timestamp is reached.
"""
sock = Commsocket(self._IP, self._PORT)
sock.connect()
# track satellite
while self.is_alive:
# check if we need to exit
self.check_observation_end_reached()
p = pinpoint(self.observer_dict, self.satellite_dict)
if p['ok']:
self.send_to_socket(p, sock)
time.sleep(self._sleep_time)
sock.disconnect()
