download new Iridium packets

[zacharyburnett]

@jtmolter here's a place where we can collate info / links on the Iridium API, so it doesn't get deleted on Slack

[zacharyburnett]

https://docs.rockblock.rock7.com/reference#testinput

When a message is sent by your RockBLOCK, we will open an HTTP connection to your application URL.

Your application must respond promptly (within 3 seconds) with an HTTP status 200, to indicate that you have successfully handled the message.

[zacharyburnett]

I've drafted up a rudimentary interface with which to connect to RockBLOCK and receive packets, I just need to find the format that the packets come in so I can parse them

PacketRaven/packetraven/connections/internet.py

Lines 113 to 203 in 4901c8e

	class RockBLOCK(PacketSource, NetworkConnection):
	interval = timedelta(seconds=10)
	def __init__(self, imei: str, username: str = None, password: str = None):
	"""
	connect to RockBLOCK API
	:param imei: IMEI of RockBLOCK
	:param username: RockBLOCK username
	:param password: RockBLOCK password
	"""
	url = 'https://rockblock.rock7.com/rockblock/MT'
	super().__init__(url)
	if username is None or username == '':
	configuration = read_configuration(CREDENTIALS_FILENAME)
	if 'RockBLOCK' in configuration:
	username = configuration['RockBLOCK']['username']
	else:
	raise ConnectionError(f'no RockBLOCK username specified')
	if password is None or password == '':
	configuration = read_configuration(CREDENTIALS_FILENAME)
	if 'RockBLOCK' in configuration:
	password = configuration['RockBLOCK']['password']
	else:
	raise ConnectionError(f'no RockBLOCK password specified')
	if not self.connected:
	raise ConnectionError(f'no network connection')
	self.imei = imei
	self.username = username
	self.password = password
	self.__last_access_time = None
	@property
	def packets(self) -> [LocationPacket]:
	if self.__last_access_time is not None and self.interval is not None:
	interval = datetime.now() - self.__last_access_time
	if interval < self.interval:
	raise TimeIntervalError(
	f'interval {interval} less than minimum interval {self.interval}'
	)
	query = {
	'imei': self.imei,
	'username': self.username,
	'password': self.password,
	}
	query = '&'.join(f'{key}={value}' for key, value in query.items())
	response = requests.get(f'{self.location}?{query}')
	status, code, data = response.text.split(',')
	if status == 'OK':
	# TODO test this with RockBLOCK data
	packets = data.split(',')
	if len(packets) > 0:
	# respond promptly with normal response code if received data
	post_query = {
	'username': self.username,
	'password': self.password,
	}
	requests.post(
	f'{self.location}?{post_query}', headers={'Accept': 'text/plain'}
	)
	# TODO write packet parsing code here
	else:
	if code == '10':
	raise ConnectionError(data)
	elif code in ['11', '12', '13']:
	raise PermissionError(data)
	elif code in ['14', '15']:
	raise ValueError(data)
	elif code == '16':
	packets = []
	else:
	raise SystemError(data)
	self.__last_access_time = datetime.now()
	return packets
	def close(self):
	pass

[zacharyburnett]

https://docs.rockblock.rock7.com/reference/receiving-mo-messages-via-http-webhook
^ this details the steps to set up a receiving node

[zacharyburnett]

it sounds like we will have to set up an active web socket that can accept POST requests from the RockBLOCK servers. We can do this with Flask (https://zetcode.com/python/getpostrequest/) but it would have to be a separately running application that passes packets to the server