185 lines
6 KiB
Python
185 lines
6 KiB
Python
#!/usr/bin/python3
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######################################################################
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#
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# Publish Starlink user terminal packet loss statistics to a MQTT
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# broker.
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#
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# This script examines the most recent samples from the history data,
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# computes several different metrics related to packet loss, and
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# publishes those to the specified MQTT broker.
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#
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######################################################################
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import getopt
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import logging
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import sys
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import time
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try:
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import ssl
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ssl_ok = True
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except ImportError:
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ssl_ok = False
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import paho.mqtt.publish
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import starlink_grpc
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def main():
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arg_error = False
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try:
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opts, args = getopt.getopt(sys.argv[1:], "ahn:p:rs:t:vC:ISP:U:")
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except getopt.GetoptError as err:
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print(str(err))
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arg_error = True
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# Default to 1 hour worth of data samples.
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samples_default = 3600
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samples = None
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print_usage = False
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verbose = False
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default_loop_time = 0
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loop_time = default_loop_time
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run_lengths = False
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host_default = "localhost"
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mqargs = {"hostname": host_default}
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username = None
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password = None
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if not arg_error:
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if len(args) > 0:
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arg_error = True
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else:
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for opt, arg in opts:
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if opt == "-a":
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samples = -1
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elif opt == "-h":
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print_usage = True
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elif opt == "-n":
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mqargs["hostname"] = arg
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elif opt == "-p":
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mqargs["port"] = int(arg)
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elif opt == "-r":
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run_lengths = True
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elif opt == "-s":
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samples = int(arg)
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elif opt == "-t":
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loop_time = float(arg)
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elif opt == "-v":
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verbose = True
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elif opt == "-C":
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mqargs["tls"] = {"ca_certs": arg}
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elif opt == "-I":
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if ssl_ok:
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mqargs["tls"] = {"cert_reqs": ssl.CERT_NONE}
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else:
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print("No SSL support found")
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sys.exit(1)
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elif opt == "-P":
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password = arg
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elif opt == "-S":
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mqargs["tls"] = {}
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elif opt == "-U":
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username = arg
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if username is None and password is not None:
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print("Password authentication requires username to be set")
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arg_error = True
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if print_usage or arg_error:
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print("Usage: " + sys.argv[0] + " [options...]")
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print("Options:")
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print(" -a: Parse all valid samples")
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print(" -h: Be helpful")
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print(" -n <name>: Hostname of MQTT broker, default: " + host_default)
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print(" -p <num>: Port number to use on MQTT broker")
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print(" -r: Include ping drop run length stats")
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print(" -s <num>: Number of data samples to parse, default: loop interval,")
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print(" if set, else " + str(samples_default))
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print(" -t <num>: Loop interval in seconds or 0 for no loop, default: " +
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str(default_loop_time))
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print(" -v: Be verbose")
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print(" -C <filename>: Enable SSL/TLS using specified CA cert to verify broker")
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print(" -I: Enable SSL/TLS but disable certificate verification (INSECURE!)")
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print(" -P: Set password for username/password authentication")
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print(" -S: Enable SSL/TLS using default CA cert")
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print(" -U: Set username for authentication")
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sys.exit(1 if arg_error else 0)
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if samples is None:
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samples = int(loop_time) if loop_time > 0 else samples_default
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if username is not None:
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mqargs["auth"] = {"username": username}
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if password is not None:
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mqargs["auth"]["password"] = password
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logging.basicConfig(format="%(levelname)s: %(message)s")
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class GlobalState:
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pass
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gstate = GlobalState()
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gstate.dish_id = None
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def conn_error(msg, *args):
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# Connection errors that happen in an interval loop are not critical
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# failures, but are interesting enough to print in non-verbose mode.
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if loop_time > 0:
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print(msg % args)
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else:
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logging.error(msg, *args)
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def loop_body():
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if gstate.dish_id is None:
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try:
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gstate.dish_id = starlink_grpc.get_id()
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if verbose:
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print("Using dish ID: " + gstate.dish_id)
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except starlink_grpc.GrpcError as e:
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conn_error("Failure getting dish ID: %s", str(e))
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return 1
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try:
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g_stats, pd_stats, rl_stats = starlink_grpc.history_ping_stats(samples, verbose)
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except starlink_grpc.GrpcError as e:
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conn_error("Failure getting ping stats: %s", str(e))
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return 1
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topic_prefix = "starlink/dish_ping_stats/" + gstate.dish_id + "/"
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msgs = [(topic_prefix + k, v, 0, False) for k, v in g_stats.items()]
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msgs.extend([(topic_prefix + k, v, 0, False) for k, v in pd_stats.items()])
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if run_lengths:
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for k, v in rl_stats.items():
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if k.startswith("run_"):
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msgs.append((topic_prefix + k, ",".join(str(x) for x in v), 0, False))
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else:
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msgs.append((topic_prefix + k, v, 0, False))
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try:
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paho.mqtt.publish.multiple(msgs, client_id=gstate.dish_id, **mqargs)
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if verbose:
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print("Successfully published to MQTT broker")
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except Exception as e:
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conn_error("Failed publishing to MQTT broker: %s", str(e))
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return 1
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return 0
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next_loop = time.monotonic()
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while True:
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rc = loop_body()
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if loop_time > 0:
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now = time.monotonic()
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next_loop = max(next_loop + loop_time, now)
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time.sleep(next_loop - now)
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else:
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break
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sys.exit(rc)
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if __name__ == '__main__':
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main()
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