kopia lustrzana https://github.com/glidernet/python-ogn-client
172 wiersze
10 KiB
Python
172 wiersze
10 KiB
Python
import re
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from datetime import datetime
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from ogn.parser.utils import createTimestamp, parseAngle, KNOTS_TO_MS, KPH_TO_MS, FEETS_TO_METER, INCH_TO_MM, fahrenheit_to_celsius, CheapRuler, normalized_quality
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from ogn.parser.pattern import PATTERN_APRS, PATTERN_APRS_POSITION, PATTERN_APRS_POSITION_WEATHER, PATTERN_APRS_STATUS, PATTERN_SERVER
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from ogn.parser.exceptions import AprsParseError
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from ogn.parser.aprs_comment.ogn_parser import OgnParser
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from ogn.parser.aprs_comment.fanet_parser import FanetParser
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from ogn.parser.aprs_comment.lt24_parser import LT24Parser
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from ogn.parser.aprs_comment.naviter_parser import NaviterParser
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from ogn.parser.aprs_comment.flarm_parser import FlarmParser
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from ogn.parser.aprs_comment.tracker_parser import TrackerParser
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from ogn.parser.aprs_comment.receiver_parser import ReceiverParser
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from ogn.parser.aprs_comment.skylines_parser import SkylinesParser
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from ogn.parser.aprs_comment.spider_parser import SpiderParser
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from ogn.parser.aprs_comment.spot_parser import SpotParser
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from ogn.parser.aprs_comment.inreach_parser import InreachParser
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from ogn.parser.aprs_comment.safesky_parser import SafeskyParser
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from ogn.parser.aprs_comment.generic_parser import GenericParser
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positions = {}
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def parse(aprs_message, reference_timestamp=None, calculate_relations=False):
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global positions
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if reference_timestamp is None:
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reference_timestamp = datetime.utcnow()
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message = parse_aprs(aprs_message, reference_timestamp)
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if message['aprs_type'] == 'position' or message['aprs_type'] == 'status':
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message.update(parse_comment(message['comment'],
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dstcall=message['dstcall'],
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aprs_type=message['aprs_type']))
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if message['aprs_type'].startswith('position') and calculate_relations is True:
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positions[message['name']] = (message['longitude'], message['latitude'])
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if message['receiver_name'] in positions:
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cheap_ruler = CheapRuler((message['latitude'] + positions[message['receiver_name']][1]) / 2.0)
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message['distance'] = cheap_ruler.distance((message['longitude'], message['latitude']), positions[message['receiver_name']])
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message['bearing'] = cheap_ruler.bearing((message['longitude'], message['latitude']), positions[message['receiver_name']])
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message['normalized_quality'] = normalized_quality(message['distance'], message['signal_quality']) if 'signal_quality' in message else None
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return message
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def parse_aprs(message, reference_timestamp=None):
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if reference_timestamp is None:
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reference_timestamp = datetime.utcnow()
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result = {'raw_message': message,
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'reference_timestamp': reference_timestamp}
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if message and message[0] == '#':
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match_server = re.search(PATTERN_SERVER, message)
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if match_server:
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result.update({
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'version': match_server.group('version'),
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'timestamp': datetime.strptime(match_server.group('timestamp'), "%d %b %Y %H:%M:%S %Z"),
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'server': match_server.group('server'),
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'ip_address': match_server.group('ip_address'),
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'port': match_server.group('port'),
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'aprs_type': 'server'})
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else:
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result.update({
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'comment': message,
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'aprs_type': 'comment'})
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else:
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match = re.search(PATTERN_APRS, message)
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if match:
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aprs_type = 'position' if match.group('aprs_type') == '/' else 'status' if match.group('aprs_type') == '>' else 'unknown'
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result.update({'aprs_type': aprs_type})
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aprs_body = match.group('aprs_body')
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if aprs_type == 'position':
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match_position = re.search(PATTERN_APRS_POSITION, aprs_body)
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if match_position:
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result.update({
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'name': match.group('callsign'),
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'dstcall': match.group('dstcall'),
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'relay': match.group('relay') if match.group('relay') else None,
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'receiver_name': match.group('receiver'),
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'timestamp': createTimestamp(match_position.group('time'), reference_timestamp),
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'latitude': parseAngle('0' + match_position.group('latitude') + (match_position.group('latitude_enhancement') or '0')) * # noqa: W504
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(-1 if match_position.group('latitude_sign') == 'S' else 1),
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'symboltable': match_position.group('symbol_table'),
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'longitude': parseAngle(match_position.group('longitude') + (match_position.group('longitude_enhancement') or '0')) * # noqa: W504
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(-1 if match_position.group('longitude_sign') == 'W' else 1),
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'symbolcode': match_position.group('symbol'),
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'track': int(match_position.group('course')) if match_position.group('course_extension') else None,
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'ground_speed': int(match_position.group('ground_speed')) * KNOTS_TO_MS / KPH_TO_MS if match_position.group('ground_speed') else None,
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'altitude': int(match_position.group('altitude')) * FEETS_TO_METER if match_position.group('altitude') else None,
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'comment': match_position.group('comment') if match_position.group('comment') else "",
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})
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return result
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match_position_weather = re.search(PATTERN_APRS_POSITION_WEATHER, aprs_body)
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if match_position_weather:
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result.update({
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'aprs_type': 'position_weather',
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'name': match.group('callsign'),
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'dstcall': match.group('dstcall'),
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'relay': match.group('relay') if match.group('relay') else None,
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'receiver_name': match.group('receiver'),
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'timestamp': createTimestamp(match_position_weather.group('time'), reference_timestamp),
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'latitude': parseAngle('0' + match_position_weather.group('latitude')) * # noqa: W504
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(-1 if match_position_weather.group('latitude_sign') == 'S' else 1),
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'symboltable': match_position_weather.group('symbol_table'),
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'longitude': parseAngle(match_position_weather.group('longitude')) * # noqa: W504
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(-1 if match_position_weather.group('longitude_sign') == 'W' else 1),
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'symbolcode': match_position_weather.group('symbol'),
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'wind_direction': int(match_position_weather.group('wind_direction')) if match_position_weather.group('wind_direction') != '...' else None,
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'wind_speed': int(match_position_weather.group('wind_speed')) * KNOTS_TO_MS / KPH_TO_MS if match_position_weather.group('wind_speed') != '...' else None,
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'wind_speed_peak': int(match_position_weather.group('wind_speed_peak')) * KNOTS_TO_MS / KPH_TO_MS if match_position_weather.group('wind_speed_peak') != '...' else None,
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'temperature': fahrenheit_to_celsius(float(match_position_weather.group('temperature'))) if match_position_weather.group('temperature') != '...' else None,
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'rainfall_1h': int(match_position_weather.group('rainfall_1h')) / 100.0 * INCH_TO_MM if match_position_weather.group('rainfall_1h') else None,
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'rainfall_24h': int(match_position_weather.group('rainfall_24h')) / 100.0 * INCH_TO_MM if match_position_weather.group('rainfall_24h') else None,
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'humidity': int(match_position_weather.group('humidity')) * 0.01 if match_position_weather.group('humidity') else None,
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'barometric_pressure': int(match_position_weather.group('barometric_pressure')) if match_position_weather.group('barometric_pressure') else None,
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'comment': match_position_weather.group('comment') if match_position_weather.group('comment') else "",
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})
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return result
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raise AprsParseError(message)
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elif aprs_type == 'status':
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match_status = re.search(PATTERN_APRS_STATUS, aprs_body)
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if match_status:
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result.update({
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'name': match.group('callsign'),
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'dstcall': match.group('dstcall'),
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'receiver_name': match.group('receiver'),
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'timestamp': createTimestamp(match_status.group('time'), reference_timestamp),
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'comment': match_status.group('comment') if match_status.group('comment') else ""})
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else:
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raise NotImplementedError(message)
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else:
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raise AprsParseError(message)
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return result
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dstcall_parser_mapping = {'APRS': OgnParser(),
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'OGNFNT': FanetParser(),
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'OGFLR': FlarmParser(),
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'OGNTRK': TrackerParser(),
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'OGNSDR': ReceiverParser(),
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'OGCAPT': GenericParser(beacon_type='capturs'),
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'OGFLYM': GenericParser(beacon_type='flymaster'),
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'OGINRE': InreachParser(),
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'OGLT24': LT24Parser(),
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'OGNAVI': NaviterParser(),
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'OGPAW': GenericParser(beacon_type='pilot_aware'),
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'OGSKYL': SkylinesParser(),
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'OGSPID': SpiderParser(),
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'OGSPOT': SpotParser(),
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'OGNSKY': SafeskyParser(),
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'GENERIC': GenericParser(beacon_type='unknown'),
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}
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def parse_comment(aprs_comment, dstcall='APRS', aprs_type="position"):
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parser = dstcall_parser_mapping.get(dstcall)
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if parser:
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return parser.parse(aprs_comment, aprs_type)
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else:
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return dstcall_parser_mapping.get('GENERIC').parse(aprs_comment, aprs_type)
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