from datetime import datetime, timezone from owrx.map import Map, LocatorLocation import re from owrx.metrics import Metrics, CounterMetric from owrx.pskreporter import PskReporter from owrx.parser import Parser from owrx.audio import AudioChopperProfile from abc import ABC, abstractmethod import logging logger = logging.getLogger(__name__) class Ft8Profile(AudioChopperProfile): def getInterval(self): return 15 def getFileTimestampFormat(self): return "%y%m%d_%H%M%S" def decoder_commandline(self, file): return ["jt9", "--ft8", "-d", str(self.decoding_depth("ft8")), file] class WsprProfile(AudioChopperProfile): def getInterval(self): return 120 def getFileTimestampFormat(self): return "%y%m%d_%H%M" def decoder_commandline(self, file): cmd = ["wsprd"] if self.decoding_depth("wspr") > 1: cmd += ["-d"] cmd += [file] return cmd class Jt65Profile(AudioChopperProfile): def getInterval(self): return 60 def getFileTimestampFormat(self): return "%y%m%d_%H%M" def decoder_commandline(self, file): return ["jt9", "--jt65", "-d", str(self.decoding_depth("jt65")), file] class Jt9Profile(AudioChopperProfile): def getInterval(self): return 60 def getFileTimestampFormat(self): return "%y%m%d_%H%M" def decoder_commandline(self, file): return ["jt9", "--jt9", "-d", str(self.decoding_depth("jt9")), file] class Ft4Profile(AudioChopperProfile): def getInterval(self): return 7.5 def getFileTimestampFormat(self): return "%y%m%d_%H%M%S" def decoder_commandline(self, file): return ["jt9", "--ft4", "-d", str(self.decoding_depth("ft4")), file] class WsjtParser(Parser): modes = {"~": "FT8", "#": "JT65", "@": "JT9", "+": "FT4"} def parse(self, messages): for data in messages: try: freq, raw_msg = data self.setDialFrequency(freq) msg = raw_msg.decode().rstrip() # known debug messages we know to skip if msg.startswith(""): return if msg.startswith(" EOF on input file"): return modes = list(WsjtParser.modes.keys()) if msg[21] in modes or msg[19] in modes: decoder = Jt9Decoder() else: decoder = WsprDecoder() out = decoder.parse(msg, freq) if "mode" in out: self.pushDecode(out["mode"]) if "callsign" in out and "locator" in out: Map.getSharedInstance().updateLocation( out["callsign"], LocatorLocation(out["locator"]), out["mode"], self.band ) PskReporter.getSharedInstance().spot(out) self.handler.write_wsjt_message(out) except ValueError: logger.exception("error while parsing wsjt message") def pushDecode(self, mode): metrics = Metrics.getSharedInstance() band = "unknown" if self.band is not None: band = self.band.getName() if band is None: band = "unknown" if mode is None: mode = "unknown" name = "wsjt.decodes.{band}.{mode}".format(band=band, mode=mode) metric = metrics.getMetric(name) if metric is None: metric = CounterMetric() metrics.addMetric(name, metric) metric.inc() class Decoder(ABC): def parse_timestamp(self, instring, dateformat): ts = datetime.strptime(instring, dateformat) return int( datetime.combine(datetime.utcnow().date(), ts.time()).replace(tzinfo=timezone.utc).timestamp() * 1000 ) @abstractmethod def parse(self, msg, dial_freq): pass class Jt9Decoder(Decoder): locator_pattern = re.compile("[A-Z0-9]+\\s([A-Z0-9]+)\\s([A-R]{2}[0-9]{2})$") def parse(self, msg, dial_freq): # ft8 sample # '222100 -15 -0.0 508 ~ CQ EA7MJ IM66' # jt65 sample # '2352 -7 0.4 1801 # R0WAS R2ABM KO85' # '0003 -4 0.4 1762 # CQ R2ABM KO85' modes = list(WsjtParser.modes.keys()) if msg[19] in modes: dateformat = "%H%M" else: dateformat = "%H%M%S" timestamp = self.parse_timestamp(msg[0 : len(dateformat)], dateformat) msg = msg[len(dateformat) + 1 :] modeChar = msg[14:15] mode = WsjtParser.modes[modeChar] if modeChar in WsjtParser.modes else "unknown" wsjt_msg = msg[17:53].strip() result = { "timestamp": timestamp, "db": float(msg[0:3]), "dt": float(msg[4:8]), "freq": dial_freq + int(msg[9:13]), "mode": mode, "msg": wsjt_msg, } result.update(self.parseMessage(wsjt_msg)) return result def parseMessage(self, msg): m = Jt9Decoder.locator_pattern.match(msg) if m is None: return {} # this is a valid locator in theory, but it's somewhere in the arctic ocean, near the north pole, so it's very # likely this just means roger roger goodbye. if m.group(2) == "RR73": return {"callsign": m.group(1)} return {"callsign": m.group(1), "locator": m.group(2)} class WsprDecoder(Decoder): wspr_splitter_pattern = re.compile("([A-Z0-9]*)\\s([A-R]{2}[0-9]{2})\\s([0-9]+)") def parse(self, msg, dial_freq): # wspr sample # '2600 -24 0.4 0.001492 -1 G8AXA JO01 33' # '0052 -29 2.6 0.001486 0 G02CWT IO92 23' wsjt_msg = msg[29:].strip() result = { "timestamp": self.parse_timestamp(msg[0:4], "%H%M"), "db": float(msg[5:8]), "dt": float(msg[9:13]), "freq": dial_freq + int(float(msg[14:24]) * 1e6), "drift": int(msg[25:28]), "mode": "WSPR", "msg": wsjt_msg, } result.update(self.parseMessage(wsjt_msg)) return result def parseMessage(self, msg): m = WsprDecoder.wspr_splitter_pattern.match(msg) if m is None: return {} return {"callsign": m.group(1), "locator": m.group(2)}