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56 lines
2.5 KiB
Python
56 lines
2.5 KiB
Python
import csv
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import json
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import logging
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from datetime import datetime
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import pytz
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from data.sig_ref import SIGRef
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from data.spot import Spot
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from spotproviders.websocket_spot_provider import WebsocketSpotProvider
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# Spot provider for servers based on the "xOTA" software at https://github.com/nischu/xOTA/
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# The provider typically doesn't give us a lat/lon or SIG explicitly, so our own config provides a SIG and a reference
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# to a local CSV file with location information. This functionality is implemented for TOTA events, of which there are
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# several - so a plain lookup of a "TOTA reference" doesn't make sense, it depends on which TOTA and hence which server
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# supplied the data, which is why the CSV location lookup is here and not in sig_utils.
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class XOTA(WebsocketSpotProvider):
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LOCATION_DATA = {}
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SIG = None
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def __init__(self, provider_config):
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super().__init__(provider_config, provider_config["url"])
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locations_csv = provider_config["locations-csv"] if "locations-csv" in provider_config else None
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self.SIG = provider_config["sig"] if "sig" in provider_config else None
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# Load location data
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if locations_csv:
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try:
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f = open(locations_csv)
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csv_data = f.read()
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dr = csv.DictReader(csv_data.splitlines())
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for row in dr:
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self.LOCATION_DATA[row["ref"]] = {"lat": row["lat"], "lon": row["lon"]}
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except:
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logging.exception("Could not look up location data for XOTA source.")
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def ws_message_to_spot(self, bytes):
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string = bytes.decode("utf-8")
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source_spot = json.loads(string)
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ref_id = source_spot["reference"]["title"]
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lat = float(self.LOCATION_DATA[ref_id]["lat"]) if ref_id in self.LOCATION_DATA else None
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lon = float(self.LOCATION_DATA[ref_id]["lon"]) if ref_id in self.LOCATION_DATA else None
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spot = Spot(source=self.name,
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source_id=source_spot["id"],
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dx_call=source_spot["stationCallSign"].upper(),
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freq=float(source_spot["freq"]) * 1000,
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mode=source_spot["mode"].upper(),
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sig=self.SIG,
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sig_refs=[SIGRef(id=ref_id, sig=self.SIG, url=source_spot["reference"]["website"], latitude=lat, longitude=lon)],
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time=datetime.now(pytz.UTC).timestamp(),
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dx_latitude=lat,
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dx_longitude=lon,
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qrt=source_spot["state"] != "active")
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return spot
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