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https://github.com/Kpa-clawbot/meshcore-analyzer.git
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90881f0676
Layer 1 (GPS, bridge-proof): Nodes with lat/lon are checked via haversine distance to the observer IATA center. Only nodes within 300km are considered regional. Bridged WA nodes appearing in SJC MQTT feeds are correctly rejected because their GPS coords are 1100km+ from SJC. Layer 2 (observer-based, fallback): Nodes without GPS fall back to _advertByObserver index — were they seen by a regional observer? Less precise but still useful for nodes that never sent ADVERTs with coordinates. Layer 3: Global fallback, flagged. New module: iata-coords.js with 60+ IATA airport coordinates + haversine distance function. API response now includes filterMethod (geo/observer/none) and distKm per conflict candidate. Tests: 22 unit tests (haversine, boundaries, cross-regional collision sim, layered fallback, bridge rejection).
91 lines
3.4 KiB
JavaScript
91 lines
3.4 KiB
JavaScript
// IATA airport coordinates for regional node filtering
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// Used by resolve-hops to determine if a node is geographically near an observer's region
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const IATA_COORDS = {
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// US West Coast
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SJC: { lat: 37.3626, lon: -121.9290 },
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SFO: { lat: 37.6213, lon: -122.3790 },
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OAK: { lat: 37.7213, lon: -122.2208 },
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SEA: { lat: 47.4502, lon: -122.3088 },
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PDX: { lat: 45.5898, lon: -122.5951 },
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LAX: { lat: 33.9425, lon: -118.4081 },
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SAN: { lat: 32.7338, lon: -117.1933 },
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SMF: { lat: 38.6954, lon: -121.5908 },
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MRY: { lat: 36.5870, lon: -121.8430 },
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EUG: { lat: 44.1246, lon: -123.2119 },
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RDD: { lat: 40.5090, lon: -122.2934 },
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MFR: { lat: 42.3742, lon: -122.8735 },
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FAT: { lat: 36.7762, lon: -119.7181 },
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SBA: { lat: 34.4262, lon: -119.8405 },
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RNO: { lat: 39.4991, lon: -119.7681 },
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BOI: { lat: 43.5644, lon: -116.2228 },
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LAS: { lat: 36.0840, lon: -115.1537 },
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PHX: { lat: 33.4373, lon: -112.0078 },
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SLC: { lat: 40.7884, lon: -111.9778 },
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// US Mountain/Central
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DEN: { lat: 39.8561, lon: -104.6737 },
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DFW: { lat: 32.8998, lon: -97.0403 },
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IAH: { lat: 29.9844, lon: -95.3414 },
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AUS: { lat: 30.1975, lon: -97.6664 },
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MSP: { lat: 44.8848, lon: -93.2223 },
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// US East Coast
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ATL: { lat: 33.6407, lon: -84.4277 },
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ORD: { lat: 41.9742, lon: -87.9073 },
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JFK: { lat: 40.6413, lon: -73.7781 },
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EWR: { lat: 40.6895, lon: -74.1745 },
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BOS: { lat: 42.3656, lon: -71.0096 },
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MIA: { lat: 25.7959, lon: -80.2870 },
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IAD: { lat: 38.9531, lon: -77.4565 },
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CLT: { lat: 35.2144, lon: -80.9473 },
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DTW: { lat: 42.2124, lon: -83.3534 },
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MCO: { lat: 28.4312, lon: -81.3081 },
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BNA: { lat: 36.1263, lon: -86.6774 },
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RDU: { lat: 35.8801, lon: -78.7880 },
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// Canada
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YVR: { lat: 49.1967, lon: -123.1815 },
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YYZ: { lat: 43.6777, lon: -79.6248 },
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YYC: { lat: 51.1215, lon: -114.0076 },
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YEG: { lat: 53.3097, lon: -113.5800 },
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YOW: { lat: 45.3225, lon: -75.6692 },
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// Europe
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LHR: { lat: 51.4700, lon: -0.4543 },
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CDG: { lat: 49.0097, lon: 2.5479 },
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FRA: { lat: 50.0379, lon: 8.5622 },
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AMS: { lat: 52.3105, lon: 4.7683 },
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MUC: { lat: 48.3537, lon: 11.7750 },
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SOF: { lat: 42.6952, lon: 23.4062 },
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// Asia/Pacific
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NRT: { lat: 35.7720, lon: 140.3929 },
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HND: { lat: 35.5494, lon: 139.7798 },
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ICN: { lat: 37.4602, lon: 126.4407 },
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SYD: { lat: -33.9461, lon: 151.1772 },
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MEL: { lat: -37.6690, lon: 144.8410 },
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};
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// Haversine distance in km
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function haversineKm(lat1, lon1, lat2, lon2) {
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const R = 6371;
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const dLat = (lat2 - lat1) * Math.PI / 180;
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const dLon = (lon2 - lon1) * Math.PI / 180;
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const a = Math.sin(dLat / 2) ** 2 +
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Math.cos(lat1 * Math.PI / 180) * Math.cos(lat2 * Math.PI / 180) *
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Math.sin(dLon / 2) ** 2;
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return R * 2 * Math.atan2(Math.sqrt(a), Math.sqrt(1 - a));
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}
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// Default radius for "near region" — LoRa max realistic range ~300km
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const DEFAULT_REGION_RADIUS_KM = 300;
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/**
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* Check if a node is geographically within radius of an IATA region center.
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* Returns { near: boolean, distKm: number } or null if can't determine.
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*/
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function nodeNearRegion(nodeLat, nodeLon, iata, radiusKm = DEFAULT_REGION_RADIUS_KM) {
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const center = IATA_COORDS[iata];
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if (!center) return null;
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if (nodeLat == null || nodeLon == null || (nodeLat === 0 && nodeLon === 0)) return null;
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const distKm = haversineKm(nodeLat, nodeLon, center.lat, center.lon);
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return { near: distKm <= radiusKm, distKm: Math.round(distKm) };
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}
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module.exports = { IATA_COORDS, haversineKm, nodeNearRegion, DEFAULT_REGION_RADIUS_KM };
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