mirror of
https://github.com/orangecoding/fredy.git
synced 2026-06-16 12:31:07 +00:00
d43c5b3f97
* init map view * switching off 3d buildings when sattelite view is on * rename menu items * upgrading dependencies, adding provider to popups * adding screenshot for map view * fixing readme * next release version
106 lines
2.6 KiB
JavaScript
106 lines
2.6 KiB
JavaScript
/*
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* Copyright (c) 2026 by Christian Kellner.
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* Licensed under Apache-2.0 with Commons Clause and Attribution/Naming Clause
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*/
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import os from 'os';
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import crypto from 'crypto';
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import https from 'https';
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import fetch from 'node-fetch';
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import pThrottle from 'p-throttle';
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import logger from '../../logger.js';
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const API_URL = 'https://nominatim.openstreetmap.org/search';
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const agent = new https.Agent({
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keepAlive: true,
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keepAliveMsecs: 1000,
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});
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const throttle = pThrottle({
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limit: 1,
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interval: 1000,
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});
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function computeMachineId() {
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const hostname = os.hostname() || 'unknown-host';
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const nets = os.networkInterfaces?.() || {};
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const macs = [];
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for (const ifname of Object.keys(nets)) {
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for (const addr of nets[ifname] || []) {
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if (!addr) continue;
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if (addr.internal) continue;
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if (addr.mac && addr.mac !== '00:00:00:00:00:00') macs.push(addr.mac);
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}
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}
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macs.sort();
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const raw = [hostname, os.platform(), os.arch(), ...macs].join('|');
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return crypto.createHash('sha256').update(raw).digest('hex').slice(0, 20);
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}
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/**
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* Nominatim requires a specific User-Agent.
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* Since Fredy is self-hosted, we use a unique machine ID to make it specific.
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*/
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const userAgent = `Fredy-Self-Hosted (${computeMachineId()}; https://github.com/orangecoding/fredy)`;
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let last429 = 0;
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const PAUSE_DURATION = 3600000; // 1 hour
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/**
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* Geocodes an address using Nominatim.
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*
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* @param {string} address - The address to geocode.
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* @returns {Promise<{lat: number, lng: number}|null>} The geocoordinates or null if error. {lat: -1, lng: -1} if not found.
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*/
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async function doGeocode(address) {
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if (Date.now() - last429 < PAUSE_DURATION) {
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return null;
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}
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const url = `${API_URL}?q=${encodeURIComponent(address)}&format=json&countrycodes=de`;
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try {
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const response = await fetch(url, {
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agent,
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headers: {
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'User-Agent': userAgent,
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},
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});
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if (response.status === 429) {
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logger.warn('Nominatim rate limit hit. Pausing for 1 hour.');
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last429 = Date.now();
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return null;
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}
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if (!response.ok) {
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logger.error(`Nominatim API error: ${response.status} ${response.statusText}`);
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return null;
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}
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const data = await response.json();
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if (Array.isArray(data) && data.length > 0) {
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const result = data[0];
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return {
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lat: parseFloat(result.lat),
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lng: parseFloat(result.lon),
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};
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}
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return { lat: -1, lng: -1 };
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} catch (error) {
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logger.error('Error during Nominatim geocoding:', error);
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return null;
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}
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}
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export const geocode = throttle(doGeocode);
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export const isPaused = () => Date.now() - last429 < PAUSE_DURATION;
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