tracedetrail.js (1964B)
1 import BaseService from './baseService'; 2 import {urlViaCorsProxy} from '~/lib/CORSProxy'; 3 import L from 'leaflet'; 4 5 class Tracedetrail extends BaseService { 6 urlRe = /^https?:\/\/(?:www\.)?tracedetrail\.[a-z]{2,}.*\/(?:trace\/trace|trace|iframe)\/([0-9]+)/u; 7 8 isOurUrl() { 9 return this.urlRe.test(this.origUrl); 10 } 11 12 requestOptions() { 13 return [{ 14 url: urlViaCorsProxy(this.origUrl), 15 options: { 16 isResponseSuccess: (xhr) => [200, 500].includes(xhr.status), 17 }, 18 }]; 19 } 20 21 parseResponse(responses) { 22 const trackId = this.urlRe.exec(this.origUrl)[1]; 23 let name = `Tracedetrail track ${trackId}`; 24 const response = responses[0]; 25 const documentText = response.responseText; 26 try { 27 const geometryMatch = /geometry\s*:\s*"(.+)",\n/u.exec(documentText); 28 if (!geometryMatch) { 29 let error = 'UNSUPPORTED'; 30 if (documentText.includes("track doesn't exist") || response.status === 500) { 31 error = '{name} was deleted or did not exist'; 32 } else if (documentText.includes('Private track')) { 33 error = '{name} is private'; 34 } 35 return [{name, error}]; 36 } 37 const encodedGeometry = geometryMatch[1]; 38 const titleMatch = /<title>.+:\s*(.+)<\/title>/u.exec(documentText); 39 if (titleMatch) { 40 name = titleMatch[1]; 41 } 42 43 const geometry = JSON.parse(encodedGeometry.replaceAll('\\"', '"')); 44 const proj = L.CRS.EPSG3857; 45 const points = geometry.map((item) => proj.unproject(L.point(item.lon, item.lat))); 46 47 return [{ 48 name, 49 tracks: [points] 50 }]; 51 } catch (e) { 52 return [{name, error: 'UNSUPPORTED'}]; 53 } 54 } 55 } 56 57 export default Tracedetrail;