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Merge branch 'main' into feat/lithuania-cctv
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@@ -164,6 +164,8 @@ export function cctvProxy({ sourceRoot = process.cwd() } = {}) {
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sourceKind:
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source.sourceKind || (source.url ? 'configured' : 'fallback'),
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poseSource: source.poseSource,
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model: source.model || '',
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manufacturer: source.manufacturer || '',
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license: source.license,
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credit: source.credit || '',
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code: source.code || '',
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@@ -19,8 +19,10 @@ import {
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loadNswSourcesFromOpenData,
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loadCalgarySourcesFromOpenData,
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loadDelDOTSourcesFromOpenData,
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loadKingCountySourcesFromOpenData,
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loadVegvesenSourcesFromOpenData,
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loadNycSourcesFromOpenData,
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loadTorontoSourcesFromOpenData,
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} from './sources.js';
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/** Env kill switch: unset or anything but "0" means enabled. */
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@@ -101,6 +103,11 @@ const LIVE_PACKS = [
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enabled: () => envEnabled('CCTV_DELDOT_ENABLED'),
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load: loadDelDOTSourcesFromOpenData,
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},
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{
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name: 'kingcounty',
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enabled: () => envEnabled('CCTV_KINGCOUNTY_ENABLED'),
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load: loadKingCountySourcesFromOpenData,
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},
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{
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name: 'vegvesen',
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enabled: () => envEnabled('CCTV_VEGVESEN_ENABLED'),
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@@ -113,6 +120,11 @@ const LIVE_PACKS = [
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enabled: () => envOptIn('CCTV_NYC_ENABLED'),
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load: loadNycSourcesFromOpenData,
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},
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{
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name: 'toronto',
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enabled: () => envEnabled('CCTV_TORONTO_ENABLED'),
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load: loadTorontoSourcesFromOpenData,
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},
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{
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// Opt-in until the Via Lietuva open-data terms are confirmed to cover the
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// camera photos (see DATA_SOURCES.md).
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@@ -305,6 +305,63 @@ export const DELDOT_ANCHORS = [
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{ lat: 39.1582, lon: -75.5244 }, // Dover (Kent)
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{ lat: 38.6906, lon: -75.3877 }, // Georgetown (Sussex)
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];
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/** King County, WA road cameras: keyless public ArcGIS FeatureServer layer
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* ("King County and WSDOT Traffic Cameras", King County DOT Road Services).
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* GeoJSON with WGS84 point geometry. `outFields` is an explicit list on
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* purpose: the layer also carries asset-administration columns (including
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* staff names in `ModifiedBy`) that must never be fetched. Uniquely among the
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* packs, the county publishes each camera's hardware `Manufacturer`/`Model`
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* (Cohu 3950/3965, Bosch AUTODOME, Axis Q6135-LE, …), carried through as the
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* source's `model`. */
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export const KING_COUNTY_CAMERAS_URL =
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'https://services.arcgis.com/Ej0PsM5Aw677QF1W/arcgis/rest/services/TRAFFICCAMERA_POINT_2029/FeatureServer/0/query?where=1%3D1&outFields=AssetID,Location,ImageURL,Live,Model,Manufacturer,Owner,CurrentStatus&f=geojson';
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/** Frames come only from the county's own image handler host. */
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export const KING_COUNTY_IMAGE_ORIGIN = 'https://info.kingcounty.gov/';
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/** The whole catalog is ~125 rows (~59 live county cameras); no thinning by
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* default. */
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export const DEFAULT_KING_COUNTY_MAX_SOURCES = 125;
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/** Prioritization anchor: Renton, roughly central to the county road network. */
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export const KING_COUNTY_ANCHORS = [{ lat: 47.4829, lon: -122.2171 }];
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/** Hard ceiling on the King County catalog body. The whole layer is ~125 rows
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* and well under 100 KB; this only exists so an upstream that streams an
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* unbounded body cannot be buffered without limit. */
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export const KING_COUNTY_MAX_CATALOG_BYTES = 1024 * 1024;
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/**
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* City of Toronto RESCU traffic cameras: the municipal network the province's
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* 511 pack does not cover — downtown arterials plus the Gardiner, DVP, Allen
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* and Lake Shore. One keyless list for the whole city (~336 cameras), from the
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* City's open data portal. It is fetched on every catalog refresh, but the
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* upstream file is not updated often and may lag the live camera network.
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*
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* The list is served as JSONP (`jsonTMCEarthCamerasCallback({...})`); the
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* portal publishes the same data as .xml and .csv beside it.
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*/
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export const TORONTO_RESCU_LIST_URL =
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'https://opendata.toronto.ca/transportation/tmc/rescucameraimages/Data/tmcearthcameras.json';
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/**
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* The only origin Toronto camera frames may come from. The list carries no URL
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* field: frame URLs are BUILT from this origin and a strictly-digits camera
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* number (`loc####.jpg`, the convention the dataset documents), so no upstream
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* field can steer the frame proxy off-host.
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*/
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export const TORONTO_RESCU_IMAGE_ORIGIN =
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'https://opendata.toronto.ca/transportation/tmc/rescucameraimages/CameraImages/';
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/** The whole city fits under this; the cap exists to stay tunable, not to trim. */
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export const DEFAULT_TORONTO_MAX_SOURCES = 336;
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/** Yonge / Queen: the prioritization anchor. */
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export const TORONTO_DOWNTOWN = { lat: 43.6532, lon: -79.3832 };
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/** The city climbs from 76 m at the lake to 209 m at Steeles, so no single
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* number fits: this is the mean across the 336 camera sites. The ground-height
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* sidecar has no Toronto entries yet, so this prior seeds placement; a camera
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* that gains a sidecar entry uses it instead, and the client's ground snap
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* corrects the prior wherever 3D tiles are loaded. */
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export const TORONTO_GROUND_ELEVATION_M = 116;
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/** Hard ceiling on the RESCU list body. The whole city is ~336 rows and under
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* 60 KB; this only exists so an upstream that streams an unbounded body cannot
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* be buffered without limit. */
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export const TORONTO_MAX_CATALOG_BYTES = 4 * 1024 * 1024;
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/** Camera CATALOGS change rarely; 15 min keeps multi-megabyte upstream list refetches (Austin rows.json + 4 Caltrans districts + TfL + Ontario 511) infrequent. Frames are fetched per-request and are unaffected. */
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export const CCTV_SOURCE_CACHE_MS = 15 * 60 * 1000;
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/** Per-provider catalog-fetch timeout. Bounds the worst-case refresh so one
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@@ -562,5 +562,30 @@ export function normalizeSourceItem(item) {
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// badge can distinguish them from raw automated priors (e.g. Austin Open
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// Data, which never sets this field). Passed through as-is to the client.
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poseSource: item.poseSource === 'curated' ? 'curated' : undefined,
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// Optional hardware-model passthrough (additive, like poseSource): packs
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// whose catalog publishes the camera's hardware model — King County's
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// layer carries Manufacturer/Model per camera — pass it through so
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// identified-hardware consumers can use it. Absent everywhere else.
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model:
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typeof item.model === 'string' && item.model.trim()
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? item.model.trim()
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: undefined,
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// Bare model strings collide across vendors (e.g. "3950"), so the
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// publishing pack's manufacturer rides along for disambiguation.
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manufacturer:
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typeof item.manufacturer === 'string' && item.manufacturer.trim()
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? item.manufacturer.trim()
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: undefined,
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};
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}
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/** City of Toronto bounding box (Steeles to the lake, Etobicoke to Scarborough). */
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export function isLikelyTorontoCoordinate(lat, lon) {
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return (
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isPlausibleLatLon(lat, lon) &&
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lat >= 43.55 &&
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lat <= 43.9 &&
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lon >= -79.7 &&
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lon <= -79.1
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);
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}
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@@ -55,10 +55,21 @@ import {
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DEFAULT_CALGARY_MAX_SOURCES,
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CALGARY_DOWNTOWN,
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CALGARY_MAX_CATALOG_BYTES,
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TORONTO_RESCU_LIST_URL,
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TORONTO_RESCU_IMAGE_ORIGIN,
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DEFAULT_TORONTO_MAX_SOURCES,
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TORONTO_DOWNTOWN,
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TORONTO_GROUND_ELEVATION_M,
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TORONTO_MAX_CATALOG_BYTES,
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CCTV_SOURCE_FETCH_TIMEOUT_MS,
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DELDOT_CCTV_URL,
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DEFAULT_DELDOT_MAX_SOURCES,
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DELDOT_ANCHORS,
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KING_COUNTY_CAMERAS_URL,
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KING_COUNTY_IMAGE_ORIGIN,
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DEFAULT_KING_COUNTY_MAX_SOURCES,
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KING_COUNTY_ANCHORS,
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KING_COUNTY_MAX_CATALOG_BYTES,
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DEFAULT_VEGVESEN_CCTV_URL,
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VEGVESEN_IMAGE_ORIGIN,
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VEGVESEN_VIDEO_URL,
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@@ -91,12 +102,16 @@ import {
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isLikelyCalgaryCoordinate,
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isLikelyNycCoordinate,
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isLikelyNorwayCoordinate,
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isLikelyTorontoCoordinate,
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cameraDisplayCode,
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rowArrayToObject,
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prioritizeSources,
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} from './normalize.js';
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import { directionToHeading } from '../../../src/data/directionText.js';
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import { readResponseJsonCapped } from '../common/http.js';
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import {
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readResponseJsonCapped,
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readResponseTextCapped,
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} from '../common/http.js';
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/**
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* Fetch and parse Austin traffic camera records from the city Open Data portal.
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*
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@@ -1717,6 +1732,165 @@ export async function loadDelDOTSourcesFromOpenData() {
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}
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}
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/** Rough King County, WA bounding box. */
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function isLikelyKingCountyCoordinate(lat, lon) {
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return (
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Number.isFinite(lat) &&
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Number.isFinite(lon) &&
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lat >= 47.0 &&
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lat <= 48.0 &&
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lon >= -123.1 &&
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lon <= -121.0
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);
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}
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/**
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* A King County `Model` value, whitespace-collapsed, or '' when it is a
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* vendor-generic string ("PTZ", "PTZ IP", "BOSCH/PTZ") that names no model.
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*/
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function kingCountyModel(raw) {
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const model = String(raw || '')
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.replace(/\s+/g, ' ')
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.trim();
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return /^(?:[a-z]+\/)?ptz(?: ip)?$/i.test(model) ? '' : model;
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}
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/**
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* Fetch King County road cameras (Washington State). Keyless: one public
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* ArcGIS FeatureServer GeoJSON query (King County DOT Road Services), with an
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* explicit `outFields` list so the layer's asset-administration columns are
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* never fetched. Only cameras that are live and active (`Live`,
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* `CurrentStatus`) with a positive integer id, finite in-county coordinates,
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* and a frame on the county's own image handler are kept. WSDOT-owned rows in
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* the layer are skipped because their frames are WSDOT-hosted, outside the
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* pinned image origin, while partner-city cameras hosted on the county image
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* handler (e.g. Newcastle) name their owner as the per-camera credit,
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* DriveBC-style. The layer publishes no facing, so every heading is the id
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* hash at low confidence.
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*
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* Uniquely among the packs, the county publishes each camera's hardware
|
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* `Manufacturer`/`Model`; the model string (whitespace-collapsed — the feed
|
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* carries stray newlines) rides along as the source's `model` for
|
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* identified-hardware consumers. Vendor-generic strings ("PTZ", "PTZ IP",
|
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* "BOSCH/PTZ") name no model and are treated as absent.
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*
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* @returns {Promise<Array<object>>} Normalized camera source objects.
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*/
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export async function loadKingCountySourcesFromOpenData() {
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try {
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const resp = await fetch(KING_COUNTY_CAMERAS_URL, {
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headers: { Accept: 'application/json' },
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redirect: 'manual',
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signal: AbortSignal.timeout(CCTV_SOURCE_FETCH_TIMEOUT_MS),
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});
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// A response this loader will not read still owns its transport until the
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// body is released, so every rejection path cancels before returning.
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const discard = async () => {
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try {
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await resp.body?.cancel();
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} catch {
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/* no-op */
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}
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return [];
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};
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if (resp.status >= 300 && resp.status < 400) {
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console.warn(
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'[CCTV] King County catalog redirected; redirects are not followed',
|
||||
);
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return discard();
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}
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if (!resp.ok) {
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console.warn('[CCTV] King County camera download failed:', resp.status);
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return discard();
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}
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const payload = await readResponseJsonCapped(
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resp,
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KING_COUNTY_MAX_CATALOG_BYTES,
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||||
);
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const rows = Array.isArray(payload?.features) ? payload.features : [];
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const cameras = [];
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const seen = new Set();
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for (const row of rows) {
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const attrs = row?.properties;
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const rawId = attrs?.AssetID;
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if (!Number.isSafeInteger(rawId) || rawId <= 0) continue;
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if (attrs.Live !== 1) continue;
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if (String(attrs.CurrentStatus || '').trim() !== 'Active') continue;
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const owner = String(attrs.Owner || '').trim();
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||||
// WSDOT-owned rows serve WSDOT-hosted frames, outside the pinned
|
||||
// county image origin, so they are skipped.
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||||
if (owner === 'WSDOT') continue;
|
||||
// The handler is served over HTTPS; the feed still writes http://.
|
||||
const imageUrl = String(attrs.ImageURL || '')
|
||||
.trim()
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||||
.replace(/^http:\/\/info\.kingcounty\.gov\//, KING_COUNTY_IMAGE_ORIGIN);
|
||||
if (!imageUrl.startsWith(KING_COUNTY_IMAGE_ORIGIN)) continue;
|
||||
const [lon, lat] = Array.isArray(row?.geometry?.coordinates)
|
||||
? row.geometry.coordinates
|
||||
: [];
|
||||
if (!isLikelyKingCountyCoordinate(lat, lon)) continue;
|
||||
|
||||
const cameraId = `kingcounty-${rawId}`;
|
||||
if (seen.has(cameraId)) continue;
|
||||
seen.add(cameraId);
|
||||
const model = kingCountyModel(attrs.Model);
|
||||
const manufacturer = String(attrs.Manufacturer || '')
|
||||
.replace(/\s+/g, ' ')
|
||||
.trim();
|
||||
const camera = {
|
||||
id: cameraId,
|
||||
name:
|
||||
String(attrs.Location || '').trim() || `King County camera ${rawId}`,
|
||||
city: 'King County',
|
||||
cityId: 'king-county',
|
||||
provider: 'King County Road Services',
|
||||
lat,
|
||||
lon,
|
||||
headingDeg: fallbackHeadingFromId(cameraId),
|
||||
headingConfidence: 'low',
|
||||
// The low-confidence pose personality shared by the other packs.
|
||||
pitchDeg: -18,
|
||||
fovDeg: 44,
|
||||
rangeM: 145,
|
||||
mountHeightM: 8,
|
||||
feedType: 'image',
|
||||
url: imageUrl,
|
||||
snapshotUrl: imageUrl,
|
||||
sourceKind: 'kingcounty-open-data',
|
||||
license: 'King County GIS open data (KCGIS Center terms of use)',
|
||||
credit: owner && owner !== 'King County' ? owner : '',
|
||||
};
|
||||
if (model) camera.model = model;
|
||||
if (model && manufacturer) camera.manufacturer = manufacturer;
|
||||
cameras.push(camera);
|
||||
}
|
||||
|
||||
const maxRaw = Number(
|
||||
process.env.CCTV_KINGCOUNTY_MAX_SOURCES ||
|
||||
DEFAULT_KING_COUNTY_MAX_SOURCES,
|
||||
);
|
||||
const maxCount = Number.isFinite(maxRaw)
|
||||
? Math.max(8, Math.min(1200, Math.floor(maxRaw)))
|
||||
: DEFAULT_KING_COUNTY_MAX_SOURCES;
|
||||
const prioritized = prioritizeSources(
|
||||
cameras,
|
||||
maxCount,
|
||||
KING_COUNTY_ANCHORS,
|
||||
);
|
||||
console.log(
|
||||
`[CCTV] Loaded King County camera sources: ${cameras.length} published (using nearest ${prioritized.length})`,
|
||||
);
|
||||
return prioritized;
|
||||
} catch (error) {
|
||||
console.warn(
|
||||
'[CCTV] King County camera download error:',
|
||||
error?.message || error,
|
||||
);
|
||||
return [];
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* One Statens vegvesen `CctvSimple` feature -> one catalog source, or null.
|
||||
*
|
||||
@@ -2016,3 +2190,172 @@ export async function loadNycSourcesFromOpenData() {
|
||||
return [];
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* The JSONP envelope the City of Toronto wraps its camera list in. Anchored at
|
||||
* both ends, so only that exact callback is unwrapped — a payload that merely
|
||||
* contains the name somewhere is not treated as the list.
|
||||
*/
|
||||
const RESCU_JSONP = /^jsonTMCEarthCamerasCallback\(([\s\S]*)\)\s*;?$/;
|
||||
|
||||
/**
|
||||
* Unwrap the RESCU camera list. The portal serves the list as JSONP; should it
|
||||
* ever drop the wrapper, the bare JSON document still parses. Anything else —
|
||||
* a foreign callback, a truncated body, an error page — yields no cameras
|
||||
* rather than a thrown loader.
|
||||
*
|
||||
* @param {string} text - Raw response body.
|
||||
* @returns {Array<object>} The `Data` rows, or [] when the body is unusable.
|
||||
*/
|
||||
export function parseRescuCameraList(text) {
|
||||
const body = String(text ?? '').trim();
|
||||
if (!body) return [];
|
||||
const unwrapped = RESCU_JSONP.exec(body)?.[1] ?? body;
|
||||
try {
|
||||
const parsed = JSON.parse(unwrapped);
|
||||
const rows = parsed?.Data ?? parsed?.data;
|
||||
return Array.isArray(rows) ? rows : [];
|
||||
} catch {
|
||||
return [];
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Convert one RESCU list row into a camera source.
|
||||
*
|
||||
* The row carries no URL: the frame URL is built from the documented
|
||||
* `loc####.jpg` convention and a camera number validated as plain digits, so
|
||||
* the frame proxy is pinned to the city origin by construction and no upstream
|
||||
* field — present or planted — can steer it.
|
||||
*
|
||||
* No compass heading exists in this dataset. `D1`-`D4` are the directions of
|
||||
* the *comparison* images (static reference stills captured in 2016, served
|
||||
* from a different path); the live frame is one pan-tilt-zoom camera pointing
|
||||
* wherever the operator left it. Treating those letters as a facing would put
|
||||
* a confident, wrong bearing on every camera in the city, so every row takes
|
||||
* the id-hash fallback and the low-confidence pose, as headingless Austin,
|
||||
* TfL, Fintraffic and Calgary cameras do.
|
||||
*
|
||||
* @param {object} row - One entry from the RESCU `Data` array.
|
||||
* @returns {object|null} Normalized camera source, or null when unusable.
|
||||
*/
|
||||
export function torontoCameraToSource(row) {
|
||||
if (!row || typeof row !== 'object') return null;
|
||||
const number = String(row.Number ?? row.number ?? '').trim();
|
||||
// Plain digits only: a number is about to become a URL path segment.
|
||||
if (!/^\d{1,6}$/.test(number)) return null;
|
||||
|
||||
const lat = toFiniteNumber(row.Latitude ?? row.latitude);
|
||||
const lon = toFiniteNumber(row.Longitude ?? row.longitude);
|
||||
if (!isLikelyTorontoCoordinate(lat, lon)) return null;
|
||||
|
||||
const cameraId = `toronto-${number}`;
|
||||
// The feed's own label, verbatim. It is upper-case ("MCCOWAN RD", "ST
|
||||
// HELEN'S AVE"); title-casing it would mangle more names than it fixed.
|
||||
const name =
|
||||
String(row.Name ?? row.name ?? '')
|
||||
.replace(/\s+/g, ' ')
|
||||
.trim() || `Toronto Camera ${number}`;
|
||||
|
||||
return {
|
||||
id: cameraId,
|
||||
name,
|
||||
city: 'Toronto',
|
||||
cityId: 'toronto',
|
||||
provider: 'City of Toronto',
|
||||
lat,
|
||||
lon,
|
||||
headingDeg: fallbackHeadingFromId(cameraId),
|
||||
headingConfidence: 'low',
|
||||
pitchDeg: -18,
|
||||
fovDeg: 44,
|
||||
rangeM: 145,
|
||||
mountHeightM: 8,
|
||||
groundElevationM: TORONTO_GROUND_ELEVATION_M,
|
||||
feedType: 'image',
|
||||
url: `${TORONTO_RESCU_IMAGE_ORIGIN}loc${number}.jpg`,
|
||||
snapshotUrl: `${TORONTO_RESCU_IMAGE_ORIGIN}loc${number}.jpg`,
|
||||
sourceKind: 'toronto-rescu-open-data',
|
||||
license:
|
||||
'Contains information licensed under the Open Government Licence – Toronto',
|
||||
// Unselected-label code: the intersection, so a camera at rest reads as a
|
||||
// place rather than as its id.
|
||||
code: cameraDisplayCode(name.toUpperCase()),
|
||||
};
|
||||
}
|
||||
|
||||
/**
|
||||
* Fetch City of Toronto RESCU traffic cameras from the City's open data
|
||||
* portal, keyless. One JSONP list for the whole city; frames are stills on the
|
||||
* same portal origin.
|
||||
*
|
||||
* The list fetch refuses redirects (`redirect: 'manual'`) so the list host
|
||||
* cannot be steered, and caps the body it will buffer.
|
||||
*
|
||||
* Attribution: Open Government Licence – Toronto, registered in
|
||||
* src/data/dataCredits.js.
|
||||
*
|
||||
* @returns {Promise<Array<object>>} Normalized camera source objects.
|
||||
*/
|
||||
export async function loadTorontoSourcesFromOpenData() {
|
||||
try {
|
||||
const endpoint =
|
||||
process.env.CCTV_TORONTO_LIST_URL || TORONTO_RESCU_LIST_URL;
|
||||
const resp = await fetch(endpoint, {
|
||||
headers: { Accept: 'application/json, text/javascript' },
|
||||
redirect: 'manual',
|
||||
signal: AbortSignal.timeout(CCTV_SOURCE_FETCH_TIMEOUT_MS),
|
||||
});
|
||||
// A response this loader will not read still owns its transport until the
|
||||
// body is released, so every rejection path cancels before returning.
|
||||
const discard = async () => {
|
||||
try {
|
||||
await resp.body?.cancel();
|
||||
} catch {
|
||||
/* no-op */
|
||||
}
|
||||
return [];
|
||||
};
|
||||
if (resp.status >= 300 && resp.status < 400) {
|
||||
console.warn(
|
||||
'[CCTV] Toronto camera list redirected; redirects are not followed',
|
||||
);
|
||||
return discard();
|
||||
}
|
||||
if (!resp.ok) {
|
||||
console.warn('[CCTV] Toronto camera download failed:', resp.status);
|
||||
return discard();
|
||||
}
|
||||
const text = await readResponseTextCapped(resp, TORONTO_MAX_CATALOG_BYTES);
|
||||
const rows = parseRescuCameraList(text);
|
||||
if (!rows.length) return [];
|
||||
|
||||
const cameras = [];
|
||||
const seen = new Set();
|
||||
for (const record of rows) {
|
||||
const camera = torontoCameraToSource(record);
|
||||
if (!camera || seen.has(camera.id)) continue;
|
||||
seen.add(camera.id);
|
||||
cameras.push(camera);
|
||||
}
|
||||
const maxRaw = Number(
|
||||
process.env.CCTV_TORONTO_MAX_SOURCES || DEFAULT_TORONTO_MAX_SOURCES,
|
||||
);
|
||||
const maxCount = Number.isFinite(maxRaw)
|
||||
? Math.max(8, Math.min(500, Math.floor(maxRaw)))
|
||||
: DEFAULT_TORONTO_MAX_SOURCES;
|
||||
const prioritized = prioritizeSources(cameras, maxCount, [
|
||||
TORONTO_DOWNTOWN,
|
||||
]);
|
||||
console.log(
|
||||
`[CCTV] Loaded Toronto camera sources: ${cameras.length} (using nearest ${prioritized.length})`,
|
||||
);
|
||||
return prioritized;
|
||||
} catch (error) {
|
||||
console.warn(
|
||||
'[CCTV] Toronto camera download error:',
|
||||
error?.message || error,
|
||||
);
|
||||
return [];
|
||||
}
|
||||
}
|
||||
Reference in new issue
Block a user