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"use strict";
window.browser = window.browser || window.chrome;
import utils from './utils.js'
const targets = /^https?:\/{2}(((www|maps)\.)?(google\.).*(\/maps)|maps\.(google\.).*)/;
let redirects = {
'osm': {
"normal": [
"https://openstreetmap.org"
]
},
'facil': {
"normal": [
"https://facilmap.org"
]
}
};
let
disableMaps,
mapsFrontend,
facilNormalRedirectsChecks,
facilNormalCustomRedirects;
function init() {
browser.storage.local.get(
[
"disableMaps",
"mapsFrontend",
"facilNormalRedirectsChecks",
"facilNormalCustomRedirects",
],
r => {
disableMaps = r.disableMaps;
mapsFrontend = r.mapsFrontend;
facilNormalRedirectsChecks = r.facilNormalRedirectsChecks;
facilNormalCustomRedirects = r.facilNormalCustomRedirects;
}
)
}
init();
browser.storage.onChanged.addListener(init)
function redirect(url, initiator) {
const mapCentreRegex = /@(-?\d[0-9.]*),(-?\d[0-9.]*),(\d{1,2})[.z]/;
const dataLatLngRegex = /!3d(-?[0-9]{1,}.[0-9]{1,})!4d(-?[0-9]{1,}.[0-9]{1,})/;
const placeRegex = /\/place\/(.*)\//;
const travelModes = {
driving: "fossgis_osrm_car",
walking: "fossgis_osrm_foot",
bicycling: "fossgis_osrm_bike",
transit: "fossgis_osrm_car", // not implemented on OSM, default to car.
};
const travelModesFacil = {
driving: "car",
walking: "pedestrian",
bicycling: "bicycle",
transit: "car", // not implemented on Facil, default to car.
};
const osmLayers = {
none: "S",
transit: "T",
traffic: "S", // not implemented on OSM, default to standard.
bicycling: "C",
};
function addressToLatLng(address) {
const xmlhttp = new XMLHttpRequest();
xmlhttp.open("GET", `https://nominatim.openstreetmap.org/search/${address}?format=json&limit=1`, false);
xmlhttp.send();
if (xmlhttp.status === 200) {
const json = JSON.parse(xmlhttp.responseText)[0];
if (json) {
console.log('json', json)
return [
`${json.lat},${json.lon}`,
`${json.boundingbox[2]},${json.boundingbox[1]},${json.boundingbox[3]},${json.boundingbox[0]}`,
];
}
}
console.info("Error: Status is " + xmlhttp.status);
}
if (disableMaps) return;
if (initiator && initiator.host === "earth.google.com") return;
if (!url.href.match(targets)) return;
let randomInstance;
if (mapsFrontend == 'osm') randomInstance = utils.getRandomInstance(redirects.osm.normal);
if (mapsFrontend == 'facil') randomInstance = utils.getRandomInstance([...facilNormalRedirectsChecks, ...facilNormalCustomRedirects]);
let mapCentre = "#";
let prefs = {};
if (url.pathname.match(mapCentreRegex)) { // Set map centre if present
var [, lat, lon, zoom] = url.pathname.match(mapCentreRegex);
} else if (url.searchParams.has("center")) {
var [lat, lon] = url.searchParams.get("center").split(",");
var zoom = url.searchParams.get("zoom") ?? "17";
}
if (lat && lon && zoom) {
if (mapsFrontend == 'osm') mapCentre = `#map=${zoom}/${lat}/${lon}`;
if (mapsFrontend == 'facil') mapCentre = `#${zoom}/${lat}/${lon}`;
}
if (url.searchParams.get("layer")) prefs.layers = osmLayers[url.searchParams.get("layer")];
if (url.pathname.includes("/embed")) { // Handle Google Maps Embed API
// https://www.google.com/maps/embed/v1/place?key=AIzaSyD4iE2xVSpkLLOXoyqT-RuPwURN3ddScAI&q=Eiffel+Tower,Paris+France
console.log("embed life");
let query = "";
if (url.searchParams.has("q")) query = url.searchParams.get("q");
else if (url.searchParams.has("query")) query = url.searchParams.has("query");
else if (url.searchParams.has("pb"))
try { query = url.searchParams.get("pb").split(/!2s(.*?)!/)[1]; }
catch (error) { console.error(error); } // Unable to find map marker in URL.
let [coords, boundingbox] = addressToLatLng(query);
prefs.bbox = boundingbox;
prefs.marker = coords;
prefs.layer = "mapnik";
let prefsEncoded = new URLSearchParams(prefs).toString();
if (mapsFrontend == 'osm') return `${randomInstance}/export/embed.html?${prefsEncoded}`;
if (mapsFrontend == 'facil') return `${randomInstance}/#q=${query}`;
} else if (url.pathname.includes("/dir")) { // Handle Google Maps Directions
// https://www.google.com/maps/dir/?api=1&origin=Space+Needle+Seattle+WA&destination=Pike+Place+Market+Seattle+WA&travelmode=bicycling
let travMod = url.searchParams.get("travelmode");
if (url.searchParams.has("travelmode")) prefs.engine = travelModes[travMod];
let orgVal = url.searchParams.get("origin");
let destVal = url.searchParams.get("destination");
let org; addressToLatLng(orgVal, a => org = a);
let dest; addressToLatLng(destVal, a => dest = a);
prefs.route = `${org};${dest}`;
let prefsEncoded = new URLSearchParams(prefs).toString();
if (mapsFrontend == 'osm') return `${randomInstance}/directions?${prefsEncoded}${mapCentre}`;
if (mapsFrontend == 'facil') return `${randomInstance}/#q=${orgVal}%20to%20${destVal}%20by%20${travelModesFacil[travMod]}`;
} else if (url.pathname.includes("data=") && url.pathname.match(dataLatLngRegex)) { // Get marker from data attribute
// https://www.google.com/maps/place/41%C2%B001'58.2%22N+40%C2%B029'18.2%22E/@41.032833,40.4862063,17z/data=!3m1!4b1!4m6!3m5!1s0x0:0xf64286eaf72fc49d!7e2!8m2!3d41.0328329!4d40.4883948
console.log("data life");
let [, mlat, mlon] = url.pathname.match(dataLatLngRegex);
if (mapsFrontend == 'osm') return `${randomInstance}/search?query=${mlat}%2C${mlon}`;
if (mapsFrontend == 'facil') return `${randomInstance}/#q=${mlat}%2C${mlon}`;
} else if (url.searchParams.has("ll")) { // Get marker from ll param
// https://maps.google.com/?ll=38.882147,-76.99017
console.log("ll life");
const [mlat, mlon] = url.searchParams.get("ll").split(",");
if (mapsFrontend == 'osm') return `${randomInstance}/search?query=${mlat}%2C${mlon}`;
if (mapsFrontend == 'facil') return `${randomInstance}/#q=${mlat}%2C${mlon}`
} else if (url.searchParams.has("viewpoint")) { // Get marker from viewpoint param.
// https://www.google.com/maps/@?api=1&map_action=pano&viewpoint=48.857832,2.295226&heading=-45&pitch=38&fov=80
console.log("viewpoint life");
const [mlat, mlon] = url.searchParams.get("viewpoint").split(",");
if (mapsFrontend == 'osm') return `${randomInstance}/search?query=${mlat}%2C${mlon}`;
if (mapsFrontend == 'facil') return `${randomInstance}/#q=${mlat}%2C${mlon}`;
} else { // Use query as search if present.
console.log("normal life");
let query;
if (url.searchParams.has("q")) query = url.searchParams.get("q");
else if (url.searchParams.has("query")) query = url.searchParams.get("query");
else if (url.pathname.match(placeRegex)) query = url.pathname.match(placeRegex)[1];
let prefsEncoded = new URLSearchParams(prefs).toString();
if (query) {
if (mapsFrontend == 'osm') return `${randomInstance}/search?query="${query}${mapCentre}&${prefsEncoded}`;
if (mapsFrontend == 'facil') return `${randomInstance}/${mapCentre}/Mpnk/${query}`;
}
}
let prefsEncoded = new URLSearchParams(prefs).toString();
console.log("mapCentre", mapCentre);
console.log("prefs", prefs);
console.log("prefsEncoded", prefsEncoded);
if (mapsFrontend == 'osm') return `${randomInstance}/${mapCentre}&${prefsEncoded}`;
if (mapsFrontend == 'facil') return `${randomInstance}/${mapCentre}/Mpnk`;
}
async function initDefaults() {
return new Promise(resolve =>
browser.storage.local.set({
disableMaps: false,
mapsFrontend: 'osm',
mapsRedirects: redirects,
facilNormalRedirectsChecks: [...redirects.facil.normal],
facilNormalCustomRedirects: [],
}, () => resolve())
)
}
export default {
redirect,
initDefaults,
};
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