Mon 21 Jul 22:43:21 CEST 2025
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js/geoip/geoloc5.js
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285
js/geoip/geoloc5.js
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var Options = {
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// stage1
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locate : {
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primary : {http:'ag-0.de:9999',https:'ag-0.de:9998',path:'/json',timeout:1000},
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secondary : {http:'ip-api.com:80',https:'ip-api.com:80',path:'/json',timeout:2000},
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},
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// stage2
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locate5 : {
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// secondary : {https:'api.beacondb.net:443',path:'/v1/geolocate?key=test'},
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},
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// stage 3: lat,lon -> location info lookup
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reverse : {
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primary : {https:'api.opencagedata.com',path:'/geocode/v1/json?q=LAT+LON&key=f4280d4685bd4241b2f754957b86dac6'},
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secondary: {https:'nominatim.openstreetmap.org',path:'/reverse/?format=json&lat=LAT&lon=LON'},
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},
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verbose : 0
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}
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var http=Require("http"),https; /* https on demand */
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function ip(url) { return url.split(':')[0] }
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function port(url) { return url.split(':')[1] }
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// 1. GPS/GEO via IP and external database service
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function stage1 (cb,options,location) {
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var e,r;
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if (!http.xhr && http.request) {
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// node.js
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e={hostname:ip(options.http),
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path:options.path||'',method:"GET",
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port:port(options.http)};
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if (Options.verbose) console.log('locate.stage1',e);
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r=http.request(e,function(a){
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a.setEncoding("utf8");
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var c="";
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a.on("data",function(a){c+=a}),
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a.on("end",function(){
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try {
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var info=JSON.parse(c);
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if (Options.verbose) console.log('locate.stage1.res',info);
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Object.assign(location,{
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ip:info.query,
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gps:{lat:info.lat,lon:info.lon},
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geo:{city:info.city,country:info.country,countryCode:info.countryCode,region:info.region,zip:info.zip}
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})
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return cb(location);
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} catch (err) {
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return cb(err);
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}
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})
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});
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r.on("error",function(a) {
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if (Options.verbose) console.log('locate.stage1.err',a);
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return cb(a);
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})
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r.setTimeout(options.timeout,function() {
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if (Options.verbose) console.log('locate.stage1.err',"ETIMEOUT");
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return cb(new Error("ETIMEOUT"));
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})
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r.end();
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} else {
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// Browser
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var proto=document.URL.indexOf('https')==0?'https':'http';
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e={uri:proto+'://'+options[proto]+'/'+options.path,
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method:"GET",
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headers:{}};
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if (Options.verbose) console.log('stage1',e);
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http.request(e,function(err,xhr,body){
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if (err) {
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if (Options.verbose) console.log('locate.stage1.err',err);
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return cb(err);
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}
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try {
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var info=JSON.parse(body);
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if (Options.verbose) console.log('locate.stage1.res',info);
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Object.assign(location,{
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ip:info.query,
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gps:{lat:info.lat,lon:info.lon},
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geo:{city:info.city,country:info.country,countryCode:info.countryCode,region:info.region,zip:info.zip}
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})
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return cb(location);
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} catch (err) {
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if (Options.verbose) console.log('locate.stage1.err',err);
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return cb(err);
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}
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})
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}
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}
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// 2. GPS via IP and external database service
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function stage2 (cb,options,location) {
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if (!https || !https.request) return cb(new Error('ENETWORK'));
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if (!https.xhr && https.request) {
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var e = {
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hostname: ip(options.https),
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port: port(options.https),
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path: options.path,
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method: 'GET'
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}
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if (Options.verbose) console.log('locate.stage2',e);
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var req = https.request(e, function (res) {
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res.on('data', function (d){
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try {
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var pos = JSON.parse(d);
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if (Options.verbose) console.log('locate.stage3.res',pos);
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location.gps5 = { lat: pos.location.lat, lon:pos.location.lng }
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cb(location)
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} catch (e) { if (Options.verbose) console.log('locate.stage2.err',e); cb(e) };
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});
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})
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req.on('error', function (e) {
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cb(e);
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});
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req.end();
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} else {
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// Browser
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e={uri:'https://'+options.https+'/'+options.path,
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method:"GET",
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headers:{}};
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if (Options.verbose) console.log('locate.stage2',e);
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https.request(e,function(err,xhr,body){
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if (err) {
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if (Options.verbose) console.log('locate.stage2.err',err);
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return cb(err);
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}
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try {
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var pos = JSON.parse(body);
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if (Options.verbose) console.log('locate.stage2.res',pos);
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location.gps5 = { lat: pos.location.lat, lon:pos.location.lng }
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return cb(location);
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} catch (err) {
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if (Options.verbose) console.log('locate.stage2.err',err);
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return cb(err);
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}
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})
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}
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}
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// GPS -> GEO mapping by external database service, more precise information
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// Should use only gps5 (based on GPS), not gps (based in IP address)
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function stage3 (cb,options,location) {
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if (!https || !https.request) return cb(new Error('ENETWORK'));
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// location.gps is @IP location
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var gps = location.gps5 // || location.gps
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if (!gps) return cb(new Error("No GPS location"));
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options.path=options.path
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.replace(/LAT/,gps.lat)
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.replace(/LON/,gps.lon);
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if (!https.xhr && https.request) {
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var e = {
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hostname: ip(options.https),
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port: port(options.https),
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path: options.path,
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method: 'GET'
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}
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if (Options.verbose) console.log('locate.stage3',e);
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var req = https.request(e, function (res) {
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res.on('data', function (d){
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try {
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var res = JSON.parse(d);
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var loc;
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if (Options.verbose) console.log('locate.stage3.res',res);
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if (res.address) loc=res.address;
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else if (res.results && res.results[0]) loc=res.results[0].components;
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location.geo5 = {
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city:loc.city,
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zip:loc.postcode,
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street:loc.road,
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number:loc.house_number,
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country:loc.country
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}
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cb(location)
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} catch (e) { if (Options.verbose) console.log('locate.stage3.err',e); cb(e) };
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});
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})
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req.on('error', function (e) {
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if (Options.verbose) console.log('locate.stage3.err',e);
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cb(e);
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});
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req.end();
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} else {
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// Browser
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e={uri:'https://'+options.https+'/'+options.path,
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method:"GET",
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headers:{}};
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if (Options.verbose) console.log('locate.stage3',e);
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https.request(e,function(err,xhr,body){
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if (err) {
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if (Options.verbose) console.log('locate.stage3.err',err);
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return cb(err);
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}
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try {
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var res = JSON.parse(body);
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var loc;
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if (Options.verbose) console.log('locate.stage3.res',res);
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if (res.address) loc=res.address;
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else if (res.results && res.results[0]) loc=res.results[0].components;
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location.geo5 = {
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city:loc.city,
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zip:loc.postcode,
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street:loc.road,
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number:loc.house_number,
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country:loc.country
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}
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return cb(location);
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} catch (err) {
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if (Options.verbose) console.log('locate.stage3.err',err);
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return cb(err);
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}
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})
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}
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}
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var todo = {
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// 1. Direct ISP - IP - GPS/GEO lookup
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// 1a. with proxy
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stage1A: function (cb,errors,location) {
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stage1(function (res) {
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if (res instanceof Error) {
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errors.push({url:Options.locate.primary,error:res});
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todo.stage1B(cb,errors,location);
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} else {
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todo.stage2A(cb,errors,location);
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}
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},Options.locate.primary,location);
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},
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// 1b. w/o proxy
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stage1B: function (cb,errors,location) {
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stage1(function (res) {
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if (res instanceof Error) {
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errors.push({url:Options.locate.secondary,error:res});
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todo.stage2A(cb,errors,location);
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} else {
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todo.stage2A(cb,errors,location);
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}
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},Options.locate.secondary,location);
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},
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// 2. Get geo position (lat,lon)
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stage2A: function (cb,errors,location) {
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if (Options.locate5.secondary) stage2(function (res) {
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if (res instanceof Error) {
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errors.push({url:Options.locate5.secondary,error:res});
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todo.finalize(cb,errors,location);
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} else {
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todo.stage2B(cb,errors,location);
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}
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},Options.locate5.secondary,location);
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else
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todo.stage2B(cb,errors,location);
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},
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// 3. Get geo location (country,..)
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stage2B: function (cb,errors,location) {
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stage3(function (res) {
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if (res instanceof Error) {
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errors.push({url:Options.reverse.primary,x:1,error:res});
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todo.finalize(cb,errors,location);
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} else {
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todo.finalize(cb,errors,location);
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}
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},Options.reverse.primary,location);
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},
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finalize : function (cb,errors,location) {
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cb(location,errors);
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}
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}
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function locate (cb,options) {
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var e;
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if (options) Options=Object.assign(Options,options);
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if (typeof require == 'function' && !https) try {
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https = require('https');
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} catch (e) { /* TODO Browser */ } else if (http.xhr) https = http;
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if (!http) return cb(new Error('ENOTSUPPORTED'));
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todo.stage1A(cb,[],{});
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return;
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}
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module.exports={locate:locate,options:Options};
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