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GeoIp = {
cache: {},
pending: {},
get: function(ip, callback){
if (!GeoIp.storageInit && window.localStorage) {
GeoIp.storageInit = true;
var cache = localStorage.getItem("freegeoip");
if (cache) {
cache = JSON.parse(cache);
for (var key in cache) {
var data = cache[key];
if ( (new Date()).getTime() - data.reqTime > 96 * 3600000)
delete cache[key];
}
GeoIp.cache = cache;
}
jQuery(window).on("unload", function() {
localStorage.setItem("freegeoip", JSON.stringify(GeoIp.cache) );
} );
}
if (GeoIp.cache.hasOwnProperty(ip))
callback(GeoIp.cache[ip]);
else if (GeoIp.pending[ip])
GeoIp.pending[ip].push(callback);
else {
GeoIp.pending[ip] = [callback];
jQuery.ajax( {
url: "http://freegeoip.net/json/" + ip,
dataType: "jsonp",
cache: true,
timeout: 5000,
success: function(data) {
data.reqTime = (new Date()).getTime();
var res=[];
if (data.city) res.push(data.city);
if (data.region_name) res.push(data.region_name);
if (data.country_name) res.push(data.country_name);
data.fullName = res.join(", ");
GeoIp.cache[ip] = data;
var callbacks = GeoIp.pending[ip];
delete GeoIp.pending[ip];
for (var i=0; i<callbacks.length; i++)
callbacks[i].call(null, data);
},
error: function() {
var data = {ip:ip, reqTime: (new Date()).getTime()};
GeoIp.cache[ip] = data;
var callbacks = GeoIp.pending[ip];
delete GeoIp.pending[ip];
for (var i=0; i<callbacks.length; i++)
callbacks[i].call(null, data);
}
});
}
}
}
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