88 lines
2.5 KiB
JavaScript
88 lines
2.5 KiB
JavaScript
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/*
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* @project: TERA
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* @version: Development (beta)
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* @license: MIT (not for evil)
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* @copyright: Yuriy Ivanov 2017-2019 [progr76@gmail.com]
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* Web: https://terafoundation.org
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* Twitter: https://twitter.com/terafoundation
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* Telegram: https://web.telegram.org/#/im?p=@terafoundation
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*/
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var BufIP, fs = require("fs");
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require("./library.js");
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var MapNames = {}, FileIp = "./SITE/DB/iplocation.db", FileNames = "./SITE/DB/locationnames.csv", Format = "{Value:uint32,Length:uint32, id:uint32, latitude:uint32, longitude:uint32}",
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FormatStruct = {};
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function SetGeoLocation(e)
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{
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if(!e.ip || !BufIP || !BufIP.length)
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return !1;
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var t = IPToUint(e.ip), i = FindItem(BufIP, 20, t);
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return i && (e.latitude = i.latitude, e.longitude = i.longitude, e.name = MapNames[i.id]), e.Geo = 1, !0;
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};
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function ReadItem(e,t)
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{
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return BufIP.len = e * t, BufLib.Read(BufIP, Format, void 0, FormatStruct);
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};
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function FindItem(e,t,i)
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{
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var n, r = Math.trunc(e.length / t), a = (ReadItem(0, t), ReadItem(r, t), 0), u = r, o = Math.trunc(i * r / 4294967296);
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r <= o && (o = r - 1), o < a && (o = a);
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for(var f = 40; 0 < f; )
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{
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if(f--, !(n = ReadItem(o, t)))
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return void ToLog("GEO FindItem - Error read num: " + o);
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if(n.Value > i)
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{
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if(u = o - 1, 0 === (l = o - a))
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return ;
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o -= l = Math.trunc((1 + l) / 2);
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}
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else
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if(n.Value < i)
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{
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if(n.Value + n.Length >= i)
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return n;
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var l;
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if(a = o + 1, 0 === (l = u - o))
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return ;
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o += l = Math.trunc((1 + l) / 2);
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}
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else
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if(n.Value === i)
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return n;
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}
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};
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function Init()
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{
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if(fs.existsSync(FileIp) && fs.existsSync(FileNames))
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{
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BufIP = fs.readFileSync(FileIp);
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for(var e = fs.readFileSync(FileNames), t = 0; ; )
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{
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var i = e.indexOf("\n", t);
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if(i < 0)
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break;
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var n = e.toString("utf-8", t, i - 1);
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t = i + 1;
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var r = n.split(","), a = parseInt(r[0]);
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if(a)
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{
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0;
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var u = r[10];
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u || (u = r[7]), u || (u = r[5]), MapNames[a] = u;
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}
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}
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}
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};
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function IPToUint(e)
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{
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var t = e.split(".");
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return 256 * (256 * (256 * + t[0] + + t[1]) + + t[2]) + + t[3];
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};
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global.SetGeoLocation = SetGeoLocation, Init();
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