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worker.js
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worker.js
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"use strict";
// https://bugzilla.mozilla.org/show_bug.cgi?id=1247687
// importScripts("common.js");
import { BACKGROUND, NOTIFICATION, LOCATION, WORKER, dateTimeFormat4, numberFormat, IPv4RE, IPv6RE, outputunit, expand, IPv4toInt, IPv6toInt, outputseconds, delay } from "/common.js";
const label = "GeoIPv";
const settings = {
GeoDB: null
};
let GeoIPv4 = null;
let GeoIPv6 = null;
/**
* Create notification.
*
* @param {string} title
* @param {string} message
* @returns {void}
*/
function notification(title, message) {
const response = {
type: NOTIFICATION,
title,
message
};
// console.log(response);
postMessage(response);
}
/**
* Get the geolocation database.
*
* @param {string} url
* @param {4|6} v
* @param {string} [cache]
* @param {number} [retry]
* @returns {Promise<[Array<number|bigint|string|null>[], string|null, number|null]>}
*/
function agetGeoIP(url, v, cache, retry = 0) {
const alabel = `${label}${v}`;
console.log(url);
const fetchInfo = {
method: "GET"
};
if (cache) {
fetchInfo.cache = cache;
}
return fetch(url, fetchInfo).then(async (response) => {
if (response.ok) {
const text = await response.text();
// console.log(text);
console.timeLog(alabel);
let GEOIP = text.split("\n").filter((r) => r.length).map((r) => r.split("\t"));
// console.log(GEOIP);
console.timeLog(alabel);
switch (settings.GeoDB) {
case 1:
case 2:
case 9:
case 3:
case 4:
case 5:
GEOIP = Object.freeze(GEOIP.map(v === 4 ? ([start, end, country]) => [Number.parseInt(start, 16), Number.parseInt(end, 16), country] : ([start, end, country]) => [BigInt(`0x${start}`), BigInt(`0x${end}`), country]));
break;
case 6:
case 7:
GEOIP = Object.freeze(GEOIP.map(v === 4 ? ([start, end, country, state1, city, lat, lon]) => [Number.parseInt(start, 16), Number.parseInt(end, 16), country, state1, city, lat ? Number.parseFloat(lat) : null, lon ? Number.parseFloat(lon) : null] : ([start, end, country, state1, city, lat, lon]) => [BigInt(`0x${start}`), BigInt(`0x${end}`), country, state1, city, lat ? Number.parseFloat(lat) : null, lon ? Number.parseFloat(lon) : null]));
break;
case 8:
GEOIP = Object.freeze(GEOIP.map(v === 4 ? ([start, end, country, state2, state1, city, lat, lon]) => [Number.parseInt(start, 16), Number.parseInt(end, 16), country, state2, state1, city, lat ? Number.parseFloat(lat) : null, lon ? Number.parseFloat(lon) : null] : ([start, end, country, state2, state1, city, lat, lon]) => [BigInt(`0x${start}`), BigInt(`0x${end}`), country, state2, state1, city, lat ? Number.parseFloat(lat) : null, lon ? Number.parseFloat(lon) : null]));
break;
}
console.timeLog(alabel);
const modified = response.headers.get("Last-Modified");
let length = response.headers.get("Content-Length");
length &&= Number.parseInt(length, 10);
console.log(Array.from(response.headers.entries()), modified, text.length, length);
return [GEOIP, modified, length];
}
console.error(response);
console.timeEnd(alabel);
return Promise.reject();
}).catch(async (error) => {
if (retry >= 2) {
throw error;
}
console.error(error);
await delay((1 << retry) * 1000);
return agetGeoIP(url, v, cache, retry + 1);
});
}
/**
* Get the geolocation databases.
*
* @param {number} date
* @param {string[]} languages
* @param {string} [cache]
* @returns {Promise<void>}
*/
async function getGeoLoc(date, languages, cache) {
let dir = null;
let file4 = "ipv4.tsv";
let file6 = "ipv6.tsv";
switch (settings.GeoDB) {
case 1:
dir = "geo-whois-asn-country";
break;
case 2:
dir = "iptoasn-country";
break;
case 9:
dir = "ipinfo-country";
break;
case 3:
dir = "dbip-country";
break;
case 4:
dir = "ip2location-country";
break;
case 5:
dir = "geolite2-country";
break;
case 6:
dir = "dbip-city";
break;
case 7:
dir = "ip2location-city";
break;
case 8: {
// English, Simplified Chinese, Spanish, Brazilian Portuguese, Russian, Japanese, French, and German
const locales = ["de", "en", "es", "fr", "ja", "pt-BR", "ru", "zh-CN"];
// const languages = await browser.i18n.getAcceptLanguages();
const locale = languages.find((e) => locales.includes(e)) || locales[1];
console.log(languages, locale);
dir = "geolite2-city";
file4 = `ipv4-${locale}.tsv`;
file6 = `ipv6-${locale}.tsv`;
break;
}
}
const url = "https://gitlab.com/tdulcet/ip-geolocation-dbs/-/raw/main/";
const url4 = `${url}${dir}/${file4}?inline=false`;
const url6 = `${url}${dir}/${file6}?inline=false`;
if (!cache) {
notification("⬇️ Updating geolocation databases", "Checking for updated IP geolocation databases.\nYour browser may briefly slowdown after the download while it is processing the databases.");
}
const label4 = `${label}4`;
const label6 = `${label}6`;
console.time(label4);
console.time(label6);
const start = performance.now();
await agetGeoIP(url4, 4, cache).then((value) => Promise.all([value, agetGeoIP(url6, 6, cache)])).then(([[GeoIPv4, modified4, length4], [GeoIPv6, modified6, length6]]) => {
// https://bugzilla.mozilla.org/show_bug.cgi?id=1674342
// console.log(GeoIPv4, GeoIPv6, new Date(date));
console.log(GeoIPv4.length, GeoIPv6.length, new Date(date));
const message = {
type: BACKGROUND
};
// The full location databases are too large to store in local storage, which is limited to 255 MiB
message.GEOIP = [1, 2, 9, 3, 4, 5].includes(settings.GeoDB) ? { GeoIPv4, GeoIPv6, GeoDB: settings.GeoDB, date } : { GeoDB: settings.GeoDB, date };
postMessage(message);
parseGeoLoc(GeoIPv4, GeoIPv6);
const end = performance.now();
const time = outputseconds(Math.floor((end - start) / 1000));
if (!cache) {
notification("⬇️ Geolocation databases updated", `The IP geolocation databases were successfully updated in ${time}.\n\nIPv4 ${modified4 ? `updated: ${dateTimeFormat4.format(new Date(modified4))}, ` : ""}rows: ${numberFormat.format(GeoIPv4.length)}${length4 ? `, size: ${outputunit(length4, false)}B` : ""}\nIPv6 ${modified6 ? `updated: ${dateTimeFormat4.format(new Date(modified6))}, ` : ""}rows: ${numberFormat.format(GeoIPv6.length)}${length6 ? `, size: ${outputunit(length6, false)}B` : ""}`);
}
console.log(`The geolocation databases were updated in ${time}.`);
}).catch((error) => {
console.error(error);
notification(`❌ Unable to ${cache ? "load" : "update"} geolocation databases`, `Error: Unable to ${cache ? "load" : "update"} the IP geolocation databases: ${error}.`);
});
console.timeEnd(label4);
console.timeEnd(label6);
}
/**
* Parse the geolocation databases.
*
* @param {Array<[number, number, string]|[number, number, string, string, string, number|null, number|null]|[number, number, string, string, string, string, number|null, number|null]>} IPv4
* @param {Array<[bigint, bigint, string]|[bigint, bigint, string, string, string, number|null, number|null]|[bigint, bigint, string, string, string, string, number|null, number|null]>} IPv6
* @returns {void}
*/
function parseGeoLoc(IPv4, IPv6) {
/* switch (settings.GeoDB) {
case 1:
case 2:
case 9:
case 3:
case 4:
case 5:
GeoIPv4 = Object.freeze(IPv4.map(([start, end, country]) => Object.freeze({ start, end, country })));
GeoIPv6 = Object.freeze(IPv6.map(([start, end, country]) => Object.freeze({ start, end, country })));
break;
case 6:
case 7:
GeoIPv4 = Object.freeze(IPv4.map(([start, end, country, state1, city, lat, lon]) => Object.freeze({ start, end, country, state1, city, lat, lon })));
GeoIPv6 = Object.freeze(IPv6.map(([start, end, country, state1, city, lat, lon]) => Object.freeze({ start, end, country, state1, city, lat, lon })));
break;
case 8:
GeoIPv4 = Object.freeze(IPv4.map(([start, end, country, state2, state1, city, lat, lon]) => Object.freeze({ start, end, country, state2, state1, city, lat, lon })));
GeoIPv6 = Object.freeze(IPv6.map(([start, end, country, state2, state1, city, lat, lon]) => Object.freeze({ start, end, country, state2, state1, city, lat, lon })));
break;
} */
GeoIPv4 = Object.freeze(IPv4);
GeoIPv6 = Object.freeze(IPv6);
postMessage({ type: WORKER });
}
/**
* Search the geolocation database.
*
* @param {Array<[number|bigint, number|bigint, string]|[number|bigint, number|bigint, string, string, string, number|null, number|null]|[number|bigint, number|bigint, string, string, string, string, number|null, number|null]>} GeoIP
* @param {number|bigint} address
* @returns {{start: number|bigint, end: number|bigint, country: string, state2?: string, state1?: string, city?: string, lat?: number|null, lon?: number|null}|null}
*/
function searchGeoIP(GeoIP, address) {
let min = 0;
let max = GeoIP.length - 1;
while (min <= max) {
const guess = Math.floor((min + max) / 2);
const [start, end] = GeoIP[guess];
// console.log(min, max, guess, GeoIP[guess], address);
if (end < address) {
min = guess + 1;
} else if (start > address) {
max = guess - 1;
} else /* if (start <= address && end >= address) */ {
switch (settings.GeoDB) {
case 1:
case 2:
case 9:
case 3:
case 4:
case 5: {
const [start, end, country] = GeoIP[guess];
return Object.freeze({ start, end, country });
}
case 6:
case 7: {
const [start, end, country, state1, city, lat, lon] = GeoIP[guess];
return Object.freeze({ start, end, country, state1, city, lat, lon });
}
case 8: {
const [start, end, country, state2, state1, city, lat, lon] = GeoIP[guess];
return Object.freeze({ start, end, country, state2, state1, city, lat, lon });
}
}
}
}
return null;
}
/**
* Get the geolocation.
*
* @param {string} address
* @returns {{start: number|bigint, end: number|bigint, country: string, state2?: string, state1?: string, city?: string, lat?: number|null, lon?: number|null}|null}
*/
function getGeoIP(address) {
if (GeoIPv4 && GeoIPv6) {
if (IPv4RE.test(address)) {
return searchGeoIP(GeoIPv4, IPv4toInt(address));
}
if (IPv6RE.test(address)) {
address = expand(address.toLowerCase()).join("");
// IPv4-mapped, IPv4-compatible and IPv4-embedded IPv6 addresses
if (address.startsWith("00000000000000000000ffff") || address.startsWith("000000000000000000000000") || address.startsWith("0064ff9b")) {
return searchGeoIP(GeoIPv4, Number.parseInt(address.slice(-8), 16));
}
return searchGeoIP(GeoIPv6, IPv6toInt(address));
}
}
return null;
}
/**
* Set settings.
*
* @param {Object} message
* @returns {void}
*/
function setSettings(message) {
const asettings = message;
settings.GeoDB = asettings.GeoDB;
if (settings.GeoDB) {
const { GEOIP } = message;
if (GEOIP && GEOIP.GeoDB === settings.GeoDB) {
if (GEOIP.GeoIPv4 && GEOIP.GeoIPv6) {
parseGeoLoc(GEOIP.GeoIPv4, GEOIP.GeoIPv6);
} else {
/* await */ getGeoLoc(GEOIP.date, message.languages, "force-cache");
}
} else {
getGeoLoc(message.date, message.languages);
}
}
}
addEventListener("message", (event) => {
const message = event.data;
// console.log(message);
switch (message.type) {
case WORKER:
getGeoLoc(message.date, message.languages);
break;
case LOCATION: {
const response = {
type: LOCATION,
locations: message.addresses.map((x) => getGeoIP(x))
};
// console.log(response);
event.ports[0].postMessage(response);
break;
}
case BACKGROUND:
setSettings(message);
break;
// No default
}
});