tianji/scripts/build-geo.ts

56 lines
1.4 KiB
TypeScript

import 'dotenv/config';
import fs from 'fs';
import path from 'path';
import https from 'https';
import zlib from 'zlib';
import tar from 'tar';
if (process.env.VERCEL) {
console.log('Vercel environment detected. Skipping geo setup.');
process.exit(0);
}
const db = 'GeoLite2-City';
let url = `https://raw.githubusercontent.com/GitSquared/node-geolite2-redist/master/redist/${db}.tar.gz`;
if (process.env.MAXMIND_LICENSE_KEY) {
url =
`https://download.maxmind.com/app/geoip_download` +
`?edition_id=${db}&license_key=${process.env.MAXMIND_LICENSE_KEY}&suffix=tar.gz`;
}
const dest = path.resolve(process.cwd(), './geo');
if (!fs.existsSync(dest)) {
fs.mkdirSync(dest);
}
const download = (url: string): Promise<NodeJS.WritableStream> =>
new Promise((resolve) => {
https.get(url, (res) => {
resolve(res.pipe(zlib.createGunzip({})).pipe(tar.t()));
});
});
download(url).then(
(res) =>
new Promise<void>((resolve, reject) => {
res.on('entry', (entry) => {
if (entry.path.endsWith('.mmdb')) {
const filename = path.join(dest, path.basename(entry.path));
entry.pipe(fs.createWriteStream(filename));
console.log('Saved geo database:', filename);
}
});
res.on('error', (e) => {
reject(e);
});
res.on('finish', () => {
resolve();
});
})
);