Initial commit

Created from https://vercel.com/new

scripts/build-geo.js

@@ -0,0 +1,49 @@
+require('dotenv').config();
+const fs = require('fs');
+const path = require('path');
+const https = require('https');
+const zlib = require('zlib');
+const tar = require('tar');
+
+let url =
+  'https://raw.githubusercontent.com/GitSquared/node-geolite2-redist/master/redist/GeoLite2-Country.tar.gz';
+
+if (process.env.MAXMIND_LICENSE_KEY) {
+  url =
+    `https://download.maxmind.com/app/geoip_download` +
+    `?edition_id=GeoLite2-Country&license_key=${process.env.MAXMIND_LICENSE_KEY}&suffix=tar.gz`;
+}
+
+const dest = path.resolve(__dirname, '../public/geo');
+
+if (!fs.existsSync(dest)) {
+  fs.mkdirSync(dest);
+}
+
+const download = url =>
+  new Promise(resolve => {
+    https.get(url, res => {
+      resolve(res.pipe(zlib.createGunzip({})).pipe(tar.t()));
+    });
+  });
+
+download(url).then(
+  res =>
+    new Promise((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();
+      });
+    }),
+);