add prefecture and city info

db/mysql/migrations/05_add_session_geo_columns/migration.sql

@@ -0,0 +1,3 @@
+-- AlterTable
+ALTER TABLE `session` ADD COLUMN `city` VARCHAR(100) NULL,
+    ADD COLUMN `prefecture` VARCHAR(2) NULL;

lib/request.js

@@ -2,7 +2,6 @@
 import path from 'path';
 import requestIp from 'request-ip';
 import { browserName, detectOS } from 'detect-browser';
-import isLocalhost from 'is-localhost-ip';
 import maxmind from 'maxmind';
 
 import {
@@ -56,17 +55,7 @@ export function getDevice(screen, browser, os) {
   }
 }
 
-export async function getCountry(req, ip) {
-  // Cloudflare
-  if (req.headers['cf-ipcountry']) {
-    return req.headers['cf-ipcountry'];
-  }
-
-  // Ignore local ips
-  if (await isLocalhost(ip)) {
-    return;
-  }
-
+export async function getGeoInfo(ip) {
   // Database lookup
   if (!lookup) {
     lookup = await maxmind.open(path.resolve('node_modules/.geo/GeoLite2-City.mmdb'));
@@ -74,20 +63,32 @@ export async function getCountry(req, ip) {
 
   const result = lookup.get(ip);
 
-  console.log(JSON.stringify(result));
+  if (!result) {
+    return undefined;
+  }
 
-  return result?.country?.iso_code;
+  console.log(result.subdivisions);
+
+  const city = result.city?.names.en;
+  const country = result.country?.iso_code;
+  const prefecture = result.subdivisions[0]?.iso_code;
+
+  return {
+    city,
+    country,
+    prefecture,
+  };
 }
 
 export async function getClientInfo(req, { screen }) {
   const userAgent = req.headers['user-agent'];
   const ip = getIpAddress(req);
-  const country = await getCountry(req, ip);
+  const { country, prefecture, city } = await getGeoInfo(ip);
   const browser = browserName(userAgent);
   const os = detectOS(userAgent);
   const device = getDevice(screen, browser, os);
 
-  return { userAgent, browser, os, ip, country, device };
+  return { userAgent, browser, os, ip, country, prefecture, city, device };
 }
 
 export function getJsonBody(req) {

lib/session.js

@@ -47,7 +47,10 @@ export async function getSession(req) {
   }
 
   // const ip = req.headers['x-forwarded-for'] || req.connection.remoteAddress;
-  const { userAgent, browser, os, ip, country, device } = await getClientInfo(req, payload);
+  const { userAgent, browser, os, ip, country, prefecture, city, device } = await getClientInfo(
+    req,
+    payload,
+  );
 
   let session_uuid = uuid(websiteId, hostname, ip, userAgent);
   if (process.env.CROSSDOMAIN_TRACKING) {
@@ -80,6 +83,8 @@ export async function getSession(req) {
         screen,
         language,
         country,
+        prefecture,
+        city,
         device,
         ip,
         user_agent: userAgent,