fix: conninfo returns server IP (#216)

* fix: conninfo returns server IP

* format code

Author: nakasyou

src/conninfo.ts

@@ -1,5 +1,4 @@
 import type { GetConnInfo } from 'hono/conninfo'
-import type { AddressInfo } from 'net'
 import type { HttpBindings } from './types'
 
 /**
@@ -10,20 +9,15 @@ import type { HttpBindings } from './types'
 export const getConnInfo: GetConnInfo = (c) => {
   const bindings = (c.env.server ? c.env.server : c.env) as HttpBindings
 
-  const address = bindings.incoming.socket.address() as AddressInfo
-
-  if (!('address' in address)) {
-    return {
-      remote: {},
-    }
-  }
+  const address = bindings.incoming.socket.remoteAddress
+  const port = bindings.incoming.socket.remotePort
+  const family = bindings.incoming.socket.remoteFamily
 
   return {
     remote: {
-      address: address.address,
-      addressType:
-        address.family === 'IPv4' ? 'IPv4' : address.family === 'IPv6' ? 'IPv6' : 'unknown',
-      port: address.port,
+      address,
+      port,
+      addressType: family === 'IPv4' ? 'IPv4' : family === 'IPv6' ? 'IPv6' : void 0,
     },
   }
 }

test/conninfo.test.ts

@@ -1,16 +1,15 @@
 import { Hono } from 'hono'
 import type { AddressType, ConnInfo } from 'hono/conninfo'
-import type { AddressInfo } from 'net'
 import { getConnInfo } from '../src/conninfo'
 
 describe('ConnInfo', () => {
   it('Should works', async () => {
     const app = new Hono().get('/', (c) => c.json(getConnInfo(c)))
 
-    const address: AddressInfo = {
-      address: '0.0.0.0',
-      family: 'IPv4',
-      port: 3030,
+    const socket = {
+      remoteAddress: '0.0.0.0',
+      remoteFamily: 'IPv4',
+      remotePort: 3030,
     }
     expect(
       await (
@@ -19,18 +18,16 @@ describe('ConnInfo', () => {
           {},
           {
             incoming: {
-              socket: {
-                address: () => address,
-              },
+              socket,
             },
           }
         )
       ).json()
     ).toEqual({
       remote: {
-        address: address.address,
-        addressType: address.family as AddressType,
-        port: address.port,
+        address: socket.remoteAddress,
+        addressType: socket.remoteFamily as AddressType,
+        port: socket.remotePort,
       },
     } satisfies ConnInfo)
   })