fix(request): guess request protocol from incoming object

src/request.ts

@@ -4,6 +4,7 @@
 import type { IncomingMessage } from 'node:http'
 import { Http2ServerRequest } from 'node:http2'
 import { Readable } from 'node:stream'
+import type { TLSSocket } from 'node:tls'
 
 export const GlobalRequest = global.Request
 export class Request extends GlobalRequest {
@@ -117,7 +118,12 @@ export const newRequest = (incoming: IncomingMessage | Http2ServerRequest) => {
   const req = Object.create(requestPrototype)
   req[incomingKey] = incoming
   req[urlKey] = new URL(
-    `http://${incoming instanceof Http2ServerRequest ? incoming.authority : incoming.headers.host}${
+    `${
+      incoming instanceof Http2ServerRequest ||
+      (incoming.socket && (incoming.socket as TLSSocket).encrypted)
+        ? 'https'
+        : 'http'
+    }://${incoming instanceof Http2ServerRequest ? incoming.authority : incoming.headers.host}${
       incoming.url
     }`
   ).href

test/server.test.ts

@@ -14,6 +14,7 @@ import type { HttpBindings } from '../src/types'
 describe('Basic', () => {
   const app = new Hono()
   app.get('/', (c) => c.text('Hello! Node!'))
+  app.get('/url', (c) => c.text(c.req.url))
 
   app.get('/posts', (c) => {
     return c.text(`Page ${c.req.query('page')}`)
@@ -44,6 +45,16 @@ describe('Basic', () => {
     expect(res.text).toBe('Hello! Node!')
   })
 
+  it('Should return 200 response - GET /url', async () => {
+    const res = await request(server).get('/url').trustLocalhost()
+    expect(res.status).toBe(200)
+    expect(res.headers['content-type']).toMatch('text/plain')
+    const url = new URL(res.text)
+    expect(url.pathname).toBe('/url')
+    expect(url.hostname).toBe('127.0.0.1')
+    expect(url.protocol).toBe('http:')
+  })
+
   it('Should return 200 response - GET /posts?page=2', async () => {
     const res = await request(server).get('/posts?page=2')
     expect(res.status).toBe(200)
@@ -525,6 +536,7 @@ describe('Stream and non-stream response', () => {
 describe('SSL', () => {
   const app = new Hono()
   app.get('/', (c) => c.text('Hello! Node!'))
+  app.get('/url', (c) => c.text(c.req.url))
 
   const server = createAdaptorServer({
     fetch: app.fetch,
@@ -541,6 +553,16 @@ describe('SSL', () => {
     expect(res.headers['content-type']).toMatch('text/plain')
     expect(res.text).toBe('Hello! Node!')
   })
+
+  it('Should return 200 response - GET /url', async () => {
+    const res = await request(server).get('/url').trustLocalhost()
+    expect(res.status).toBe(200)
+    expect(res.headers['content-type']).toMatch('text/plain')
+    const url = new URL(res.text)
+    expect(url.pathname).toBe('/url')
+    expect(url.hostname).toBe('127.0.0.1')
+    expect(url.protocol).toBe('https:')
+  })
 })
 
 describe('HTTP2', () => {
@@ -580,7 +602,10 @@ describe('HTTP2', () => {
     const res = await request(server, { http2: true }).get('/url').trustLocalhost()
     expect(res.status).toBe(200)
     expect(res.headers['content-type']).toMatch('text/plain')
-    expect(new URL(res.text).hostname).toBe('127.0.0.1')
+    const url = new URL(res.text)
+    expect(url.pathname).toBe('/url')
+    expect(url.hostname).toBe('127.0.0.1')
+    expect(url.protocol).toBe('https:')
   })
 })