fix(auth): public url

.env

@@ -1,3 +1,3 @@
 # See update-dotenv.mjs
-PUBLIC_URL="https://www.google.com"
-NEXTAUTH_URL="https://www.google.com/api/web/auth"
+PUBLIC_URL="REPLACED-ON-NETLIFY-BUILD"
+NEXTAUTH_URL="REPLACE-ON-NETLIFY-BUILD"

middlewares/authRequired.ts

@@ -4,6 +4,7 @@ import { findLang } from "@/constants/languages"
 import { authRequired } from "@/constants/routes/authRequired"
 import { login } from "@/constants/routes/handleAuth"
 import { env } from "@/env/server"
+import { internalServerError } from "@/server/errors/next"
 
 import { auth } from "@/auth"
 
@@ -46,16 +47,22 @@ export const middleware = auth(async (request) => {
     return NextResponse.next()
   }
 
-  const publicUrl = nextUrl.clone()
-  publicUrl.host = env.PUBLIC_URL!
+  if (!env.PUBLIC_URL) {
+    throw internalServerError("Missing value for env.PUBLIC_URL")
+  }
+
+  const publicUrl = new URL(env.PUBLIC_URL)
+  const nextUrlClone = nextUrl.clone()
+  nextUrlClone.host = publicUrl.host
+  nextUrlClone.hostname = publicUrl.hostname
 
   const headers = new Headers()
   headers.append(
     "set-cookie",
-    `redirectTo=${encodeURIComponent(publicUrl.href)}; Path=/; HttpOnly; SameSite=Lax`
+    `redirectTo=${encodeURIComponent(nextUrlClone.href)}; Path=/; HttpOnly; SameSite=Lax`
   )
   const loginUrl = login[lang]
-  return NextResponse.redirect(new URL(loginUrl, publicUrl), {
+  return NextResponse.redirect(new URL(loginUrl, nextUrlClone), {
     headers,
   })
 }) as NextMiddleware // See comment above