67 lines
2.1 KiB
TypeScript
67 lines
2.1 KiB
TypeScript
// proxy.ts (was middleware.ts)
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import { NextRequest, NextResponse } from "next/server";
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import { defaultLocale, isValidLocale } from "@/lib/dictionaries";
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// RENAMED: middleware → proxy (Next.js 16 convention)
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export function proxy(request: NextRequest) {
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const { pathname } = request.nextUrl;
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// Skip static files, API routes, Next.js internals
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if (
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pathname.startsWith("/_next") ||
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pathname.startsWith("/api") ||
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pathname.startsWith("/favicon") ||
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pathname.includes(".")
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) {
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return NextResponse.next();
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}
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// Check if path already has a valid locale prefix
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const pathLocale = pathname.split("/")[1];
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if (isValidLocale(pathLocale)) {
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// Serve directly — NEVER redirect locale-prefixed URLs.
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// Forward the URL locale as a request header so server components
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// without params access (e.g. not-found.tsx) can read it.
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const requestHeaders = new Headers(request.headers);
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requestHeaders.set("x-locale", pathLocale);
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requestHeaders.set("x-preferred-locale", detectPreferredLocale(request));
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return NextResponse.next({ request: { headers: requestHeaders } });
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}
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// No locale prefix — redirect to default (or cookie preference)
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const cookieLocale = request.cookies.get("NEXT_LOCALE")?.value;
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const targetLocale =
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cookieLocale && isValidLocale(cookieLocale) ? cookieLocale : defaultLocale;
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const url = request.nextUrl.clone();
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url.pathname = `/${targetLocale}${pathname}`;
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return NextResponse.redirect(url, 307);
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}
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function detectPreferredLocale(request: NextRequest): string {
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const acceptLang = request.headers.get("accept-language") || "";
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const segments = acceptLang
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.split(",")
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.map((part) => {
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const [lang, q] = part.trim().split(";q=");
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return {
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lang: lang.toLowerCase().trim(),
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quality: q ? parseFloat(q) : 1.0,
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};
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})
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.sort((a, b) => b.quality - a.quality);
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for (const { lang } of segments) {
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const base = lang.split("-")[0];
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if (["sr", "bs", "hr"].includes(base)) return "sr";
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if (base === "en") return "en";
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}
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return defaultLocale;
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}
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export const config = {
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matcher: ["/((?!_next|api|favicon\\.ico|.*\\..*).*)"],
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};
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