91 lines
2.4 KiB
TypeScript
91 lines
2.4 KiB
TypeScript
import { NextResponse } from "next/server";
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import { DEV_ORIGINS, SITE_URL } from "@/lib/site";
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const ALLOWED_ORIGIN = SITE_URL;
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function isDev(): boolean {
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return process.env.NODE_ENV !== "production";
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}
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export function isAllowedOrigin(request: Request): boolean {
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const origin = request.headers.get("origin");
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if (origin === null) {
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return true;
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}
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if (origin === ALLOWED_ORIGIN) {
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return true;
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}
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if (isDev() && DEV_ORIGINS.has(origin)) {
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return true;
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}
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return false;
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}
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function resolveAllowedOrigin(origin: string | null): string {
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if (origin !== null && (origin === ALLOWED_ORIGIN || (isDev() && DEV_ORIGINS.has(origin)))) {
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return origin;
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}
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return ALLOWED_ORIGIN;
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}
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export function corsHeaders(origin?: string | null): Record<string, string> {
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return {
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"Access-Control-Allow-Origin": resolveAllowedOrigin(origin ?? null),
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Vary: "Origin",
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};
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}
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export function forbidden(origin?: string | null): NextResponse {
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return NextResponse.json(
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{ error: "Forbidden" },
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{
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status: 403,
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headers: {
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"Cache-Control": "public, s-maxage=0, stale-while-revalidate=86400",
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...corsHeaders(origin),
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},
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},
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);
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}
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export async function parseAppId(context: {
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params: Promise<{ id: string }>;
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}): Promise<string | null> {
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const { id } = await context.params;
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if (!/^\d{1,20}$/.test(id)) {
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return null;
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}
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return id;
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}
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export function invalidIdResponse(origin?: string | null): NextResponse {
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return jsonErrorWithCors({ error: "Invalid application id" }, 400, 0, origin);
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}
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export function jsonErrorWithCors(
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data: unknown,
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status: number,
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sMaxage = 60,
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origin?: string | null,
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): NextResponse {
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return NextResponse.json(data, {
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status,
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headers: {
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"Cache-Control": `public, s-maxage=${sMaxage}, stale-while-revalidate=86400`,
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...corsHeaders(origin),
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},
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});
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}
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export function jsonWithCors(data: unknown, sMaxage = 3600, origin?: string | null): NextResponse {
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return NextResponse.json(data, {
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headers: {
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"Cache-Control": `public, s-maxage=${sMaxage}, stale-while-revalidate=86400`,
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...corsHeaders(origin),
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},
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});
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}
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export function requestOrigin(request: Request): string | null {
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return request.headers.get("origin");
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}
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