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import { NextRequest, NextResponse } from "next/server";
import { cookies } from "next/headers";
import crypto from "crypto";
import { env } from "@/env";
const CSRF_TOKEN_NAME = "waitlist-csrf";
const TOKEN_EXPIRY = 60 * 60 * 1000;
const allowedHosts =
env.NODE_ENV === "development"
? ["localhost:3000", "127.0.0.1:3000"]
: ["opencut.app", "www.opencut.app"];
export async function GET(request: NextRequest) {
const referer = request.headers.get("referer");
const host = request.headers.get("host");
if (referer) {
const refererUrl = new URL(referer);
if (
!allowedHosts.some(
(allowed) =>
refererUrl.host === allowed || refererUrl.host.endsWith(allowed),
)
) {
return NextResponse.json({ error: "Forbidden" }, { status: 403 });
}
} else if (host) {
if (
!allowedHosts.some(
(allowed) => host === allowed || host.endsWith(allowed),
)
) {
return NextResponse.json({ error: "Forbidden" }, { status: 403 });
}
} else {
return NextResponse.json({ error: "Forbidden" }, { status: 403 });
}
if (!env.BETTER_AUTH_SECRET) {
throw new Error("BETTER_AUTH_SECRET must be configured");
}
const token = crypto.randomBytes(32).toString("hex");
const timestamp = Date.now();
const signature = crypto
.createHmac("sha256", env.BETTER_AUTH_SECRET)
.update(`${token}:${timestamp}`)
.digest("hex");
const cookieStore = await cookies();
cookieStore.set(CSRF_TOKEN_NAME, `${token}:${timestamp}:${signature}`, {
httpOnly: true,
secure: env.NODE_ENV === "production",
sameSite: "strict",
maxAge: TOKEN_EXPIRY / 1000,
path: "/",
});
return NextResponse.json({ token });
}
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