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Streamshop rebased #974

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+5 −37
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Streamshop rebased #974

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42 changes: 5 additions & 37 deletions website/loaders/asset.ts
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Original file line number Diff line number Diff line change
@@ -1,54 +1,22 @@
import { forbidden } from "@deco/deco";
import { fetchSafe, STALE } from "../../utils/fetch.ts";
import { shortcircuit } from "@deco/deco";
interface Props {
/**
* @description Asset src like: https://fonts.gstatic.com/...
*/
src: string;
}

const loader = async (props: Props, request: Request): Promise<Response> => {
const loader = async (props: Props) => {
const url = new URL(props.src);

// Whitelist allowed protocols
const allowedProtocols = ["https:", "http:"];
if (!allowedProtocols.includes(url.protocol)) {
forbidden({
message: "Only HTTP and HTTPS protocols are allowed",
});
if (url.protocol === "file:") {
shortcircuit(new Response("Forbidden", { status: 403 }));
}

const original = await fetchSafe(url.href, STALE);
const response = new Response(original.body, original);

// Check if the request's Accept header includes "text/html"
const acceptHeader = request.headers.get("accept");
if (acceptHeader && acceptHeader.includes("text/html")) {
forbidden({
message: "Forbidden: text/html not accepted",
});
}

const contentType = response.headers.get("Content-Type");
if (contentType && contentType.includes("text/html")) {
forbidden({
message: "Forbidden: text/html not accepted as a response",
});
}

// Set strict Content-Security-Policy
response.headers.set(
"Content-Security-Policy",
"default-src 'none'; style-src 'unsafe-inline'",
);

// Set cache control headers
response.headers.set(
"Cache-Control",
"cache-control",
"public, s-maxage=15552000, max-age=15552000, immutable",
);

return response;
};

export default loader;
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