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scuffed as fuck blob rewriting

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velzie 2024-07-30 08:19:14 -04:00
parent 9b9905f640
commit 12b17bc3b4
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GPG key ID: 048413F95F0DDE1F
2 changed files with 42 additions and 1 deletions
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21
src/client/shared/worker.ts
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@ -6,7 +6,18 @@ export default function (client: ScramjetClient, self: typeof globalThis) {
construct({ args }) {
if (args[0] instanceof URL) args[0] = args[0].href;
if (args[0].startsWith("blob:") || args[0].startsWith("data:")) {
// TODO
if (args[0].startsWith("blob:")) {
args[0] =
"data:application/javascript;base64," + btoa(syncfetch(args[0]));
}
args[0] = "/scramjet/worker?data=" + args[0];
if (args[1] && args[1].type === "module") {
args[0] += "&type=module";
}
args[0] += "&origin=" + encodeURIComponent(client.url.origin);
return;
}
@ -18,3 +29,11 @@ export default function (client: ScramjetClient, self: typeof globalThis) {
},
});
}
function syncfetch(url: string) {
const xhr = new XMLHttpRequest();
xhr.open("GET", url, false);
xhr.send();
return xhr.responseText;
}

22
src/worker/fetch.ts
View file

@ -13,6 +13,28 @@ export async function swfetch(
this: ScramjetServiceWorker,
{ request }: FetchEvent
) {
if (new URL(request.url).pathname.startsWith("/scramjet/worker")) {
const dataurl = new URL(request.url).searchParams.get("data");
const res = await fetch(dataurl);
const ab = await res.arrayBuffer();
const ismodule = new URL(request.url).searchParams.get("type") === "module";
const origin = new URL(
decodeURIComponent(new URL(request.url).searchParams.get("origin"))
);
if (ismodule) origin.searchParams.set("type", "module");
const rewritten = rewriteWorkers(ab, new URL(origin));
return new Response(rewritten, {
headers: {
"Content-Type": "application/javascript",
},
});
}
const urlParam = new URLSearchParams(new URL(request.url).search);
if (urlParam.has("url")) {