| 1 |
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| 2 | const resolves = new Map;
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| 3 |
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| 4 | const swMessageError = (accessReq, $error$) => ({
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| 5 | $msgId$: accessReq.$msgId$,
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| 6 | $error$: $error$
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| 7 | });
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| 8 |
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| 9 | const httpRequestFromWebWorker = req => new Promise((async resolve => {
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| 10 | const accessReq = await req.clone().json();
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| 11 | const responseData = await (accessReq => new Promise((async resolve => {
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| 12 | const clients = await self.clients.matchAll();
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| 13 | const client = [ ...clients ].sort(((a, b) => a.url > b.url ? -1 : a.url < b.url ? 1 : 0))[0];
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| 14 | if (client) {
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| 15 | const timeout = 12e4;
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| 16 | const msgResolve = [ resolve, setTimeout((() => {
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| 17 | resolves.delete(accessReq.$msgId$);
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| 18 | resolve(swMessageError(accessReq, "Timeout"));
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| 19 | }), timeout) ];
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| 20 | resolves.set(accessReq.$msgId$, msgResolve);
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| 21 | client.postMessage(accessReq);
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| 22 | } else {
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| 23 | resolve(swMessageError(accessReq, "NoParty"));
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| 24 | }
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| 25 | })))(accessReq);
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| 26 | resolve(response(JSON.stringify(responseData), "application/json"));
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| 27 | }));
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| 28 |
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| 29 | const response = (body, contentType) => new Response(body, {
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| 30 | headers: {
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| 31 | "content-type": contentType || "text/html",
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| 32 | "Cache-Control": "no-store"
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| 33 | }
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| 34 | });
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| 35 |
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| 36 | self.oninstall = () => self.skipWaiting();
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| 37 |
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| 38 | self.onactivate = () => self.clients.claim();
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| 39 |
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| 40 | self.onmessage = ev => {
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| 41 | const accessRsp = ev.data;
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| 42 | const r = resolves.get(accessRsp.$msgId$);
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| 43 | if (r) {
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| 44 | resolves.delete(accessRsp.$msgId$);
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| 45 | clearTimeout(r[1]);
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| 46 | r[0](accessRsp);
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| 47 | }
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| 48 | };
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| 49 |
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| 50 | self.onfetch = ev => {
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| 51 | const req = ev.request;
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| 52 | const url = new URL(req.url);
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| 53 | const pathname = url.pathname;
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| 54 | if (pathname.endsWith("sw.html")) {
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| 55 | ev.respondWith(response('<!DOCTYPE html><html><head><meta charset="utf-8"><script src="./partytown-sandbox-sw.js"><\/script></head></html>'));
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| 56 | } else {
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| 57 | pathname.endsWith("proxytown") && ev.respondWith(httpRequestFromWebWorker(req));
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| 58 | }
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| 59 | };
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