dckcandClaude Opus 5.5
2820c015ee
A vat's globalOutbound is now always null. A granted host arrives as env.egress, an Egress the app can hand to whichever of its parts should have it; as globalOutbound it was ambient to every module in the vat. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
26 lines
1.0 KiB
JavaScript
26 lines
1.0 KiB
JavaScript
import { DurableObject } from "cloudflare:workers";
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/** `?url=<target>` fetches it through `env.egress`; with `&ws=1`, opens a WebSocket there and reports the echo of "hello". */
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export class App extends DurableObject {
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async fetch(request) {
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const params = new URL(request.url).searchParams;
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const target = params.get("url");
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const { egress } = this.env;
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if (!egress) return new Response("no egress granted\n");
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try {
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if (!params.has("ws")) return new Response(`got: ${await (await egress.fetch(target)).text()}\n`);
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const resp = await egress.fetch(target, { headers: { Upgrade: "websocket" } });
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const ws = resp.webSocket;
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if (!ws) return new Response(`no websocket: ${resp.status} ${await resp.text()}`);
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ws.accept();
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const reply = new Promise((resolve) => ws.addEventListener("message", (e) => resolve(e.data)));
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ws.send("hello");
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const got = await reply;
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ws.close();
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return new Response(`echo: ${got}\n`);
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} catch (e) {
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return new Response(`refused: ${e.message}\n`);
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}
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}
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}
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