vielle.dev
+36
-2
src/index.ts
+36
-2
src/index.ts
···
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const SUBDOMAIN_REGEX = new RegExp(`.+(?=\\.${ROOT_DOMAIN}$)`, "gm");
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function clearCookies(req: Request): Headers {
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const cookie_header = req.headers.get("Cookie");
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// cookies are unset so return empty headers
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if (!cookie_header) return new Headers();
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// get each kv pair and extract the key
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const cookies = cookie_header.split("; ").map((x) => x.split("=")[0]);
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const head = new Headers();
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for (const key of cookies) {
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// max-age <= 0 means instant expiry .: deleted instantly
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head.append("Set-Cookie", `${key}=; Max-Age=-1`);
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}
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return head;
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}
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Deno.serve({ port: PORT, hostname: ROOT_DOMAIN }, async (req) => {
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const reqUrl = new URL(req.url);
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const subdomain = reqUrl.hostname.match(SUBDOMAIN_REGEX)?.at(0)?.split(".");
···
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// did:web example: `vielle.dev.did-web.ROOT_DOMAIN
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// last segment must be did-plc or did-web
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if (subdomain.at(-1)?.match(/^did-(web|plc)+$/gm)) {
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return user(req, {
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const res = await user(req, {
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did: `did:${subdomain.at(-1) === "did-plc" ? "plc" : "web"}:${subdomain.slice(0, -1).join(".")}`,
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});
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return new Response(res.body, {
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...res,
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headers: {
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...Array.from(res.headers.entries()).reduce(
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(acc, [k, v]) => ({ ...acc, [k]: v }),
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{}
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),
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...clearCookies(req),
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},
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});
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}
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// ex: vielle.dev.ROOT_DOMAIN
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// cannot contain hyphen in top level domain
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if (!subdomain.at(-1)?.startsWith("did-") && subdomain.length > 1) {
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return await user(req, {
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const res = await user(req, {
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handle: subdomain.join(".") as `${string}.${string}`,
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});
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return new Response(res.body, {
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...res,
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headers: {
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...Array.from(res.headers.entries()).reduce(
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(acc, [k, v]) => ({ ...acc, [k]: v }),
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{}
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),
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...clearCookies(req),
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},
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});
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}
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