LittleChest/Dohna-NS
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handler: Custom upstream servers

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LittleChest 2025-04-26 14:02:14 +08:00
parent e2482fe548
commit 86fa917b6a
5 changed files with 18 additions and 9 deletions
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7
README.md
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@ -17,6 +17,13 @@ Read [Dohna NS Documentation](https://dohna-ns.sbs/) to learn how to install Doh
| Vercel | [![Deploy to Vercel](https://vercel.com/button)](https://vercel.com/new/clone?repository-url=https://github.com/LittleChest/Dohna-NS) | | Vercel | [![Deploy to Vercel](https://vercel.com/button)](https://vercel.com/new/clone?repository-url=https://github.com/LittleChest/Dohna-NS) |
| Netlify | [![Deploy to Netlify](https://www.netlify.com/img/deploy/button.svg)](https://app.netlify.com/start/deploy?repository=https://github.com/LittleChest/Dohna-NS) | | Netlify | [![Deploy to Netlify](https://www.netlify.com/img/deploy/button.svg)](https://app.netlify.com/start/deploy?repository=https://github.com/LittleChest/Dohna-NS) |
## Environment Variables
| Key | Default | Description |
| --- | ---------------------------- | ------------------------------------------------ |
| DNS | https://dns.google/dns-query | Specify a DNS over HTTPS server as the upstream. |
| API | https://dns.google/resolve | Specify a JSON API server as the upstream. |
## Self-hosted ## Self-hosted
You can use [Netlify CLI](https://cli.netlify.com/commands/serve/) or [`workerd`](https://github.com/cloudflare/workerd/blob/main/README.md#getting-started) **(Recommended)** to serve locally. You can use [Netlify CLI](https://cli.netlify.com/commands/serve/) or [`workerd`](https://github.com/cloudflare/workerd/blob/main/README.md#getting-started) **(Recommended)** to serve locally.

2
_worker.js
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@ -1,5 +1,5 @@
import handler from "./common"; import handler from "./common";
export default { export default {
fetch: async (request) => handler(request), fetch: async (request, env) => handler(request, env.DNS, env.API),
}; };

13
common.js
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@ -1,7 +1,8 @@
const dns = "https://dns.google/dns-query"; export default async function handler(
const api = "https://dns.google/resolve"; request,
dns = "https://dns.google/dns-query",
export default async function handler(request) { api = "https://dns.google/resolve"
) {
const { method, headers, url } = request; const { method, headers, url } = request;
const { search, searchParams, pathname } = new URL(url); const { search, searchParams, pathname } = new URL(url);
const ip = headers.get("x-forwarded-for"); const ip = headers.get("x-forwarded-for");
@ -57,14 +58,14 @@ export default async function handler(request) {
} }
if (queryData !== undefined) { if (queryData !== undefined) {
res = await queryDns(queryData, ip); res = await queryDns(queryData, ip, dns);
} }
} }
return res; return res;
} }
async function queryDns(queryData, ip) { async function queryDns(queryData, ip, dns) {
const hasOptRecord = checkForOptRecord(queryData); const hasOptRecord = checkForOptRecord(queryData);
let newQueryData = queryData; let newQueryData = queryData;
if (!hasOptRecord && ip) { if (!hasOptRecord && ip) {

2
middleware.js
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@ -1,5 +1,5 @@
import handler from "./common"; import handler from "./common";
export default middleware = async (request) => { export default middleware = async (request) => {
return handler(request); return handler(request, process.env.DNS, process.env.API);
}; };

3
netlify/edge-functions/middleware.js
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@ -1,3 +1,4 @@
import handler from "../../common.js"; import handler from "../../common.js";
export default (request) => handler(request); export default (request) =>
handler(request, Netlify.env.get("DNS"), Netlify.env.get("API"));
export const config = { path: "*" }; export const config = { path: "*" };