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import { file, serve } from "bun";
import { existsSync, statSync } from "fs";
serve({
fetch(req: Request) {
let pathname = new URL(req.url).pathname.substring(1);
if (pathname == "") {
pathname = import.meta.url.replace("file://", "");
}
if (!existsSync(pathname)) {
return new Response(null, { status: 404 });
}
const stats = statSync(pathname);
// https://github.com/gornostay25/svelte-adapter-bun/blob/master/src/sirv.js
const headers = new Headers({
"Content-Length": "" + stats.size,
"Last-Modified": stats.mtime.toUTCString(),
ETag: `W/"${stats.size}-${stats.mtime.getTime()}"`,
});
if (req.headers.get("if-none-match") === headers.get("ETag")) {
return new Response(null, { status: 304 });
}
const opts = { code: 200, start: 0, end: Infinity, range: false };
if (req.headers.has("range")) {
opts.code = 206;
let [x, y] = req.headers.get("range")!.replace("bytes=", "").split("-");
let end = (opts.end = parseInt(y, 10) || stats.size - 1);
let start = (opts.start = parseInt(x, 10) || 0);
if (start >= stats.size || end >= stats.size) {
headers.set("Content-Range", `bytes */${stats.size}`);
return new Response(null, {
headers: headers,
status: 416,
});
}
headers.set("Content-Range", `bytes ${start}-${end}/${stats.size}`);
headers.set("Content-Length", "" + (end - start + 1));
headers.set("Accept-Ranges", "bytes");
opts.range = true;
}
if (opts.range) {
return new Response(file(pathname).slice(opts.start, opts.end), {
headers,
status: opts.code,
});
}
return new Response(file(pathname), { headers, status: opts.code });
},
// this is called when fetch() throws or rejects
// error(err: Error) {
// return new Response("uh oh! :(" + String(err.toString()), { status: 500 });
// },
// this boolean enables the bun's default error handler
// sometime after the initial release, it will auto reload as well
development: process.env.NODE_ENV !== "production",
// note: this isn't node, but for compatibility bun supports process.env + more stuff in process
// SSL is enabled if these two are set
// certFile: './cert.pem',
// keyFile: './key.pem',
port: 3000, // number or string
hostname: "localhost", // defaults to 0.0.0.0
});
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