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import type { SSRManifest } from 'astro';
import { applyPolyfills, NodeApp } from 'astro/app/node';
import type { IncomingMessage, ServerResponse } from 'node:http';
import {
ASTRO_PATH_HEADER,
ASTRO_PATH_PARAM,
ASTRO_LOCALS_HEADER,
ASTRO_MIDDLEWARE_SECRET_HEADER,
} from './adapter.js';
applyPolyfills();
export const createExports = (
manifest: SSRManifest,
{ middlewareSecret }: { middlewareSecret: string }
) => {
const app = new NodeApp(manifest);
const handler = async (req: IncomingMessage, res: ServerResponse) => {
const url = new URL(`https://example.com${req.url}`);
const clientAddress = req.headers['x-forwarded-for'] as string | undefined;
const localsHeader = req.headers[ASTRO_LOCALS_HEADER];
const middlewareSecretHeader = req.headers[ASTRO_MIDDLEWARE_SECRET_HEADER];
const realPath = req.headers[ASTRO_PATH_HEADER] ?? url.searchParams.get(ASTRO_PATH_PARAM);
if (typeof realPath === 'string') {
req.url = realPath;
}
let locals = {};
if (localsHeader) {
if (middlewareSecretHeader !== middlewareSecret) {
res.statusCode = 403;
res.end('Forbidden');
return;
}
locals =
typeof localsHeader === 'string' ? JSON.parse(localsHeader) : JSON.parse(localsHeader[0]);
}
// hide the secret from the rest of user code
delete req.headers[ASTRO_MIDDLEWARE_SECRET_HEADER];
const webResponse = await app.render(req, { addCookieHeader: true, clientAddress, locals });
await NodeApp.writeResponse(webResponse, res);
};
return { default: handler };
};
// HACK: prevent warning
// @astrojs-ssr-virtual-entry (22:23) "start" is not exported by "dist/serverless/entrypoint.js", imported by "@astrojs-ssr-virtual-entry".
export function start() {}
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