61 lines
2.2 KiB
JavaScript
61 lines
2.2 KiB
JavaScript
import { isResSent } from '../shared/lib/utils';
|
|
import { generateETag } from './lib/etag';
|
|
import fresh from 'next/dist/compiled/fresh';
|
|
import { getCacheControlHeader } from './lib/cache-control';
|
|
import { RSC_CONTENT_TYPE_HEADER } from '../client/components/app-router-headers';
|
|
export function sendEtagResponse(req, res, etag) {
|
|
if (etag) {
|
|
/**
|
|
* The server generating a 304 response MUST generate any of the
|
|
* following header fields that would have been sent in a 200 (OK)
|
|
* response to the same request: Cache-Control, Content-Location, Date,
|
|
* ETag, Expires, and Vary. https://tools.ietf.org/html/rfc7232#section-4.1
|
|
*/ res.setHeader('ETag', etag);
|
|
}
|
|
if (fresh(req.headers, {
|
|
etag
|
|
})) {
|
|
res.statusCode = 304;
|
|
res.end();
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
export async function sendRenderResult({ req, res, result, type, generateEtags, poweredByHeader, cacheControl }) {
|
|
if (isResSent(res)) {
|
|
return;
|
|
}
|
|
if (poweredByHeader && type === 'html') {
|
|
res.setHeader('X-Powered-By', 'Next.js');
|
|
}
|
|
// If cache control is already set on the response we don't
|
|
// override it to allow users to customize it via next.config
|
|
if (cacheControl && !res.getHeader('Cache-Control')) {
|
|
res.setHeader('Cache-Control', getCacheControlHeader(cacheControl));
|
|
}
|
|
const payload = result.isDynamic ? null : result.toUnchunkedString();
|
|
if (generateEtags && payload !== null) {
|
|
const etag = generateETag(payload);
|
|
if (sendEtagResponse(req, res, etag)) {
|
|
return;
|
|
}
|
|
}
|
|
if (!res.getHeader('Content-Type')) {
|
|
res.setHeader('Content-Type', result.contentType ? result.contentType : type === 'rsc' ? RSC_CONTENT_TYPE_HEADER : type === 'json' ? 'application/json' : 'text/html; charset=utf-8');
|
|
}
|
|
if (payload) {
|
|
res.setHeader('Content-Length', Buffer.byteLength(payload));
|
|
}
|
|
if (req.method === 'HEAD') {
|
|
res.end(null);
|
|
return;
|
|
}
|
|
if (payload !== null) {
|
|
res.end(payload);
|
|
return;
|
|
}
|
|
// Pipe the render result to the response after we get a writer for it.
|
|
await result.pipeToNodeResponse(res);
|
|
}
|
|
|
|
//# sourceMappingURL=send-payload.js.map
|