next
Version:
The React Framework
72 lines (71 loc) • 2.35 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", {
value: true
});
Object.defineProperty(exports, "setRevalidateHeaders", {
enumerable: true,
get: function() {
return _revalidateHeaders.setRevalidateHeaders;
}
});
exports.sendRenderResult = sendRenderResult;
exports.sendEtagResponse = sendEtagResponse;
var _utils = require("../../shared/lib/utils");
var _etag = _interopRequireDefault(require("next/dist/compiled/etag"));
var _fresh = _interopRequireDefault(require("next/dist/compiled/fresh"));
var _revalidateHeaders = require("./revalidate-headers");
function _interopRequireDefault(obj) {
return obj && obj.__esModule ? obj : {
default: obj
};
}
async function sendRenderResult({ req , res , result , type , generateEtags , poweredByHeader , options }) {
if ((0, _utils).isResSent(res)) {
return;
}
if (poweredByHeader && type === 'html') {
res.setHeader('X-Powered-By', 'Next.js');
}
const payload = result.isDynamic() ? null : await result.toUnchunkedString();
if (payload) {
const etag = generateEtags ? (0, _etag).default(payload) : undefined;
if (sendEtagResponse(req, res, etag)) {
return;
}
}
if (!res.getHeader('Content-Type')) {
res.setHeader('Content-Type', type === 'json' ? 'application/json' : 'text/html; charset=utf-8');
}
if (payload) {
res.setHeader('Content-Length', Buffer.byteLength(payload));
}
if (options != null) {
(0, _revalidateHeaders).setRevalidateHeaders(res, options);
}
if (req.method === 'HEAD') {
res.end(null);
} else if (payload) {
res.end(payload);
} else {
await result.pipe(res);
}
}
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 ((0, _fresh).default(req.headers, {
etag
})) {
res.statusCode = 304;
res.end();
return true;
}
return false;
}
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