next
Version:
The React Framework
253 lines (252 loc) • 10.8 kB
JavaScript
import { byteLength } from './api-utils/web';
import BaseServer, { NoFallbackError } from './base-server';
import { generateETag } from './lib/etag';
import { addRequestMeta, getRequestMeta } from './request-meta';
import WebResponseCache from './response-cache/web';
import { removeTrailingSlash } from '../shared/lib/router/utils/remove-trailing-slash';
import { isDynamicRoute } from '../shared/lib/router/utils';
import { interpolateDynamicPath, normalizeVercelUrl, normalizeDynamicRouteParams } from './server-utils';
import { getNamedRouteRegex } from '../shared/lib/router/utils/route-regex';
import { getRouteMatcher } from '../shared/lib/router/utils/route-matcher';
import { IncrementalCache } from './lib/incremental-cache';
import { buildCustomRoute } from '../lib/build-custom-route';
import { UNDERSCORE_NOT_FOUND_ROUTE } from '../api/constants';
import { getEdgeInstrumentationModule } from './web/globals';
import { getEdgePreviewProps } from './web/get-edge-preview-props';
export default class NextWebServer extends BaseServer {
constructor(options){
super(options), this.handleCatchallRenderRequest = async (req, res, parsedUrl)=>{
let { pathname, query } = parsedUrl;
if (!pathname) {
throw Object.defineProperty(new Error('pathname is undefined'), "__NEXT_ERROR_CODE", {
value: "E408",
enumerable: false,
configurable: true
});
}
// interpolate query information into page for dynamic route
// so that rewritten paths are handled properly
const normalizedPage = this.serverOptions.webServerConfig.pathname;
if (pathname !== normalizedPage) {
pathname = normalizedPage;
if (isDynamicRoute(pathname)) {
const routeRegex = getNamedRouteRegex(pathname, {
prefixRouteKeys: false
});
const dynamicRouteMatcher = getRouteMatcher(routeRegex);
const defaultRouteMatches = dynamicRouteMatcher(pathname);
const paramsResult = normalizeDynamicRouteParams(query, routeRegex, defaultRouteMatches, false);
const normalizedParams = paramsResult.hasValidParams ? paramsResult.params : query;
pathname = interpolateDynamicPath(pathname, normalizedParams, routeRegex);
normalizeVercelUrl(req, Object.keys(routeRegex.routeKeys), routeRegex);
}
}
// next.js core assumes page path without trailing slash
pathname = removeTrailingSlash(pathname);
if (this.i18nProvider) {
const { detectedLocale } = await this.i18nProvider.analyze(pathname);
if (detectedLocale) {
addRequestMeta(req, 'locale', detectedLocale);
}
}
const bubbleNoFallback = getRequestMeta(req, 'bubbleNoFallback');
try {
await this.render(req, res, pathname, query, parsedUrl, true);
return true;
} catch (err) {
if (err instanceof NoFallbackError && bubbleNoFallback) {
return false;
}
throw err;
}
};
// Extend `renderOpts`.
Object.assign(this.renderOpts, options.webServerConfig.extendRenderOpts);
}
async getIncrementalCache({ requestHeaders }) {
const dev = !!this.renderOpts.dev;
// incremental-cache is request specific
// although can have shared caches in module scope
// per-cache handler
return new IncrementalCache({
dev,
requestHeaders,
requestProtocol: 'https',
allowedRevalidateHeaderKeys: this.nextConfig.experimental.allowedRevalidateHeaderKeys,
minimalMode: this.minimalMode,
fetchCacheKeyPrefix: this.nextConfig.experimental.fetchCacheKeyPrefix,
maxMemoryCacheSize: this.nextConfig.cacheMaxMemorySize,
flushToDisk: false,
CurCacheHandler: this.serverOptions.webServerConfig.incrementalCacheHandler,
getPrerenderManifest: ()=>this.getPrerenderManifest()
});
}
getResponseCache() {
return new WebResponseCache(this.minimalMode);
}
async hasPage(page) {
return page === this.serverOptions.webServerConfig.page;
}
getBuildId() {
return this.serverOptions.buildId;
}
getEnabledDirectories() {
return {
app: this.serverOptions.webServerConfig.pagesType === 'app',
pages: this.serverOptions.webServerConfig.pagesType === 'pages'
};
}
getPagesManifest() {
return {
// keep same theme but server path doesn't need to be accurate
[this.serverOptions.webServerConfig.pathname]: `server${this.serverOptions.webServerConfig.page}.js`
};
}
getAppPathsManifest() {
const page = this.serverOptions.webServerConfig.page;
return {
[this.serverOptions.webServerConfig.page]: `app${page}.js`
};
}
attachRequestMeta(req, parsedUrl) {
addRequestMeta(req, 'initQuery', {
...parsedUrl.query
});
}
getPrerenderManifest() {
return {
version: -1,
routes: {},
dynamicRoutes: {},
notFoundRoutes: [],
preview: getEdgePreviewProps()
};
}
getNextFontManifest() {
return this.serverOptions.webServerConfig.extendRenderOpts.nextFontManifest;
}
renderHTML(req, res, pathname, query, renderOpts) {
const { renderToHTML } = this.serverOptions.webServerConfig;
if (!renderToHTML) {
throw Object.defineProperty(new Error('Invariant: routeModule should be configured when rendering pages'), "__NEXT_ERROR_CODE", {
value: "E4",
enumerable: false,
configurable: true
});
}
// For edge runtime if the pathname hit as /_not-found entrypoint,
// override the pathname to /404 for rendering
if (pathname === UNDERSCORE_NOT_FOUND_ROUTE) {
pathname = '/404';
}
return renderToHTML(req, res, pathname, query, // Edge runtime does not support ISR/PPR, so we don't need to pass in
// the unknown params.
null, Object.assign(renderOpts, {
disableOptimizedLoading: true,
runtime: 'experimental-edge'
}), undefined, false, {
buildId: this.serverOptions.buildId
});
}
async sendRenderResult(_req, res, options) {
res.setHeader('X-Edge-Runtime', '1');
// Add necessary headers.
// @TODO: Share the isomorphic logic with server/send-payload.ts.
if (options.poweredByHeader && options.type === 'html') {
res.setHeader('X-Powered-By', 'Next.js');
}
if (!res.getHeader('Content-Type')) {
res.setHeader('Content-Type', options.result.contentType ? options.result.contentType : options.type === 'json' ? 'application/json' : 'text/html; charset=utf-8');
}
let promise;
if (options.result.isDynamic) {
promise = options.result.pipeTo(res.transformStream.writable);
} else {
const payload = options.result.toUnchunkedString();
res.setHeader('Content-Length', String(byteLength(payload)));
if (options.generateEtags) {
res.setHeader('ETag', generateETag(payload));
}
res.body(payload);
}
res.send();
// If we have a promise, wait for it to resolve.
if (promise) await promise;
}
async findPageComponents({ page, query, params, url: _url }) {
const result = await this.serverOptions.webServerConfig.loadComponent(page);
if (!result) return null;
return {
query: {
...query || {},
...params || {}
},
components: result
};
}
// Below are methods that are not implemented by the web server as they are
// handled by the upstream proxy (edge runtime or node server).
async runApi() {
// This web server does not need to handle API requests.
return true;
}
async handleApiRequest() {
// Edge API requests are handled separately in minimal mode.
return false;
}
loadEnvConfig() {
// The web server does not need to load the env config. This is done by the
// runtime already.
}
getPublicDir() {
// Public files are not handled by the web server.
return '';
}
getHasStaticDir() {
return false;
}
getFontManifest() {
return undefined;
}
handleCompression() {
// For the web server layer, compression is automatically handled by the
// upstream proxy (edge runtime or node server) and we can simply skip here.
}
async handleUpgrade() {
// The web server does not support web sockets.
}
async getFallbackErrorComponents(_url) {
// The web server does not need to handle fallback errors in production.
return null;
}
getRoutesManifest() {
// The web server does not need to handle rewrite rules. This is done by the
// upstream proxy (edge runtime or node server).
return undefined;
}
getMiddleware() {
// The web server does not need to handle middleware. This is done by the
// upstream proxy (edge runtime or node server).
return Promise.resolve(undefined);
}
getFilesystemPaths() {
return new Set();
}
getinterceptionRoutePatterns() {
var _this_serverOptions_webServerConfig_interceptionRouteRewrites;
return ((_this_serverOptions_webServerConfig_interceptionRouteRewrites = this.serverOptions.webServerConfig.interceptionRouteRewrites) == null ? void 0 : _this_serverOptions_webServerConfig_interceptionRouteRewrites.map((rewrite)=>new RegExp(buildCustomRoute('rewrite', rewrite).regex))) ?? [];
}
async loadInstrumentationModule() {
return await getEdgeInstrumentationModule();
}
async instrumentationOnRequestError(...args) {
await super.instrumentationOnRequestError(...args);
const err = args[0];
if (process.env.NODE_ENV !== 'production' && typeof __next_log_error__ === 'function') {
__next_log_error__(err);
} else {
console.error(err);
}
}
}
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