251 lines
9.5 KiB
JavaScript
251 lines
9.5 KiB
JavaScript
import { byteLength } from "./api-utils/web";
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import BaseServer, { NoFallbackError } from "./base-server";
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import { generateETag } from "./lib/etag";
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import { addRequestMeta } from "./request-meta";
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import WebResponseCache from "./response-cache/web";
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import { isAPIRoute } from "../lib/is-api-route";
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import { removeTrailingSlash } from "../shared/lib/router/utils/remove-trailing-slash";
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import { isDynamicRoute } from "../shared/lib/router/utils";
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import { interpolateDynamicPath, normalizeVercelUrl } from "./server-utils";
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import { getNamedRouteRegex } from "../shared/lib/router/utils/route-regex";
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import { IncrementalCache } from "./lib/incremental-cache";
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export default class NextWebServer extends BaseServer {
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constructor(options){
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super(options);
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// Extend `renderOpts`.
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Object.assign(this.renderOpts, options.webServerConfig.extendRenderOpts);
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}
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getIncrementalCache({ requestHeaders }) {
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const dev = !!this.renderOpts.dev;
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// incremental-cache is request specific
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// although can have shared caches in module scope
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// per-cache handler
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return new IncrementalCache({
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dev,
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requestHeaders,
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requestProtocol: "https",
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appDir: this.hasAppDir,
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allowedRevalidateHeaderKeys: this.nextConfig.experimental.allowedRevalidateHeaderKeys,
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minimalMode: this.minimalMode,
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fetchCache: true,
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fetchCacheKeyPrefix: this.nextConfig.experimental.fetchCacheKeyPrefix,
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maxMemoryCacheSize: this.nextConfig.experimental.isrMemoryCacheSize,
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flushToDisk: false,
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CurCacheHandler: this.serverOptions.webServerConfig.incrementalCacheHandler,
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getPrerenderManifest: ()=>this.getPrerenderManifest()
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});
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}
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getResponseCache() {
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return new WebResponseCache(this.minimalMode);
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}
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async hasPage(page) {
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return page === this.serverOptions.webServerConfig.page;
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}
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getBuildId() {
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return this.serverOptions.webServerConfig.extendRenderOpts.buildId;
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}
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getHasAppDir() {
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return this.serverOptions.webServerConfig.pagesType === "app";
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}
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getPagesManifest() {
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return {
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// keep same theme but server path doesn't need to be accurate
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[this.serverOptions.webServerConfig.pathname]: `server${this.serverOptions.webServerConfig.page}.js`
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};
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}
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getAppPathsManifest() {
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const page = this.serverOptions.webServerConfig.page;
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return {
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[this.serverOptions.webServerConfig.page]: `app${page}.js`
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};
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}
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attachRequestMeta(req, parsedUrl) {
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addRequestMeta(req, "__NEXT_INIT_QUERY", {
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...parsedUrl.query
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});
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}
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getPrerenderManifest() {
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var _this_renderOpts;
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const { prerenderManifest } = this.serverOptions.webServerConfig;
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if (((_this_renderOpts = this.renderOpts) == null ? void 0 : _this_renderOpts.dev) || !prerenderManifest) {
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return {
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version: -1,
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routes: {},
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dynamicRoutes: {},
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notFoundRoutes: [],
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preview: {
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previewModeId: "development-id"
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}
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};
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}
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return prerenderManifest;
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}
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getNextFontManifest() {
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return this.serverOptions.webServerConfig.extendRenderOpts.nextFontManifest;
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}
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async handleCatchallRenderRequest(req, res, parsedUrl) {
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let { pathname, query } = parsedUrl;
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if (!pathname) {
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throw new Error("pathname is undefined");
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}
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// interpolate query information into page for dynamic route
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// so that rewritten paths are handled properly
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const normalizedPage = this.serverOptions.webServerConfig.pathname;
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if (pathname !== normalizedPage) {
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pathname = normalizedPage;
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if (isDynamicRoute(pathname)) {
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const routeRegex = getNamedRouteRegex(pathname, false);
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pathname = interpolateDynamicPath(pathname, query, routeRegex);
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normalizeVercelUrl(req, true, Object.keys(routeRegex.routeKeys), true, routeRegex);
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}
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}
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// next.js core assumes page path without trailing slash
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pathname = removeTrailingSlash(pathname);
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if (this.i18nProvider) {
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const { detectedLocale } = await this.i18nProvider.analyze(pathname);
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if (detectedLocale) {
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parsedUrl.query.__nextLocale = detectedLocale;
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}
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}
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const bubbleNoFallback = !!query._nextBubbleNoFallback;
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if (isAPIRoute(pathname)) {
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delete query._nextBubbleNoFallback;
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}
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try {
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await this.render(req, res, pathname, query, parsedUrl, true);
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return {
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finished: true
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};
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} catch (err) {
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if (err instanceof NoFallbackError && bubbleNoFallback) {
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return {
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finished: false
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};
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}
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throw err;
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}
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}
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renderHTML(req, res, pathname, query, renderOpts) {
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const { renderToHTML } = this.serverOptions.webServerConfig;
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if (!renderToHTML) {
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throw new Error("Invariant: routeModule should be configured when rendering pages");
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}
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// For edge runtime if the pathname hit as /_not-found entrypoint,
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// override the pathname to /404 for rendering
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if (pathname === (renderOpts.dev ? "/not-found" : "/_not-found")) {
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pathname = "/404";
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}
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return renderToHTML(req, res, pathname, query, Object.assign(renderOpts, {
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disableOptimizedLoading: true,
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runtime: "experimental-edge"
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}));
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}
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async sendRenderResult(_req, res, options) {
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res.setHeader("X-Edge-Runtime", "1");
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// Add necessary headers.
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// @TODO: Share the isomorphic logic with server/send-payload.ts.
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if (options.poweredByHeader && options.type === "html") {
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res.setHeader("X-Powered-By", "Next.js");
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}
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if (!res.getHeader("Content-Type")) {
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res.setHeader("Content-Type", options.result.contentType ? options.result.contentType : options.type === "json" ? "application/json" : "text/html; charset=utf-8");
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}
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if (options.result.isDynamic) {
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const writer = res.transformStream.writable.getWriter();
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let innerClose;
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const target = {
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write: (chunk)=>writer.write(chunk),
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end: ()=>writer.close(),
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on (_event, cb) {
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innerClose = cb;
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},
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off (_event, _cb) {
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innerClose = undefined;
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}
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};
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const onClose = ()=>{
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innerClose == null ? void 0 : innerClose();
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};
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// No, this cannot be replaced with `finally`, because early cancelling
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// the stream will create a rejected promise, and finally will create an
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// unhandled rejection.
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writer.closed.then(onClose, onClose);
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options.result.pipe(target);
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} else {
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const payload = await options.result.toUnchunkedString();
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res.setHeader("Content-Length", String(byteLength(payload)));
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if (options.generateEtags) {
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res.setHeader("ETag", generateETag(payload));
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}
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res.body(payload);
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}
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res.send();
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}
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async findPageComponents({ page, query, params }) {
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const result = await this.serverOptions.webServerConfig.loadComponent(page);
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if (!result) return null;
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return {
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query: {
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...query || {},
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...params || {}
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},
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components: result
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};
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}
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// Below are methods that are not implemented by the web server as they are
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// handled by the upstream proxy (edge runtime or node server).
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async runApi() {
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// This web server does not need to handle API requests.
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return true;
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}
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async handleApiRequest() {
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// Edge API requests are handled separately in minimal mode.
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return false;
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}
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loadEnvConfig() {
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// The web server does not need to load the env config. This is done by the
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// runtime already.
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}
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getPublicDir() {
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// Public files are not handled by the web server.
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return "";
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}
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getHasStaticDir() {
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return false;
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}
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async getFallback() {
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return "";
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}
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getFontManifest() {
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return undefined;
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}
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handleCompression() {
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// For the web server layer, compression is automatically handled by the
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// upstream proxy (edge runtime or node server) and we can simply skip here.
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}
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async handleUpgrade() {
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// The web server does not support web sockets.
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}
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async getFallbackErrorComponents() {
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// The web server does not need to handle fallback errors in production.
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return null;
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}
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getRoutesManifest() {
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// The web server does not need to handle rewrite rules. This is done by the
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// upstream proxy (edge runtime or node server).
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return undefined;
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}
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getMiddleware() {
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// The web server does not need to handle middleware. This is done by the
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// upstream proxy (edge runtime or node server).
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return undefined;
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}
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getFilesystemPaths() {
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return new Set();
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}
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async getPrefetchRsc() {
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return null;
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}
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}
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//# sourceMappingURL=web-server.js.map
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