420 lines
20 KiB
JavaScript
420 lines
20 KiB
JavaScript
// this must come first as it includes require hooks
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// This is required before other imports to ensure the require hook is setup.
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import "../node-polyfill-fetch";
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import "../node-environment";
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import "../require-hook";
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import "../../lib/polyfill-promise-with-resolvers";
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import url from "url";
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import path from "path";
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import loadConfig from "../config";
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import { serveStatic } from "../serve-static";
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import setupDebug from "next/dist/compiled/debug";
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import { Telemetry } from "../../telemetry/storage";
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import { DecodeError } from "../../shared/lib/utils";
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import { findPagesDir } from "../../lib/find-pages-dir";
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import { setupFsCheck } from "./router-utils/filesystem";
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import { proxyRequest } from "./router-utils/proxy-request";
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import { isAbortError, pipeReadable } from "../pipe-readable";
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import { getResolveRoutes } from "./router-utils/resolve-routes";
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import { getRequestMeta } from "../request-meta";
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import { pathHasPrefix } from "../../shared/lib/router/utils/path-has-prefix";
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import { removePathPrefix } from "../../shared/lib/router/utils/remove-path-prefix";
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import setupCompression from "next/dist/compiled/compression";
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import { NoFallbackError } from "../base-server";
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import { signalFromNodeResponse } from "../web/spec-extension/adapters/next-request";
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import { PHASE_PRODUCTION_SERVER, PHASE_DEVELOPMENT_SERVER, PERMANENT_REDIRECT_STATUS } from "../../shared/lib/constants";
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import { DevBundlerService } from "./dev-bundler-service";
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const debug = setupDebug("next:router-server:main");
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const requestHandlers = {};
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export async function initialize(opts) {
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process.title = "next-router-worker";
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if (!process.env.NODE_ENV) {
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// @ts-ignore not readonly
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process.env.NODE_ENV = opts.dev ? "development" : "production";
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}
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const config = await loadConfig(opts.dev ? PHASE_DEVELOPMENT_SERVER : PHASE_PRODUCTION_SERVER, opts.dir, {
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silent: false
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});
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let compress;
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if ((config == null ? void 0 : config.compress) !== false) {
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compress = setupCompression();
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}
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const fsChecker = await setupFsCheck({
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dev: opts.dev,
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dir: opts.dir,
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config,
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minimalMode: opts.minimalMode
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});
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const renderServer = {};
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let developmentBundler;
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let devBundlerService;
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if (opts.dev) {
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const telemetry = new Telemetry({
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distDir: path.join(opts.dir, config.distDir)
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});
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const { pagesDir, appDir } = findPagesDir(opts.dir);
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const { setupDevBundler } = require("./router-utils/setup-dev-bundler");
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developmentBundler = await setupDevBundler({
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// Passed here but the initialization of this object happens below, doing the initialization before the setupDev call breaks.
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renderServer,
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appDir,
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pagesDir,
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telemetry,
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fsChecker,
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dir: opts.dir,
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nextConfig: config,
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isCustomServer: opts.customServer,
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turbo: !!process.env.TURBOPACK,
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port: opts.port
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});
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devBundlerService = new DevBundlerService(developmentBundler, // The request handler is assigned below, this allows us to create a lazy
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// reference to it.
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(req, res)=>{
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return requestHandlers[opts.dir](req, res);
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});
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}
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renderServer.instance = require("./render-server");
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const renderServerOpts = {
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port: opts.port,
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dir: opts.dir,
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hostname: opts.hostname,
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minimalMode: opts.minimalMode,
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dev: !!opts.dev,
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server: opts.server,
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isNodeDebugging: !!opts.isNodeDebugging,
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serverFields: (developmentBundler == null ? void 0 : developmentBundler.serverFields) || {},
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experimentalTestProxy: !!opts.experimentalTestProxy,
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experimentalHttpsServer: !!opts.experimentalHttpsServer,
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bundlerService: devBundlerService
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};
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// pre-initialize workers
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const handlers = await renderServer.instance.initialize(renderServerOpts);
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const logError = async (type, err)=>{
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await (developmentBundler == null ? void 0 : developmentBundler.logErrorWithOriginalStack(err, type));
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};
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process.on("uncaughtException", logError.bind(null, "uncaughtException"));
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process.on("unhandledRejection", logError.bind(null, "unhandledRejection"));
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const resolveRoutes = getResolveRoutes(fsChecker, config, opts, renderServer.instance, renderServerOpts, developmentBundler == null ? void 0 : developmentBundler.ensureMiddleware);
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const requestHandlerImpl = async (req, res)=>{
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if (compress) {
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// @ts-expect-error not express req/res
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compress(req, res, ()=>{});
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}
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req.on("error", (_err)=>{
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// TODO: log socket errors?
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});
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res.on("error", (_err)=>{
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// TODO: log socket errors?
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});
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const invokedOutputs = new Set();
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async function invokeRender(parsedUrl, invokePath, handleIndex, additionalInvokeHeaders = {}) {
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var _fsChecker_getMiddlewareMatchers;
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// invokeRender expects /api routes to not be locale prefixed
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// so normalize here before continuing
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if (config.i18n && removePathPrefix(invokePath, config.basePath).startsWith(`/${parsedUrl.query.__nextLocale}/api`)) {
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invokePath = fsChecker.handleLocale(removePathPrefix(invokePath, config.basePath)).pathname;
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}
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if (req.headers["x-nextjs-data"] && ((_fsChecker_getMiddlewareMatchers = fsChecker.getMiddlewareMatchers()) == null ? void 0 : _fsChecker_getMiddlewareMatchers.length) && removePathPrefix(invokePath, config.basePath) === "/404") {
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res.setHeader("x-nextjs-matched-path", parsedUrl.pathname || "");
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res.statusCode = 200;
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res.setHeader("content-type", "application/json");
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res.end("{}");
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return null;
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}
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if (!handlers) {
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throw new Error("Failed to initialize render server");
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}
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const invokeHeaders = {
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...req.headers,
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"x-middleware-invoke": "",
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"x-invoke-path": invokePath,
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"x-invoke-query": encodeURIComponent(JSON.stringify(parsedUrl.query)),
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"x-forwarded-host": req.headers["x-forwarded-host"] ?? req.headers.host ?? opts.hostname,
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"x-forwarded-port": req.headers["x-forwarded-port"] ?? opts.port.toString(),
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"x-forwarded-proto": req.headers["x-forwarded-proto"] ?? req.socket.encrypted ? "https" : "http",
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"x-forwarded-for": req.headers["x-forwarded-for"] ?? req.socket.remoteAddress,
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...additionalInvokeHeaders || {}
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};
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Object.assign(req.headers, invokeHeaders);
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debug("invokeRender", req.url, invokeHeaders);
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try {
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var _renderServer_instance;
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const initResult = await (renderServer == null ? void 0 : (_renderServer_instance = renderServer.instance) == null ? void 0 : _renderServer_instance.initialize(renderServerOpts));
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try {
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await (initResult == null ? void 0 : initResult.requestHandler(req, res));
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} catch (err) {
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if (err instanceof NoFallbackError) {
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// eslint-disable-next-line
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await handleRequest(handleIndex + 1);
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return;
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}
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throw err;
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}
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return;
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} catch (e) {
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// If the client aborts before we can receive a response object (when
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// the headers are flushed), then we can early exit without further
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// processing.
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if (isAbortError(e)) {
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return;
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}
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throw e;
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}
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}
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const handleRequest = async (handleIndex)=>{
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if (handleIndex > 5) {
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throw new Error(`Attempted to handle request too many times ${req.url}`);
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}
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// handle hot-reloader first
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if (developmentBundler) {
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const origUrl = req.url || "/";
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if (config.basePath && pathHasPrefix(origUrl, config.basePath)) {
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req.url = removePathPrefix(origUrl, config.basePath);
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}
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const parsedUrl = url.parse(req.url || "/");
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const hotReloaderResult = await developmentBundler.hotReloader.run(req, res, parsedUrl);
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if (hotReloaderResult.finished) {
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return hotReloaderResult;
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}
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req.url = origUrl;
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}
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const { finished, parsedUrl, statusCode, resHeaders, bodyStream, matchedOutput } = await resolveRoutes({
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req,
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res,
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isUpgradeReq: false,
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signal: signalFromNodeResponse(res),
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invokedOutputs
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});
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if (res.closed || res.finished) {
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return;
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}
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if (developmentBundler && (matchedOutput == null ? void 0 : matchedOutput.type) === "devVirtualFsItem") {
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const origUrl = req.url || "/";
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if (config.basePath && pathHasPrefix(origUrl, config.basePath)) {
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req.url = removePathPrefix(origUrl, config.basePath);
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}
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if (resHeaders) {
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for (const key of Object.keys(resHeaders)){
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res.setHeader(key, resHeaders[key]);
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}
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}
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const result = await developmentBundler.requestHandler(req, res);
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if (result.finished) {
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return;
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}
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// TODO: throw invariant if we resolved to this but it wasn't handled?
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req.url = origUrl;
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}
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debug("requestHandler!", req.url, {
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matchedOutput,
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statusCode,
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resHeaders,
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bodyStream: !!bodyStream,
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parsedUrl: {
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pathname: parsedUrl.pathname,
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query: parsedUrl.query
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},
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finished
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});
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// apply any response headers from routing
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for (const key of Object.keys(resHeaders || {})){
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res.setHeader(key, resHeaders[key]);
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}
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// handle redirect
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if (!bodyStream && statusCode && statusCode > 300 && statusCode < 400) {
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const destination = url.format(parsedUrl);
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res.statusCode = statusCode;
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res.setHeader("location", destination);
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if (statusCode === PERMANENT_REDIRECT_STATUS) {
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res.setHeader("Refresh", `0;url=${destination}`);
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}
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return res.end(destination);
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}
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// handle middleware body response
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if (bodyStream) {
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res.statusCode = statusCode || 200;
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return await pipeReadable(bodyStream, res);
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}
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if (finished && parsedUrl.protocol) {
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var _getRequestMeta;
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return await proxyRequest(req, res, parsedUrl, undefined, (_getRequestMeta = getRequestMeta(req, "__NEXT_CLONABLE_BODY")) == null ? void 0 : _getRequestMeta.cloneBodyStream(), config.experimental.proxyTimeout);
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}
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if ((matchedOutput == null ? void 0 : matchedOutput.fsPath) && matchedOutput.itemPath) {
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if (opts.dev && (fsChecker.appFiles.has(matchedOutput.itemPath) || fsChecker.pageFiles.has(matchedOutput.itemPath))) {
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res.statusCode = 500;
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await invokeRender(parsedUrl, "/_error", handleIndex, {
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"x-invoke-status": "500",
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"x-invoke-error": JSON.stringify({
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message: `A conflicting public file and page file was found for path ${matchedOutput.itemPath} https://nextjs.org/docs/messages/conflicting-public-file-page`
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})
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});
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return;
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}
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if (!res.getHeader("cache-control") && matchedOutput.type === "nextStaticFolder") {
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if (opts.dev) {
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res.setHeader("Cache-Control", "no-store, must-revalidate");
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} else {
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res.setHeader("Cache-Control", "public, max-age=31536000, immutable");
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}
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}
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if (!(req.method === "GET" || req.method === "HEAD")) {
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res.setHeader("Allow", [
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"GET",
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"HEAD"
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]);
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res.statusCode = 405;
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return await invokeRender(url.parse("/405", true), "/405", handleIndex, {
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"x-invoke-status": "405"
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});
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}
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try {
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return await serveStatic(req, res, matchedOutput.itemPath, {
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root: matchedOutput.itemsRoot,
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// Ensures that etags are not generated for static files when disabled.
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etag: config.generateEtags
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});
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} catch (err) {
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/**
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* Hardcoded every possible error status code that could be thrown by "serveStatic" method
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* This is done by searching "this.error" inside "send" module's source code:
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* https://github.com/pillarjs/send/blob/master/index.js
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* https://github.com/pillarjs/send/blob/develop/index.js
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*/ const POSSIBLE_ERROR_CODE_FROM_SERVE_STATIC = new Set([
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// send module will throw 500 when header is already sent or fs.stat error happens
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// https://github.com/pillarjs/send/blob/53f0ab476145670a9bdd3dc722ab2fdc8d358fc6/index.js#L392
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// Note: we will use Next.js built-in 500 page to handle 500 errors
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// 500,
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// send module will throw 404 when file is missing
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// https://github.com/pillarjs/send/blob/53f0ab476145670a9bdd3dc722ab2fdc8d358fc6/index.js#L421
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// Note: we will use Next.js built-in 404 page to handle 404 errors
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// 404,
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// send module will throw 403 when redirecting to a directory without enabling directory listing
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// https://github.com/pillarjs/send/blob/53f0ab476145670a9bdd3dc722ab2fdc8d358fc6/index.js#L484
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// Note: Next.js throws a different error (without status code) for directory listing
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// 403,
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// send module will throw 400 when fails to normalize the path
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// https://github.com/pillarjs/send/blob/53f0ab476145670a9bdd3dc722ab2fdc8d358fc6/index.js#L520
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400,
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// send module will throw 412 with conditional GET request
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// https://github.com/pillarjs/send/blob/53f0ab476145670a9bdd3dc722ab2fdc8d358fc6/index.js#L632
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412,
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// send module will throw 416 when range is not satisfiable
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// https://github.com/pillarjs/send/blob/53f0ab476145670a9bdd3dc722ab2fdc8d358fc6/index.js#L669
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416
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]);
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let validErrorStatus = POSSIBLE_ERROR_CODE_FROM_SERVE_STATIC.has(err.statusCode);
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// normalize non-allowed status codes
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if (!validErrorStatus) {
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err.statusCode = 400;
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}
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if (typeof err.statusCode === "number") {
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const invokePath = `/${err.statusCode}`;
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const invokeStatus = `${err.statusCode}`;
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res.statusCode = err.statusCode;
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return await invokeRender(url.parse(invokePath, true), invokePath, handleIndex, {
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"x-invoke-status": invokeStatus
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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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if (matchedOutput) {
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invokedOutputs.add(matchedOutput.itemPath);
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return await invokeRender(parsedUrl, parsedUrl.pathname || "/", handleIndex, {
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"x-invoke-output": matchedOutput.itemPath
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});
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}
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// 404 case
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res.setHeader("Cache-Control", "no-cache, no-store, max-age=0, must-revalidate");
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// Short-circuit favicon.ico serving so that the 404 page doesn't get built as favicon is requested by the browser when loading any route.
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if (opts.dev && !matchedOutput && parsedUrl.pathname === "/favicon.ico") {
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res.statusCode = 404;
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res.end("");
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return null;
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}
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const appNotFound = opts.dev ? developmentBundler == null ? void 0 : developmentBundler.serverFields.hasAppNotFound : await fsChecker.getItem("/_not-found");
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res.statusCode = 404;
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if (appNotFound) {
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return await invokeRender(parsedUrl, opts.dev ? "/not-found" : "/_not-found", handleIndex, {
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"x-invoke-status": "404"
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});
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}
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await invokeRender(parsedUrl, "/404", handleIndex, {
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"x-invoke-status": "404"
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});
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};
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try {
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await handleRequest(0);
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} catch (err) {
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try {
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let invokePath = "/500";
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let invokeStatus = "500";
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if (err instanceof DecodeError) {
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invokePath = "/400";
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invokeStatus = "400";
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} else {
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console.error(err);
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}
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res.statusCode = Number(invokeStatus);
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return await invokeRender(url.parse(invokePath, true), invokePath, 0, {
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"x-invoke-status": invokeStatus
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});
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} catch (err2) {
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console.error(err2);
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}
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res.statusCode = 500;
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res.end("Internal Server Error");
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}
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};
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let requestHandler = requestHandlerImpl;
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if (opts.experimentalTestProxy) {
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// Intercept fetch and other testmode apis.
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const { wrapRequestHandlerWorker, interceptTestApis } = require("../../experimental/testmode/server");
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requestHandler = wrapRequestHandlerWorker(requestHandler);
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interceptTestApis();
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}
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requestHandlers[opts.dir] = requestHandler;
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const upgradeHandler = async (req, socket, head)=>{
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try {
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req.on("error", (_err)=>{
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// TODO: log socket errors?
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// console.error(_err);
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});
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socket.on("error", (_err)=>{
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// TODO: log socket errors?
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// console.error(_err);
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});
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if (opts.dev && developmentBundler) {
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var _req_url;
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if ((_req_url = req.url) == null ? void 0 : _req_url.includes(`/_next/webpack-hmr`)) {
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return developmentBundler.hotReloader.onHMR(req, socket, head);
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}
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}
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const { matchedOutput, parsedUrl } = await resolveRoutes({
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req,
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res: socket,
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isUpgradeReq: true,
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signal: signalFromNodeResponse(socket)
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});
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// TODO: allow upgrade requests to pages/app paths?
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// this was not previously supported
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if (matchedOutput) {
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return socket.end();
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}
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if (parsedUrl.protocol) {
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return await proxyRequest(req, socket, parsedUrl, head);
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}
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// no match close socket
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socket.end();
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} catch (err) {
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console.error("Error handling upgrade request", err);
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socket.end();
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}
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};
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return [
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requestHandler,
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upgradeHandler
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];
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}
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//# sourceMappingURL=router-server.js.map
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