2018-12-09 22:46:45 +01:00
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/* eslint-disable import/first */
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2019-03-01 20:51:13 +01:00
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import { IncomingMessage, ServerResponse } from 'http'
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2017-06-01 02:16:32 +02:00
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import { resolve, join, sep } from 'path'
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2018-12-09 22:46:45 +01:00
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import { parse as parseUrl, UrlWithParsedQuery } from 'url'
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import { parse as parseQs, ParsedUrlQuery } from 'querystring'
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2017-03-07 19:43:56 +01:00
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import fs from 'fs'
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2019-03-01 20:51:13 +01:00
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import { renderToHTML } from './render'
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import { sendHTML } from './send-html'
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import { serveStatic } from './serve-static'
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import Router, { route, Route } from './router'
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2018-11-18 20:44:50 +01:00
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import { isInternalUrl, isBlockedPage } from './utils'
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2018-10-02 00:55:31 +02:00
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import loadConfig from 'next-server/next-config'
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2019-03-01 20:51:13 +01:00
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import {
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PHASE_PRODUCTION_SERVER,
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BUILD_ID_FILE,
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CLIENT_STATIC_FILES_PATH,
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CLIENT_STATIC_FILES_RUNTIME,
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} from 'next-server/constants'
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2018-02-26 12:03:27 +01:00
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import * as envConfig from '../lib/runtime-config'
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2019-03-01 20:51:13 +01:00
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import { loadComponents } from './load-components'
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2018-12-09 22:46:45 +01:00
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type NextConfig = any
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type ServerConstructor = {
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2019-03-01 20:51:13 +01:00
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dir?: string
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staticMarkup?: boolean
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quiet?: boolean
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2018-12-31 14:44:27 +01:00
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conf?: NextConfig,
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2018-12-09 22:46:45 +01:00
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}
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2017-04-07 19:58:35 +02:00
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2019-04-02 16:09:34 +02:00
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const ENDING_IN_JSON_REGEX = /\.json$/
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2016-10-06 01:52:50 +02:00
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export default class Server {
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2018-12-09 22:46:45 +01:00
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dir: string
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quiet: boolean
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nextConfig: NextConfig
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distDir: string
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buildId: string
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renderOpts: {
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2019-03-01 20:51:13 +01:00
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ampEnabled: boolean
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2019-04-02 20:01:34 +02:00
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noDirtyAmp: boolean
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2019-04-02 16:09:34 +02:00
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ampBindInitData: boolean
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2019-03-01 20:51:13 +01:00
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staticMarkup: boolean
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buildId: string
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generateEtags: boolean
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runtimeConfig?: { [key: string]: any }
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2018-12-31 14:44:27 +01:00
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assetPrefix?: string,
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2018-12-09 22:46:45 +01:00
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}
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router: Router
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2019-03-01 20:51:13 +01:00
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public constructor({
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dir = '.',
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staticMarkup = false,
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quiet = false,
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conf = null,
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}: ServerConstructor = {}) {
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2016-10-06 13:05:52 +02:00
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this.dir = resolve(dir)
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2016-12-16 21:33:08 +01:00
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this.quiet = quiet
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2018-09-28 14:05:23 +02:00
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const phase = this.currentPhase()
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2018-06-04 11:38:46 +02:00
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this.nextConfig = loadConfig(phase, this.dir, conf)
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2018-06-13 20:30:55 +02:00
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this.distDir = join(this.dir, this.nextConfig.distDir)
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2018-02-05 13:39:32 +01:00
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2018-03-13 14:18:59 +01:00
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// Only serverRuntimeConfig needs the default
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// publicRuntimeConfig gets it's default in client/index.js
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2019-03-01 20:51:13 +01:00
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const {
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serverRuntimeConfig = {},
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publicRuntimeConfig,
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assetPrefix,
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generateEtags,
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target,
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} = this.nextConfig
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2019-01-29 13:42:07 +01:00
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2019-03-01 20:51:13 +01:00
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if (process.env.NODE_ENV === 'production' && target !== 'server')
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throw new Error(
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'Cannot start server when target is not server. https://err.sh/zeit/next.js/next-start-serverless',
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)
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2018-03-13 14:18:59 +01:00
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2018-09-28 14:05:23 +02:00
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this.buildId = this.readBuildId()
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2017-03-07 19:43:56 +01:00
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this.renderOpts = {
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2019-02-14 16:22:57 +01:00
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ampEnabled: this.nextConfig.experimental.amp,
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2019-04-02 20:01:34 +02:00
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noDirtyAmp: this.nextConfig.experimental.noDirtyAmp,
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2019-04-02 16:09:34 +02:00
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ampBindInitData: this.nextConfig.experimental.ampBindInitData,
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2017-03-07 19:43:56 +01:00
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staticMarkup,
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2017-04-18 06:18:43 +02:00
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buildId: this.buildId,
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2018-12-31 14:44:27 +01:00
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generateEtags,
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2017-03-07 19:43:56 +01:00
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}
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2016-12-16 21:33:08 +01:00
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2018-02-27 17:50:14 +01:00
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// Only the `publicRuntimeConfig` key is exposed to the client side
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// It'll be rendered as part of __NEXT_DATA__ on the client side
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if (publicRuntimeConfig) {
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this.renderOpts.runtimeConfig = publicRuntimeConfig
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2018-02-26 12:03:27 +01:00
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}
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2018-02-27 17:50:14 +01:00
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// Initialize next/config with the environment configuration
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envConfig.setConfig({
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serverRuntimeConfig,
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2018-12-31 14:44:27 +01:00
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publicRuntimeConfig,
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2018-02-27 17:50:14 +01:00
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})
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2018-10-01 16:31:47 +02:00
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const routes = this.generateRoutes()
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this.router = new Router(routes)
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2018-02-27 17:50:14 +01:00
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this.setAssetPrefix(assetPrefix)
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2016-12-16 21:33:08 +01:00
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}
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2016-10-06 01:52:50 +02:00
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2018-12-31 14:44:27 +01:00
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private currentPhase(): string {
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2019-01-26 02:01:16 +01:00
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return PHASE_PRODUCTION_SERVER
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2017-07-15 12:29:10 +02:00
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}
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2018-12-18 17:12:49 +01:00
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private logError(...args: any): void {
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2018-12-31 14:44:27 +01:00
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if (this.quiet) return
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// tslint:disable-next-line
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2018-12-18 17:12:49 +01:00
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console.error(...args)
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}
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2019-03-01 20:51:13 +01:00
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private handleRequest(
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req: IncomingMessage,
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res: ServerResponse,
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parsedUrl?: UrlWithParsedQuery,
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): Promise<void> {
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2017-04-07 19:58:35 +02:00
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// Parse url if parsedUrl not provided
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2017-07-02 07:52:39 +02:00
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if (!parsedUrl || typeof parsedUrl !== 'object') {
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2018-12-09 22:46:45 +01:00
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const url: any = req.url
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parsedUrl = parseUrl(url, true)
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2017-04-07 19:58:35 +02:00
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}
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2017-02-09 04:22:48 +01:00
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2017-04-07 19:58:35 +02:00
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// Parse the querystring ourselves if the user doesn't handle querystring parsing
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if (typeof parsedUrl.query === 'string') {
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parsedUrl.query = parseQs(parsedUrl.query)
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2016-12-16 21:33:08 +01:00
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}
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2017-04-07 19:58:35 +02:00
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2017-06-19 09:27:35 +02:00
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res.statusCode = 200
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2019-03-01 20:51:13 +01:00
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return this.run(req, res, parsedUrl).catch((err) => {
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this.logError(err)
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res.statusCode = 500
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res.end('Internal Server Error')
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})
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2017-04-07 19:58:35 +02:00
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}
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2018-12-31 14:44:27 +01:00
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public getRequestHandler() {
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2017-04-07 19:58:35 +02:00
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return this.handleRequest.bind(this)
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2016-10-06 01:52:50 +02:00
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}
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2018-12-31 14:44:27 +01:00
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public setAssetPrefix(prefix?: string) {
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2018-02-03 17:12:01 +01:00
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this.renderOpts.assetPrefix = prefix ? prefix.replace(/\/$/, '') : ''
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2018-02-02 15:43:36 +01:00
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}
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2018-10-01 16:31:47 +02:00
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// Backwards compatibility
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2018-12-31 14:44:27 +01:00
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public async prepare(): Promise<void> {}
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2016-10-17 09:07:41 +02:00
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2018-09-28 14:05:23 +02:00
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// Backwards compatibility
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2018-12-31 14:44:27 +01:00
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private async close(): Promise<void> {}
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2018-09-28 14:05:23 +02:00
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2018-12-31 14:44:27 +01:00
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private setImmutableAssetCacheControl(res: ServerResponse) {
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2018-09-28 14:05:23 +02:00
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res.setHeader('Cache-Control', 'public, max-age=31536000, immutable')
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2016-12-17 05:04:40 +01:00
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}
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2018-12-31 14:44:27 +01:00
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private generateRoutes(): Route[] {
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2018-12-09 22:46:45 +01:00
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const routes: Route[] = [
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2018-09-28 14:05:23 +02:00
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{
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2018-10-01 16:31:47 +02:00
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match: route('/_next/static/:path*'),
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2018-12-09 22:46:45 +01:00
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fn: async (req, res, params, parsedUrl) => {
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2018-09-28 14:05:23 +02:00
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// The commons folder holds commonschunk files
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// The chunks folder holds dynamic entries
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// The buildId folder holds pages and potentially other assets. As buildId changes per build it can be long-term cached.
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2019-03-01 20:51:13 +01:00
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if (
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params.path[0] === CLIENT_STATIC_FILES_RUNTIME ||
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params.path[0] === 'chunks' ||
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params.path[0] === this.buildId
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) {
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2018-09-28 14:05:23 +02:00
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this.setImmutableAssetCacheControl(res)
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2018-05-19 21:43:18 +02:00
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}
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2019-03-01 20:51:13 +01:00
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const p = join(
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this.distDir,
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CLIENT_STATIC_FILES_PATH,
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...(params.path || []),
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)
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2018-12-09 22:46:45 +01:00
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await this.serveStatic(req, res, p, parsedUrl)
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2018-12-31 14:44:27 +01:00
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},
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2017-04-03 20:10:24 +02:00
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},
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2018-09-28 14:05:23 +02:00
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{
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2018-10-01 16:31:47 +02:00
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match: route('/_next/:path*'),
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2018-09-28 14:05:23 +02:00
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// This path is needed because `render()` does a check for `/_next` and the calls the routing again
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2018-12-09 22:46:45 +01:00
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fn: async (req, res, _params, parsedUrl) => {
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2018-09-28 14:05:23 +02:00
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await this.render404(req, res, parsedUrl)
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2018-12-31 14:44:27 +01:00
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},
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2018-09-28 14:05:23 +02:00
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},
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{
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2018-11-14 09:55:25 +01:00
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// It's very important to keep this route's param optional.
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// (but it should support as many params as needed, separated by '/')
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// Otherwise this will lead to a pretty simple DOS attack.
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2018-09-28 14:05:23 +02:00
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// See more: https://github.com/zeit/next.js/issues/2617
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2018-10-01 16:31:47 +02:00
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match: route('/static/:path*'),
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2018-12-09 22:46:45 +01:00
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fn: async (req, res, params, parsedUrl) => {
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2018-09-28 14:05:23 +02:00
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const p = join(this.dir, 'static', ...(params.path || []))
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2018-12-09 22:46:45 +01:00
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await this.serveStatic(req, res, p, parsedUrl)
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2018-12-31 14:44:27 +01:00
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},
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},
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2018-09-28 14:05:23 +02:00
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]
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2018-09-07 14:38:01 +02:00
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2018-09-09 22:32:23 +02:00
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if (this.nextConfig.useFileSystemPublicRoutes) {
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2018-11-14 09:55:25 +01:00
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// It's very important to keep this route's param optional.
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// (but it should support as many params as needed, separated by '/')
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// Otherwise this will lead to a pretty simple DOS attack.
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2018-07-24 11:24:40 +02:00
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// See more: https://github.com/zeit/next.js/issues/2617
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2018-09-28 14:05:23 +02:00
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routes.push({
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2018-10-01 16:31:47 +02:00
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match: route('/:path*'),
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2018-12-09 22:46:45 +01:00
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fn: async (req, res, _params, parsedUrl) => {
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2018-09-28 14:05:23 +02:00
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const { pathname, query } = parsedUrl
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2018-12-31 14:44:27 +01:00
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if (!pathname) {
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2018-12-09 22:46:45 +01:00
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throw new Error('pathname is undefined')
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}
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2019-02-18 15:44:21 +01:00
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2019-03-01 21:35:43 +01:00
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await this.render(req, res, pathname, query, parsedUrl)
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2018-12-31 14:44:27 +01:00
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},
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2018-09-28 14:05:23 +02:00
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})
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2017-01-12 16:38:43 +01:00
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}
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2016-10-06 01:52:50 +02:00
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2018-09-28 14:05:23 +02:00
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return routes
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}
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2019-03-01 20:51:13 +01:00
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private async run(
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req: IncomingMessage,
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res: ServerResponse,
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parsedUrl: UrlWithParsedQuery,
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) {
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2018-11-04 01:22:33 +01:00
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try {
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const fn = this.router.match(req, res, parsedUrl)
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if (fn) {
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await fn()
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return
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}
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} catch (err) {
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if (err.code === 'DECODE_FAILED') {
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res.statusCode = 400
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return this.renderError(null, req, res, '/_error', {})
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}
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throw err
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2017-01-12 16:38:43 +01:00
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}
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if (req.method === 'GET' || req.method === 'HEAD') {
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2017-02-02 07:51:08 +01:00
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await this.render404(req, res, parsedUrl)
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2017-01-12 16:38:43 +01:00
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} else {
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res.statusCode = 501
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2018-09-27 21:10:53 +02:00
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res.end('Not Implemented')
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2016-10-06 01:52:50 +02:00
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}
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}
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2019-03-01 20:51:13 +01:00
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private async sendHTML(
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req: IncomingMessage,
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res: ServerResponse,
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html: string,
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) {
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const { generateEtags } = this.renderOpts
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return sendHTML(req, res, html, { generateEtags })
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2018-12-09 22:46:45 +01:00
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}
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2019-03-01 20:51:13 +01:00
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public async render(
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req: IncomingMessage,
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res: ServerResponse,
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pathname: string,
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query: ParsedUrlQuery = {},
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parsedUrl?: UrlWithParsedQuery,
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): Promise<void> {
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2018-12-09 22:46:45 +01:00
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const url: any = req.url
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if (isInternalUrl(url)) {
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2017-04-07 19:58:35 +02:00
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return this.handleRequest(req, res, parsedUrl)
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}
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2018-11-18 20:44:50 +01:00
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if (isBlockedPage(pathname)) {
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2018-12-09 22:46:45 +01:00
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return this.render404(req, res, parsedUrl)
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2017-07-06 14:29:25 +02:00
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}
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2019-03-01 21:35:43 +01:00
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const html = await this.renderToHTML(req, res, pathname, query, {
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amphtml: query.amp && this.nextConfig.experimental.amp,
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2019-04-05 20:47:25 +02:00
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dataOnly: this.renderOpts.ampBindInitData && Boolean(query.dataOnly) || (req.headers && (req.headers.accept || '').indexOf('application/amp.bind+json') !== -1),
|
2019-03-01 21:35:43 +01:00
|
|
|
})
|
2018-12-09 22:46:45 +01:00
|
|
|
// Request was ended by the user
|
|
|
|
if (html === null) {
|
2018-02-01 23:25:30 +01:00
|
|
|
return
|
|
|
|
}
|
|
|
|
|
2018-12-09 22:46:45 +01:00
|
|
|
return this.sendHTML(req, res, html)
|
2016-12-16 21:33:08 +01:00
|
|
|
}
|
2016-10-19 14:41:45 +02:00
|
|
|
|
2019-03-01 20:51:13 +01:00
|
|
|
private async renderToHTMLWithComponents(
|
|
|
|
req: IncomingMessage,
|
|
|
|
res: ServerResponse,
|
|
|
|
pathname: string,
|
|
|
|
query: ParsedUrlQuery = {},
|
|
|
|
opts: any,
|
|
|
|
) {
|
2019-03-19 20:01:42 +01:00
|
|
|
const result = await loadComponents(this.distDir, this.buildId, pathname, opts)
|
|
|
|
return renderToHTML(req, res, pathname, query, { ...result, ...opts, hasAmp: result.hasAmp })
|
2018-12-18 17:12:49 +01:00
|
|
|
}
|
|
|
|
|
2019-03-01 20:51:13 +01:00
|
|
|
public async renderToHTML(
|
|
|
|
req: IncomingMessage,
|
|
|
|
res: ServerResponse,
|
|
|
|
pathname: string,
|
|
|
|
query: ParsedUrlQuery = {},
|
2019-04-02 16:09:34 +02:00
|
|
|
{ amphtml, dataOnly, hasAmp }: {
|
2019-03-19 20:01:42 +01:00
|
|
|
amphtml?: boolean,
|
|
|
|
hasAmp?: boolean,
|
2019-04-02 16:09:34 +02:00
|
|
|
dataOnly?: boolean,
|
2019-03-19 20:01:42 +01:00
|
|
|
} = {},
|
2019-03-01 20:51:13 +01:00
|
|
|
): Promise<string | null> {
|
2016-11-24 15:03:16 +01:00
|
|
|
try {
|
2018-12-09 22:46:45 +01:00
|
|
|
// To make sure the try/catch is executed
|
2019-03-01 20:51:13 +01:00
|
|
|
const html = await this.renderToHTMLWithComponents(
|
|
|
|
req,
|
|
|
|
res,
|
|
|
|
pathname,
|
|
|
|
query,
|
2019-04-02 16:09:34 +02:00
|
|
|
{ ...this.renderOpts, amphtml, hasAmp, dataOnly },
|
2019-03-01 20:51:13 +01:00
|
|
|
)
|
2018-12-09 22:46:45 +01:00
|
|
|
return html
|
2016-11-24 15:03:16 +01:00
|
|
|
} catch (err) {
|
2019-03-13 19:39:05 +01:00
|
|
|
if (err && err.code === 'ENOENT') {
|
2018-12-13 19:46:16 +01:00
|
|
|
res.statusCode = 404
|
2016-12-16 21:33:08 +01:00
|
|
|
return this.renderErrorToHTML(null, req, res, pathname, query)
|
|
|
|
} else {
|
2018-12-18 17:12:49 +01:00
|
|
|
this.logError(err)
|
2016-12-16 21:33:08 +01:00
|
|
|
res.statusCode = 500
|
|
|
|
return this.renderErrorToHTML(err, req, res, pathname, query)
|
2016-10-06 01:52:50 +02:00
|
|
|
}
|
|
|
|
}
|
2016-11-24 15:03:16 +01:00
|
|
|
}
|
|
|
|
|
2019-03-01 20:51:13 +01:00
|
|
|
public async renderError(
|
|
|
|
err: Error | null,
|
|
|
|
req: IncomingMessage,
|
|
|
|
res: ServerResponse,
|
|
|
|
pathname: string,
|
|
|
|
query: ParsedUrlQuery = {},
|
|
|
|
): Promise<void> {
|
|
|
|
res.setHeader(
|
|
|
|
'Cache-Control',
|
|
|
|
'no-cache, no-store, max-age=0, must-revalidate',
|
|
|
|
)
|
2016-12-16 21:33:08 +01:00
|
|
|
const html = await this.renderErrorToHTML(err, req, res, pathname, query)
|
2018-12-31 14:44:27 +01:00
|
|
|
if (html === null) {
|
2018-12-13 01:00:46 +01:00
|
|
|
return
|
|
|
|
}
|
2018-12-09 22:46:45 +01:00
|
|
|
return this.sendHTML(req, res, html)
|
2016-10-06 01:52:50 +02:00
|
|
|
}
|
|
|
|
|
2019-03-01 20:51:13 +01:00
|
|
|
public async renderErrorToHTML(
|
|
|
|
err: Error | null,
|
|
|
|
req: IncomingMessage,
|
|
|
|
res: ServerResponse,
|
|
|
|
_pathname: string,
|
|
|
|
query: ParsedUrlQuery = {},
|
|
|
|
) {
|
|
|
|
return this.renderToHTMLWithComponents(req, res, '/_error', query, {
|
|
|
|
...this.renderOpts,
|
|
|
|
err,
|
|
|
|
})
|
2016-11-24 15:03:16 +01:00
|
|
|
}
|
|
|
|
|
2019-03-01 20:51:13 +01:00
|
|
|
public async render404(
|
|
|
|
req: IncomingMessage,
|
|
|
|
res: ServerResponse,
|
|
|
|
parsedUrl?: UrlWithParsedQuery,
|
|
|
|
): Promise<void> {
|
2018-12-09 22:46:45 +01:00
|
|
|
const url: any = req.url
|
|
|
|
const { pathname, query } = parsedUrl ? parsedUrl : parseUrl(url, true)
|
2018-12-31 14:44:27 +01:00
|
|
|
if (!pathname) {
|
2018-12-09 22:46:45 +01:00
|
|
|
throw new Error('pathname is undefined')
|
|
|
|
}
|
2016-12-16 21:33:08 +01:00
|
|
|
res.statusCode = 404
|
2017-02-16 03:48:35 +01:00
|
|
|
return this.renderError(null, req, res, pathname, query)
|
2016-12-16 21:33:08 +01:00
|
|
|
}
|
2016-11-03 16:12:37 +01:00
|
|
|
|
2019-03-01 20:51:13 +01:00
|
|
|
public async serveStatic(
|
|
|
|
req: IncomingMessage,
|
|
|
|
res: ServerResponse,
|
|
|
|
path: string,
|
|
|
|
parsedUrl?: UrlWithParsedQuery,
|
|
|
|
): Promise<void> {
|
2017-06-01 02:16:32 +02:00
|
|
|
if (!this.isServeableUrl(path)) {
|
2018-12-09 22:46:45 +01:00
|
|
|
return this.render404(req, res, parsedUrl)
|
2017-06-01 02:16:32 +02:00
|
|
|
}
|
|
|
|
|
2017-01-01 20:36:37 +01:00
|
|
|
try {
|
2018-12-09 22:46:45 +01:00
|
|
|
await serveStatic(req, res, path)
|
2017-01-01 20:36:37 +01:00
|
|
|
} catch (err) {
|
2018-11-30 17:09:23 +01:00
|
|
|
if (err.code === 'ENOENT' || err.statusCode === 404) {
|
2018-12-09 22:46:45 +01:00
|
|
|
this.render404(req, res, parsedUrl)
|
2017-01-01 20:36:37 +01:00
|
|
|
} else {
|
|
|
|
throw err
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2018-12-31 14:44:27 +01:00
|
|
|
private isServeableUrl(path: string): boolean {
|
2017-06-01 02:16:32 +02:00
|
|
|
const resolved = resolve(path)
|
|
|
|
if (
|
2018-06-04 15:45:39 +02:00
|
|
|
resolved.indexOf(join(this.distDir) + sep) !== 0 &&
|
2017-06-01 02:16:32 +02:00
|
|
|
resolved.indexOf(join(this.dir, 'static') + sep) !== 0
|
|
|
|
) {
|
|
|
|
// Seems like the user is trying to traverse the filesystem.
|
|
|
|
return false
|
|
|
|
}
|
|
|
|
|
|
|
|
return true
|
|
|
|
}
|
|
|
|
|
2018-12-31 14:44:27 +01:00
|
|
|
private readBuildId(): string {
|
2018-12-06 16:46:53 +01:00
|
|
|
const buildIdFile = join(this.distDir, BUILD_ID_FILE)
|
|
|
|
try {
|
|
|
|
return fs.readFileSync(buildIdFile, 'utf8').trim()
|
|
|
|
} catch (err) {
|
|
|
|
if (!fs.existsSync(buildIdFile)) {
|
2019-03-01 20:51:13 +01:00
|
|
|
throw new Error(
|
|
|
|
`Could not find a valid build in the '${
|
|
|
|
this.distDir
|
|
|
|
}' directory! Try building your app with 'next build' before starting the server.`,
|
|
|
|
)
|
2018-12-06 16:46:53 +01:00
|
|
|
}
|
|
|
|
|
|
|
|
throw err
|
2018-07-25 13:45:42 +02:00
|
|
|
}
|
2017-01-11 21:16:18 +01:00
|
|
|
}
|
2017-02-21 00:48:17 +01:00
|
|
|
}
|