2373320fc8
This solves the main use case from Issue #19914. Previously, we would set the `Cache-Control` header to a constant and rely on the server cache. This would mean the browser would always request the image and the server could response with 304 Not Modified to omit the response body. This PR changes the behavior such that the `max-age` will propagate from the upstream server to the Next.js Image Optimization Server and allow browser caching. ("upstream" meaning external server or just an internal route to an image) This PR does not change the `max-age` for static imports which will remain `public, max-age=315360000, immutable`. #### Pros: - Fewer HTTP requests after initial browser visit - User configurable `max-age` via the upstream image `Cache-Control` header #### Cons: - ~~Might be annoying for `next dev` when modifying a source image~~ (solved: use `max-age=0` for dev) - Might cause browser to cache longer than expected (up to 2x longer than the server cache if requested in the last second before expiration) ## Bug - [x] Related issues linked using `fixes #number`
2304 lines
68 KiB
TypeScript
2304 lines
68 KiB
TypeScript
import compression from 'next/dist/compiled/compression'
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import fs from 'fs'
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import chalk from 'chalk'
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import { IncomingMessage, ServerResponse } from 'http'
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import Proxy from 'next/dist/compiled/http-proxy'
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import { join, relative, resolve, sep } from 'path'
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import {
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parse as parseQs,
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stringify as stringifyQs,
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ParsedUrlQuery,
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} from 'querystring'
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import { format as formatUrl, parse as parseUrl, UrlWithParsedQuery } from 'url'
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import { PrerenderManifest } from '../build'
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import {
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getRedirectStatus,
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Header,
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Redirect,
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Rewrite,
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RouteType,
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CustomRoutes,
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} from '../lib/load-custom-routes'
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import { withCoalescedInvoke } from '../lib/coalesced-function'
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import {
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BUILD_ID_FILE,
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CLIENT_PUBLIC_FILES_PATH,
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CLIENT_STATIC_FILES_PATH,
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CLIENT_STATIC_FILES_RUNTIME,
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PAGES_MANIFEST,
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PERMANENT_REDIRECT_STATUS,
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PRERENDER_MANIFEST,
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ROUTES_MANIFEST,
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SERVERLESS_DIRECTORY,
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SERVER_DIRECTORY,
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STATIC_STATUS_PAGES,
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TEMPORARY_REDIRECT_STATUS,
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} from '../shared/lib/constants'
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import {
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getRouteMatcher,
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getRouteRegex,
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getSortedRoutes,
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isDynamicRoute,
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} from '../shared/lib/router/utils'
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import * as envConfig from '../shared/lib/runtime-config'
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import { isResSent, NextApiRequest, NextApiResponse } from '../shared/lib/utils'
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import {
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apiResolver,
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setLazyProp,
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getCookieParser,
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tryGetPreviewData,
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__ApiPreviewProps,
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} from './api-utils'
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import { DomainLocales, isTargetLikeServerless, NextConfig } from './config'
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import pathMatch from '../shared/lib/router/utils/path-match'
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import { recursiveReadDirSync } from './lib/recursive-readdir-sync'
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import { loadComponents, LoadComponentsReturnType } from './load-components'
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import { normalizePagePath } from './normalize-page-path'
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import { RenderOpts, RenderOptsPartial, renderToHTML } from './render'
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import { getPagePath, requireFontManifest } from './require'
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import Router, {
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DynamicRoutes,
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PageChecker,
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Params,
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route,
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Route,
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} from './router'
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import prepareDestination, {
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compileNonPath,
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} from '../shared/lib/router/utils/prepare-destination'
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import { sendPayload, setRevalidateHeaders } from './send-payload'
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import { serveStatic } from './serve-static'
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import { IncrementalCache } from './incremental-cache'
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import { execOnce } from '../shared/lib/utils'
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import { isBlockedPage } from './utils'
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import { loadEnvConfig } from '@next/env'
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import './node-polyfill-fetch'
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import { PagesManifest } from '../build/webpack/plugins/pages-manifest-plugin'
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import { removePathTrailingSlash } from '../client/normalize-trailing-slash'
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import getRouteFromAssetPath from '../shared/lib/router/utils/get-route-from-asset-path'
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import { FontManifest } from './font-utils'
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import { denormalizePagePath } from './denormalize-page-path'
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import accept from '@hapi/accept'
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import { normalizeLocalePath } from '../shared/lib/i18n/normalize-locale-path'
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import { detectLocaleCookie } from '../shared/lib/i18n/detect-locale-cookie'
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import * as Log from '../build/output/log'
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import { imageOptimizer } from './image-optimizer'
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import { detectDomainLocale } from '../shared/lib/i18n/detect-domain-locale'
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import cookie from 'next/dist/compiled/cookie'
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import escapePathDelimiters from '../shared/lib/router/utils/escape-path-delimiters'
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import { getUtils } from '../build/webpack/loaders/next-serverless-loader/utils'
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import { PreviewData } from 'next/types'
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const getCustomRouteMatcher = pathMatch(true)
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type Middleware = (
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req: IncomingMessage,
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res: ServerResponse,
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next: (err?: Error) => void
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) => void
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export type FindComponentsResult = {
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components: LoadComponentsReturnType
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query: ParsedUrlQuery
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}
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type DynamicRouteItem = {
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page: string
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match: ReturnType<typeof getRouteMatcher>
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}
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export type ServerConstructor = {
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/**
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|
* Where the Next project is located - @default '.'
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*/
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dir?: string
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/**
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|
* Hide error messages containing server information - @default false
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*/
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quiet?: boolean
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/**
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* Object what you would use in next.config.js - @default {}
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*/
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conf?: NextConfig | null
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dev?: boolean
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customServer?: boolean
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}
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export default class Server {
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protected dir: string
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protected quiet: boolean
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protected nextConfig: NextConfig
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protected distDir: string
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protected pagesDir?: string
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protected publicDir: string
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protected hasStaticDir: boolean
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protected serverBuildDir: string
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|
protected pagesManifest?: PagesManifest
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|
protected buildId: string
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|
protected minimalMode: boolean
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|
protected renderOpts: {
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|
poweredByHeader: 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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assetPrefix?: string
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|
canonicalBase: string
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|
dev?: boolean
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previewProps: __ApiPreviewProps
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|
customServer?: boolean
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ampOptimizerConfig?: { [key: string]: any }
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basePath: string
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optimizeFonts: boolean
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images: string
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fontManifest: FontManifest
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optimizeImages: boolean
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disableOptimizedLoading?: boolean
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|
optimizeCss: any
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|
locale?: string
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|
locales?: string[]
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defaultLocale?: string
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domainLocales?: DomainLocales
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distDir: string
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}
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private compression?: Middleware
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private incrementalCache: IncrementalCache
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protected router: Router
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protected dynamicRoutes?: DynamicRoutes
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protected customRoutes: CustomRoutes
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public constructor({
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dir = '.',
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quiet = false,
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conf,
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dev = false,
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minimalMode = false,
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customServer = true,
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}: ServerConstructor & { conf: NextConfig; minimalMode?: boolean }) {
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this.dir = resolve(dir)
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this.quiet = quiet
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loadEnvConfig(this.dir, dev, Log)
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this.nextConfig = conf
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this.distDir = join(this.dir, this.nextConfig.distDir)
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this.publicDir = join(this.dir, CLIENT_PUBLIC_FILES_PATH)
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this.hasStaticDir = !minimalMode && fs.existsSync(join(this.dir, 'static'))
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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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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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compress,
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} = this.nextConfig
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this.buildId = this.readBuildId()
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this.minimalMode = minimalMode
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this.renderOpts = {
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poweredByHeader: this.nextConfig.poweredByHeader,
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canonicalBase: this.nextConfig.amp.canonicalBase,
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buildId: this.buildId,
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generateEtags,
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previewProps: this.getPreviewProps(),
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customServer: customServer === true ? true : undefined,
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ampOptimizerConfig: this.nextConfig.experimental.amp?.optimizer,
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basePath: this.nextConfig.basePath,
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images: JSON.stringify(this.nextConfig.images),
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optimizeFonts: !!this.nextConfig.optimizeFonts && !dev,
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fontManifest:
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this.nextConfig.optimizeFonts && !dev
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? requireFontManifest(this.distDir, this._isLikeServerless)
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: null,
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optimizeImages: !!this.nextConfig.experimental.optimizeImages,
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optimizeCss: this.nextConfig.experimental.optimizeCss,
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disableOptimizedLoading: this.nextConfig.experimental
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.disableOptimizedLoading,
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domainLocales: this.nextConfig.i18n?.domains,
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distDir: this.distDir,
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}
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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 (Object.keys(publicRuntimeConfig).length > 0) {
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|
this.renderOpts.runtimeConfig = publicRuntimeConfig
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|
}
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|
if (compress && this.nextConfig.target === 'server') {
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|
this.compression = compression() as Middleware
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|
}
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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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publicRuntimeConfig,
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})
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|
this.serverBuildDir = join(
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|
this.distDir,
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|
this._isLikeServerless ? SERVERLESS_DIRECTORY : SERVER_DIRECTORY
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|
)
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|
const pagesManifestPath = join(this.serverBuildDir, PAGES_MANIFEST)
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|
if (!dev) {
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|
this.pagesManifest = require(pagesManifestPath)
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|
}
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|
this.customRoutes = this.getCustomRoutes()
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|
this.router = new Router(this.generateRoutes())
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|
this.setAssetPrefix(assetPrefix)
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|
|
|
this.incrementalCache = new IncrementalCache({
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|
dev,
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|
distDir: this.distDir,
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|
pagesDir: join(
|
|
this.distDir,
|
|
this._isLikeServerless ? SERVERLESS_DIRECTORY : SERVER_DIRECTORY,
|
|
'pages'
|
|
),
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|
locales: this.nextConfig.i18n?.locales,
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|
flushToDisk: !minimalMode && this.nextConfig.experimental.sprFlushToDisk,
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|
})
|
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|
|
/**
|
|
* This sets environment variable to be used at the time of SSR by head.tsx.
|
|
* Using this from process.env allows targeting both serverless and SSR by calling
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|
* `process.env.__NEXT_OPTIMIZE_IMAGES`.
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|
* TODO(atcastle@): Remove this when experimental.optimizeImages are being cleaned up.
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|
*/
|
|
if (this.renderOpts.optimizeFonts) {
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|
process.env.__NEXT_OPTIMIZE_FONTS = JSON.stringify(true)
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|
}
|
|
if (this.renderOpts.optimizeImages) {
|
|
process.env.__NEXT_OPTIMIZE_IMAGES = JSON.stringify(true)
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|
}
|
|
if (this.renderOpts.optimizeCss) {
|
|
process.env.__NEXT_OPTIMIZE_CSS = JSON.stringify(true)
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|
}
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|
}
|
|
|
|
public logError(err: Error): void {
|
|
if (this.quiet) return
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|
console.error(err)
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|
}
|
|
|
|
private async 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> {
|
|
setLazyProp({ req: req as any }, 'cookies', getCookieParser(req))
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|
|
|
// Parse url if parsedUrl not provided
|
|
if (!parsedUrl || typeof parsedUrl !== 'object') {
|
|
const url: any = req.url
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|
parsedUrl = parseUrl(url, true)
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|
}
|
|
const { basePath, i18n } = this.nextConfig
|
|
|
|
// Parse the querystring ourselves if the user doesn't handle querystring parsing
|
|
if (typeof parsedUrl.query === 'string') {
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|
parsedUrl.query = parseQs(parsedUrl.query)
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|
}
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|
;(req as any).__NEXT_INIT_QUERY = Object.assign({}, parsedUrl.query)
|
|
|
|
if (basePath && req.url?.startsWith(basePath)) {
|
|
// store original URL to allow checking if basePath was
|
|
// provided or not
|
|
;(req as any)._nextHadBasePath = true
|
|
req.url = req.url!.replace(basePath, '') || '/'
|
|
}
|
|
|
|
if (
|
|
this.minimalMode &&
|
|
req.headers['x-matched-path'] &&
|
|
typeof req.headers['x-matched-path'] === 'string'
|
|
) {
|
|
const reqUrlIsDataUrl = req.url?.includes('/_next/data')
|
|
const matchedPathIsDataUrl = req.headers['x-matched-path']?.includes(
|
|
'/_next/data'
|
|
)
|
|
const isDataUrl = reqUrlIsDataUrl || matchedPathIsDataUrl
|
|
|
|
let parsedPath = parseUrl(
|
|
isDataUrl ? req.url! : (req.headers['x-matched-path'] as string),
|
|
true
|
|
)
|
|
const { pathname, query } = parsedPath
|
|
let matchedPathname = pathname as string
|
|
|
|
let matchedPathnameNoExt = isDataUrl
|
|
? matchedPathname.replace(/\.json$/, '')
|
|
: matchedPathname
|
|
|
|
if (i18n) {
|
|
const localePathResult = normalizeLocalePath(
|
|
matchedPathname || '/',
|
|
i18n.locales
|
|
)
|
|
|
|
if (localePathResult.detectedLocale) {
|
|
parsedUrl.query.__nextLocale = localePathResult.detectedLocale
|
|
}
|
|
}
|
|
|
|
if (isDataUrl) {
|
|
matchedPathname = denormalizePagePath(matchedPathname)
|
|
matchedPathnameNoExt = denormalizePagePath(matchedPathnameNoExt)
|
|
}
|
|
|
|
const pageIsDynamic = isDynamicRoute(matchedPathnameNoExt)
|
|
const combinedRewrites: Rewrite[] = []
|
|
|
|
combinedRewrites.push(...this.customRoutes.rewrites.beforeFiles)
|
|
combinedRewrites.push(...this.customRoutes.rewrites.afterFiles)
|
|
combinedRewrites.push(...this.customRoutes.rewrites.fallback)
|
|
|
|
const utils = getUtils({
|
|
pageIsDynamic,
|
|
page: matchedPathnameNoExt,
|
|
i18n: this.nextConfig.i18n,
|
|
basePath: this.nextConfig.basePath,
|
|
rewrites: combinedRewrites,
|
|
})
|
|
|
|
utils.handleRewrites(req, parsedUrl)
|
|
|
|
// interpolate dynamic params and normalize URL if needed
|
|
if (pageIsDynamic) {
|
|
let params: ParsedUrlQuery | false = {}
|
|
|
|
Object.assign(parsedUrl.query, query)
|
|
const paramsResult = utils.normalizeDynamicRouteParams(parsedUrl.query)
|
|
|
|
if (paramsResult.hasValidParams) {
|
|
params = paramsResult.params
|
|
} else if (req.headers['x-now-route-matches']) {
|
|
const opts: Record<string, string> = {}
|
|
params = utils.getParamsFromRouteMatches(
|
|
req,
|
|
opts,
|
|
(parsedUrl.query.__nextLocale as string | undefined) || ''
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|
)
|
|
|
|
if (opts.locale) {
|
|
parsedUrl.query.__nextLocale = opts.locale
|
|
}
|
|
} else {
|
|
params = utils.dynamicRouteMatcher!(matchedPathnameNoExt)
|
|
}
|
|
|
|
if (params) {
|
|
params = utils.normalizeDynamicRouteParams(params).params
|
|
|
|
matchedPathname = utils.interpolateDynamicPath(
|
|
matchedPathname,
|
|
params
|
|
)
|
|
req.url = utils.interpolateDynamicPath(req.url!, params)
|
|
}
|
|
|
|
if (reqUrlIsDataUrl && matchedPathIsDataUrl) {
|
|
req.url = formatUrl({
|
|
...parsedPath,
|
|
pathname: matchedPathname,
|
|
})
|
|
}
|
|
|
|
Object.assign(parsedUrl.query, params)
|
|
utils.normalizeVercelUrl(req, true)
|
|
}
|
|
|
|
parsedUrl.pathname = `${basePath || ''}${
|
|
matchedPathname === '/' && basePath ? '' : matchedPathname
|
|
}`
|
|
}
|
|
|
|
if (i18n) {
|
|
// get pathname from URL with basePath stripped for locale detection
|
|
let { pathname, ...parsed } = parseUrl(req.url || '/')
|
|
pathname = pathname || '/'
|
|
|
|
let defaultLocale = i18n.defaultLocale
|
|
let detectedLocale = detectLocaleCookie(req, i18n.locales)
|
|
let acceptPreferredLocale
|
|
try {
|
|
acceptPreferredLocale =
|
|
i18n.localeDetection !== false
|
|
? accept.language(req.headers['accept-language'], i18n.locales)
|
|
: detectedLocale
|
|
} catch (_) {
|
|
acceptPreferredLocale = detectedLocale
|
|
}
|
|
const { host } = req?.headers || {}
|
|
// remove port from host if present
|
|
const hostname = host?.split(':')[0].toLowerCase()
|
|
|
|
const detectedDomain = detectDomainLocale(i18n.domains, hostname)
|
|
if (detectedDomain) {
|
|
defaultLocale = detectedDomain.defaultLocale
|
|
detectedLocale = defaultLocale
|
|
;(req as any).__nextIsLocaleDomain = true
|
|
}
|
|
|
|
// if not domain specific locale use accept-language preferred
|
|
detectedLocale = detectedLocale || acceptPreferredLocale
|
|
|
|
let localeDomainRedirect: string | undefined
|
|
;(req as any).__nextHadTrailingSlash = pathname!.endsWith('/')
|
|
|
|
if (pathname === '/') {
|
|
;(req as any).__nextHadTrailingSlash = this.nextConfig.trailingSlash
|
|
}
|
|
const localePathResult = normalizeLocalePath(pathname!, i18n.locales)
|
|
|
|
if (localePathResult.detectedLocale) {
|
|
detectedLocale = localePathResult.detectedLocale
|
|
req.url = formatUrl({
|
|
...parsed,
|
|
pathname: localePathResult.pathname,
|
|
})
|
|
;(req as any).__nextStrippedLocale = true
|
|
|
|
if (
|
|
localePathResult.pathname === '/api' ||
|
|
localePathResult.pathname.startsWith('/api/')
|
|
) {
|
|
return this.render404(req, res, parsedUrl)
|
|
}
|
|
}
|
|
|
|
// If a detected locale is a domain specific locale and we aren't already
|
|
// on that domain and path prefix redirect to it to prevent duplicate
|
|
// content from multiple domains
|
|
if (detectedDomain && pathname === '/') {
|
|
const localeToCheck = acceptPreferredLocale
|
|
// const localeToCheck = localePathResult.detectedLocale
|
|
// ? detectedLocale
|
|
// : acceptPreferredLocale
|
|
|
|
const matchedDomain = detectDomainLocale(
|
|
i18n.domains,
|
|
undefined,
|
|
localeToCheck
|
|
)
|
|
|
|
if (
|
|
matchedDomain &&
|
|
(matchedDomain.domain !== detectedDomain.domain ||
|
|
localeToCheck !== matchedDomain.defaultLocale)
|
|
) {
|
|
localeDomainRedirect = `http${matchedDomain.http ? '' : 's'}://${
|
|
matchedDomain.domain
|
|
}/${
|
|
localeToCheck === matchedDomain.defaultLocale ? '' : localeToCheck
|
|
}`
|
|
}
|
|
}
|
|
|
|
const denormalizedPagePath = denormalizePagePath(pathname || '/')
|
|
const detectedDefaultLocale =
|
|
!detectedLocale ||
|
|
detectedLocale.toLowerCase() === defaultLocale.toLowerCase()
|
|
const shouldStripDefaultLocale = false
|
|
// detectedDefaultLocale &&
|
|
// denormalizedPagePath.toLowerCase() ===
|
|
// `/${i18n.defaultLocale.toLowerCase()}`
|
|
|
|
const shouldAddLocalePrefix =
|
|
!detectedDefaultLocale && denormalizedPagePath === '/'
|
|
|
|
detectedLocale = detectedLocale || i18n.defaultLocale
|
|
|
|
if (
|
|
i18n.localeDetection !== false &&
|
|
(localeDomainRedirect ||
|
|
shouldAddLocalePrefix ||
|
|
shouldStripDefaultLocale)
|
|
) {
|
|
// set the NEXT_LOCALE cookie when a user visits the default locale
|
|
// with the locale prefix so that they aren't redirected back to
|
|
// their accept-language preferred locale
|
|
if (
|
|
shouldStripDefaultLocale &&
|
|
acceptPreferredLocale !== defaultLocale
|
|
) {
|
|
const previous = res.getHeader('set-cookie')
|
|
|
|
res.setHeader('set-cookie', [
|
|
...(typeof previous === 'string'
|
|
? [previous]
|
|
: Array.isArray(previous)
|
|
? previous
|
|
: []),
|
|
cookie.serialize('NEXT_LOCALE', defaultLocale, {
|
|
httpOnly: true,
|
|
path: '/',
|
|
}),
|
|
])
|
|
}
|
|
|
|
res.setHeader(
|
|
'Location',
|
|
localeDomainRedirect
|
|
? localeDomainRedirect
|
|
: formatUrl({
|
|
// make sure to include any query values when redirecting
|
|
...parsed,
|
|
pathname: shouldStripDefaultLocale
|
|
? basePath || `/`
|
|
: `${basePath || ''}/${detectedLocale}`,
|
|
})
|
|
)
|
|
res.statusCode = TEMPORARY_REDIRECT_STATUS
|
|
res.end()
|
|
return
|
|
}
|
|
|
|
parsedUrl.query.__nextDefaultLocale =
|
|
detectedDomain?.defaultLocale || i18n.defaultLocale
|
|
|
|
if (!this.minimalMode || !parsedUrl.query.__nextLocale) {
|
|
parsedUrl.query.__nextLocale =
|
|
localePathResult.detectedLocale ||
|
|
detectedDomain?.defaultLocale ||
|
|
defaultLocale
|
|
}
|
|
}
|
|
|
|
res.statusCode = 200
|
|
try {
|
|
return await this.run(req, res, parsedUrl)
|
|
} catch (err) {
|
|
if (this.minimalMode) {
|
|
throw err
|
|
}
|
|
this.logError(err)
|
|
res.statusCode = 500
|
|
res.end('Internal Server Error')
|
|
}
|
|
}
|
|
|
|
public getRequestHandler() {
|
|
return this.handleRequest.bind(this)
|
|
}
|
|
|
|
public setAssetPrefix(prefix?: string): void {
|
|
this.renderOpts.assetPrefix = prefix ? prefix.replace(/\/$/, '') : ''
|
|
}
|
|
|
|
// Backwards compatibility
|
|
public async prepare(): Promise<void> {}
|
|
|
|
// Backwards compatibility
|
|
protected async close(): Promise<void> {}
|
|
|
|
protected setImmutableAssetCacheControl(res: ServerResponse): void {
|
|
res.setHeader('Cache-Control', 'public, max-age=31536000, immutable')
|
|
}
|
|
|
|
protected getCustomRoutes(): CustomRoutes {
|
|
const customRoutes = require(join(this.distDir, ROUTES_MANIFEST))
|
|
let rewrites: CustomRoutes['rewrites']
|
|
|
|
// rewrites can be stored as an array when an array is
|
|
// returned in next.config.js so massage them into
|
|
// the expected object format
|
|
if (Array.isArray(customRoutes.rewrites)) {
|
|
rewrites = {
|
|
beforeFiles: [],
|
|
afterFiles: customRoutes.rewrites,
|
|
fallback: [],
|
|
}
|
|
} else {
|
|
rewrites = customRoutes.rewrites
|
|
}
|
|
return Object.assign(customRoutes, { rewrites })
|
|
}
|
|
|
|
private _cachedPreviewManifest: PrerenderManifest | undefined
|
|
protected getPrerenderManifest(): PrerenderManifest {
|
|
if (this._cachedPreviewManifest) {
|
|
return this._cachedPreviewManifest
|
|
}
|
|
const manifest = require(join(this.distDir, PRERENDER_MANIFEST))
|
|
return (this._cachedPreviewManifest = manifest)
|
|
}
|
|
|
|
protected getPreviewProps(): __ApiPreviewProps {
|
|
return this.getPrerenderManifest().preview
|
|
}
|
|
|
|
protected generateRoutes(): {
|
|
basePath: string
|
|
headers: Route[]
|
|
rewrites: {
|
|
beforeFiles: Route[]
|
|
afterFiles: Route[]
|
|
fallback: Route[]
|
|
}
|
|
fsRoutes: Route[]
|
|
redirects: Route[]
|
|
catchAllRoute: Route
|
|
pageChecker: PageChecker
|
|
useFileSystemPublicRoutes: boolean
|
|
dynamicRoutes: DynamicRoutes | undefined
|
|
locales: string[]
|
|
} {
|
|
const server: Server = this
|
|
const publicRoutes = fs.existsSync(this.publicDir)
|
|
? this.generatePublicRoutes()
|
|
: []
|
|
|
|
const staticFilesRoute = this.hasStaticDir
|
|
? [
|
|
{
|
|
// It's very important to keep this route's param optional.
|
|
// (but it should support as many params as needed, separated by '/')
|
|
// Otherwise this will lead to a pretty simple DOS attack.
|
|
// See more: https://github.com/vercel/next.js/issues/2617
|
|
match: route('/static/:path*'),
|
|
name: 'static catchall',
|
|
fn: async (req, res, params, parsedUrl) => {
|
|
const p = join(this.dir, 'static', ...params.path)
|
|
await this.serveStatic(req, res, p, parsedUrl)
|
|
return {
|
|
finished: true,
|
|
}
|
|
},
|
|
} as Route,
|
|
]
|
|
: []
|
|
|
|
const fsRoutes: Route[] = [
|
|
{
|
|
match: route('/_next/static/:path*'),
|
|
type: 'route',
|
|
name: '_next/static catchall',
|
|
fn: async (req, res, params, parsedUrl) => {
|
|
// make sure to 404 for /_next/static itself
|
|
if (!params.path) {
|
|
await this.render404(req, res, parsedUrl)
|
|
return {
|
|
finished: true,
|
|
}
|
|
}
|
|
|
|
if (
|
|
params.path[0] === CLIENT_STATIC_FILES_RUNTIME ||
|
|
params.path[0] === 'chunks' ||
|
|
params.path[0] === 'css' ||
|
|
params.path[0] === 'media' ||
|
|
params.path[0] === this.buildId ||
|
|
params.path[0] === 'pages' ||
|
|
params.path[1] === 'pages'
|
|
) {
|
|
this.setImmutableAssetCacheControl(res)
|
|
}
|
|
const p = join(
|
|
this.distDir,
|
|
CLIENT_STATIC_FILES_PATH,
|
|
...(params.path || [])
|
|
)
|
|
await this.serveStatic(req, res, p, parsedUrl)
|
|
return {
|
|
finished: true,
|
|
}
|
|
},
|
|
},
|
|
{
|
|
match: route('/_next/data/:path*'),
|
|
type: 'route',
|
|
name: '_next/data catchall',
|
|
fn: async (req, res, params, _parsedUrl) => {
|
|
// Make sure to 404 for /_next/data/ itself and
|
|
// we also want to 404 if the buildId isn't correct
|
|
if (!params.path || params.path[0] !== this.buildId) {
|
|
await this.render404(req, res, _parsedUrl)
|
|
return {
|
|
finished: true,
|
|
}
|
|
}
|
|
// remove buildId from URL
|
|
params.path.shift()
|
|
|
|
// show 404 if it doesn't end with .json
|
|
if (!params.path[params.path.length - 1].endsWith('.json')) {
|
|
await this.render404(req, res, _parsedUrl)
|
|
return {
|
|
finished: true,
|
|
}
|
|
}
|
|
|
|
// re-create page's pathname
|
|
let pathname = `/${params.path.join('/')}`
|
|
pathname = getRouteFromAssetPath(pathname, '.json')
|
|
|
|
const { i18n } = this.nextConfig
|
|
|
|
if (i18n) {
|
|
const { host } = req?.headers || {}
|
|
// remove port from host and remove port if present
|
|
const hostname = host?.split(':')[0].toLowerCase()
|
|
const localePathResult = normalizeLocalePath(pathname, i18n.locales)
|
|
const { defaultLocale } =
|
|
detectDomainLocale(i18n.domains, hostname) || {}
|
|
|
|
let detectedLocale = ''
|
|
|
|
if (localePathResult.detectedLocale) {
|
|
pathname = localePathResult.pathname
|
|
detectedLocale = localePathResult.detectedLocale
|
|
}
|
|
|
|
_parsedUrl.query.__nextLocale = detectedLocale!
|
|
_parsedUrl.query.__nextDefaultLocale =
|
|
defaultLocale || i18n.defaultLocale
|
|
|
|
if (!detectedLocale) {
|
|
_parsedUrl.query.__nextLocale =
|
|
_parsedUrl.query.__nextDefaultLocale
|
|
await this.render404(req, res, _parsedUrl)
|
|
return { finished: true }
|
|
}
|
|
}
|
|
|
|
const parsedUrl = parseUrl(pathname, true)
|
|
|
|
await this.render(
|
|
req,
|
|
res,
|
|
pathname,
|
|
{ ..._parsedUrl.query, _nextDataReq: '1' },
|
|
parsedUrl
|
|
)
|
|
return {
|
|
finished: true,
|
|
}
|
|
},
|
|
},
|
|
{
|
|
match: route('/_next/image'),
|
|
type: 'route',
|
|
name: '_next/image catchall',
|
|
fn: (req, res, _params, parsedUrl) =>
|
|
imageOptimizer(
|
|
server,
|
|
req,
|
|
res,
|
|
parsedUrl,
|
|
server.nextConfig,
|
|
server.distDir,
|
|
this.renderOpts.dev
|
|
),
|
|
},
|
|
{
|
|
match: route('/_next/:path*'),
|
|
type: 'route',
|
|
name: '_next catchall',
|
|
// This path is needed because `render()` does a check for `/_next` and the calls the routing again
|
|
fn: async (req, res, _params, parsedUrl) => {
|
|
await this.render404(req, res, parsedUrl)
|
|
return {
|
|
finished: true,
|
|
}
|
|
},
|
|
},
|
|
...publicRoutes,
|
|
...staticFilesRoute,
|
|
]
|
|
|
|
const getCustomRoute = (
|
|
r: Rewrite | Redirect | Header,
|
|
type: RouteType
|
|
) => {
|
|
const match = getCustomRouteMatcher(r.source)
|
|
|
|
return {
|
|
...r,
|
|
type,
|
|
match,
|
|
name: type,
|
|
fn: async (_req, _res, _params, _parsedUrl) => ({ finished: false }),
|
|
} as Route & Rewrite & Header
|
|
}
|
|
|
|
// Headers come very first
|
|
const headers = this.minimalMode
|
|
? []
|
|
: this.customRoutes.headers.map((r) => {
|
|
const headerRoute = getCustomRoute(r, 'header')
|
|
return {
|
|
match: headerRoute.match,
|
|
has: headerRoute.has,
|
|
type: headerRoute.type,
|
|
name: `${headerRoute.type} ${headerRoute.source} header route`,
|
|
fn: async (_req, res, params, _parsedUrl) => {
|
|
const hasParams = Object.keys(params).length > 0
|
|
|
|
for (const header of (headerRoute as Header).headers) {
|
|
let { key, value } = header
|
|
if (hasParams) {
|
|
key = compileNonPath(key, params)
|
|
value = compileNonPath(value, params)
|
|
}
|
|
res.setHeader(key, value)
|
|
}
|
|
return { finished: false }
|
|
},
|
|
} as Route
|
|
})
|
|
|
|
// since initial query values are decoded by querystring.parse
|
|
// we need to re-encode them here but still allow passing through
|
|
// values from rewrites/redirects
|
|
const stringifyQuery = (req: IncomingMessage, query: ParsedUrlQuery) => {
|
|
const initialQueryValues = Object.values((req as any).__NEXT_INIT_QUERY)
|
|
|
|
return stringifyQs(query, undefined, undefined, {
|
|
encodeURIComponent(value) {
|
|
if (initialQueryValues.some((val) => val === value)) {
|
|
return encodeURIComponent(value)
|
|
}
|
|
return value
|
|
},
|
|
})
|
|
}
|
|
|
|
const redirects = this.minimalMode
|
|
? []
|
|
: this.customRoutes.redirects.map((redirect) => {
|
|
const redirectRoute = getCustomRoute(redirect, 'redirect')
|
|
return {
|
|
internal: redirectRoute.internal,
|
|
type: redirectRoute.type,
|
|
match: redirectRoute.match,
|
|
has: redirectRoute.has,
|
|
statusCode: redirectRoute.statusCode,
|
|
name: `Redirect route ${redirectRoute.source}`,
|
|
fn: async (req, res, params, parsedUrl) => {
|
|
const { parsedDestination } = prepareDestination(
|
|
redirectRoute.destination,
|
|
params,
|
|
parsedUrl.query,
|
|
false
|
|
)
|
|
|
|
const { query } = parsedDestination
|
|
delete (parsedDestination as any).query
|
|
|
|
parsedDestination.search = stringifyQuery(req, query)
|
|
|
|
const updatedDestination = formatUrl(parsedDestination)
|
|
|
|
res.setHeader('Location', updatedDestination)
|
|
res.statusCode = getRedirectStatus(redirectRoute as Redirect)
|
|
|
|
// Since IE11 doesn't support the 308 header add backwards
|
|
// compatibility using refresh header
|
|
if (res.statusCode === 308) {
|
|
res.setHeader('Refresh', `0;url=${updatedDestination}`)
|
|
}
|
|
|
|
res.end()
|
|
return {
|
|
finished: true,
|
|
}
|
|
},
|
|
} as Route
|
|
})
|
|
|
|
const buildRewrite = (rewrite: Rewrite, check = true) => {
|
|
const rewriteRoute = getCustomRoute(rewrite, 'rewrite')
|
|
return {
|
|
...rewriteRoute,
|
|
check,
|
|
type: rewriteRoute.type,
|
|
name: `Rewrite route ${rewriteRoute.source}`,
|
|
match: rewriteRoute.match,
|
|
fn: async (req, res, params, parsedUrl) => {
|
|
const { newUrl, parsedDestination } = prepareDestination(
|
|
rewriteRoute.destination,
|
|
params,
|
|
parsedUrl.query,
|
|
true
|
|
)
|
|
|
|
// external rewrite, proxy it
|
|
if (parsedDestination.protocol) {
|
|
const { query } = parsedDestination
|
|
delete (parsedDestination as any).query
|
|
parsedDestination.search = stringifyQuery(req, query)
|
|
|
|
const target = formatUrl(parsedDestination)
|
|
const proxy = new Proxy({
|
|
target,
|
|
changeOrigin: true,
|
|
ignorePath: true,
|
|
proxyTimeout: 30_000, // limit proxying to 30 seconds
|
|
})
|
|
|
|
await new Promise((proxyResolve, proxyReject) => {
|
|
let finished = false
|
|
|
|
proxy.on('proxyReq', (proxyReq) => {
|
|
proxyReq.on('close', () => {
|
|
if (!finished) {
|
|
finished = true
|
|
proxyResolve(true)
|
|
}
|
|
})
|
|
})
|
|
proxy.on('error', (err) => {
|
|
if (!finished) {
|
|
finished = true
|
|
proxyReject(err)
|
|
}
|
|
})
|
|
proxy.web(req, res)
|
|
})
|
|
|
|
return {
|
|
finished: true,
|
|
}
|
|
}
|
|
;(req as any)._nextRewroteUrl = newUrl
|
|
;(req as any)._nextDidRewrite =
|
|
(req as any)._nextRewroteUrl !== req.url
|
|
|
|
return {
|
|
finished: false,
|
|
pathname: newUrl,
|
|
query: parsedDestination.query,
|
|
}
|
|
},
|
|
} as Route
|
|
}
|
|
|
|
let beforeFiles: Route[] = []
|
|
let afterFiles: Route[] = []
|
|
let fallback: Route[] = []
|
|
|
|
if (!this.minimalMode) {
|
|
if (Array.isArray(this.customRoutes.rewrites)) {
|
|
afterFiles = this.customRoutes.rewrites.map((r) => buildRewrite(r))
|
|
} else {
|
|
beforeFiles = this.customRoutes.rewrites.beforeFiles.map((r) =>
|
|
buildRewrite(r, false)
|
|
)
|
|
afterFiles = this.customRoutes.rewrites.afterFiles.map((r) =>
|
|
buildRewrite(r)
|
|
)
|
|
fallback = this.customRoutes.rewrites.fallback.map((r) =>
|
|
buildRewrite(r)
|
|
)
|
|
}
|
|
}
|
|
|
|
const catchAllRoute: Route = {
|
|
match: route('/:path*'),
|
|
type: 'route',
|
|
name: 'Catchall render',
|
|
fn: async (req, res, _params, parsedUrl) => {
|
|
let { pathname, query } = parsedUrl
|
|
if (!pathname) {
|
|
throw new Error('pathname is undefined')
|
|
}
|
|
|
|
// next.js core assumes page path without trailing slash
|
|
pathname = removePathTrailingSlash(pathname)
|
|
|
|
if (this.nextConfig.i18n) {
|
|
const localePathResult = normalizeLocalePath(
|
|
pathname,
|
|
this.nextConfig.i18n?.locales
|
|
)
|
|
|
|
if (localePathResult.detectedLocale) {
|
|
pathname = localePathResult.pathname
|
|
parsedUrl.query.__nextLocale = localePathResult.detectedLocale
|
|
}
|
|
}
|
|
const bubbleNoFallback = !!query._nextBubbleNoFallback
|
|
|
|
if (pathname === '/api' || pathname.startsWith('/api/')) {
|
|
delete query._nextBubbleNoFallback
|
|
|
|
const handled = await this.handleApiRequest(
|
|
req as NextApiRequest,
|
|
res as NextApiResponse,
|
|
pathname,
|
|
query
|
|
)
|
|
if (handled) {
|
|
return { finished: true }
|
|
}
|
|
}
|
|
|
|
try {
|
|
await this.render(req, res, pathname, query, parsedUrl)
|
|
|
|
return {
|
|
finished: true,
|
|
}
|
|
} catch (err) {
|
|
if (err instanceof NoFallbackError && bubbleNoFallback) {
|
|
return {
|
|
finished: false,
|
|
}
|
|
}
|
|
throw err
|
|
}
|
|
},
|
|
}
|
|
|
|
const { useFileSystemPublicRoutes } = this.nextConfig
|
|
|
|
if (useFileSystemPublicRoutes) {
|
|
this.dynamicRoutes = this.getDynamicRoutes()
|
|
}
|
|
|
|
return {
|
|
headers,
|
|
fsRoutes,
|
|
rewrites: {
|
|
beforeFiles,
|
|
afterFiles,
|
|
fallback,
|
|
},
|
|
redirects,
|
|
catchAllRoute,
|
|
useFileSystemPublicRoutes,
|
|
dynamicRoutes: this.dynamicRoutes,
|
|
basePath: this.nextConfig.basePath,
|
|
pageChecker: this.hasPage.bind(this),
|
|
locales: this.nextConfig.i18n?.locales || [],
|
|
}
|
|
}
|
|
|
|
private async getPagePath(
|
|
pathname: string,
|
|
locales?: string[]
|
|
): Promise<string> {
|
|
return getPagePath(
|
|
pathname,
|
|
this.distDir,
|
|
this._isLikeServerless,
|
|
this.renderOpts.dev,
|
|
locales
|
|
)
|
|
}
|
|
|
|
protected async hasPage(pathname: string): Promise<boolean> {
|
|
let found = false
|
|
try {
|
|
found = !!(await this.getPagePath(
|
|
pathname,
|
|
this.nextConfig.i18n?.locales
|
|
))
|
|
} catch (_) {}
|
|
|
|
return found
|
|
}
|
|
|
|
protected async _beforeCatchAllRender(
|
|
_req: IncomingMessage,
|
|
_res: ServerResponse,
|
|
_params: Params,
|
|
_parsedUrl: UrlWithParsedQuery
|
|
): Promise<boolean> {
|
|
return false
|
|
}
|
|
|
|
// Used to build API page in development
|
|
protected async ensureApiPage(_pathname: string): Promise<void> {}
|
|
|
|
/**
|
|
* Resolves `API` request, in development builds on demand
|
|
* @param req http request
|
|
* @param res http response
|
|
* @param pathname path of request
|
|
*/
|
|
private async handleApiRequest(
|
|
req: IncomingMessage,
|
|
res: ServerResponse,
|
|
pathname: string,
|
|
query: ParsedUrlQuery
|
|
): Promise<boolean> {
|
|
let page = pathname
|
|
let params: Params | boolean = false
|
|
let pageFound = await this.hasPage(page)
|
|
|
|
if (!pageFound && this.dynamicRoutes) {
|
|
for (const dynamicRoute of this.dynamicRoutes) {
|
|
params = dynamicRoute.match(pathname)
|
|
if (dynamicRoute.page.startsWith('/api') && params) {
|
|
page = dynamicRoute.page
|
|
pageFound = true
|
|
break
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!pageFound) {
|
|
return false
|
|
}
|
|
// Make sure the page is built before getting the path
|
|
// or else it won't be in the manifest yet
|
|
await this.ensureApiPage(page)
|
|
|
|
let builtPagePath
|
|
try {
|
|
builtPagePath = await this.getPagePath(page)
|
|
} catch (err) {
|
|
if (err.code === 'ENOENT') {
|
|
return false
|
|
}
|
|
throw err
|
|
}
|
|
|
|
const pageModule = await require(builtPagePath)
|
|
query = { ...query, ...params }
|
|
|
|
delete query.__nextLocale
|
|
delete query.__nextDefaultLocale
|
|
|
|
if (!this.renderOpts.dev && this._isLikeServerless) {
|
|
if (typeof pageModule.default === 'function') {
|
|
prepareServerlessUrl(req, query)
|
|
await pageModule.default(req, res)
|
|
return true
|
|
}
|
|
}
|
|
|
|
await apiResolver(
|
|
req,
|
|
res,
|
|
query,
|
|
pageModule,
|
|
this.renderOpts.previewProps,
|
|
false
|
|
)
|
|
return true
|
|
}
|
|
|
|
protected generatePublicRoutes(): Route[] {
|
|
const publicFiles = new Set(
|
|
recursiveReadDirSync(this.publicDir).map((p) =>
|
|
encodeURI(p.replace(/\\/g, '/'))
|
|
)
|
|
)
|
|
|
|
return [
|
|
{
|
|
match: route('/:path*'),
|
|
name: 'public folder catchall',
|
|
fn: async (req, res, params, parsedUrl) => {
|
|
const pathParts: string[] = params.path || []
|
|
const { basePath } = this.nextConfig
|
|
|
|
// if basePath is defined require it be present
|
|
if (basePath) {
|
|
const basePathParts = basePath.split('/')
|
|
// remove first empty value
|
|
basePathParts.shift()
|
|
|
|
if (
|
|
!basePathParts.every((part: string, idx: number) => {
|
|
return part === pathParts[idx]
|
|
})
|
|
) {
|
|
return { finished: false }
|
|
}
|
|
|
|
pathParts.splice(0, basePathParts.length)
|
|
}
|
|
|
|
const path = `/${pathParts.join('/')}`
|
|
|
|
if (publicFiles.has(path)) {
|
|
await this.serveStatic(
|
|
req,
|
|
res,
|
|
join(this.publicDir, ...pathParts),
|
|
parsedUrl
|
|
)
|
|
return {
|
|
finished: true,
|
|
}
|
|
}
|
|
return {
|
|
finished: false,
|
|
}
|
|
},
|
|
} as Route,
|
|
]
|
|
}
|
|
|
|
protected getDynamicRoutes(): Array<DynamicRouteItem> {
|
|
const addedPages = new Set<string>()
|
|
|
|
return getSortedRoutes(
|
|
Object.keys(this.pagesManifest!).map(
|
|
(page) =>
|
|
normalizeLocalePath(page, this.nextConfig.i18n?.locales).pathname
|
|
)
|
|
)
|
|
.map((page) => {
|
|
if (addedPages.has(page) || !isDynamicRoute(page)) return null
|
|
addedPages.add(page)
|
|
return {
|
|
page,
|
|
match: getRouteMatcher(getRouteRegex(page)),
|
|
}
|
|
})
|
|
.filter((item): item is DynamicRouteItem => Boolean(item))
|
|
}
|
|
|
|
private handleCompression(req: IncomingMessage, res: ServerResponse): void {
|
|
if (this.compression) {
|
|
this.compression(req, res, () => {})
|
|
}
|
|
}
|
|
|
|
protected async run(
|
|
req: IncomingMessage,
|
|
res: ServerResponse,
|
|
parsedUrl: UrlWithParsedQuery
|
|
): Promise<void> {
|
|
this.handleCompression(req, res)
|
|
|
|
try {
|
|
const matched = await this.router.execute(req, res, parsedUrl)
|
|
if (matched) {
|
|
return
|
|
}
|
|
} catch (err) {
|
|
if (err.code === 'DECODE_FAILED' || err.code === 'ENAMETOOLONG') {
|
|
res.statusCode = 400
|
|
return this.renderError(null, req, res, '/_error', {})
|
|
}
|
|
throw err
|
|
}
|
|
|
|
await this.render404(req, res, parsedUrl)
|
|
}
|
|
|
|
protected async sendHTML(
|
|
req: IncomingMessage,
|
|
res: ServerResponse,
|
|
html: string
|
|
): Promise<void> {
|
|
const { generateEtags, poweredByHeader } = this.renderOpts
|
|
return sendPayload(req, res, html, 'html', {
|
|
generateEtags,
|
|
poweredByHeader,
|
|
})
|
|
}
|
|
|
|
public async render(
|
|
req: IncomingMessage,
|
|
res: ServerResponse,
|
|
pathname: string,
|
|
query: ParsedUrlQuery = {},
|
|
parsedUrl?: UrlWithParsedQuery
|
|
): Promise<void> {
|
|
if (!pathname.startsWith('/')) {
|
|
console.warn(
|
|
`Cannot render page with path "${pathname}", did you mean "/${pathname}"?. See more info here: https://nextjs.org/docs/messages/render-no-starting-slash`
|
|
)
|
|
}
|
|
|
|
if (
|
|
this.renderOpts.customServer &&
|
|
pathname === '/index' &&
|
|
!(await this.hasPage('/index'))
|
|
) {
|
|
// maintain backwards compatibility for custom server
|
|
// (see custom-server integration tests)
|
|
pathname = '/'
|
|
}
|
|
|
|
const url: any = req.url
|
|
|
|
// we allow custom servers to call render for all URLs
|
|
// so check if we need to serve a static _next file or not.
|
|
// we don't modify the URL for _next/data request but still
|
|
// call render so we special case this to prevent an infinite loop
|
|
if (
|
|
!this.minimalMode &&
|
|
!query._nextDataReq &&
|
|
(url.match(/^\/_next\//) ||
|
|
(this.hasStaticDir && url.match(/^\/static\//)))
|
|
) {
|
|
return this.handleRequest(req, res, parsedUrl)
|
|
}
|
|
|
|
// Custom server users can run `app.render()` which needs compression.
|
|
if (this.renderOpts.customServer) {
|
|
this.handleCompression(req, res)
|
|
}
|
|
|
|
if (isBlockedPage(pathname)) {
|
|
return this.render404(req, res, parsedUrl)
|
|
}
|
|
|
|
const html = await this.renderToHTML(req, res, pathname, query)
|
|
// Request was ended by the user
|
|
if (html === null) {
|
|
return
|
|
}
|
|
|
|
return this.sendHTML(req, res, html)
|
|
}
|
|
|
|
protected async findPageComponents(
|
|
pathname: string,
|
|
query: ParsedUrlQuery = {},
|
|
params: Params | null = null
|
|
): Promise<FindComponentsResult | null> {
|
|
let paths = [
|
|
// try serving a static AMP version first
|
|
query.amp ? normalizePagePath(pathname) + '.amp' : null,
|
|
pathname,
|
|
].filter(Boolean)
|
|
|
|
if (query.__nextLocale) {
|
|
paths = [
|
|
...paths.map(
|
|
(path) => `/${query.__nextLocale}${path === '/' ? '' : path}`
|
|
),
|
|
...paths,
|
|
]
|
|
}
|
|
|
|
for (const pagePath of paths) {
|
|
try {
|
|
const components = await loadComponents(
|
|
this.distDir,
|
|
pagePath!,
|
|
!this.renderOpts.dev && this._isLikeServerless
|
|
)
|
|
// if loading an static HTML file the locale is required
|
|
// to be present since all HTML files are output under their locale
|
|
if (
|
|
query.__nextLocale &&
|
|
typeof components.Component === 'string' &&
|
|
!pagePath?.startsWith(`/${query.__nextLocale}`)
|
|
) {
|
|
const err = new Error('NOT_FOUND')
|
|
;(err as any).code = 'ENOENT'
|
|
throw err
|
|
}
|
|
|
|
return {
|
|
components,
|
|
query: {
|
|
...(components.getStaticProps
|
|
? {
|
|
amp: query.amp,
|
|
_nextDataReq: query._nextDataReq,
|
|
__nextLocale: query.__nextLocale,
|
|
__nextDefaultLocale: query.__nextDefaultLocale,
|
|
}
|
|
: query),
|
|
...(params || {}),
|
|
},
|
|
}
|
|
} catch (err) {
|
|
if (err.code !== 'ENOENT') throw err
|
|
}
|
|
}
|
|
return null
|
|
}
|
|
|
|
protected async getStaticPaths(
|
|
pathname: string
|
|
): Promise<{
|
|
staticPaths: string[] | undefined
|
|
fallbackMode: 'static' | 'blocking' | false
|
|
}> {
|
|
// `staticPaths` is intentionally set to `undefined` as it should've
|
|
// been caught when checking disk data.
|
|
const staticPaths = undefined
|
|
|
|
// Read whether or not fallback should exist from the manifest.
|
|
const fallbackField = this.getPrerenderManifest().dynamicRoutes[pathname]
|
|
.fallback
|
|
|
|
return {
|
|
staticPaths,
|
|
fallbackMode:
|
|
typeof fallbackField === 'string'
|
|
? 'static'
|
|
: fallbackField === null
|
|
? 'blocking'
|
|
: false,
|
|
}
|
|
}
|
|
|
|
private async renderToHTMLWithComponents(
|
|
req: IncomingMessage,
|
|
res: ServerResponse,
|
|
pathname: string,
|
|
{ components, query }: FindComponentsResult,
|
|
opts: RenderOptsPartial
|
|
): Promise<string | null> {
|
|
const is404Page = pathname === '/404'
|
|
const is500Page = pathname === '/500'
|
|
const isErrorPage = pathname === '/_error'
|
|
|
|
const isLikeServerless =
|
|
typeof components.Component === 'object' &&
|
|
typeof (components.Component as any).renderReqToHTML === 'function'
|
|
const isSSG = !!components.getStaticProps
|
|
const hasServerProps = !!components.getServerSideProps
|
|
const hasStaticPaths = !!components.getStaticPaths
|
|
const hasGetInitialProps = !!(components.Component as any).getInitialProps
|
|
|
|
// Toggle whether or not this is a Data request
|
|
const isDataReq = !!query._nextDataReq && (isSSG || hasServerProps)
|
|
delete query._nextDataReq
|
|
|
|
// we need to ensure the status code if /404 is visited directly
|
|
if (is404Page && !isDataReq) {
|
|
res.statusCode = 404
|
|
}
|
|
|
|
if (isErrorPage && res.statusCode === 200) {
|
|
res.statusCode = 404
|
|
}
|
|
|
|
// ensure correct status is set when visiting a status page
|
|
// directly e.g. /500
|
|
if (STATIC_STATUS_PAGES.includes(pathname)) {
|
|
res.statusCode = parseInt(pathname.substr(1), 10)
|
|
}
|
|
|
|
// handle static page
|
|
if (typeof components.Component === 'string') {
|
|
return components.Component
|
|
}
|
|
|
|
if (!query.amp) {
|
|
delete query.amp
|
|
}
|
|
|
|
const locale = query.__nextLocale as string
|
|
const defaultLocale = isSSG
|
|
? this.nextConfig.i18n?.defaultLocale
|
|
: (query.__nextDefaultLocale as string)
|
|
|
|
const { i18n } = this.nextConfig
|
|
const locales = i18n?.locales
|
|
|
|
let previewData: PreviewData
|
|
let isPreviewMode = false
|
|
|
|
if (hasServerProps || isSSG) {
|
|
previewData = tryGetPreviewData(req, res, this.renderOpts.previewProps)
|
|
isPreviewMode = previewData !== false
|
|
}
|
|
|
|
// Compute the iSSG cache key. We use the rewroteUrl since
|
|
// pages with fallback: false are allowed to be rewritten to
|
|
// and we need to look up the path by the rewritten path
|
|
let urlPathname = parseUrl(req.url || '').pathname || '/'
|
|
|
|
let resolvedUrlPathname = (req as any)._nextRewroteUrl
|
|
? (req as any)._nextRewroteUrl
|
|
: urlPathname
|
|
|
|
urlPathname = removePathTrailingSlash(urlPathname)
|
|
resolvedUrlPathname = normalizeLocalePath(
|
|
removePathTrailingSlash(resolvedUrlPathname),
|
|
this.nextConfig.i18n?.locales
|
|
).pathname
|
|
|
|
const stripNextDataPath = (path: string) => {
|
|
if (path.includes(this.buildId)) {
|
|
const splitPath = path.substring(
|
|
path.indexOf(this.buildId) + this.buildId.length
|
|
)
|
|
|
|
path = denormalizePagePath(splitPath.replace(/\.json$/, ''))
|
|
}
|
|
|
|
if (this.nextConfig.i18n) {
|
|
return normalizeLocalePath(path, locales).pathname
|
|
}
|
|
return path
|
|
}
|
|
|
|
const handleRedirect = (pageData: any) => {
|
|
const redirect = {
|
|
destination: pageData.pageProps.__N_REDIRECT,
|
|
statusCode: pageData.pageProps.__N_REDIRECT_STATUS,
|
|
basePath: pageData.pageProps.__N_REDIRECT_BASE_PATH,
|
|
}
|
|
const statusCode = getRedirectStatus(redirect)
|
|
const { basePath } = this.nextConfig
|
|
|
|
if (
|
|
basePath &&
|
|
redirect.basePath !== false &&
|
|
redirect.destination.startsWith('/')
|
|
) {
|
|
redirect.destination = `${basePath}${redirect.destination}`
|
|
}
|
|
|
|
if (statusCode === PERMANENT_REDIRECT_STATUS) {
|
|
res.setHeader('Refresh', `0;url=${redirect.destination}`)
|
|
}
|
|
|
|
res.statusCode = statusCode
|
|
res.setHeader('Location', redirect.destination)
|
|
res.end()
|
|
}
|
|
|
|
// remove /_next/data prefix from urlPathname so it matches
|
|
// for direct page visit and /_next/data visit
|
|
if (isDataReq) {
|
|
resolvedUrlPathname = stripNextDataPath(resolvedUrlPathname)
|
|
urlPathname = stripNextDataPath(urlPathname)
|
|
}
|
|
|
|
let ssgCacheKey =
|
|
isPreviewMode || !isSSG || this.minimalMode
|
|
? undefined // Preview mode bypasses the cache
|
|
: `${locale ? `/${locale}` : ''}${
|
|
(pathname === '/' || resolvedUrlPathname === '/') && locale
|
|
? ''
|
|
: resolvedUrlPathname
|
|
}${query.amp ? '.amp' : ''}`
|
|
|
|
if ((is404Page || is500Page) && isSSG) {
|
|
ssgCacheKey = `${locale ? `/${locale}` : ''}${pathname}${
|
|
query.amp ? '.amp' : ''
|
|
}`
|
|
}
|
|
|
|
if (ssgCacheKey) {
|
|
// we only encode path delimiters for path segments from
|
|
// getStaticPaths so we need to attempt decoding the URL
|
|
// to match against and only escape the path delimiters
|
|
// this allows non-ascii values to be handled e.g. Japanese characters
|
|
|
|
// TODO: investigate adding this handling for non-SSG pages so
|
|
// non-ascii names work there also
|
|
ssgCacheKey = ssgCacheKey
|
|
.split('/')
|
|
.map((seg) => {
|
|
try {
|
|
seg = escapePathDelimiters(decodeURIComponent(seg), true)
|
|
} catch (_) {
|
|
// An improperly encoded URL was provided, this is considered
|
|
// a bad request (400)
|
|
const err: Error & { code?: string } = new Error(
|
|
'failed to decode param'
|
|
)
|
|
err.code = 'DECODE_FAILED'
|
|
throw err
|
|
}
|
|
return seg
|
|
})
|
|
.join('/')
|
|
}
|
|
|
|
// Complete the response with cached data if its present
|
|
const cachedData = ssgCacheKey
|
|
? await this.incrementalCache.get(ssgCacheKey)
|
|
: undefined
|
|
|
|
if (cachedData) {
|
|
const data = isDataReq
|
|
? JSON.stringify(cachedData.pageData)
|
|
: cachedData.html
|
|
|
|
const revalidateOptions = !this.renderOpts.dev
|
|
? {
|
|
private: isPreviewMode,
|
|
stateful: false, // GSP response
|
|
revalidate:
|
|
cachedData.curRevalidate !== undefined
|
|
? cachedData.curRevalidate
|
|
: /* default to minimum revalidate (this should be an invariant) */ 1,
|
|
}
|
|
: undefined
|
|
|
|
if (!isDataReq && cachedData.pageData?.pageProps?.__N_REDIRECT) {
|
|
await handleRedirect(cachedData.pageData)
|
|
} else if (cachedData.isNotFound) {
|
|
if (revalidateOptions) {
|
|
setRevalidateHeaders(res, revalidateOptions)
|
|
}
|
|
if (isDataReq) {
|
|
res.statusCode = 404
|
|
res.end('{"notFound":true}')
|
|
} else {
|
|
await this.render404(req, res, {
|
|
pathname,
|
|
query,
|
|
} as UrlWithParsedQuery)
|
|
}
|
|
} else {
|
|
sendPayload(
|
|
req,
|
|
res,
|
|
data,
|
|
isDataReq ? 'json' : 'html',
|
|
{
|
|
generateEtags: this.renderOpts.generateEtags,
|
|
poweredByHeader: this.renderOpts.poweredByHeader,
|
|
},
|
|
revalidateOptions
|
|
)
|
|
}
|
|
|
|
// Stop the request chain here if the data we sent was up-to-date
|
|
if (!cachedData.isStale) {
|
|
return null
|
|
}
|
|
}
|
|
|
|
// If we're here, that means data is missing or it's stale.
|
|
const maybeCoalesceInvoke = ssgCacheKey
|
|
? (fn: any) => withCoalescedInvoke(fn).bind(null, ssgCacheKey!, [])
|
|
: (fn: any) => async () => {
|
|
const value = await fn()
|
|
return { isOrigin: true, value }
|
|
}
|
|
|
|
const doRender = maybeCoalesceInvoke(
|
|
async (): Promise<{
|
|
html: string | null
|
|
pageData: any
|
|
sprRevalidate: number | false
|
|
isNotFound?: boolean
|
|
isRedirect?: boolean
|
|
}> => {
|
|
let pageData: any
|
|
let html: string | null
|
|
let sprRevalidate: number | false
|
|
let isNotFound: boolean | undefined
|
|
let isRedirect: boolean | undefined
|
|
|
|
let renderResult
|
|
// handle serverless
|
|
if (isLikeServerless) {
|
|
renderResult = await (components.Component as any).renderReqToHTML(
|
|
req,
|
|
res,
|
|
'passthrough',
|
|
{
|
|
locale,
|
|
locales,
|
|
defaultLocale,
|
|
optimizeCss: this.renderOpts.optimizeCss,
|
|
distDir: this.distDir,
|
|
fontManifest: this.renderOpts.fontManifest,
|
|
domainLocales: this.renderOpts.domainLocales,
|
|
}
|
|
)
|
|
|
|
html = renderResult.html
|
|
pageData = renderResult.renderOpts.pageData
|
|
sprRevalidate = renderResult.renderOpts.revalidate
|
|
isNotFound = renderResult.renderOpts.isNotFound
|
|
isRedirect = renderResult.renderOpts.isRedirect
|
|
} else {
|
|
const origQuery = parseUrl(req.url || '', true).query
|
|
const hadTrailingSlash =
|
|
urlPathname !== '/' && this.nextConfig.trailingSlash
|
|
|
|
const resolvedUrl = formatUrl({
|
|
pathname: `${resolvedUrlPathname}${hadTrailingSlash ? '/' : ''}`,
|
|
// make sure to only add query values from original URL
|
|
query: origQuery,
|
|
})
|
|
|
|
const renderOpts: RenderOpts = {
|
|
...components,
|
|
...opts,
|
|
isDataReq,
|
|
resolvedUrl,
|
|
locale,
|
|
locales,
|
|
defaultLocale,
|
|
// For getServerSideProps and getInitialProps we need to ensure we use the original URL
|
|
// and not the resolved URL to prevent a hydration mismatch on
|
|
// asPath
|
|
resolvedAsPath:
|
|
hasServerProps || hasGetInitialProps
|
|
? formatUrl({
|
|
// we use the original URL pathname less the _next/data prefix if
|
|
// present
|
|
pathname: `${urlPathname}${hadTrailingSlash ? '/' : ''}`,
|
|
query: origQuery,
|
|
})
|
|
: resolvedUrl,
|
|
}
|
|
|
|
renderResult = await renderToHTML(
|
|
req,
|
|
res,
|
|
pathname,
|
|
query,
|
|
renderOpts
|
|
)
|
|
|
|
html = renderResult
|
|
// TODO: change this to a different passing mechanism
|
|
pageData = (renderOpts as any).pageData
|
|
sprRevalidate = (renderOpts as any).revalidate
|
|
isNotFound = (renderOpts as any).isNotFound
|
|
isRedirect = (renderOpts as any).isRedirect
|
|
}
|
|
|
|
return { html, pageData, sprRevalidate, isNotFound, isRedirect }
|
|
}
|
|
)
|
|
|
|
const isProduction = !this.renderOpts.dev
|
|
const isDynamicPathname = isDynamicRoute(pathname)
|
|
const didRespond = isResSent(res)
|
|
|
|
const { staticPaths, fallbackMode } = hasStaticPaths
|
|
? await this.getStaticPaths(pathname)
|
|
: { staticPaths: undefined, fallbackMode: false }
|
|
|
|
// When we did not respond from cache, we need to choose to block on
|
|
// rendering or return a skeleton.
|
|
//
|
|
// * Data requests always block.
|
|
//
|
|
// * Blocking mode fallback always blocks.
|
|
//
|
|
// * Preview mode toggles all pages to be resolved in a blocking manner.
|
|
//
|
|
// * Non-dynamic pages should block (though this is an impossible
|
|
// case in production).
|
|
//
|
|
// * Dynamic pages should return their skeleton if not defined in
|
|
// getStaticPaths, then finish the data request on the client-side.
|
|
//
|
|
if (
|
|
this.minimalMode !== true &&
|
|
fallbackMode !== 'blocking' &&
|
|
ssgCacheKey &&
|
|
!didRespond &&
|
|
!isPreviewMode &&
|
|
isDynamicPathname &&
|
|
// Development should trigger fallback when the path is not in
|
|
// `getStaticPaths`
|
|
(isProduction ||
|
|
!staticPaths ||
|
|
!staticPaths.includes(
|
|
// we use ssgCacheKey here as it is normalized to match the
|
|
// encoding from getStaticPaths along with including the locale
|
|
query.amp ? ssgCacheKey.replace(/\.amp$/, '') : ssgCacheKey
|
|
))
|
|
) {
|
|
if (
|
|
// In development, fall through to render to handle missing
|
|
// getStaticPaths.
|
|
(isProduction || staticPaths) &&
|
|
// When fallback isn't present, abort this render so we 404
|
|
fallbackMode !== 'static'
|
|
) {
|
|
throw new NoFallbackError()
|
|
}
|
|
|
|
if (!isDataReq) {
|
|
let html: string
|
|
|
|
// Production already emitted the fallback as static HTML.
|
|
if (isProduction) {
|
|
html = await this.incrementalCache.getFallback(
|
|
locale ? `/${locale}${pathname}` : pathname
|
|
)
|
|
}
|
|
// We need to generate the fallback on-demand for development.
|
|
else {
|
|
query.__nextFallback = 'true'
|
|
if (isLikeServerless) {
|
|
prepareServerlessUrl(req, query)
|
|
}
|
|
const { value: renderResult } = await doRender()
|
|
html = renderResult.html
|
|
}
|
|
|
|
sendPayload(req, res, html, 'html', {
|
|
generateEtags: this.renderOpts.generateEtags,
|
|
poweredByHeader: this.renderOpts.poweredByHeader,
|
|
})
|
|
return null
|
|
}
|
|
}
|
|
|
|
const {
|
|
isOrigin,
|
|
value: { html, pageData, sprRevalidate, isNotFound, isRedirect },
|
|
} = await doRender()
|
|
let resHtml = html
|
|
|
|
const revalidateOptions =
|
|
!this.renderOpts.dev || (hasServerProps && !isDataReq)
|
|
? {
|
|
private: isPreviewMode,
|
|
stateful: !isSSG,
|
|
revalidate: sprRevalidate,
|
|
}
|
|
: undefined
|
|
|
|
if (
|
|
!isResSent(res) &&
|
|
!isNotFound &&
|
|
(isSSG || isDataReq || hasServerProps)
|
|
) {
|
|
if (isRedirect && !isDataReq) {
|
|
await handleRedirect(pageData)
|
|
} else {
|
|
sendPayload(
|
|
req,
|
|
res,
|
|
isDataReq ? JSON.stringify(pageData) : html,
|
|
isDataReq ? 'json' : 'html',
|
|
{
|
|
generateEtags: this.renderOpts.generateEtags,
|
|
poweredByHeader: this.renderOpts.poweredByHeader,
|
|
},
|
|
revalidateOptions
|
|
)
|
|
}
|
|
resHtml = null
|
|
}
|
|
|
|
// Update the cache if the head request and cacheable
|
|
if (isOrigin && ssgCacheKey) {
|
|
await this.incrementalCache.set(
|
|
ssgCacheKey,
|
|
{ html: html!, pageData, isNotFound, isRedirect },
|
|
sprRevalidate
|
|
)
|
|
}
|
|
|
|
if (!isResSent(res) && isNotFound) {
|
|
if (revalidateOptions) {
|
|
setRevalidateHeaders(res, revalidateOptions)
|
|
}
|
|
if (isDataReq) {
|
|
res.statusCode = 404
|
|
res.end('{"notFound":true}')
|
|
} else {
|
|
await this.render404(req, res, {
|
|
pathname,
|
|
query,
|
|
} as UrlWithParsedQuery)
|
|
}
|
|
}
|
|
return resHtml
|
|
}
|
|
|
|
public async renderToHTML(
|
|
req: IncomingMessage,
|
|
res: ServerResponse,
|
|
pathname: string,
|
|
query: ParsedUrlQuery = {}
|
|
): Promise<string | null> {
|
|
const bubbleNoFallback = !!query._nextBubbleNoFallback
|
|
delete query._nextBubbleNoFallback
|
|
|
|
try {
|
|
const result = await this.findPageComponents(pathname, query)
|
|
if (result) {
|
|
try {
|
|
return await this.renderToHTMLWithComponents(
|
|
req,
|
|
res,
|
|
pathname,
|
|
result,
|
|
{ ...this.renderOpts }
|
|
)
|
|
} catch (err) {
|
|
const isNoFallbackError = err instanceof NoFallbackError
|
|
|
|
if (!isNoFallbackError || (isNoFallbackError && bubbleNoFallback)) {
|
|
throw err
|
|
}
|
|
}
|
|
}
|
|
|
|
if (this.dynamicRoutes) {
|
|
for (const dynamicRoute of this.dynamicRoutes) {
|
|
const params = dynamicRoute.match(pathname)
|
|
if (!params) {
|
|
continue
|
|
}
|
|
|
|
const dynamicRouteResult = await this.findPageComponents(
|
|
dynamicRoute.page,
|
|
query,
|
|
params
|
|
)
|
|
if (dynamicRouteResult) {
|
|
try {
|
|
return await this.renderToHTMLWithComponents(
|
|
req,
|
|
res,
|
|
dynamicRoute.page,
|
|
dynamicRouteResult,
|
|
{ ...this.renderOpts, params }
|
|
)
|
|
} catch (err) {
|
|
const isNoFallbackError = err instanceof NoFallbackError
|
|
|
|
if (
|
|
!isNoFallbackError ||
|
|
(isNoFallbackError && bubbleNoFallback)
|
|
) {
|
|
throw err
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
} catch (err) {
|
|
const isNoFallbackError = err instanceof NoFallbackError
|
|
|
|
if (isNoFallbackError && bubbleNoFallback) {
|
|
throw err
|
|
}
|
|
|
|
if (err && err.code === 'DECODE_FAILED') {
|
|
res.statusCode = 400
|
|
return await this.renderErrorToHTML(err, req, res, pathname, query)
|
|
}
|
|
res.statusCode = 500
|
|
const isWrappedError = err instanceof WrappedBuildError
|
|
const html = await this.renderErrorToHTML(
|
|
isWrappedError ? err.innerError : err,
|
|
req,
|
|
res,
|
|
pathname,
|
|
query
|
|
)
|
|
|
|
if (!isWrappedError) {
|
|
if (this.minimalMode) {
|
|
throw err
|
|
}
|
|
this.logError(err)
|
|
}
|
|
return html
|
|
}
|
|
res.statusCode = 404
|
|
return await this.renderErrorToHTML(null, req, res, pathname, query)
|
|
}
|
|
|
|
public async renderError(
|
|
err: Error | null,
|
|
req: IncomingMessage,
|
|
res: ServerResponse,
|
|
pathname: string,
|
|
query: ParsedUrlQuery = {},
|
|
setHeaders = true
|
|
): Promise<void> {
|
|
if (setHeaders) {
|
|
res.setHeader(
|
|
'Cache-Control',
|
|
'no-cache, no-store, max-age=0, must-revalidate'
|
|
)
|
|
}
|
|
const html = await this.renderErrorToHTML(err, req, res, pathname, query)
|
|
|
|
if (this.minimalMode && res.statusCode === 500) {
|
|
throw err
|
|
}
|
|
if (html === null) {
|
|
return
|
|
}
|
|
return this.sendHTML(req, res, html)
|
|
}
|
|
|
|
private customErrorNo404Warn = execOnce(() => {
|
|
console.warn(
|
|
chalk.bold.yellow(`Warning: `) +
|
|
chalk.yellow(
|
|
`You have added a custom /_error page without a custom /404 page. This prevents the 404 page from being auto statically optimized.\nSee here for info: https://nextjs.org/docs/messages/custom-error-no-custom-404`
|
|
)
|
|
)
|
|
})
|
|
|
|
public async renderErrorToHTML(
|
|
_err: Error | null,
|
|
req: IncomingMessage,
|
|
res: ServerResponse,
|
|
_pathname: string,
|
|
query: ParsedUrlQuery = {}
|
|
) {
|
|
let err = _err
|
|
if (this.renderOpts.dev && !err && res.statusCode === 500) {
|
|
err = new Error(
|
|
'An undefined error was thrown sometime during render... ' +
|
|
'See https://nextjs.org/docs/messages/threw-undefined'
|
|
)
|
|
}
|
|
let html: string | null
|
|
try {
|
|
let result: null | FindComponentsResult = null
|
|
|
|
const is404 = res.statusCode === 404
|
|
let using404Page = false
|
|
|
|
// use static 404 page if available and is 404 response
|
|
if (is404) {
|
|
result = await this.findPageComponents('/404', query)
|
|
using404Page = result !== null
|
|
}
|
|
let statusPage = `/${res.statusCode}`
|
|
|
|
if (!result && STATIC_STATUS_PAGES.includes(statusPage)) {
|
|
result = await this.findPageComponents(statusPage, query)
|
|
}
|
|
|
|
if (!result) {
|
|
result = await this.findPageComponents('/_error', query)
|
|
statusPage = '/_error'
|
|
}
|
|
|
|
if (
|
|
process.env.NODE_ENV !== 'production' &&
|
|
!using404Page &&
|
|
(await this.hasPage('/_error')) &&
|
|
!(await this.hasPage('/404'))
|
|
) {
|
|
this.customErrorNo404Warn()
|
|
}
|
|
|
|
try {
|
|
html = await this.renderToHTMLWithComponents(
|
|
req,
|
|
res,
|
|
statusPage,
|
|
result!,
|
|
{
|
|
...this.renderOpts,
|
|
err,
|
|
}
|
|
)
|
|
} catch (maybeFallbackError) {
|
|
if (maybeFallbackError instanceof NoFallbackError) {
|
|
throw new Error('invariant: failed to render error page')
|
|
}
|
|
throw maybeFallbackError
|
|
}
|
|
} catch (renderToHtmlError) {
|
|
const isWrappedError = renderToHtmlError instanceof WrappedBuildError
|
|
if (!isWrappedError) {
|
|
this.logError(renderToHtmlError)
|
|
}
|
|
res.statusCode = 500
|
|
const fallbackComponents = await this.getFallbackErrorComponents()
|
|
|
|
if (fallbackComponents) {
|
|
return this.renderToHTMLWithComponents(
|
|
req,
|
|
res,
|
|
'/_error',
|
|
{
|
|
query,
|
|
components: fallbackComponents,
|
|
},
|
|
{
|
|
...this.renderOpts,
|
|
// We render `renderToHtmlError` here because `err` is
|
|
// already captured in the stacktrace.
|
|
err: isWrappedError
|
|
? renderToHtmlError.innerError
|
|
: renderToHtmlError,
|
|
}
|
|
)
|
|
}
|
|
html = 'Internal Server Error'
|
|
}
|
|
return html
|
|
}
|
|
|
|
protected async getFallbackErrorComponents(): Promise<LoadComponentsReturnType | null> {
|
|
// The development server will provide an implementation for this
|
|
return null
|
|
}
|
|
|
|
public async render404(
|
|
req: IncomingMessage,
|
|
res: ServerResponse,
|
|
parsedUrl?: UrlWithParsedQuery,
|
|
setHeaders = true
|
|
): Promise<void> {
|
|
const url: any = req.url
|
|
const { pathname, query } = parsedUrl ? parsedUrl : parseUrl(url, true)
|
|
const { i18n } = this.nextConfig
|
|
|
|
if (i18n) {
|
|
query.__nextLocale = query.__nextLocale || i18n.defaultLocale
|
|
query.__nextDefaultLocale =
|
|
query.__nextDefaultLocale || i18n.defaultLocale
|
|
}
|
|
res.statusCode = 404
|
|
return this.renderError(null, req, res, pathname!, query, setHeaders)
|
|
}
|
|
|
|
public async serveStatic(
|
|
req: IncomingMessage,
|
|
res: ServerResponse,
|
|
path: string,
|
|
parsedUrl?: UrlWithParsedQuery
|
|
): Promise<void> {
|
|
if (!this.isServeableUrl(path)) {
|
|
return this.render404(req, res, parsedUrl)
|
|
}
|
|
|
|
if (!(req.method === 'GET' || req.method === 'HEAD')) {
|
|
res.statusCode = 405
|
|
res.setHeader('Allow', ['GET', 'HEAD'])
|
|
return this.renderError(null, req, res, path)
|
|
}
|
|
|
|
try {
|
|
await serveStatic(req, res, path)
|
|
} catch (err) {
|
|
if (err.code === 'ENOENT' || err.statusCode === 404) {
|
|
this.render404(req, res, parsedUrl)
|
|
} else if (err.statusCode === 412) {
|
|
res.statusCode = 412
|
|
return this.renderError(err, req, res, path)
|
|
} else {
|
|
throw err
|
|
}
|
|
}
|
|
}
|
|
|
|
private _validFilesystemPathSet: Set<string> | null = null
|
|
private getFilesystemPaths(): Set<string> {
|
|
if (this._validFilesystemPathSet) {
|
|
return this._validFilesystemPathSet
|
|
}
|
|
|
|
const pathUserFilesStatic = join(this.dir, 'static')
|
|
let userFilesStatic: string[] = []
|
|
if (this.hasStaticDir && fs.existsSync(pathUserFilesStatic)) {
|
|
userFilesStatic = recursiveReadDirSync(pathUserFilesStatic).map((f) =>
|
|
join('.', 'static', f)
|
|
)
|
|
}
|
|
|
|
let userFilesPublic: string[] = []
|
|
if (this.publicDir && fs.existsSync(this.publicDir)) {
|
|
userFilesPublic = recursiveReadDirSync(this.publicDir).map((f) =>
|
|
join('.', 'public', f)
|
|
)
|
|
}
|
|
|
|
let nextFilesStatic: string[] = []
|
|
nextFilesStatic = !this.minimalMode
|
|
? recursiveReadDirSync(join(this.distDir, 'static')).map((f) =>
|
|
join('.', relative(this.dir, this.distDir), 'static', f)
|
|
)
|
|
: []
|
|
|
|
return (this._validFilesystemPathSet = new Set<string>([
|
|
...nextFilesStatic,
|
|
...userFilesPublic,
|
|
...userFilesStatic,
|
|
]))
|
|
}
|
|
|
|
protected isServeableUrl(untrustedFileUrl: string): boolean {
|
|
// This method mimics what the version of `send` we use does:
|
|
// 1. decodeURIComponent:
|
|
// https://github.com/pillarjs/send/blob/0.17.1/index.js#L989
|
|
// https://github.com/pillarjs/send/blob/0.17.1/index.js#L518-L522
|
|
// 2. resolve:
|
|
// https://github.com/pillarjs/send/blob/de073ed3237ade9ff71c61673a34474b30e5d45b/index.js#L561
|
|
|
|
let decodedUntrustedFilePath: string
|
|
try {
|
|
// (1) Decode the URL so we have the proper file name
|
|
decodedUntrustedFilePath = decodeURIComponent(untrustedFileUrl)
|
|
} catch {
|
|
return false
|
|
}
|
|
|
|
// (2) Resolve "up paths" to determine real request
|
|
const untrustedFilePath = resolve(decodedUntrustedFilePath)
|
|
|
|
// don't allow null bytes anywhere in the file path
|
|
if (untrustedFilePath.indexOf('\0') !== -1) {
|
|
return false
|
|
}
|
|
|
|
// Check if .next/static, static and public are in the path.
|
|
// If not the path is not available.
|
|
if (
|
|
(untrustedFilePath.startsWith(join(this.distDir, 'static') + sep) ||
|
|
untrustedFilePath.startsWith(join(this.dir, 'static') + sep) ||
|
|
untrustedFilePath.startsWith(join(this.dir, 'public') + sep)) === false
|
|
) {
|
|
return false
|
|
}
|
|
|
|
// Check against the real filesystem paths
|
|
const filesystemUrls = this.getFilesystemPaths()
|
|
const resolved = relative(this.dir, untrustedFilePath)
|
|
return filesystemUrls.has(resolved)
|
|
}
|
|
|
|
protected readBuildId(): string {
|
|
const buildIdFile = join(this.distDir, BUILD_ID_FILE)
|
|
try {
|
|
return fs.readFileSync(buildIdFile, 'utf8').trim()
|
|
} catch (err) {
|
|
if (!fs.existsSync(buildIdFile)) {
|
|
throw new Error(
|
|
`Could not find a production build in the '${this.distDir}' directory. Try building your app with 'next build' before starting the production server. https://nextjs.org/docs/messages/production-start-no-build-id`
|
|
)
|
|
}
|
|
|
|
throw err
|
|
}
|
|
}
|
|
|
|
protected get _isLikeServerless(): boolean {
|
|
return isTargetLikeServerless(this.nextConfig.target)
|
|
}
|
|
}
|
|
|
|
function prepareServerlessUrl(
|
|
req: IncomingMessage,
|
|
query: ParsedUrlQuery
|
|
): void {
|
|
const curUrl = parseUrl(req.url!, true)
|
|
req.url = formatUrl({
|
|
...curUrl,
|
|
search: undefined,
|
|
query: {
|
|
...curUrl.query,
|
|
...query,
|
|
},
|
|
})
|
|
}
|
|
|
|
class NoFallbackError extends Error {}
|
|
|
|
// Internal wrapper around build errors at development
|
|
// time, to prevent us from propagating or logging them
|
|
export class WrappedBuildError extends Error {
|
|
innerError: Error
|
|
|
|
constructor(innerError: Error) {
|
|
super()
|
|
this.innerError = innerError
|
|
}
|
|
}
|