67681fe097
Follow-up to https://github.com/vercel/next.js/pull/30154 this replaces the experimental flag with a warning that is shown once on usage instead.
2611 lines
76 KiB
TypeScript
2611 lines
76 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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modifyRouteRegex,
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} from '../lib/load-custom-routes'
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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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MIDDLEWARE_MANIFEST,
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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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getMiddlewareRegex,
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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 {
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DecodeError,
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isResSent,
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NextApiRequest,
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NextApiResponse,
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normalizeRepeatedSlashes,
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} 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 { DomainLocale, 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 { sendRenderResult, 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, isBot } from './utils'
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import RenderResult from './render-result'
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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 { normalizeLocalePath } from '../shared/lib/i18n/normalize-locale-path'
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import * as Log from '../build/output/log'
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import { detectDomainLocale } from '../shared/lib/i18n/detect-domain-locale'
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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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import ResponseCache, {
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ResponseCacheEntry,
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ResponseCacheValue,
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} from './response-cache'
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import { NextConfigComplete } from './config-shared'
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import { parseNextUrl } from '../shared/lib/router/utils/parse-next-url'
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import isError from '../lib/is-error'
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import { getMiddlewareInfo } from './require'
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import { parseUrl as simpleParseUrl } from '../shared/lib/router/utils/parse-url'
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import { MIDDLEWARE_ROUTE } from '../lib/constants'
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import { run } from './web/sandbox'
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import type { FetchEventResult } from './web/types'
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import type { MiddlewareManifest } from '../build/webpack/plugins/middleware-plugin'
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import type { ParsedNextUrl } from '../shared/lib/router/utils/parse-next-url'
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import type { ParsedUrl } from '../shared/lib/router/utils/parse-url'
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const getCustomRouteMatcher = pathMatch(true)
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type ExpressMiddleware = (
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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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interface RoutingItem {
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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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type RequestContext = {
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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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renderOpts: RenderOptsPartial
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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: NextConfigComplete
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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?: DomainLocale[]
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distDir: string
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concurrentFeatures?: boolean
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}
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private compression?: ExpressMiddleware
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private incrementalCache: IncrementalCache
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private responseCache: ResponseCache
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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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protected middlewareManifest?: MiddlewareManifest
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protected middleware?: RoutingItem[]
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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 as NextConfigComplete
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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:
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this.nextConfig.experimental.disableOptimizedLoading,
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domainLocales: this.nextConfig.i18n?.domains,
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distDir: this.distDir,
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concurrentFeatures: this.nextConfig.experimental.concurrentFeatures,
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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 ExpressMiddleware
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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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const middlewareManifestPath = join(
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join(this.distDir, SERVER_DIRECTORY),
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MIDDLEWARE_MANIFEST
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)
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if (!dev) {
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this.pagesManifest = require(pagesManifestPath)
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if (!this.minimalMode) {
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this.middlewareManifest = require(middlewareManifestPath)
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}
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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(
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this.distDir,
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this._isLikeServerless ? SERVERLESS_DIRECTORY : SERVER_DIRECTORY,
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'pages'
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),
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locales: this.nextConfig.i18n?.locales,
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max: this.nextConfig.experimental.isrMemoryCacheSize,
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flushToDisk: !minimalMode && this.nextConfig.experimental.isrFlushToDisk,
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})
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this.responseCache = new ResponseCache(this.incrementalCache)
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/**
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* This sets environment variable to be used at the time of SSR by head.tsx.
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* 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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*/
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if (this.renderOpts.optimizeFonts) {
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process.env.__NEXT_OPTIMIZE_FONTS = JSON.stringify(true)
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}
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if (this.renderOpts.optimizeImages) {
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process.env.__NEXT_OPTIMIZE_IMAGES = JSON.stringify(true)
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}
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|
if (this.renderOpts.optimizeCss) {
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process.env.__NEXT_OPTIMIZE_CSS = JSON.stringify(true)
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|
}
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|
}
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|
|
public logError(err: Error): void {
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|
if (this.quiet) return
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|
console.error(err)
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|
}
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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> {
|
|
const urlParts = (req.url || '').split('?')
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|
const urlNoQuery = urlParts[0]
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|
if (urlNoQuery?.match(/(\\|\/\/)/)) {
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const cleanUrl = normalizeRepeatedSlashes(req.url!)
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res.setHeader('Location', cleanUrl)
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res.setHeader('Refresh', `0;url=${cleanUrl}`)
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res.statusCode = 308
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res.end(cleanUrl)
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return
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}
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|
setLazyProp({ req: req as any }, 'cookies', getCookieParser(req.headers))
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|
|
// Parse url if parsedUrl not provided
|
|
if (!parsedUrl || typeof parsedUrl !== 'object') {
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const url: any = req.url
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parsedUrl = parseUrl(url, true)
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}
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const { basePath, i18n } = this.nextConfig
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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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}
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|
;(req as any).__NEXT_INIT_URL = req.url
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;(req as any).__NEXT_INIT_QUERY = Object.assign({}, parsedUrl.query)
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const url = parseNextUrl({
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headers: req.headers,
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nextConfig: this.nextConfig,
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|
url: req.url?.replace(/^\/+/, '/'),
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})
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if (url.basePath) {
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|
;(req as any)._nextHadBasePath = true
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req.url = req.url!.replace(basePath, '') || '/'
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}
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|
if (
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this.minimalMode &&
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req.headers['x-matched-path'] &&
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typeof req.headers['x-matched-path'] === 'string'
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|
) {
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|
const reqUrlIsDataUrl = req.url?.includes('/_next/data')
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|
const matchedPathIsDataUrl =
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req.headers['x-matched-path']?.includes('/_next/data')
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const isDataUrl = reqUrlIsDataUrl || matchedPathIsDataUrl
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|
let parsedPath = parseUrl(
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isDataUrl ? req.url! : (req.headers['x-matched-path'] as string),
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true
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)
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const { pathname, query } = parsedPath
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|
let matchedPathname = pathname as string
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|
|
|
let matchedPathnameNoExt = isDataUrl
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|
? matchedPathname.replace(/\.json$/, '')
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|
: matchedPathname
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|
|
|
if (i18n) {
|
|
const localePathResult = normalizeLocalePath(
|
|
matchedPathname || '/',
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|
i18n.locales
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|
)
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|
|
if (localePathResult.detectedLocale) {
|
|
parsedUrl.query.__nextLocale = localePathResult.detectedLocale
|
|
}
|
|
}
|
|
|
|
if (isDataUrl) {
|
|
matchedPathname = denormalizePagePath(matchedPathname)
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|
matchedPathnameNoExt = denormalizePagePath(matchedPathnameNoExt)
|
|
}
|
|
|
|
const pageIsDynamic = isDynamicRoute(matchedPathnameNoExt)
|
|
const combinedRewrites: Rewrite[] = []
|
|
|
|
combinedRewrites.push(...this.customRoutes.rewrites.beforeFiles)
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|
combinedRewrites.push(...this.customRoutes.rewrites.afterFiles)
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|
combinedRewrites.push(...this.customRoutes.rewrites.fallback)
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|
|
|
const utils = getUtils({
|
|
pageIsDynamic,
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|
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> = {}
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|
params = utils.getParamsFromRouteMatches(
|
|
req,
|
|
opts,
|
|
(parsedUrl.query.__nextLocale as string | undefined) || ''
|
|
)
|
|
|
|
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
|
|
}`
|
|
}
|
|
|
|
;(req as any).__nextHadTrailingSlash = url.locale?.trailingSlash
|
|
if (url.locale?.domain) {
|
|
;(req as any).__nextIsLocaleDomain = true
|
|
}
|
|
|
|
if (url.locale?.path.detectedLocale) {
|
|
req.url = formatUrl(url)
|
|
;(req as any).__nextStrippedLocale = true
|
|
if (url.pathname === '/api' || url.pathname.startsWith('/api/')) {
|
|
return this.render404(req, res, parsedUrl)
|
|
}
|
|
}
|
|
|
|
if (!this.minimalMode || !parsedUrl.query.__nextLocale) {
|
|
if (url?.locale?.locale) {
|
|
parsedUrl.query.__nextLocale = url.locale.locale
|
|
}
|
|
}
|
|
|
|
if (url?.locale?.defaultLocale) {
|
|
parsedUrl.query.__nextDefaultLocale = url.locale.defaultLocale
|
|
}
|
|
|
|
if (url.locale?.redirect) {
|
|
res.setHeader('Location', url.locale.redirect)
|
|
res.statusCode = TEMPORARY_REDIRECT_STATUS
|
|
res.end()
|
|
return
|
|
}
|
|
|
|
res.statusCode = 200
|
|
try {
|
|
return await this.run(req, res, parsedUrl)
|
|
} catch (err) {
|
|
if (this.minimalMode || this.renderOpts.dev) {
|
|
throw err
|
|
}
|
|
this.logError(isError(err) ? err : new Error(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 getMiddleware() {
|
|
return Object.keys(this.middlewareManifest?.middleware || {}).map(
|
|
(page) => ({
|
|
match: getRouteMatcher(getMiddlewareRegex(page)),
|
|
page,
|
|
})
|
|
)
|
|
}
|
|
|
|
protected async hasMiddleware(pathname: string): Promise<boolean> {
|
|
try {
|
|
return (
|
|
getMiddlewareInfo({
|
|
dev: this.renderOpts.dev,
|
|
distDir: this.distDir,
|
|
page: pathname,
|
|
serverless: this._isLikeServerless,
|
|
}).paths.length > 0
|
|
)
|
|
} catch (_) {}
|
|
|
|
return false
|
|
}
|
|
|
|
protected async ensureMiddleware(_pathname: string) {}
|
|
|
|
private middlewareBetaWarning = execOnce(() => {
|
|
console.warn(
|
|
chalk.bold.yellow(`Warning: `) +
|
|
chalk.yellow(
|
|
`using beta Middleware (not covered by semver) - https://nextjs.org/docs/messages/beta-middleware`
|
|
)
|
|
)
|
|
})
|
|
|
|
protected async runMiddleware(params: {
|
|
request: IncomingMessage
|
|
response: ServerResponse
|
|
parsedUrl: ParsedNextUrl
|
|
parsed: UrlWithParsedQuery
|
|
}): Promise<FetchEventResult | null> {
|
|
this.middlewareBetaWarning()
|
|
|
|
const page: { name?: string; params?: { [key: string]: string } } = {}
|
|
if (await this.hasPage(params.parsedUrl.pathname)) {
|
|
page.name = params.parsedUrl.pathname
|
|
} else if (this.dynamicRoutes) {
|
|
for (const dynamicRoute of this.dynamicRoutes) {
|
|
const matchParams = dynamicRoute.match(params.parsedUrl.pathname)
|
|
if (matchParams) {
|
|
page.name = dynamicRoute.page
|
|
page.params = matchParams
|
|
break
|
|
}
|
|
}
|
|
}
|
|
|
|
let result: FetchEventResult | null = null
|
|
|
|
for (const middleware of this.middleware || []) {
|
|
if (middleware.match(params.parsedUrl.pathname)) {
|
|
if (!(await this.hasMiddleware(middleware.page))) {
|
|
console.warn(`The Edge Function for ${middleware.page} was not found`)
|
|
continue
|
|
}
|
|
|
|
await this.ensureMiddleware(middleware.page)
|
|
|
|
const middlewareInfo = getMiddlewareInfo({
|
|
dev: this.renderOpts.dev,
|
|
distDir: this.distDir,
|
|
page: middleware.page,
|
|
serverless: this._isLikeServerless,
|
|
})
|
|
|
|
result = await run({
|
|
name: middlewareInfo.name,
|
|
paths: middlewareInfo.paths,
|
|
request: {
|
|
headers: params.request.headers,
|
|
method: params.request.method || 'GET',
|
|
nextConfig: {
|
|
basePath: this.nextConfig.basePath,
|
|
i18n: this.nextConfig.i18n,
|
|
trailingSlash: this.nextConfig.trailingSlash,
|
|
},
|
|
url: (params.request as any).__NEXT_INIT_URL,
|
|
page: page,
|
|
},
|
|
})
|
|
|
|
if (!this.renderOpts.dev) {
|
|
result.promise.catch((error) => {
|
|
console.error(`Uncaught: middleware error after responding`, error)
|
|
})
|
|
|
|
result.waitUntil.catch((error) => {
|
|
console.error(`Uncaught: middleware waitUntil errored`, error)
|
|
})
|
|
}
|
|
|
|
if (!result.response.headers.has('x-middleware-next')) {
|
|
break
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!result) {
|
|
this.render404(params.request, params.response, params.parsed)
|
|
}
|
|
|
|
return result
|
|
}
|
|
|
|
protected generateRoutes(): {
|
|
basePath: string
|
|
headers: Route[]
|
|
rewrites: {
|
|
beforeFiles: Route[]
|
|
afterFiles: Route[]
|
|
fallback: Route[]
|
|
}
|
|
fsRoutes: Route[]
|
|
redirects: Route[]
|
|
catchAllRoute: Route
|
|
catchAllMiddleware?: 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] === 'image' ||
|
|
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()
|
|
|
|
const lastParam = params.path[params.path.length - 1]
|
|
|
|
// show 404 if it doesn't end with .json
|
|
if (typeof lastParam !== 'string' || !lastParam.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) => {
|
|
if (this.minimalMode) {
|
|
res.statusCode = 400
|
|
res.end('Bad Request')
|
|
return {
|
|
finished: true,
|
|
}
|
|
}
|
|
const { imageOptimizer } =
|
|
require('./image-optimizer') as typeof import('./image-optimizer')
|
|
|
|
return 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 restrictedRedirectPaths = ['/_next'].map((p) =>
|
|
this.nextConfig.basePath ? `${this.nextConfig.basePath}${p}` : p
|
|
)
|
|
|
|
const getCustomRoute = (
|
|
r: Rewrite | Redirect | Header,
|
|
type: RouteType
|
|
) => {
|
|
const match = getCustomRouteMatcher(
|
|
r.source,
|
|
!(r as any).internal
|
|
? (regex: string) =>
|
|
modifyRouteRegex(
|
|
regex,
|
|
type === 'redirect' ? restrictedRedirectPaths : undefined
|
|
)
|
|
: undefined
|
|
)
|
|
|
|
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 proxyRequest = async (
|
|
req: IncomingMessage,
|
|
res: ServerResponse,
|
|
parsedUrl: ParsedUrl
|
|
) => {
|
|
const { query } = parsedUrl
|
|
delete (parsedUrl as any).query
|
|
parsedUrl.search = stringifyQuery(req, query)
|
|
|
|
const target = formatUrl(parsedUrl)
|
|
const proxy = new Proxy({
|
|
target,
|
|
changeOrigin: true,
|
|
ignorePath: true,
|
|
xfwd: 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,
|
|
}
|
|
}
|
|
|
|
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 ${redirectRoute.source}`,
|
|
fn: async (req, res, params, parsedUrl) => {
|
|
const { parsedDestination } = prepareDestination(
|
|
redirectRoute.destination,
|
|
params,
|
|
parsedUrl.query,
|
|
false
|
|
)
|
|
|
|
const { query } = parsedDestination
|
|
delete (parsedDestination as any).query
|
|
|
|
parsedDestination.search = stringifyQuery(req, query)
|
|
|
|
let updatedDestination = formatUrl(parsedDestination)
|
|
|
|
if (updatedDestination.startsWith('/')) {
|
|
updatedDestination =
|
|
normalizeRepeatedSlashes(updatedDestination)
|
|
}
|
|
|
|
res.setHeader('Location', updatedDestination)
|
|
res.statusCode = getRedirectStatus(redirectRoute as Redirect)
|
|
|
|
// Since IE11 doesn't support the 308 header add backwards
|
|
// compatibility using refresh header
|
|
if (res.statusCode === 308) {
|
|
res.setHeader('Refresh', `0;url=${updatedDestination}`)
|
|
}
|
|
|
|
res.end(updatedDestination)
|
|
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) {
|
|
return proxyRequest(req, res, parsedDestination)
|
|
}
|
|
|
|
;(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)
|
|
)
|
|
}
|
|
}
|
|
|
|
let catchAllMiddleware: Route | undefined
|
|
|
|
if (!this.minimalMode) {
|
|
catchAllMiddleware = {
|
|
match: route('/:path*'),
|
|
type: 'route',
|
|
name: 'middleware catchall',
|
|
fn: async (req, res, _params, parsed) => {
|
|
const fullUrl = (req as any).__NEXT_INIT_URL
|
|
const parsedUrl = parseNextUrl({
|
|
url: fullUrl,
|
|
headers: req.headers,
|
|
nextConfig: {
|
|
basePath: this.nextConfig.basePath,
|
|
i18n: this.nextConfig.i18n,
|
|
trailingSlash: this.nextConfig.trailingSlash,
|
|
},
|
|
})
|
|
|
|
if (!this.middleware?.some((m) => m.match(parsedUrl.pathname))) {
|
|
return { finished: false }
|
|
}
|
|
|
|
let result: FetchEventResult | null = null
|
|
|
|
try {
|
|
result = await this.runMiddleware({
|
|
request: req,
|
|
response: res,
|
|
parsedUrl: parsedUrl,
|
|
parsed: parsed,
|
|
})
|
|
} catch (err) {
|
|
if (isError(err) && err.code === 'ENOENT') {
|
|
await this.render404(req, res, parsed)
|
|
return { finished: true }
|
|
}
|
|
|
|
const error = isError(err) ? err : new Error(err + '')
|
|
console.error(error)
|
|
res.statusCode = 500
|
|
this.renderError(error, req, res, parsed.pathname || '')
|
|
return { finished: true }
|
|
}
|
|
|
|
if (result === null) {
|
|
return { finished: true }
|
|
}
|
|
|
|
if (
|
|
!result.response.headers.has('x-middleware-rewrite') &&
|
|
!result.response.headers.has('x-middleware-next') &&
|
|
!result.response.headers.has('Location')
|
|
) {
|
|
result.response.headers.set('x-middleware-refresh', '1')
|
|
}
|
|
|
|
result.response.headers.delete('x-middleware-next')
|
|
|
|
for (const [key, value] of result.response.headers.entries()) {
|
|
if (key !== 'content-encoding') {
|
|
res.setHeader(key, value)
|
|
}
|
|
}
|
|
|
|
const preflight =
|
|
req.method === 'HEAD' && req.headers['x-middleware-preflight']
|
|
|
|
if (preflight) {
|
|
res.writeHead(200)
|
|
res.end()
|
|
return {
|
|
finished: true,
|
|
}
|
|
}
|
|
|
|
res.statusCode = result.response.status
|
|
res.statusMessage = result.response.statusText
|
|
|
|
const location = result.response.headers.get('Location')
|
|
if (location) {
|
|
res.statusCode = result.response.status
|
|
if (res.statusCode === 308) {
|
|
res.setHeader('Refresh', `0;url=${location}`)
|
|
}
|
|
|
|
res.end()
|
|
return {
|
|
finished: true,
|
|
}
|
|
}
|
|
|
|
if (result.response.headers.has('x-middleware-rewrite')) {
|
|
const rewrite = result.response.headers.get('x-middleware-rewrite')!
|
|
const rewriteParsed = simpleParseUrl(rewrite)
|
|
if (rewriteParsed.protocol) {
|
|
return proxyRequest(req, res, rewriteParsed)
|
|
}
|
|
|
|
;(req as any)._nextRewroteUrl = rewrite
|
|
;(req as any)._nextDidRewrite =
|
|
(req as any)._nextRewroteUrl !== req.url
|
|
|
|
return {
|
|
finished: false,
|
|
pathname: rewriteParsed.pathname,
|
|
query: {
|
|
...parsedUrl.query,
|
|
...rewriteParsed.query,
|
|
},
|
|
}
|
|
}
|
|
|
|
if (result.response.headers.has('x-middleware-refresh')) {
|
|
res.writeHead(result.response.status)
|
|
for await (const chunk of result.response.body || []) {
|
|
res.write(chunk)
|
|
}
|
|
res.end()
|
|
return {
|
|
finished: true,
|
|
}
|
|
}
|
|
|
|
return {
|
|
finished: false,
|
|
}
|
|
},
|
|
}
|
|
}
|
|
|
|
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.match(MIDDLEWARE_ROUTE)) {
|
|
await this.render404(req, res, parsedUrl)
|
|
return {
|
|
finished: true,
|
|
}
|
|
}
|
|
|
|
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()
|
|
if (!this.minimalMode) {
|
|
this.middleware = this.getMiddleware()
|
|
}
|
|
}
|
|
|
|
return {
|
|
headers,
|
|
fsRoutes,
|
|
rewrites: {
|
|
beforeFiles,
|
|
afterFiles,
|
|
fallback,
|
|
},
|
|
redirects,
|
|
catchAllRoute,
|
|
catchAllMiddleware,
|
|
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 (isError(err) && 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,
|
|
this.minimalMode,
|
|
this.renderOpts.dev,
|
|
page
|
|
)
|
|
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)
|
|
}
|
|
|
|
let path = `/${pathParts.join('/')}`
|
|
|
|
if (!publicFiles.has(path)) {
|
|
// In `next-dev-server.ts`, we ensure encoded paths match
|
|
// decoded paths on the filesystem. So we need do the
|
|
// opposite here: make sure decoded paths match encoded.
|
|
path = encodeURI(path)
|
|
}
|
|
|
|
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<RoutingItem> {
|
|
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 RoutingItem => 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 instanceof DecodeError) {
|
|
res.statusCode = 400
|
|
return this.renderError(null, req, res, '/_error', {})
|
|
}
|
|
throw err
|
|
}
|
|
|
|
await this.render404(req, res, parsedUrl)
|
|
}
|
|
|
|
private async pipe(
|
|
fn: (ctx: RequestContext) => Promise<ResponsePayload | null>,
|
|
partialContext: {
|
|
req: IncomingMessage
|
|
res: ServerResponse
|
|
pathname: string
|
|
query: ParsedUrlQuery
|
|
}
|
|
): Promise<void> {
|
|
const userAgent = partialContext.req.headers['user-agent']
|
|
const ctx = {
|
|
...partialContext,
|
|
renderOpts: {
|
|
...this.renderOpts,
|
|
supportsDynamicHTML: userAgent ? !isBot(userAgent) : false,
|
|
},
|
|
} as const
|
|
const payload = await fn(ctx)
|
|
if (payload === null) {
|
|
return
|
|
}
|
|
const { req, res } = ctx
|
|
const { body, type, revalidateOptions } = payload
|
|
if (!isResSent(res)) {
|
|
const { generateEtags, poweredByHeader, dev } = this.renderOpts
|
|
if (dev) {
|
|
// In dev, we should not cache pages for any reason.
|
|
res.setHeader('Cache-Control', 'no-store, must-revalidate')
|
|
}
|
|
return sendRenderResult({
|
|
req,
|
|
res,
|
|
result: body,
|
|
type,
|
|
generateEtags,
|
|
poweredByHeader,
|
|
options: revalidateOptions,
|
|
})
|
|
}
|
|
}
|
|
|
|
private async getStaticHTML(
|
|
fn: (ctx: RequestContext) => Promise<ResponsePayload | null>,
|
|
partialContext: {
|
|
req: IncomingMessage
|
|
res: ServerResponse
|
|
pathname: string
|
|
query: ParsedUrlQuery
|
|
}
|
|
): Promise<string | null> {
|
|
const payload = await fn({
|
|
...partialContext,
|
|
renderOpts: {
|
|
...this.renderOpts,
|
|
supportsDynamicHTML: false,
|
|
},
|
|
})
|
|
if (payload === null) {
|
|
return null
|
|
}
|
|
return payload.body.toUnchunkedString()
|
|
}
|
|
|
|
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 "/${pathname}"?. See more info here: https://nextjs.org/docs/messages/render-no-starting-slash`
|
|
)
|
|
}
|
|
|
|
if (
|
|
this.renderOpts.customServer &&
|
|
pathname === '/index' &&
|
|
!(await this.hasPage('/index'))
|
|
) {
|
|
// maintain backwards compatibility for custom server
|
|
// (see custom-server integration tests)
|
|
pathname = '/'
|
|
}
|
|
|
|
const url: any = req.url
|
|
|
|
// we allow custom servers to call render for all URLs
|
|
// so check if we need to serve a static _next file or not.
|
|
// we don't modify the URL for _next/data request but still
|
|
// call render so we special case this to prevent an infinite loop
|
|
if (
|
|
!this.minimalMode &&
|
|
!query._nextDataReq &&
|
|
(url.match(/^\/_next\//) ||
|
|
(this.hasStaticDir && url.match(/^\/static\//)))
|
|
) {
|
|
return this.handleRequest(req, res, parsedUrl)
|
|
}
|
|
|
|
// Custom server users can run `app.render()` which needs compression.
|
|
if (this.renderOpts.customServer) {
|
|
this.handleCompression(req, res)
|
|
}
|
|
|
|
if (isBlockedPage(pathname)) {
|
|
return this.render404(req, res, parsedUrl)
|
|
}
|
|
|
|
return this.pipe((ctx) => this.renderToResponse(ctx), {
|
|
req,
|
|
res,
|
|
pathname,
|
|
query,
|
|
})
|
|
}
|
|
|
|
protected async findPageComponents(
|
|
pathname: string,
|
|
query: ParsedUrlQuery = {},
|
|
params: Params | null = null
|
|
): Promise<FindComponentsResult | null> {
|
|
let paths = [
|
|
// try serving a static AMP version first
|
|
query.amp ? normalizePagePath(pathname) + '.amp' : null,
|
|
pathname,
|
|
].filter(Boolean)
|
|
|
|
if (query.__nextLocale) {
|
|
paths = [
|
|
...paths.map(
|
|
(path) => `/${query.__nextLocale}${path === '/' ? '' : path}`
|
|
),
|
|
...paths,
|
|
]
|
|
}
|
|
|
|
for (const pagePath of paths) {
|
|
try {
|
|
const components = await loadComponents(
|
|
this.distDir,
|
|
pagePath!,
|
|
!this.renderOpts.dev && this._isLikeServerless
|
|
)
|
|
|
|
if (
|
|
query.__nextLocale &&
|
|
typeof components.Component === 'string' &&
|
|
!pagePath?.startsWith(`/${query.__nextLocale}`)
|
|
) {
|
|
// if loading an static HTML file the locale is required
|
|
// to be present since all HTML files are output under their locale
|
|
continue
|
|
}
|
|
|
|
return {
|
|
components,
|
|
query: {
|
|
...(components.getStaticProps
|
|
? {
|
|
amp: query.amp,
|
|
_nextDataReq: query._nextDataReq,
|
|
__nextLocale: query.__nextLocale,
|
|
__nextDefaultLocale: query.__nextDefaultLocale,
|
|
}
|
|
: query),
|
|
...(params || {}),
|
|
},
|
|
}
|
|
} catch (err) {
|
|
if (isError(err) && 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 renderToResponseWithComponents(
|
|
{ req, res, pathname, renderOpts: opts }: RequestContext,
|
|
{ components, query }: FindComponentsResult
|
|
): Promise<ResponsePayload | null> {
|
|
const is404Page = pathname === '/404'
|
|
const is500Page = pathname === '/500'
|
|
|
|
const isLikeServerless =
|
|
typeof components.ComponentMod === 'object' &&
|
|
typeof (components.ComponentMod 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
|
|
}
|
|
|
|
// 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 {
|
|
type: 'html',
|
|
// TODO: Static pages should be serialized as RenderResult
|
|
body: RenderResult.fromStatic(components.Component),
|
|
}
|
|
}
|
|
|
|
if (!query.amp) {
|
|
delete query.amp
|
|
}
|
|
|
|
if (opts.supportsDynamicHTML === true) {
|
|
// Disable dynamic HTML in cases that we know it won't be generated,
|
|
// so that we can continue generating a cache key when possible.
|
|
opts.supportsDynamicHTML =
|
|
!isSSG &&
|
|
!isLikeServerless &&
|
|
!query.amp &&
|
|
!this.minimalMode &&
|
|
typeof components.Document?.getInitialProps !== 'function'
|
|
}
|
|
|
|
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}${redirect.destination}`
|
|
}
|
|
|
|
if (redirect.destination.startsWith('/')) {
|
|
redirect.destination = normalizeRepeatedSlashes(redirect.destination)
|
|
}
|
|
|
|
if (statusCode === PERMANENT_REDIRECT_STATUS) {
|
|
res.setHeader('Refresh', `0;url=${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 || opts.supportsDynamicHTML
|
|
? null // 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
|
|
throw new DecodeError('failed to decode param')
|
|
}
|
|
return seg
|
|
})
|
|
.join('/')
|
|
}
|
|
|
|
const doRender: () => Promise<ResponseCacheEntry | null> = async () => {
|
|
let pageData: any
|
|
let body: RenderResult | null
|
|
let sprRevalidate: number | false
|
|
let isNotFound: boolean | undefined
|
|
let isRedirect: boolean | undefined
|
|
|
|
// handle serverless
|
|
if (isLikeServerless) {
|
|
const renderResult = await (
|
|
components.ComponentMod as any
|
|
).renderReqToHTML(req, res, 'passthrough', {
|
|
locale,
|
|
locales,
|
|
defaultLocale,
|
|
optimizeCss: this.renderOpts.optimizeCss,
|
|
distDir: this.distDir,
|
|
fontManifest: this.renderOpts.fontManifest,
|
|
domainLocales: this.renderOpts.domainLocales,
|
|
})
|
|
|
|
body = 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,
|
|
}
|
|
|
|
const renderResult = await renderToHTML(
|
|
req,
|
|
res,
|
|
pathname,
|
|
query,
|
|
renderOpts
|
|
)
|
|
|
|
body = 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
|
|
}
|
|
|
|
let value: ResponseCacheValue | null
|
|
if (isNotFound) {
|
|
value = null
|
|
} else if (isRedirect) {
|
|
value = { kind: 'REDIRECT', props: pageData }
|
|
} else {
|
|
if (!body) {
|
|
return null
|
|
}
|
|
value = { kind: 'PAGE', html: body, pageData }
|
|
}
|
|
return { revalidate: sprRevalidate, value }
|
|
}
|
|
|
|
const cacheEntry = await this.responseCache.get(
|
|
ssgCacheKey,
|
|
async (hasResolved) => {
|
|
const isProduction = !this.renderOpts.dev
|
|
const isDynamicPathname = isDynamicRoute(pathname)
|
|
const didRespond = hasResolved || isResSent(res)
|
|
|
|
let { staticPaths, fallbackMode } = hasStaticPaths
|
|
? await this.getStaticPaths(pathname)
|
|
: { staticPaths: undefined, fallbackMode: false }
|
|
|
|
if (
|
|
fallbackMode === 'static' &&
|
|
isBot(req.headers['user-agent'] || '')
|
|
) {
|
|
fallbackMode = 'blocking'
|
|
}
|
|
|
|
// 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$/, '') : ssgCacheKey
|
|
))
|
|
) {
|
|
if (
|
|
// In development, fall through to render to handle missing
|
|
// getStaticPaths.
|
|
(isProduction || staticPaths) &&
|
|
// When fallback isn't present, abort this render so we 404
|
|
fallbackMode !== 'static'
|
|
) {
|
|
throw new NoFallbackError()
|
|
}
|
|
|
|
if (!isDataReq) {
|
|
// Production already emitted the fallback as static HTML.
|
|
if (isProduction) {
|
|
const html = await this.incrementalCache.getFallback(
|
|
locale ? `/${locale}${pathname}` : pathname
|
|
)
|
|
return {
|
|
value: {
|
|
kind: 'PAGE',
|
|
html: RenderResult.fromStatic(html),
|
|
pageData: {},
|
|
},
|
|
}
|
|
}
|
|
// We need to generate the fallback on-demand for development.
|
|
else {
|
|
query.__nextFallback = 'true'
|
|
if (isLikeServerless) {
|
|
prepareServerlessUrl(req, query)
|
|
}
|
|
const result = await doRender()
|
|
if (!result) {
|
|
return null
|
|
}
|
|
// Prevent caching this result
|
|
delete result.revalidate
|
|
return result
|
|
}
|
|
}
|
|
}
|
|
|
|
const result = await doRender()
|
|
if (!result) {
|
|
return null
|
|
}
|
|
return {
|
|
...result,
|
|
revalidate:
|
|
result.revalidate !== undefined
|
|
? result.revalidate
|
|
: /* default to minimum revalidate (this should be an invariant) */ 1,
|
|
}
|
|
}
|
|
)
|
|
|
|
if (!cacheEntry) {
|
|
if (ssgCacheKey) {
|
|
// A cache entry might not be generated if a response is written
|
|
// in `getInitialProps` or `getServerSideProps`, but those shouldn't
|
|
// have a cache key. If we do have a cache key but we don't end up
|
|
// with a cache entry, then either Next.js or the application has a
|
|
// bug that needs fixing.
|
|
throw new Error('invariant: cache entry required but not generated')
|
|
}
|
|
return null
|
|
}
|
|
|
|
const { revalidate, value: cachedData } = cacheEntry
|
|
const revalidateOptions: any =
|
|
typeof revalidate !== 'undefined' &&
|
|
(!this.renderOpts.dev || (hasServerProps && !isDataReq))
|
|
? {
|
|
// When the page is 404 cache-control should not be added unless
|
|
// we are rendering the 404 page for notFound: true which should
|
|
// cache according to revalidate correctly
|
|
private: isPreviewMode || (is404Page && cachedData),
|
|
stateful: !isSSG,
|
|
revalidate,
|
|
}
|
|
: undefined
|
|
|
|
if (!cachedData) {
|
|
if (revalidateOptions) {
|
|
setRevalidateHeaders(res, revalidateOptions)
|
|
}
|
|
if (isDataReq) {
|
|
res.statusCode = 404
|
|
res.end('{"notFound":true}')
|
|
return null
|
|
} else {
|
|
await this.render404(
|
|
req,
|
|
res,
|
|
{
|
|
pathname,
|
|
query,
|
|
} as UrlWithParsedQuery,
|
|
false
|
|
)
|
|
return null
|
|
}
|
|
} else if (cachedData.kind === 'REDIRECT') {
|
|
if (isDataReq) {
|
|
return {
|
|
type: 'json',
|
|
body: RenderResult.fromStatic(JSON.stringify(cachedData.props)),
|
|
revalidateOptions,
|
|
}
|
|
} else {
|
|
await handleRedirect(cachedData.props)
|
|
return null
|
|
}
|
|
} else {
|
|
return {
|
|
type: isDataReq ? 'json' : 'html',
|
|
body: isDataReq
|
|
? RenderResult.fromStatic(JSON.stringify(cachedData.pageData))
|
|
: cachedData.html,
|
|
revalidateOptions,
|
|
}
|
|
}
|
|
}
|
|
|
|
private async renderToResponse(
|
|
ctx: RequestContext
|
|
): Promise<ResponsePayload | null> {
|
|
const { res, query, pathname } = ctx
|
|
let page = pathname
|
|
const bubbleNoFallback = !!query._nextBubbleNoFallback
|
|
delete query._nextBubbleNoFallback
|
|
|
|
try {
|
|
const result = await this.findPageComponents(pathname, query)
|
|
if (result) {
|
|
try {
|
|
return await this.renderToResponseWithComponents(ctx, result)
|
|
} 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 {
|
|
page = dynamicRoute.page
|
|
return await this.renderToResponseWithComponents(
|
|
{
|
|
...ctx,
|
|
pathname: dynamicRoute.page,
|
|
renderOpts: {
|
|
...ctx.renderOpts,
|
|
params,
|
|
},
|
|
},
|
|
dynamicRouteResult
|
|
)
|
|
} catch (err) {
|
|
const isNoFallbackError = err instanceof NoFallbackError
|
|
|
|
if (
|
|
!isNoFallbackError ||
|
|
(isNoFallbackError && bubbleNoFallback)
|
|
) {
|
|
throw err
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
} catch (error) {
|
|
const err = isError(error) ? error : error ? new Error(error + '') : null
|
|
if (err instanceof NoFallbackError && bubbleNoFallback) {
|
|
throw err
|
|
}
|
|
if (err instanceof DecodeError) {
|
|
res.statusCode = 400
|
|
return await this.renderErrorToResponse(ctx, err)
|
|
}
|
|
|
|
res.statusCode = 500
|
|
const isWrappedError = err instanceof WrappedBuildError
|
|
const response = await this.renderErrorToResponse(
|
|
ctx,
|
|
isWrappedError ? (err as WrappedBuildError).innerError : err
|
|
)
|
|
|
|
if (!isWrappedError) {
|
|
if (this.minimalMode || this.renderOpts.dev) {
|
|
if (isError(err)) err.page = page
|
|
throw err
|
|
}
|
|
this.logError(err || new Error(error + ''))
|
|
}
|
|
return response
|
|
}
|
|
res.statusCode = 404
|
|
return this.renderErrorToResponse(ctx, null)
|
|
}
|
|
|
|
public async renderToHTML(
|
|
req: IncomingMessage,
|
|
res: ServerResponse,
|
|
pathname: string,
|
|
query: ParsedUrlQuery = {}
|
|
): Promise<string | null> {
|
|
return this.getStaticHTML((ctx) => this.renderToResponse(ctx), {
|
|
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'
|
|
)
|
|
}
|
|
|
|
return this.pipe(
|
|
async (ctx) => {
|
|
const response = await this.renderErrorToResponse(ctx, err)
|
|
if (this.minimalMode && res.statusCode === 500) {
|
|
throw err
|
|
}
|
|
return response
|
|
},
|
|
{ req, res, pathname, query }
|
|
)
|
|
}
|
|
|
|
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`
|
|
)
|
|
)
|
|
})
|
|
|
|
private async renderErrorToResponse(
|
|
ctx: RequestContext,
|
|
_err: Error | null
|
|
): Promise<ResponsePayload | null> {
|
|
const { res, query } = ctx
|
|
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'
|
|
)
|
|
}
|
|
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 {
|
|
return await this.renderToResponseWithComponents(
|
|
{
|
|
...ctx,
|
|
pathname: statusPage,
|
|
renderOpts: {
|
|
...ctx.renderOpts,
|
|
err,
|
|
},
|
|
},
|
|
result!
|
|
)
|
|
} catch (maybeFallbackError) {
|
|
if (maybeFallbackError instanceof NoFallbackError) {
|
|
throw new Error('invariant: failed to render error page')
|
|
}
|
|
throw maybeFallbackError
|
|
}
|
|
} catch (error) {
|
|
const renderToHtmlError = isError(error)
|
|
? error
|
|
: error
|
|
? new Error(error + '')
|
|
: null
|
|
const isWrappedError = renderToHtmlError instanceof WrappedBuildError
|
|
if (!isWrappedError) {
|
|
this.logError(renderToHtmlError || new Error(error + ''))
|
|
}
|
|
res.statusCode = 500
|
|
const fallbackComponents = await this.getFallbackErrorComponents()
|
|
|
|
if (fallbackComponents) {
|
|
return this.renderToResponseWithComponents(
|
|
{
|
|
...ctx,
|
|
pathname: '/_error',
|
|
renderOpts: {
|
|
...ctx.renderOpts,
|
|
// We render `renderToHtmlError` here because `err` is
|
|
// already captured in the stacktrace.
|
|
err: isWrappedError
|
|
? renderToHtmlError.innerError
|
|
: renderToHtmlError,
|
|
},
|
|
},
|
|
{
|
|
query,
|
|
components: fallbackComponents,
|
|
}
|
|
)
|
|
}
|
|
return {
|
|
type: 'html',
|
|
body: RenderResult.fromStatic('Internal Server Error'),
|
|
}
|
|
}
|
|
}
|
|
|
|
public async renderErrorToHTML(
|
|
err: Error | null,
|
|
req: IncomingMessage,
|
|
res: ServerResponse,
|
|
pathname: string,
|
|
query: ParsedUrlQuery = {}
|
|
): Promise<string | null> {
|
|
return this.getStaticHTML((ctx) => this.renderErrorToResponse(ctx, err), {
|
|
req,
|
|
res,
|
|
pathname,
|
|
query,
|
|
})
|
|
}
|
|
|
|
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 (error) {
|
|
if (!isError(error)) throw error
|
|
const err = error as Error & { code?: string; statusCode?: number }
|
|
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
|
|
}
|
|
}
|
|
|
|
type ResponsePayload = {
|
|
type: 'html' | 'json'
|
|
body: RenderResult
|
|
revalidateOptions?: any
|
|
}
|