next
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The React Framework
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JavaScript
;
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.renderToHTML = renderToHTML;
exports.useMaybeDeferContent = useMaybeDeferContent;
var _react = _interopRequireDefault(require("react"));
var ReactDOMServer = _interopRequireWildcard(require("react-dom/server"));
var _styledJsx = require("styled-jsx");
var _constants = require("../lib/constants");
var _isSerializableProps = require("../lib/is-serializable-props");
var _amp = require("../shared/lib/amp");
var _ampContext = require("../shared/lib/amp-context");
var _constants1 = require("../shared/lib/constants");
var _head = require("../shared/lib/head");
var _headManagerContext = require("../shared/lib/head-manager-context");
var _loadable = _interopRequireDefault(require("../shared/lib/loadable"));
var _loadableContext = require("../shared/lib/loadable-context");
var _routerContext = require("../shared/lib/router-context");
var _isDynamic = require("../shared/lib/router/utils/is-dynamic");
var _utils = require("../shared/lib/utils");
var _denormalizePagePath = require("./denormalize-page-path");
var _normalizePagePath = require("./normalize-page-path");
var _loadCustomRoutes = require("../lib/load-custom-routes");
var _renderResult = _interopRequireDefault(require("./render-result"));
var _isError = _interopRequireDefault(require("../lib/is-error"));
function _interopRequireDefault(obj) {
return obj && obj.__esModule ? obj : {
default: obj
};
}
function _interopRequireWildcard(obj) {
if (obj && obj.__esModule) {
return obj;
} else {
var newObj = {
};
if (obj != null) {
for(var key in obj){
if (Object.prototype.hasOwnProperty.call(obj, key)) {
var desc = Object.defineProperty && Object.getOwnPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : {
};
if (desc.get || desc.set) {
Object.defineProperty(newObj, key, desc);
} else {
newObj[key] = obj[key];
}
}
}
}
newObj.default = obj;
return newObj;
}
}
let Writable;
let Buffer;
let optimizeAmp;
let getFontDefinitionFromManifest;
let tryGetPreviewData;
let warn;
let postProcess;
if (!process.browser) {
Writable = require('stream').Writable;
Buffer = require('buffer').Buffer;
optimizeAmp = require('./optimize-amp').default;
getFontDefinitionFromManifest = require('./font-utils').getFontDefinitionFromManifest;
tryGetPreviewData = require('./api-utils').tryGetPreviewData;
warn = require('../build/output/log').warn;
postProcess = require('../shared/lib/post-process').default;
} else {
warn = console.warn.bind(console);
}
function noRouter() {
const message = 'No router instance found. you should only use "next/router" inside the client side of your app. https://nextjs.org/docs/messages/no-router-instance';
throw new Error(message);
}
class ServerRouter {
constructor(pathname, query, as, { isFallback }, isReady, basePath, locale, locales, defaultLocale, domainLocales, isPreview, isLocaleDomain){
this.route = pathname.replace(/\/$/, '') || '/';
this.pathname = pathname;
this.query = query;
this.asPath = as;
this.isFallback = isFallback;
this.basePath = basePath;
this.locale = locale;
this.locales = locales;
this.defaultLocale = defaultLocale;
this.isReady = isReady;
this.domainLocales = domainLocales;
this.isPreview = !!isPreview;
this.isLocaleDomain = !!isLocaleDomain;
}
push() {
noRouter();
}
replace() {
noRouter();
}
reload() {
noRouter();
}
back() {
noRouter();
}
prefetch() {
noRouter();
}
beforePopState() {
noRouter();
}
}
function enhanceComponents(options, App, Component) {
// For backwards compatibility
if (typeof options === 'function') {
return {
App,
Component: options(Component)
};
}
return {
App: options.enhanceApp ? options.enhanceApp(App) : App,
Component: options.enhanceComponent ? options.enhanceComponent(Component) : Component
};
}
const invalidKeysMsg = (methodName, invalidKeys)=>{
return `Additional keys were returned from \`${methodName}\`. Properties intended for your component must be nested under the \`props\` key, e.g.:` + `\n\n\treturn { props: { title: 'My Title', content: '...' } }` + `\n\nKeys that need to be moved: ${invalidKeys.join(', ')}.` + `\nRead more: https://nextjs.org/docs/messages/invalid-getstaticprops-value`;
};
function checkRedirectValues(redirect, req, method) {
const { destination , permanent , statusCode , basePath } = redirect;
let errors = [];
const hasStatusCode = typeof statusCode !== 'undefined';
const hasPermanent = typeof permanent !== 'undefined';
if (hasPermanent && hasStatusCode) {
errors.push(`\`permanent\` and \`statusCode\` can not both be provided`);
} else if (hasPermanent && typeof permanent !== 'boolean') {
errors.push(`\`permanent\` must be \`true\` or \`false\``);
} else if (hasStatusCode && !_loadCustomRoutes.allowedStatusCodes.has(statusCode)) {
errors.push(`\`statusCode\` must undefined or one of ${[
..._loadCustomRoutes.allowedStatusCodes
].join(', ')}`);
}
const destinationType = typeof destination;
if (destinationType !== 'string') {
errors.push(`\`destination\` should be string but received ${destinationType}`);
}
const basePathType = typeof basePath;
if (basePathType !== 'undefined' && basePathType !== 'boolean') {
errors.push(`\`basePath\` should be undefined or a false, received ${basePathType}`);
}
if (errors.length > 0) {
throw new Error(`Invalid redirect object returned from ${method} for ${req.url}\n` + errors.join(' and ') + '\n' + `See more info here: https://nextjs.org/docs/messages/invalid-redirect-gssp`);
}
}
async function renderToHTML(req, res, pathname, query, renderOpts) {
// In dev we invalidate the cache by appending a timestamp to the resource URL.
// This is a workaround to fix https://github.com/vercel/next.js/issues/5860
// TODO: remove this workaround when https://bugs.webkit.org/show_bug.cgi?id=187726 is fixed.
renderOpts.devOnlyCacheBusterQueryString = renderOpts.dev ? renderOpts.devOnlyCacheBusterQueryString || `?ts=${Date.now()}` : '';
// don't modify original query object
query = Object.assign({
}, query);
const { err , dev =false , ampPath ='' , App , Document , pageConfig ={
} , Component , buildManifest , fontManifest , reactLoadableManifest , ErrorDebug , getStaticProps , getStaticPaths , getServerSideProps , renderServerComponent , isDataReq , params , previewProps , basePath , devOnlyCacheBusterQueryString , supportsDynamicHTML , concurrentFeatures , } = renderOpts;
const getFontDefinition = (url)=>{
if (fontManifest) {
return getFontDefinitionFromManifest(url, fontManifest);
}
return '';
};
const callMiddleware = async (method, args, props = false)=>{
let results = props ? {
} : [];
if (Document[`${method}Middleware`]) {
let middlewareFunc = await Document[`${method}Middleware`];
middlewareFunc = middlewareFunc.default || middlewareFunc;
const curResults = await middlewareFunc(...args);
if (props) {
for (const result of curResults){
results = {
...results,
...result
};
}
} else {
results = curResults;
}
}
return results;
};
const headTags = (...args)=>callMiddleware('headTags', args)
;
const isFallback = !!query.__nextFallback;
delete query.__nextFallback;
delete query.__nextLocale;
delete query.__nextDefaultLocale;
const isSSG = !!getStaticProps;
const isBuildTimeSSG = isSSG && renderOpts.nextExport;
const defaultAppGetInitialProps = App.getInitialProps === App.origGetInitialProps;
const hasPageGetInitialProps = !!Component.getInitialProps;
const isRSC = !!renderServerComponent;
const pageIsDynamic = (0, _isDynamic).isDynamicRoute(pathname);
const isAutoExport = !hasPageGetInitialProps && defaultAppGetInitialProps && !isSSG && !getServerSideProps;
for (const methodName of [
'getStaticProps',
'getServerSideProps',
'getStaticPaths',
]){
if (Component[methodName]) {
throw new Error(`page ${pathname} ${methodName} ${_constants.GSSP_COMPONENT_MEMBER_ERROR}`);
}
}
if (hasPageGetInitialProps && isSSG) {
throw new Error(_constants.SSG_GET_INITIAL_PROPS_CONFLICT + ` ${pathname}`);
}
if (hasPageGetInitialProps && getServerSideProps) {
throw new Error(_constants.SERVER_PROPS_GET_INIT_PROPS_CONFLICT + ` ${pathname}`);
}
if (getServerSideProps && isSSG) {
throw new Error(_constants.SERVER_PROPS_SSG_CONFLICT + ` ${pathname}`);
}
if (getStaticPaths && !pageIsDynamic) {
throw new Error(`getStaticPaths is only allowed for dynamic SSG pages and was found on '${pathname}'.` + `\nRead more: https://nextjs.org/docs/messages/non-dynamic-getstaticpaths-usage`);
}
if (!!getStaticPaths && !isSSG) {
throw new Error(`getStaticPaths was added without a getStaticProps in ${pathname}. Without getStaticProps, getStaticPaths does nothing`);
}
if (isSSG && pageIsDynamic && !getStaticPaths) {
throw new Error(`getStaticPaths is required for dynamic SSG pages and is missing for '${pathname}'.` + `\nRead more: https://nextjs.org/docs/messages/invalid-getstaticpaths-value`);
}
let asPath = renderOpts.resolvedAsPath || req.url;
if (dev) {
const { isValidElementType } = require('react-is');
if (!isValidElementType(Component)) {
throw new Error(`The default export is not a React Component in page: "${pathname}"`);
}
if (!isValidElementType(App)) {
throw new Error(`The default export is not a React Component in page: "/_app"`);
}
if (!isValidElementType(Document)) {
throw new Error(`The default export is not a React Component in page: "/_document"`);
}
if (isAutoExport || isFallback) {
// remove query values except ones that will be set during export
query = {
...query.amp ? {
amp: query.amp
} : {
}
};
asPath = `${pathname}${// ensure trailing slash is present for non-dynamic auto-export pages
req.url.endsWith('/') && pathname !== '/' && !pageIsDynamic ? '/' : ''}`;
req.url = pathname;
}
if (pathname === '/404' && (hasPageGetInitialProps || getServerSideProps)) {
throw new Error(`\`pages/404\` ${_constants.STATIC_STATUS_PAGE_GET_INITIAL_PROPS_ERROR}`);
}
if (_constants1.STATIC_STATUS_PAGES.includes(pathname) && (hasPageGetInitialProps || getServerSideProps)) {
throw new Error(`\`pages${pathname}\` ${_constants.STATIC_STATUS_PAGE_GET_INITIAL_PROPS_ERROR}`);
}
}
await _loadable.default.preloadAll() // Make sure all dynamic imports are loaded
;
let isPreview;
let previewData;
if ((isSSG || getServerSideProps) && !isFallback && !process.browser) {
// Reads of this are cached on the `req` object, so this should resolve
// instantly. There's no need to pass this data down from a previous
// invoke, where we'd have to consider server & serverless.
previewData = tryGetPreviewData(req, res, previewProps);
isPreview = previewData !== false;
}
// url will always be set
const routerIsReady = !!(getServerSideProps || hasPageGetInitialProps || !defaultAppGetInitialProps && !isSSG);
const router = new ServerRouter(pathname, query, asPath, {
isFallback: isFallback
}, routerIsReady, basePath, renderOpts.locale, renderOpts.locales, renderOpts.defaultLocale, renderOpts.domainLocales, isPreview, req.__nextIsLocaleDomain);
const jsxStyleRegistry = (0, _styledJsx).createStyleRegistry();
const ctx = {
err,
req: isAutoExport ? undefined : req,
res: isAutoExport ? undefined : res,
pathname,
query,
asPath,
locale: renderOpts.locale,
locales: renderOpts.locales,
defaultLocale: renderOpts.defaultLocale,
AppTree: (props)=>{
return(/*#__PURE__*/ _react.default.createElement(AppContainer, null, /*#__PURE__*/ _react.default.createElement(App, Object.assign({
}, props, {
Component: Component,
router: router
}))));
},
defaultGetInitialProps: async (docCtx)=>{
const enhanceApp = (AppComp)=>{
return (props)=>/*#__PURE__*/ _react.default.createElement(AppComp, Object.assign({
}, props))
;
};
const { html , head } = await docCtx.renderPage({
enhanceApp
});
const styles = jsxStyleRegistry.styles();
return {
html,
head,
styles
};
}
};
let props;
const ampState = {
ampFirst: pageConfig.amp === true,
hasQuery: Boolean(query.amp),
hybrid: pageConfig.amp === 'hybrid'
};
// Disable AMP under the web environment
const inAmpMode = !process.browser && (0, _amp).isInAmpMode(ampState);
const reactLoadableModules = [];
let head = (0, _head).defaultHead(inAmpMode);
let scriptLoader = {
};
const nextExport = !isSSG && (renderOpts.nextExport || dev && (isAutoExport || isFallback));
const AppContainer = ({ children })=>/*#__PURE__*/ _react.default.createElement(_routerContext.RouterContext.Provider, {
value: router
}, /*#__PURE__*/ _react.default.createElement(_ampContext.AmpStateContext.Provider, {
value: ampState
}, /*#__PURE__*/ _react.default.createElement(_headManagerContext.HeadManagerContext.Provider, {
value: {
updateHead: (state)=>{
head = state;
},
updateScripts: (scripts)=>{
scriptLoader = scripts;
},
scripts: {
},
mountedInstances: new Set()
}
}, /*#__PURE__*/ _react.default.createElement(_loadableContext.LoadableContext.Provider, {
value: (moduleName)=>reactLoadableModules.push(moduleName)
}, /*#__PURE__*/ _react.default.createElement(_styledJsx.StyleRegistry, {
registry: jsxStyleRegistry
}, children)))))
;
props = await (0, _utils).loadGetInitialProps(App, {
AppTree: ctx.AppTree,
Component,
router,
ctx
});
if ((isSSG || getServerSideProps) && isPreview) {
props.__N_PREVIEW = true;
}
if (isSSG) {
props[_constants1.STATIC_PROPS_ID] = true;
}
if (isSSG && !isFallback) {
let data;
try {
data = await getStaticProps({
...pageIsDynamic ? {
params: query
} : undefined,
...isPreview ? {
preview: true,
previewData: previewData
} : undefined,
locales: renderOpts.locales,
locale: renderOpts.locale,
defaultLocale: renderOpts.defaultLocale
});
} catch (staticPropsError) {
// remove not found error code to prevent triggering legacy
// 404 rendering
if (staticPropsError && staticPropsError.code === 'ENOENT') {
delete staticPropsError.code;
}
throw staticPropsError;
}
if (data == null) {
throw new Error(_constants.GSP_NO_RETURNED_VALUE);
}
const invalidKeys = Object.keys(data).filter((key)=>key !== 'revalidate' && key !== 'props' && key !== 'redirect' && key !== 'notFound'
);
if (invalidKeys.includes('unstable_revalidate')) {
throw new Error(_constants.UNSTABLE_REVALIDATE_RENAME_ERROR);
}
if (invalidKeys.length) {
throw new Error(invalidKeysMsg('getStaticProps', invalidKeys));
}
if (process.env.NODE_ENV !== 'production') {
if (typeof data.notFound !== 'undefined' && typeof data.redirect !== 'undefined') {
throw new Error(`\`redirect\` and \`notFound\` can not both be returned from ${isSSG ? 'getStaticProps' : 'getServerSideProps'} at the same time. Page: ${pathname}\nSee more info here: https://nextjs.org/docs/messages/gssp-mixed-not-found-redirect`);
}
}
if ('notFound' in data && data.notFound) {
if (pathname === '/404') {
throw new Error(`The /404 page can not return notFound in "getStaticProps", please remove it to continue!`);
}
renderOpts.isNotFound = true;
}
if ('redirect' in data && data.redirect && typeof data.redirect === 'object') {
checkRedirectValues(data.redirect, req, 'getStaticProps');
if (isBuildTimeSSG) {
throw new Error(`\`redirect\` can not be returned from getStaticProps during prerendering (${req.url})\n` + `See more info here: https://nextjs.org/docs/messages/gsp-redirect-during-prerender`);
}
data.props = {
__N_REDIRECT: data.redirect.destination,
__N_REDIRECT_STATUS: (0, _loadCustomRoutes).getRedirectStatus(data.redirect)
};
if (typeof data.redirect.basePath !== 'undefined') {
data.props.__N_REDIRECT_BASE_PATH = data.redirect.basePath;
}
renderOpts.isRedirect = true;
}
if ((dev || isBuildTimeSSG) && !renderOpts.isNotFound && !(0, _isSerializableProps).isSerializableProps(pathname, 'getStaticProps', data.props)) {
// this fn should throw an error instead of ever returning `false`
throw new Error('invariant: getStaticProps did not return valid props. Please report this.');
}
if ('revalidate' in data) {
if (typeof data.revalidate === 'number') {
if (!Number.isInteger(data.revalidate)) {
throw new Error(`A page's revalidate option must be seconds expressed as a natural number for ${req.url}. Mixed numbers, such as '${data.revalidate}', cannot be used.` + `\nTry changing the value to '${Math.ceil(data.revalidate)}' or using \`Math.ceil()\` if you're computing the value.`);
} else if (data.revalidate <= 0) {
throw new Error(`A page's revalidate option can not be less than or equal to zero for ${req.url}. A revalidate option of zero means to revalidate after _every_ request, and implies stale data cannot be tolerated.` + `\n\nTo never revalidate, you can set revalidate to \`false\` (only ran once at build-time).` + `\nTo revalidate as soon as possible, you can set the value to \`1\`.`);
} else if (data.revalidate > 31536000) {
// if it's greater than a year for some reason error
console.warn(`Warning: A page's revalidate option was set to more than a year for ${req.url}. This may have been done in error.` + `\nTo only run getStaticProps at build-time and not revalidate at runtime, you can set \`revalidate\` to \`false\`!`);
}
} else if (data.revalidate === true) {
// When enabled, revalidate after 1 second. This value is optimal for
// the most up-to-date page possible, but without a 1-to-1
// request-refresh ratio.
data.revalidate = 1;
} else if (data.revalidate === false || typeof data.revalidate === 'undefined') {
// By default, we never revalidate.
data.revalidate = false;
} else {
throw new Error(`A page's revalidate option must be seconds expressed as a natural number. Mixed numbers and strings cannot be used. Received '${JSON.stringify(data.revalidate)}' for ${req.url}`);
}
} else {
data.revalidate = false;
}
props.pageProps = Object.assign({
}, props.pageProps, 'props' in data ? data.props : undefined);
renderOpts.revalidate = 'revalidate' in data ? data.revalidate : undefined;
renderOpts.pageData = props;
// this must come after revalidate is added to renderOpts
if (renderOpts.isNotFound) {
return null;
}
}
if (getServerSideProps) {
props[_constants1.SERVER_PROPS_ID] = true;
}
if (getServerSideProps && !isFallback) {
let data;
let canAccessRes = true;
let resOrProxy = res;
let deferredContent = false;
if (process.env.NODE_ENV !== 'production') {
resOrProxy = new Proxy(res, {
get: function(obj, prop, receiver) {
if (!canAccessRes) {
const message = `You should not access 'res' after getServerSideProps resolves.` + `\nRead more: https://nextjs.org/docs/messages/gssp-no-mutating-res`;
if (deferredContent) {
throw new Error(message);
} else {
warn(message);
}
}
return Reflect.get(obj, prop, receiver);
}
});
}
try {
data = await getServerSideProps({
req: req,
res: resOrProxy,
query,
resolvedUrl: renderOpts.resolvedUrl,
...pageIsDynamic ? {
params: params
} : undefined,
...previewData !== false ? {
preview: true,
previewData: previewData
} : undefined,
locales: renderOpts.locales,
locale: renderOpts.locale,
defaultLocale: renderOpts.defaultLocale
});
canAccessRes = false;
} catch (serverSidePropsError) {
// remove not found error code to prevent triggering legacy
// 404 rendering
if ((0, _isError).default(serverSidePropsError) && serverSidePropsError.code === 'ENOENT') {
delete serverSidePropsError.code;
}
throw serverSidePropsError;
}
if (data == null) {
throw new Error(_constants.GSSP_NO_RETURNED_VALUE);
}
if (data.props instanceof Promise) {
deferredContent = true;
}
const invalidKeys = Object.keys(data).filter((key)=>key !== 'props' && key !== 'redirect' && key !== 'notFound'
);
if (data.unstable_notFound) {
throw new Error(`unstable_notFound has been renamed to notFound, please update the field to continue. Page: ${pathname}`);
}
if (data.unstable_redirect) {
throw new Error(`unstable_redirect has been renamed to redirect, please update the field to continue. Page: ${pathname}`);
}
if (invalidKeys.length) {
throw new Error(invalidKeysMsg('getServerSideProps', invalidKeys));
}
if ('notFound' in data && data.notFound) {
if (pathname === '/404') {
throw new Error(`The /404 page can not return notFound in "getStaticProps", please remove it to continue!`);
}
renderOpts.isNotFound = true;
return null;
}
if ('redirect' in data && typeof data.redirect === 'object') {
checkRedirectValues(data.redirect, req, 'getServerSideProps');
data.props = {
__N_REDIRECT: data.redirect.destination,
__N_REDIRECT_STATUS: (0, _loadCustomRoutes).getRedirectStatus(data.redirect)
};
if (typeof data.redirect.basePath !== 'undefined') {
data.props.__N_REDIRECT_BASE_PATH = data.redirect.basePath;
}
renderOpts.isRedirect = true;
}
if (deferredContent) {
data.props = await data.props;
}
if ((dev || isBuildTimeSSG) && !(0, _isSerializableProps).isSerializableProps(pathname, 'getServerSideProps', data.props)) {
// this fn should throw an error instead of ever returning `false`
throw new Error('invariant: getServerSideProps did not return valid props. Please report this.');
}
props.pageProps = Object.assign({
}, props.pageProps, data.props);
renderOpts.pageData = props;
}
if (!isSSG && !getServerSideProps && process.env.NODE_ENV !== 'production' && Object.keys((props === null || props === void 0 ? void 0 : props.pageProps) || {
}).includes('url')) {
console.warn(`The prop \`url\` is a reserved prop in Next.js for legacy reasons and will be overridden on page ${pathname}\n` + `See more info here: https://nextjs.org/docs/messages/reserved-page-prop`);
}
// Avoid rendering page un-necessarily for getServerSideProps data request
// and getServerSideProps/getStaticProps redirects
if (isDataReq && !isSSG || renderOpts.isRedirect) {
return _renderResult.default.fromStatic(JSON.stringify(props));
}
// We don't call getStaticProps or getServerSideProps while generating
// the fallback so make sure to set pageProps to an empty object
if (isFallback) {
props.pageProps = {
};
}
// the response might be finished on the getInitialProps call
if ((0, _utils).isResSent(res) && !isSSG) return null;
// we preload the buildManifest for auto-export dynamic pages
// to speed up hydrating query values
let filteredBuildManifest = buildManifest;
if (isAutoExport && pageIsDynamic) {
const page = (0, _denormalizePagePath).denormalizePagePath((0, _normalizePagePath).normalizePagePath(pathname));
// This code would be much cleaner using `immer` and directly pushing into
// the result from `getPageFiles`, we could maybe consider that in the
// future.
if (page in filteredBuildManifest.pages) {
filteredBuildManifest = {
...filteredBuildManifest,
pages: {
...filteredBuildManifest.pages,
[page]: [
...filteredBuildManifest.pages[page],
...filteredBuildManifest.lowPriorityFiles.filter((f)=>f.includes('_buildManifest')
),
]
},
lowPriorityFiles: filteredBuildManifest.lowPriorityFiles.filter((f)=>!f.includes('_buildManifest')
)
};
}
}
/**
* Rules of Static & Dynamic HTML:
*
* 1.) We must generate static HTML unless the caller explicitly opts
* in to dynamic HTML support.
*
* 2.) If dynamic HTML support is requested, we must honor that request
* or throw an error. It is the sole responsibility of the caller to
* ensure they aren't e.g. requesting dynamic HTML for an AMP page.
*
* These rules help ensure that other existing features like request caching,
* coalescing, and ISR continue working as intended.
*/ const generateStaticHTML = supportsDynamicHTML !== true;
const renderDocument = async ()=>{
if (Document.getInitialProps) {
const renderPage = (options = {
})=>{
if (ctx.err && ErrorDebug) {
const html = ReactDOMServer.renderToString(/*#__PURE__*/ _react.default.createElement(ErrorDebug, {
error: ctx.err
}));
return {
html,
head
};
}
if (dev && (props.router || props.Component)) {
throw new Error(`'router' and 'Component' can not be returned in getInitialProps from _app.js https://nextjs.org/docs/messages/cant-override-next-props`);
}
const { App: EnhancedApp , Component: EnhancedComponent } = enhanceComponents(options, App, Component);
const html = ReactDOMServer.renderToString(/*#__PURE__*/ _react.default.createElement(AppContainer, null, /*#__PURE__*/ _react.default.createElement(EnhancedApp, Object.assign({
Component: EnhancedComponent,
router: router
}, props))));
return {
html,
head
};
};
const documentCtx = {
...ctx,
renderPage
};
const docProps = await (0, _utils).loadGetInitialProps(Document, documentCtx);
// the response might be finished on the getInitialProps call
if ((0, _utils).isResSent(res) && !isSSG) return null;
if (!docProps || typeof docProps.html !== 'string') {
const message = `"${(0, _utils).getDisplayName(Document)}.getInitialProps()" should resolve to an object with a "html" prop set with a valid html string`;
throw new Error(message);
}
return {
bodyResult: piperFromArray([
docProps.html
]),
documentElement: (htmlProps)=>/*#__PURE__*/ _react.default.createElement(Document, Object.assign({
}, htmlProps, docProps))
,
head: docProps.head,
headTags: await headTags(documentCtx),
styles: docProps.styles
};
} else {
const content = ctx.err && ErrorDebug ? /*#__PURE__*/ _react.default.createElement(ErrorDebug, {
error: ctx.err
}) : /*#__PURE__*/ _react.default.createElement(AppContainer, null, /*#__PURE__*/ _react.default.createElement(App, Object.assign({
}, props, {
Component: Component,
router: router
})));
const bodyResult = concurrentFeatures ? process.browser ? await renderToReadableStream(content) : await renderToNodeStream(content, generateStaticHTML) : piperFromArray([
ReactDOMServer.renderToString(content)
]);
return {
bodyResult,
documentElement: ()=>Document()
,
head,
headTags: [],
styles: jsxStyleRegistry.styles()
};
}
};
const documentResult = await renderDocument();
if (!documentResult) {
return null;
}
const dynamicImportsIds = new Set();
const dynamicImports = new Set();
for (const mod of reactLoadableModules){
const manifestItem = reactLoadableManifest[mod];
if (manifestItem) {
dynamicImportsIds.add(manifestItem.id);
manifestItem.files.forEach((item)=>{
dynamicImports.add(item);
});
}
}
const hybridAmp = ampState.hybrid;
const docComponentsRendered = {
};
const { assetPrefix , buildId , customServer , defaultLocale , disableOptimizedLoading , domainLocales , locale , locales , runtimeConfig , } = renderOpts;
const htmlProps = {
__NEXT_DATA__: {
props,
page: pathname,
query,
buildId,
assetPrefix: assetPrefix === '' ? undefined : assetPrefix,
runtimeConfig,
nextExport: nextExport === true ? true : undefined,
autoExport: isAutoExport === true ? true : undefined,
isFallback,
dynamicIds: dynamicImportsIds.size === 0 ? undefined : Array.from(dynamicImportsIds),
err: renderOpts.err ? serializeError(dev, renderOpts.err) : undefined,
gsp: !!getStaticProps ? true : undefined,
gssp: !!getServerSideProps ? true : undefined,
rsc: isRSC ? true : undefined,
customServer,
gip: hasPageGetInitialProps ? true : undefined,
appGip: !defaultAppGetInitialProps ? true : undefined,
locale,
locales,
defaultLocale,
domainLocales,
isPreview: isPreview === true ? true : undefined
},
buildManifest: filteredBuildManifest,
docComponentsRendered,
dangerousAsPath: router.asPath,
canonicalBase: !renderOpts.ampPath && req.__nextStrippedLocale ? `${renderOpts.canonicalBase || ''}/${renderOpts.locale}` : renderOpts.canonicalBase,
ampPath,
inAmpMode,
isDevelopment: !!dev,
hybridAmp,
dynamicImports: Array.from(dynamicImports),
assetPrefix,
// Only enabled in production as development mode has features relying on HMR (style injection for example)
unstable_runtimeJS: process.env.NODE_ENV === 'production' ? pageConfig.unstable_runtimeJS : undefined,
unstable_JsPreload: pageConfig.unstable_JsPreload,
devOnlyCacheBusterQueryString,
scriptLoader,
locale,
disableOptimizedLoading,
head: documentResult.head,
headTags: documentResult.headTags,
styles: documentResult.styles,
useMaybeDeferContent
};
const documentHTML = ReactDOMServer.renderToStaticMarkup(/*#__PURE__*/ _react.default.createElement(_ampContext.AmpStateContext.Provider, {
value: ampState
}, /*#__PURE__*/ _react.default.createElement(_utils.HtmlContext.Provider, {
value: htmlProps
}, documentResult.documentElement(htmlProps))));
if (process.env.NODE_ENV !== 'production') {
const nonRenderedComponents = [];
const expectedDocComponents = [
'Main',
'Head',
'NextScript',
'Html'
];
for (const comp of expectedDocComponents){
if (!docComponentsRendered[comp]) {
nonRenderedComponents.push(comp);
}
}
const plural = nonRenderedComponents.length !== 1 ? 's' : '';
if (nonRenderedComponents.length) {
const missingComponentList = nonRenderedComponents.map((e)=>`<${e} />`
).join(', ');
warn(`Your custom Document (pages/_document) did not render all the required subcomponent${plural}.\n` + `Missing component${plural}: ${missingComponentList}\n` + 'Read how to fix here: https://nextjs.org/docs/messages/missing-document-component');
}
}
const renderTargetIdx = documentHTML.indexOf(_constants1.BODY_RENDER_TARGET);
const prefix = [];
prefix.push('<!DOCTYPE html>');
prefix.push(documentHTML.substring(0, renderTargetIdx));
if (inAmpMode) {
prefix.push('<!-- __NEXT_DATA__ -->');
}
let pipers = [
piperFromArray(prefix),
documentResult.bodyResult,
piperFromArray([
documentHTML.substring(renderTargetIdx + _constants1.BODY_RENDER_TARGET.length),
]),
];
const postProcessors = (generateStaticHTML ? [
inAmpMode ? async (html)=>{
html = await optimizeAmp(html, renderOpts.ampOptimizerConfig);
if (!renderOpts.ampSkipValidation && renderOpts.ampValidator) {
await renderOpts.ampValidator(html, pathname);
}
return html;
} : null,
!process.browser && (process.env.__NEXT_OPTIMIZE_FONTS || process.env.__NEXT_OPTIMIZE_IMAGES) ? async (html)=>{
return await postProcess(html, {
getFontDefinition
}, {
optimizeFonts: renderOpts.optimizeFonts,
optimizeImages: renderOpts.optimizeImages
});
} : null,
!process.browser && renderOpts.optimizeCss ? async (html)=>{
// eslint-disable-next-line import/no-extraneous-dependencies
const Critters = require('critters');
const cssOptimizer = new Critters({
ssrMode: true,
reduceInlineStyles: false,
path: renderOpts.distDir,
publicPath: `${renderOpts.assetPrefix}/_next/`,
preload: 'media',
fonts: false,
...renderOpts.optimizeCss
});
return await cssOptimizer.process(html);
} : null,
inAmpMode || hybridAmp ? async (html)=>{
return html.replace(/&amp=1/g, '&=1');
} : null,
] : []).filter(Boolean);
if (generateStaticHTML || postProcessors.length > 0) {
let html = await piperToString(chainPipers(pipers));
for (const postProcessor of postProcessors){
if (postProcessor) {
html = await postProcessor(html);
}
}
return new _renderResult.default(html);
}
return new _renderResult.default(chainPipers(pipers));
}
function errorToJSON(err) {
return {
name: err.name,
message: err.message,
stack: err.stack,
middleware: err.middleware
};
}
function serializeError(dev, err) {
if (dev) {
return errorToJSON(err);
}
return {
name: 'Internal Server Error.',
message: '500 - Internal Server Error.',
statusCode: 500
};
}
function renderToNodeStream(element, generateStaticHTML) {
return new Promise((resolve, reject)=>{
let underlyingStream = null;
const stream = new Writable({
// Use the buffer from the underlying stream
highWaterMark: 0,
writev (chunks, callback) {
let str = '';
for (let { chunk } of chunks){
str += chunk.toString();
}
if (!underlyingStream) {
throw new Error('invariant: write called without an underlying stream. This is a bug in Next.js');
}
if (!underlyingStream.writable.write(str)) {
underlyingStream.queuedCallbacks.push(()=>callback()
);
} else {
callback();
}
}
});
stream.once('finish', ()=>{
if (!underlyingStream) {
throw new Error('invariant: finish called without an underlying stream. This is a bug in Next.js');
}
underlyingStream.resolve();
});
stream.once('error', (err)=>{
if (!underlyingStream) {
throw new Error('invariant: error called without an underlying stream. This is a bug in Next.js');
}
underlyingStream.resolve(err);
});
// React uses `flush` to prevent stream middleware like gzip from buffering to the
// point of harming streaming performance, so we make sure to expose it and forward it.
// See: https://github.com/reactwg/react-18/discussions/91
Object.defineProperty(stream, 'flush', {
value: ()=>{
if (!underlyingStream) {
throw new Error('invariant: flush called without an underlying stream. This is a bug in Next.js');
}
if (typeof underlyingStream.writable.flush === 'function') {
underlyingStream.writable.flush();
}
},
enumerable: true
});
let resolved = false;
const doResolve = (startWriting)=>{
if (!resolved) {
resolved = true;
resolve((res, next)=>{
const drainHandler = ()=>{
const prevCallbacks = underlyingStream.queuedCallbacks;
underlyingStream.queuedCallbacks = [];
prevCallbacks.forEach((callback)=>callback()
);
};
res.on('drain', drainHandler);
underlyingStream = {
resolve: (err)=>{
underlyingStream = null;
res.removeListener('drain', drainHandler);
next(err);
},
writable: res,
queuedCallbacks: []
};
startWriting();
});
}
};
const { abort , pipe } = ReactDOMServer.renderToPipeableStream(element, {
onError (error) {
if (!resolved) {
resolved = true;
reject(error);
}
abort();
},
onCompleteShell () {
if (!generateStaticHTML) {
doResolve(()=>pipe(stream)
);
}
},
onCompleteAll () {
doResolve(()=>pipe(stream)
);
}
});
});
}
function renderToReadableStream(element) {
return (res, next)=>{
let bufferedString = '';
let shellCompleted = false;
const readable = ReactDOMServer.renderToReadableStream(element, {
onCompleteShell () {
shellCompleted = true;
if (bufferedString) {
res.write(bufferedString);
bufferedString = '';
}
}
});
const reader = readable.getReader();
const decoder = new TextDecoder();
const process = ()=>{
reader.read().then(({ done , value })=>{
if (!done) {
const s = typeof value === 'string' ? value : decoder.decode(value);
if (shellCompleted) {
res.write(s);
} else {
bufferedString += s;
}
process();
} else {
next();
}
});
};
process();
};
}
function chainPipers(pipers) {
return pipers.reduceRight((lhs, rhs)=>(res, next)=>{
rhs(res, (err)=>err ? next(err) : lhs(res, next)
);
}
, (res, next)=>{
res.end();
next();
});
}
function piperFromArray(chunks) {
return (res, next)=>{
if (typeof res.cork === 'function') {
res.cork();
}
chunks.forEach((chunk)=>res.write(chunk)
);
if (typeof res.uncork === 'function') {
res.uncork();
}
next();
};
}
function piperToString(input) {
return new Promise((resolve, reject)=>{
const bufferedChunks = [];
const stream = new Writable({
writev (chunks, callback) {
chunks.forEach((chunk)=>bufferedChunks.push(chunk.chunk)
);
callback();
}
});
input(stream, (err)=>{
if (err) {
reject(err);
} else {
resolve(Buffer.concat(bufferedChunks).toString());
}
});
});
}
function useMaybeDeferContent(_name, contentFn) {
return [
false,
contentFn()
];
}
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