File size: 5,822 Bytes
1e92f2d | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 | import type webpack from 'webpack'
import type { SizeLimit } from '../../../../types'
import type { PagesRouteModuleOptions } from '../../../../server/route-modules/pages/module'
import type { MiddlewareConfig } from '../../../analysis/get-page-static-info'
import { getModuleBuildInfo } from '../get-module-build-info'
import { WEBPACK_RESOURCE_QUERIES } from '../../../../lib/constants'
import { RouteKind } from '../../../../server/route-kind'
import { normalizePagePath } from '../../../../shared/lib/page-path/normalize-page-path'
import { loadEntrypoint } from '../../../load-entrypoint'
import type { PAGE_TYPES } from '../../../../lib/page-types'
export type EdgeSSRLoaderQuery = {
absolute500Path: string
absoluteAppPath: string
absoluteDocumentPath: string
absoluteErrorPath: string
absolutePagePath: string
dev: boolean
isServerComponent: boolean
page: string
stringifiedConfig: string
appDirLoader?: string
pagesType: PAGE_TYPES
sriEnabled: boolean
cacheHandler?: string
cacheHandlers?: string
preferredRegion: string | string[] | undefined
middlewareConfig: string
serverActions?: {
bodySizeLimit?: SizeLimit
allowedOrigins?: string[]
}
}
/*
For pages SSR'd at the edge, we bundle them with the ESM version of Next in order to
benefit from the better tree-shaking and thus, smaller bundle sizes.
The absolute paths for _app, _error and _document, used in this loader, link to the regular CJS modules.
They are generated in `createPagesMapping` where we don't have access to `isEdgeRuntime`,
so we have to do it here. It's not that bad because it keeps all references to ESM modules magic in this place.
*/
function swapDistFolderWithEsmDistFolder(path: string) {
return path.replace('next/dist/pages', 'next/dist/esm/pages')
}
function getRouteModuleOptions(page: string) {
const options: Omit<PagesRouteModuleOptions, 'userland' | 'components'> = {
definition: {
kind: RouteKind.PAGES,
page: normalizePagePath(page),
pathname: page,
// The following aren't used in production.
bundlePath: '',
filename: '',
},
// edge runtime doesn't read from distDir or projectDir
distDir: '',
relativeProjectDir: '',
}
return options
}
const edgeSSRLoader: webpack.LoaderDefinitionFunction<EdgeSSRLoaderQuery> =
async function edgeSSRLoader(this) {
const {
page,
absolutePagePath,
absoluteAppPath,
absoluteDocumentPath,
absolute500Path,
absoluteErrorPath,
isServerComponent,
stringifiedConfig: stringifiedConfigBase64,
appDirLoader: appDirLoaderBase64,
pagesType,
cacheHandler,
cacheHandlers: cacheHandlersStringified,
preferredRegion,
middlewareConfig: middlewareConfigBase64,
} = this.getOptions()
const cacheHandlers = JSON.parse(cacheHandlersStringified || '{}')
if (!cacheHandlers.default) {
cacheHandlers.default = require.resolve(
'../../../../server/lib/cache-handlers/default.external'
)
}
const middlewareConfig: MiddlewareConfig = JSON.parse(
Buffer.from(middlewareConfigBase64, 'base64').toString()
)
const stringifiedConfig = Buffer.from(
stringifiedConfigBase64 || '',
'base64'
).toString()
const appDirLoader = Buffer.from(
appDirLoaderBase64 || '',
'base64'
).toString()
const isAppDir = pagesType === 'app'
const buildInfo = getModuleBuildInfo(this._module as any)
buildInfo.nextEdgeSSR = {
isServerComponent,
page: page,
isAppDir,
}
buildInfo.route = {
page,
absolutePagePath,
preferredRegion,
middlewareConfig,
}
const pagePath = this.utils.contextify(
this.context || this.rootContext,
absolutePagePath
)
const appPath = this.utils.contextify(
this.context || this.rootContext,
swapDistFolderWithEsmDistFolder(absoluteAppPath)
)
const errorPath = this.utils.contextify(
this.context || this.rootContext,
swapDistFolderWithEsmDistFolder(absoluteErrorPath)
)
const documentPath = this.utils.contextify(
this.context || this.rootContext,
swapDistFolderWithEsmDistFolder(absoluteDocumentPath)
)
const userland500Path = absolute500Path
? this.utils.contextify(
this.context || this.rootContext,
swapDistFolderWithEsmDistFolder(absolute500Path)
)
: null
const stringifiedPagePath = JSON.stringify(pagePath)
const pageModPath = `${appDirLoader}${stringifiedPagePath.substring(
1,
stringifiedPagePath.length - 1
)}${isAppDir ? `?${WEBPACK_RESOURCE_QUERIES.edgeSSREntry}` : ''}`
if (isAppDir) {
return await loadEntrypoint(
'edge-ssr-app',
{
VAR_USERLAND: pageModPath,
VAR_PAGE: page,
},
{
nextConfig: stringifiedConfig,
},
{
incrementalCacheHandler: cacheHandler ?? null,
}
)
} else {
return await loadEntrypoint(
'edge-ssr',
{
VAR_USERLAND: pageModPath,
VAR_PAGE: page,
VAR_MODULE_DOCUMENT: documentPath,
VAR_MODULE_APP: appPath,
VAR_MODULE_GLOBAL_ERROR: errorPath,
},
{
nextConfig: stringifiedConfig,
pageRouteModuleOptions: JSON.stringify(getRouteModuleOptions(page)),
errorRouteModuleOptions: JSON.stringify(
getRouteModuleOptions('/_error')
),
user500RouteModuleOptions: JSON.stringify(
getRouteModuleOptions('/500')
),
},
{
userland500Page: userland500Path,
incrementalCacheHandler: cacheHandler ?? null,
}
)
}
}
export default edgeSSRLoader
|