/opt/canhelp/node_modules/next/dist/build/webpack/loaders
Edit: /opt/canhelp/node_modules/next/dist/build/webpack/loaders/next-metadata-route-loader.js (9423B)
"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
0 && (module.exports = {
default: null,
getFilenameAndExtension: null
});
function _export(target, all) {
for(var name in all)Object.defineProperty(target, name, {
enumerable: true,
get: all[name]
});
}
_export(exports, {
default: function() {
return _default;
},
getFilenameAndExtension: function() {
return getFilenameAndExtension;
}
});
const _fs = /*#__PURE__*/ _interop_require_default(require("fs"));
const _path = /*#__PURE__*/ _interop_require_default(require("path"));
const _mimetype = require("../../../lib/mime-type");
const _utils = require("./utils");
function _interop_require_default(obj) {
return obj && obj.__esModule ? obj : {
default: obj
};
}
function errorOnBadHandler(resourcePath) {
return `
if (typeof handler !== 'function') {
throw new Error('Default export is missing in ${JSON.stringify(resourcePath)}')
}
`;
}
/* re-export the userland route configs */ async function createReExportsCode(resourcePath, loaderContext) {
const exportNames = await (0, _utils.getLoaderModuleNamedExports)(resourcePath, loaderContext);
// Re-export configs but avoid conflicted exports
const reExportNames = exportNames.filter((name)=>name !== 'default' && name !== 'generateSitemaps');
return reExportNames.length > 0 ? `export { ${reExportNames.join(', ')} } from ${JSON.stringify(resourcePath)}\n` : '';
}
const cacheHeader = {
none: 'no-cache, no-store',
longCache: 'public, immutable, no-transform, max-age=31536000',
revalidate: 'public, max-age=0, must-revalidate'
};
function getFilenameAndExtension(resourcePath) {
const filename = _path.default.basename(resourcePath);
const [name, ext] = filename.split('.', 2);
return {
name,
ext
};
}
function getContentType(resourcePath) {
let { name, ext } = getFilenameAndExtension(resourcePath);
if (ext === 'jpg') ext = 'jpeg';
if (name === 'favicon' && ext === 'ico') return 'image/x-icon';
if (name === 'sitemap') return 'application/xml';
if (name === 'robots') return 'text/plain';
if (name === 'manifest') return 'application/manifest+json';
if (ext === 'png' || ext === 'jpeg' || ext === 'ico' || ext === 'svg') {
return _mimetype.imageExtMimeTypeMap[ext];
}
return 'text/plain';
}
async function getStaticAssetRouteCode(resourcePath, fileBaseName) {
const cache = fileBaseName === 'favicon' ? 'public, max-age=0, must-revalidate' : process.env.NODE_ENV !== 'production' ? cacheHeader.none : cacheHeader.longCache;
const isTwitter = fileBaseName === 'twitter-image';
const isOpenGraph = fileBaseName === 'opengraph-image';
// Twitter image file size limit is 5MB.
// General Open Graph image file size limit is 8MB.
// x-ref: https://developer.x.com/en/docs/x-for-websites/cards/overview/summary
// x-ref(facebook): https://developers.facebook.com/docs/sharing/webmasters/images
const fileSizeLimit = isTwitter ? 5 : 8;
const imgName = isTwitter ? 'Twitter' : 'Open Graph';
const code = `\
/* static asset route */
import { NextResponse } from 'next/server'
const contentType = ${JSON.stringify(getContentType(resourcePath))}
const buffer = Buffer.from(${JSON.stringify((await _fs.default.promises.readFile(resourcePath)).toString('base64'))}, 'base64'
)
if (${isTwitter || isOpenGraph}) {
const fileSizeInMB = buffer.byteLength / 1024 / 1024
if (fileSizeInMB > ${fileSizeLimit}) {
throw new Error('File size for ${imgName} image ${JSON.stringify(resourcePath)} exceeds ${fileSizeLimit}MB. ' +
\`(Current: \${fileSizeInMB.toFixed(2)}MB)\n\` +
'Read more: https://nextjs.org/docs/app/api-reference/file-conventions/metadata/opengraph-image#image-files-jpg-png-gif'
)
}
}
export function GET() {
return new NextResponse(buffer, {
headers: {
'Content-Type': contentType,
'Cache-Control': ${JSON.stringify(cache)},
},
})
}
export const dynamic = 'force-static'
`;
return code;
}
async function getDynamicTextRouteCode(resourcePath, loaderContext) {
return `\
/* dynamic asset route */
import { NextResponse } from 'next/server'
import handler from ${JSON.stringify(resourcePath)}
import { resolveRouteData } from 'next/dist/build/webpack/loaders/metadata/resolve-route-data'
const contentType = ${JSON.stringify(getContentType(resourcePath))}
const fileType = ${JSON.stringify(getFilenameAndExtension(resourcePath).name)}
${errorOnBadHandler(resourcePath)}
${await createReExportsCode(resourcePath, loaderContext)}
export async function GET() {
const data = await handler()
const content = resolveRouteData(data, fileType)
return new NextResponse(content, {
headers: {
'Content-Type': contentType,
'Cache-Control': ${JSON.stringify(cacheHeader.revalidate)},
},
})
}
`;
}
//
/[id]/route.js
async function getDynamicImageRouteCode(resourcePath, loaderContext) {
return `\
/* dynamic image route */
import { NextResponse } from 'next/server'
import * as userland from ${JSON.stringify(resourcePath)}
const imageModule = { ...userland }
const handler = imageModule.default
const generateImageMetadata = imageModule.generateImageMetadata
${errorOnBadHandler(resourcePath)}
${await createReExportsCode(resourcePath, loaderContext)}
export async function GET(_, ctx) {
const params = await ctx.params
const { __metadata_id__, ...rest } = params || {}
const restParams = params ? rest : undefined
const targetId = __metadata_id__
let id = undefined
if (generateImageMetadata) {
const imageMetadata = await generateImageMetadata({ params: restParams })
id = imageMetadata.find((item) => {
if (process.env.NODE_ENV !== 'production') {
if (item?.id == null) {
throw new Error('id property is required for every item returned from generateImageMetadata')
}
}
return item.id.toString() === targetId
})?.id
if (id == null) {
return new NextResponse('Not Found', {
status: 404,
})
}
}
return handler({ params: restParams, id })
}
`;
}
async function getDynamicSitemapRouteCode(resourcePath, loaderContext) {
let staticGenerationCode = '';
const exportNames = await (0, _utils.getLoaderModuleNamedExports)(resourcePath, loaderContext);
const hasGenerateSitemaps = exportNames.includes('generateSitemaps');
if (process.env.NODE_ENV === 'production' && hasGenerateSitemaps) {
staticGenerationCode = `\
/* dynamic sitemap route */
export async function generateStaticParams() {
const sitemaps = await sitemapModule.generateSitemaps()
const params = []
for (const item of sitemaps) {
params.push({ __metadata_id__: item.id.toString() + '.xml' })
}
return params
}
`;
}
const code = `\
import { NextResponse } from 'next/server'
import * as userland from ${JSON.stringify(resourcePath)}
import { resolveRouteData } from 'next/dist/build/webpack/loaders/metadata/resolve-route-data'
const sitemapModule = { ...userland }
const handler = sitemapModule.default
const contentType = ${JSON.stringify(getContentType(resourcePath))}
const fileType = ${JSON.stringify(getFilenameAndExtension(resourcePath).name)}
${errorOnBadHandler(resourcePath)}
${await createReExportsCode(resourcePath, loaderContext)}
export async function GET(_, ctx) {
const { __metadata_id__: id, ...params } = await ctx.params || {}
const hasXmlExtension = id ? id.endsWith('.xml') : false
if (id && !hasXmlExtension) {
return new NextResponse('Not Found', {
status: 404,
})
}
if (process.env.NODE_ENV !== 'production' && sitemapModule.generateSitemaps) {
const sitemaps = await sitemapModule.generateSitemaps()
for (const item of sitemaps) {
if (item?.id == null) {
throw new Error('id property is required for every item returned from generateSitemaps')
}
}
}
const targetId = id && hasXmlExtension ? id.slice(0, -4) : undefined
const data = await handler({ id: targetId })
const content = resolveRouteData(data, fileType)
return new NextResponse(content, {
headers: {
'Content-Type': contentType,
'Cache-Control': ${JSON.stringify(cacheHeader.revalidate)},
},
})
}
${staticGenerationCode}
`;
return code;
}
// When it's static route, it could be favicon.ico, sitemap.xml, robots.txt etc.
// TODO-METADATA: improve the cache control strategy
const nextMetadataRouterLoader = async function() {
const { isDynamicRouteExtension, filePath } = this.getOptions();
const { name: fileBaseName } = getFilenameAndExtension(filePath);
this.addDependency(filePath);
let code = '';
if (isDynamicRouteExtension === '1') {
if (fileBaseName === 'robots' || fileBaseName === 'manifest') {
code = await getDynamicTextRouteCode(filePath, this);
} else if (fileBaseName === 'sitemap') {
code = await getDynamicSitemapRouteCode(filePath, this);
} else {
code = await getDynamicImageRouteCode(filePath, this);
}
} else {
code = await getStaticAssetRouteCode(filePath, fileBaseName);
}
return code;
};
const _default = nextMetadataRouterLoader;
//# sourceMappingURL=next-metadata-route-loader.js.map