137 lines
3.8 KiB
JavaScript
137 lines
3.8 KiB
JavaScript
// create the vercel.json file
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// Unfortunately this has to be re-run periodically, as AFAICT there is no way to
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// give Zeit a script and tell them to run that, instead of using a static vercel.json file.
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import path from 'path'
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import fs from 'fs'
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import { promisify } from 'util'
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import { routes } from '../__sapper__/service-worker.js'
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import { cloneDeep } from '../src/routes/_utils/lodash-lite.js'
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import inlineScriptChecksum from '../src/inline-script/checksum.js'
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import { sapperInlineScriptChecksums } from '../src/server/sapperInlineScriptChecksums.js'
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const __dirname = path.dirname(new URL(import.meta.url).pathname)
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const writeFile = promisify(fs.writeFile)
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const JSON_TEMPLATE = {
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version: 2,
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env: {
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NODE_ENV: 'production'
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},
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github: {
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silent: true
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},
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builds: [
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{
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src: 'package.json',
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use: '@now/static-build',
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config: {
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distDir: '__sapper__/export'
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}
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}
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],
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routes: [
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{
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src: '^/service-worker\\.js$',
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headers: {
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'cache-control': 'public,max-age=0'
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}
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},
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{
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src: '^/(report\\.html|stats\\.json)$',
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headers: {
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'cache-control': 'public,max-age=3600'
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},
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dest: 'client/$1'
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},
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{
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src: '^/client/.*\\.(js|css|map|LICENSE|txt)$',
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headers: {
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'cache-control': 'public,max-age=31536000,immutable'
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}
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},
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{
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src: '^/.*\\.(png|css|json|svg|jpe?g|map|txt|gz|webapp)$',
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headers: {
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'cache-control': 'public,max-age=3600'
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}
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}
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]
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}
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const SCRIPT_CHECKSUMS = [inlineScriptChecksum]
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.concat(sapperInlineScriptChecksums)
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.map(_ => `'sha256-${_}'`)
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.join(' ')
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const PERMISSIONS_POLICY = 'sync-xhr=(),document-domain=(),interest-cohort=()'
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const HTML_HEADERS = {
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'cache-control': 'public,max-age=3600',
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'content-security-policy': [
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"default-src 'self'",
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`script-src 'self' ${SCRIPT_CHECKSUMS}`,
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"worker-src 'self'",
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"style-src 'self' 'unsafe-inline'",
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"img-src 'self' * data: blob:",
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"media-src 'self' *",
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"connect-src 'self' * data: blob:",
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"frame-src 'none'",
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"frame-ancestors 'none'",
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"object-src 'none'",
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"manifest-src 'self'",
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"form-action 'self'", // we need form-action for the Web Share Target API
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"base-uri 'self'"
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].join(';'),
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'referrer-policy': 'no-referrer',
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'strict-transport-security': 'max-age=15552000; includeSubDomains',
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'permissions-policy': PERMISSIONS_POLICY,
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'x-content-type-options': 'nosniff',
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'x-download-options': 'noopen',
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'x-frame-options': 'DENY',
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'x-xss-protection': '1; mode=block',
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'cross-origin-opener-policy': 'same-origin'
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}
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async function main () {
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const json = cloneDeep(JSON_TEMPLATE)
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const exportDir = path.resolve(__dirname, '../__sapper__/export')
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for (const { pattern } of routes) {
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const route = {
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src: pattern.source,
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headers: cloneDeep(HTML_HEADERS)
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}
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// remove all the regexy stuff in the regex
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const filename = pattern.source.replace(/^\^\\\//, '').replace(/(\\\/)?\?\$$/, '').replace(/\\\//g, '/')
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// try two different possible paths
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const filePath = [
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`${filename}.html`,
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path.join(filename, 'index.html')
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].map(_ => path.resolve(exportDir, _)).find(_ => fs.existsSync(_))
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if (!filePath) { // dynamic route, e.g. /accounts/<accountId/
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// serve calls to dynamic routes via the generic "service worker" index.html,
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// since we can't generate the dynamic content using Zeit's static server
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route.dest = 'service-worker-index.html'
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}
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json.routes.push(route)
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}
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// push a generic route to handle everything else
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json.routes.push({
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src: '^/(.*)',
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headers: cloneDeep(HTML_HEADERS)
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})
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await writeFile(path.resolve(__dirname, '../vercel.json'), JSON.stringify(json, null, ' '), 'utf8')
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}
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main().catch(err => {
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console.error(err)
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process.exit(1)
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})
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