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server.js
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236 lines (208 loc) · 7.86 KB
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import bodyParser from 'body-parser'
import express from 'express'
import path from 'path'
import deserialize from '../shared/deserialize'
import { symbolHashSplit } from '../shared/symbolHash'
import prefix from '../shared/prefix'
import context, { getCurrentContext, generateCurrentContext } from './context'
import emulatePrerender from './emulatePrerender'
import environment from './environment'
import exposeServerFunctions from './exposeServerFunctions'
import { generateFile } from './files'
import hmr from './hmr'
import generateManifest from './manifest'
import { prerender } from './prerender'
import printError from './printError'
import registry from './registry'
import generateRobots from './robots'
import template from './template'
import { generateServiceWorker } from './worker'
import { load } from './lazy'
const server = express()
server.port = process.env.NULLSTACK_SERVER_PORT || process.env.PORT || 3000
let contextStarted = false
let serverStarted = false
server.use(async (request, response, next) => {
if (!contextStarted) {
typeof context.start === 'function' && (await context.start())
contextStarted = true
}
generateCurrentContext({request, response}, () => {
next()
})
})
emulatePrerender(server)
exposeServerFunctions(server)
if (module.hot) {
hmr(server)
}
server.start = function () {
if (serverStarted) return
serverStarted = true
server.use(express.static(path.join(process.cwd(), 'public')))
server.use(bodyParser.text({ limit: server.maximumPayloadSize }))
if (environment.production) {
server.get(`/:number.client.js`, (request, response) => {
response.setHeader('Cache-Control', 'max-age=31536000, immutable')
response.contentType('text/javascript')
response.send(generateFile(`${request.params.number}.client.js`, server))
})
server.get(`/:number.client.css`, (request, response) => {
response.setHeader('Cache-Control', 'max-age=31536000, immutable')
response.contentType('text/css')
response.send(generateFile(`${request.params.number}.client.css`, server))
})
server.get(`/client.css`, (request, response) => {
response.setHeader('Cache-Control', 'max-age=31536000, immutable')
response.contentType('text/css')
response.send(generateFile('client.css', server))
})
server.get(`/client.js`, (request, response) => {
response.setHeader('Cache-Control', 'max-age=31536000, immutable')
response.contentType('text/javascript')
response.send(generateFile('client.js', server))
})
}
if (environment.development) {
server.get(`/client.js.map`, (request, response) => {
response.setHeader('Cache-Control', 'max-age=31536000, immutable')
response.contentType('application/json')
response.send(generateFile('client.js.map', server))
})
server.get(`/:number.client.js.map`, (request, response) => {
response.setHeader('Cache-Control', 'max-age=31536000, immutable')
response.contentType('application/json')
response.send(generateFile(`${request.params.number}.client.js.map`, server))
})
server.get(`/client.css.map`, (request, response) => {
response.setHeader('Cache-Control', 'max-age=31536000, immutable')
response.contentType('application/json')
response.send(generateFile('client.css.map', server))
})
server.get(`/:number.client.css.map`, (request, response) => {
response.setHeader('Cache-Control', 'max-age=31536000, immutable')
response.contentType('application/json')
response.send(generateFile(`${request.params.number}.client.css.map`, server))
})
}
server.get(`/manifest.webmanifest`, (request, response) => {
response.setHeader('Cache-Control', 'max-age=31536000, immutable')
response.contentType('application/manifest+json')
response.send(generateManifest(server))
})
server.get(`/service-worker.js`, (request, response) => {
response.setHeader('Cache-Control', 'max-age=31536000, immutable')
response.contentType('text/javascript')
response.send(generateServiceWorker())
})
server.get('/robots.txt', (request, response) => {
response.send(generateRobots())
})
server.all(`/${prefix}/:hash/:methodName.json`, async (request, response) => {
const payload = request.method === 'GET' ? request.query.payload : request.body
const args = deserialize(payload)
const { hash, methodName } = request.params
const [invokerHash, boundHash] = symbolHashSplit(hash)
const key = `${invokerHash}.${methodName}`
await load(boundHash || invokerHash)
const invokerKlass = registry[invokerHash]
let boundKlass = invokerKlass
if (boundHash) {
boundKlass = registry[boundHash]
if (!(boundKlass.prototype instanceof invokerKlass)) {
return response.status(401).json({})
}
}
const method = registry[key]
if (method !== undefined) {
try {
const currentContext = getCurrentContext(args)
const result = await method.call(boundKlass, currentContext)
response.json({ result })
} catch (error) {
printError(error)
response.status(500).json({})
}
} else {
response.status(404).json({})
}
})
if (module.hot) {
server.all(`/${prefix}/:version/:hash/:methodName.json`, async (request, response) => {
const payload = request.method === 'GET' ? request.query.payload : request.body
const args = deserialize(payload)
const { version, hash, methodName } = request.params
const [invokerHash, boundHash] = symbolHashSplit(hash)
let [filePath, klassName] = (invokerHash || boundHash).split("___")
const file = path.resolve('..', filePath.replaceAll('__', '/'))
console.info('\x1b[1;37m%s\x1b[0m', ` [${request.method}] ${request.path}`)
console.info('\x1b[2;37m%s\x1b[0m', ` - ${file}`)
console.info('\x1b[2;37m%s\x1b[0m', ` - ${klassName}.${methodName}(${JSON.stringify(args)})\n`)
const key = `${invokerHash}.${methodName}`
let invokerKlass;
await load(boundHash || invokerHash)
async function reply() {
let boundKlass = invokerKlass
if (boundHash) {
boundKlass = registry[boundHash]
if (!(boundKlass.prototype instanceof invokerKlass)) {
return response.status(401).json({})
}
}
const method = registry[key]
if (method !== undefined) {
try {
const currentContext = getCurrentContext(args)
const result = await method.call(boundKlass, currentContext)
response.json({ result })
} catch (error) {
printError(error)
response.status(500).json({})
}
} else {
response.status(404).json({})
}
}
async function delay() {
invokerKlass = registry[invokerHash]
if (invokerKlass && invokerKlass.__hashes[methodName] !== version) {
setTimeout(() => {
delay()
}, 0)
} else {
reply()
}
}
delay()
})
}
server.get('*', async (request, response, next) => {
if (request.originalUrl.split('?')[0].indexOf('.') > -1) {
return next()
}
const scope = await prerender(request, response)
if (!response.headersSent) {
const status = scope.context.page.status
const html = template(scope)
response.status(status).send(html)
}
})
server.use((error, _request, response, _next) => {
printError(error)
response.status(500).json({})
})
if (module.hot) {
process.env.__NULLSTACK_FIRST_LOAD_COMPLETE = true
}
if (!server.less) {
server.listen(server.port, async () => {
if (environment.production) {
console.info(
'\x1b[36m%s\x1b[0m',
` ✅️ Your application is ready at http://${process.env.NULLSTACK_PROJECT_DOMAIN}:${process.env.NULLSTACK_SERVER_PORT}\n`,
)
}
})
}
}
export default server