/
index.ts
274 lines (242 loc) · 7.44 KB
/
index.ts
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require('dotenv-defaults').config()
import next from 'next'
import exec from 'execa'
import { parse } from 'url'
import Koa, { Context } from 'koa'
import proxy from 'koa-proxy'
import serve from 'koa-static'
import Router from '@koa/router'
import compress from 'koa-compress'
import cacheControl from 'koa-cache-control'
import requestId from 'koa-requestid'
import auth from 'koa-basic-auth'
import bodyParser from 'koa-bodyparser'
import invariant from 'ts-invariant'
import Cache from './utils/cache.utils'
import { parsePackageString } from './utils/common.utils'
import firebaseUtils from './utils/firebase.utils'
import logger from './server/Logger'
import limit from './server/middlewares/rateLimit.middleware'
import exportsMiddlware from './server/middlewares/exports.middleware'
import exportsSizesMiddlware from './server/middlewares/exportsSizes.middleware'
import resolvePackageMiddleware from './server/middlewares/results/resolvePackage.middleware'
import cachedResponseMiddleware from './server/middlewares/results/cachedResponse.middleware'
import buildMiddleware from './server/middlewares/results/build.middleware'
import errorMiddleware from './server/middlewares/results/error.middleware'
import blockBlacklistMiddleware from './server/middlewares/results/blockBlacklist.middleware'
import requestLoggerMiddleware from './server/middlewares/requestLogger.middleware'
import similarPackagesMiddleware from './server/middlewares/similar-packages/similarPackages.middleware'
import generateImgMiddleware from './server/middlewares/generateImg.middleware'
import jsonCacheMiddleware from './server/middlewares/jsonCache.middleware'
import config from './server/config'
function getEnv(env: Record<string, string | undefined | null>) {
invariant(
env.BASIC_AUTH_PASSWORD,
'Environment variable BASIC_AUTH_PASSWORD is required'
)
invariant(env.NODE_ENV, 'Environment variable NODE_ENV is required')
return {
basicAuthPassword: env.BASIC_AUTH_PASSWORD,
port: env.PORT ? parseInt(env.PORT) : config.DEFAULT_DEV_PORT,
nodeEnv: env.NODE_ENV,
}
}
const env = getEnv(process.env)
const cache = new Cache()
const port = env.port
const dev = env.nodeEnv !== 'production'
const app = next({ dev })
const handle = app.getRequestHandler()
app.prepare().then(() => {
const server = new Koa()
const router = new Router()
server.use(requestId())
server.use(bodyParser())
server.use(requestLoggerMiddleware)
server.use(cacheControl())
if (!dev) {
server.use(
limit({
duration: 1000 * 60 * 5, // 5 mins
max: 60,
})
)
}
server.use(async (ctx, next) => {
try {
await next()
} catch (err: any) {
if (401 == err.status) {
ctx.status = 401
ctx.set('WWW-Authenticate', 'Basic')
ctx.body = 'Permission denied'
} else {
throw err
}
}
})
server.use(
compress({
filter: function (contentType) {
return /(text|json|javascript|svg)/.test(contentType)
},
threshold: 2048,
gzip: {
flush: require('zlib').Z_SYNC_FLUSH,
},
})
)
server.use(
serve('./client/assets/public', {
maxage: config.CACHE.PUBLIC_ASSETS * 1000,
})
)
server.use(
proxy({
match: /^\/-\/search/,
host: 'https://www.npmjs.com',
})
)
type Key = {
name: string
version: string
}
router.get(
'/api/size',
jsonCacheMiddleware({
get: (key: Key) => cache.getPackageSize(key),
set: (key: Key, value: string) => cache.setPackageSize(key, value),
hash: (ctx: Context) => ({
name: ctx.state.resolved.name,
version: ctx.state.resolved.version,
}),
}),
errorMiddleware,
resolvePackageMiddleware,
blockBlacklistMiddleware,
cachedResponseMiddleware,
buildMiddleware
)
router.get(
'/api/exports',
errorMiddleware,
resolvePackageMiddleware,
blockBlacklistMiddleware,
exportsMiddlware
)
router.get(
'/api/exports-sizes',
jsonCacheMiddleware({
get: (key: Key) => cache.getExportsSize(key),
set: (key: Key, value: string) => cache.setExportsSize(key, value),
hash: (ctx: Context) => ({
name: ctx.state.resolved.name,
version: ctx.state.resolved.version,
}),
}),
errorMiddleware,
resolvePackageMiddleware,
blockBlacklistMiddleware,
cachedResponseMiddleware,
exportsSizesMiddlware
)
router.get('/api/recent', async ctx => {
try {
ctx.cacheControl = {
maxAge: config.CACHE.RECENTS_API,
}
ctx.body = await firebaseUtils.getRecentSearches(Number(ctx.query.limit))
} catch (err: any) {
console.error('in /api/recent', err)
logger.error('RECENT', err, 'RECENT FAILED: failed')
ctx.status = 422
ctx.body = { type: err.name, message: err.message }
}
})
router.get('/api/package-history', async ctx => {
const { name } = parsePackageString(ctx.query.package)
try {
ctx.cacheControl = {
maxAge: config.CACHE.PACKAGE_HISTORY_API,
}
ctx.body = await firebaseUtils.getPackageHistory(
name,
Number(ctx.query.limit)
)
} catch (err: any) {
console.error(err)
logger.error(
'HISTORY',
err,
'HISTORY FAILED: for package' + ctx.query.package
)
ctx.status = 422
ctx.body = { type: err.name, message: err.message }
}
})
router.get('/api/similar-packages', similarPackagesMiddleware)
router.get('/api/stats-image', generateImgMiddleware)
router.get(
'/admin/restart',
auth({ name: 'bundlephobia', pass: env.basicAuthPassword }),
async (ctx, next) => {
try {
const { stdout, stderr } = await exec.command('pm2 reload all')
ctx.body = 'Server restarted' + stdout
} catch (err) {
console.error('Failed to restart', err)
ctx.status = 500
ctx.body = err
}
}
)
router.post('/admin/restart', async ctx => {
const { name, pass } = <{ name?: string; pass?: string }>ctx.request.body
if (name !== 'bundlephobia' || pass !== env.basicAuthPassword) {
console.error('Failed to restart')
ctx.status = 500
ctx.body = 'Failed to restart'
} else {
const { stdout, stderr } = await exec.command('pm2 reload all')
ctx.body = 'Server restarted' + stdout
console.error(stderr)
}
})
router.get(
'/admin/clear-cache',
auth({ name: 'bundlephobia', pass: env.basicAuthPassword }),
async (ctx, next) => {
try {
const { stdout } = await exec.command(
'rm -rf /tmp/tmp-build/cache/_cacache /tmp/tmp-build/packages/'
)
ctx.body = 'Cache cleared' + stdout
} catch (err) {
console.error('Failed to clear cache', err)
ctx.status = 500
ctx.body = err
}
}
)
router.get('/result', async ctx => {
invariant(ctx.query.p, 'p parameter is required')
const packageString =
typeof ctx.query.p === 'string' ? ctx.query.p : ctx.query.p.join('/')
ctx.redirect(`/package/${packageString.trim()}`)
ctx.status = 301
})
router.get('(.*)', async ctx => {
invariant(ctx.req.url, 'url is missing')
const parsedUrl = parse(ctx.req.url, true)
await handle(ctx.req, ctx.res, parsedUrl)
ctx.respond = false
})
server.use(async (ctx, next) => {
ctx.res.statusCode = 200
await next()
})
server.use(router.routes())
server.listen(port, () => {
console.log(`> Ready on http://localhost:${port}`)
})
})