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182 lines
7.7 KiB
182 lines
7.7 KiB
import {Inject, Singleton} from '../di'
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import {HTTPStatus, universalPath, UniversalPath, withTimeout} from '../util'
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import {Unit} from '../lifecycle/Unit'
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import {createServer, IncomingMessage, RequestListener, Server, ServerResponse} from 'http'
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import {Logging} from './Logging'
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import {Request} from '../http/lifecycle/Request'
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import {HTTPKernel} from '../http/kernel/HTTPKernel'
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import {PoweredByHeaderInjectionHTTPModule} from '../http/kernel/module/PoweredByHeaderInjectionHTTPModule'
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import {SetSessionCookieHTTPModule} from '../http/kernel/module/SetSessionCookieHTTPModule'
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import {InjectSessionHTTPModule} from '../http/kernel/module/InjectSessionHTTPModule'
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import {PersistSessionHTTPModule} from '../http/kernel/module/PersistSessionHTTPModule'
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import {MountActivatedRouteHTTPModule} from '../http/kernel/module/MountActivatedRouteHTTPModule'
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import {ExecuteResolvedRouteHandlerHTTPModule} from '../http/kernel/module/ExecuteResolvedRouteHandlerHTTPModule'
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import {error} from '../http/response/ErrorResponseFactory'
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import {ExecuteResolvedRoutePreflightHTTPModule} from '../http/kernel/module/ExecuteResolvedRoutePreflightHTTPModule'
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import {ExecuteResolvedRoutePostflightHTTPModule} from '../http/kernel/module/ExecuteResolvedRoutePostflightHTTPModule'
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import {ParseIncomingBodyHTTPModule} from '../http/kernel/module/ParseIncomingBodyHTTPModule'
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import {Config} from './Config'
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import {InjectRequestEventBusHTTPModule} from '../http/kernel/module/InjectRequestEventBusHTTPModule'
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import {Routing} from './Routing'
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import {Route} from '../http/routing/Route'
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import {staticServer} from '../http/servers/static'
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import {EventBus} from '../event/EventBus'
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import {PackageDiscovered} from '../support/PackageDiscovered'
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/**
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* Application unit that starts the HTTP/S server, creates Request and Response objects
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* for it, and handles those requests using the HTTPKernel.
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*/
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@Singleton()
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export class HTTPServer extends Unit {
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@Inject()
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protected readonly logging!: Logging
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@Inject()
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protected readonly config!: Config
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@Inject()
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protected readonly kernel!: HTTPKernel
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@Inject()
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protected readonly routing!: Routing
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@Inject()
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protected readonly bus!: EventBus
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/** The underlying native Node.js server. */
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protected server?: Server
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/**
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* Register an asset directory for the given package.
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* This creates a static server route for the package with the
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* configured vendor prefix.
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* @param packageName
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* @param basePath
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*/
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public async registerVendorAssets(packageName: string, basePath: UniversalPath): Promise<void> {
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if ( this.config.get('server.builtIns.vendor.enabled', true) ) {
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this.logging.debug(`Registering vendor assets route for package ${packageName} on ${basePath}...`)
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await this.routing.registerRoutes(() => {
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const prefix = this.config.get('server.builtIns.vendor.prefix', '/vendor')
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Route.group(prefix, () => {
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Route.group(packageName, () => {
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Route.get('/**', staticServer({
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basePath,
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directoryListing: false,
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}))
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})
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})
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})
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}
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}
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public async up(): Promise<void> {
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const port = this.config.get('server.port', 8000)
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// TODO register these by config
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PoweredByHeaderInjectionHTTPModule.register(this.kernel)
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SetSessionCookieHTTPModule.register(this.kernel)
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InjectSessionHTTPModule.register(this.kernel)
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PersistSessionHTTPModule.register(this.kernel)
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MountActivatedRouteHTTPModule.register(this.kernel)
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ExecuteResolvedRouteHandlerHTTPModule.register(this.kernel)
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ExecuteResolvedRoutePreflightHTTPModule.register(this.kernel)
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ExecuteResolvedRoutePostflightHTTPModule.register(this.kernel)
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ParseIncomingBodyHTTPModule.register(this.kernel)
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InjectRequestEventBusHTTPModule.register(this.kernel)
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await this.registerBuiltIns()
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await new Promise<void>(res => {
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this.server = createServer(this.handler)
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this.server.listen(port, () => {
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this.logging.success(`Server listening on port ${port}. Press ^C to stop.`)
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})
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process.on('SIGINT', res)
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})
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}
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public async down(): Promise<void> {
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if ( this.server ) {
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this.server.close(err => {
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if ( err ) {
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this.logging.error(`Error encountered while closing HTTP server: ${err.message}`)
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this.logging.debug(err)
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}
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})
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}
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}
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public get handler(): RequestListener {
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const timeout = this.config.get('server.timeout', 10000)
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return async (request: IncomingMessage, response: ServerResponse) => {
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const extolloReq = new Request(request, response)
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withTimeout(timeout, extolloReq.response.sent$.toPromise())
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.onTime(() => {
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this.logging.verbose(`Request lifecycle finished on time. (Path: ${extolloReq.path})`)
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})
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.late(() => {
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if ( !extolloReq.bypassTimeout ) {
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this.logging.warn(`Request lifecycle finished late, so an error response was returned! (Path: ${extolloReq.path})`)
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}
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})
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.timeout(() => {
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if ( extolloReq.bypassTimeout ) {
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this.logging.info(`Request lifecycle has timed out, but bypassRequest was set. (Path: ${extolloReq.path})`)
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return
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}
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this.logging.error(`Request lifecycle has timed out. Will send error response instead. (Path: ${extolloReq.path})`)
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extolloReq.response.setStatus(HTTPStatus.REQUEST_TIMEOUT)
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extolloReq.response.body = 'Sorry, your request timed out.'
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extolloReq.response.send()
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})
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.run()
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.catch(e => this.logging.error(e))
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try {
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await this.kernel.handle(extolloReq)
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} catch (e) {
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await error(e).write(extolloReq)
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}
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await extolloReq.response.send()
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}
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}
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/** Register built-in servers and routes. */
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protected async registerBuiltIns(): Promise<void> {
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const extolloAssets = universalPath(__dirname, '..', 'resources', 'assets')
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await this.registerVendorAssets('@extollo/lib', extolloAssets)
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this.bus.subscribe(PackageDiscovered, async (event: PackageDiscovered) => {
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if ( event.packageConfig?.extollo?.assets?.discover && event.packageConfig.name ) {
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this.logging.debug(`Registering vendor assets for discovered package: ${event.packageConfig.name}`)
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const basePath = event.packageConfig?.extollo?.assets?.basePath
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if ( basePath && Array.isArray(basePath) ) {
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const assetPath = event.packageJson.concat('..', ...basePath)
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await this.registerVendorAssets(event.packageConfig.name, assetPath)
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}
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}
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})
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if ( this.config.get('server.builtIns.assets.enabled', true) ) {
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const prefix = this.config.get('server.builtIns.assets.prefix', '/assets')
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this.logging.debug(`Registering built-in assets server with prefix: ${prefix}`)
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await this.routing.registerRoutes(() => {
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Route.group(prefix, () => {
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Route.get('/**', staticServer({
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directoryListing: false,
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basePath: ['resources', 'assets'],
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}))
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})
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})
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}
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}
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}
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