jaune-web

###* * @file Source code Koa application * @author Alvaro Juste ### 'use strict' # 3rd lodash = require 'lodash' {extend} = lodash I18n = require 'i18next' koa = require 'koa' http = require 'http' Https = require 'https' # jaune {evaluateName} = require('jaune-util').Reflection register = require '../context' # constants AppName = 'appName' ConfigHttpSection = 'jaune.http' ConfigInitSection = 'jaune.init' ConfigLocaleSection = 'jaune.locale' ConfigErrorSection = 'jaune.error' EnvType = 'type' EnvTypeDev = 'development' ###* * @class Represents the server. Handles initialization and finalize. * @param {Object} configuration Configuration ### class KoaServer constructor: (@env, @engine) -> @httpSettings = @env.getEnvProperty ConfigHttpSection @initSettings = @env.getEnvProperty ConfigInitSection @localeSettings = @env.getEnvProperty ConfigLocaleSection @errorSettings = @env.getEnvProperty ConfigErrorSection @app = koa() ###* * @function Set up session ### setupSession: -> enabled = store = storeArgs = null if @httpSettings?.session? {enabled, store, storeArgs} = @httpSettings?.session return unless enabled is yes @app.use evaluateName store, storeArgs, store.context, {@app} ###* * @function Set up static resource serving ### setupStatic: -> {enabled, path, maxAge} = @httpSettings.static if @httpSettings?.static? return unless enabled is yes send = require 'koa-send' @app.use -> yield send this, @path, {maxAge, root: path} ###* * @function Set up logger ### setupLogger: -> return unless @env.getProcessProperty(EnvType) isnt EnvTypeDev @app.use require('koa-logger')() ###* * @function Set up custom middlewares ### setupMiddlewares: -> @app.use register.coreMiddleware @app, @engine return unless @initSettings?.middlewares? @initSettings.middlewares @app, @engine ###* * @function Set up post middlewares ### setupPostMiddlewares: -> return unless @initSettings?.postMiddlewares? @initSettings.postMiddlewares @app, @engine ###* * @function Set up body parse ### setupBody: -> parse = multipart = strict = uploadPath = null if @httpSettings?.body? {parse, multipart, strict, uploadPath} = @httpSettings.body return unless parse koaBody = require 'koa-body' settings = {multipart, strict} if multipart and uploadPath extend settings, formidable: uploadDir: uploadPath @app.use koaBody settings ###* * @function Set up sockets ### setupSockets: -> {sockets} = @httpSettings if @httpSettings? return unless sockets #needs to be installed by client @engine.sockets = new (require('koa-socket'))() @engine.sockets.attach @app ###* * @function Set up web serving ### setupWeb: -> {enabled, html, https} = @httpSettings.web if @httpSettings?.web? return unless enabled {engine, args, context} = html if html? if html? @app.use evaluateName engine, args, context, {@app} ###* * @function Set up http serving ### setupHttp: -> return unless @httpSettings? {port, https} = @httpSettings appName = @env.getEnvProperty AppName port = parseInt port ? 3000, 10 if https? {key, cert} = https @app.server = Https.createServer {key, cert}, @app.callback() else @app.server = http.createServer @app.callback() @app.server.listen port, -> console.log "#{appName} web server started" ###* * @function Set up internazionalization ### setupI18n: -> {enabled} = @httpSettings.i18n if @httpSettings?.i18n? return unless enabled is yes koaLocale = require 'koa-locale' httpUtil = @engine.Http.Util localeManager = @engine.Locale.Manager koaLocale @app @app.use (next) -> locale = @getLocaleFromQuery() ? @getLocaleFromCookie() ? @getLocaleFromHeader() ? localeManager.getDefaultCountry() if locale? locale = yield localeManager.setLocale locale @session.locale = locale if @session @locale = locale httpUtil.setCookieValue this, 'locale', locale.locale, '1year' yield next I18n.init @localeSettings ###* * @function Set up routing ### setupRouting: -> {webRoutes} = @initSettings if @initSettings? return unless webRoutes? @app.use require('koa-routing')(@app) webRoutes @app, @engine ###* * @function Set up routing ### initDaemons: -> return unless @initSettings?.initDeamons? @initSettings.initDeamons() ###* * @function extendNamespace ### extendNamespace: -> return unless @initSettings?.extendNamespace? @initSettings.extendNamespace @engine ###* * @function Sets up error handling ### setupErrorHandling: -> customErrorHandling = @errorSettings?.listener env = @env @app.use (next) -> try yield next catch error return if customErrorHandling? and yield customErrorHandling error, this yield handleError this, env, error ###* * @function Sets up modules to be used by the server. ### setup: -> @app.keys = ["some secret hurr"] # TODO: make it configurable @extendNamespace() @setupMiddlewares() @setupErrorHandling() @setupLogger() @setupSession() @setupI18n() @setupBody() @setupHttp() @setupSockets() @setupWeb() @setupPostMiddlewares() @setupRouting() @setupStatic() @app.use register.respondersMiddleware @app, @engine @initDaemons @app, @engine handleError = (ctx, env, err) -> if env.getProcessProperty(EnvType) is EnvTypeDev console.log err if err.stack stack = err .stack .replace /^[^\(]+?[\n$]/gm, '' .replace /^\s+at\s+/gm, '' .replace /^Object.<anonymous>\s*\(/gm, '{anonymous}()@' .split '\n' console.log stack switch ctx.accepts 'html', 'json' when 'json' then yield ctx.jaune.responder.json.sendError err when 'html' then yield ctx.jaune.responder.page.sendError err else yield ctx.jaune.responder.http.error err module.exports = App: KoaServer