app-server.js

'use strict'

var koa = require('koa')
var app = koa()
app.proxy = true

var http = require('http')
var https = require('https')

var fs = require('fs')

var co = require('co')
var session = require('koa-session')
var compose = require('koa-compose')
var body = require('koa-body')

// var enforceHttps = require('koa-sslify')

var config = require('./config')
var modules = require('./modules')
var routers = require('./routers')
var service = require('./service')

// 服务器启动时的初始状态检查
var statusCheck = require('./modules/tools/statusCheck.js')

// session config
var CONFIG = {
  key: 'koa:sess', /** (string) cookie key (default is koa:sess) */
  maxAge: 86400000, /** (number) maxAge in ms (default is 1 days) */
  overwrite: true, /** (boolean) can overwrite or not (default true) */
  httpOnly: true, /** (boolean) httpOnly or not (default true) */
  signed: true, /** (boolean) signed or not (default true) */
}

// https option
var options = {
  key: fs.readFileSync('keys/server.key'),
  cert: fs.readFileSync('keys/server.crt'),
  port: 8081
}

module.exports = function () {
  Promise.all([

    co(statusCheck)

  ]).then([

    co(start)

  ]).catch(function (e) {
    console.log('err:' + e.stack)
  })
}

function * start () {
  var ver = require('./package.json').version

  var mw = compose([
    /** force to redirect to https on all pages */
    // enforceHttps(options),
    /** control internal error */
    service['500'],
    /** send response time to browser */
    modules.timer(),
    /** send version of server to browser */
    modules.version(ver),
    /** init session storage */
    session(CONFIG, app),
    /** init local route */
    routers.start(),
    /** handle all 404 errors */
    service['404']
  ])

  app.use(body())
  app.use(modules.urlFilter(mw))

  // app.use(service['404'])

  // app.listen(config.serverPort)

  // http server
  if (config.env === 'prd') {
    http.createServer(app.callback()).listen(config.serverPort, function () {
      // console.log('server http on ' + config.serverPort)
      console.log(`server: http://${config.ip}:${config.serverPort}`)
    })
  }

  if (config.env === 'dev') {
    // https
    https.createServer(options, app.callback()).listen(config.serverPorts, function () {
      // console.log('server https on ' + config.serverPorts)
      console.log(`server: https://${config.ip}:${config.serverPorts}`)
    })
  }

  app.on('error', function (err, ctx) {
    console.log('err:' + err.stack)
  })
}