app.js

const Koa = require('koa')
const app = new Koa()
const path = require('path')
const views = require('koa-views')
const json = require('koa-json')
const onerror = require('koa-onerror')
const bodyparser = require('koa-bodyparser')
const logger = require('koa-logger')
const session = require('koa-session')
const log4js = require('./logs/log4js_config')
const passport = require('./config/passport_config')
const favicon = require('koa-favicon')

const index = require('./routes/index')
const authcheck = require('./routes/authcheck')
const user = require('./routes/user')
const notice = require('./routes/notice')
const department = require('./routes/department')
const drug = require('./routes/drug')
const record = require('./routes/record')
const charge = require('./routes/charge')
const income = require('./routes/income')
const outpatient = require('./routes/outpatient')
const feedback = require('./routes/feedback')
const errorhandle = require('./middlewares/errorhandle')
const cors = require('koa2-cors')

// cors跨域处理
app.use(
  cors({
    origin: function (ctx) {
      // 设置允许来自指定域名请求
      /* if (ctx.url === '/api/test') {
        return '*' // 允许来自所有域名请求
      } */
      // http://localhost:3001 开发环境
      // http://localhost:4173 生产环境
      const whiteList = ['http://localhost:4173', 'http://localhost:8081'] //可跨域白名单
      let referer = String(ctx.header.referer)
      let url = referer.slice(0, referer.length - 1)
      if (whiteList.includes(url)) {
        return url
      }
      // 默认只允许http://localhost:3001这个域名的请求
      return 'http://localhost:3001'
    },
    maxAge: 5, //指定本次预检请求的有效期，单位为秒。
    credentials: true, //是否允许发送Cookie
    allowMethods: ['GET', 'POST', 'PUT', 'DELETE', 'OPTIONS'], //设置所允许的HTTP请求方法
    allowHeaders: ['Content-Type', 'Authorization', 'Accept'], //设置服务器支持的所有头信息字段
    exposeHeaders: ['WWW-Authenticate', 'Server-Authorization'], //设置获取其他自定义字段
  })
)

// 加载favicon.ico
app.use(favicon(__dirname + '/public/image/maria_favicon.ico'))

// session配置
const sessionConfig = {
  key: 'koa:sess', // cookie key (默认koa：sess)
  maxAge: 86400000, // cookie的过期时间,毫秒，默认为1天
  overwrite: true, // 是否覆盖    (默认default true)
  httpOnly: false, // cookie是否只有服务器端可以访问,默认为true
  signed: true, // 签名默认true
  rolling: false, // 在每次请求时强行设置cookie，这将重置cookie过期时间（默认：false）
  renew: false, // (boolean) 会话即将到期时,续订会话
}
// 使用session
app.keys = ['secret']
app.use(session(sessionConfig, app))

// error handler
onerror(app)

// middlewares
app.use(
  bodyparser({
    enableTypes: ['json', 'form', 'text'],
  })
)
app.use(json())
app.use(logger())
app.use(require('koa-static')(__dirname + '/public'))

// ejs
app.use(
  views(path.join(__dirname, 'views'), {
    map: { html: 'ejs' },
  })
)

// logger
app.use(async (ctx, next) => {
  const start = new Date()
  await next()
  const ms = new Date() - start
  console.log(`${ctx.method} ${ctx.url} - ${ms}ms`)
  log4js.resLogger(ctx, ms)
})

// koa-passport
app.use(passport.initialize())
app.use(passport.session())

// routes
app.use(index.routes(), index.allowedMethods())
app.use(authcheck.routes(), authcheck.allowedMethods())
app.use(user.routes(), user.allowedMethods())
app.use(notice.routes(), notice.allowedMethods())
app.use(department.routes(), department.allowedMethods())
app.use(drug.routes(), drug.allowedMethods())
app.use(record.routes(), record.allowedMethods())
app.use(charge.routes(), charge.allowedMethods())
app.use(income.routes(), income.allowedMethods())
app.use(outpatient.routes(), outpatient.allowedMethods())
app.use(feedback.routes(), feedback.allowedMethods())
app.use(errorhandle)

// error-handling
app.on('error', (err, ctx) => {
  log4js.errLogger(ctx, err)
  console.error('server error', err, ctx)
})

module.exports = app