chat-server/qq-imsvr/node_modules/koa-cors/examples/basic-auth-and-cors.js

/**
 * Basic Auth and CORS
 *
 */
var auth = require('koa-basic-auth');
var cors = require('koa-cors');
var koa = require('koa');
var app = koa();

// cors
app.use(cors());

// custom 401 handling
app.use(function *(next){
  try {
    yield next;
  } catch (err) {
    if (401 == err.status) {
      this.status = 401;
      this.set('WWW-Authenticate', 'Basic');
      this.body = 'cant haz that';
    } else {
      throw err;
    }
  }
});

// require auth
app.use(auth({ name: 'tj', pass: 'tobi' }));

// secret response
app.use(function *(){
  this.body = 'secret';
});

app.listen(3000);
console.log('listening on port 3000');