var originRequest = require('request');

var iconv = require('iconv-lite');

var express = require('express');

var cheerio = require("cheerio");

var bodyParser = require('body-parser');

var app = express();

app.use(express.static("./"));

app.use(bodyParser.json());

app.use(bodyParser.urlencoded({

    extended: true

}));

var headers = {

    'User-Agent': 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_10_1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/39.0.2171.65 Safari/537.36'

}

var url = 'https://voice.baidu.com/act/newpneumonia/newpneumonia';

app.all("*", function (req, res, next) {

    //设置允许跨域的域名，*代表允许任意域名跨域

    res.header("Access-Control-Allow-Origin", "*");

    //允许的header类型

    res.header("Access-Control-Allow-Headers", "content-type");

    //跨域允许的请求方式

    res.header("Access-Control-Allow-Methods", "DELETE,PUT,POST,GET,OPTIONS");

    if (req.method.toLowerCase() == 'options')

        res.send(200); //让options尝试请求快速结束

    else

        next();

})

function Request(url, callback) {

    var options = {

        url: url,

        encoding: null,

        headers: headers

    }

    originRequest(options, callback)

}

app.get("/get", function (request, response) {

  Request(url, function (err, res, body) {

      if (err) {

          console.log(err);

      }

       var html = iconv.decode(body, 'gb2312')

       var $ = cheerio.load(html, {

           decodeEntities: false

       })

      response.json($('#captain-config').html());

    })

});

app.listen(3030, function () {

    console.log('localhost:3030')

});