Equim-chan / csu-ems-api

var app = express();

// 查成绩API，通过GET传入用户名和密码

app.get('/grades', function (req, res, next) {

    if (!req.query.id || !req.query.pwd || (req.query.sem && !(/^20\d{2}-20\d{2}-[1-2]$/).test(req.query.sem))) {

        res.send({ error: "参数不正确" });

        return;

    }

    if (fullLog) {

        var start = new Date();

        console.log((timeStamp() + 'Started to query the grades: ').cyan + req.query.id.yellow);

    }

    access.login(req.query.id, req.query.pwd, res, function (headers, ires) {

        fullLog && console.log((timeStamp() + 'Successfully logged in.').green);

        var ret = {};

        var $ = cheerio.load(ires.text);

        ret.name = escaper.unescape($('.block1text').html()).match(/姓名：.+</)[0].substring(3).replace(/</, '');

        ret.id = req.query.id;

        // 实际上xnxq01id为空的时候和GET这个URL的效果是一样的，都是查询所有学期

        superagent

            .post('http://csujwc.its.csu.edu.cn/jsxsd/kscj/yscjcx_list')

            .set(headers)

            .type('form')

            .send({

                xnxq01id: req.query.sem

            })

            .end(function (err, iires) {

                if (err) {

                    console.log((timeStamp() + 'Failed to get grades page\n' + err.stack).red);

                    res.send({ error: '无法进入成绩页面' });

                    return next(err);

                }

                fullLog && console.log((timeStamp() + 'Successfully entered grades page.').green);

                $ = cheerio.load(iires.text);

                ret.grades = {};

                ret['subject-count'] = 0;

                ret.failed = {};

                ret['failed-count'] = 0;

                // 获取成绩列表，如果有补考记录，则以最高分的为准

                $('#dataList tr').each(function (index) {

                    if (index === 0) {

                        return;

                    }

                    let element = $(this).find('td');

                    let title = escaper.unescape(element.eq(3).text().match(/].+$/)[0].substring(1));

                    let item = {};

                    item.sem = escaper.unescape(element.eq(2).text());

                    item.regular = escaper.unescape(element.eq(4).text());

                    item.exam = escaper.unescape(element.eq(5).text());

                    item.overall = escaper.unescape(element.eq(6).text());

                    if (title in ret.grades) {

                        if (item.overall < ret.grades[title].overall) {

                            return;

                        }

                    }

                    ret.grades[title] = item;

                    ret['subject-count']++;

                    // 暂不考虑NaN，(字符串 < 60)为false

                    if (parseInt(item.overall) < 60) {

                        ret.failed[title] = item;

                        ret['failed-count']++;

                    }

                });

                access.logout(headers, res, function() {

                    // 返回JSON

                    res.send(JSON.stringify(ret));

                    fullLog && console.log((timeStamp() + 'Successfully logged out: ').green + req.query.id.yellow + (' (processed in ' + (new Date() - start) + 'ms)').green);

                });

            });

    });

});

// 查考试API，通过GET传入用户名和密码

app.get('/exams', function (req, res, next) {

});

// 查考试API，通过GET传入用户名和密码

app.get('/exams', function (req, res, next) {

    if (!req.query.id || !req.query.pwd || (req.query.sem && !(/^20\d{2}-20\d{2}-[1-2]$/).test(req.query.sem))) {

        res.send({ error: "参数不正确" });

        return;

    }

    if (fullLog) {

        var start = new Date();

        console.log((timeStamp() + 'Started to query the exams: ').cyan + req.query.id.yellow);

    }

    access.login(req.query.id, req.query.pwd, res, function (headers, ires) {

        fullLog && console.log((timeStamp() + 'Successfully logged in.').green);

        var ret = {};

        var $ = cheerio.load(ires.text);

        ret.name = escaper.unescape($('.block1text').html()).match(/姓名：.+</)[0].replace('<', '').substring(3);

        ret.id = req.query.id;

        ret.sem = req.query.sem || getSem();

        superagent

            .post('http://csujwc.its.csu.edu.cn/jsxsd/xsks/xsksap_list')

            .set(headers)

            .type('form')

            .send({

                xqlbmc: '',

                xnxqid: ret.sem,

                xqlb: ''

            })

            .end(function (err, iires) {

                if (err) {

                    console.log((timeStamp() + 'Failed to reach exams page\n' + err.stack).red);

                    res.send({ error: '获取成绩失败' });

                    return next(err);

                }

                fullLog && console.log((timeStamp() + 'Successfully entered exams page.').green);

                $ = cheerio.load(iires.text);

                ret.exams = {};

                ret['exams-count'] = 0;

                $('#dataList tr').each(function (index) {

                    if (index === 0) {

                        return;

                    }

                    let element = $(this).find('td');

                    let title = escaper.unescape(element.eq(3).text());

                    let item = {};

                    item.time = escaper.unescape(element.eq(4).text());

                    item.location = escaper.unescape(element.eq(5).text());

                    item.seat = escaper.unescape(element.eq(6).text());

                    ret.exams[title] = item;

                    ret['exams-count']++;

                });

                access.logout(headers, res, function() {

                    res.send(JSON.stringify(ret));

                    fullLog && console.log((timeStamp() + 'Successfully logged out: ').green + req.query.id.yellow + (' (processed in ' + (new Date() - start) + 'ms)').green);

                });

            });

    });

});

app.listen(port);

console.log((timeStamp() + 'The server is now running on port ' + port + '.').green);