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1
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var superagent = require('superagent'),
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2
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escaper = require('true-html-escape'),
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3
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colors = require('colors'),
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4
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Date = require('./Date.js');
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5
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6
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const timeStamp = () => new Date().format('[MM-dd hh:mm:ss] ');
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7
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8
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// 直接从主页上扒下来的，哈希算法
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9
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const encodeInp = (input) => {
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10
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let keyStr = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";
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11
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let output = "";
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12
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let chr1, chr2, chr3 = "";
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13
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let enc1, enc2, enc3, enc4 = "";
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14
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let i = 0;
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15
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do {
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16
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chr1 = input.charCodeAt(i++);
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17
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chr2 = input.charCodeAt(i++);
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18
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chr3 = input.charCodeAt(i++);
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19
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enc1 = chr1 >> 2;
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20
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enc2 = ((chr1 & 3) << 4) | (chr2 >> 4);
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21
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enc3 = ((chr2 & 15) << 2) | (chr3 >> 6);
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22
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enc4 = chr3 & 63;
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23
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if (isNaN(chr2)) {
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24
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enc3 = enc4 = 64
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25
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} else if (isNaN(chr3)) {
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26
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enc4 = 64
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27
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}
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28
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output = output + keyStr.charAt(enc1) + keyStr.charAt(enc2) + keyStr.charAt(enc3) + keyStr.charAt(enc4);
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29
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chr1 = chr2 = chr3 = "";
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30
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enc1 = enc2 = enc3 = enc4 = ""
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31
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} while (i < input.length);
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32
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return output;
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33
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};
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34
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35
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// 登出时用到的函数，一样是从原网页扒下来的
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36
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const getRandomUrl = (htmlurl) => {
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37
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let count = htmlurl.indexOf("?");
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38
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let date = new Date();
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39
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let t = Date.parse(date);
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40
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if (count < 0) {
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41
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htmlurl = htmlurl + "?tktime=" + t;
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42
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} else {
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43
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htmlurl = htmlurl + "&tktime=" + t;
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44
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}
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45
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return htmlurl;
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46
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}
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47
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48
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// 登录模块
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49
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const login = (id, pwd, res, callback) => {
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50
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// 通过GET首页，来获取cookie
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51
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superagent.get('http://csujwc.its.csu.edu.cn/jsxsd')
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52
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.end(function (err, ires) {
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53
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if (err) {
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54
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console.log((timeStamp() + 'Failed to get the Cookie.\n' + err.stack).red);
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55
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res.send({ error: '获取Cookie失败' });
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56
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return;
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57
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}
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58
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59
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// 登录POST请求的headers，是我抓包来的
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60
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let headers = {
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61
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Host: 'csujwc.its.csu.edu.cn',
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62
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Connection: 'keep-alive',
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63
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'Cache-Control': 'max-age=0',
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64
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Accept: 'text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8',
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65
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Origin: 'http://csujwc.its.csu.edu.cn',
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66
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'Upgrade-Insecure-Requests': 1,
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67
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'User-Agent': 'Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/55.0.2883.87 Safari/537.36',
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68
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'Content-Type': 'application/x-www-form-urlencoded',
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69
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Referer: 'http://csujwc.its.csu.edu.cn/jsxsd/',
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70
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'Accept-Encoding': 'gzip, deflate',
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71
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'Accept-Language': 'zh-CN,zh;q=0.8',
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72
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Cookie: ires.headers['set-cookie'] // 猜测：感觉这个cookie也是不变的，不过出于稳定性，还是动态获取了
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73
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}
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74
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75
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let account = encodeInp(id);
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76
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let passwd = encodeInp(pwd);
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77
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let encoded = escaper.escape(account + "%%%" + passwd);
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78
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79
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// POST登录
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80
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superagent.post('http://csujwc.its.csu.edu.cn/jsxsd/xk/LoginToXk')
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81
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.set(headers)
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82
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.type('form')
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83
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.send({ encoded: encoded })
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84
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.end(function (err, iires) {
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85
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// 如果登录信息正确，这里是对http://csujwc.its.csu.edu.cn/jsxsd/framework/xsMain.jsp的GET请求
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86
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// 如果错误，会变成对http://csujwc.its.csu.edu.cn/jsxsd/xk/LoginToXk的POST请求
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87
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if (err || /POST/i.test(iires.req.method)) {
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88
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console.log((timeStamp() + 'Fail to login\n' + (err ? err.stack : 'Possibily id or password provided were wrong')).red);
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89
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res.send({ error: '登录失败，可能是用户名或密码错误' });
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90
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return;
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91
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}
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92
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93
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// 将相应的headers和返回的response（刚进去的首页）传入callback
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94
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callback(headers, iires);
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95
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});
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96
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});
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|
97
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};
|
|
98
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|
99
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// 登出模块
|
|
100
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const logout = (headers, res, callback) => {
|
|
101
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superagent.get(getRandomUrl('http://csujwc.its.csu.edu.cn/jsxsd/xk/LoginToXk?method=exit'))
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|
102
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.set(headers)
|
|
103
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.end(function (err, ires) {
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|
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104
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if (err) {
|
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105
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console.log((timeStamp() + 'Fail to logout\n' + err.stack).red);
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|
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|
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106
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res.send({ error: '操作失败' });
|
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107
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return;
|
|
108
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}
|
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109
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callback();
|
|
110
|
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});
|
|
111
|
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};
|
|
112
|
|
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|
|
113
|
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module.exports.login = login;
|
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114
|
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module.exports.logout = logout; |
Equim-chan /
csu-ems-api
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