Issues in app.js - Fixed Issues - Inspection of "增加对process.env.PORT的支持以便部署" - Equim-chan/csu-ems-api - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( 2a41ae...0009c9 )

by Equim

created 2017-01-18 20:13 UTC

app.js (7 issues)

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/* TODO
 * 完善异常处理
 * 建立用户名-Cookie数据库
 */

'use strict';

var express    = require('express'),
    superagent = require('superagent'),
    cheerio    = require('cheerio'),
    escaper    = require('true-html-escape'),
    colors     = require('colors'),
    program    = require('commander'),
    Date       = require('./lib/Date.js'),

    access     = require('./lib/access.js');

program
    .option('-h, --help')
    .option('-v, --version')
    .option('-p, --port [n]', parseInt)

    .option('-f, --fullLog')
    .parse(process.argv);

// 别问我为什么这里逻辑这么奇怪……测试的结果确实是这样的啊hhh
if (!program.help || !program.version) {
    console.log(('CSUEMS API v2.1.2').rainbow);
    console.log(('by The Liberators').rainbow);
    if (!program.help) {
        console.log('Preparation:');
        console.log('  \\\\This section is WIP\\\\');
        console.log('\nUsage:');
        console.log('  npm start [-- <options...>]');
        console.log('\nOptions:');
        console.log('  -h, --help          print this message and exit.');
        console.log('  -v, --version       print the version and exit.');
        console.log('  -f, --fullLog       enable full log, by default only errors are logged.');
        console.log('  -p, --port [value]  specify a port to listen, 2333 by default.');
        console.log('\nExamples:');
        console.log('  $ npm start -p 43715                  # listening to 43715');
        console.log('  $ forever start app.js                # deploy with forever as daemon (root access recommended)');
        console.log('  $ pm2 start -i 0 -n "csuapi" app.js   # deploy with pm2 as daemon  (root access recommended)');
    }
    process.exit(0);

}

const timeStamp = () => new Date().format('[MM-dd hh:mm:ss]'),
      // 以系统时间获取当前学期
      getSem = () => {
          let now = new Date();
          let month = now.getMonth();
          let year = now.getFullYear();
          if (month === 0) {
              return (year - 1) + '-' + year + '-1';
          } else if (month <= 6) {
              return (year - 1) + '-' + year + '-2';
          } else {
              return year + '-' + (year + 1) + '-1';
          }
      },
      port = program.port || 2333,
      fullLog = program.fullLog;

var app = express();

// 查成绩API，通过GET传入用户名和密码
app.get(/\/[grades|g]$/, function (req, res, next) {
    if (!req.query.id || !req.query.pwd || (req.query.sem && !(/^20\d{2}-20\d{2}-[1-2]$/).test(req.query.sem))) {
        res.status(404).send({ error: "参数不正确" });
        return;
    }
    if (fullLog) {
        var start = new Date();
        console.log(`${timeStamp()} Started to query the grades: `.cyan + req.query.id.yellow);
    }
    access.login(req.query.id, req.query.pwd, res, function (headers) {
        if (fullLog) {
            console.log(`${timeStamp()} Successfully logged in.`.green);
        }

        // 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.status(404).send({ error: '无法进入成绩页面' });
                    return next(err);
                }
                if (fullLog) {
                    console.log(`${timeStamp()} Successfully entered grades page.`.green);
                }

                let $ = cheerio.load(iires.text);

                let result = {
                    name: escaper.unescape($('#Top1_divLoginName').text().match(/\s.+\(/)[0].replace(/\s|\(/g, '')),
                    id: escaper.unescape($('#Top1_divLoginName').text().match(/\(.+\)/)[0].replace(/\(|\)/g, '')),
                    grades: {},
                    'subject-count': 0,
                    failed: {},
                    'failed-count': 0,
                };

                // 获取成绩列表
                $('#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 = {
                        sem: escaper.unescape(element.eq(2).text()),
                        reg: escaper.unescape(element.eq(4).text()),
                        exam: escaper.unescape(element.eq(5).text()),
                        overall: escaper.unescape(element.eq(6).text())
                    };
                    if (req.query.details) {
                        item.id = escaper.unescape(element.eq(3).text().match(/\[.+\]/)[0].replace(/\[|\]/g, ''));
                        item.attr = escaper.unescape(element.eq(8).text());
                        item.genre = escaper.unescape(element.eq(9).text());
                        item.credit = escaper.unescape(element.eq(7).text());
                    }

                    // 如果有补考记录，则以最高分的为准
                    if (title in result.grades) {
                        // 暂不考虑NaN
                        if (item.overall < result.grades[title].overall) {
                            return;
                        }
                        if (!element.eq(6).css('color')) {
                            delete result.failed[title];
                        }
                    } else if (element.eq(6).css('color')) {
                        result.failed[title] = item;
                    }

                    result.grades[title] = item;
                });

                result['subject-count'] = Object.keys(result.grades).length;
                result['failed-count'] = Object.keys(result.failed).length;

                access.logout(headers, res, function() {
                    // 返回JSON
                    res.send(JSON.stringify(result));
                    if (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|e]$/, function (req, res, next) {
    if (!req.query.id || !req.query.pwd || (req.query.sem && !(/^20\d{2}-20\d{2}-[1-2]$/).test(req.query.sem))) {
        res.status(404).send({ error: "参数不正确" });
        return;
    }
    if (fullLog) {
        var start = new Date();
        console.log(`${timeStamp()} Started to query the exams: `.cyan + req.query.id.yellow);
    }
    access.login(req.query.id, req.query.pwd, res, function (headers) {
        if (fullLog) {
            console.log(`${timeStamp()} Successfully logged in.`.green);
        }

        superagent
            .post('http://csujwc.its.csu.edu.cn/jsxsd/xsks/xsksap_list')
            .set(headers)
            .type('form')
            .send({
                xqlbmc: '',
                xnxqid: req.query.sem || getSem(),
                xqlb: ''
            })
            .end(function (err, iires) {
                if (err) {
                    console.log(`${timeStamp()} Failed to reach exams page\n${err.stack}`.red);
                    res.status(404).send({ error: '获取成绩失败' });
                    return next(err);
                }
                if (fullLog) {
                    console.log(`${timeStamp()} Successfully entered exams page.`.green);
                }

                let $ = cheerio.load(iires.text);

                let result = {
                    name: escaper.unescape($('#Top1_divLoginName').text().match(/\s.+\(/)[0].replace(/\s|\(/g, '')),
                    id: escaper.unescape($('#Top1_divLoginName').text().match(/\(.+\)/)[0].replace(/\(|\)/g, '')),
                    sem: req.query.sem || getSem(),
                    exams: {},
                    '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 = {
                        time: escaper.unescape(element.eq(4).text()),
                        location: escaper.unescape(element.eq(5).text()),
                        seat: escaper.unescape(element.eq(6).text())
                    };

                    result.exams[title] = item;
                    result['exams-count']++;
                });

                access.logout(headers, res, function() {
                    res.send(JSON.stringify(result));
                    if (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 API is now running on port ${port}. Full logging is ${fullLog ? 'enabled' : 'disabled'}`.green);

1		/* TODO
2		* 完善异常处理
3		* 建立用户名-Cookie数据库
4		*/
5
6		'use strict';
7
8		var express = require('express'),
9		superagent = require('superagent'),
10		cheerio = require('cheerio'),
11		escaper = require('true-html-escape'),
12		colors = require('colors'),
13		program = require('commander'),
14		Date = require('./lib/Date.js'),
		0 ignored issues – show Comprehensibility introduced 2017-01-10 09:20 UTC by Report Bug Copy Issue Report Show Similar Issues like this You are shadowing the built-in type `Date`. This makes code hard to read, consider using a different name. Loading history...
15		access = require('./lib/access.js');
16
17		program
18		.option('-h, --help')
19		.option('-v, --version')
20		.option('-p, --port [n]', parseInt)
		0 ignored issues – show Bug introduced 2017-01-10 09:20 UTC by Report Bug Copy Issue Report Show Similar Issues like this The variable `parseInt` seems to be never declared. If this is a global, consider adding a `/** global: parseInt */` comment. This checks looks for references to variables that have not been declared. This is most likey a typographical error or a variable has been renamed. To learn more about declaring variables in Javascript, see the MDN. Loading history...
21		.option('-f, --fullLog')
22		.parse(process.argv);
23
24		// 别问我为什么这里逻辑这么奇怪……测试的结果确实是这样的啊hhh
25		if (!program.help \|\| !program.version) {
26		console.log(('CSUEMS API v2.1.2').rainbow);
27		console.log(('by The Liberators').rainbow);
28		if (!program.help) {
29		console.log('Preparation:');
30		console.log(' \\\\This section is WIP\\\\');
31		console.log('\nUsage:');
32		console.log(' npm start [-- <options...>]');
33		console.log('\nOptions:');
34		console.log(' -h, --help print this message and exit.');
35		console.log(' -v, --version print the version and exit.');
36		console.log(' -f, --fullLog enable full log, by default only errors are logged.');
37		console.log(' -p, --port [value] specify a port to listen, 2333 by default.');
38		console.log('\nExamples:');
39		console.log(' $ npm start -p 43715 # listening to 43715');
40		console.log(' $ forever start app.js # deploy with forever as daemon (root access recommended)');
41		console.log(' $ pm2 start -i 0 -n "csuapi" app.js # deploy with pm2 as daemon (root access recommended)');
42		}
43		process.exit(0);
		1 ignored issue – show Compatibility Debugging Code Best Practice introduced 2017-01-10 09:20 UTC by Report Bug Copy Issue Report Show Similar Issues like this Use of `process.exit()` is discouraged as it will potentially stop the complete node.js application. Consider quitting gracefully instead by throwing an Error. Loading history...
44		}
45
46		const timeStamp = () => new Date().format('[MM-dd hh:mm:ss]'),
47		// 以系统时间获取当前学期
48		getSem = () => {
49		let now = new Date();
50		let month = now.getMonth();
51		let year = now.getFullYear();
52		if (month === 0) {
53		return (year - 1) + '-' + year + '-1';
54		} else if (month <= 6) {
55		return (year - 1) + '-' + year + '-2';
56		} else {
57		return year + '-' + (year + 1) + '-1';
58		}
59		},
60		port = program.port \|\| 2333,
61		fullLog = program.fullLog;
62
63		var app = express();
64
65		// 查成绩API，通过GET传入用户名和密码
66		app.get(/\/[grades\|g]$/, function (req, res, next) {
67		if (!req.query.id \|\| !req.query.pwd \|\| (req.query.sem && !(/^20\d{2}-20\d{2}-[1-2]$/).test(req.query.sem))) {
68		res.status(404).send({ error: "参数不正确" });
69		return;
70		}
71		if (fullLog) {
72		var start = new Date();
73		console.log(`${timeStamp()} Started to query the grades: `.cyan + req.query.id.yellow);
74		}
75	View Code Duplication	access.login(req.query.id, req.query.pwd, res, function (headers) {
76		if (fullLog) {
77		console.log(`${timeStamp()} Successfully logged in.`.green);
78		}
79
80		// 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
81		superagent
82		.post('http://csujwc.its.csu.edu.cn/jsxsd/kscj/yscjcx_list')
83		.set(headers)
84		.type('form')
85		.send({
86		xnxq01id: req.query.sem
87		})
88		.end(function (err, iires) {
89		if (err) {
90		console.log(`${timeStamp()} Failed to get grades page\n${err.stack}`.red);
91		res.status(404).send({ error: '无法进入成绩页面' });
92		return next(err);
93		}
94		if (fullLog) {
95		console.log(`${timeStamp()} Successfully entered grades page.`.green);
96		}
97
98		let $ = cheerio.load(iires.text);
99
100		let result = {
101		name: escaper.unescape($('#Top1_divLoginName').text().match(/\s.+\(/)[0].replace(/\s\|\(/g, '')),
102		id: escaper.unescape($('#Top1_divLoginName').text().match(/\(.+\)/)[0].replace(/\(\|\)/g, '')),
103		grades: {},
104		'subject-count': 0,
105		failed: {},
106		'failed-count': 0,
107		};
108
109		// 获取成绩列表
110		$('#dataList tr').each(function (index) {
111		if (index === 0) {
112		return;
113		}
114		let element = $(this).find('td');
115		let title = escaper.unescape(element.eq(3).text().match(/].+$/)[0].substring(1));
116
117		let item = {
118		sem: escaper.unescape(element.eq(2).text()),
119		reg: escaper.unescape(element.eq(4).text()),
120		exam: escaper.unescape(element.eq(5).text()),
121		overall: escaper.unescape(element.eq(6).text())
122		};
123		if (req.query.details) {
124		item.id = escaper.unescape(element.eq(3).text().match(/\[.+\]/)[0].replace(/\[\|\]/g, ''));
125		item.attr = escaper.unescape(element.eq(8).text());
126		item.genre = escaper.unescape(element.eq(9).text());
127		item.credit = escaper.unescape(element.eq(7).text());
128		}
129
130		// 如果有补考记录，则以最高分的为准
131		if (title in result.grades) {
132		// 暂不考虑NaN
133		if (item.overall < result.grades[title].overall) {
134		return;
135		}
136		if (!element.eq(6).css('color')) {
137		delete result.failed[title];
138		}
139		} else if (element.eq(6).css('color')) {
140		result.failed[title] = item;
141		}
142
143		result.grades[title] = item;
144		});
145
146		result['subject-count'] = Object.keys(result.grades).length;
147		result['failed-count'] = Object.keys(result.failed).length;
148
149		access.logout(headers, res, function() {
150		// 返回JSON
151		res.send(JSON.stringify(result));
152		if (fullLog) {
153		console.log(`${timeStamp()} Successfully logged out: `.green +
154		req.query.id.yellow +
155		` (processed in ${new Date() - start} ms)`.green);
		0 ignored issues – show Bug introduced 2017-01-18 03:13 UTC by Report Bug Copy Issue Report Show Similar Issues like this The variable `start` does not seem to be initialized in case `fullLog` on line `71` is `false`. Are you sure this can never be the case? Loading history...
156		}
157		});
		0 ignored issues – show Best Practice introduced 2017-01-18 03:13 UTC by Report Bug Copy Issue Report Show Similar Issues like this There is no `return` statement in this branch, but you do return something in other branches. Did you maybe miss it? If you do not want to return anything, consider adding `return undefined;` explicitly. Loading history...
158		});
159		});
160		});
161
162		// 查考试API，通过GET传入用户名和密码
163	View Code Duplication	app.get(/\/[exams\|e]$/, function (req, res, next) {
164		if (!req.query.id \|\| !req.query.pwd \|\| (req.query.sem && !(/^20\d{2}-20\d{2}-[1-2]$/).test(req.query.sem))) {
165		res.status(404).send({ error: "参数不正确" });
166		return;
167		}
168		if (fullLog) {
169		var start = new Date();
170		console.log(`${timeStamp()} Started to query the exams: `.cyan + req.query.id.yellow);
171		}
172		access.login(req.query.id, req.query.pwd, res, function (headers) {
173		if (fullLog) {
174		console.log(`${timeStamp()} Successfully logged in.`.green);
175		}
176
177		superagent
178		.post('http://csujwc.its.csu.edu.cn/jsxsd/xsks/xsksap_list')
179		.set(headers)
180		.type('form')
181		.send({
182		xqlbmc: '',
183		xnxqid: req.query.sem \|\| getSem(),
184		xqlb: ''
185		})
186		.end(function (err, iires) {
187		if (err) {
188		console.log(`${timeStamp()} Failed to reach exams page\n${err.stack}`.red);
189		res.status(404).send({ error: '获取成绩失败' });
190		return next(err);
191		}
192		if (fullLog) {
193		console.log(`${timeStamp()} Successfully entered exams page.`.green);
194		}
195
196		let $ = cheerio.load(iires.text);
197
198		let result = {
199		name: escaper.unescape($('#Top1_divLoginName').text().match(/\s.+\(/)[0].replace(/\s\|\(/g, '')),
200		id: escaper.unescape($('#Top1_divLoginName').text().match(/\(.+\)/)[0].replace(/\(\|\)/g, '')),
201		sem: req.query.sem \|\| getSem(),
202		exams: {},
203		'exams-count': 0,
204		};
205
206		$('#dataList tr').each(function (index) {
207		if (index === 0) {
208		return;
209		}
210		let element = $(this).find('td');
211		let title = escaper.unescape(element.eq(3).text());
212
213		let item = {
214		time: escaper.unescape(element.eq(4).text()),
215		location: escaper.unescape(element.eq(5).text()),
216		seat: escaper.unescape(element.eq(6).text())
217		};
218
219		result.exams[title] = item;
220		result['exams-count']++;
221		});
222
223		access.logout(headers, res, function() {
224		res.send(JSON.stringify(result));
225		if (fullLog) {
226		console.log(`${timeStamp()} Successfully logged out: `.green +
227		req.query.id.yellow +
228		` (processed in ${new Date() - start} ms)`.green);
		0 ignored issues – show Bug introduced 2017-01-18 03:13 UTC by Report Bug Copy Issue Report Show Similar Issues like this The variable `start` does not seem to be initialized in case `fullLog` on line `168` is `false`. Are you sure this can never be the case? Loading history...
229		}
230		});
		0 ignored issues – show Best Practice introduced 2017-01-18 04:23 UTC by Report Bug Copy Issue Report Show Similar Issues like this There is no `return` statement in this branch, but you do return something in other branches. Did you maybe miss it? If you do not want to return anything, consider adding `return undefined;` explicitly. Loading history...
231		});
232		});
233		});
234
235		app.listen(port);
236		console.log(`${timeStamp()} The API is now running on port ${port}. Full logging is ${fullLog ? 'enabled' : 'disabled'}`.green);

Equim-chan / csu-ems-api

Push — master ( 2a41ae...0009c9 )

app.js (7 issues)

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