app.get(ꞌ/exams/ꞌ) - Code Metrics - Inspection of "完善考试查询模块，增加了参数检查" - Equim-chan/csu-ems-api - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( 23c154...a9b87b )

by Equim

created 2017-01-11 13:03 UTC

app.get(ꞌ/exams/ꞌ) C

↳ Parent: app.js

Complexity

Conditions	9
Paths	33

Size

Total Lines

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
cc	9
nc	33
nop	3
dl	0
loc	73
rs	5.9846
c	0
b	0
f	0

1 Function

Rating	Name	Duplication	Size	Complexity
A	��)	0	47	1

How to fix Long Method

/* TODO
 * 完善异常处理
 */

"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 v1.0.0').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('  $ sudo forever start app.js                    # deploy with forever as daemon (root access recommended)');
        console.log('  $ sudo pm2 start -i 0 --name "csuapi" app.js   # deploy with pm2 as daemon  (root access recommended)');
    }
    process.exit(0);

}

const timeStamp = () => new Date().format('[MM-dd hh:mm:ss] '),
      port = program.port || 2333,
      base = 'http://csujwc.its.csu.edu.cn';

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) {
        res.send({ error: "参数不正确" });
        return;
    }
    if (program.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) {
        program.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;

        // 进入成绩页面
        superagent.get(base + $('li[title="我的成绩"] a').attr('href'))
            .set(headers)
            .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);
                }
                program.fullLog && console.log((timeStamp() + 'Successfully entered grades page.').green);

                $ = cheerio.load(iires.text);

                // 获取成绩列表
                let grades = {};
                let failed = {};
                $('#dataList').each(function (index) {
                    // cheerio没有实现jQuery的lt
                    if (index >= 2)
                        return;
if (a > 0)
    b = 42;
                    $(this).find('tr[class!="theadCss"]').each(function() {
                        // 这段写得真是要吐血了
                        let subject = escaper.unescape($(this).find('td[align="left"]').eq(1).text());
                        if (subject) {
                            let score = $(this).find('font');
                            if (score.text())
                                grades[subject] = score.text();
if (a > 0)
    b = 42;
                            if (score.css('color'))
                                failed[subject] = score.text();
if (a > 0)
    b = 42;
                        }
                    });
                });
                ret.grades = grades;
                ret['subject-count'] = Object.getOwnPropertyNames(grades).length;
                ret.failed = failed;
                ret['failed-count'] = Object.getOwnPropertyNames(failed).length;

                // 完成所有工作后，登出
                access.logout(headers, res, function() {
                    // 第五步：返回JSON
                    res.send(JSON.stringify(ret));
                    program.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) {
    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 (program.fullLog) {
        var start = new Date();
        console.log((timeStamp() + 'Started to query the exams: ').cyan + req.query.id.yellow);

    }
    // 获取想要查询的学期，如果没有指定以系统时间为准
    var sem;
    if (req.query.sem) {
        sem = req.query.sem;
    } else {
        let now = new Date();
        let month = now.getMonth();
        let year = now.getFullYear();
        if (month === 0) {
            sem = (year - 1) + '-' + year + '-1';
        } else if (month <= 6) {
            sem = (year - 1) + '-' + year + '-2';
        } else {
            sem = year + '-' + (year + 1) + '-1';
        }
    }
    access.login(req.query.id, req.query.pwd, res, function (headers, ires) {
        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 = sem;
        
        superagent.post('http://csujwc.its.csu.edu.cn/jsxsd/xsks/xsksap_list')
            .set(headers)
            .type('form')
            .send({
                xqlbmc: '',
                xnxqid: 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);
                }
                program.fullLog && console.log((timeStamp() + 'Successfully entered exams page.').green);

                $ = cheerio.load(iires.text);

                let exams = [];

                $('#dataList tr').each(function (index) {
                    if (index === 0)
                        return;
if (a > 0)
    b = 42;
                    let item = $(this).find('td');
                    let subject = {};
                    subject.subject = escaper.unescape(item.eq(3).text());
                    subject.time = escaper.unescape(item.eq(4).text());
                    subject.location = escaper.unescape(item.eq(5).text());
                    subject.seat = escaper.unescape(item.eq(6).text());
                    exams.push(subject);
                });

                ret.exams = exams;

                access.logout(headers, res, function() {
                    res.send(JSON.stringify(ret));
                    program.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);

1			/* TODO
2			* 完善异常处理
3			*/
4
5			"use strict";
6
7			var express = require('express'),
8			superagent = require('superagent'),
9			cheerio = require('cheerio'),
10			escaper = require('true-html-escape'),
11			colors = require('colors'),
12			program = require('commander'),
13			Date = require('./lib/Date.js'),
			0 ignored issues – show Comprehensibility introduced 2017-01-10 09:20 UTC by Report Bug Copy Issue Report You are shadowing the built-in type `Date`. This makes code hard to read, consider using a different name. Loading history...
14			access = require('./lib/access.js');
15
16			program
17			.option('-h, --help')
18			.option('-v, --version')
19			.option('-p, --port [n]', parseInt)
			0 ignored issues – show Bug introduced 2017-01-10 09:20 UTC by Report Bug Copy Issue Report 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...
20			.option('-f, --fullLog')
21			.parse(process.argv);
22
23			// 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
24			if (!program.help \|\| !program.version) {
25			console.log(('CSUEMS API v1.0.0').rainbow);
			1 ignored issue – show Debugging Code introduced 2017-01-10 09:20 UTC by Report Bug Copy Issue Report `console.log` looks like debug code. Are you sure you do not want to remove it? Loading history...
26			console.log(('by The Liberators').rainbow);
27			if (!program.help) {
28			console.log('Preparation:');
29			console.log(' \\\\This section is WIP\\\\');
30			console.log('\nUsage:');
31			console.log(' npm start [-- <options...>]');
32			console.log('\nOptions:');
33			console.log(' -h, --help print this message and exit.');
34			console.log(' -v, --version print the version and exit.');
35			console.log(' -f, --fullLog enable full log, by default only errors are logged.');
36			console.log(' -p, --port [value] specify a port to listen, 2333 by default.');
37			console.log('\nExamples:');
38			console.log(' $ npm start -p 43715 # listening to 43715');
39			console.log(' $ sudo forever start app.js # deploy with forever as daemon (root access recommended)');
40			console.log(' $ sudo pm2 start -i 0 --name "csuapi" app.js # deploy with pm2 as daemon (root access recommended)');
41			}
42			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 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...
43			}
44
45			const timeStamp = () => new Date().format('[MM-dd hh:mm:ss] '),
46			port = program.port \|\| 2333,
47			base = 'http://csujwc.its.csu.edu.cn';
48
49			var app = express();
50
51			// 查成绩API，通过GET传入用户名和密码
52			app.get('/grades/', function (req, res, next) {
53			if (!req.query.id \|\| !req.query.pwd) {
54			res.send({ error: "参数不正确" });
55			return;
56			}
57			if (program.fullLog) {
58			var start = new Date();
59			console.log((timeStamp() + 'Started to query the grades: ').cyan + req.query.id.yellow);
			1 ignored issue – show Debugging Code introduced 2017-01-10 11:31 UTC by Report Bug Copy Issue Report `console.log` looks like debug code. Are you sure you do not want to remove it? Loading history...
60			}
61			access.login(req.query.id, req.query.pwd, res, function (headers, ires) {
62			program.fullLog && console.log((timeStamp() + 'Successfully logged in.').green);
			1 ignored issue – show Debugging Code introduced 2017-01-10 11:31 UTC by Report Bug Copy Issue Report `console.log` looks like debug code. Are you sure you do not want to remove it? Loading history...
63			var ret = {};
64			var $ = cheerio.load(ires.text);
65			ret.name = escaper.unescape($('.block1text').html()).match(/姓名：.+</)[0].replace('<', '').substring(3);
66			ret.id = req.query.id;
67
68			// 进入成绩页面
69			superagent.get(base + $('li[title="我的成绩"] a').attr('href'))
70			.set(headers)
71			.end(function (err, iires) {
72			if (err) {
73			console.log((timeStamp() + 'Failed to get grades page\n' + err.stack).red);
			1 ignored issue – show Debugging Code introduced 2017-01-10 09:20 UTC by Report Bug Copy Issue Report `console.log` looks like debug code. Are you sure you do not want to remove it? Loading history...
74			res.send({ error: '无法进入成绩页面' });
75			return next(err);
76			}
77			program.fullLog && console.log((timeStamp() + 'Successfully entered grades page.').green);
78
79			$ = cheerio.load(iires.text);
80
81			// 获取成绩列表
82			let grades = {};
83			let failed = {};
84			$('#dataList').each(function (index) {
85			// cheerio没有实现jQuery的lt
86			if (index >= 2)
87			return;
			0 ignored issues – show Coding Style Best Practice introduced 2017-01-10 09:20 UTC by Report Bug Copy Issue Report Curly braces around statements make for more readable code and help prevent bugs when you add further statements. Consider adding curly braces around all statements when they are executed conditionally. This is optional if there is only one statement, but leaving them out can lead to unexpected behaviour if another statement is added later. Consider: if (a > 0) b = 42; If you or someone else later decides to put another statement in, only the first statement will be executed. if (a > 0) console.log("a > 0"); b = 42; In this case the statement `b = 42` will always be executed, while the logging statement will be executed conditionally. if (a > 0) { console.log("a > 0"); b = 42; } ensures that the proper code will be executed conditionally no matter how many statements are added or removed. Loading history...
88			$(this).find('tr[class!="theadCss"]').each(function() {
89			// 这段写得真是要吐血了
90			let subject = escaper.unescape($(this).find('td[align="left"]').eq(1).text());
91			if (subject) {
92			let score = $(this).find('font');
93			if (score.text())
94			grades[subject] = score.text();
			0 ignored issues – show Coding Style Best Practice introduced 2017-01-10 09:20 UTC by Report Bug Copy Issue Report Curly braces around statements make for more readable code and help prevent bugs when you add further statements. Consider adding curly braces around all statements when they are executed conditionally. This is optional if there is only one statement, but leaving them out can lead to unexpected behaviour if another statement is added later. Consider: if (a > 0) b = 42; If you or someone else later decides to put another statement in, only the first statement will be executed. if (a > 0) console.log("a > 0"); b = 42; In this case the statement `b = 42` will always be executed, while the logging statement will be executed conditionally. if (a > 0) { console.log("a > 0"); b = 42; } ensures that the proper code will be executed conditionally no matter how many statements are added or removed. Loading history...
95			if (score.css('color'))
96			failed[subject] = score.text();
			0 ignored issues – show Coding Style Best Practice introduced 2017-01-10 09:20 UTC by Report Bug Copy Issue Report Curly braces around statements make for more readable code and help prevent bugs when you add further statements. Consider adding curly braces around all statements when they are executed conditionally. This is optional if there is only one statement, but leaving them out can lead to unexpected behaviour if another statement is added later. Consider: if (a > 0) b = 42; If you or someone else later decides to put another statement in, only the first statement will be executed. if (a > 0) console.log("a > 0"); b = 42; In this case the statement `b = 42` will always be executed, while the logging statement will be executed conditionally. if (a > 0) { console.log("a > 0"); b = 42; } ensures that the proper code will be executed conditionally no matter how many statements are added or removed. Loading history...
97			}
98			});
99			});
100			ret.grades = grades;
101			ret['subject-count'] = Object.getOwnPropertyNames(grades).length;
102			ret.failed = failed;
103			ret['failed-count'] = Object.getOwnPropertyNames(failed).length;
104
105			// 完成所有工作后，登出
106			access.logout(headers, res, function() {
107			// 第五步：返回JSON
108			res.send(JSON.stringify(ret));
109			program.fullLog && console.log((timeStamp() + 'Successfully logged out: ').green + req.query.id.yellow + (' (processed in ' + (new Date() - start) + 'ms)').green);
			1 ignored issue – show Debugging Code introduced 2017-01-11 13:04 UTC by Report Bug Copy Issue Report `console.log` looks like debug code. Are you sure you do not want to remove it? Loading history... Bug introduced 2017-01-11 13:04 UTC by Report Bug Copy Issue Report The variable `start` does not seem to be initialized in case `program.fullLog` on line `57` is `false`. Are you sure this can never be the case? Loading history...
110			});
			0 ignored issues – show Best Practice introduced 2017-01-11 13:04 UTC by Report Bug Copy Issue Report 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...
111			});
112			});
113			});
114
115			// 查考试API，通过GET传入用户名和密码
116			app.get('/exams/', function (req, res, next) {
117			if (!req.query.id \|\| !req.query.pwd \|\| (req.query.sem && !(/^20\d{2}-20\d{2}-[1-2]$/).test(req.query.sem))) {
118			res.send({ error: "参数不正确" });
119			return;
120			}
121			if (program.fullLog) {
122			var start = new Date();
123			console.log((timeStamp() + 'Started to query the exams: ').cyan + req.query.id.yellow);
			1 ignored issue – show Debugging Code introduced 2017-01-10 09:20 UTC by Report Bug Copy Issue Report `console.log` looks like debug code. Are you sure you do not want to remove it? Loading history...
124			}
125			// 获取想要查询的学期，如果没有指定以系统时间为准
126			var sem;
127			if (req.query.sem) {
128			sem = req.query.sem;
129			} else {
130			let now = new Date();
131			let month = now.getMonth();
132			let year = now.getFullYear();
133			if (month === 0) {
134			sem = (year - 1) + '-' + year + '-1';
135			} else if (month <= 6) {
136			sem = (year - 1) + '-' + year + '-2';
137			} else {
138			sem = year + '-' + (year + 1) + '-1';
139			}
140			}
141			access.login(req.query.id, req.query.pwd, res, function (headers, ires) {
142			var ret = {};
143			var $ = cheerio.load(ires.text);
144			ret.name = escaper.unescape($('.block1text').html()).match(/姓名：.+</)[0].replace('<', '').substring(3);
145			ret.id = req.query.id;
146			ret.sem = sem;
147
148			superagent.post('http://csujwc.its.csu.edu.cn/jsxsd/xsks/xsksap_list')
149			.set(headers)
150			.type('form')
151			.send({
152			xqlbmc: '',
153			xnxqid: sem,
154			xqlb: ''
155			})
156			.end(function (err, iires) {
157			if (err) {
158			console.log((timeStamp() + 'Failed to reach exams page\n' + err.stack).red);
			1 ignored issue – show Debugging Code introduced 2017-01-10 19:43 UTC by Report Bug Copy Issue Report `console.log` looks like debug code. Are you sure you do not want to remove it? Loading history...
159			res.send({ error: '获取成绩失败' });
160			return next(err);
161			}
162			program.fullLog && console.log((timeStamp() + 'Successfully entered exams page.').green);
163
164			$ = cheerio.load(iires.text);
165
166			let exams = [];
167
168			$('#dataList tr').each(function (index) {
169			if (index === 0)
170			return;
			0 ignored issues – show Coding Style Best Practice introduced 2017-01-10 19:43 UTC by Report Bug Copy Issue Report Curly braces around statements make for more readable code and help prevent bugs when you add further statements. Consider adding curly braces around all statements when they are executed conditionally. This is optional if there is only one statement, but leaving them out can lead to unexpected behaviour if another statement is added later. Consider: if (a > 0) b = 42; If you or someone else later decides to put another statement in, only the first statement will be executed. if (a > 0) console.log("a > 0"); b = 42; In this case the statement `b = 42` will always be executed, while the logging statement will be executed conditionally. if (a > 0) { console.log("a > 0"); b = 42; } ensures that the proper code will be executed conditionally no matter how many statements are added or removed. Loading history...
171			let item = $(this).find('td');
172			let subject = {};
173			subject.subject = escaper.unescape(item.eq(3).text());
174			subject.time = escaper.unescape(item.eq(4).text());
175			subject.location = escaper.unescape(item.eq(5).text());
176			subject.seat = escaper.unescape(item.eq(6).text());
177			exams.push(subject);
178			});
179
180			ret.exams = exams;
181
182			access.logout(headers, res, function() {
183			res.send(JSON.stringify(ret));
184			program.fullLog && console.log((timeStamp() + 'Successfully logged out: ').green + req.query.id.yellow + (' (processed in ' + (new Date() - start) + 'ms)').green);
			1 ignored issue – show Debugging Code introduced 2017-01-10 19:43 UTC by Report Bug Copy Issue Report `console.log` looks like debug code. Are you sure you do not want to remove it? Loading history... Bug introduced 2017-01-11 13:04 UTC by Report Bug Copy Issue Report The variable `start` does not seem to be initialized in case `program.fullLog` on line `121` is `false`. Are you sure this can never be the case? Loading history...
185			});
			0 ignored issues – show Best Practice introduced 2017-01-11 13:04 UTC by Report Bug Copy Issue Report 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...
186			});
187			});
188			});
189
190			app.listen(port);
191			console.log((timeStamp() + 'The server is now running on port ' + port + '.').green);

Equim-chan / csu-ems-api

Push — master ( 23c154...a9b87b )

app.get(ꞌ/exams/ꞌ) C

Complexity

Size

Duplication

Importance

1 Function

How to fix Long Method

Long Method

Duplication Side-by-Side

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