13512013 - Joshua Bezaleel Abednego

.gitignore

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+node_modules/

README.md

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 # README for Service Adapter Assignment on IF4050 2015
 
-##Instruction
-1. Fork this repository https://github.com/if-itb/if4050-2015-ServiceAdapter.git
-2. Work on your fork --> commit --> push [as many as you want]
-3. [When you are done OR the deadline] create pull request  
+ * NIM      = 13512013
+ * Name     = Joshua Bezaleel Abednego
+ * GithubID = joshuabezaleel
 
-Each participnats should indicate clearly the following data:
- * NIM      = 1[35|82]+XXYYY
- * Name     = XXXXXXX
- * GithubID = YYYY
+##Requirements:
+ * NodeJS 4.0.0
 
-Requreiments:
- * ....
- * ....
- * 
-
-How to Deploy
- 1. .....
- 2. .....
- 3. .....
- 4. 
+##How to Deploy
+ 1. Go to the root folder of the project
+ 2. Install all of the dependencies by executing the command `npm install` through command prompt.
+ 3. Run the server by executing the command `node server.js`.
+ 4. Server can be accessed through `localhost:80`.
 
-How to Run
- 1. .....
- 2. .....
+##How to Run
+ 1. Send a request in a form of `GET /?parameters...`. The parameters are :
+ 	- `prodi` which indicates the study program code.
+ 	- `kode` which indicates the course code.
+ 	- `kelas` which indicates the class number.
+ 2. Example of a complete request will be `GET /?prodi=135&kode=IF4050&kelas=01`.
+ 3. It will return a value in a form of JSON containing the information of the course.
+ 4. If there is error found, the error will be described in the JSON returned. 
 

REST.md

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+# Service Adapter Daftar Peserta Kelas akademik.itb.ac.id
+
+## Format Request
+
+	Method: GET
+
+Parameter:
+
+	ps: Kode angka jurusan. Contoh: 135
+	kode: Kode mata kuliah. Contoh: IF4050
+	kelas: Kelas. Contoh: 01
+
+Contoh request:
+
+	GET /?ps=135&kode=IF4050&kelas=01
+
+## Format Response
+
+	Content-Type: application/json
+
+Response saat berhasil:
+
+	Status Code: 200
+
+	Content:
+	{
+	    "fakultas": "Sekolah Teknik Elektro dan Informatika",
+	    "prodi": "Teknik Informatika",
+	    "semester": "1",
+	    "tahun": 2015,
+	    "kode": "IF4050",
+	    "mata_kuliah": "Pembangunan Perangkat Lunak Berorientasi Service",
+	    "sks": "3",
+	    "kelas": "01",
+	    "dosen": "Adi Mulyanto",
+	    "jumlah_peserta": "50",
+	    "peserta": [
+	        {
+	            "nim": "13511018",
+	            "nama": "Tito D Kesumo Siregar"
+	        },
+			...
+	    ]
+	}
+
+Response saat request tidak sesuai format:
+
+	Status Code: 400
+
+	Content:
+	{
+		"error": "Request tidak sesuai format"
+	}
+
+Response saat kelas tidak ditemukan:
+
+	Status Code: 404
+
+	Content:
+	{
+		"error": "Tidak ditemukan kelas dengan kode IF4051"
+	}
+
+Response saat terjadi kesalahan di server:
+
+	Status Code: 500
+
+	Content:
+	{
+		"error": "Terjadi kesalahan pada server"
+	}
+

package.json

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+{
+  "name"         : "IF4050-Service-Adapter",
+  "version"      : "0.0.1",
+  "description"  : "Scrape the DPK from six.akademik.itb.ac.id",
+  "main"         : "server.js",
+  "author"       : "Joshua Bezaleel Abednego",
+  "dependencies" : {
+    "express"    : "latest",
+    "request"    : "latest",
+    "cheerio"    : "latest"
+  }
+}

server.js

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+var express = require('express');
+var request = require('request');
+var cheerio = require('cheerio');
+var app = express();
+
+app.get('/', function (req, res){
+	var prodi = req.query.prodi;
+	var kode = req.query.kode;
+	var kelas = req.query.kelas
+
+	var baseurl = 'https://six.akademik.itb.ac.id/publik/';
+	var prodiurl = 'daftarkelas.php?ps='+prodi+'&semester=1&tahun=2015&th_kur=2013';
+
+	request(baseurl + prodiurl, function(error, response, html){
+		if(!error && response.statusCode == 200){
+			var $ = cheerio.load(html);
+			$('li').each(function(){
+				if($(this).text().substring(0,6)===kode){
+					$(this).find('a').each(function(){
+						if($(this).text().substring(0,2)===kelas){
+							var href = $(this).attr('href');
+							request(baseurl+href, function(error,response,html){
+								$ = cheerio.load(html);
+								text = $('pre').text().split('\n');
+								var result = parsing(text);
+								res.status(200).json(result);
+							});		
+						}
+					});	
+				}
+			});
+		}
+
+	});
+});
+
+function parsing(text){
+	var result = {};
+	result.fakultas = text[0];
+	result.prodi = text[1].substr(17);
+	result.semester = text[2].substr(12,1);
+	result.tahun = "20" + text[2].substr(14);
+	result.kodematkul = text[4].substr(19,6);
+	result.namamatkul = text[4].substr(28).split(',')[0];
+	result.sks = text[4].substr(text[4].length-5,1);
+	result.kelas = text[5].substr(19,2);
+	result.dosen = text[5].substr(24);
+	result.jumpeserta = text[text.length-2].substr(16);
+	result.peserta = [];
+	//console.log(result.length-3);
+	for(var i = 10; i < text.length-3 ; i++){
+		result.peserta.push({
+			"nim" : text[i].substr(4,6),
+			"nama" : text[i].substr(15).trim()
+		});
+	}
+	return result;
+};
+
+app.listen('80');
+console.log('Server is running');
+exports = module.exports = app;