13512054 - Luqman Faizlani Kusnadi

README.md

@@ -1,27 +1,17 @@
 # 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      = 13512054
+ * Name     = Luqman Faizlani Kusnadi
+ * GithubID = luqmankusnadi
 
-Each participnats should indicate clearly the following data:
- * NIM      = 1[35|82]+XXYYY
- * Name     = XXXXXXX
- * GithubID = YYYY
-
-Requreiments:
- * ....
- * ....
- * 
+Requirements:
+ * `Node.js`
 
 How to Deploy
- 1. .....
- 2. .....
- 3. .....
- 4. 
+ 1. Install `Node.js`
+
 
 How to Run
- 1. .....
- 2. .....
+ 1. Run the service by using command line `node service.js`
+ 2. Access `http://localhost:8080/?ps=[kode_jurusan]&kode=[kode_matakuliah]&kelas=[nomor_kelas]`
 

main.js

@@ -0,0 +1,77 @@
+var http = require('http');
+var url = require('url');
+var cheerio = require('cheerio');
+var request = require('request');
+const PORT = 8080;
+
+function requestHandler(req,res){
+	var urlParts = url.parse(req.url, true);
+	var query = urlParts.query;
+	res.setHeader('Content-Type','application/json');
+	var response = {};
+	if(query.ps && query.kode && query.kelas){
+		request('https://six.akademik.itb.ac.id/publik/daftarkelas.php?ps='+query.ps+'&semester=1&tahun=2015&th_kur=2013', function (error, crawlRes, html) {
+			if (!error && crawlRes.statusCode == 200) {
+				var $ = cheerio.load(html);
+				if($('ol').children('li').length != 0){
+						if($('ol').children('li:contains("'+query.kode+'")').length != 0){							
+							$('ol').children('li:contains("'+query.kode+'")').each(function(i,x){
+								var href = $('a:contains("'+query.kelas+'")', this).attr('href');
+								if(href){
+									var listUrl = "https://six.akademik.itb.ac.id/publik/"+href;
+									request(listUrl, function (error2,crawlRes2,html2){
+										if(!error2 && crawlRes2.statusCode == 200){
+											var regexString1 = "<pre>([A-Za-z ]+)\\nProgram Studi\\t\\t: ([A-Za-z ]+)\\nSemester\\t\\t: (\\d+)/(\\d+)\\n\\nKode/Mata Kuliah\\t: ([A-Z]{2}\\d+) / ([A-Za-z &.]+), (\\d) SKS\\nNo. Kelas/Dosen\\t\\t: (\\d+) / ([A-Za-z .]+)\\n\\n-+\\nNo\\.[ ]+NIM[ ]+NAMA\\n-+\\n[A-Za-z\\d \\n'-\\.]+Total Peserta = (\\d+)\\n</pre>";
+											var regexString2 = /(\d+) (\d+)   ([-A-Za-z \.']+)\n/g;
+											var regexResult = html2.match(regexString1);
+											response["fakultas"] = regexResult[1];
+											response["prodi"] = regexResult[2];
+											response["semester"] = regexResult[3];
+											response["tahun"] = "20"+regexResult[4];
+											response["kode"] = regexResult[5];
+											response["mata_kuliah"] = regexResult[6];
+											response["sks"] = regexResult[7];
+											response["kelas"] = regexResult[8];
+											response["dosen"] = regexResult[9];
+											response["jumlah_peserta"] = regexResult[10];
+											response["peserta"] = [];
+
+											for(var i=0;i<parseInt(regexResult[10]);i++){
+												var result = regexString2.exec(html2);
+												response["peserta"].push({nim : result[2] , nama : result[3] });
+											}
+											console.log(response);
+											res.end(JSON.stringify(response));
+										}
+									});
+								}
+								else{
+									response = {"error" : "Terjadi kesalahan pada server"};
+									res.end(JSON.stringify(response));
+								}
+							});
+
+						}
+						else{
+							response =  {"error" : "Tidak ditemukan kelas dengan kode "+query.kode};
+							res.end(JSON.stringify(response));
+						}	
+					}
+					else{
+						response = {"error" : "Terjadi kesalahan pada server"};
+						res.end(JSON.stringify(response));
+
+					}
+			} else {
+				response = {"error" : "Terjadi kesalahan pada server"};
+				res.end(JSON.stringify(response));
+			}
+		});
+	} else {
+		response = {"error" : "Request tidak sesuai format"};
+		res.end(JSON.stringify(response));
+	}
+	//res.end(JSON.stringify(response));
+}
+
+var server = http.createServer(requestHandler).listen(PORT);