13512004 - Tirta Wening Rachman

index.js

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+var express = require('express');
+var App = express();
+var HTTPS = require('https');
+var Cheerio = require("cheerio");
+
+
+//Handler functions
+var apiHandler = function (req, res) {
+  getKelasListPage(req, res, getDpkPage)
+};
+
+//Helper functions
+var sendJsonResponse = function(req, res, dpk_page_body, cb) {
+  var html = dpk_page_body;
+  var $ = Cheerio.load(html);
+  var dpkString = $('pre').html();
+
+  var re_infos = /\s*([^\n\r]*)\nProgram Studi\s*: \s*([^\n\r]*)\nSemester\s*:\s*([0-9])\/([^\n\r]{2})\n*Kode\/Mata Kuliah\s*:\s*([^\n\r]{6}) \/ \s*([^\n\r]*),\s*([0-9])\s*\S*\nNo\. Kelas\/Dosen\s*:\s*([^\n\r]{2})\s\/\s([^\n\r]*)[\s\S\n]*Total Peserta = ([0-9]{2})/;
+  var re_pesertas = /([0-9]{3})\s*([0-9]{8})\s*([^\n\r]*)/g;
+
+  var infos = re_infos.exec(dpkString);
+  if(!infos){
+    res.status(404).json({"error": "Kelas tidak ditemukan"});
+    return;
+  }
+
+  var peserta = re_pesertas.exec(dpkString);
+  var arrPeserta = [];
+  while (peserta != null) {
+      // console.log(peserta[1]);
+      arrPeserta.push({
+        "nim": peserta[2],
+        "nama": peserta[3].trim()
+      });
+      peserta = re_pesertas.exec(dpkString);
+  }
+
+  var jsonObj = {
+    Content: {
+      "fakultas": infos[1],
+      "prodi": infos[2],
+      "semester":infos[3],
+      "tahun": '20'+infos[4],
+      "kode": infos[5],
+      "mata_kuliah": infos[6],
+      "sks": infos[7],
+      "kelas": infos[8],
+      "dosen": infos[9],
+      "jumlah_peserta": infos[10],
+      "peserta": arrPeserta
+    }
+  };
+
+  res.json(jsonObj);
+}
+
+var getDpkPage = function(req, res, kelas_list_page_body, cb) {
+  var kode;
+  if(req.query.kode){
+    kode = req.query.kode;
+  }else{
+
+    return;
+    // kode = 'IF2110';
+  }
+
+  var html = kelas_list_page_body;
+  var $ = Cheerio.load(html);
+  var liMatkul = $('li:contains("'+kode+'")');
+
+  var kelas;
+  if(req.query.kelas){
+    kelas = req.query.kelas;
+  }else{
+    res.status(400).json({"error": "Request tidak sesuai format"});
+    return;
+    // kelas = '01'
+  }
+
+  var liKelas = liMatkul.find('li:contains("'+kelas+'")');
+
+  var dpkPath = liKelas.find('a').attr('href');
+
+  var reqUrl = 'https://six.akademik.itb.ac.id/publik/'+dpkPath;
+  HTTPS.get(reqUrl, function(httpRes) {
+    console.log("Got response: " + httpRes.statusCode);
+
+    var httpResBody = '';
+    httpRes.on('data', function(chunk) {
+      httpResBody += chunk;
+    });
+    httpRes.on('end', function() {
+      cb(req, res, httpResBody)
+    });
+  }).on('error', function(e) {
+    res.status(500).json({"error": "Terjadi kesalahan pada server"});
+  });
+
+  // res.send(liKelas.html());
+};
+
+var getKelasListPage = function(req, res, cb) {
+  var ps;
+  if(req.query.ps){
+    ps = req.query.ps;
+  }else{
+    res.status(400).json({"error": "Request tidak sesuai format"});
+    return;
+    // ps = '135';
+  }
+
+  var reqUrl = "https://six.akademik.itb.ac.id/publik/daftarkelas.php?ps="+ps+"&semester=1&tahun=2015&th_kur=2013";
+  HTTPS.get(reqUrl, function(httpRes) {
+    console.log("Got response: " + httpRes.statusCode);
+
+    var httpResBody = '';
+    httpRes.on('data', function(chunk) {
+      httpResBody += chunk;
+    });
+    httpRes.on('end', function() {
+      cb(req, res, httpResBody, sendJsonResponse)
+      // res.send(httpResBody);
+    });
+
+  }).on('error', function(e) {
+    res.status(500).json({"error": "Terjadi kesalahan pada server"});
+  });
+
+};
+
+//Router
+App.get('/api', apiHandler);
+
+
+
+//Main
+var server = App.listen(3000, function () {
+  var host = server.address().address;
+  var port = server.address().port; 
+
+  var welcomeMessage = "\n";
+  welcomeMessage += " '########  '########  '##   '## \n";
+  welcomeMessage += "  ##     ##  ##     ##  ##  '##  \n";
+  welcomeMessage += "  ##     ##  ##     ##  ## '##   \n";
+  welcomeMessage += "  ##     ##  ########   #####    \n";
+  welcomeMessage += "  ##     ##  ##         ##  ##   \n";
+  welcomeMessage += "  ##     ##  ##         ##   ##  \n";
+  welcomeMessage += "  ########   ##         ##    ## \n";
+  welcomeMessage += "                                 \n";
+  welcomeMessage += " '######## '#### '##    ## '########  '######## '########  \n";
+  welcomeMessage += "  ##         ##   ###   ##  ##     ##  ##        ##     ## \n";
+  welcomeMessage += "  ##         ##   ####  ##  ##     ##  ##        ##     ## \n";
+  welcomeMessage += "  ######     ##   ## ## ##  ##     ##  ######    ########  \n";
+  welcomeMessage += "  ##         ##   ##  ####  ##     ##  ##        ##   ##   \n";
+  welcomeMessage += "  ##         ##   ##   ###  ##     ##  ##        ##    ##  \n";
+  welcomeMessage += "  ##       '####  ##    ##  ########   ########  ##     ## \n";
+
+  console.log(welcomeMessage);
+  console.log('By Tirta Wening Rachman - 13512004');
+  console.log('listening at port '+ port);
+});
+

package.json

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+{
+  "name": "app",
+  "version": "1.0.0",
+  "description": "",
+  "main": "index.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "author": "",
+  "license": "ISC",
+  "dependencies": {
+    "cheerio": "^0.19.0",
+    "express": "^4.13.3"
+  }
+}

readme.md

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+# README for Service Adapter Assignment on IF4050 2015
+
+
+ * NIM      = 13512004
+ * Name     = Tirta Wening Rachman
+ * GithubID = tirtawr
+
+Requreiments:
+ * Server must be run on internal ITB network
+
+How to Deploy
+ 1. Install Node.js
+ 2. Install npm
+ 3. Clone repository
+ 4. run 'npm install'
+
+How to Run
+ 1. run index.js to start server
+
+