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‎final/jim-app

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Subproject commit e9dfd5732146ead052cc2e5c112921038c0af541

‎lab1/Rana_Aparajita copy.zip

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‎lab1/Rana_Aparajita.zip

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‎lab1/arrays.js

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let myStringArray = ['hello', 'world', 'my', 'name', 'is', 'Patrick'];
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let myNumArray = [1, 2, 3, 4, 5];
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let mixedArray = [
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1,
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'Hello',
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undefined,
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true,
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(message) => {
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console.log(message);
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}
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];
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mixedArray[4]('Hello world!');
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myStringArray.forEach((value) => {
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console.log(value);
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});
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let myNumArraySquared = myNumArray.map((x) => {
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return x * x;
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});
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console.log(myNumArray);
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console.log(myNumArraySquared);
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// console.log(myNumArray);
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let oddNumbers = myNumArray.filter((num) => {
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return num % 2 === 1;
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});
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// // // console.log(myNumArray);
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console.log(oddNumbers);
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let sumOfOdds = oddNumbers.reduce((currentTotal, newValue) => {
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const newTotal = currentTotal + newValue;
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return newTotal;
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}, 0);
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console.log(sumOfOdds);
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// console.log(myNumArray);
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myNumArray.push(6);
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console.log(myNumArray);
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myNumArray.push('Patrick');
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console.log(myNumArray);
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console.log(myNumArray.pop());
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console.log(myNumArray);
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// console.log(myNumArray.join('&&'));

‎lab1/hello.js

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let message = 'Hello, world';
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console.log(message);
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console.log('Hello, World!');

‎lab1/lab1.js

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//I pledge my honor that I have abided by the Stevens Honor System - Aparajita Rana
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const { promises } = require("fs");
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const questionOne = function questionOne(arr) {
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// Implement question 1 here
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if(arr == undefined){
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return {};
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}
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if(arr.length==0){
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return {};
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}
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let prime={};
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for(let x = 0; x < arr.length; x++){
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let num = arr[x];
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let temp = true;
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//base cases
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if(num == 0 || num == 1){
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temp = false;
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}
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//check if divisable by anything -> if it is then not prime ret false
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else{
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for(let y = 2; y <= num/2; y++){
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if(num%y == 0){
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temp = false;
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}
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}
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}
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//set the res into the right place
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prime[num] = temp ? true : false;
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}
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return prime;
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}
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const questionTwo = function questionTwo(arr) {
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// Implement question 2 here
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if(arr.length===0 || arr==undefined){
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return 0;
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}
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let myNumArraySquared = arr.map((x) => {
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return x * x;
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});
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let sum = myNumArraySquared.reduce((a, b) => a + b, 0);
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let temp = Math.sqrt(Math.pow(sum, 5));
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//toFixed returns string -> we want number
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return Number(temp.toFixed(2));
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}
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const questionThree = function questionThree(text) {
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// Implement question 3 here
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let vals= {consonants: 0, vowels: 0, numbers: 0, spaces: 0, punctuation: 0, specialCharacters: 0}
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if(text.length<=0 || text==undefined){
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return vals;
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}
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// regex format: g -> string i -> ignores case
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var vow = text.match(/[aeiou]/gi);
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vals.vowels = (vow!=null) ? vow.length : 0;
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var num = text.match(/[01233456789]/gi);
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vals.numbers = (num!=null) ? num.length : 0;
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vals.spaces = (text.split(" ").length - 1);
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var punc = text.match(/[.,':;!?]/gi);
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vals.punctuation = (punc!=null) ? punc.length : 0;
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var spec = text.match(/[@#$%^&*]/gi);
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vals.specialCharacters = (spec!=null) ? spec.length : 0;
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var cons = text.match(/[bcdfghjklmnpqrstvwxzy]/gi);
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vals.consonants = (cons!=null) ? cons.length : 0;
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return vals;
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}
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const questionFour = function questionFour(num1, num2, num3) {
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// Implement question 4 here
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if(num1<0 || num2<0 || num3<0){
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return -1;
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}
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// Loan Payment (P) = Amount (A) / Discount Factor (D)
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var rate = (num2 / 100) /12;
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var mon = num3 * 12;
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var temp = Math.pow((1+rate), mon);
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if (rate === 0) {
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var res = num1 / mon;
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return parseFloat(res.toFixed(2), 10);
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}
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else {
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var res2 = (num1 * rate * temp) / (temp - 1);
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return parseFloat(res2.toFixed(2), 10);
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}
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}
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module.exports = {
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firstName: "Aparajita",
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lastName: "Rana",
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studentId: "10440384",
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questionOne,
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questionTwo,
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questionThree,
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questionFour
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};

‎lab1/lab1.test.js

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const lab1 = require("./lab1");
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console.log(lab1.questionOne([24, 11, 33]));
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console.log(lab1.questionOne([45, 73, 100]));
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console.log(lab1.questionOne([1]));
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console.log(lab1.questionOne([85, 103, 97]));
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console.log(lab1.questionOne([52, 57, 99, 113]));
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console.log(lab1.questionOne([]));
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console.log(lab1.questionOne());
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console.log(lab1.questionTwo([3,2,1]));
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console.log(lab1.questionTwo([10, 3, 5]));
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console.log(lab1.questionTwo([14,22,30]));
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console.log(lab1.questionTwo([25, 180, 93]));
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console.log(lab1.questionTwo([23, 37, 19]));
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console.log(lab1.questionTwo([]));
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console.log(lab1.questionThree("Hello World."));
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console.log(lab1.questionThree("Web Programming seems pretty fun!"));
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console.log(lab1.questionThree("yikes!?"));
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console.log(lab1.questionThree("Once upon a time not long ago, I had a farm"));
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console.log(lab1.questionThree("Today is the Super Bowl. I don't watch football but I really like the Weeknd so I still watched"));
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console.log(lab1.questionThree(""));
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console.log(lab1.questionFour(45000, 4, 8));
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console.log(lab1.questionFour(52000, 7, 11));
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console.log(lab1.questionFour(30500, 5.2, 8));
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console.log(lab1.questionFour(29520, 8.1, 3));
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console.log(lab1.questionFour(52210, 2, 5));
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console.log(lab1.questionFour(33030, 5.5, 1));

‎lab10/Rana_Aparajita_CS546_WS.zip

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‎lab10/app.js

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//I pledge my honor that I have abided byt the Stevens Honor System - Aparajita Rana
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const session = require('express-session');
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const express = require("express");
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const app = express();
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const configRoutes = require("./routes");
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const exphbs = require("express-handlebars");
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app.use('/public', express.static(__dirname + '/public'));
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app.use(express.json());
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app.use(express.urlencoded({ extended: true }));
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app.use(session({
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name: 'AuthCookie',
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secret: 'supersecretstring',
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resave: false,
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saveUninitialized: true
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}));
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app.engine('handlebars', exphbs({defaultLayout : "main"}));
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app.set('view engine', 'handlebars');
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//logging middleware
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app.use('*',(req, res, next)=>{
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console.log("[%s]: %s %s (%s)", new Date().toUTCString(), req.method, req.originalUrl, `${req.session.user ? "Authenticated User" : "Non-Authenticated User"}`);
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next();
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});
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configRoutes(app);
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app.listen(3000, () => {
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console.log("We've now got a server!");
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console.log('Your routes will be running on http://localhost:3000');
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});

‎lab10/data/users.js

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module.exports = [
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{
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_id: 0,
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username: "masterdetective123",
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hashedPassword: "$2a$16$7JKSiEmoP3GNDSalogqgPu0sUbwder7CAN/5wnvCWe6xCKAKwlTD.",
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firstName: "Sherlock",
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lastName: "Holmes",
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profession: "Detective",
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bio: "Sherlock Holmes (/ˈʃɜːrlɒk ˈhoʊmz/) is a fictional private detective created by British author " +
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"Sir Arthur Conan Doyle. Known as a \"consulting detective\" in the stories, Holmes is known for a" +
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" proficiency with observation, forensic science, and logical reasoning that borders on the fantastic," +
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" which he employs when investigating cases for a wide variety of clients, including Scotland Yard."
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}, // etc, dont forget the other data
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{
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_id: 1,
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username: "lemon",
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hashedPassword: "$2a$16$SsR2TGPD24nfBpyRlBzINeGU61AH0Yo/CbgfOlU1ajpjnPuiQaiDm",
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firstName: "Elizabeth",
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lastName: "Lemon",
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profession: "Writer",
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bio: "Elizabeth Miervaldis \"Liz\" Lemon is the main character of the American television series 30 Rock. She " + "created and writes for the fictional comedy-sketch show The Girlie Show or TGS with Tracy Jordan."
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} // etc, dont forget the other data
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];

‎lab10/package.json

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{
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"name": "cs546-lab-10",
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"version": "1.0.0",
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"description": "authentication and middleware",
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"main": "index.js",
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"scripts": {
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"test": "echo \"Error: no test specified\" && exit 1",
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"start": "node app.js"
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},
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"author": "Aparajita Rana 10440384",
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"license": "ISC",
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"dependencies": {
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"bcrypt": "^3.0.6",
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"express": "^4.16.4",
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"express-handlebars": "^3.0.2",
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"express-session": "^1.16.1"
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}
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}

‎lab10/routes/index.js

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const pageRoutes = require('./pages');
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const constructorMethod = (app) => {
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app.use('/', pageRoutes);
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app.use('*', (req, res) => {
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res.sendStatus(404);
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});
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};
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module.exports = constructorMethod;

‎lab10/routes/pages.js

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const bcrypt = require('bcrypt');
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const users = require('../data/users');
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const express = require("express");
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const router = express.Router();
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//authentication middleware
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//reference: https://scotch.io/tutorials/route-middleware-to-check-if-a-user-is-authenticated-in-node-js
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function isAuthenticated(req, res, next) {
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if (req.session.user)
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return next();
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else res.status(403).render("invalid", {title:"Invalid Entry"});
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}
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router.get('/', function(req, res) {
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if (req.session.user) {
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res.redirect('/private')
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} else {
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res.render('login', {title: "Login"})
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}
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});
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router.post('/login', async(req, res) => {
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//to fix: "Cannot set headers after they are sent to the client"
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let inval = false;
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if(req.body.username && req.body.password){
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for(let user in users){
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if(users[user].username == req.body.username){
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let match = await bcrypt.compare(req.body.password, users[user].hashedPassword);
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if(match){
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req.session.user = {
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'username': users[user].username,
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'password':users[user].hashedPassword,
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'_id':users[user]._id,
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'firstName':users[user].firstName,
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'lastName':users[user].lastName,
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'profession':users[user].profession,
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'bio':users[user].bio};
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res.redirect('/private');
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}
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else{
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inval = true;
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}
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}
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else{
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inval = true;
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}
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}
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}
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else{
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inval=true;
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}
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if(inval){
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res.status(401).render('login', {title : "Incorrect Username and/or Password", error:"Incorrect Username and/or Password"});
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}
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/* catch(err){
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res.status(401);
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res.render('login', {message : "Incorrect Username and/or Password", error:"Incorrect Username and/or Password"});
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} */
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});
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router.get("/private",isAuthenticated,(req,res) => {
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//console.log(req.session.user);
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res.render('details', req.session.user);
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});
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router.get("/logout", async (req, res) => {
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//res.clearCookie("AuthCookie");
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req.session.destroy();
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res.render('logout', { message: "Logged out successfully!" });
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});
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module.exports = router

‎lab10/views/details.handlebars

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<h1>User Information: </h1>
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<p>ID: {{_id}} </p>
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<p>Username: {{username}} </p>
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<p>First Name: {{firstName}}</p>
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<p>Last Name: {{lastName}}</p>
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<p>Profession: {{profession}}</p>
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<p>Bio: {{bio}}</p>
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<a href="/logout">Logout</a>

‎lab10/views/invalid.handlebars

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<p>You did not provide a valid username and/or password</p>
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<a href="/">Login</a>

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