Develop/config/config.json { "development": { "username": "root", "password": "root", "database": "passport_demo", "host": " XXXXXXXXXX", "dialect": "mysql" }, "test": { "username": "root",...

1 answer below »
Reverse engineer the starter code provided and create a tutorial for the code.In the Develop folder, there is starter code for a project. Begin inspecting the code to get an understanding of each file's responsibility. Then, in a Google Doc, write a tutorial explaining every file and its purpose. If one file is dependant on other files, be sure to let the user know.
At the end of the tutorial, add instructions for how you could now add changes to this project.


Develop/config/config.json { "development": { "username": "root", "password": "root", "database": "passport_demo", "host": "127.0.0.1", "dialect": "mysql" }, "test": { "username": "root", "password": "root", "database": "database_test", "host": "127.0.0.1", "dialect": "mysql" }, "production": { "username": "root", "password": "root", "database": "database_production", "host": "127.0.0.1", "dialect": "mysql" } } Develop/config/middleware/isAuthenticated.js // This is middleware for restricting routes a user is not allowed to visit if not logged in module.exports = function(req, res, next) { // If the user is logged in, continue with the request to the restricted route if (req.user) { return next(); } // If the user isn't logged in, redirect them to the login page return res.redirect("/"); }; Develop/config/passport.js const passport = require("passport"); const LocalStrategy = require("passport-local").Strategy; const db = require("../models"); // Telling passport we want to use a Local Strategy. In other words, we want login with a username/email and password passport.use(new LocalStrategy( // Our user will sign in using an email, rather than a "username" { usernameField: "email" }, function(email, password, done) { // When a user tries to sign in this code runs db.User.findOne({ where: { email: email } }).then(function(dbUser) { // If there's no user with the given email if (!dbUser) { return done(null, false, { message: "Incorrect email." }); } // If there is a user with the given email, but the password the user gives us is incorrect else if (!dbUser.validPassword(password)) { return done(null, false, { message: "Incorrect password." }); } // If none of the above, return the user return done(null, dbUser); }); } )); // In order to help keep authentication state across HTTP requests, // Sequelize needs to serialize and deserialize the user // Just consider this part boilerplate needed to make it all work passport.serializeUser(function(user, cb) { cb(null, user); }); passport.deserializeUser(function(obj, cb) { cb(null, obj); }); // Exporting our configured passport module.exports = passport; Develop/models/index.js 'use strict'; const fs = require('fs'); const path = require('path'); const Sequelize = require('sequelize'); const basename = path.basename(module.filename); const env = process.env.NODE_ENV || 'development'; const config = require(__dirname + '/../config/config.json')[env]; const db = {}; let sequelize; if (config.use_env_variable) { sequelize = new Sequelize(process.env[config.use_env_variable]); } else { sequelize = new Sequelize(config.database, config.username, config.password, config); } fs .readdirSync(__dirname) .filter(function(file) { return (file.indexOf('.') !== 0) && (file !== basename) && (file.slice(-3) === '.js'); }) .forEach(function(file) { let model = sequelize['import'](path.join(__dirname, file)); db[model.name] = model; }); Object.keys(db).forEach(function(modelName) { if (db[modelName].associate) { db[modelName].associate(db); } }); db.sequelize = sequelize; db.Sequelize = Sequelize; module.exports = db; Develop/models/user.js // Requiring bcrypt for password hashing. Using the bcryptjs version as the regular bcrypt module sometimes causes errors on Windows machines const bcrypt = require("bcryptjs"); // Creating our User model module.exports = function(sequelize, DataTypes) { const User = sequelize.define("User", { // The email cannot be null, and must be a proper email before creation email: { type: DataTypes.STRING, allowNull: false, unique: true, validate: { isEmail: true } }, // The password cannot be null password: { type: DataTypes.STRING, allowNull: false } }); // Creating a custom method for our User model. This will check if an unhashed password entered by the user can be compared to the hashed password stored in our database User.prototype.validPassword = function(password) { return bcrypt.compareSync(password, this.password); }; // Hooks are automatic methods that run during various phases of the User Model lifecycle // In this case, before a User is created, we will automatically hash their password User.addHook("beforeCreate", function(user) { user.password = bcrypt.hashSync(user.password, bcrypt.genSaltSync(10), null); }); return User; }; Develop/package.json { "name": "1-Passport-Example", "version": "1.0.0", "description": "", "main": "server.js", "scripts": { "test": "echo \"Error: no test specified\" && exit 1", "start": "node server.js", "watch": "nodemon server.js" }, "keywords": [], "author": "", "license": "ISC", "dependencies": { "bcryptjs": "2.4.3", "express": "^4.17.0", "express-session": "^1.16.1", "mysql2": "^1.6.5", "passport": "^0.4.0", "passport-local": "^1.0.0", "sequelize": "^5.8.6" } } Develop/public/js/login.js $(document).ready(function() { // Getting references to our form and inputs let loginForm = $("form.login"); let emailInput = $("input#email-input"); let passwordInput = $("input#password-input"); // When the form is submitted, we validate there's an email and password entered loginForm.on("submit", function(event) { event.preventDefault(); let userData = { email: emailInput.val().trim(), password: passwordInput.val().trim() }; if (!userData.email || !userData.password) { return; } // If we have an email and password we run the loginUser function and clear the form loginUser(userData.email, userData.password); emailInput.val(""); passwordInput.val(""); }); // loginUser does a post to our "api/login" route and if successful, redirects us the the members page function loginUser(email, password) { $.post("/api/login", { email: email, password: password }) .then(function() { window.location.replace("/members"); // If there's an error, log the error }) .catch(err => { console.log(err); }); } }); Develop/public/js/members.js $(document).ready(function() { // This file just does a GET request to figure out which user is logged in // and updates the HTML on the page $.get("/api/user_data").then(data => { $(".member-name").text(data.email); }); }); Develop/public/js/signup.js $(document).ready(function() { // Getting references to our form and input let signUpForm = $("form.signup"); let emailInput = $("input#email-input"); let passwordInput = $("input#password-input"); // When the signup button is clicked, we validate the email and password are not blank signUpForm.on("submit", function(event) { event.preventDefault(); let userData = { email: emailInput.val().trim(), password: passwordInput.val().trim() }; if (!userData.email || !userData.password) { return; } // If we have an email and password, run the signUpUser function signUpUser(userData.email, userData.password); emailInput.val(""); passwordInput.val(""); }); // Does a post to the signup route. If successful, we are redirected to the members page // Otherwise we log any errors function signUpUser(email, password) { $.post("/api/signup", { email: email, password: password }) .then(data => { window.location.replace("/members"); // If there's an error, handle it by throwing up a bootstrap alert }) .catch(handleLoginErr); } function handleLoginErr(err) { $("#alert .msg").text(err.responseJSON); $("#alert").fadeIn(500); } }); Develop/public/login.html Login Form Email address
develop-y5npx0wu.zip
Answered Same DayApr 06, 2021

Answer To: Develop/config/config.json { "development": { "username": "root", "password": "root", "database":...

Kunal answered on Apr 13 2021
151 Votes
config/config.json
{
"development": {
"username": "root",
"password": "",
"database": "passport_demo",
"host": "127.0.0.1",
"dialect": "mysql"
},
"test": {
"username": "root",
"password": "root",
"database": "database_test",
"host": "127.0.0.1",
"dialect": "mysql"
},
"production": {
"username": "root",
"password": "root",
"database": "database_production",
"host": "127.0.0.1",
"dialect": "mysql"
}
}
config/middleware/isAuthenticated.js
// This is middleware for restricting routes a user is not allowed to visit if not logged in
module.exports = function(req, res, next) {
// If the user is logged in, continue with the request to the restricted route
if (req.user) {
return next();
}

// If the user isn't logged in, redirect them to the login page
return res.redirect("/");
};
config/passport.js
const passport = require("passport");
const LocalStrategy = require("passport-local").Strategy;
const db = require("../models");
// Telling passport we want to use a Local Strategy. In other words, we want login with a username/email and password
passport.use(new LocalStrategy(
// Our user will sign in using an email, rather than a "username"
{
usernameField: "email"
},
function(email, password, done) {
// When a user tries to sign in this code runs
db.User.findOne({
where: {
email: email
}
}).then(function(dbUser) {
// If there's no user with the given email
if (!dbUser) {
return done(null, false, {
message: "Incorrect email."
});
}
// If there is a user with the given email, but the password the user gives us is incorrect
else if (!dbUser.validPassword(password)) {
return done(null, false, {
message: "Incorrect password."
});
}
// If none of the above, return the user
return done(null, dbUser);
});
}
));
// In order to help keep authentication state across HTTP requests,
// Sequelize needs to serialize and deserialize the user
// Just consider this part boilerplate needed to make it all work
passport.serializeUser(function(user, cb) {
cb(null, user);
});
passport.deserializeUser(function(obj, cb) {
cb(null, obj);
});
// Exporting our configured passport
module.exports = passport;
models/index.js
'use strict';
const fs = require('fs');
const path = require('path');
const Sequelize = require('sequelize');
const basename = path.basename(module.filename);
const env = process.env.NODE_ENV || 'development';
const config = require(__dirname + '/../config/config.json')[env];
const db = {};
let sequelize;
if (config.use_env_variable) {
sequelize = new Sequelize(process.env[config.use_env_variable]);
} else {
sequelize = new Sequelize(config.database, config.username, config.password, config);
}
fs
.readdirSync(__dirname)
.filter(function(file) {
return (file.indexOf('.') !== 0) && (file !== basename) && (file.slice(-3) === '.js');
})
.forEach(function(file) {
let model = sequelize['import'](path.join(__dirname, file));
db[model.name] = model;
});
Object.keys(db).forEach(function(modelName) {
if (db[modelName].associate) {
db[modelName].associate(db);
}
});
db.sequelize = sequelize;
db.Sequelize = Sequelize;
module.exports = db;
models/user.js
// Requiring bcrypt for password hashing. Using the bcryptjs version as the regular bcrypt module sometimes causes errors on Windows machines
const bcrypt = require("bcryptjs");
// Creating our User model
module.exports = function(sequelize, DataTypes) {
const User = sequelize.define("User", {
// The email cannot be null, and must be a proper email before creation
email: {
type: DataTypes.STRING,
allowNull: false,
unique: true,
validate: {
isEmail: true
}
},
// The password cannot be null
password: {
type: DataTypes.STRING,
allowNull: false
}
});
// Creating a custom method for our User model. This will check if an unhashed password entered by the user can be compared to the hashed password stored in our database
User.prototype.validPassword = function(password) {
return bcrypt.compareSync(password, this.password);
};
// Hooks are automatic methods that run during various phases of the User Model lifecycle
// In this case, before a User is created, we will automatically hash their password
User.addHook("beforeCreate", function(user) {
user.password = bcrypt.hashSync(user.password, bcrypt.genSaltSync(10), null);
});
return User;
};
package-lock.json
{
"name": "1-Passport-Example",
"version": "1.0.0",
"lockfileVersion": 1,
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}
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"array-flatten": {
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"bcryptjs": {
"version": "2.4.3",
"resolved": "https://registry.npmjs.org/bcryptjs/-/bcryptjs-2.4.3.tgz",
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