Baljit's Instagram challenge

.eslintrc.js

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+module.exports = {
+  "env": {
+      "browser": true,
+      "commonjs": true,
+      "es2021": true
+  },
+  "parserOptions": {
+      "ecmaVersion": "latest"
+  },
+  "rules": {
+  }
+}

.eslintrc.json

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+{
+    "env": {
+        "browser": true,
+        "es2021": true
+    },
+    "extends": [
+        "google"
+    ],
+    "parserOptions": {
+        "ecmaVersion": "latest",
+        "sourceType": "module"
+    },
+    "rules": {
+    }
+}

.gitignore

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+# Logs
+logs
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+
+# Runtime data
+pids
+*.pid
+*.seed
+*.pid.lock
+
+# Directory for instrumented libs generated by jscoverage/JSCover
+lib-cov
+
+# Coverage directory used by tools like istanbul
+coverage
+
+# nyc test coverage
+.nyc_output
+
+# Grunt intermediate storage (http://gruntjs.com/creating-plugins#storing-task-files)
+.grunt
+
+# Bower dependency directory (https://bower.io/)
+bower_components
+
+# node-waf configuration
+.lock-wscript
+
+# Compiled binary addons (https://nodejs.org/api/addons.html)
+build/Release
+
+# Dependency directories
+node_modules/
+jspm_packages/
+
+# TypeScript v1 declaration files
+typings/
+
+# Optional npm cache directory
+.npm
+
+# Optional eslint cache
+.eslintcache
+
+# Optional REPL history
+.node_repl_history
+
+# Output of 'npm pack'
+*.tgz
+
+# Yarn Integrity file
+.yarn-integrity
+
+# dotenv environment variables file
+.env
+
+# next.js build output
+.next
+
+# cypress.io
+cypress/screenshots
+cypress/videos

.vscode/settings.json

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+{
+  "json.maxItemsComputed": 50000
+}

app.js

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+const createError = require('http-errors')
+const express = require('express')
+const path = require('path')
+const cookieParser = require('cookie-parser')
+const logger = require('morgan')
+const session = require('express-session')
+const methodOverride = require('method-override')
+var multer = require('multer')
+const fs = require('fs');
+
+const homeRouter = require('./routes/home')
+const postsRouter = require('./routes/posts')
+const sessionsRouter = require('./routes/sessions')
+const usersRouter = require('./routes/users')
+
+const app = express()
+
+// view engine setup
+app.set('views', path.join(__dirname, 'views'))
+app.set('view engine', 'hbs')
+
+app.use(logger('dev'))
+app.use(express.json())
+app.use(express.urlencoded({ extended: true }))
+app.use(cookieParser())
+app.use(express.static(path.join(__dirname, 'public')))
+app.use(methodOverride('_method'))
+
+app.use(
+  session({
+    key: 'user_sid',
+    secret: 'super_secret',
+    resave: false,
+    saveUninitialized: false,
+    cookie: {
+      expires: 600000
+    }
+  })
+)
+
+// clear the cookies after user logs out
+app.use((req, res, next) => {
+  if (req.cookies.user_sid && !req.session.user) {
+    res.clearCookie('user_sid')
+  }
+  next()
+})
+
+// middleware function to check for logged-in users
+const sessionChecker = (req, res, next) => {
+  if (!req.session.user && !req.cookies.user_sid) {
+    res.redirect('/sessions/new')
+  } else {
+    next()
+  }
+}
+
+var storage = multer.diskStorage({
+  destination: (req,file, cb) => {
+    cb(null, 'uploads')
+  },
+  filename: (req, file, cb) => {
+    cb(null, file.fieldname + '-' + Date.now())
+  }
+});
+
+var upload = multer({ storage: storage});
+
+
+// route setup
+app.use('/', homeRouter)
+app.use('/posts', sessionChecker, postsRouter)
+app.use('/sessions', sessionsRouter)
+app.use('/users', usersRouter)
+
+// catch 404 and forward to error handler
+app.use((req, res, next) => {
+  next(createError(404))
+})
+
+// error handler
+app.use((err, req, res) => {
+  // set locals, only providing error in development
+  res.locals.message = err.message
+  res.locals.error = req.app.get('env') === 'development' ? err : {}
+
+  // render the error page
+  res.status(err.status || 500)
+  res.render('error')
+})
+
+module.exports = app

bin/www

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+#!/usr/bin/env node
+
+/**
+ * Module dependencies.
+ */
+
+const app = require('../app')
+const debug = require('debug')('instagram-challenge:server')
+const http = require('http')
+const mongoose = require('mongoose')
+
+/**
+ * Get port from environment and store in Express.
+ */
+
+const port = normalizePort(process.env.PORT || '3000')
+app.set('port', port)
+
+/**
+ * Connect to MongoDB
+ **/
+
+const mongoDbUrl = process.env.MONGODB_URL || 'mongodb://127.0.0.1/instagram'
+
+mongoose.connect(mongoDbUrl, {
+  useNewUrlParser: true,
+  useUnifiedTopology: true
+})
+
+const db = mongoose.connection
+db.on('error', console.error.bind(console, 'MongoDB connection error:'))
+
+/**
+  * Create HTTP server.
+  */
+
+const server = http.createServer(app)
+
+/**
+  * Listen on provided port, on all network interfaces.
+  */
+
+server.listen(port)
+server.on('error', onError)
+server.on('listening', onListening)
+
+/**
+  * Normalize a port into a number, string, or false.
+  */
+
+function normalizePort (val) {
+  const port = parseInt(val, 10)
+
+  if (isNaN(port)) {
+    // named pipe
+    return val
+  }
+
+  if (port >= 0) {
+    // port number
+    return port
+  }
+
+  return false
+}
+
+/**
+  * Event listener for HTTP server "error" event.
+  */
+
+function onError (error) {
+  if (error.syscall !== 'listen') {
+    throw error
+  }
+
+  const bind = typeof port === 'string' ? 'Pipe ' + port : 'Port ' + port
+
+  // handle specific listen errors with friendly messages
+  switch (error.code) {
+    case 'EACCES':
+      console.error(bind + ' requires elevated privileges')
+      process.exit(1)
+      break
+    case 'EADDRINUSE':
+      console.error(bind + ' is already in use')
+      process.exit(1)
+      break
+    default:
+      throw error
+  }
+}
+
+/**
+  * Event listener for HTTP server "listening" event.
+  */
+
+function onListening () {
+  const addr = server.address()
+  const bind = typeof addr === 'string' ? 'pipe ' + addr : 'port ' + addr.port
+  console.log('Now listening on ' + bind)
+  debug('Listening on ' + bind)
+}

controllers/home.js

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+const HomeController = {
+  Index: (req, res) => {
+    res.render('home/index', { title: 'Instagram' })
+  }
+}
+
+module.exports = HomeController

controllers/posts.js

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+const Post = require("../models/post");
+const fs = require('fs');
+
+const PostsController = {
+  Index: (req, res) => {
+    Post.find((err, posts) => {
+      if (err) {
+        throw err;
+      }
+
+      res.render("posts/index", { posts: posts });
+    });
+  },
+  New: (req, res) => {
+    res.render("posts/new", {});
+  },
+  Create: (req, res) => {
+    var obj = {
+      message: req.body,
+      img:
+      {
+        data: fs.readFileSync(path.join(__dirname + '/uploads/' + req.file.filename)),
+        contentType: 'image/png'
+      }
+    }
+    const post = new Post(obj);
+    post.save((err) => {
+      if (err) {
+        throw err;
+      }
+
+      res.status(201).redirect("/posts");
+    });
+  },
+};
+
+module.exports = PostsController;

controllers/sessions.js

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+const User = require("../models/user");
+
+const SessionsController = {
+  New: (req, res) => {
+    res.render("sessions/new", {});
+  },
+
+  Create: (req, res) => {
+    console.log("trying to log in");
+    const email = req.body.email;
+    const password = req.body.password;
+
+    User.findOne({ email: email }).then((user) => {
+      if (!user) {
+        res.redirect("/sessions/new");
+      } else if (user.password != password) {
+        res.redirect("/sessions/new");
+      } else {
+        req.session.user = user;
+        res.redirect("/posts");
+      }
+    });
+  },
+
+  Destroy: (req, res) => {
+    console.log("logging out");
+    if (req.session.user && req.cookies.user_sid) {
+      res.clearCookie("user_sid");
+    }
+    res.redirect("/sessions/new");
+  },
+};
+
+module.exports = SessionsController;

controllers/users.js

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+const User = require('../models/user')
+
+const UsersController = {
+  New: (req, res) => {
+    res.render('users/new', {})
+  },
+
+  Create: (req, res) => {
+    const user = new User(req.body)
+    user.save((err) => {
+      if (err) {
+        throw err
+      }
+      res.status(201).redirect('/posts')
+    })
+  }
+}
+
+module.exports = UsersController