R01-Amy Hung

.env.example

@@ -0,0 +1 @@
+IMGUR_CLIENT_ID=

Procfile

@@ -0,0 +1 @@
+web: NODE_ENV=production node app.js

app.js

@@ -1,9 +1,38 @@
+const path = require('path')
 const express = require('express')
+const handlebars = require('express-handlebars')
+const methodOverride = require('method-override')
+const flash = require('connect-flash')
+const session = require('express-session')
+const passport = require('./config/passport')
+const handlebarsHelpers = require('./helpers/handlebars-helpers')
+const { getUser } = require('./helpers/auth-helpers')
 const routes = require('./routes')
-
+if (process.env.NODE_ENV !== 'production') {
+  require('dotenv').config()
+}
 const app = express()
 const port = process.env.PORT || 3000
+const SESSION_SECRET = 'secret'
 
+// 註冊 Handlebars 樣板引擎，並指定副檔名為 .hbs
+app.engine('hbs', handlebars({ extname: '.hbs', helpers: handlebarsHelpers }))
+// 設定使用 Handlebars 做為樣板引擎
+app.set('view engine', 'hbs')
+app.use(express.urlencoded({ extended: true }))
+app.use(session({ secret: SESSION_SECRET, resave: false, saveUninitialized: false }))
+app.use(passport.initialize())
+app.use(passport.session())
+app.use(flash())
+app.use(methodOverride('_method'))
+// 因為是靜態檔案，所以不需要像其他的路由一樣寫 controller 邏輯，直接用 express.static 來指定路徑就可以了
+app.use('/upload', express.static(path.join(__dirname, 'upload')))
+app.use((req, res, next) => {
+  res.locals.success_messages = req.flash('success_messages') // 設定 success_msg 訊息
+  res.locals.error_messages = req.flash('error_messages') // 設定 warning_msg 訊息
+  res.locals.user = getUser(req)
+  next()
+})
 app.use(routes)
 
 app.listen(port, () => {

config/config.json

@@ -7,11 +7,7 @@
     "dialect": "mysql"
   },
   "production": {
-    "username": "root",
-    "password": null,
-    "database": "database_production",
-    "host": "127.0.0.1",
-    "dialect": "mysql"
+    "use_env_variable": "MYSQL_DATABASE_URL" 
   },
   "travis": {
     "username": "travis",

config/passport.js

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+const passport = require('passport')
+const LocalStrategy = require('passport-local')
+const bcrypt = require('bcryptjs')
+const db = require('../models')
+const User = db.User
+// set up Passport strategy
+passport.use(new LocalStrategy(
+  // customize user field
+  {
+    usernameField: 'email',
+    passwordField: 'password',
+    passReqToCallback: true
+  },
+  // authenticate user
+  (req, email, password, cb) => {
+    User.findOne({ where: { email } })
+      .then(user => {
+        if (!user) return cb(null, false, req.flash('error_messages', '帳號或密碼輸入錯誤！'))
+        bcrypt.compare(password, user.password).then(res => {
+          if (!res) return cb(null, false, req.flash('error_messages', '帳號或密碼輸入錯誤！'))
+          return cb(null, user)
+        })
+      })
+  }
+))
+// serialize and deserialize user
+passport.serializeUser((user, cb) => {
+  cb(null, user.id)
+})
+passport.deserializeUser((id, cb) => {
+  User.findByPk(id).then(user => {
+    return cb(null, user)
+  })
+})
+module.exports = passport

controllers/admin-controller.js

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+const { Restaurant, User } = require('../models')
+const { imgurFileHandler } = require('../helpers/file-helpers')
+const adminController = {
+  getRestaurants: (req, res, next) => {
+    return Restaurant.findAll({
+      raw: true
+    })
+      .then(restaurants => res.render('admin/restaurants', { restaurants }))
+      .catch(err => next(err))
+  },
+  createRestaurant: (req, res) => {
+    return res.render('admin/create-restaurant')
+  },
+  postRestaurant: (req, res, next) => {
+    const { name, tel, address, openingHours, description } = req.body // 從 req.body 拿出表單裡的資料
+    if (!name) throw new Error('Restaurant name is required!') // name 是必填，若發先是空值就會終止程式碼，並在畫面顯示錯誤提示
+    const { file } = req // 把檔案取出來，也可以寫成 const file = req.file
+    return imgurFileHandler(file) // 把取出的檔案傳給 file-helper 處理後
+      .then(filePath => Restaurant.create({ // 再 create 這筆餐廳資料
+        name,
+        tel,
+        address,
+        openingHours,
+        description,
+        image: filePath || null
+      }))
+      .then(() => {
+        req.flash('success_messages', 'restaurant was successfully created')
+        res.redirect('/admin/restaurants')
+      })
+      .catch(err => next(err))
+  },
+  getRestaurant: (req, res, next) => {
+    return Restaurant.findByPk(req.params.id, {
+      raw: true
+    })
+      .then(restaurant => {
+        if (!restaurant) throw new Error("Restaurant didn't exist!")
+        res.render('admin/restaurant', { restaurant })
+      })
+      .catch(err => next(err))
+  },
+  editRestaurant: (req, res, next) => {
+    return Restaurant.findByPk(req.params.id, {
+      raw: true
+    })
+      .then(restaurant => {
+        if (!restaurant) throw new Error("Restaurant didn't exist!")
+        res.render('admin/edit-restaurant', { restaurant })
+      })
+      .catch(err => next(err))
+  },
+  putRestaurant: (req, res, next) => {
+    const { name, tel, address, openingHours, description } = req.body
+    if (!name) throw new Error('Restaurant name is required!')
+    // NOTE: 這一段沒有設定 { raw: true } 因為這邊會需要 update
+    // 編輯情境裡是不會加 { raw: true }!!
+    const { file } = req // 把檔案取出來
+    return Promise.all([ // 非同步處理
+      Restaurant.findByPk(req.params.id), // 去資料庫查有沒有這間餐廳
+      imgurFileHandler(file) // 把檔案傳到 file-helper 處理
+    ])
+      .then(([restaurant, filePath]) => { // 以上兩樣事都做完以後
+        if (!restaurant) throw new Error("Restaurant didn't exist!")
+        return restaurant.update({ // 修改這筆資料
+          name,
+          tel,
+          address,
+          openingHours,
+          description,
+          image: filePath || restaurant.image // 如果 filePath 是 Truthy (使用者有上傳新照片) 就用 filePath，是 Falsy (使用者沒有上傳新照片) 就沿用原本資料庫內的值
+        })
+      })
+      .then(() => {
+        req.flash('success_messages', 'restaurant was successfully to update')
+        res.redirect('/admin/restaurants')
+      })
+      .catch(err => next(err))
+  },
+  deleteRestaurant: (req, res, next) => {
+    return Restaurant.findByPk(req.params.id)
+      .then(restaurant => {
+        if (!restaurant) throw new Error("Restaurant didn't exist!")
+        return restaurant.destroy()
+      })
+      .then(() => res.redirect('/admin/restaurants'))
+      .catch(err => next(err))
+  },
+  getUsers: (req, res, next) => {
+    return User.findAll({
+      raw: true
+    })
+      .then(users => res.render('admin/users', { users }))
+      .catch(err => next(err))
+  },
+  patchUser: (req, res, next) => {
+    return User.findByPk(req.params.id)
+      .then(user => {
+        if (user.email === 'root@example.com') {
+          req.flash('error_messages', '禁止變更 root 權限')
+          res.redirect('back')
+        } else {
+          user.update({
+            isAdmin: !user.isAdmin
+          })
+          req.flash('success_messages', '使用者權限變更成功')
+        }
+      })
+      .then(() => res.redirect('/admin/users'))
+      .catch(err => next(err))
+  }
+}
+
+module.exports = adminController

controllers/restaurant-controller.js

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+const restaurantController = {
+  getRestaurants: (req, res) => {
+    return res.render('restaurants')
+  }
+}
+module.exports = restaurantController

controllers/user-controller.js

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+const bcrypt = require('bcryptjs') // 載入 bcrypt
+const db = require('../models')
+const { User } = db
+const userController = {
+  signUpPage: (req, res) => {
+    res.render('signup')
+  },
+  signUp: (req, res, next) => {
+    // 如果兩次輸入的密碼不同，就建立一個 Error 物件並拋出
+    if (req.body.password !== req.body.passwordCheck) throw new Error('Passwords do not match!')
+
+    // 確認資料裡面沒有一樣的 email，若有，就建立一個 Error 物件並拋出
+    User.findOne({ where: { email: req.body.email } })
+      .then(user => {
+        if (user) throw new Error('Email already exists!')
+        return bcrypt.hash(req.body.password, 10) // 前面加 return
+      })
+      .then(hash => User.create({ // 上面錯誤狀況都沒發生，就把使用者的資料寫入資料庫
+        name: req.body.name,
+        email: req.body.email,
+        password: hash
+      }))
+      .then(() => {
+        req.flash('success_messages', '成功註冊帳號！') // 並顯示成功訊息
+        res.redirect('/signin')
+      })
+      .catch(err => next(err)) // 接住前面拋出的錯誤，呼叫專門做錯誤處理的 middleware
+  },
+  signInPage: (req, res) => {
+    res.render('signin')
+  },
+  signIn: (req, res) => {
+    req.flash('success_messages', '成功登入！')
+    res.redirect('/restaurants')
+  },
+  logout: (req, res) => {
+    req.flash('success_messages', '登出成功！')
+    req.logout()
+    res.redirect('/signin')
+  }
+}
+module.exports = userController

helpers/auth-helpers.js

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+const getUser = req => {
+  return req.user || null
+}
+const ensureAuthenticated = req => {
+  return req.isAuthenticated()
+}
+module.exports = {
+  getUser,
+  ensureAuthenticated
+}

helpers/file-helpers.js

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+const fs = require('fs') // 引入 fs 模組
+const imgur = require('imgur')
+const IMGUR_CLIENT_ID = process.env.IMGUR_CLIENT_ID
+imgur.setClientId(IMGUR_CLIENT_ID)
+const localFileHandler = file => { // file 是 multer 處理完的檔案
+  return new Promise((resolve, reject) => {
+    if (!file) return resolve(null)
+    const fileName = `upload/${file.originalname}`
+    return fs.promises.readFile(file.path)
+      .then(data => fs.promises.writeFile(fileName, data))
+      .then(() => resolve(`/${fileName}`))
+      .catch(err => reject(err))
+  })
+}
+const imgurFileHandler = file => {
+  return new Promise((resolve, reject) => {
+    if (!file) return resolve(null)
+    return imgur.uploadFile(file.path)
+      .then(img => {
+        resolve(img?.link || null) // 檢查 img 是否存在
+      })
+      .catch(err => reject(err))
+  })
+}
+module.exports = {
+  localFileHandler,
+  imgurFileHandler
+}

helpers/handlebars-helpers.js

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+const dayjs = require('dayjs') // 載入 dayjs 套件
+module.exports = {
+  currentYear: () => dayjs().year() // 取得當年年份作為 currentYear 的屬性值，並導出
+}