Week18 完成

homeworks/week17/hw1/blog/blog.js

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+const express = require('express')
+const bodyParser = require('body-parser')
+const session = require('express-session')
+const flash = require('connect-flash');
+const blogController = require('./controllers/blog.js')
+const userController = require('./controllers/user.js')
+
+const app = express()
+const port = 5001
+
+app.set('view engine', 'ejs')
+app.use(bodyParser.urlencoded({ extended: false }))
+app.use(bodyParser.json())
+app.use(session({
+  secret: 'keyboard cat',
+  resave: false,
+  saveUninitialized: true,
+}))
+app.use(flash())
+app.use(express.static(__dirname + '/public'));
+
+app.use((req, res, next) => {
+  res.locals.userId = req.session.userId || null;
+  res.locals.errorMessage = req.flash('errorMessage');
+  next();
+})
+
+app.get('/blog', blogController.init)
+app.get('/article/:id', blogController.get)
+app.get('/addArticle', blogController.addArticle)
+app.get('/admin', blogController.admin)
+app.get('/register', userController.register)
+app.get('/login', userController.login)
+app.get('/logout', userController.logout)
+app.get('/update/:id', blogController.updateArticle)
+app.get('/delete/:id', blogController.deleteArticle)
+
+app.post('/article', blogController.handleAddArticle)
+app.post('/login', userController.handleLogin)
+app.post('/register', userController.handleRegister)
+app.post('/update/:id', blogController.handleUpdateArticle)
+
+app.listen(port, () => {
+  console.log(`App listening on port ${port}`)
+})

homeworks/week17/hw1/blog/config/config.json

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+{
+  "development": {
+    "username": "root",
+    "password": "Ss121549!",
+    "database": "test",
+    "host": "3.23.99.109",
+    "dialect": "mysql"
+  },
+  "test": {
+    "username": "root",
+    "password": null,
+    "database": "database_test",
+    "host": "127.0.0.1",
+    "dialect": "mysql"
+  },
+  "production": {
+    "username": "root",
+    "password": null,
+    "database": "database_production",
+    "host": "127.0.0.1",
+    "dialect": "mysql"
+  }
+}

homeworks/week17/hw1/blog/controllers/blog.js

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+const utilis = require('../utilis.js')
+const db = require('../models')
+const { Op } = require("sequelize");
+const User = db.User
+const Article = db.Article
+const Tag = db.Tags
+
+const blogController = {
+  init: (req, res) => {
+    utilis.getUserInfoById(req.session.userId, (user) => {
+      Article.findAll({
+        where: {isDeleted: 0},
+        order:[['id', 'DESC']],
+        include: User,
+        include: Tag
+      }).then(articles => {
+        res.render('blog', { 
+          user,
+          articles,
+        })
+      }).catch(error => {
+        console.log(error)
+        res.redirect('/blog')
+      })
+    })
+  },
+
+  admin: (req, res) => {
+    if(!req.session.userId) return res.redirect('/blog')
+    utilis.getUserInfoById(req.session.userId, user => {
+      if(user.authType !== '1') return res.redirect('/blog')
+      Article.findAll({
+        where: {isDeleted: 0},
+        order:[['id', 'DESC']],
+        include: User
+      }).then(articles => {
+        res.render('admin',{
+          user,
+          articles,
+        })
+      }).catch(error => {
+        console.log(error)
+        res.redirect('/blog')
+      })
+    })
+  },
+
+  getAll: (req, res) => {
+    Article.findAll({
+      where: {isDeleted: 0},
+      include: User
+    }).then(articles => {
+      res.render('blog', { 
+        articles: articles
+      })
+    }).catch(error => {
+      console.log(error)
+      res.redirect('/blog')
+    })
+  },
+
+  get: (req, res) => {
+    const id = req.params.id
+    Article.findByPk(id,{
+      include: Tag
+    }).then(article => {
+      if(!article) {
+        console.log('Inavlid article Id')
+        res.redirect('/blog')
+        return
+      }
+      if(article.isDeleted === 1) return res.redirect('/blog')
+      res.render('readMore', {
+        user: article.UserId || 0,
+        article,
+      })
+    })
+  },
+
+  addArticle: (req, res) => {
+    const userId = req.session.userId
+    if(!userId) return res.redirect('/blog')
+    utilis.getUserInfoById(userId, user => {
+      if(user.authType !== '1') {
+        return res.redirect('/blog')
+      }
+      utilis.getAllTags(tags => {
+        res.render('addArticle', {
+          user,
+          tags,
+        })
+      })
+    })
+  },
+
+  handleAddArticle: (req, res) => {
+    const {title, TagId, content} = req.body
+    const UserId = req.session.userId
+    if(!title || !TagId || !content) {
+      req.flash('errorMessage', '請填入所有欄位')
+      return res.redirect('/addArticle')
+    }
+    Article.create({
+      UserId,
+      title,
+      TagId,
+      content,
+    }).then(newArticle => {
+      res.redirect('/blog')
+    }).catch(error => {
+      console.log(error)
+      req.flash('errorMessage', '新增文章失敗')
+      return res.redirect('/addArticle')
+    })
+  },
+
+  updateArticle: (req, res) => {
+    const userId = req.session.userId
+    const ArticleId = req.params.id
+    if(!userId) return res.redirect('/blog')
+    Article.findByPk(ArticleId, {
+      include: [User, Tag]
+    }).then(article => {
+      if(article.isDeleted === 1) return res.redirect('/blog')
+      Tag.findAll({
+        where: {
+          id: {[Op.ne]:article.TagId}
+        }
+      }).then(tags => {
+        res.render('updateArticle', {
+          article,
+          user: article.User,
+          tags,
+        })
+      })
+    })
+  },
+
+  handleUpdateArticle: (req, res) => {
+    const ArticleId = req.params.id
+    const {title, TagId, content} = req.body
+    if(!title || !TagId || !content) {
+      req.flash('errorMessage', '請填入所有欄位')
+      return res.redirect(`/update/${ArticleId}`)
+    }
+    Article.update({
+      title,
+      TagId,
+      content,
+    },{where: {id: ArticleId}}).then(newArticle => {
+      res.redirect('/blog')
+    }).catch(error => {
+      console.log(error)
+      req.flash('errorMessage', '更新文章失敗')
+      return res.redirect(`/update/${ArticleId}`)
+    })
+  },
+
+  deleteArticle: (req, res) => {
+    const ArticleId = req.params.id
+    const sessionUserId = req.session.userId
+    Article.findByPk(ArticleId).then(article => {
+      if(article.UserId !== sessionUserId){
+        return res.redirect('/admin')
+      }
+      Article.update({
+        isDeleted: 1,
+      },{where: {id: ArticleId}}).then(newArticle => {
+        res.redirect('/admin')
+      }).catch(error => {
+        console.log(error)
+        req.flash('errorMessage', '刪除文章失敗')
+        return res.redirect('/admin')
+      })
+    })
+  }
+}
+
+module.exports = blogController

homeworks/week17/hw1/blog/controllers/user.js

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+const db = require('../models')
+const User = db.User
+const Article = db.Article
+const bcrypt = require('bcrypt');
+  const saltRounds = 10;
+  const myPlaintextPassword = 's0/\/\P4$$w0rD';
+  const someOtherPlaintextPassword = 'not_bacon';
+
+const userController = {
+  register: (req, res) => {
+    res.render('register')
+  },
+
+  handleRegister: (req, res) => {
+    const {username, password, nickname} = req.body
+    if(!username || !password || !nickname) {
+      req.flash('errorMessage', '請填入所有欄位')
+      res.redirect('/register')
+      return
+    }
+
+    bcrypt.hash(password, saltRounds, (error, hash) => {
+      User.create(
+        {
+          username,
+          password: hash,
+          nickname,
+        }
+      ).then(user => {
+        req.session.userId = user.id;
+        res.redirect('/blog')
+      }).catch(error => {
+        req.flash('errorMessage', error)
+        res.redirect('/register')
+      })      
+    })
+  },
+
+  login: (req, res) => {
+    res.render('login')
+  },
+
+  logout: (req,res) => {
+    req.session.userId = null
+    res.redirect('/blog')
+  },
+
+  handleLogin: (req, res) => {
+    const {username, password} = req.body
+    if(!username || !password) {
+      req.flash('errorMessage', '請輸入帳號及密碼')
+      res.redirect('login')
+      return
+    }
+
+    User.findOne({
+      where: {
+        username,
+      }
+    }).then(user => {
+      if(!user) {
+        req.flash('errorMessage', '請輸入正確帳號及密碼')
+        res.redirect('login')
+        return
+      }
+      bcrypt.compare(user.password, password.toString(), (error, result) => {
+        if(error) {
+          req.flash('errorMessage', '請輸入正確帳號及密碼')
+          res.redirect('login')
+          return
+        }
+        req.session.userId = user.id;
+        res.redirect('blog')
+      });
+    }).catch(error => {
+      req.flash('errorMessage', error.Message)
+      res.redirect('login')
+    })
+  }
+}
+
+module.exports = userController

homeworks/week17/hw1/blog/migrations/20201012070746-create-article.js

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+'use strict';
+module.exports = {
+  up: async (queryInterface, Sequelize) => {
+    await queryInterface.createTable('Articles', {
+      id: {
+        allowNull: false,
+        autoIncrement: true,
+        primaryKey: true,
+        type: Sequelize.INTEGER
+      },
+      userId: {
+        type: Sequelize.INTEGER
+      },
+      title: {
+        type: Sequelize.STRING
+      },
+      content: {
+        type: Sequelize.TEXT
+      },
+      tagId: {
+        type: Sequelize.INTEGER
+      },
+      isDeleted: {
+        type: Sequelize.STRING
+      },
+      createdAt: {
+        allowNull: false,
+        type: Sequelize.DATE
+      },
+      updatedAt: {
+        allowNull: false,
+        type: Sequelize.DATE
+      }
+    });
+  },
+  down: async (queryInterface, Sequelize) => {
+    await queryInterface.dropTable('Articles');
+  }
+};