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Main.js
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Main.js
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const express = require("express");
const multer = require("multer");
const app = express();
const fs = require("fs");
const mysql = require("mysql2");
const hbs = require("hbs");
const { handlebars } = require("hbs");
app.set("view engine", "hbs");
app.listen(3000, () => console.log("Сервер запущен..."));
//новое соединение
const pool = mysql.createPool({
connectionLimit: 10,
host: "localhost",
user: "admin",
database: "testdatabase",
password: "admin"
});
hbs.registerHelper("CheckAvatar", function (variable) {
var login = variable;
var pathAvatar = __dirname + "\\uploads\\" + login + '.jpg';
if (fs.existsSync(pathAvatar)) {
return new handlebars.SafeString("<td>" + "<img src=../uploads/" + login + ".jpg alt=" + login + ".jpg></img></td>");
}
else {
return new handlebars.SafeString("<td>" + "<img src=../uploads/default.jpg alt=default.jpg></img></td>");
}
});
app.get("/users", function (request, response) {
pool.query("SELECT * FROM users", function (err, data) {
if (err) return console.log(err);
response.render("users.hbs", { users: data });
});
});
app.get("/feedbackOutput", function (request, response) {
pool.query("SELECT * FROM feedback", function (err, data) {
if (err) return console.log(err);
response.render("feedbackOutput.hbs", { feedback: data });
});
});
app.get("/feedback", function (request, response) {
response.sendFile(__dirname + "/feedback.html");
});
app.get("/authorization", function (request, response) {
response.sendFile(__dirname + "/authorization.html");
});
app.get('/Greetings.html', function (request, response) {
let userLogin1 = request.query.login;
fs.readFile("Greetings.html", "utf8", function (error, data) {
let header = "Здравствуйте, " + userLogin1;
data = data.replace("{header}", header);
response.send(data);
})
});
// создаем парсер для данных application/x-www-form-urlencoded
const urlencodedParser = express.urlencoded({ extended: false });
//переход на страницу
app.get("/", function (request, response) {
response.sendFile(__dirname + "/index.html");
});
//Настройка сохранения файла
const storageConfig = multer.diskStorage({
destination: (req, file, cb) => {
cb(null, "uploads");
},
filename: (req, file, cb) => {
cb(null, file.filename = file.originalname)
;
}
})
// определение фильтра
const fileFilter = (req, file, cb) => {
if (file.mimetype === "image/png" ||
file.mimetype === "image/jpg" ||
file.mimetype === "image/jpeg") {
cb(null, true);
}
else {
cb(null, false);
}
}
// загрузка файла
app.use(express.static(__dirname));
app.use(multer({ storage: storageConfig, fileFilter: fileFilter }).single("filedata"));
app.post("/Greetings.html", function (req, res, next) {
let filedata = req.file;
if (!filedata) {
let userLogin1 = req.query.login;
fs.readFile("Greetings.html", "utf8", function (error, data) {
let header = "Здравствуйте, " + userLogin1;
data = data.replace("{header}", header);
res.send(data + "<h1>Файл не загружен</h1>");
})
}
else {
let userLogin1 = req.query.login;
fs.readFile("Greetings.html", "utf8", function (error, data) {
let header = "Здравствуйте, " + userLogin1;
data = data.replace("{header}", header);
res.send(data + "<h1>Файл загружен</h1>");
})
fs.rename(__dirname + "\\" + filedata.path, __dirname + "\\uploads\\" + userLogin1 + '.jpg', function (err) {
if (err) console.log('ERROR: ' + err);
});
}
});
//загрузка данных с формы регистрации
app.post("/", urlencodedParser, function (request, response) {
{
if (!request.body) return response.sendStatus(400);
if (request.body.formName === "form1") {
const userLogin = request.body.userLogin;
const userSurname = request.body.userSurname;
const userName = request.body.userName;
const userPatronymic = request.body.userPatronymic;
const userEmail = request.body.userEmail;
const userPassword = request.body.userPassword;
const sql = `INSERT INTO users(login ,userSurname,userName,userPatronymic,email,password) VALUES(?,?,?,?,?,?)`;
response.redirect('/Greetings.html?login=' + userLogin);
pool.query(sql, [userLogin, userSurname, userName, userPatronymic, userEmail, userPassword], function (err, results) {
if (err) console.log(err);
});
}
}
});
//загрузка данных с формы обратной связи
app.post("/feedback.html", urlencodedParser, function (request, response) {
{
if (!request.body) return response.sendStatus(400);
const userName = request.body.userName;
const userEmail = request.body.userEmail;
const userQuestion = request.body.userQuestion;
const sql = `INSERT INTO feedback(name ,email,question) VALUES(?,?,?)`;
response.redirect("/feedback.html");
pool.query(sql, [userName, userEmail, userQuestion], function (err, results) {
if (err) console.log(err);
});
}
}
);
//загрузка данных с формы авторизации
app.post("/authorization.html", urlencodedParser, function (request, response) {
{
if (!request.body) return response.sendStatus(400);
const userLogin = request.body.userLogin;
const userPassword = request.body.userPassword;
const sql = `SELECT login, password FROM users WHERE login = (?)`;
pool.query(sql, [userLogin], function (err, results) {
if (err) console.log(err);
if (typeof results[0] != "undefined") {
if (userPassword== results[0].password) {
response.redirect('/Greetings.html?login=' + userLogin);
}
}
else
{
fs.readFile("authorization.html", "utf8", function (error, data) {
let header = "Такого пользователя не найдено";
data = data.replace("{Вход}", header);
response.send(data);
})
}
});
}
}
);