/
express_server.js
189 lines (172 loc) · 5.64 KB
/
express_server.js
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const express = require("express");
const bodyParser = require("body-parser");
const cookieSession = require('cookie-session');
const bcrypt = require('bcrypt');
const methodOverride = require('method-override');
const app = express();
const { getUserByEmail, generateRandomString, getUrlsForUser } = require('./helpers');
const {urlDatabase, users} = require('./data');
app.use(bodyParser.urlencoded({ extended: true }));
app.use(cookieSession({
name: 'session',
keys: process.env.session_keys || ['development'],
maxAge: 24 * 60 * 60 * 1000
}));
app.use(methodOverride('_method'));
app.use('/urls', function (req, res, next) {
if (req.session.user_id) {
res.redirect('/login');
} else {
next();
}
});
const PORT = 8080; // default port 8080
app.set("view engine", "ejs");
app.get("/", (req, res) => {
if (req.session.userID) {
res.redirect("/urls");
} else {
res.redirect("/login");
}
});
app.get("/urls", (req, res) => {
let filtered = getUrlsForUser(req.session.userID);
let templateVars = {
urls: filtered, user: users[req.session.userID]
};
res.render("urls_index", templateVars);
});
app.get("/register", (req, res) => {
let templateVars = {
urls: urlDatabase, user: users[req.session.userID]
};
res.render("register", templateVars);
});
app.get("/login", (req, res) => {
let templateVars = {
urls: urlDatabase, user: users[req.session.userID]
};
res.render("login", templateVars);
});
app.get("/urls/new", (req, res) => {
if (!req.session.userID) {
res.redirect("/login");
} else {
let templateVars = {
urls: urlDatabase, user: users[req.session.userID]
};
res.render("urls_new", templateVars);
}
});
app.post("/urls/", (req, res) => {
let random = generateRandomString();
urlDatabase[random] = {};
urlDatabase[random].longURL = req.body.longURL;
urlDatabase[random].userID = req.session.userID;
urlDatabase[random].visitors = new Set();
urlDatabase[random].visitorLog = [];
res.redirect("/urls/");
});
app.post("/login", (req, res) => {
let emails = [];
for (const user of Object.keys(users)) {
emails.push(users[user].email);
}
if (!emails.includes(req.body.email)) {
res.status(403);
res.send("Error, email is not registered.");
}
for (const user of Object.keys(users)) {
if (users[user].email === req.body.email && bcrypt.compareSync(req.body.password, users[user].password)) {
req.session.userID = user;
return res.redirect("/urls/");
}
if (users[user].email === req.body.email && !bcrypt.compareSync(req.body.password, users[user].password)) {
res.send("Email exists, passwords don't!");
}
}
});
app.post("/logout", (req, res) => {
req.session.userID = null;
res.redirect("/urls/");
});
app.post("/register", (req, res) => {
if (req.body.password === '') {
res.status(400);
res.send('None shall pass with an empty password');
}
if (getUserByEmail(req.body.email, users)) {
res.status(400);
res.send('User already exists!');
}
let random = generateRandomString();
users[random] = {};
users[random].id = random;
users[random].email = req.body.email;
const hashedPassword = bcrypt.hashSync(req.body.password, 10);
users[random].password = hashedPassword;
req.session.userID = users[random].id;
res.redirect("/urls/");
});
app.get("/urls/:shortURL", (req, res) => {
let filtered = getUrlsForUser(req.session.userID);
let filteredShorts = Object.keys(filtered);
if (!filteredShorts.includes(req.params.shortURL)) {
res.status(500);
res.send("This link does not belong to you or it does not exist.");
}
let templateVars = { shortURL: req.params.shortURL, longURL: urlDatabase[req.params.shortURL].longURL, user: users[req.session.userID], data: urlDatabase };
res.render("urls_show", templateVars);
});
app.get("/u/:shortURL", (req, res) => {
// const longURL = ...
let short = req.params.shortURL;
if (urlDatabase[short]) {
urlDatabase[short].count = urlDatabase[short].count + 1 || 1;
if(req.session.userID){
req.session.visitorId = req.session.userID;
} else if (!req.session.visitorId) {
const visitTime = Date.now();
req.session.visitorId = (bcrypt.hashSync(visitTime.toString(), 10));
}
if (urlDatabase[short].visitors){
(urlDatabase[short].visitors).add(req.session.visitorId);
} else {
urlDatabase[short].visitors = new Set();
(urlDatabase[short].visitors).add(req.session.visitorId);
}
if (urlDatabase[short].visitorLog){
urlDatabase[short].visitorLog.push({ id: req.session.visitorId, timestamp: new Date() });
} else {
urlDatabase[short].visitorLog = [];
urlDatabase[short].visitorLog.push({ id: req.session.visitorId, timestamp: new Date() });
}
console.log(urlDatabase);
res.redirect(urlDatabase[short].longURL);
} else {
res.send("No such shortlink is in our database!");
}
});
app.delete("/urls/:shortURL/", (req, res) => {
let filtered = getUrlsForUser(req.session.userID);
let filteredShorts = Object.keys(filtered);
if (!filteredShorts.includes(req.params.shortURL)) {
res.status(500);
return res.send("This link does not belong to you!");
}
delete urlDatabase[req.params.shortURL];
res.redirect("/urls");
});
app.patch("/urls/:shortURL/", (req, res) => {
let filtered = getUrlsForUser(req.session.userID);
let filteredShorts = Object.keys(filtered);
if (!filteredShorts.includes(req.params.shortURL)) {
res.status(500);
res.send("This link does not belong to you!");
}
urlDatabase[req.params.shortURL].longURL = req.body.longUrl;
res.redirect("/urls");
});
app.listen(PORT, () => {
console.log(`Example app listening on port ${PORT}!`);
});