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server.js
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server.js
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require("dotenv").config();
const express = require("express");
const { Client } = require("pg");
const session = require("express-session");
const bcrypt = require("bcrypt");
const axios = require("axios");
const { exec } = require("child_process");
const app = express();
const pgConfig = {
user: process.env.PG_USER,
host: process.env.PG_HOST,
database: process.env.PG_DATABASE,
password: process.env.PG_PASSWORD,
port: process.env.PG_PORT,
};
app.use(
express.static("public", {
setHeaders: function (res, path, stat) {
if (path.endsWith(".js")) {
res.set("Content-Type", "text/javascript");
}
},
})
);
app.use(
session({
secret: "suskeysus420",
resave: false,
saveUninitialized: false,
})
);
app.use(express.json());
let latestNews = [];
let allNews;
// SECTION: Fuctions
let weatherData = "";
async function fetchAllNews() {
allNews = [];
const client = new Client(pgConfig);
try {
console.log("\n[fetchAllNews] Connecting to the database...");
await client.connect();
const query = "SELECT * FROM news ORDER BY unique_id DESC";
console.log("[fetchAllNews] Querying the database...");
const result = await client.query(query);
allNews = result.rows;
latestNews = allNews.slice(0, 4).reverse();
} catch (error) {
console.error("[fetchAllNews] Error during retrieval from DB:", error);
} finally {
console.log("[fetchAllNews] Closing database connection...");
await client.end();
}
}
async function saveUserToDB(email, firstName, lastName, hashedPassword, newsletter) {
const client = new Client(pgConfig);
try {
console.log("\n[saveUserToDB] Connecting to the database...");
await client.connect();
const query = "INSERT INTO users (email, first_name, last_name, password, newsletter) VALUES ($1, $2, $3, $4, $5)";
console.log("[saveUserToDB] Executing query on the database...");
await client.query(query, [email, firstName, lastName, hashedPassword, newsletter]);
console.log("\n[saveUserToDB] User inserted!");
} catch (error) {
console.error("[saveUserToDB] Error during database insertion:", error);
throw new Error("Internal server error");
} finally {
console.log("[saveUserToDB] Closing database connection...");
await client.end();
}
}
async function isUserInDB(email) {
const client = new Client(pgConfig);
try {
console.log("\n[isUserInDB] Connecting...");
await client.connect();
const query = "SELECT email FROM users";
console.log("[isUserInDB] Querying the database...");
const result = await client.query(query);
console.log(result.rows);
return result.rows.some((row) => {
console.log(row.email + " == " + email);
return row.email == email;
});
} catch (error) {
console.error("[isUserInDB] Error during retrieval from DB:", error);
throw new Error("Internal server error");
} finally {
console.log("[isUserInDB] Disconnecting...");
await client.end();
}
}
async function getWeather(lat, lon) {
const apiKey = "1c1c8bb4564fa4482b830ffbe7daed37";
const url = `https://api.openweathermap.org/data/2.5/weather`;
const params = {
lat: lat,
lon: lon,
appid: apiKey,
units: "metric",
};
console.log(params);
console.log("[getWeather] Getting weather for " + lat + ", " + lon + " ...");
try {
const response = await axios.get(url, { params });
const data = response.data;
weatherData += data.name + ", " + data.weather[0].description + " " + data.main.temp + "°C";
console.log("Weather Data: " + weatherData);
} catch (error) {
console.error("Error getting weather data:", error);
}
}
fetchAllNews();
// SECTION: Routes
// Serve JavaScript file
app.get("/newsApp.js", (req, res) => {
res.type("application/javascript").sendFile(__dirname + "/newsApp.js");
});
app.get("/weather.js", (req, res) => {
res.type("application/javascript").sendFile(__dirname + "/weather.js");
});
app.get("/client-archive.js", (req, res) => {
res.type("application/javascript").sendFile(__dirname + "/client-archive.js");
});
app.get("/client-index.js", (req, res) => {
res.type("application/javascript").sendFile(__dirname + "/client-index.js");
});
app.get("/client-subscribe.js", (req, res) => {
res.type("application/javascript").sendFile(__dirname + "/client-subscribe.js");
});
app.get("/client-topNews.js", (req, res) => {
res.type("application/javascript").sendFile(__dirname + "/client-topNews.js");
});
app.get("/dateTime.js", (req, res) => {
res.type("application/javascript").sendFile(__dirname + "/dateTime.js");
});
app.get("/client-admin.js", (req, res) => {
res.type("application/javascript").sendFile(__dirname + "/client-admin.js");
});
app.get("/newsGenerator.js", (req, res) => {
res.type("application/javascript").sendFile(__dirname + "/newsGenerator.js");
});
// Endpoints
app.post("/unsubscribe", async (req, res) => {
const { email } = req.body;
const client = new Client(pgConfig);
try {
await client.connect();
const query = "DELETE FROM users WHERE email = $1";
await client.query(query, [email]);
res.json({ success: true });
} catch (error) {
console.error("Error unsubscribing user:", error);
res.status(500).json({ error: "Internal server error" });
} finally {
await client.end();
}
});
app.post("/newsGenerator", (req, res) => {
const apiKey = req.body.apiKey;
console.log("\n[/newsGenerator] Received API key:", apiKey);
const childProcess = exec(`node newsGenerator.js ${apiKey}`, (error, stdout, stderr) => {
if (error) {
console.error(`[/newsGenerator] Error executing newsGenerator.js: ${error.message}`);
res.status(500).send("[/newsGenerator] Error executing newsGenerator.js");
} else {
fetchAllNews();
console.log("[/newsGenerator] newsGenerator.js executed!");
}
});
childProcess.stdout.on("data", (data) => {
console.log(data);
res.write(data);
});
childProcess.stderr.on("data", (data) => {
console.log("[/newsGenerator] Error during execution:");
console.error(data);
res.write(data);
});
childProcess.on("close", () => {
exec("php newsletter.php", (error, stdout, stderr) => {
if (error) {
console.log(`error: ${error.message}`);
return;
}
if (stderr) {
console.log(`stderr: ${stderr}`);
return;
}
console.log(`stdout: ${stdout}`);
});
res.end();
});
});
app.get("/index", (req, res) => {
const response = {
loggedIn: req.session.loggedIn,
latestNews: latestNews,
};
res.json(response);
});
app.get("/archive", (req, res) => {
res.json(allNews);
});
app.get("/topnews", (req, res) => {
res.json(latestNews);
});
app.post("/subscribe", async (req, res) => {
const { email, firstName, lastName, password, newsletter } = req.body;
try {
if (await isUserInDB(email)) {
return res.status(409).send("Email already used");
}
bcrypt.hash(password, 10, async (err, hashedPassword) => {
if (err) {
console.error("Error during password hashing:", err);
return res.sendStatus(500);
}
await saveUserToDB(email, firstName, lastName, hashedPassword, newsletter);
req.session.loggedIn = true;
req.session.email = email;
res.json({ success: true });
});
} catch (error) {
console.error("Error during user registration:", error);
res.status(500).json({ error: "Internal server error" });
}
});
app.post("/login", async (req, res) => {
const { email, password } = req.body;
const client = new Client(pgConfig);
console.log("\n[/login] Connecting...");
await client.connect();
const query = "SELECT * FROM users WHERE email = ($1)";
console.log("[/login] Querying the database...");
const result = await client.query(query, [email]);
console.log(result.rows[0]);
try {
if (result.rows[0]) {
const storedPassword = result.rows[0].password;
bcrypt.compare(password, storedPassword, (err, resultCompare) => {
if (err) {
console.error("Error in password verification:", err);
return res.sendStatus(500);
}
console.log("\n", result.rows);
if (resultCompare) {
console.log("\nRES:true");
req.session.loggedIn = true;
req.session.userId = result.rows[0].email;
const { email, first_name, last_name } = result.rows[0];
res.json({ loggedIn: true, email, firstName: first_name, lastName: last_name });
} else {
console.log("\nRES:false");
res.json({ loggedIn: false });
}
});
} else {
console.log("Not registered!");
res.json({ loggedIn: false });
}
} catch (error) {
console.error("Error during user login:", error);
res.status(500).json({ error: "Internal server error" });
} finally {
console.log("[/login] Disconnecting...");
await client.end();
}
});
app.post("/checkvote", async (req, res) => {
const { email } = req.body;
console.log("\n[/checkvote] email:", email);
const query = `SELECT has_voted_today FROM users WHERE email = $1`;
const client = new Client(pgConfig);
try {
console.log("\n[/checkvote] Connecting...");
await client.connect();
console.log("[/checkvote] Querying the database...");
const result = await client.query(query, [email]);
if (result.rows.length > 0) {
const hasVotedToday = result.rows[0].has_voted_today;
res.json({ hasVotedToday });
} else {
res.status(404).json({ error: "User not found" });
}
} catch (error) {
console.error("Error checking vote:", error);
res.status(500).json({ error: "Internal server error" });
} finally {
console.log("[/checkvote] Disconnecting...");
await client.end();
}
});
app.post("/submitvotes", async (req, res) => {
const votes = req.body;
const queryUpdateNews = `UPDATE news SET score = score + $1 WHERE unique_id = $2`;
const queryUpdateUser = `UPDATE users SET has_voted_today = true WHERE email = $1`;
const client = new Client(pgConfig);
try {
console.log("\n[/submitvotes] Connecting...");
await client.connect();
const promises = votes.map(async (vote) => {
const { email, newsId, score } = vote;
const valuesUpdateNews = [score, newsId];
const valuesUpdateUser = [email];
console.log("\n[/submitvotes] News " + newsId + " Adding " + score);
await client.query(queryUpdateNews, valuesUpdateNews);
await client.query(queryUpdateUser, valuesUpdateUser);
});
await Promise.all(promises);
await fetchAllNews();
res.json({ message: "Votes submitted successfully" });
} catch (error) {
console.error("Error submitting votes:", error);
res.status(500).json({ error: "Error submitting votes. Please try again later." });
} finally {
console.log("[/submitvotes] Disconnecting...");
await client.end();
}
});
app.get("/resetVote", async (req, res) => {
const query = `UPDATE users SET has_voted_today = false`;
const client = new Client(pgConfig);
try {
console.log("\n[/resetVote] Connecting...");
await client.connect();
console.log("[/resetVote] Querying the database...");
await client.query(query);
console.log("[/resetVote] Vote reset successful");
res.sendStatus(200);
} catch (error) {
console.error("[/resetVote] Error resetting vote:", error);
res.status(500).json({ error: "Internal server error" });
} finally {
console.log("[/resetVote] Disconnecting...");
await client.end();
}
});
app.get("/", (req, res) => {
res.sendFile("index.html");
});
app.get("/gettopnews", (req, res) => {
const sortedNews = allNews.sort((a, b) => b.score - a.score);
const topNews = sortedNews.slice(0, 5);
res.json(topNews);
});
app.post("/newsletter", (req, res) => {
const email = req.body.email;
console.log("newletter:", email);
const client = new Client(pgConfig);
client
.connect()
.then(() => {
const query = "INSERT INTO newsletter (email) VALUES ($1)";
console.log("query");
return client.query(query, [email]);
})
.then(() => {
res.json({ success: true });
})
.catch((error) => {
console.error("Error inserting email:", error);
res.status(500).json({ error: "Internal server error" });
})
.finally(() => {
// Chiudi la connessione al database
client.end();
});
});
app.post("/weather", async (req, res) => {
const { lat, lon } = req.body;
if (weatherData == "") {
await getWeather(lat, lon);
}
res.send(weatherData);
});
// SECTION: Start Listening
const PORT = 51555;
app.listen(PORT, () => {
console.log(`Server listening on port ${PORT}`);
});