mp/Sean/server.js
2023-12-27 21:37:24 +08:00

645 lines
19 KiB
JavaScript

const express = require("express");
const session = require("express-session");
const mysql = require("mysql");
const bodyParser = require("body-parser");
const bcrypt = require("bcrypt");
const crypto = require("crypto");
const nodemailer = require("nodemailer");
const transporter = require("./modules/nodeMailer");
const { mysqlConfig , connection } = require("./modules/mysql");
const app = express();
app.use(bodyParser.urlencoded({ extended: true }));
app.use(bodyParser.json());
const PORT = process.env.PORT || 3000;
require("dotenv").config();
app.use(bodyParser.urlencoded({ extended: true }));
app.use(
session({
secret: "your_session_secret",
resave: false,
saveUninitialized: true,
})
);
app.set("view engine", "ejs");
function isAuthenticated(req, res, next) {
if (req.session && req.session.authenticated) {
return next();
} else {
res.redirect("/login");
}
}
app.get("/login", (req, res) => {
// Pass an initial value for the error variable
res.render("login", { error: null });
});
const logActivity = async (username, success) => {
try {
const activity = success
? "successful login"
: "unsuccessful login due to invalid password or username";
const logSql =
"INSERT INTO user_logs (username, activity, timestamp) VALUES (?, ?, CURRENT_TIMESTAMP)";
const logParams = [username, activity];
connection.query(logSql, logParams, (error, results) => {
if (error) {
console.error("Error logging activity:", error);
// Handle error (you may want to log it or take other appropriate actions)
} else {
console.log("Activity logged successfully");
}
});
} catch (error) {
console.error("Error in logActivity function:", error);
// Handle error (you may want to log it or take other appropriate actions)
}
};
app.post("/login", async (req, res) => {
try {
let { username, password } = req.body;
username = username.trim();
const loginSql = "SELECT * FROM users WHERE username = ?";
const updateLastLoginSql =
"UPDATE users SET lastLogin = CURRENT_TIMESTAMP WHERE username = ?";
console.log("Login Query:", loginSql);
console.log("Query Parameters:", [username]);
connection.query(loginSql, [username], async (error, results) => {
console.log("Login Results:", results);
if (error) {
console.error("Error executing login query:", error);
res.status(500).send("Internal Server Error");
return;
}
const isLoginSuccessful =
results.length > 0 &&
(await bcrypt.compare(password, results[0].password));
// Log login attempt
await logActivity(username, isLoginSuccessful);
if (isLoginSuccessful) {
const user = results[0];
// Update lastLogin field for the user
connection.query(
updateLastLoginSql,
[username],
(updateError, updateResults) => {
if (updateError) {
console.error("Error updating lastLogin:", updateError);
res.status(500).send("Internal Server Error");
return;
}
// Check if the update affected any rows
if (updateResults.affectedRows > 0) {
// Set session data for authentication
req.session.regenerate((err) => {
if (err) {
console.error("Error regenerating session:", err);
}
console.log("Session regenerated successfully");
req.session.authenticated = true;
req.session.username = username;
res.redirect("/home");
});
} else {
// Pass the error to the template
res.render("login", {
error: "Error updating lastLogin. No rows affected.",
});
}
}
);
} else {
// Pass the error to the template
res.render("login", { error: "Invalid username or password" });
}
});
} catch (error) {
console.error("Error in login route:", error);
res.status(500).send("Internal Server Error");
}
});
// Update your /home route to retrieve the overall last 10 logins for all users
app.get("/home", isAuthenticated, (req, res) => {
// Retrieve the overall last 10 logins for all users
const loginsQuery =
"SELECT username, lastLogin FROM users ORDER BY lastLogin DESC LIMIT 10";
connection.query(loginsQuery, (error, loginResults) => {
if (error) {
console.error("Error executing login logs query:", error);
res.status(500).send("Internal Server Error");
return;
}
// Log the results on the server side
console.log("Login Logs on Server:", loginResults);
// Render the home page with login logs data
res.render("home", {
username: req.session.username,
loginLogs: loginResults,
});
});
});
app.get("/inusers", isAuthenticated, (req, res) => {
// Fetch all user data from the database
const allUsersQuery = "SELECT * FROM users";
connection.query(allUsersQuery, (error, allUsers) => {
if (error) {
console.error("Error fetching all users:", error);
res.status(500).send("Internal Server Error");
return;
}
// Render the inusers page with JSON data
res.render("inusers", { allUsers });
});
});
function isStrongPassword(password) {
// Password must be at least 10 characters long
if (password.length < 10) {
return false;
}
// Password must contain at least one uppercase letter
if (!/[A-Z]/.test(password)) {
return false;
}
// Password must contain at least one lowercase letter
if (!/[a-z]/.test(password)) {
return false;
}
// Password must contain at least one digit
if (!/\d/.test(password)) {
return false;
}
// Password must contain at least one symbol
if (!/[!@#$%^&*(),.?":{}|<>]/.test(password)) {
return false;
}
return true;
}
const logUserCreationActivity = async (creatorUsername, success, message) => {
try {
const activity = success
? "successful user creation"
: `unsuccessful user creation: ${message}`;
const logSql =
"INSERT INTO user_logs (username, activity, timestamp) VALUES (?, ?, CURRENT_TIMESTAMP)";
const logParams = [creatorUsername, activity];
const connection = mysql.createConnection(mysqlConfig);
connection.connect();
connection.query(logSql, logParams, (error, results) => {
if (error) {
console.error("Error logging user creation activity:", error);
// Handle error (you may want to log it or take other appropriate actions)
} else {
console.log("User creation activity logged successfully");
}
connection.end(); // Close the connection after logging activity
});
} catch (error) {
console.error("Error in logUserCreationActivity function:", error);
// Handle error (you may want to log it or take other appropriate actions)
}
};
app.post("/createUser", async (req, res) => {
try {
const { name, username, email, password, jobTitle } = req.body;
// Extract the username of the user creating a new user
const creatorUsername = req.session.username; // Adjust this based on how you store the creator's username in your session
// Validate password complexity
if (!isStrongPassword(password)) {
return res
.status(400)
.json({ error: "Password does not meet complexity requirements" });
}
// Check if the username is already taken
const checkUsernameQuery = "SELECT * FROM users WHERE username = ?";
connection.query(
checkUsernameQuery,
[username],
(usernameQueryErr, usernameResults) => {
if (usernameQueryErr) {
console.error("Error checking username:", usernameQueryErr);
return res.status(500).json({ error: "Internal Server Error" });
}
if (usernameResults.length > 0) {
// Log unsuccessful user creation due to username taken
logUserCreationActivity(creatorUsername, false, "username taken");
return res
.status(400)
.json({
error: "Username is already taken",
message:
"Username is already taken. Please choose a different username.",
});
}
// Check if the email is already taken
const checkEmailQuery = "SELECT * FROM users WHERE email = ?";
connection.query(
checkEmailQuery,
[email],
(emailQueryErr, emailResults) => {
if (emailQueryErr) {
console.error("Error checking email:", emailQueryErr);
return res.status(500).json({ error: "Internal Server Error" });
}
if (emailResults.length > 0) {
// Log unsuccessful user creation due to email taken
logUserCreationActivity(creatorUsername, false, "email taken");
return res
.status(400)
.json({
error: "Email is already in use",
message:
"Email is already in use. Please choose another email.",
});
}
// Hash the password before storing it in the database
bcrypt.hash(password, 10, (hashError, hashedPassword) => {
if (hashError) {
console.error("Error hashing password:", hashError);
return res.status(500).json({ error: "Internal Server Error" });
}
// Start a transaction
connection.beginTransaction((transactionErr) => {
if (transactionErr) {
console.error("Error starting transaction:", transactionErr);
return res
.status(500)
.json({ error: "Internal Server Error" });
}
// Define the insert query
const insertUserQuery =
"INSERT INTO users (name, username, email, password, lastLogin, jobTitle) VALUES (?, ?, ?, ?, NULL, ?)";
// Log the query and its parameters
console.log("Insert Query:", insertUserQuery);
console.log("Query Parameters:", [
name,
username,
email,
hashedPassword,
jobTitle,
]);
// Execute the query with user data
connection.query(
insertUserQuery,
[name, username, email, hashedPassword, jobTitle],
(queryErr, results) => {
if (queryErr) {
console.error("Error executing query:", queryErr);
// Rollback the transaction in case of an error
connection.rollback((rollbackErr) => {
if (rollbackErr) {
console.error(
"Error rolling back transaction:",
rollbackErr
);
}
// Log unsuccessful user creation due to an error
logUserCreationActivity(
creatorUsername,
false,
"internal error"
);
return res
.status(500)
.json({ error: "Internal Server Error" });
});
return;
}
// Commit the transaction
connection.commit((commitErr) => {
if (commitErr) {
console.error(
"Error committing transaction:",
commitErr
);
// Log unsuccessful user creation due to an error
logUserCreationActivity(
creatorUsername,
false,
"internal error"
);
return res
.status(500)
.json({ error: "Internal Server Error" });
}
// Log successful user creation
logUserCreationActivity(
creatorUsername,
true,
"user created successfully"
);
// Log the results of the query
console.log("Query Results:", results);
// Respond with a success message
res
.status(201)
.json({ message: "User created successfully" });
});
}
);
});
});
}
);
}
);
} catch (error) {
console.error("Error creating user:", error);
// Log unsuccessful user creation due to an error
logUserCreationActivity(req.session.username, false, "internal error"); // Adjust this based on how you store the creator's username in your session
res.status(500).json({ error: "Internal Server Error" });
}
});
app.get("/forgot-password", (req, res) => {
res.render("forgot-password"); // Assuming you have an EJS template for this
});
app.get("/forgot-password", (req, res) => {
res.render("forgot-password", { error: null, success: null });
});
// Handle the submission of the forgot password form
app.post("/forgot-password", (req, res) => {
const { usernameOrEmail } = req.body;
// Perform the logic for sending the reset password email
// Check if the username or email exists in the database
const checkUserQuery = "SELECT * FROM users WHERE username = ? OR email = ?";
connection.query(
checkUserQuery,
[usernameOrEmail, usernameOrEmail],
(checkError, checkResults) => {
if (checkError) {
console.error("Error checking user:", checkError);
const error = "An error occurred during the password reset process.";
res.render("forgot-password", { error, success: null });
} else if (checkResults.length === 0) {
const error = "Username or email not found.";
res.render("forgot-password", { error, success: null });
} else {
// Assuming the user exists, generate a reset token and send an email
const user = checkResults[0];
const resetToken = crypto.randomBytes(20).toString("hex");
const resetTokenExpiry = new Date(Date.now() + 3600000); // Token expires in 1 hour
// Update user with reset token and expiry
const updateQuery =
"UPDATE users SET reset_token = ?, reset_token_expiry = ? WHERE id = ?";
connection.query(
updateQuery,
[resetToken, resetTokenExpiry, user.id],
(updateError) => {
if (updateError) {
console.error("Error updating reset token:", updateError);
const error =
"An error occurred during the password reset process.";
res.render("forgot-password", { error, success: null });
} else {
// Send email with reset link
const resetLink = `http://localhost:3000/reset-password/${resetToken}`;
const mailOptions = {
to: user.email,
subject: "Password Reset",
text: `Click on the following link to reset your password: ${resetLink}`,
};
transporter.sendMail(mailOptions, (emailError, info) => {
if (emailError) {
console.error("Error sending email:", emailError);
const error =
"An error occurred during the password reset process.";
res.render("forgot-password", { error, success: null });
} else {
console.log("Email sent: " + info.response);
const success =
"Password reset email sent successfully. Check your inbox.";
res.render("forgot-password", { error: null, success });
// Log the successful sending of the reset link in the database
logPasswordResetActivity(
user.username,
"link sent successfully"
);
}
});
}
}
);
}
}
);
});
// Function to log the password reset activity in the database
function logPasswordResetActivity(username, activity) {
const logSql =
"INSERT INTO user_logs (username, activity, timestamp) VALUES (?, ?, CURRENT_TIMESTAMP)";
mysqlConnection.query(logSql, [username, activity], (error) => {
if (error) {
console.error("Error logging password reset activity:", error);
} else {
console.log("Password reset activity logged successfully");
}
});
}
// Handle Reset Password request
app.post("/reset-password/:token", async (req, res) => {
const { token } = req.params;
const { password, confirmPassword } = req.body;
// Find user with matching reset token and not expired
const selectQuery =
"SELECT * FROM users WHERE reset_token = ? AND reset_token_expiry > NOW()";
connection.query(selectQuery, [token], async (selectErr, selectResults) => {
if (selectErr) {
console.error("Error querying reset token:", selectErr);
return res.status(500).json({ error: "Error querying reset token" });
}
if (selectResults.length === 0) {
// Pass the error to the template when rendering the reset-password page
return res.render("reset-password", {
token,
resetError: "Invalid or expired reset token",
});
}
// Check if passwords match
if (password !== confirmPassword) {
// Pass the error to the template when rendering the reset-password page
return res.render("reset-password", {
token,
resetError: "Passwords do not match",
});
}
// Check if the new password meets complexity requirements
if (!isStrongPassword(password)) {
// Pass the error to the template when rendering the reset-password page
return res.render("reset-password", {
token,
resetError:
"Password does not meet complexity requirements. It must be at least 10 characters long and include at least one uppercase letter, one lowercase letter, one digit, and one symbol.",
});
}
// Hash the new password
const hashedPassword = await bcrypt.hash(password, 10);
// Update user's password and clear reset token
const updateQuery =
"UPDATE users SET password = ?, reset_token = NULL, reset_token_expiry = NULL WHERE reset_token = ?";
connection.query(updateQuery, [hashedPassword, token], (updateErr) => {
if (updateErr) {
console.error("Error updating password:", updateErr);
// Pass the error to the template when rendering the reset-password page
res.render("reset-password", {
token,
resetError: "Error updating password",
});
} else {
// Redirect to the success page upon successful password reset
res.redirect("/success");
}
});
});
});
app.get("/success", (req, res) => {
res.render("success");
});
app.get("/reset-password/:token", (req, res) => {
const { token } = req.params;
const error = req.query.error || null; // Get error from query parameter
// Assuming you have this line in your server code where you render the reset-password view
res.render("reset-password", {
token,
passwordValidationError: null,
resetError: null,
success: null,
});
});
app.post("/reset-password", async (req, res) => {
const { username, password, confirmPassword } = req.body;
// Check if passwords match
if (password !== confirmPassword) {
return res.status(400).json({ error: "Passwords do not match" });
}
// Check if the new password meets complexity requirements
if (!isStrongPassword(password)) {
return res.status(400).json({
error:
"Password does not meet complexity requirements. It must be at least 10 characters long and include at least one uppercase letter, one lowercase letter, one digit, and one symbol.",
});
}
// Hash the new password
const hashedPassword = await bcrypt.hash(password, 10);
// Check if the user exists in the database before updating the password
const userExists = await checkIfUserExists(username);
if (!userExists) {
return res.status(404).json({ error: "User does not exist" });
}
// Update user's password based on the username
const updateQuery = "UPDATE users SET password = ? WHERE username = ?";
connection.query(
updateQuery,
[hashedPassword, username],
(updateErr, updateResults) => {
if (updateErr) {
console.error("Error updating password:", updateErr);
return res.status(500).json({ error: "Error updating password" });
}
// Check if the update affected any rows
if (updateResults.affectedRows > 0) {
// Password update successful
return res
.status(200)
.json({ success: "Password updated successfully" });
} else {
return res
.status(404)
.json({
error: "User not found or password not updated.",
});
}
}
);
});
async function checkIfUserExists(username) {
return new Promise((resolve, reject) => {
const query = "SELECT * FROM users WHERE username = ?";
connection.query(query, [username], (err, results) => {
if (err) {
reject(err);
} else {
resolve(results.length > 0);
}
});
});
}
app.use(express.static("views"));
app.listen(PORT, () => {
console.log(`Server is running on port ${PORT}`);
});