tkd_neu/server/controllers/userController.js

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const bcrypt = require("bcryptjs");
const jwt = require("jsonwebtoken");
const { Pool } = require("pg");
// Datenbankverbindung
const pool = new Pool({
user: process.env.DB_USER,
host: process.env.DB_HOST,
database: process.env.DB_NAME,
password: process.env.DB_PASSWORD,
port: 5432,
});
// Registrierungsfunktion
const registerUser = async (req, res) => {
const { username, password, email, role } = req.body;
try {
// Überprüfen, ob der Benutzer bereits existiert
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const userExists = await pool.query(
"SELECT * FROM Users WHERE email = $1",
[email]
);
if (userExists.rows.length > 0) {
return res.status(400).json({ message: "Benutzer existiert bereits" });
}
// Passwort hashen
const hashedPassword = await bcrypt.hash(password, 10);
// Neuen Benutzer einfügen
const newUser = await pool.query(
"INSERT INTO Users (username, password, email, role, is_active) VALUES ($1, $2, $3, $4, $5) RETURNING *",
[username, hashedPassword, email, role, true]
);
res
.status(201)
.json({ message: "Benutzer registriert", user: newUser.rows[0] });
} catch (err) {
res
.status(500)
.json({ message: "Fehler beim Registrieren", error: err.message });
}
};
// Loginfunktion
const loginUser = async (req, res) => {
const { email, password } = req.body;
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console.log(email, password);
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try {
// Überprüfen, ob der Benutzer existiert
const user = await pool.query("SELECT * FROM Users WHERE email = $1", [
email,
]);
if (user.rows.length === 0) {
return res.status(400).json({ message: "Benutzer nicht gefunden" });
}
// Passwort vergleichen
const validPassword = await bcrypt.compare(password, user.rows[0].password);
if (!validPassword) {
return res.status(400).json({ message: "Ungültiges Passwort" });
}
// JWT Token erstellen
const token = jwt.sign(
{ id: user.rows[0].id, role: user.rows[0].role },
process.env.JWT_SECRET,
{
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expiresIn: "3h",
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}
);
res.status(200).json({ message: "Login erfolgreich", token });
} catch (err) {
res.status(500).json({ message: "Fehler beim Login", error: err.message });
}
};
const updateUser = async (req, res) => {
const { id, username, password, email, role } = req.body;
try {
const updateUser = await pool.query(
"UPDATE users SET username = $1, password = $2, email = $3, role = $4 WHERE id = $5 RETURNING *",
[username, password, email, role, id]
);
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res.status(200).json({
message: "Benutzerdaten aktualisiert",
user: updateUser.rows[0],
});
} catch (err) {
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res.status(500).json({
message: "Fehler beim Aktualisieren der Benutzerdaten",
error: err.message,
});
}
};
module.exports = { registerUser, loginUser, updateUser };