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getToken.js
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getToken.js
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const readlineSync = require('readline-sync');
const sqlite3 = require('sqlite3').verbose();
const jwt = require('jsonwebtoken');
const bcrypt = require('bcrypt');
const clc = require('cli-color');
require('dotenv').config();
const { JWT_TOKEN } = process.env;
const DATABASE_FILE = './db/datenbank.sqlite';
if (process.env.ALLOW_METRICS === 'true') {
const Sentry = require("@sentry/node");
const { CaptureConsole } = require('@sentry/integrations');
Sentry.init({
dsn: "https://e7956175a50159561a2fcb0999ac56ce@o937824.ingest.sentry.io/4505795835658240",
tracesSampleRate: 0.4,
integrations: [
new CaptureConsole({
levels: ['error']
})
],
});
}
const getTokenByUsername = (enteredUsername, enteredPassword, callback) => {
const db = new sqlite3.Database(DATABASE_FILE);
const query = 'SELECT * FROM users WHERE username = ?';
const values = [enteredUsername];
db.get(query, values, async (error, user) => {
if (error) {
console.error(clc.red('\n[ERROR] | » Fehler beim Überprüfen des Benutzernamens:', error.message));
callback(null);
return;
}
if (user) {
const passwordMatch = await bcrypt.compare(enteredPassword, user.password);
if (passwordMatch) {
const { id, username, role, token } = user;
const decodedToken = jwt.verify(token, JWT_TOKEN);
if (decodedToken.username === enteredUsername) {
callback(token);
} else {
console.error(clc.red('\nUngültiger Token für den angegebenen Benutzer!'));
callback(null);
}
} else {
console.error(clc.red('\nFalsches Passwort!'));
callback(null);
}
} else {
console.error(clc.red('\nBenutzer nicht gefunden!'));
callback(null);
}
db.close();
});
};
async function login() {
try {
const enteredUsername = readlineSync.question('\nBenutzername: ');
const enteredPassword = readlineSync.question('Passwort: ', { hideEchoBack: true });
getTokenByUsername(enteredUsername, enteredPassword, (token) => {
if (token) {
console.log(clc.whiteBright(`\nAuthentifizierung erfolgreich!\nDein Token lautet: ${token}\n`));
} else {
console.error(clc.red('Fehler bei der Authentifizierung!\n'));
}
});
} catch (error) {
console.error(clc.red('\nEin Fehler ist aufgetreten!'));
}
}
login();