#!/usr/bin/env python3 """Email alert sender per VPS Hetzner - Mavis 21/07 2026.""" import os import sys import smtplib import logging from email.mime.text import MIMEText from email.mime.multipart import MIMEMultipart from pathlib import Path sys.path.insert(0, '/opt/charter-live') ENV_FILE = Path('/opt/charter-live/.env.alerts') LOG_FILE = '/opt/charter-live/logs/alert.log' logging.basicConfig( filename=LOG_FILE, level=logging.INFO, format='%(asctime)s [%(levelname)s] %(message)s' ) log = logging.getLogger() def load_config(): cfg = {} if not ENV_FILE.exists(): log.error(f'Env file mancante: {ENV_FILE}') return None with open(ENV_FILE) as f: for line in f: line = line.strip() if not line or line.startswith('#') or '=' not in line: continue k, v = line.split('=', 1) cfg[k.strip()] = v.strip() required = ['SMTP_HOST', 'SMTP_PORT', 'SMTP_USER', 'SMTP_PASS', 'ALERT_EMAIL_TO'] for k in required: if k not in cfg or not cfg[k] or cfg[k].startswith('your-'): log.warning(f'Config mancante: {k}') return None return cfg def send_alert(subject, body, level='INFO'): cfg = load_config() if not cfg: return False try: msg = MIMEMultipart() msg['From'] = cfg['SMTP_USER'] msg['To'] = cfg['ALERT_EMAIL_TO'] msg['Subject'] = f'[Charter VPS] [{level}] {subject}' msg.attach(MIMEText(body, 'plain')) with smtplib.SMTP(cfg['SMTP_HOST'], int(cfg['SMTP_PORT'])) as server: server.starttls() server.login(cfg['SMTP_USER'], cfg['SMTP_PASS']) server.send_message(msg) log.info(f'Alert inviato: {subject}') return True except Exception as e: log.error(f'Errore invio alert: {e}') return False if __name__ == '__main__': if len(sys.argv) < 3: print('Usage: alert.py [level]') sys.exit(1) subject = sys.argv[1] body = sys.argv[2] level = sys.argv[3] if len(sys.argv) > 3 else 'INFO' if send_alert(subject, body, level): print('OK') else: print('FAIL') sys.exit(1)