155 lines
6.2 KiB
Python
155 lines
6.2 KiB
Python
# Surveillance continue avec envoi d'alertes par email + rappels + log CSV
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import mysql.connector
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from datetime import datetime, timedelta
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import time
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import smtplib
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from email.mime.text import MIMEText
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import pandas as pd
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from dotenv import load_dotenv
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import os
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load_dotenv()
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# --- Config MySQL ---
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config = {
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"host": os.getenv("DB_HOST"),
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"user": os.getenv("DB_USER"),
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"password": os.getenv("DB_PASSWORD"),
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"database": os.getenv("DB_NAME")
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}
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# Charger les destinataires depuis .env
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destinataires = os.getenv("DESTINATAIRES_MAIL", "").split(',')
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# --- Suivi des alertes actives pour rappels ---
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alertes_actives = {}
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# --- Fonction d'envoi de mail ---
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def envoyer_mail(sujet, message, destinataires_list):
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msg = MIMEText(message)
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msg['Subject'] = sujet
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msg['From'] = 'alertes_saclay@domo91.fr'
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msg['To'] = ', '.join(destinataires_list)
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try:
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with smtplib.SMTP_SSL('smtp.mail.ovh.net', 465) as server:
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server.login('alertes_saclay@domo91.fr', 'Kdpke674y23Feq^H')
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server.sendmail(msg['From'], destinataires_list, msg.as_string())
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print(f"📧 Mail envoyé à {destinataires_list}", flush=True)
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except Exception as e:
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print(f"Erreur envoi mail : {e}", flush=True)
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# --- Fonction de surveillance ---
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def surveiller():
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global alertes_actives
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log_entries = []
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try:
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conn = mysql.connector.connect(**config)
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cursor = conn.cursor(dictionary=True)
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cursor.execute("SELECT DISTINCT Lieu FROM Chambres_froides")
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lieux = [row['Lieu'] for row in cursor.fetchall()]
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for lieu in lieux:
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table_temp = lieu
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table_alertes = f"Alertes_{lieu}"
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cursor.execute("SELECT Sonde, Temp_Max FROM Chambres_froides WHERE Lieu=%s AND Etat='ON'", (lieu,))
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sondes = cursor.fetchall()
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for sonde in sondes:
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nom_sonde = sonde['Sonde']
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seuil = sonde['Temp_Max']
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cursor.execute(f"""
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SELECT Date, Temperature FROM {table_temp}
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WHERE Sonde = %s
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ORDER BY Date DESC LIMIT 6
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""", (nom_sonde,))
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releves = cursor.fetchall()
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for r in releves:
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log_entries.append({
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"Date": r['Date'],
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"Lieu": lieu,
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"Sonde": nom_sonde,
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"Température": r['Temperature'],
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"Seuil": seuil,
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"État": "Dépassement" if r['Temperature'] > seuil else "Normal"
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})
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if len(releves) == 6:
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toutes_hors_seuil = all(r['Temperature'] > seuil for r in releves)
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plus_ancien = releves[-1]['Date']
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maintenant = datetime.now()
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if toutes_hors_seuil and (maintenant - plus_ancien >= timedelta(minutes=30)):
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cursor.execute(f"""
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SELECT COUNT(*) as total FROM {table_alertes}
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WHERE Sonde=%s AND Status='En cours'
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""", (nom_sonde,))
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en_cours = cursor.fetchone()
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if en_cours['total'] == 0:
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cursor.execute(
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f"INSERT INTO {table_alertes} (Sonde, Debut_defaut, Status) VALUES (%s, NOW(), 'En cours')",
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(nom_sonde,)
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)
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print(f"🚨 Alerte déclenchée pour {nom_sonde} ({lieu})", flush=True)
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sujet = f"🚨 ALERTE TEMPÉRATURE - {nom_sonde} ({lieu})"
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message = (
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f"La sonde '{nom_sonde}' du site '{lieu}' a dépassé le seuil de {seuil}°C "
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f"depuis plus de 30 minutes.\nHeure : {maintenant.strftime('%Y-%m-%d %H:%M:%S')}"
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)
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envoyer_mail(sujet, message, destinataires)
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# Suivi pour rappels
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alertes_actives[nom_sonde] = maintenant
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else:
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# Alerte déjà en cours : vérifier s'il faut faire un rappel
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dernier_envoi = alertes_actives.get(nom_sonde)
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if dernier_envoi and (maintenant - dernier_envoi >= timedelta(hours=1)):
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sujet = f"🔔 RAPPEL ALERTE TEMPÉRATURE - {nom_sonde} ({lieu})"
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message = (
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f"La sonde '{nom_sonde}' du site '{lieu}' est TOUJOURS en dépassement de seuil (>{seuil}°C).\n"
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f"Heure : {maintenant.strftime('%Y-%m-%d %H:%M:%S')}"
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)
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envoyer_mail(sujet, message, destinataires)
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alertes_actives[nom_sonde] = maintenant
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# Vérifier retour à la normale (Acquittement)
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cursor.execute(f"""
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SELECT Temperature FROM {table_temp}
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WHERE Sonde = %s
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ORDER BY Date DESC LIMIT 1
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""", (nom_sonde,))
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derniere = cursor.fetchone()
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if derniere and derniere['Temperature'] <= seuil:
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cursor.execute(f"""
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UPDATE {table_alertes}
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SET Status = 'Acquitté'
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WHERE Sonde = %s AND Status IN ('En cours', 'Test')
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""", (nom_sonde,))
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# Nettoyage du suivi si normalisé
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if nom_sonde in alertes_actives:
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del alertes_actives[nom_sonde]
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conn.commit()
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cursor.close()
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conn.close()
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if log_entries:
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df_logs = pd.DataFrame(log_entries)
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df_logs.to_csv("/var/log/monitor.csv", sep=";", index=False)
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except Exception as e:
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print(f"Erreur : {e}", flush=True)
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# --- Boucle principale ---
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while True:
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print(f"📡 Vérification à {datetime.now()}", flush=True)
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surveiller()
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time.sleep(300) # 5 minutes
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