DocScoDoc/app/scodoc/sco_up_to_date.py

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# -*- mode: python -*-
# -*- coding: utf-8 -*-
##############################################################################
#
# Gestion scolarite IUT
#
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# Copyright (c) 1999 - 2022 Emmanuel Viennet. All rights reserved.
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#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#
# Emmanuel Viennet emmanuel.viennet@viennet.net
#
##############################################################################
""" Verification version logiciel vs version "stable" sur serveur
N'effectue pas la mise à jour automatiquement, mais permet un affichage d'avertissement.
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"""
import json
import requests
import time
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from flask import current_app
import app.scodoc.sco_utils as scu
from sco_version import SCOVERSION, SCONAME
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def is_up_to_date() -> str:
"""Check installed version vs last release.
Returns html message, empty of ok.
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"""
diag = ""
try:
response = requests.get(scu.SCO_UP2DATE)
except requests.exceptions.ConnectionError:
current_app.logger.debug("is_up_to_date: %s", diag)
return f"""<div>Attention: installation de {SCONAME} non fonctionnelle.</div>
<div>Détails: pas de connexion à {scu.SCO_WEBSITE}.
Vérifier paramètrages réseau,
<a href="https://scodoc.org/GuideInstallDebian11/#informations-sur-les-flux-reseau">voir la documentation</a>.
</div>
"""
except:
current_app.logger.debug("is_up_to_date: %s", diag)
return f"""<div>Attention: installation de {SCONAME} non fonctionnelle.</div>
<div>Détails: erreur inconnue lors de la connexion à {scu.SCO_WEBSITE}.
Vérifier paramètrages réseau,
<a href="https://scodoc.org/GuideInstallDebian11/#informations-sur-les-flux-reseau">voir la documentation</a>.
</div>
"""
if response.status_code != 200:
current_app.logger.debug(
f"is_up_to_date: invalid response code ({response.status_code})"
)
return f"""<div>Attention: réponse invalide de {scu.SCO_WEBSITE}</div>
<div>(erreur http {response.status_code}).</div>"""
try:
infos = json.loads(response.text)
except json.decoder.JSONDecodeError:
current_app.logger.debug(f"is_up_to_date: invalid response (json)")
return f"""<div>Attention: réponse invalide de {scu.SCO_WEBSITE}</div>
<div>(erreur json).</div>"""
# nb: si de nouveaux paquets sont publiés chaque jour, le décalage ne sera jamais signalé.
# mais en régime "normal", on aura une alerte après 24h sans mise à jour.
days_since_last_package = (time.time() - infos["publication_time"]) / (24 * 60 * 60)
if (infos["version"] != SCOVERSION) and (days_since_last_package > 1.0):
return f"""<div>Attention: {SCONAME} version ({SCOVERSION}) non à jour
({infos["version"]} disponible).</div>
<div>Contacter votre administrateur système
(<a href="https://scodoc.org/MisesAJour/">documentation</a>).
</div>
"""
return "" # ok