148 lines
5.4 KiB
Python
148 lines
5.4 KiB
Python
# -*- encoding: utf-8 -*-
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# @author : vincent.benoit@benserv.fr
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# @brief : Datetime routes
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#########################################################
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# Importation de modules externes #
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import sys, re, os
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import logging as log
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from datetime import datetime, timezone
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import time
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from flask import Flask, Blueprint, request, abort, jsonify, current_app
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from flask_api import status
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from flask_jwt_extended import create_access_token
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from flask_jwt_extended import get_jwt
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from flask_jwt_extended import set_access_cookies
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from flask_jwt_extended import unset_jwt_cookies
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from flask_jwt_extended import get_jwt_identity
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from flask_jwt_extended import jwt_required
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import json
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import shutil
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import hashlib
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import subprocess
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from werkzeug.exceptions import HTTPException
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#########################################################
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# Class et Methods #
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dt = Blueprint('datetime', __name__, url_prefix='/api/configurateur')
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@dt.errorhandler(HTTPException)
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def handle_exception(e):
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''' return JSON instead of HTML for HTTP errors '''
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response = e.get_response()
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# replace the body with JSON
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response.data = json.dumps({
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'code': e.code,
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'name': e.name,
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'description': e.description,
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})
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response.content_type = "application/json"
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return response
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@dt.after_request
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def refresh_expiring_tokens(response):
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''' Using an 'after_request' callback, we refresh any token that is within
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30 minutes of expiring.'''
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try:
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exp_timestamp = get_jwt()['exp']
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now = datetime.now(timezone.utc)
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target_timestamp = datetime.timestamp(now + current_app.config['DELTA'])
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if target_timestamp > exp_timestamp:
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current_app.logger.warning("On doit recréer un token JWT ....")
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access_token = create_access_token(identity=get_jwt_identity())
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# refresh token in storage place
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if os.path.exists(os.path.join("/tmp", current_app.config['PROJECT'])):
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with open(os.path.join("/tmp", current_app.config['PROJECT'], get_jwt_identity()['id']), 'w') as f:
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f.write(access_token)
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# Modifiy a Flask Response to set a cookie containing the access JWT.
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set_access_cookies(response, access_token)
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return response
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except (RuntimeError, KeyError):
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return response
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def execute_cmd(args=""):
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''' Execute system command
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'''
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out = None
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err = None
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if len(args) == 0:
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current_app.logger.error("Paramètre d'entrée invalide")
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return False
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current_app.logger.debug("La commande système executée est : {}".format(args))
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try:
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cmd = subprocess.Popen(args,
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shell=False,
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stdout=subprocess.PIPE,
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stderr=subprocess.PIPE)
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(out, err) = cmd.communicate(timeout=10)
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except subprocess.CalledProcessError as e:
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current_app.logger.error("Error executing system command : {} - {}".format(e.output, e.returncode))
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return False
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except subprocess.TimeoutExpired:
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cmd.kill()
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current_app.logger.error("Timeout when executing system command")
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return False
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except FileNotFoundError:
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current_app.logger.error("System command not found")
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return False
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if cmd.returncode != 0:
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current_app.logger.error('Error executing system command ({})'.format(cmd.returncode))
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current_app.logger.error('{}'.format(err))
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return False
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return True
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@dt.route('/datetime', methods=['GET'])
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@jwt_required()
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def retreive_datetime():
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''' recuperation de la date et heure du système
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'''
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current_user = get_jwt_identity()
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today = datetime.now().strftime("%d/%m/%Y %H:%M")
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content = jsonify({'today':today})
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return content, status.HTTP_200_OK
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@dt.route('/update_datetime', methods=['POST'])
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@jwt_required()
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def update_datetime():
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''' Mise a jour de la date et heure du système
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'''
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current_app.logger.info("Mise a jour de la date et heure du système")
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current_user = get_jwt_identity()
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# recuperation des attributs JSON de la requete
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data_req = request.get_json()
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current_app.logger.debug("Nouvelle date et heure: {}".format(data_req['datetime']))
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setdate_cmd = ['sudo', '/bin/date', '-s', data_req['datetime']]
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if not execute_cmd(setdate_cmd):
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abort(status.HTTP_500_INTERNAL_SERVER_ERROR,
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description='Mise a l\'heure du système impossible')
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if os.path.exists("/dev/rtc0"):
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setdate_cmd = ['sudo', '/sbin/hwclock', '-w']
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if not execute_cmd(setdate_cmd):
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abort(status.HTTP_500_INTERNAL_SERVER_ERROR,
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description='Mise a l\'heure de l\horloge materielle impossible')
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else:
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current_app.logger.warning("horloge materielle non presente ...")
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current_app.logger.warning("On doit recréer un token JWT ....")
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access_token = create_access_token(identity=current_user)
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# refresh token in storage place
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if os.path.exists(os.path.join("/tmp", current_app.config['PROJECT'])):
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with open(os.path.join("/tmp", current_app.config['PROJECT'], get_jwt_identity()['id']), 'w') as f:
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f.write(access_token)
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# Modifiy a Flask Response to set a cookie containing the access JWT.
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content = jsonify({'message':'maj date and time successful!'})
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set_access_cookies(content, access_token)
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return content, status.HTTP_200_OK
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