Files
Kine-backend/ConfBack/infos/views.py

163 lines
6.3 KiB
Python

# -*- encoding: utf-8 -*-
# @author : vincent.benoit@benserv.fr
# @brief : info routes
#########################################################
# Importation de modules externes #
import sys, re, os
import logging as log
from datetime import datetime, timezone
from flask import Flask, Blueprint, request, abort, jsonify, current_app
from flask_api import status
from flask_jwt_extended import create_access_token
from flask_jwt_extended import get_jwt
from flask_jwt_extended import set_access_cookies
from flask_jwt_extended import get_jwt_identity
from flask_jwt_extended import jwt_required
import json
import platform
import psutil
from werkzeug.exceptions import HTTPException
from ConfBack.manager import Sock, TimeoutError
#########################################################
# Class et Methods #
info = Blueprint('info', __name__, url_prefix='/api/configurateur')
@info.errorhandler(HTTPException)
def handle_exception(e):
''' return JSON instead of HTML for HTTP errors '''
response = e.get_response()
# replace the body with JSON
response.data = json.dumps({
'code': e.code,
'name': e.name,
'description': e.description,
})
response.content_type = "application/json"
return response
@info.after_request
def refresh_expiring_tokens(response):
''' Using an 'after_request' callback, we refresh any token that is within
30 minutes of expiring.'''
try:
exp_timestamp = get_jwt()['exp']
now = datetime.now(timezone.utc)
target_timestamp = datetime.timestamp(now + current_app.config['DELTA'])
if target_timestamp > exp_timestamp:
current_app.logger.warning("On doit recréer un token ....")
access_token = create_access_token(identity=get_jwt_identity())
# refresh token in storage place
if os.path.exists(os.path.join("/tmp", current_app.config['PROJECT'])):
with open(os.path.join("/tmp", current_app.config['PROJECT'], get_jwt_identity()['id']), 'w') as f:
f.write(access_token)
# Modifiy a Flask Response to set a cookie containing the access JWT.
set_access_cookies(response, access_token)
return response
except (RuntimeError, KeyError):
return response
def find_procs_by_name(name):
''' Return a list of processes matching 'name'.
'''
ls = []
for p in psutil.process_iter(["name", "exe", "cmdline"]):
if name == p.info['name'] or \
p.info['exe'] and os.path.basename(p.info['exe']) == name or \
p.info['cmdline'] and p.info['cmdline'][0] == name:
ls.append(p)
return ls
@info.route('/infos', methods=['GET'])
@jwt_required()
def get_infos():
''' Retreive informations '''
# Access the identity of the current user with get_jwt_identity
current_user = get_jwt_identity()
content = {}
# load data from JSON database
with open(current_app.config['DB_PATH'], 'r') as f:
data = json.load(f)
mem = psutil.virtual_memory()
disk = psutil.disk_usage('/')
content['manufacturer'] = data['INFOS']['manufacturer']
content['operator'] = data['INFOS']['control']['operator']
content['provider'] = data['INFOS']['control']['service_provider']
content['signal_dbm'] = data['INFOS']['control']['signal_dbm']
content['signal_qos'] = data['INFOS']['control']['signal_qos']
content['sim_inserted'] = data['INFOS']['control']['sim_inserted']
content['call_ready'] = data['INFOS']['control']['call_ready']
content['system'] = {'arch':platform.architecture()[0],
'machine':platform.machine(),
'version':platform.release(),
'os':platform.system(),
'total_cpu':psutil.cpu_count(logical=True),
'cpu_usage':psutil.cpu_percent(),
'total_mem':str("{:.2f}".format(mem.total/(1024 * 1024))),
'avail_mem':str("{:.2f}".format(mem.available/(1024 * 1024))),
'used_mem':str("{:.2f}".format(mem.used/(1024 * 1024))),
'percent_used_mem':mem.percent,
'total_disk':str("{:.2f}".format(disk.total/(1024 * 1024))),
'free_disk':str("{:.2f}".format(disk.free/(1024 * 1024))),
'used_disk':str("{:.2f}".format(disk.used/(1024 * 1024))),
'percent_used_disk':disk.percent}
return jsonify(content), status.HTTP_200_OK
@info.route('/alive', methods=['GET'])
@jwt_required()
def is_alive():
''' Processus KineIntercom is alive ? '''
ret = True
conn = Sock(addr=current_app.config['UNIX_ADDR'], logger=current_app.logger)
if not conn.connect():
current_app.logger.error("impossible de se connecter au serveur IPC AF_UNIX")
ret = False
content = {'alive':ret}
return jsonify(content), status.HTTP_200_OK
current_app.logger.info("envoie de la demande de message de vie ...")
# send order to KineIntercom process
if not conn.send(b"ALIVE?\n"):
conn.disconnect()
current_app.logger.error("impossible de communiquer avec le serveur IPC AF_UNIX")
ret = False
content = {'alive':ret}
return jsonify(content), status.HTTP_200_OK
try:
datas = conn.recv_timeout(6, 10)
if not datas.decode('utf-8').startswith('ALIVE'):
current_app.logger.warning("message de vie non valide ...")
ret = False
else:
current_app.logger.info("message de vie valide ...")
except TimeoutError as e:
current_app.logger.warning("Pas de message de vie de la part du processus KineIntercom")
ret = False
conn.disconnect()
content = {'alive':ret}
return jsonify(content), status.HTTP_200_OK
@info.route('/rtc_alive', methods=['GET'])
@jwt_required()
def rtc_alive():
''' RTC is alive ? '''
ret = False
if os.path.exists("/dev/rtc0"):
current_app.logger.info("L'horloge matérielle est présente ...")
ret = True
else:
current_app.logger.warning("L'horloge matérielle n'est pas présente ...")
content = {'RTCalive':ret}
return jsonify(content), status.HTTP_200_OK