uptime-notifier.py

import os
import requests
import psutil
import time
import json

# Here you can find basic configuration settings set through variables
IP_TO_PING = '192.168.1.1' # IP of your computer on the network for ping
API_ENDPOINT = 'https://www.yoururl.com/' # API endpoint which needs to be notified if everything goes as planned
DATA_FILE = 'data.json' # Since we use the file for saving the counter, here is the name of the file where it will be saved

# This is how the functions are written in Python, they start with def block
# Be sure to give attention to indentation. More info: http://www.peachpit.com/articles/article.aspx?p=1312792&seqNum=3
def call_the_api():
    print('[INFO] Notifying the API: ' + API_ENDPOINT)

    # Here we use library for making HTTP request over the network
    # By using method `get` we make a GET HTTP method to given link
    #requests.get('API_ENDPOINT') # Uncomment this when you enter API_ENDPOINT for notification

# Uses os package to use system module which can pass command through terminal
def ping():
    response = os.system("ping -c 1 " + IP_TO_PING)

    # Since in UNIX operating system, the sign of running without problems is 0
    # We test if the response of the system to this command was positive
    if response == 0:
        print('[INFO] Successfull ping: ' + IP_TO_PING)
        return True
    else:
        return False

# Psutil library have been used to get boot time
# Time module for getting current time
# Next step is just formatting the given data to minutes 
def uptime_minutes():
    # The whole method could be written as commented line below
    # return (time.time() - psutil.boot_time()) / 60 / 60
    current_time = time.time() - psutil.boot_time()
    seconds = current_time / 60 
    minutes = seconds / seconds
    print('[INFO] Machine has been active for ' + str(int(minutes)) + ' minutes')
    return int(minutes)

# Persisting the counter to file in current folder by name of DATA_FILE variable
def save_counter(counter_value):
    data_file = open(DATA_FILE, 'w') # Opening the file in write mode
    data_json = {} # Initializing the json/dict
    data_json['counter'] = counter_value # Saving the counter value
    data_file.write(json.dumps(data_json)) # Writing 'dumped' json to file
    data_file.close() # Closing the file


def load_counter():
    if os.path.exists(DATA_FILE): # Checking if file exists if it does not this function will return 0
        data_file = open(DATA_FILE, 'r') # Open file in read mode
        json_data = json.load(data_file) # Load json from the file
        data_file.close() # Since we have loaded json file into the variable we can close the file
        return json_data['counter'] # return counter data from the file
    else:
        return 0


def main():

    counter = load_counter()
    
    if uptime_minutes() > 60:
        if ping() == True:
            if counter == 5:
                call_the_api()
                counter = 0
            else:
                counter += 1
        else:
            counter = 0  
    else:
        counter = 0
    save_counter(counter) # Persisting the counter


main()