Quick & Dirty Ping Monitor + Email Report

ping_monitor.py

# Quick & Dirty Ping Monitor + Email Report
# -----------------------------------------
# Code Credits:
# - Ping Server In Python: https://stackoverflow.com/questions/2953462/pinging-servers-in-python
# - Simple Python Server Monitor: https://github.com/brendancarlson/Simple-Python-Server-Monitor/blob/master/monitor.py
# -----------------------------------------
# Basic Usage: python3 ping_monitor.py
# Cron Usage:
#  - Set for every hour to avoid overwhelming SMTP server thresholds
#  - crontab -i
#  - Command: i
#  - Insert text: 0 * * * * /path/to/python3 /path/to/ping_monitor.py
#  - Command: Shift-ZZ
#  - contrab -l

import platform
import subprocess
import smtplib

# Main settings

MONITORED_HOSTS = ['10.10.10.2' , '10.10.10.3'] #Add hosts to monitor in this list

SENDER = 'sender@email.something'
RECIPIENT = 'recipient@email.something'
SMTP_SERVER = 'smtp.gmail.com'
SMTP_PORT = 587
SUBJECT = 'Host(s) Offline Report'
SMTP_USER = 'sender@gmail.com'
SMTP_PASS = 'P@ssw0rd'

# Source: https://stackoverflow.com/questions/2953462/pinging-servers-in-python
def DoPing(host):
    param = '-n' if platform.system().lower()=='windows' else '-c'
    command = ['ping', param, '1', host]
    return subprocess.call(command) == 0

# Source: https://github.com/brendancarlson/Simple-Python-Server-Monitor/blob/master/monitor.py
# License:
#The MIT License (MIT)
#
#Copyright (c) 2013 Brendan Carlson (https://github.com/brendancarlson) & Darayus (https://github.com/Darayus)
#
#Permission is hereby granted, free of charge, to any person obtaining a copy
#of this software and associated documentation files (the "Software"), to deal
#in the Software without restriction, including without limitation the rights
#to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
#copies of the Software, and to permit persons to whom the Software is
#furnished to do so, subject to the following conditions:
#
#The above copyright notice and this permission notice shall be included in
#all copies or substantial portions of the Software.
#
#THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
#IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
#FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
#AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
#LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
#OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
#THE SOFTWARE.
def SendEmail(body):
    sender = SENDER
    recipient = RECIPIENT
    subject = SUBJECT
    headers = ["From: " + sender,
               "Subject: " + subject,
               "To: " + recipient,
               "MIME-Version: 1.0",
               "Content-Type: text/html"]
    headers = "\r\n".join(headers)
    session = smtplib.SMTP(SMTP_SERVER, SMTP_PORT)
    session.ehlo()
    session.starttls()
    session.ehlo()
    session.login(SMTP_USER, SMTP_PASS)
    session.sendmail(sender, recipient, headers + "\r\n\r\n" + body)
    session.quit()

# Main
def main():
    send_flag = False
    results = ""
    for host in MONITORED_HOSTS:
        status = DoPing(host)
        if (status is False):
            send_flag = True
            results += "<br>[-] Host Down: " + host + "</br>"
        else:
            results += "<br>[+] Host Up: " + host + "</br>"

    if (send_flag):
        SendEmail(results)

if __name__ == "__main__":
    main()