Website monitoring script to alert you when your site is down

website-monitoring.py

# pip install requests
# run it on a cron, the more clients you are looking, the longer the script takes
# currently it delays for 15 seconds between successful pings

import time
import pprint

## list of sites to track along with email address to send the alert
clients = [
    "http://www.website1.com", 
    "http://www.website2.com", #etc
]

down = []
up = []

def send_email(sites_down):
    ''' function to monitor up time '''
    import smtplib

    gmail_user = 'username@gmail.com'
    gmail_pwd = 'password'
    FROM = gmail_user
    TO = 'send-alert-to@gmail.com' if type('send-alert-to@gmail.com') is list else ['send-alert-to@gmail.com']
    SUBJECT = '[WEBSITES DOWN]'
    TEXT = {
        "Sites Down": sites_down
    }

    # Prepare actual message
    message = """\From: %s\nTo: %s\nSubject: %s\n\n%s
    """ % (FROM, ", ".join(TO), SUBJECT, TEXT)
    try:
        server = smtplib.SMTP("smtp.gmail.com", 587)
        server.ehlo()
        server.starttls()
        server.login(gmail_user, gmail_pwd)
        server.sendmail(FROM, TO, message)
        server.close()
        print 'Successfully sent the mail'
        print up
    except:
        print "Failed to send mail"

def site_check():
    ''' function to monitor up time '''
    import requests

    for client in clients:
        try:
            r = requests.get(client)
            if r.status_code == requests.codes.ok:
                up.append(client)
                time.sleep(15)
            else:
                down.append(client)
        except requests.ConnectionError:
            down.append(client)

    if not down:
        print "All Good"
        print up
    else:
        send_email(down)

site_check()