Applied Python - Week 2 Exercises

Week2Ex1.py

# Applied Python
# Class 2 exercise 1
#

import snmp_helper
import time

IP = '#.#.#.#'
a_user = '####'
auth_key = '####'
encrypt_key = '####'
snmp_user = (a_user, auth_key, encrypt_key)
pynet_rtr2 = (IP, 8061)

sys_name = '1.3.6.1.2.1.1.5.0'
RunConfChange = '1.3.6.1.4.1.9.9.43.1.1.1.0'

snmp_rtr_name = snmp_helper.snmp_get_oid_v3(pynet_rtr2, snmp_user, oid=sys_name)
snmp_data = snmp_helper.snmp_get_oid_v3(pynet_rtr2, snmp_user, oid=RunConfChange)
localtime = time.asctime( time.localtime(time.time()) )
print "Local time:", localtime
output = int(snmp_helper.snmp_extract(snmp_data))
rtr_name = snmp_helper.snmp_extract(snmp_rtr_name)
print "Global - %s running config last changed: %s" % (rtr_name, output)

# Initial time value variable is created to use in the while loop
CurrentRunTime = int(output)


###Email Function Kirk provided in his email to the class
def send_mail(recipient, subject, message, sender):
    '''
    Simple function to help simplify sending SMTP email

    Assumes a mailserver is available on localhost
    '''

    import smtplib
    from email.mime.text import MIMEText

    message = MIMEText(message)
    message['Subject'] = subject
    message['From'] = sender
    message['To'] = recipient

    # Create SMTP connection object to localhost
    smtp_conn = smtplib.SMTP('localhost')

    # Send the email
    smtp_conn.sendmail(sender, recipient, message.as_string())

    # Close SMTP connection

    smtp_conn.quit()

    return True


# Current time is the value pulled initially. As long as output and CurrentRunTime equal while loop will keep running
# Once router config is changed the values will not be equal and the else block goes into effect
while (output == CurrentRunTime):
    snmp_data = snmp_helper.snmp_get_oid_v3(pynet_rtr2, snmp_user, oid=RunConfChange)
    snmp_rtr_name = snmp_helper.snmp_get_oid_v3(pynet_rtr2, snmp_user, oid=sys_name)
    output  = int(snmp_helper.snmp_extract(snmp_data))
    rtr_name = snmp_helper.snmp_extract(snmp_rtr_name)
    print "while loop - %s running config last changed: %s" % (rtr_name, output)
    time.sleep(10)
# This event will triggers the email with the output timers and system included.
else:
    localtime = time.asctime( time.localtime(time.time()) )
    print "Local time:", localtime
    rtr_name = snmp_helper.snmp_extract(snmp_rtr_name)
    output = int(snmp_helper.snmp_extract(snmp_data))
    print '''else clause - %s running configuration just changed.
    
    Local time: %s
    
    Time pulled on router was: %s
    
    '''  % (rtr_name, localtime, output)
    time.sleep(0)
    recipient = '[email protected]'
    subject = 'Test message'
    message = ''' %s running configuration just changed.
    
    Local time: %s
    
    Time pulled on router: %s 
    ''' % (rtr_name, localtime, output)
    sender = '[email protected]'
    send_mail(recipient, subject, message, sender)

Updated with:
localtime = time.asctime( time.localtime(time.time()) )
print "Local time:", localtime

Removed: time.localtime()