intopmode.py

import netmiko
import commands
import smtplib
import os
from netmiko import ConnectHandler
from email.mime.text import MIMEText
from email.MIMEMultipart import MIMEMultipart


exception = (netmiko.ssh_exception.NetMikoTimeoutException,
             netmiko.ssh_exception.NetMikoAuthenticationException,
             netmiko.ssh_exception.NetMikoTimeoutException,
             netmiko.NetMikoTimeoutException,
             netmiko.NetMikoAuthenticationException,
             netmiko.NetmikoTimeoutError,
             netmiko.NetmikoAuthError,
             netmiko.ssh_exception.SSHException,
             netmiko.ssh_exception.AuthenticationException)

#declairing variables for the networking devices
switch_1 = {'device_type': 'cisco_ios', 'ip': '192.168.0.11', 'username': 'username', 'password': 'password'}
switch_2 = {'device_type': 'cisco_ios', 'ip': '192.168.0.22', 'username': 'username', 'password': 'password'}
switch_3 = {'device_type': 'cisco_ios', 'ip': '192.168.0.33', 'username': 'username', 'password': 'password'}
switch_4 = {'device_type': 'cisco_ios', 'ip': '192.168.0.44', 'username': 'username', 'password': 'password'}
switch_5 = {'device_type': 'cisco_ios', 'ip': '192.168.0.55', 'username': 'username', 'password': 'password'}
switch_6 = {'device_type': 'cisco_ios', 'ip': '192.168.0.66', 'username': 'username', 'password': 'password'}
switch_all = [switch_1, switch_2, switch_3, switch_4, switch_5, switch_6]

for a_device in switch_all: #Loop through all devices in switch_all

  try:
    net_connect = ConnectHandler(**a_device)
    currentDev = ("{}").format(a_device['ip'])

    sFileName = ("/root/python.sc/intopmode/.Status_{}.txt").format(a_device['ip'])
    oldFileName = ("/root/python.sc/intopmode/Status_{}.old").format(a_device['ip'])
    cSFileName = ("/root/python.sc/intopmode/Cut_Status_{}.txt").format(a_device['ip'])
    diffFileName = ("/root/python.sc/intopmode/Last_Change{}.txt").format(a_device['ip'])

    output = net_connect.send_command("sho int status | inc trunk | routed") #get current status of interfaces
    StatusW = open(sFileName, "w")
    StatusW.write(output)
    StatusW.close()
    cut = commands.getoutput("cut -b 1-10 '" + sFileName + "' ") #return only the first ten columns
    cutStatusW = open(cSFileName, "w")
    cutStatusW.write(cut)
    cutStatusW.close()
    diff = commands.getoutput("diff '" + cSFileName + "' '" + oldFileName + "' ")
    diffStatus = open(diffFileName, "w")
    diffStatus.write(diff)
    diffStatus.close()

    iface = commands.getoutput(" cat '" + diffFileName + "' | grep '<' ")
    iface2 = commands.getoutput(" cat '" + diffFileName + "' | grep '>' ")


    print("\n\n\n\n\n\n\n>>>>>>>>>>>>>>>> Status {0} <<<<<<<<<<<<<<<").format(a_device['ip'])
    print(diff)
    print(">>>>>>>>>>>>>>>>         End         <<<<<<<<<<<<<<<<\n\n\n\n\n\n\n")
    commands.getoutput(" mv -f '" + cSFileName + "' '" + oldFileName + "' ")


    if os.stat(diffFileName).st_size == 0:
        pass
    else:
        body = iface
        body = MIMEText(body)
        fromaddr = "****@gmail.com"
        toaddr = "****@gmail.com"
        msg = MIMEMultipart()
        msg['From'] = fromaddr
        msg['To'] = toaddr
        msg['Subject'] = "WARNING: Port operating mode has changed! " + str(currentDev) + str(iface) + str(iface2)
        msg.attach(body)
        server = smtplib.SMTP('smtp.gmail.com', 587)
        server.starttls()
        server.login(fromaddr, "****")
        text = msg.as_string()
        server.sendmail(fromaddr, toaddr, text)
        server.quit()

  except exception:
    print("Error: {} could not be contacted!").format(a_device['ip'])