RadPythonScripts/RadMultiTftpUploadTelnet.py at main · StefanoBrumana/RadPythonScripts · GitHub

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#python script version 0.3 January 2021 to access via telnet
#and export via tftp the startup-config from a list of Rad
#devices all with same username, password and optional enable password
#enter commands and send their startup-config to the root folder of a TFTP server
#tested in python 3.8.5 on windows 7 pro 64 bit with 3cDaemon TFTP server
#pip version 20.1.1
#ssh libraries: paramiko version 2.7.2, netmiko version 3.3.2
#import required python libraries to execute this script
import getpass
import sys
import telnetlib
import time
import socket
import os
import re
from datetime import datetime

#user is prompted to insert unique username and password of all the target devices
print ("########################################################")
print ("Python script to export startup-config via TFTP from Rad")
print ("##########FaAndàIMan####################################")
user=input("Enter Username: ")
password=getpass.getpass()
#enter the ip address of the tftp server where startup-configs will be exported
tftp_server= input ("Type IP address of TFTP server: ")

#check that ip address of the tftp_server is properly typed by the end user
#in case of error the script will be immediately terminated
regex = '''^(25[0-5]|2[0-4][0-9]|[0-1]?[0-9][0-9]?)\.(
  25[0-5]|2[0-4][0-9]|[0-1]?[0-9][0-9]?)\.(
  25[0-5]|2[0-4][0-9]|[0-1]?[0-9][0-9]?)\.(
  25[0-5]|2[0-4][0-9]|[0-1]?[0-9][0-9]?)$'''

def check(tftp_server):
 if(re.search(regex, tftp_server)):
  print("###############################################################")
  print("You entered a valid IP address")
  print("TFTP server MUST be running on such host")
  print("Its firewall or anti-virus should not discard any incoming file")
  print("###############################################################")
 else:
  print("###################################################################")
  print("ERROR: you entered an invalid IP address: script will be terminated")
  print("Re-launch the script and type a correct IP address")
  print("###################################################################")
  time.sleep(5)
  quit()
check(tftp_server)

print ("All operations logged into tftp-log.txt of your present folder")
time.sleep(2)

#all activities on screen will be saved into tftp-log.txt file created in
#the same folder of this script: any previous copy of tftp-log will be overwritten
stdout_fileno = sys.stdout
sys.stdout = open("tftp-log.txt","w")

#open file ip.txt to retrieve addresses of target devices
#this ip.txt file must be in same folder of this python script
iplist=open("ip.txt")

for line in iplist:
 Host=line.strip("\n")
 sys.stdout.write ("Working on device " + Host + "\n" )
 stdout_fileno.write ("Working on device " + Host + "\n" )
 #telnet performed on default TCP port 23
 try:
  tn = telnetlib.Telnet(Host,23)
  #following line must exactly match the prompt of the target device
  #telnet the target device to verify if its exact prompt is Login:
  #or Username: or user> or something else
  tn.read_until(b"user>")
  tn.write(user.encode("ascii") + b"\n")
  #following line must exactly match the prompt of the target device
  #telnet the target device to verify if its exact prompt is Password:
  #or password: or password> or something else
  tn.read_until(b"Password:")
  tn.write(password.encode("ascii")+ b"\n")
  time.sleep(2)
  #activities will be displayed both on screen and saved into tftp-log.txt file
  #created in the same folder of this script
  sys.stdout.write ("Exporting the startup-config..." + "\n")
  stdout_fileno.write ("Exporting the startup-config..." + "\n")
  #startup-config exported from the target device will be saved into the root
  #folder of the tftp server with an unique name startup-config_IPaddress_date/time
  #IP adddress is from the target device
  timestr = datetime.now().strftime("%m%d%Y-%H%M%S")
  config_file = "file copy startup-config tftp://" + tftp_server + "/startup-config_" + Host + "_" + timestr
  tn.write(config_file.encode("ascii") + b"\n")
  time.sleep(5)
  tn.write(b"\n")
  #telnet session MUST be closed properly with a logout command otherwise log files will not be
  #created or the telnet session will not work reliably
  tn.write(b"logout\n")
  sys.stdout.write ("End of operations on device " + Host + "\n")
  stdout_fileno.write ("End of operations on device " + Host + "\n")
  sys.stdout.write ("File is in root folder of TFTP server " + tftp_server + "\n")
  stdout_fileno.write ("File is in root folder of TFTP server " + tftp_server + "\n")
  sys.stdout.write ("It is called startup-config_" + Host + "_" + timestr + "\n")
  stdout_fileno.write ("It is called startup-config_" + Host + "_" + timestr + "\n")
  tn.close()
 except IOError:
  sys.stdout.write ("Unable to reach via telnet device " + Host + "\n")
  stdout_fileno.write ("Unable to reach via telnet device " + Host + "\n")
  time.sleep(2)
  pass

iplist.close()

sys.stdout.write ("############# end of python script #############\n")
stdout_fileno.write ("############# end of python script #############\n")
sys.stdout.write ("All operations logged into tftp-log.txt of your present folder\n")
stdout_fileno.write ("All operations logged into tftp-log.txt of your present folder\n")
sys.stdout.write ("Log closed on " + timestr + "\n")
stdout_fileno.write ("Log closed on " + timestr + "\n")


sys.stdout.close()
sys.stdout = stdout_fileno