NessusDownload.py

#!/usr/bin/python3
r''' 
	Copyright 2025 Photubias(c)

        This program is free software: you can redistribute it and/or modify
        it under the terms of the GNU General Public License as published by
        the Free Software Foundation, either version 3 of the License, or
        (at your option) any later version.

        This program is distributed in the hope that it will be useful,
        but WITHOUT ANY WARRANTY; without even the implied warranty of
        MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
        GNU General Public License for more details.

        You should have received a copy of the GNU General Public License
        along with this program.  If not, see <http://www.gnu.org/licenses/>.

        File name GetNessusHomeCode.py
        written by Photubias(c)

        This script will use the Official Tenable website and download Nessus
        Only requirement is an internet connection to tenable.com

        Of course: no warranty in case the API is changed
	Run with any extra parameter to download (x64), install and 
            generate the startup script
'''
## The Banner
import os, sys, json, urllib.request, http.cookiejar
print(r'''
[*****************************************************************************]
                  --- Nessus Linux Debian deb downloader ---
               This script will use the Official Tenable website.
            Only requirement is an internet connection to tenable.com
                               NO WARRANTIES!
______________________/-> Created By Tijl Deneut(c) <-\_______________________
[*****************************************************************************]
''')

strNessusURL = 'https://www.tenable.com/downloads/api/v1/public/pages/nessus'
strFile = strFileID =  None
strAgreeURL = r'https://www.tenable.com/downloads/pages/60/downloads/{DownloadID}/get_download_file'
strNessusDownloadURL = r'https://www.tenable.com/downloads/api/v1/public/pages/nessus/downloads/xxxxxx/download?i_agree_to_tenable_license_agreement=true'
bInteractive = True

if len(sys.argv) > 1:
    bInteractive = False
    print('--- Extra argument detected.')
    print('     Performing download AND installation AND script creation')

## Step0: get file names
print('--- Getting filenames...')
cookjar = http.cookiejar.CookieJar()
opener = urllib.request.build_opener(urllib.request.HTTPCookieProcessor(cookjar))
opener.addheaders = [('User-Agent','Python')]
NessusList = opener.open(strNessusURL)
jsonArr = json.loads(NessusList.read())
for el in jsonArr['downloads']:
    if 'Kali' in el['description']:
        if not strFile: ## If already defined, do not overwrite var
            strFile = el['file']
            strFileID = str(el['id'])

## Step2: download
strNessusDownloadURL = strNessusDownloadURL.replace('xxxxxx',strFileID)
try:
    print('--- Downloading: ' + strFile)
    #DownloadPage = urllib2.urlopen(urllib2.Request(strNessusDownloadURL, headers={'User-Agent':'Python'}))
    DownloadPage = opener.open(strNessusDownloadURL)
    myFile = open(strFile, "wb")
    myFile.write(DownloadPage.read())
    myFile.close()
except:
    print(sys.exc_info()[0])
    exit(1)
if bInteractive: print(f'      Run "dpkg -i {strFile}" to install.')
else: ## Installing and creating script
    print('--- Starting installation ...')
    os.system(f'dpkg -i {strFile} && rm {strFile}')
    os.system(r'echo \#\!/bin/bash >startNessus.sh')
    os.system(r'echo sudo service nessusd start >>startNessus.sh')
    os.system(r'echo "firefox https://127.0.0.1:8834 &" >>startNessus.sh')
    os.system(r'chmod +x startNessus.sh')
print(r'--- All done')
exit(0)