mirror of
https://github.com/jokob-sk/NetAlertX.git
synced 2025-12-07 01:26:11 -08:00
150 lines
4.5 KiB
Python
Executable File
150 lines
4.5 KiB
Python
Executable File
#!/usr/bin/env python
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# test script by running:
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# tbc
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import os
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import pathlib
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import argparse
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import subprocess
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import sys
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import hashlib
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import csv
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import sqlite3
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import re
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from io import StringIO
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from datetime import datetime
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# Register NetAlertX directories
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INSTALL_PATH="/app"
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sys.path.extend([f"{INSTALL_PATH}/front/plugins", f"{INSTALL_PATH}/server"])
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from plugin_helper import Plugin_Object, Plugin_Objects, decodeBase64
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from logger import mylog, append_line_to_file
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from helper import timeNowTZ, get_setting_value
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from const import logPath, applicationPath, fullDbPath
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from database import DB
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from device import Device_obj
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import conf
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from pytz import timezone
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# Make sure the TIMEZONE for logging is correct
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conf.tz = timezone(get_setting_value('TIMEZONE'))
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CUR_PATH = str(pathlib.Path(__file__).parent.resolve())
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LOG_FILE = os.path.join(CUR_PATH, 'script.log')
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RESULT_FILE = os.path.join(CUR_PATH, 'last_result.log')
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pluginName = 'NSLOOKUP'
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def main():
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mylog('verbose', [f'[{pluginName}] In script'])
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timeout = get_setting_value('NSLOOKUP_RUN_TIMEOUT')
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# Create a database connection
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db = DB() # instance of class DB
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db.open()
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# Initialize the Plugin obj output file
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plugin_objects = Plugin_Objects(RESULT_FILE)
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# Create a Device_obj instance
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device_handler = Device_obj(db)
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# Retrieve devices
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unknown_devices = device_handler.getUnknown()
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mylog('verbose', [f'[{pluginName}] Unknown devices count: {len(unknown_devices)}'])
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for device in unknown_devices:
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domain_name, dns_server = execute_nslookup(device['dev_LastIP'], timeout)
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if domain_name != '':
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plugin_objects.add_object(
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# "MAC", "IP", "Server", "Name"
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primaryId = device['dev_MAC'],
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secondaryId = device['dev_LastIP'],
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watched1 = dns_server,
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watched2 = domain_name,
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watched3 = '',
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watched4 = '',
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extra = '',
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foreignKey = device['dev_MAC'])
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plugin_objects.write_result_file()
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mylog('verbose', [f'[{pluginName}] Script finished'])
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return 0
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#===============================================================================
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# Execute scan
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#===============================================================================
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def execute_nslookup (ip, timeout):
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"""
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Execute the NSLOOKUP command on IP.
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"""
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nslookup_args = ['nslookup', ip]
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# Execute command
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output = ""
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try:
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# try runnning a subprocess with a forced (timeout) in case the subprocess hangs
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output = subprocess.check_output (nslookup_args, universal_newlines=True, stderr=subprocess.STDOUT, timeout=(timeout), text=True)
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domain_name = ''
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dns_server = ''
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# mylog('verbose', [f'[{pluginName}] DEBUG OUTPUT : {output}'])
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# Parse output using case-insensitive regular expressions
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domain_pattern = re.compile(r'name\s*=\s*([^\s]+)', re.IGNORECASE)
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server_pattern = re.compile(r'Server:\s+(.+)', re.IGNORECASE)
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domain_match = domain_pattern.search(output)
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server_match = server_pattern.search(output)
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if domain_match:
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domain_name = domain_match.group(1)
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mylog('verbose', [f'[{pluginName}] Domain Name: {domain_name}'])
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if server_match:
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dns_server = server_match.group(1)
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mylog('verbose', [f'[{pluginName}] DNS Server: {dns_server}'])
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return domain_name, dns_server
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except subprocess.CalledProcessError as e:
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# An error occurred, handle it
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if "NXDOMAIN" in e.output:
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mylog('verbose', [f'[{pluginName}]', f"No PTR record found for IP: {ip}"])
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else:
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mylog('verbose', [f'[{pluginName}]', e.output])
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# Handle other errors here
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# mylog('verbose', [f'[{pluginName}] ⚠ ERROR - check logs'])
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except subprocess.TimeoutExpired as timeErr:
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mylog('verbose', [f'[{pluginName}] TIMEOUT - the process forcefully terminated as timeout reached'])
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if output == "": # check if the subprocess failed
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tmp = 1 # can't have empty
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# mylog('verbose', [f'[{pluginName}] Scan: FAIL - check logs'])
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else:
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mylog('verbose', [f'[{pluginName}] Scan: SUCCESS'])
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return '', ''
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#===============================================================================
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# BEGIN
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#===============================================================================
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if __name__ == '__main__':
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main() |