mirror of
https://github.com/jokob-sk/NetAlertX.git
synced 2025-12-07 01:26:11 -08:00
127 lines
4.7 KiB
Python
Executable File
127 lines
4.7 KiB
Python
Executable File
#!/usr/bin/env python
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from __future__ import unicode_literals
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import subprocess
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import argparse
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import os
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import sys
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# Register NetAlertX directories
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INSTALL_PATH = os.getenv('NETALERTX_APP', '/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_Objects, handleEmpty, normalize_mac
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from logger import mylog, Logger
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from helper import get_setting_value
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from const import logPath
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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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# Make sure log level is initialized correctly
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Logger(get_setting_value('LOG_LEVEL'))
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pluginName = "SNMPDSC"
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LOG_PATH = logPath + '/plugins'
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RESULT_FILE = os.path.join(LOG_PATH, f'last_result.{pluginName}.log')
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# Workflow
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def main():
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mylog('verbose', ['[SNMPDSC] In script '])
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# init global variables
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global snmpWalkCmds
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parser = argparse.ArgumentParser(description='This plugin is used to discover devices via the arp table(s) of a RFC1213 compliant router or switch.')
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parser.add_argument('routers', action="store", help="IP(s) of routers, separated by comma (,) if passing multiple")
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values = parser.parse_args()
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timeoutSetting = get_setting_value("SNMPDSC_RUN_TIMEOUT")
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plugin_objects = Plugin_Objects(RESULT_FILE)
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if values.routers:
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snmpWalkCmds = values.routers.split('=')[1].replace('\'','')
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if ',' in snmpWalkCmds:
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commands = snmpWalkCmds.split(',')
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else:
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commands = [snmpWalkCmds]
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for cmd in commands:
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mylog('verbose', ['[SNMPDSC] Router snmpwalk command: ', cmd])
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# split the string, remove white spaces around each item, and exclude any empty strings
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snmpwalkArgs = [arg.strip() for arg in cmd.split(' ') if arg.strip()]
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# Execute N probes and insert in list
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probes = 1 # N probes
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for _ in range(probes):
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output = subprocess.check_output (snmpwalkArgs, universal_newlines=True, stderr=subprocess.STDOUT, timeout=(timeoutSetting))
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mylog('verbose', ['[SNMPDSC] output: ', output])
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lines = output.split('\n')
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for line in lines:
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tmpSplt = line.split('"')
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if len(tmpSplt) == 3:
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ipStr = tmpSplt[0].split('.')[-4:] # Get the last 4 elements to extract the IP
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macStr = tmpSplt[1].strip().split(' ') # Remove leading/trailing spaces from MAC
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if len(ipStr) == 4:
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macAddress = ':'.join(macStr)
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ipAddress = '.'.join(ipStr)
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mylog('verbose', [f'[SNMPDSC] IP: {ipAddress} MAC: {macAddress}'])
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plugin_objects.add_object(
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primaryId = handleEmpty(macAddress),
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secondaryId = handleEmpty(ipAddress.strip()), # Remove leading/trailing spaces from IP
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watched1 = '(unknown)',
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watched2 = handleEmpty(snmpwalkArgs[6]), # router IP
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extra = handleEmpty(line),
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foreignKey = handleEmpty(macAddress) # Use the primary ID as the foreign key
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)
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else:
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mylog('verbose', ['[SNMPDSC] ipStr does not seem to contain a valid IP:', ipStr])
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elif line.startswith('ipNetToMediaPhysAddress'):
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# Format: snmpwalk -OXsq output
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parts = line.split()
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if len(parts) == 2:
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ipAddress = parts[0].split('[')[-1][:-1]
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macAddress = normalize_mac(parts[1])
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mylog('verbose', [f'[SNMPDSC] IP: {ipAddress} MAC: {macAddress}'])
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plugin_objects.add_object(
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primaryId = handleEmpty(macAddress),
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secondaryId = handleEmpty(ipAddress.strip()),
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watched1 = '(unknown)',
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watched2 = handleEmpty(snmpwalkArgs[6]),
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extra = handleEmpty(line),
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foreignKey = handleEmpty(macAddress)
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)
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mylog('verbose', ['[SNMPDSC] Entries found: ', len(plugin_objects)])
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plugin_objects.write_result_file()
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# BEGIN
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if __name__ == '__main__':
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main()
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