Checks for Availablity of a PJSIP endpoint to use with Nagios or similar software, requires python3. Based on portions of jfinstrom/asterisk.py but rewritten using asterisk command.

check_pjsip_endpoint.py

#!/home/user/check_peers/venv/bin/python

"""
Based on portions of jfinstrom/asterisk.py but rewritten using asterisk command, 
checks for Availablity of a PJSIP endpoint to use with Nagios or similar software, requires python3.
Usages: ./check_pjsip_endpoint.py <ext> (e.g. ./check_pjsip_endpoint.py 200)
Output: Endpoint 200 is Available at 200/sip:[email protected]:5060;transport=ud, is not in use and RTT is 26.426.
"""

import subprocess
import sys, re

def make_dict(data):
    ret = {}
    for line in data.split("\n"):
        parts = re.findall("^(.*?): (.*)", line, re.IGNORECASE)
        if parts:
            if len(parts[0]) == 2:
                ret[parts[0][0].strip()] = parts[0][1].strip()
    return ret


ext = int(sys.argv[1])
cmd = f"/usr/sbin/asterisk -x 'pjsip show endpoint {ext}'"


output = subprocess.check_output(cmd, shell=True)
resp = make_dict(output.decode())

try:
    contact = ' '.join(resp['Contact'].split())
    endpoint = ' '.join(resp['Endpoint'].split())

    contact_list = contact.split(' ')
    endpoint_list = endpoint.split(' ')


    if 'Unavail' in contact or 'Unavailable' in endpoint:
        state = 'Unavailable'
    elif 'Avail' in contact:
        state = 'Available'
    else:
        state = 'Unknown'

    rtt = contact_list[-1]
    uri = contact_list[0]
    
    if 'Not in use' in endpoint:
        call_state = 'not in use'
    elif 'In use' in endpoint:
        call_state = 'in use'
    else:
        call_state = 'unknown'

    if state == 'Available':
        print(f"Endpoint {ext} is {state} at {uri}, is {call_state} and RTT is {rtt}.")
        sys.exit(0)
    elif state == 'Unavailable':
        print(f"Endpoint {ext} is {state}.")
        sys.exit(2)
    else:
        print(f"State of endpoint {ext} could not determined.")
        sys.exit(3)
        
except Exception as e:
    print(f"Failed to parse results. {e}.")
    sys.exit(3)