check_dcf77

#!/usr/bin/env python3
#-------------------------------------------------------------------------------

import argparse
import sys
import os
import subprocess
import platform

#-------------------------------------------------------------------------------

_candebug = False
def candebug():
    global _candebug
    return _candebug
def setcandebug(value):
    global _candebug
    _candebug = value

def infomsg(msg):
    if candebug() == True:
        print(msg, flush=True)

def exitnagios(status,message):
    if status=="OK":
        exitcode = 0
    elif status=="WARNING":
        exitcode = 1
    elif status=="CRITICAL":
        exitcode = 2
    elif status=="UNKNOWN":
        exitcode = 3
    else:
        exitcode = 4
    print(status+": "+message, flush=True)
    sys.exit(exitcode)

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def dodcf77call(warning,critical):
    cmdline = ["/usr/bin/ntpq","-c","clocklist"]
    completedproc = subprocess.run(cmdline,capture_output=True)
    output = completedproc.stdout.decode("utf-8").strip()
    errors = completedproc.stderr.decode("utf-8").strip()
    exitcode = completedproc.returncode

    if exitcode == 0:
        percent = 0
        lines = output.splitlines()
        token = "refclock_states="
        for line in lines:
            line = line.strip()
            if line.startswith(token):
                value=line[len(token)+1:-1]
                parts=value.split(";")
                nominal = "NOMINAL:"
                for part in parts:
                    part = part.strip()
                    if part.startswith(nominal):
                        proto = part[len(nominal):].strip()
                        quasi = proto.split()[1]
                        percent = float(quasi[1:-2])
        if percent>float(warning):
            exitnagios("OK","the reception status is "+str(percent)+"% | nominal="+str(percent))
        elif percent<=float(critical):
            exitnagios("CRITICAL","the reception status is "+str(percent)+"% | nominal="+str(percent))
        else:
            exitnagios("WARNING","the reception status is "+str(percent)+"% | nominal="+str(percent))
    else:
        exitnagios("CRITICAL","issue retrieving DCF77 values")

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def main():
    parser = argparse.ArgumentParser()
    parser.add_argument("-w", "--warning",                                 dest="warning",          default="80",                                 help="warning level %")
    parser.add_argument("-c", "--critical",                                dest="critical",         default="50",                                 help="critical level %")
    parser.add_argument("-®", "--debug",             action="store_true",  dest="debug",            default=False,                                help="be more verbose")
    args = parser.parse_args()

    setcandebug(args.debug)

    dodcf77call(args.warning,args.critical)

if __name__ == "__main__":
    main()

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