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For some reason, some users seem not to be able to keep their hands off the settings of my KonicaMinolta Bizhub 283. They keep changing the paper format for tray 2 to PlainPaper, causing all kinds of problems. Since there is no way to lock the settings, I started to monitor them and report them.

This is my Nagios script:

#!/usr/bin/python
 
import os
import pycurl
import cStringIO
import re
import random
import time
import tempfile
import sys
 
from lxml import etree
 
newcookiefile = tempfile.NamedTemporaryFile()
 
if len(sys.argv)!=2:
        print "Usage: "+sys.argv[0]+" [printer ip or hostname]"
        sys.exit(1)
 
buf = cStringIO.StringIO()
c = pycurl.Curl()
c.setopt(pycurl.URL, "http://"+sys.argv[1]+"/wcd/index.html")
c.setopt(pycurl.COOKIEFILE, newcookiefile.name)
c.setopt(pycurl.COOKIEJAR, newcookiefile.name)
c.setopt(pycurl.WRITEFUNCTION, buf.write)
c.setopt(pycurl.FOLLOWLOCATION, 1)
c.setopt(pycurl.ENCODING, "")
c.setopt(pycurl.SSL_VERIFYPEER, 0)
c.setopt(pycurl.SSL_VERIFYHOST, 0)
c.setopt(pycurl.USERAGENT, "Something")
c.perform()
curlData = buf.getvalue()
buf.close()
 
buf = cStringIO.StringIO()
c = pycurl.Curl()
c.setopt(pycurl.URL, "http://"+sys.argv[1]+"/wcd/system.xml")
c.setopt(pycurl.COOKIEFILE, newcookiefile.name)
c.setopt(pycurl.COOKIEJAR, newcookiefile.name)
c.setopt(pycurl.WRITEFUNCTION, buf.write)
c.setopt(pycurl.FOLLOWLOCATION, 1)
c.setopt(pycurl.ENCODING, "")
c.setopt(pycurl.SSL_VERIFYPEER, 0)
c.setopt(pycurl.SSL_VERIFYHOST, 0)
c.setopt(pycurl.USERAGENT, "Something")
c.perform()
curlData = buf.getvalue()
buf.close()
 
#print curlData
 
tree = etree.fromstring(curlData)
root = etree.Element("root")
paperformat=tree.xpath('/MFP/DeviceInfo/Input/TrayList/Tray/TrayID[text()="Tray2"]/../CurrentPaper/MediaType')[0].text
 
if "PlainPaper" == paperformat:
        print "Someone touched the settings - again!"
        sys.exit(2)
 
print "OK"
sys.exit(0)

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How to monitor a Konica-Minolta printer’s settings using Nagios

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