zgethistory.py

#!/usr/bin/env python
#
# import needed modules.
# pyzabbix is needed, see https://github.com/lukecyca/pyzabbix
#
# Pillow is also needed, see https://github.com/python-pillow/Pillow
#
#
import argparse
import ConfigParser
import os
import os.path
import distutils.util
import requests
import time
import sys
from cStringIO import StringIO
from PIL import Image
from pyzabbix import ZabbixAPI

# define config helper function
def ConfigSectionMap(section):
    dict1 = {}
    options = Config.options(section)
    for option in options:
 	try:
		dict1[option] = Config.get(section, option)
		if dict1[option] == -1:
			DebugPrint("skip: %s" % option)
	except:
		print("exception on %s!" % option)
		dict1[option] = None
    return dict1


# set default vars
defconf = os.getenv("HOME") + "/.zbx.conf"
username = ""
password = ""
api = ""
noverify = ""

# Define commandline arguments
parser = argparse.ArgumentParser(formatter_class=argparse.RawDescriptionHelpFormatter,description='Get item values from Zabbix history', epilog="""
This program can use .ini style configuration files to retrieve the needed API connection information.
To use this type of storage, create a conf file (the default is $HOME/.zbx.conf) that contains at least the [Zabbix API] section and any of the other parameters:
       
 [Zabbix API]
 username=johndoe
 password=verysecretpassword
 api=https://zabbix.mycompany.com/path/to/zabbix/frontend/
 no_verify=true

""")
parser.add_argument('itemid', help='The item that we are going to query the history from')
parser.add_argument('-u', '--username', help='User for the Zabbix api and frontend')
parser.add_argument('-p', '--password', help='Password for the Zabbix user')
parser.add_argument('-a', '--api', help='Zabbix URL')
parser.add_argument('--no-verify', help='Disables certificate validation when using a secure connection',action='store_true') 
parser.add_argument('-c','--config', help='Config file location (defaults to $HOME/.zbx.conf)')
parser.add_argument('-s', '--starttime', type=int, help='Starting time for the graph in seconds from Unix Epoch')
parser.add_argument('-t', '--timeperiod', type=int, default=3600, help='Timeperiod for the graph in seconds (defaults to 3600)')
parser.add_argument('-C', '--count', type=int, help='Number of values returned')
parser.add_argument('-e', '--extended', help='Returns timestamps (Unixtime in nanoseconds), units and values seperated by a ":"',action='store_true')
args = parser.parse_args()

# load config module
Config = ConfigParser.ConfigParser()
Config

# if configuration argument is set, test the config file
if args.config:
 if os.path.isfile(args.config) and os.access(args.config, os.R_OK):
  Config.read(args.config)

# if not set, try default config file
else:
 if os.path.isfile(defconf) and os.access(defconf, os.R_OK):
  Config.read(defconf)

# try to load available settings from config file
try:
 username=ConfigSectionMap("Zabbix API")['username']
 password=ConfigSectionMap("Zabbix API")['password']
 api=ConfigSectionMap("Zabbix API")['api']
 noverify=bool(distutils.util.strtobool(ConfigSectionMap("Zabbix API")["no_verify"]))
except:
 pass

# override settings if they are provided as arguments
if args.username:
 username = args.username

if args.password:
 password = args.password

if args.api:
 api = args.api

if args.no_verify:
 noverify = args.no_verify

# test for needed params
if not username:
 sys.exit("Error: API User not set")

if not password:
 sys.exit("Error: API Password not set")
 
if not api:
 sys.exit("Error: API URL is not set")

# Setup Zabbix API connection
zapi = ZabbixAPI(api)

if noverify is True:
 zapi.session.verify = False

# Login to the Zabbix API
zapi.login(username, password)

##################################
# Start actual API logic
##################################

# set the hostname we are looking for
itemid = args.itemid

# Find graph from API
item = zapi.item.get(output="extend", itemids=itemid)

if item:

  # Get the right valuetype for the item
  # 0 - float
  # 1 - character
  # 2 - log
  # 3 - numeric unsigned
  # 4 - text
  valtype=item[0]['value_type']
  
  # Get units for the item
  unit=item[0]['units']

  # Set time period
  period = args.timeperiod


  # set the starting time for the item
  if args.starttime:
    stime=int(args.starttime)
  else:
     stime=int(time.time()-period)

  etime=int(stime+period)

  if args.count:
     # count to use for limiit
     count = int(args.count)
     itemhist=zapi.history.get(itemids=itemid,history=valtype,time_from=stime,time_till=etime,output='extend',limit=count)
  else:
     itemhist=zapi.history.get(itemids=itemid,history=valtype,time_from=stime,time_till=etime,output='extend')
  if itemhist:
    if args.extended:
      for record in itemhist:
        print(format(record['clock'])+"."+format(record['ns'])+":"+format(unit)+":"+format(record["value"]))
    else:
      for record in itemhist:
        print(format(record["value"]))
  else:
    sys.exit("Error: No values returned for itemid " + itemid)
else:
    sys.exit("Error: Could not find itemid "+ itemid)

# And we're done...