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#!/usr/bin/env python3
# File: alert.py
# Location: https://gitlab.com/bgstack15/freeipa-cert-alert
# Author: bgstack15
# Startdate: 2021-10-27 14:00
# SPDX-License-Identifier: GPL-3.0
# Title: Script that Alerts For Expiring Certs
# Purpose: Send me alerts for certs that are about to expire
# History:
# Usage:
# Set env: FREEIPA_SERVER FREEIPA_USERNAME FREEIPA_PASSWORD DAYS
# References:
# https://python-freeipa.readthedocs.io/en/latest/
# https://stackoverflow.com/questions/72899/how-do-i-sort-a-list-of-dictionaries-by-a-value-of-the-dictionary/73050#73050
# https://stackoverflow.com/questions/6871016/adding-days-to-a-date-in-python/6871482#6871482
# https://stackoverflow.com/questions/24027863/convert-a-utc-time-to-epoch
# https://stackoverflow.com/questions/9989334/create-nice-column-output-in-python/9996049#9996049
# Improve:
# Dependencies:
# Somehow this is not a requisite component of freeipa! Those are named python3-ipa*
# fedora-req: python3-freeipa
import python_freeipa, json, datetime, os, sys
import dateutil.parser as dparser
# Functions
def show_list(inlist):
col1max = 0
col2max = 0
col3max = 0
for i in inlist:
col1max = max(len(i['valid_not_before']),col1max)
col2max = max(len(i['valid_not_after']),col2max)
col3max = max(len(i['subject']),col3max)
col1max = col1max+2
col2max = col2max+2
if len(inlist) > 0:
a = "Not valid before"
b = "Not valid after"
c = "Subject"
print(f"{a:<{col1max}} {b:<{col2max}} {c:<{col3max}}")
for i in inlist:
print(f"{i['valid_not_before']:<{col1max}} {i['valid_not_after']:<{col2max}} {i['subject']:<{col3max}}")
# Main
DAYS = os.getenv("DAYS",default=60)
try:
DAYS = int(DAYS)
except:
DAYS = 60
client = python_freeipa.ClientMeta(os.getenv("FREEIPA_SERVER"))
client.login(os.getenv("FREEIPA_USERNAME"),os.getenv("FREEIPA_PASSWORD"))
today = str(datetime.date.today( ))
future = str(datetime.date.today() + datetime.timedelta(days=DAYS))
results = client.cert_find(o_validnotafter_from=today,o_validnotafter_to=future)
certs = results['result']
# Sort
certs = sorted(certs,key=lambda d: int(dparser.parse(d['valid_not_after']).strftime('%s')))
if len(certs) > 0:
print(f"Certificates expiring within {DAYS} days from {today}")
show_list(certs)
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