13
12

Delete article

Deleted articles cannot be recovered.

Draft of this article would be also deleted.

Are you sure you want to delete this article?

More than 5 years have passed since last update.

Rubyスクリプトでサーバ証明書の期限をチェック

Last updated at Posted at 2012-12-26

この記事は最終更新から1年以上経過しています。 気をつけてね。

SSLコネクション用のサーバ証明書の期限をチェックして、OKなら0,NGなら2で終了するNagiosプラグイン的なスクリプト。

check_cert_period.rb
#!/usr/bin/env ruby
# -*- coding:utf-8 -*-
require 'socket'
require 'openssl'
require 'timeout'
include OpenSSL

timeout=15

r_host = ARGV[0] || "google.com"
r_date = ARGV[1] || 30
r_port = ARGV[2] || 443
r_date_s = r_date.to_i * 60 * 60 * 24

# set SSL config
ssl_conf = SSL::SSLContext.new()
# ssl_conf.verify_mode=SSL::VERIFY_PEER

# create ssl connection.
begin
  timeout(timeout) {
    @soc = TCPSocket.new(r_host.to_s, r_port.to_i)
    @ssl = SSL::SSLSocket.new(@soc, ssl_conf)
    @ssl.connect
  }

rescue Timeout::Error => e
  puts "CRITICAL - #{e.class} couldn't connext to #{r_host.to_s}:#{r_port.to_i}"
  exit 2
rescue => e
  puts "CRITICAL - #{e.class} #{e.message}"
  exit 2
end

# check period.
if (@ssl.peer_cert.not_after - Time.now) < r_date_s
  puts "CRITICAL - Certificate expired on #{@ssl.peer_cert.not_after}"
  exit 2
else
  puts "OK - Certificate will expire on #{@ssl.peer_cert.not_after}"
end
  
@ssl.close
@soc.close

実行結果

第2引数に期限、3つ目にポートをオプションで。

$ ./check_cert_period.rb google.com 30 
OK - Certificate will expire on 2013-06-07 19:43:27 UTC
$ ./check_cert_period.rb google.com 360
CRITICAL - Certificate expired on 2013-06-07 19:43:27 UTC
$ echo $?
2
13
12
0

Register as a new user and use Qiita more conveniently

  1. You get articles that match your needs
  2. You can efficiently read back useful information
  3. You can use dark theme
What you can do with signing up
13
12

Delete article

Deleted articles cannot be recovered.

Draft of this article would be also deleted.

Are you sure you want to delete this article?