SSLの証明書チェック用のRubyスクリプト

check_ssl.rb

require 'net/http'                                                                                                                                                           
require 'uri'
require 'optparse'

server = nil 
port = 443 
ca_file = nil 

opt = OptionParser.new
opt.on('-s', '--server=VAL') { |v| server = v } 
opt.on('-c', '--ca-file=VAL') { |v| ca_file = v } 
opt.on('-p', '--port=VAL', 'default:#{port}') { |v| port = v.to_i }
opt.parse!(ARGV)

if server.nil? || ca_file.nil?
  raise "option is necessary, use --help or -h option"
end

proxy = URI.parse(ENV['HTTPS_PROXY'] || ENV['https_proxy']) rescue nil 

proxy_host = proxy.host rescue nil 
proxy_port = proxy.port rescue nil 
proxy_user = proxy.user rescue nil 
proxy_pass = proxy.password rescue nil 

https = Net::HTTP::Proxy(proxy_host, proxy_port, proxy_user, proxy_pass).new(server, port)
https.use_ssl = true
https.ca_file = ca_file
https.verify_mode = OpenSSL::SSL::VERIFY_PEER
https.verify_depth = 5 

https.start do |h| 
  response = h.get("/")
  puts response.body
end