#!/usr/bin/env ruby

def cert_info(crt)
  check_cmd = 'openssl x509 -inform pem -subject -fingerprint -issuer -sha256 -dates'
  IO.popen(check_cmd, 'w+') do |process|
    process.write crt
    process.close_write
    return process.read
  end
end

def split_certs(input)
  inside_cert = false
  certs = []
  input.each do |line|
    case line
    when /^-+BEGIN\s+CERTIFICATE-+$/
      certs << line
      inside_cert = true
      next
    when /^-+END\s+CERTIFICATE-+$/
      certs.last << line
      inside_cert = false
      next
    end
    if inside_cert
      certs.last << line
    end
  end
  certs
end

split_certs(ARGF).each do |c|
  puts "", cert_info(c)
end