faraday/script/generate_certs
2020-05-27 17:26:31 +01:00

49 lines
1.5 KiB
Ruby
Executable File

#!/usr/bin/env ruby
# frozen_string_literal: true
# Usage: generate_certs [options]
# options:
# -s Display shell exports that link env variables to filenames
# Generate test certs for testing Faraday with SSL
require 'openssl'
require 'fileutils'
# Adapted from WEBrick::Utils. Skips cert extensions so it
# can be used as a CA bundle
def create_self_signed_cert(bits, cname, _comment)
rsa = OpenSSL::PKey::RSA.new(bits)
cert = OpenSSL::X509::Certificate.new
cert.version = 2
cert.serial = 1
name = OpenSSL::X509::Name.new(cname)
cert.subject = name
cert.issuer = name
cert.not_before = Time.now
cert.not_after = Time.now + (365 * 24 * 60 * 60)
cert.public_key = rsa.public_key
cert.sign(rsa, OpenSSL::Digest.new('SHA1'))
[cert, rsa]
end
def write(file, contents, env_var)
FileUtils.mkdir_p(File.dirname(file))
File.open(file, 'w') { |f| f.puts(contents) }
puts %(export #{env_var}="#{file}") if ARGV.include? '-s'
end
# One cert / CA for ease of testing when ignoring verification
cert, key = create_self_signed_cert(1024, [%w[CN localhost]],
'Faraday Test CA')
write 'tmp/faraday-cert.key', key, 'SSL_KEY'
write 'tmp/faraday-cert.crt', cert, 'SSL_FILE'
# And a second CA to prove that verification can fail
cert, key = create_self_signed_cert(1024, [%w[CN real-ca.com]],
'A different CA')
write 'tmp/faraday-different-ca-cert.key', key, 'SSL_KEY_ALT'
write 'tmp/faraday-different-ca-cert.crt', cert, 'SSL_FILE_ALT'