require 'test_helper'
require 'openssl'

class SmtpCertTest < ApiIntegrationTest

  test "retrieve smtp cert" do
    @user = create_invited_user effective_service_level_code: 2
    login
    post smtp_cert_url, {}, RACK_ENV
    assert_text_response
    assert_response_includes "BEGIN RSA PRIVATE KEY"
    assert_response_includes "END RSA PRIVATE KEY"
    assert_response_includes "BEGIN CERTIFICATE"
    assert_response_includes "END CERTIFICATE"
  end

  test "cert and key" do
    @user = create_invited_user effective_service_level_code: 2
    login
    post smtp_cert_url, {}, RACK_ENV
    assert_text_response
    cert = OpenSSL::X509::Certificate.new(get_response.body)
    key = OpenSSL::PKey::RSA.new(get_response.body)
    assert cert.check_private_key(key)
    prefix = "/CN=#{@user.email_address}"
    assert_equal prefix, cert.subject.to_s.slice(0,prefix.size)
  end

  test "fingerprint is stored with identity" do
    @user = create_invited_user effective_service_level_code: 2
    login
    post smtp_cert_url, {}, RACK_ENV
    assert_text_response
    cert = OpenSSL::X509::Certificate.new(get_response.body)
    fingerprint = OpenSSL::Digest::SHA1.hexdigest(cert.to_der).scan(/../).join(':')
    number, unit = APP_CONFIG[:client_cert_lifespan].split(' ')
    expiry = Time.now.utc.at_midnight.advance(unit.to_sym => number.to_i)
    expiry_string = expiry.to_date.to_s
    fingerprints = {fingerprint => expiry_string}
    assert_equal fingerprints, @user.reload.identity.cert_fingerprints
  end

  test "fetching smtp certs requires email account" do
    login
    post smtp_cert_url, {}, RACK_ENV
    assert_access_denied
  end

  test "no anonymous smtp certs" do
    with_config allow_anonymous_certs: true do
      post smtp_cert_url, {}, RACK_ENV
      assert_login_required
    end
  end

  def smtp_cert_url
    "/#{api_version}/smtp_cert"
  end
end