# frozen_string_literal: true

require_relative 'spec_helper'

describe Dyndnsd::Daemon do
  include Rack::Test::Methods

  def app
    Dyndnsd.logger = Logger.new(STDOUT)
    Dyndnsd.logger.level = Logger::UNKNOWN

    config = {
      'domain' => 'example.org',
      'users' => {
        'test' => {
          'password' => 'secret',
          'hosts' => ['foo.example.org', 'bar.example.org']
        }
      }
    }
    db = Dyndnsd::DummyDatabase.new({})
    updater = Dyndnsd::Updater::Dummy.new
    daemon = Dyndnsd::Daemon.new(config, db, updater)

    app = Rack::Auth::Basic.new(daemon, 'DynDNS', &daemon.method(:authorized?))

    app = Dyndnsd::Responder::DynDNSStyle.new(app)

    Rack::Tracer.new(app, trust_incoming_span: false)
  end

  it 'requires authentication' do
    get '/'
    expect(last_response.status).to eq(401)
    expect(last_response.body).to eq('badauth')
  end

  it 'requires configured correct credentials' do
    authorize 'test', 'wrongsecret'
    get '/'
    expect(last_response.status).to eq(401)
    expect(last_response.body).to eq('badauth')
  end

  it 'only supports GET requests' do
    authorize 'test', 'secret'
    post '/nic/update'
    expect(last_response.status).to eq(405)
  end

  it 'provides only the /nic/update URL' do
    authorize 'test', 'secret'
    get '/other/url'
    expect(last_response.status).to eq(404)
  end

  it 'requires the hostname query parameter' do
    authorize 'test', 'secret'
    get '/nic/update'
    expect(last_response).to be_ok
    expect(last_response.body).to eq('notfqdn')
  end

  it 'supports multiple hostnames in request' do
    authorize 'test', 'secret'

    get '/nic/update?hostname=foo.example.org,bar.example.org&myip=1.2.3.4'
    expect(last_response).to be_ok
    expect(last_response.body).to eq("good 1.2.3.4\ngood 1.2.3.4")

    get '/nic/update?hostname=foo.example.org,bar.example.org&myip=2001:db8::1'
    expect(last_response).to be_ok
    expect(last_response.body).to eq("good 2001:db8::1\ngood 2001:db8::1")
  end

  it 'rejects request if one hostname is invalid' do
    authorize 'test', 'secret'

    get '/nic/update?hostname=test'
    expect(last_response).to be_ok
    expect(last_response.body).to eq('notfqdn')

    get '/nic/update?hostname=test.example.com'
    expect(last_response).to be_ok
    expect(last_response.body).to eq('notfqdn')

    get '/nic/update?hostname=test.example.org.me'
    expect(last_response).to be_ok
    expect(last_response.body).to eq('notfqdn')

    get '/nic/update?hostname=foo.test.example.org'
    expect(last_response).to be_ok
    expect(last_response.body).to eq('notfqdn')

    get '/nic/update?hostname=in%20valid.example.org'
    expect(last_response).to be_ok
    expect(last_response.body).to eq('notfqdn')

    get '/nic/update?hostname=valid.example.org,in.valid.example.org'
    expect(last_response).to be_ok
    expect(last_response.body).to eq('notfqdn')
  end

  it 'rejects request if user does not own one hostname' do
    authorize 'test', 'secret'

    get '/nic/update?hostname=notmyhost.example.org'
    expect(last_response).to be_ok
    expect(last_response.body).to eq('nohost')

    get '/nic/update?hostname=foo.example.org,notmyhost.example.org'
    expect(last_response).to be_ok
    expect(last_response.body).to eq('nohost')
  end

  it 'updates a host on IP change' do
    authorize 'test', 'secret'

    get '/nic/update?hostname=foo.example.org&myip=1.2.3.4'
    expect(last_response).to be_ok

    get '/nic/update?hostname=foo.example.org&myip=1.2.3.40'
    expect(last_response).to be_ok
    expect(last_response.body).to eq('good 1.2.3.40')

    get '/nic/update?hostname=foo.example.org&myip=2001:db8::1'
    expect(last_response).to be_ok

    get '/nic/update?hostname=foo.example.org&myip=2001:db8::10'
    expect(last_response).to be_ok
    expect(last_response.body).to eq('good 2001:db8::10')
  end

  it 'returns IP no change' do
    authorize 'test', 'secret'

    get '/nic/update?hostname=foo.example.org&myip=1.2.3.4'
    expect(last_response).to be_ok

    get '/nic/update?hostname=foo.example.org&myip=1.2.3.4'
    expect(last_response).to be_ok
    expect(last_response.body).to eq('nochg 1.2.3.4')

    get '/nic/update?hostname=foo.example.org&myip=2001:db8::1'
    expect(last_response).to be_ok

    get '/nic/update?hostname=foo.example.org&myip=2001:db8::1'
    expect(last_response).to be_ok
    expect(last_response.body).to eq('nochg 2001:db8::1')
  end

  it 'outputs IP status per hostname' do
    authorize 'test', 'secret'

    get '/nic/update?hostname=foo.example.org&myip=1.2.3.4'
    expect(last_response).to be_ok
    expect(last_response.body).to eq('good 1.2.3.4')

    get '/nic/update?hostname=foo.example.org,bar.example.org&myip=1.2.3.4'
    expect(last_response).to be_ok
    expect(last_response.body).to eq("nochg 1.2.3.4\ngood 1.2.3.4")

    get '/nic/update?hostname=foo.example.org&myip=2001:db8::1'
    expect(last_response).to be_ok
    expect(last_response.body).to eq('good 2001:db8::1')

    get '/nic/update?hostname=foo.example.org,bar.example.org&myip=2001:db8::1'
    expect(last_response).to be_ok
    expect(last_response.body).to eq("nochg 2001:db8::1\ngood 2001:db8::1")
  end

  it 'offlines a host' do
    authorize 'test', 'secret'

    get '/nic/update?hostname=foo.example.org&myip=1.2.3.4'
    expect(last_response).to be_ok
    expect(last_response.body).to eq('good 1.2.3.4')

    get '/nic/update?hostname=foo.example.org&offline=YES'
    expect(last_response).to be_ok
    expect(last_response.body).to eq('good ')

    get '/nic/update?hostname=foo.example.org&offline=YES'
    expect(last_response).to be_ok
    expect(last_response.body).to eq('nochg ')

    get '/nic/update?hostname=foo.example.org&myip=1.2.3.4'
    expect(last_response).to be_ok
    expect(last_response.body).to eq('good 1.2.3.4')

    get '/nic/update?hostname=foo.example.org&myip=1.2.3.4&offline=YES'
    expect(last_response).to be_ok
    expect(last_response.body).to eq('good ')

    get '/nic/update?hostname=foo.example.org&myip=1.2.3.4&offline=YES'
    expect(last_response).to be_ok
    expect(last_response.body).to eq('nochg ')
  end

  it 'uses clients remote IP address if myip not specified' do
    authorize 'test', 'secret'
    get '/nic/update?hostname=foo.example.org'
    expect(last_response).to be_ok
    expect(last_response.body).to eq('good 127.0.0.1')
  end

  it 'uses clients remote IP address from X-Real-IP header if behind proxy' do
    authorize 'test', 'secret'

    get '/nic/update?hostname=foo.example.org', '', 'HTTP_X_REAL_IP' => '10.0.0.1'
    expect(last_response).to be_ok
    expect(last_response.body).to eq('good 10.0.0.1')

    get '/nic/update?hostname=foo.example.org', '', 'HTTP_X_REAL_IP' => '2001:db8::1'
    expect(last_response).to be_ok
    expect(last_response.body).to eq('good 2001:db8::1')
  end

  it 'supports an IPv4 and an IPv6 address in one request' do
    authorize 'test', 'secret'

    get '/nic/update?hostname=foo.example.org&myip=1.2.3.4&myip6=2001:db8::1'
    expect(last_response).to be_ok
    expect(last_response.body).to eq('good 1.2.3.4 2001:db8::1')

    get '/nic/update?hostname=foo.example.org&myip=BROKENIP&myip6=2001:db8::1'
    expect(last_response).to be_ok
    expect(last_response.body).to eq('nohost')

    get '/nic/update?hostname=foo.example.org&myip=1.2.3.4&myip6=BROKENIP'
    expect(last_response).to be_ok
    expect(last_response.body).to eq('nohost')

    get '/nic/update?hostname=foo.example.org&myip6=2001:db8::10'
    expect(last_response).to be_ok
    expect(last_response.body).to eq('nohost')

    get '/nic/update?hostname=foo.example.org&myip=1.2.3.40'
    expect(last_response).to be_ok
    expect(last_response.body).to eq('good 1.2.3.40')
  end
end