import os

import testinfra.utils.ansible_runner


testinfra_hosts = testinfra.utils.ansible_runner.AnsibleRunner(
    os.environ['MOLECULE_INVENTORY_FILE']).get_hosts('parameters-mandatory')


def test_nginx_tls_files(host):
    """
    Tests if TLS private key and certificate have been deployed correctly.
    """

    hostname = host.run('hostname').stdout.strip()

    with host.sudo():

        tls_file = host.file('/etc/ssl/private/%s_https.key' % hostname)
        assert tls_file.is_file
        assert tls_file.user == 'root'
        assert tls_file.group == 'root'
        assert tls_file.mode == 0o640
        assert tls_file.content_string == open("tests/data/x509/%s_https.key" % hostname, "r").read().rstrip()

        tls_file = host.file('/etc/ssl/certs/%s_https.pem' % hostname)
        assert tls_file.is_file
        assert tls_file.user == 'root'
        assert tls_file.group == 'root'
        assert tls_file.mode == 0o644
        assert tls_file.content_string == open("tests/data/x509/%s_https.pem" % hostname, "r").read().rstrip()


def test_certificate_validity_check_configuration(host):
    """
    Tests if certificate validity check configuration file has been deployed
    correctly.
    """

    hostname = host.run('hostname').stdout.strip()

    config = host.file('/etc/check_certificate/%s_https.conf' % hostname)
    assert config.is_file
    assert config.user == 'root'
    assert config.group == 'root'
    assert config.mode == 0o644
    assert config.content_string == "/etc/ssl/certs/%s_https.pem" % hostname


def test_tls_configuration(host):
    """
    Tests if the TLS has been configured correctly and works.
    """

    tls = host.run('wget -q -O - https://parameters-mandatory/')
    assert tls.rc == 0

    old_tls_versions_disabled = host.run("echo 'Q' | openssl s_client -no_tls1_2 -connect parameters-mandatory:443")
    assert old_tls_versions_disabled.rc != 0
    assert "CONNECTED" in old_tls_versions_disabled.stdout

    cipher = host.run("echo 'Q' | openssl s_client -cipher ECDHE-RSA-AES128-SHA256 -connect parameters-mandatory:443")
    assert cipher.rc == 0
    assert "ECDHE-RSA-AES128-SHA256" in cipher.stdout

    cipher = host.run("echo 'Q' | openssl s_client -cipher ECDHE-RSA-AES128-SHA -connect parameters-mandatory:443")
    assert cipher.rc != 0
    assert "ECDHE-RSA-AES128-SHA" not in cipher.stdout


def test_https_enforcement(host):
    """
    Tests if HTTPS is being enforced.
    """

    https_enforcement = host.run('curl -I http://parameters-mandatory/')

    assert https_enforcement.rc == 0
    assert 'HTTP/1.1 301 Moved Permanently' in https_enforcement.stdout
    assert 'Location: https://parameters-mandatory/' in https_enforcement.stdout

    https_enforcement = host.run('curl -I https://parameters-mandatory/')

    assert https_enforcement.rc == 0
    assert 'Strict-Transport-Security: max-age=31536000; includeSubDomains' in https_enforcement.stdout


def test_default_vhost_index_page(host):
    """
    Tests content of default vhost index page.
    """

    page = host.run('curl https://parameters-mandatory/')

    assert page.rc == 0
    assert "<title>Welcome</title>" in page.stdout
    assert "<h1>Welcome</h1>" in page.stdout
    assert "<p>You are attempting to access the web server using a wrong name or an IP address. Please check your URL.</p>" in page.stdout