# Copyright 2019 Red Hat, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.

import pytest

testinfra_hosts = ['adns-letsencrypt.opendev.org',
                   'bridge.openstack.org',
                   'letsencrypt01.opendev.org',
                   'letsencrypt02.opendev.org']


def test_acme_zone(host):
    if host.backend.get_hostname() != 'adns-letsencrypt.opendev.org':
        pytest.skip()
    acme_opendev_zone = host.file('/var/lib/bind/zones/acme.opendev.org/zone.db')
    assert acme_opendev_zone.exists

    # On our test nodes, unbound is listening on 127.0.0.1:53; this
    # ensures the query hits bind
    query_addr = host.ansible("setup")["ansible_facts"]["ansible_default_ipv4"]["address"]
    cmd = host.run("dig -t txt acme.opendev.org @" + query_addr)
    count = 0
    for line in cmd.stdout.split('\n'):
        if line.startswith('acme.opendev.org.	60	IN	TXT'):
            count = count + 1
    if count != 6:
        # NOTE(ianw): I'm sure there's more pytest-y ways to save this
        # for debugging ...
        print(cmd.stdout)
    assert count == 6, "Did not see required number of TXT records!"

def test_certs_created(host):
    if host.backend.get_hostname() == 'letsencrypt01.opendev.org':
        domain_one = host.file(
            '/etc/letsencrypt-certs/'
            'letsencrypt01.opendev.org/letsencrypt01.opendev.org.key')
        assert domain_one.exists
        assert domain_one.user == "root"
        assert domain_one.group == "letsencrypt"
        assert domain_one.mode == 0o640

        cert_one = host.file(
            '/etc/letsencrypt-certs/'
            'letsencrypt01.opendev.org/letsencrypt01.opendev.org.cer')
        assert cert_one.exists
        assert cert_one.user == "root"
        assert cert_one.group == "letsencrypt"
        assert cert_one.mode == 0o640

        ca_one = host.file(
            '/etc/letsencrypt-certs/'
            'letsencrypt01.opendev.org/ca.cer')
        assert ca_one.exists
        assert ca_one.user == "root"
        assert ca_one.group == "letsencrypt"
        assert ca_one.mode == 0o640

        domain_two = host.file(
            '/etc/letsencrypt-certs/'
            'someotherservice.opendev.org/someotherservice.opendev.org.key')
        assert domain_two.exists
        assert domain_two.user == "root"
        assert domain_two.group == "letsencrypt"
        assert domain_two.mode == 0o640

        cert_two = host.file(
            '/etc/letsencrypt-certs/'
            'someotherservice.opendev.org/someotherservice.opendev.org.cer')
        assert cert_two.exists
        assert cert_two.user == "root"
        assert cert_two.group == "letsencrypt"
        assert cert_two.mode == 0o640

        ca_two = host.file(
            '/etc/letsencrypt-certs/'
            'someotherservice.opendev.org/ca.cer')
        assert ca_one.exists
        assert ca_one.user == "root"
        assert ca_one.group == "letsencrypt"
        assert ca_one.mode == 0o640

    elif host.backend.get_hostname() == 'letsencrypt02.opendev.org':
        domain_one = host.file(
            '/etc/letsencrypt-certs/'
            'letsencrypt02.opendev.org/letsencrypt02.opendev.org.key')
        assert domain_one.exists
        assert domain_one.user == "root"
        assert domain_one.group == "letsencrypt"
        assert domain_one.mode == 0o640

        cert_one = host.file(
            '/etc/letsencrypt-certs/'
            'letsencrypt02.opendev.org/letsencrypt02.opendev.org.cer')
        assert cert_one.exists
        assert cert_one.user == "root"
        assert cert_one.group == "letsencrypt"
        assert cert_one.mode == 0o640

        ca_one = host.file(
            '/etc/letsencrypt-certs/'
            'letsencrypt02.opendev.org/ca.cer')
        assert ca_one.exists
        assert ca_one.user == "root"
        assert ca_one.group == "letsencrypt"
        assert ca_one.mode == 0o640

    else:
        pytest.skip()

def test_updated_handler(host):
    if host.backend.get_hostname() == 'letsencrypt01.opendev.org':
        stamp_file = host.file('/tmp/letsencrypt01-main-service.stamp')
        assert stamp_file.exists
        stamp_file = host.file('/tmp/letsencrypt01-other-service.stamp')
        assert stamp_file.exists

    elif host.backend.get_hostname() == 'letsencrypt02.opendev.org':
        stamp_file = host.file('/tmp/letsencrypt02-main-service.stamp')
        assert stamp_file.exists

    else:
        pytest.skip()

def test_acme_sh_config(host):
    if not host.backend.get_hostname().startswith('letsencrypt0'):
        pytest.skip()

    config = host.file('/root/.acme.sh/account.conf')
    assert config.exists
    assert config.contains("^ACCOUNT_EMAIL='le-test@opendev.org'")

def test_certcheck_config(host, zuul_data):
    if host.backend.get_hostname() != 'bridge.openstack.org':
        pytest.skip()

    if zuul_data['extra']['zuul']['job'] != 'system-config-run-letsencrypt':
        pytest.skip()

    domainlist = host.file('/var/lib/certcheck/ssldomains')

    # TODO(ianw): figure out a flag or something from the
    # system-config-run-letsencrypt test so that we can assert this
    # file exists only in that case.
    if not domainlist.exists:
        pytest.skip()

    assert domainlist.exists
    assert domainlist.user == 'certcheck'
    # from variables
    assert domainlist.contains('^letsencrypt01.opendev.org 5000')
    # from extra list; may need to change if list is modified
    assert domainlist.contains('^wiki.openstack.org 443')