# (The MIT License)
#
# Copyright (c) 2013-2017 Kura
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the 'Software'), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.

# pylama:skip=1

import asyncio
import os
import time
from io import BytesIO
from unittest import mock

import pytest

from blackhole import protocols
from blackhole.config import Config
from blackhole.worker import Worker

from ._utils import (Args, cleandir, create_config, create_file, reset)


try:
    import asyncio
    import uvloop
    asyncio.set_event_loop_policy(uvloop.EventLoopPolicy())
except ImportError:
    pass


@pytest.mark.usefixtures('reset', 'cleandir')
@pytest.mark.asyncio
async def test_start_stop():
    worker = Worker(1, [])
    assert worker._started is True
    await asyncio.sleep(10)
    worker.stop()
    assert worker._started is False


@pytest.mark.usefixtures('reset', 'cleandir')
def test_child_start_setgid_fails_invalid_group():
    cfile = create_config(('user=fgqewgreghrehgerhehw',
                           'group=fgqewgreghrehgerhehw'))
    Config(cfile).load()
    with mock.patch('os.pipe', return_value=('', '')), \
        mock.patch('os.fork', return_value=False), \
        mock.patch('os.close'), \
        mock.patch('os.setgid', side_effect=KeyError), \
            pytest.raises(SystemExit) as err:
        Worker([], [])
    assert str(err.value) == '64'


@pytest.mark.usefixtures('reset', 'cleandir')
def test_child_start_setgid_fails_permissions():
    cfile = create_config(('user=fgqewgreghrehgerhehw',
                           'group=fgqewgreghrehgerhehw'))
    Config(cfile).load()
    with mock.patch('os.pipe', return_value=('', '')), \
        mock.patch('os.fork', return_value=False), \
        mock.patch('os.close'), \
        mock.patch('os.setgid', side_effect=PermissionError), \
            pytest.raises(SystemExit) as err:
        Worker([], [])
    assert str(err.value) == '64'


@pytest.mark.usefixtures('reset', 'cleandir')
def test_child_start_setuid_fails_invalid_user():
    cfile = create_config(('user=fgqewgreghrehgerhehw',
                           'group=fgqewgreghrehgerhehw'))
    Config(cfile).load()
    with mock.patch('os.pipe', return_value=('', '')), \
        mock.patch('os.fork', return_value=False), \
        mock.patch('os.close'), \
        mock.patch('os.setuid', side_effect=KeyError), \
            pytest.raises(SystemExit) as err:
        Worker([], [])
    assert str(err.value) == '64'


@pytest.mark.usefixtures('reset', 'cleandir')
def test_child_start_setuid_fails_permissions():
    cfile = create_config(('user=fgqewgreghrehgerhehw',
                           'group=fgqewgreghrehgerhehw'))
    Config(cfile).load()
    with mock.patch('os.pipe', return_value=('', '')), \
        mock.patch('os.fork', return_value=False), \
        mock.patch('os.close'), \
        mock.patch('os.setuid', side_effect=PermissionError), \
            pytest.raises(SystemExit) as err:
        Worker([], [])
    assert str(err.value) == '64'
