import os
from pathlib import Path

import pytest
from unit.applications.proto import TestApplicationProto
from unit.option import option


class TestStaticChroot(TestApplicationProto):
    prerequisites = {'features': ['chroot']}

    @pytest.fixture(autouse=True)
    def setup_method_fixture(self, temp_dir):
        os.makedirs(f'{temp_dir}/assets/dir')
        Path(f'{temp_dir}/assets/index.html').write_text('0123456789')
        Path(f'{temp_dir}/assets/dir/file').write_text('blah')

        self.test_path = f'/{os.path.relpath(Path(__file__))}'

        self._load_conf(
            {
                "listeners": {"*:7080": {"pass": "routes"}},
                "routes": [{"action": {"share": f'{temp_dir}/assets$uri'}}],
            }
        )

    def update_action(self, chroot, share=f'{option.temp_dir}/assets$uri'):
        return self.conf(
            {'chroot': chroot, 'share': share},
            'routes/0/action',
        )

    def get_custom(self, uri, host):
        return self.get(url=uri, headers={'Host': host, 'Connection': 'close'})[
            'status'
        ]

    def test_static_chroot(self, temp_dir):
        assert self.get(url='/dir/file')['status'] == 200, 'default chroot'
        assert self.get(url='/index.html')['status'] == 200, 'default chroot 2'

        assert 'success' in self.update_action(f'{temp_dir}/assets/dir')

        assert self.get(url='/dir/file')['status'] == 200, 'chroot'
        assert self.get(url='/index.html')['status'] == 403, 'chroot 403 2'
        assert self.get(url='/file')['status'] == 403, 'chroot 403'

    def test_share_chroot_array(self, temp_dir):
        assert 'success' in self.update_action(
            f'{temp_dir}/assets/dir', ["/blah", f'{temp_dir}/assets$uri']
        )
        assert self.get(url='/dir/file')['status'] == 200, 'share array'

        assert 'success' in self.update_action(
            f'{temp_dir}/assets/$host',
            ['/blah', f'{temp_dir}/assets$uri'],
        )
        assert self.get_custom('/dir/file', 'dir') == 200, 'array variable'

        assert 'success' in self.update_action(
            f'{temp_dir}/assets/dir', ['/blah', '/blah2']
        )
        assert self.get()['status'] != 200, 'share array bad'

    def test_static_chroot_permission(self, is_su, temp_dir):
        if is_su:
            pytest.skip("does't work under root")

        os.chmod(f'{temp_dir}/assets/dir', 0o100)

        assert 'success' in self.update_action(
            f'{temp_dir}/assets/dir'
        ), 'configure chroot'

        assert self.get(url='/dir/file')['status'] == 200, 'chroot'

    def test_static_chroot_empty(self, temp_dir):
        assert 'success' in self.update_action('')
        assert self.get(url='/dir/file')['status'] == 200, 'empty absolute'

        assert 'success' in self.update_action("", ".$uri")
        assert self.get(url=self.test_path)['status'] == 200, 'empty relative'

    def test_static_chroot_relative(self, is_su, temp_dir):
        if is_su:
            pytest.skip("Does't work under root.")

        assert 'success' in self.update_action('.')
        assert self.get(url='/dir/file')['status'] == 403, 'relative chroot'

        assert 'success' in self.conf({"share": ".$uri"}, 'routes/0/action')
        assert self.get(url=self.test_path)['status'] == 200, 'relative share'

        assert 'success' in self.update_action(".", ".$uri")
        assert self.get(url=self.test_path)['status'] == 200, 'relative'

    def test_static_chroot_variables(self, temp_dir):
        assert 'success' in self.update_action(f'{temp_dir}/assets/$host')
        assert self.get_custom('/dir/file', 'dir') == 200

        assert 'success' in self.update_action(f'{temp_dir}/assets/${{host}}')
        assert self.get_custom('/dir/file', 'dir') == 200

    def test_static_chroot_variables_buildin_start(self, temp_dir):
        assert 'success' in self.update_action(
            '$uri/assets/dir',
            f'{temp_dir}/assets/dir/$host',
        )
        assert self.get_custom(temp_dir, 'file') == 200

    def test_static_chroot_variables_buildin_mid(self, temp_dir):
        assert 'success' in self.update_action(f'{temp_dir}/$host/dir')
        assert self.get_custom('/dir/file', 'assets') == 200

    def test_static_chroot_variables_buildin_end(self, temp_dir):
        assert 'success' in self.update_action(f'{temp_dir}/assets/$host')
        assert self.get_custom('/dir/file', 'dir') == 200

    def test_static_chroot_slash(self, temp_dir):
        assert 'success' in self.update_action(f'{temp_dir}/assets/dir/')
        assert self.get(url='/dir/file')['status'] == 200, 'slash end'
        assert self.get(url='/dirxfile')['status'] == 403, 'slash end bad'

        assert 'success' in self.update_action(f'{temp_dir}/assets/dir')
        assert self.get(url='/dir/file')['status'] == 200, 'no slash end'

        assert 'success' in self.update_action(f'{temp_dir}/assets/dir/')
        assert self.get(url='/dir/file')['status'] == 200, 'slash end 2'
        assert self.get(url='/dirxfile')['status'] == 403, 'slash end 2 bad'

        assert 'success' in self.update_action(
            f'{temp_dir}//assets////dir///', f'{temp_dir}///assets/////$uri'
        )
        assert self.get(url='/dir/file')['status'] == 200, 'multiple slashes'

    def test_static_chroot_invalid(self, temp_dir):
        assert 'error' in self.conf(
            {"share": temp_dir, "chroot": True},
            'routes/0/action',
        ), 'configure chroot error'
        assert 'error' in self.conf(
            {"share": temp_dir, "symlinks": "True"},
            'routes/0/action',
        ), 'configure symlink error'
        assert 'error' in self.conf(
            {"share": temp_dir, "mount": "True"},
            'routes/0/action',
        ), 'configure mount error'

        assert 'error' in self.update_action(f'{temp_dir}/assets/d$r$uri')
        assert 'error' in self.update_action(f'{temp_dir}/assets/$$uri')