ldap_lib_installed = False

try:

    import ldap

    ldap.API_VERSION

    ldap_lib_installed = True

except ImportError:

    # means that python-ldap is not installed

    pass

try:

    import pam

    pam.PAM_TEXT_INFO

    pam_lib_installed = True

except ImportError:

    pam_lib_installed = False

class NullHandler(logging.Handler):

    def emit(self, record):

        pass

class TestController(object):

    """Pytest-style test controller"""

    # Note: pytest base classes cannot have an __init__ method

    @pytest.fixture(autouse=True)

    def app_fixture(self):

        self.wsgiapp = pylons.test.pylonsapp

        self.init_stack(self.wsgiapp.config)

        self.app = TestApp(self.wsgiapp)

        self.maxDiff = None

        self.index_location = config['app_conf']['index_dir']

        return self.app

    def init_stack(self, config=None):

        if not config:

            config = pylons.test.pylonsapp.config

        url._push_object(URLGenerator(config['routes.map'], environ))

        pylons.app_globals._push_object(config['pylons.app_globals'])

        pylons.config._push_object(config)

        pylons.tmpl_context._push_object(ContextObj())

        # Initialize a translator for tests that utilize i18n

        translator = _get_translator(pylons.config.get('lang'))

        pylons.translator._push_object(translator)

        h = NullHandler()

        logging.getLogger("kallithea").addHandler(h)

    def remove_all_notifications(self):

        Session().commit()

    def log_user(self, username=TEST_USER_ADMIN_LOGIN,

                 password=TEST_USER_ADMIN_PASS):

        self._logged_username = username

        response = self.app.post(url(controller='login', action='index'),

                                 {'username': username,

                                  'password': password})

        if 'Invalid username or password' in response.body:

            pytest.fail('could not login using %s %s' % (username, password))

        assert response.status == '302 Found'

        self.assert_authenticated_user(response, username)

        response = response.follow()

        return response.session['authuser']

    def _get_logged_user(self):

        return User.get_by_username(self._logged_username)

    def assert_authenticated_user(self, response, expected_username):

        cookie = response.session.get('authuser')

        user = cookie and cookie.get('user_id')

        user = user and User.get(user)

        user = user and user.username

        assert user == expected_username

    def authentication_token(self):

        return self.app.get(url('authentication_token')).body

    def checkSessionFlash(self, response, msg=None, skip=0, _matcher=lambda msg, m: msg in m):

        if 'flash' not in response.session:

            pytest.fail(safe_str(u'msg `%s` not found - session has no flash:\n%s' % (msg, response)))

        try:

            level, m = response.session['flash'][-1 - skip]

            if _matcher(msg, m):

                return

        except IndexError:

            pass

        pytest.fail(safe_str(u'msg `%s` not found in session flash (skipping %s): %s' %

                           (msg, skip,

                            ', '.join('`%s`' % m for level, m in response.session['flash']))))

    def checkSessionFlashRegex(self, response, regex, skip=0):

        self.checkSessionFlash(response, regex, skip=skip, _matcher=re.search)