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import collections.abc
import yaml
from searx.exceptions import SearxSettingsException
from os import environ
from os.path import dirname, join, abspath, isfile
searx_dir = abspath(dirname(__file__))
def check_settings_yml(file_name):
if isfile(file_name):
return file_name
else:
return None
def load_yaml(file_name):
try:
with open(file_name, 'r', encoding='utf-8') as settings_yaml:
settings = yaml.safe_load(settings_yaml)
if not isinstance(settings, dict) or len(settings) == 0:
raise SearxSettingsException('Empty file', file_name)
return settings
except IOError as e:
raise SearxSettingsException(e, file_name)
except yaml.YAMLError as e:
raise SearxSettingsException(e, file_name)
def get_default_settings_path():
return check_settings_yml(join(searx_dir, 'settings.yml'))
def get_user_settings_path():
# find location of settings.yml
if 'SEARX_SETTINGS_PATH' in environ:
# if possible set path to settings using the
# enviroment variable SEARX_SETTINGS_PATH
return check_settings_yml(environ['SEARX_SETTINGS_PATH'])
else:
# if not, get it from searx code base or last solution from /etc/searx
return check_settings_yml('/etc/searx/settings.yml')
def update_dict(d, u):
for k, v in u.items():
if isinstance(v, collections.abc.Mapping):
d[k] = update_dict(d.get(k, {}), v)
else:
d[k] = v
return d
def update_settings(default_settings, user_settings):
for k, v in user_settings.items():
if k == 'use_default_settings':
continue
elif k == 'engines':
default_engines = default_settings[k]
default_engines_dict = dict((definition['name'], definition) for definition in default_engines)
default_settings[k] = [update_dict(default_engines_dict[definition['name']], definition)
for definition in v]
else:
update_dict(default_settings[k], v)
return default_settings
def load_settings(load_user_setttings=True):
default_settings_path = get_default_settings_path()
user_settings_path = get_user_settings_path()
if user_settings_path is None or not load_user_setttings:
# no user settings
return (load_yaml(default_settings_path),
'load the default settings from {}'.format(default_settings_path))
# user settings
user_settings = load_yaml(user_settings_path)
if user_settings.get('use_default_settings'):
# the user settings are merged with the default configuration
default_settings = load_yaml(default_settings_path)
update_settings(default_settings, user_settings)
return (default_settings,
'merge the default settings ( {} ) and the user setttings ( {} )'
.format(default_settings_path, user_settings_path))
# the user settings, fully replace the default configuration
return (user_settings,
'load the user settings from {}'.format(user_settings_path))
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