def load_engine(engine_data):
if '_' in engine_data['name']:
logger.error('Engine name conains underscore: "{}"'.format(engine_data['name']))
sys.exit(1)
engine_module = engine_data['engine']
try:
engine = load_module(engine_module + '.py', engine_dir)
except:
logger.exception('Cannot load engine "{}"'.format(engine_module))
return None
for param_name in engine_data:
if param_name == 'engine':
continue
if param_name == 'categories':
if engine_data['categories'] == 'none':
engine.categories = []
else:
engine.categories = map(
str.strip, engine_data['categories'].split(','))
continue
setattr(engine, param_name, engine_data[param_name])
for arg_name, arg_value in engine_default_args.iteritems():
if not hasattr(engine, arg_name):
setattr(engine, arg_name, arg_value)
# checking required variables
for engine_attr in dir(engine):
if engine_attr.startswith('_'):
continue
if getattr(engine, engine_attr) is None:
logger.error('Missing engine config attribute: "{0}.{1}"'
.format(engine.name, engine_attr))
sys.exit(1)
engine.stats = {
'result_count': 0,
'search_count': 0,
'page_load_time': 0,
'page_load_count': 0,
'engine_time': 0,
'engine_time_count': 0,
'score_count': 0,
'errors': 0
}
for category_name in engine.categories:
categories.setdefault(category_name, []).append(engine)
if engine.shortcut in engine_shortcuts:
logger.error('Engine config error: ambigious shortcut: {0}'.format(engine.shortcut))
sys.exit(1)
engine_shortcuts[engine.shortcut] = engine.name
return engine
def load_engine(engine_data):
"""Load engine from ``engine_data``.
:param dict engine_data: Attributes from YAML ``settings:engines/<engine>``
:return: initialized namespace of the ``<engine>``.
1. create a namespace and load module of the ``<engine>``
2. update namespace with the defaults from :py:obj:`ENGINE_DEFAULT_ARGS`
3. update namespace with values from ``engine_data``
If engine *is active*, return namespace of the engine, otherwise return
``None``.
This function also returns ``None`` if initialization of the namespace fails
for one of the following reasons:
- engine name contains underscore
- engine name is not lowercase
- required attribute is not set :py:func:`is_missing_required_attributes`
"""
engine_name = engine_data['name']
if '_' in engine_name:
logger.error(
'Engine name contains underscore: "{}"'.format(engine_name))
return None
if engine_name.lower() != engine_name:
logger.warn(
'Engine name is not lowercase: "{}", converting to lowercase'.
format(engine_name))
engine_name = engine_name.lower()
engine_data['name'] = engine_name
# load_module
engine_module = engine_data['engine']
try:
engine = load_module(engine_module + '.py', ENGINE_DIR)
except (SyntaxError, KeyboardInterrupt, SystemExit, SystemError,
ImportError, RuntimeError):
logger.exception(
'Fatal exception in engine "{}"'.format(engine_module))
sys.exit(1)
except BaseException:
logger.exception('Cannot load engine "{}"'.format(engine_module))
return None
update_engine_attributes(engine, engine_data)
set_language_attributes(engine)
update_attributes_for_tor(engine)
if not is_engine_active(engine):
return None
if is_missing_required_attributes(engine):
return None
return engine
def load_engine(engine_data):
if '_' in engine_data['name']:
logger.error('Engine name conains underscore: "{}"'.format(
engine_data['name']))
sys.exit(1)
engine_module = engine_data['engine']
try:
engine = load_module(engine_module + '.py', engine_dir)
except:
logger.exception('Cannot load engine "{}"'.format(engine_module))
return None
for param_name in engine_data:
if param_name == 'engine':
continue
if param_name == 'categories':
if engine_data['categories'] == 'none':
engine.categories = []
else:
engine.categories = map(str.strip,
engine_data['categories'].split(','))
continue
setattr(engine, param_name, engine_data[param_name])
for arg_name, arg_value in engine_default_args.iteritems():
if not hasattr(engine, arg_name):
setattr(engine, arg_name, arg_value)
# checking required variables
for engine_attr in dir(engine):
if engine_attr.startswith('_'):
continue
if getattr(engine, engine_attr) is None:
logger.error('Missing engine config attribute: "{0}.{1}"'.format(
engine.name, engine_attr))
sys.exit(1)
engine.stats = {
'result_count': 0,
'search_count': 0,
'page_load_time': 0,
'score_count': 0,
'errors': 0
}
for category_name in engine.categories:
categories.setdefault(category_name, []).append(engine)
if engine.shortcut in engine_shortcuts:
logger.error('Engine config error: ambigious shortcut: {0}'.format(
engine.shortcut))
sys.exit(1)
engine_shortcuts[engine.shortcut] = engine.name
return engine
def load_answerers():
answerers = []
for filename in listdir(answerers_dir):
if not isdir(join(answerers_dir, filename)):
continue
module = load_module('answerer.py', join(answerers_dir, filename))
if not hasattr(module, 'keywords') or not isinstance(module.keywords, tuple) or not len(module.keywords):
exit(2)
answerers.append(module)
return answerers
def load_engine(engine_data):
engine_name = engine_data['name']
if '_' in engine_name:
logger.error(
'Engine name contains underscore: "{}"'.format(engine_name))
sys.exit(1)
if engine_name.lower() != engine_name:
logger.warn(
'Engine name is not lowercase: "{}", converting to lowercase'.
format(engine_name))
engine_name = engine_name.lower()
engine_data['name'] = engine_name
engine_module = engine_data['engine']
try:
engine = load_module(engine_module + '.py', engine_dir)
except (SyntaxError, KeyboardInterrupt, SystemExit, SystemError,
ImportError, RuntimeError):
logger.exception(
'Fatal exception in engine "{}"'.format(engine_module))
sys.exit(1)
except:
logger.exception('Cannot load engine "{}"'.format(engine_module))
return None
for param_name, param_value in engine_data.items():
if param_name == 'engine':
pass
elif param_name == 'categories':
if param_value == 'none':
engine.categories = []
else:
engine.categories = list(map(str.strip,
param_value.split(',')))
else:
setattr(engine, param_name, param_value)
for arg_name, arg_value in engine_default_args.items():
if not hasattr(engine, arg_name):
setattr(engine, arg_name, arg_value)
# checking required variables
for engine_attr in dir(engine):
if engine_attr.startswith('_'):
continue
if engine_attr == 'inactive' and getattr(engine, engine_attr) is True:
return None
if getattr(engine, engine_attr) is None:
logger.error('Missing engine config attribute: "{0}.{1}"'.format(
engine.name, engine_attr))
sys.exit(1)
# assign supported languages from json file
if engine_data['name'] in ENGINES_LANGUAGES:
setattr(engine, 'supported_languages',
ENGINES_LANGUAGES[engine_data['name']])
# find custom aliases for non standard language codes
if hasattr(engine, 'supported_languages'):
if hasattr(engine, 'language_aliases'):
language_aliases = getattr(engine, 'language_aliases')
else:
language_aliases = {}
for engine_lang in getattr(engine, 'supported_languages'):
iso_lang = match_language(engine_lang, babel_langs, fallback=None)
if iso_lang and iso_lang != engine_lang and not engine_lang.startswith(iso_lang) and \
iso_lang not in getattr(engine, 'supported_languages'):
language_aliases[iso_lang] = engine_lang
setattr(engine, 'language_aliases', language_aliases)
# language_support
setattr(engine, 'language_support',
len(getattr(engine, 'supported_languages', [])) > 0)
# assign language fetching method if auxiliary method exists
if hasattr(engine, '_fetch_supported_languages'):
headers = {
'User-Agent': gen_useragent(),
'Accept-Language':
'ja-JP,ja;q=0.8,en-US;q=0.5,en;q=0.3', # bing needs a non-English language
}
setattr(
engine, 'fetch_supported_languages',
lambda: engine._fetch_supported_languages(
get(engine.supported_languages_url, headers=headers)))
# tor related settings
if settings['outgoing'].get('using_tor_proxy'):
# use onion url if using tor.
if hasattr(engine, 'onion_url'):
engine.search_url = engine.onion_url + getattr(
engine, 'search_path', '')
elif 'onions' in engine.categories:
# exclude onion engines if not using tor.
return None
engine.timeout += settings['outgoing'].get('extra_proxy_timeout', 0)
for category_name in engine.categories:
categories.setdefault(category_name, []).append(engine)
if engine.shortcut in engine_shortcuts:
logger.error('Engine config error: ambigious shortcut: {0}'.format(
engine.shortcut))
sys.exit(1)
engine_shortcuts[engine.shortcut] = engine.name
return engine
def load_engine(engine_data):
engine_name = engine_data['name']
if '_' in engine_name:
logger.error(
'Engine name contains underscore: "{}"'.format(engine_name))
sys.exit(1)
if engine_name.lower() != engine_name:
logger.warn(
'Engine name is not lowercase: "{}", converting to lowercase'.
format(engine_name))
engine_name = engine_name.lower()
engine_data['name'] = engine_name
engine_module = engine_data['engine']
try:
engine = load_module(engine_module + '.py', engine_dir)
except (SyntaxError, KeyboardInterrupt, SystemExit, SystemError,
ImportError, RuntimeError) as e:
logger.exception(
'Fatal exception in engine "{}"'.format(engine_module))
sys.exit(1)
except:
logger.exception('Cannot load engine "{}"'.format(engine_module))
return None
for param_name in engine_data:
if param_name == 'engine':
continue
if param_name == 'categories':
if engine_data['categories'] == 'none':
engine.categories = []
else:
engine.categories = list(
map(str.strip, engine_data['categories'].split(',')))
continue
setattr(engine, param_name, engine_data[param_name])
for arg_name, arg_value in engine_default_args.items():
if not hasattr(engine, arg_name):
setattr(engine, arg_name, arg_value)
# checking required variables
for engine_attr in dir(engine):
if engine_attr.startswith('_'):
continue
if engine_attr == 'inactive' and getattr(engine, engine_attr) is True:
return None
if getattr(engine, engine_attr) is None:
logger.error('Missing engine config attribute: "{0}.{1}"'.format(
engine.name, engine_attr))
sys.exit(1)
# assign supported languages from json file
if engine_data['name'] in languages:
setattr(engine, 'supported_languages', languages[engine_data['name']])
# find custom aliases for non standard language codes
if hasattr(engine, 'supported_languages'):
if hasattr(engine, 'language_aliases'):
language_aliases = getattr(engine, 'language_aliases')
else:
language_aliases = {}
for engine_lang in getattr(engine, 'supported_languages'):
iso_lang = match_language(engine_lang, babel_langs, fallback=None)
if iso_lang and iso_lang != engine_lang and not engine_lang.startswith(iso_lang) and \
iso_lang not in getattr(engine, 'supported_languages'):
language_aliases[iso_lang] = engine_lang
setattr(engine, 'language_aliases', language_aliases)
# assign language fetching method if auxiliary method exists
if hasattr(engine, '_fetch_supported_languages'):
setattr(
engine, 'fetch_supported_languages',
lambda: engine._fetch_supported_languages(
get(engine.supported_languages_url)))
engine.stats = {
'result_count': 0,
'search_count': 0,
'engine_time': 0,
'engine_time_count': 0,
'score_count': 0,
'errors': 0
}
if not engine.offline:
engine.stats['page_load_time'] = 0
engine.stats['page_load_count'] = 0
for category_name in engine.categories:
categories.setdefault(category_name, []).append(engine)
if engine.shortcut in engine_shortcuts:
logger.error('Engine config error: ambigious shortcut: {0}'.format(
engine.shortcut))
sys.exit(1)
engine_shortcuts[engine.shortcut] = engine.name
return engine
def load_engine(engine_data):
if '_' in engine_data['name']:
logger.error('Engine name conains underscore: "{}"'.format(engine_data['name']))
sys.exit(1)
engine_module = engine_data['engine']
try:
engine = load_module(engine_module + '.py', engine_dir)
except:
logger.exception('Cannot load engine "{}"'.format(engine_module))
return None
for param_name in engine_data:
if param_name == 'engine':
continue
if param_name == 'categories':
if engine_data['categories'] == 'none':
engine.categories = []
else:
engine.categories = list(map(str.strip, engine_data['categories'].split(',')))
continue
setattr(engine, param_name, engine_data[param_name])
for arg_name, arg_value in engine_default_args.items():
if not hasattr(engine, arg_name):
setattr(engine, arg_name, arg_value)
# checking required variables
for engine_attr in dir(engine):
if engine_attr.startswith('_'):
continue
if engine_attr == 'inactive' and getattr(engine, engine_attr) is True:
return None
if getattr(engine, engine_attr) is None:
logger.error('Missing engine config attribute: "{0}.{1}"'
.format(engine.name, engine_attr))
sys.exit(1)
# assign supported languages from json file
if engine_data['name'] in languages:
setattr(engine, 'supported_languages', languages[engine_data['name']])
# assign language fetching method if auxiliary method exists
if hasattr(engine, '_fetch_supported_languages'):
setattr(engine, 'fetch_supported_languages',
lambda: engine._fetch_supported_languages(get(engine.supported_languages_url)))
engine.stats = {
'result_count': 0,
'search_count': 0,
'page_load_time': 0,
'page_load_count': 0,
'engine_time': 0,
'engine_time_count': 0,
'score_count': 0,
'errors': 0
}
for category_name in engine.categories:
categories.setdefault(category_name, []).append(engine)
if engine.shortcut in engine_shortcuts:
logger.error('Engine config error: ambigious shortcut: {0}'.format(engine.shortcut))
sys.exit(1)
engine_shortcuts[engine.shortcut] = engine.name
return engine
