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# SPDX-License-Identifier: AGPL-3.0-or-later
# pylint: disable=missing-module-docstring, too-many-branches
import re
from urllib.parse import urlunparse, urlparse
from flask_babel import gettext
from searx import settings
from searx.plugins import logger
from searx.settings_loader import get_yaml_file
name = gettext('Hostnames plugin')
description = gettext('Rewrite hostnames, remove results or prioritize them based on the hostname')
default_on = False
preference_section = 'general'
plugin_id = 'hostnames'
logger = logger.getChild(plugin_id)
parsed = 'parsed_url'
_url_fields = ['iframe_src', 'audio_src']
def _load_regular_expressions(settings_key):
setting_value = settings.get(plugin_id, {}).get(settings_key)
if not setting_value:
return {}
# load external file with configuration
if isinstance(setting_value, str):
setting_value = get_yaml_file(setting_value)
if isinstance(setting_value, list):
return {re.compile(r) for r in setting_value}
if isinstance(setting_value, dict):
return {re.compile(p): r for (p, r) in setting_value.items()}
return {}
replacements = _load_regular_expressions('replace')
removables = _load_regular_expressions('remove')
high_priority = _load_regular_expressions('high_priority')
low_priority = _load_regular_expressions('low_priority')
def _matches_parsed_url(result, pattern):
return parsed in result and pattern.search(result[parsed].netloc)
def on_result(_request, _search, result):
for pattern, replacement in replacements.items():
if _matches_parsed_url(result, pattern):
logger.debug(result['url'])
result[parsed] = result[parsed]._replace(netloc=pattern.sub(replacement, result[parsed].netloc))
result['url'] = urlunparse(result[parsed])
logger.debug(result['url'])
for url_field in _url_fields:
if not result.get(url_field):
continue
url_src = urlparse(result[url_field])
if pattern.search(url_src.netloc):
url_src = url_src._replace(netloc=pattern.sub(replacement, url_src.netloc))
result[url_field] = urlunparse(url_src)
for pattern in removables:
if _matches_parsed_url(result, pattern):
return False
for url_field in _url_fields:
if not result.get(url_field):
continue
url_src = urlparse(result[url_field])
if pattern.search(url_src.netloc):
del result[url_field]
for pattern in low_priority:
if _matches_parsed_url(result, pattern):
result['priority'] = 'low'
for pattern in high_priority:
if _matches_parsed_url(result, pattern):
result['priority'] = 'high'
return True
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