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# SPDX-License-Identifier: AGPL-3.0-or-later
# lint: pylint
"""A plugin to check if the ip address of the request is a TOR exit node if the
user searches for ``tor-check``. It fetches the tor exit node list from
https://check.torproject.org/exit-addresses and parses all the IPs into a list,
then checks if the user's IP address is in it.
Enable in ``settings.yml``:
.. code:: yaml
enabled_plugins:
..
- 'Tor check plugin'
"""
import re
from flask_babel import gettext
from httpx import HTTPError
from searx.network import get
default_on = False
name = gettext("Tor check plugin")
'''Translated name of the plugin'''
description = gettext(
"This plugin checks if the address of the request is a TOR exit node, and"
" informs the user if it is, like check.torproject.org but from searxng."
)
'''Translated description of the plugin.'''
preference_section = 'query'
'''The preference section where the plugin is shown.'''
query_keywords = ['tor-check']
'''Query keywords shown in the preferences.'''
query_examples = ''
'''Query examples shown in the preferences.'''
# Regex for exit node addresses in the list.
reg = re.compile(r"(?<=ExitAddress )\S+")
def post_search(request, search):
if search.search_query.pageno > 1:
return True
if search.search_query.query.lower() == "tor-check":
# Request the list of tor exit nodes.
try:
resp = get("https://check.torproject.org/exit-addresses")
node_list = re.findall(reg, resp.text)
except HTTPError:
# No answer, return error
search.result_container.answers["tor"] = {
"answer": gettext(
"The TOR exit node list (https://check.torproject.org/exit-addresses) is unreachable."
)
}
return True
x_forwarded_for = request.headers.getlist("X-Forwarded-For")
if x_forwarded_for:
ip_address = x_forwarded_for[0]
else:
ip_address = request.remote_addr
if ip_address in node_list:
search.result_container.answers["tor"] = {
"answer": gettext(
"You are using TOR. Your IP address seems to be: {ip_address}.".format(ip_address=ip_address)
)
}
else:
search.result_container.answers["tor"] = {
"answer": gettext(
"You are not using TOR. Your IP address seems to be: {ip_address}.".format(ip_address=ip_address)
)
}
return True
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