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#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""
OnionShare | https://onionshare.org/
Copyright (C) 2014-2022 Micah Lee, et al. <micah@micahflee.com>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
"""
import os
import requests
class UpdateTorBridges:
"""
Update the built-in Tor Bridges in OnionShare's torrc templates.
"""
def __init__(self, root_path):
self.root_path = root_path
torrc_template_dir = os.path.join(
self.root_path, os.pardir, "cli/onionshare_cli/resources"
)
endpoint = "https://bridges.torproject.org/moat/circumvention/builtin"
r = requests.post(
endpoint,
headers={"Content-Type": "application/vnd.api+json"},
)
if r.status_code != 200:
print(
f"There was a problem fetching the latest built-in bridges: status_code={r.status_code}"
)
return False
result = r.json()
if "errors" in result:
print(
f"There was a problem fetching the latest built-in bridges: errors={result['errors']}"
)
return False
for bridge_type in ["meek", "obfs4", "snowflake"]:
if result[bridge_type]:
if bridge_type == "meek":
torrc_template_extension = "meek_lite_azure"
else:
torrc_template_extension = bridge_type
torrc_template = os.path.join(
self.root_path,
torrc_template_dir,
f"torrc_template-{torrc_template_extension}",
)
with open(torrc_template, "w") as f:
f.write(f"# Enable built-in {bridge_type} bridge\n")
bridges = result[bridge_type]
# Sorts the bridges numerically by IP, since they come back in
# random order from the API each time, and create noisy git diff.
bridges.sort(key=lambda s: s.split()[1])
for item in bridges:
if bridge_type == "meek":
# obfs4proxy expects the bridge type to be meek_lite, and the url/front params
# are missing in the Tor API response, so we have to add them in ourselves.
bridge = item.replace("meek", "meek_lite")
f.write(
f"Bridge {bridge} url=https://meek.azureedge.net/ front=ajax.aspnetcdn.com\n"
)
else:
f.write(f"Bridge {item}\n")
|
