46 lines
1.6 KiB
Python
46 lines
1.6 KiB
Python
"""
|
|
Onionr - Private P2P Communication
|
|
|
|
Ensure sockets don't get made to non localhost
|
|
"""
|
|
import ipaddress
|
|
|
|
import logger
|
|
from onionrexceptions import NetworkLeak
|
|
"""
|
|
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 <https://www.gnu.org/licenses/>.
|
|
"""
|
|
|
|
|
|
def detect_socket_leaks(socket_event):
|
|
"""is called by the big brother broker whenever
|
|
a socket connection happens.
|
|
raises exception & logs if not to loopback
|
|
"""
|
|
ip_address = socket_event[1][0]
|
|
|
|
# validate is valid ip address (no hostname, etc)
|
|
# raises NetworkLeak if not
|
|
try:
|
|
ipaddress.ip_address(ip_address)
|
|
except ValueError:
|
|
logger.warn(f'Conn made to {ip_address} outside of Tor/similar')
|
|
raise NetworkLeak('Conn to non local IP, this is a privacy concern!')
|
|
|
|
# Validate that the IP is localhost ipv4
|
|
|
|
if not ip_address.startswith('127'):
|
|
logger.warn(f'Conn made to {ip_address} outside of Tor/similar')
|
|
raise NetworkLeak('Conn to non local IP, this is a privacy concern!')
|