onionshare/onionshare/onionshare.py

267 lines
9.3 KiB
Python

# -*- coding: utf-8 -*-
"""
OnionShare | https://onionshare.org/
Copyright (C) 2014 Micah Lee <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, sys, subprocess, time, argparse, inspect, shutil, socket, threading, urllib2
import socks
from stem.control import Controller
from stem import SocketError
import strings, helpers, web
class NoTor(Exception): pass
class TailsError(Exception): pass
class OnionShare(object):
def __init__(self, debug=False, local_only=False, stay_open=False):
self.port = None
# debug mode
if debug:
web.debug_mode()
# do not use tor -- for development
self.local_only = local_only
# automatically close when download is finished
self.stay_open = stay_open
# files and dirs to delete on shutdown
self.cleanup_filenames = []
def cleanup(self):
for filename in self.cleanup_filenames:
if os.path.isfile(filename):
os.remove(filename)
elif os.path.isdir(filename):
shutil.rmtree(filename)
self.cleanup_filenames = []
def choose_port(self):
# let the OS choose a port
tmpsock = socket.socket()
tmpsock.bind(("127.0.0.1", 0))
self.port = tmpsock.getsockname()[1]
tmpsock.close()
def start_hidden_service(self, gui=False, tails_root=False):
if not self.port:
self.choose_port()
if helpers.get_platform() == 'Tails' and not tails_root:
# in Tails, start the hidden service in a root process
if gui:
args = ['/usr/bin/gksudo', '-D', 'OnionShare', '--', '/usr/bin/onionshare']
else:
args = ['/usr/bin/sudo', '--', '/usr/bin/onionshare']
p = subprocess.Popen(args+[str(self.port)], stderr=subprocess.PIPE, stdout=subprocess.PIPE)
stdout = p.stdout.read(22) # .onion URLs are 22 chars long
if stdout:
self.onion_host = stdout
else:
if p.poll() == -1:
raise TailsError(o.stderr.read())
else:
raise TailsError(strings._("error_tails_unknown_root"))
else:
if self.local_only:
self.onion_host = '127.0.0.1:{0}'.format(self.port)
else:
# come up with a hidden service directory name
hidserv_dir = '{0}/onionshare_{1}'.format(helpers.get_tmp_dir(), helpers.random_string(8))
self.cleanup_filenames.append(hidserv_dir)
# connect to the tor controlport
controller = False
tor_control_ports = [9051, 9151]
for tor_control_port in tor_control_ports:
try:
controller = Controller.from_port(port=tor_control_port)
break
except SocketError:
pass
if not controller:
raise NoTor(strings._("cant_connect_ctrlport").format(tor_control_ports))
controller.authenticate()
# set up hidden service
controller.set_options([
('HiddenServiceDir', hidserv_dir),
('HiddenServicePort', '80 127.0.0.1:{0}'.format(self.port))
])
# figure out the .onion hostname
hostname_file = '{0}/hostname'.format(hidserv_dir)
self.onion_host = open(hostname_file, 'r').read().strip()
def wait_for_hs(self):
if self.local_only:
return True
print strings._('wait_for_hs')
ready = False
while not ready:
try:
sys.stdout.write('{0} '.format(strings._('wait_for_hs_trying')))
sys.stdout.flush()
if helpers.get_platform() == 'Tails':
# in Tails everything is proxies over Tor already
# so no need to set the socks5 proxy
urllib2.urlopen('http://{0}'.format(self.onion_host))
else:
tor_exists = False
tor_socks_ports = [9050, 9150]
for tor_socks_port in tor_socks_ports:
try:
s = socks.socksocket()
s.setproxy(socks.PROXY_TYPE_SOCKS5, '127.0.0.1', tor_socks_port)
s.connect((self.onion_host, 80))
s.close()
tor_exists = True
break
except socks.ProxyConnectionError:
pass
if not tor_exists:
raise NoTor(strings._("cant_connect_socksport").format(tor_socks_ports))
ready = True
sys.stdout.write('{0}\n'.format(strings._('wait_for_hs_yup')))
except socks.SOCKS5Error: # non-Tails error
sys.stdout.write('{0}\n'.format(strings._('wait_for_hs_nope')))
sys.stdout.flush()
except urllib2.HTTPError: # Tails error
sys.stdout.write('{0}\n'.format(strings._('wait_for_hs_nope')))
sys.stdout.flush()
except KeyboardInterrupt:
return False
return True
def tails_root():
# if running in Tails and as root, do only the things that require root
if helpers.get_platform() == 'Tails' and helpers.is_root():
parser = argparse.ArgumentParser()
parser.add_argument('port', nargs=1, help=strings._("help_tails_port"))
args = parser.parse_args()
try:
port = int(args.port[0])
except ValueError:
sys.stderr.write('{0}\n'.format(strings._("error_tails_invalid_port")))
sys.exit(-1)
# open hole in firewall
subprocess.call(['/sbin/iptables', '-I', 'OUTPUT', '-o', 'lo', '-p', 'tcp', '--dport', str(port), '-j', 'ACCEPT'])
# start hidden service
app = OnionShare()
app.choose_port()
app.port = port
app.start_hidden_service(False, True)
sys.stdout.write(app.onion_host)
sys.stdout.flush()
# close hole in firewall on shutdown
import signal
def handler(signum = None, frame = None):
subprocess.call(['/sbin/iptables', '-D', 'OUTPUT', '-o', 'lo', '-p', 'tcp', '--dport', str(port), '-j', 'ACCEPT'])
sys.exit()
for sig in [signal.SIGTERM, signal.SIGINT, signal.SIGHUP, signal.SIGQUIT]:
signal.signal(sig, handler)
# stay open until killed
while True:
time.sleep(1)
def main():
strings.load_strings()
tails_root()
# parse arguments
parser = argparse.ArgumentParser()
parser.add_argument('--local-only', action='store_true', dest='local_only', help=strings._("help_local_only"))
parser.add_argument('--stay-open', action='store_true', dest='stay_open', help=strings._("help_stay_open"))
parser.add_argument('--debug', action='store_true', dest='debug', help=strings._("help_debug"))
parser.add_argument('filename', metavar='filename', nargs='+', help=strings._('help_filename'))
args = parser.parse_args()
filenames = args.filename
for i in range(len(filenames)):
filenames[i] = os.path.abspath(filenames[i])
local_only = bool(args.local_only)
debug = bool(args.debug)
stay_open = bool(args.stay_open)
# validation
valid = True
for filename in filenames:
if not os.path.exists(filename):
print(strings._("not_a_file").format(filename))
valid = False
if not valid:
sys.exit()
# start the onionshare app
try:
app = OnionShare(debug, local_only, stay_open)
app.choose_port()
print strings._("connecting_ctrlport").format(app.port)
app.start_hidden_service()
except NoTor as e:
sys.exit(e.args[0])
except TailsError as e:
sys.exit(e.args[0])
# prepare files to share
print strings._("preparing_files")
web.set_file_info(filenames)
app.cleanup_filenames.append(web.zip_filename)
# start onionshare service in new thread
t = threading.Thread(target=web.start, args=(app.port, app.stay_open))
t.daemon = True
t.start()
# wait for hs
ready = app.wait_for_hs()
if not ready:
sys.exit()
print strings._("give_this_url")
print 'http://{0}/{1}'.format(app.onion_host, web.slug)
print ''
print strings._("ctrlc_to_stop")
# wait for app to close
try:
t.join()
except KeyboardInterrupt:
web.stop(app.port)
finally:
# shutdown
app.cleanup()
if __name__ == '__main__':
main()