onionshare/cli/onionshare_cli/__init__.py
2021-04-29 17:13:05 -07:00

545 lines
19 KiB
Python

# -*- coding: utf-8 -*-
"""
OnionShare | https://onionshare.org/
Copyright (C) 2014-2021 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 sys
import time
import argparse
import threading
from datetime import datetime
from datetime import timedelta
from .common import Common, CannotFindTor
from .web import Web
from .onion import (
TorErrorProtocolError,
TorTooOldEphemeral,
TorTooOldStealth,
Onion,
)
from .onionshare import OnionShare
from .mode_settings import ModeSettings
def build_url(mode_settings, app, web):
# Build the URL
if mode_settings.get("general", "public"):
return f"http://{app.onion_host}"
else:
return f"http://onionshare:{web.password}@{app.onion_host}"
def main(cwd=None):
"""
The main() function implements all of the logic that the command-line version of
onionshare uses.
"""
common = Common()
common.display_banner()
# OnionShare CLI in OSX needs to change current working directory (#132)
if common.platform == "Darwin":
if cwd:
os.chdir(cwd)
# Parse arguments
parser = argparse.ArgumentParser(
formatter_class=lambda prog: argparse.HelpFormatter(prog, max_help_position=28)
)
# Select modes
parser.add_argument(
"--receive", action="store_true", dest="receive", help="Receive files"
)
parser.add_argument(
"--website", action="store_true", dest="website", help="Publish website"
)
parser.add_argument(
"--chat", action="store_true", dest="chat", help="Start chat server"
)
# Tor connection-related args
parser.add_argument(
"--local-only",
action="store_true",
dest="local_only",
default=False,
help="Don't use Tor (only for development)",
)
parser.add_argument(
"--connect-timeout",
metavar="SECONDS",
dest="connect_timeout",
default=120,
help="Give up connecting to Tor after a given amount of seconds (default: 120)",
)
parser.add_argument(
"--config",
metavar="FILENAME",
default=None,
help="Filename of custom global settings",
)
# Persistent file
parser.add_argument(
"--persistent",
metavar="FILENAME",
default=None,
help="Filename of persistent session",
)
# General args
parser.add_argument(
"--title",
metavar="TITLE",
default=None,
help="Set a title",
)
parser.add_argument(
"--public",
action="store_true",
dest="public",
default=False,
help="Don't use a password",
)
parser.add_argument(
"--auto-start-timer",
metavar="SECONDS",
dest="autostart_timer",
default=0,
help="Start onion service at scheduled time (N seconds from now)",
)
parser.add_argument(
"--auto-stop-timer",
metavar="SECONDS",
dest="autostop_timer",
default=0,
help="Stop onion service at schedule time (N seconds from now)",
)
parser.add_argument(
"--legacy",
action="store_true",
dest="legacy",
default=False,
help="Use legacy address (v2 onion service, not recommended)",
)
parser.add_argument(
"--client-auth",
action="store_true",
dest="client_auth",
default=False,
help="Use client authorization (requires --legacy)",
)
# Share args
parser.add_argument(
"--no-autostop-sharing",
action="store_true",
dest="no_autostop_sharing",
default=False,
help="Share files: Continue sharing after files have been sent (default is to stop sharing)",
)
# Receive args
parser.add_argument(
"--data-dir",
metavar="data_dir",
default=None,
help="Receive files: Save files received to this directory",
)
parser.add_argument(
"--webhook-url",
metavar="webhook_url",
default=None,
help="Receive files: URL to receive webhook notifications",
)
parser.add_argument(
"--disable-text",
action="store_true",
dest="disable_text",
help="Receive files: Disable receiving text messages",
)
parser.add_argument(
"--disable-files",
action="store_true",
dest="disable_files",
help="Receive files: Disable receiving files",
)
# Website args
parser.add_argument(
"--disable_csp",
action="store_true",
dest="disable_csp",
default=False,
help="Publish website: Disable Content Security Policy header (allows your website to use third-party resources)",
)
# Other
parser.add_argument(
"-v",
"--verbose",
action="store_true",
dest="verbose",
help="Log OnionShare errors to stdout, and web errors to disk",
)
parser.add_argument(
"filename",
metavar="filename",
nargs="*",
help="List of files or folders to share",
)
args = parser.parse_args()
filenames = args.filename
for i in range(len(filenames)):
filenames[i] = os.path.abspath(filenames[i])
receive = bool(args.receive)
website = bool(args.website)
chat = bool(args.chat)
local_only = bool(args.local_only)
connect_timeout = int(args.connect_timeout)
config_filename = args.config
persistent_filename = args.persistent
title = args.title
public = bool(args.public)
autostart_timer = int(args.autostart_timer)
autostop_timer = int(args.autostop_timer)
legacy = bool(args.legacy)
client_auth = bool(args.client_auth)
autostop_sharing = not bool(args.no_autostop_sharing)
data_dir = args.data_dir
webhook_url = args.webhook_url
disable_text = args.disable_text
disable_files = args.disable_files
disable_csp = bool(args.disable_csp)
verbose = bool(args.verbose)
if receive:
mode = "receive"
elif website:
mode = "website"
elif chat:
mode = "chat"
else:
mode = "share"
# Verbose mode?
common.verbose = verbose
# client_auth can only be set if legacy is also set
if client_auth and not legacy:
print(
"Client authentication (--client-auth) is only supported with with legacy onion services (--legacy)"
)
sys.exit()
# Re-load settings, if a custom config was passed in
if config_filename:
common.load_settings(config_filename)
else:
common.load_settings()
# Mode settings
if persistent_filename:
mode_settings = ModeSettings(common, persistent_filename)
mode_settings.set("persistent", "enabled", True)
mode_settings.set("persistent", "mode", mode)
else:
mode_settings = ModeSettings(common)
if mode_settings.just_created:
# This means the mode settings were just created, not loaded from disk
mode_settings.set("general", "title", title)
mode_settings.set("general", "public", public)
mode_settings.set("general", "autostart_timer", autostart_timer)
mode_settings.set("general", "autostop_timer", autostop_timer)
mode_settings.set("general", "legacy", legacy)
mode_settings.set("general", "client_auth", client_auth)
if mode == "share":
mode_settings.set("share", "autostop_sharing", autostop_sharing)
if mode == "receive":
if data_dir:
mode_settings.set("receive", "data_dir", data_dir)
if webhook_url:
mode_settings.set("receive", "webhook_url", webhook_url)
mode_settings.set("receive", "disable_text", disable_text)
mode_settings.set("receive", "disable_files", disable_files)
if mode == "website":
mode_settings.set("website", "disable_csp", disable_csp)
else:
# See what the persistent mode was
mode = mode_settings.get("persistent", "mode")
# In share and website mode, you must supply a list of filenames
if mode == "share" or mode == "website":
# Unless you passed in a persistent filename, in which case get the filenames from
# the mode settings
if (
persistent_filename
and not mode_settings.just_created
and len(filenames) != 0
):
filenames = mode_settings.get(mode, "filenames")
else:
# Make sure filenames given if not using receiver mode
if len(filenames) == 0:
if persistent_filename:
mode_settings.delete()
parser.print_help()
sys.exit()
# Validate filenames
valid = True
for filename in filenames:
if not os.path.isfile(filename) and not os.path.isdir(filename):
print(f"{filename} is not a valid file.")
valid = False
if not os.access(filename, os.R_OK):
print(f"{filename} is not a readable file.")
valid = False
if not valid:
sys.exit()
# Save the filenames in persistent file
if persistent_filename:
mode_settings.set(mode, "filenames", filenames)
# In receive mode, you must allows either text, files, or both
if mode == "receive" and disable_text and disable_files:
print("You cannot disable both text and files")
sys.exit()
# Create the Web object
web = Web(common, False, mode_settings, mode)
# Start the Onion object
try:
onion = Onion(common, use_tmp_dir=True)
except CannotFindTor:
print("You must install tor to use OnionShare from the command line")
if common.platform == "Darwin":
print("In macOS, you can do this with Homebrew (https://brew.sh):")
print(" brew install tor")
sys.exit()
try:
onion.connect(
custom_settings=False,
config=config_filename,
connect_timeout=connect_timeout,
local_only=local_only,
)
except KeyboardInterrupt:
print("")
sys.exit()
except Exception:
sys.exit()
# Start the onionshare app
try:
common.settings.load()
if mode_settings.get("general", "public"):
web.password = None
else:
web.generate_password(mode_settings.get("onion", "password"))
# Receive mode needs to know the tor proxy details for webhooks
if mode == "receive":
if local_only:
web.proxies = None
else:
(socks_address, socks_port) = onion.get_tor_socks_port()
web.proxies = {
"http": f"socks5h://{socks_address}:{socks_port}",
"https": f"socks5h://{socks_address}:{socks_port}",
}
app = OnionShare(common, onion, local_only, autostop_timer)
app.choose_port()
# Delay the startup if a startup timer was set
if autostart_timer > 0:
# Can't set a schedule that is later than the auto-stop timer
if autostop_timer > 0 and autostop_timer < autostart_timer:
print(
"The auto-stop time can't be the same or earlier than the auto-start time. Please update it to start sharing."
)
sys.exit()
app.start_onion_service(mode, mode_settings, False)
url = build_url(mode_settings, app, web)
schedule = datetime.now() + timedelta(seconds=autostart_timer)
if mode == "receive":
print(
f"Files sent to you appear in this folder: {mode_settings.get('receive', 'data_dir')}"
)
print("")
print(
"Warning: Receive mode lets people upload files to your computer. Some files can potentially take "
"control of your computer if you open them. Only open things from people you trust, or if you know "
"what you are doing."
)
print("")
if mode_settings.get("general", "client_auth"):
print(
f"Give this address and HidServAuth lineto your sender, and tell them it won't be accessible until: {schedule.strftime('%I:%M:%S%p, %b %d, %y')}"
)
print(app.auth_string)
else:
print(
f"Give this address to your sender, and tell them it won't be accessible until: {schedule.strftime('%I:%M:%S%p, %b %d, %y')}"
)
else:
if mode_settings.get("general", "client_auth"):
print(
f"Give this address and HidServAuth line to your recipient, and tell them it won't be accessible until: {schedule.strftime('%I:%M:%S%p, %b %d, %y')}"
)
print(app.auth_string)
else:
print(
f"Give this address to your recipient, and tell them it won't be accessible until: {schedule.strftime('%I:%M:%S%p, %b %d, %y')}"
)
print(url)
print("")
print("Waiting for the scheduled time before starting...")
app.onion.cleanup(False)
time.sleep(autostart_timer)
app.start_onion_service(mode, mode_settings)
else:
app.start_onion_service(mode, mode_settings)
except KeyboardInterrupt:
print("")
sys.exit()
except (TorTooOldEphemeral, TorTooOldStealth, TorErrorProtocolError) as e:
print("")
print(e.args[0])
sys.exit()
if mode == "website":
# Prepare files to share
try:
web.website_mode.set_file_info(filenames)
except OSError as e:
print(e.strerror)
sys.exit(1)
if mode == "share":
# Prepare files to share
print("Compressing files.")
try:
web.share_mode.set_file_info(filenames)
app.cleanup_filenames += web.share_mode.cleanup_filenames
except OSError as e:
print(e.strerror)
sys.exit(1)
# Warn about sending large files over Tor
if web.share_mode.download_filesize >= 157286400: # 150mb
print("")
print("Warning: Sending a large share could take hours")
print("")
# Start OnionShare http service in new thread
t = threading.Thread(target=web.start, args=(app.port,))
t.daemon = True
t.start()
try: # Trap Ctrl-C
# Wait for web.generate_password() to finish running
time.sleep(0.2)
# start auto-stop timer thread
if app.autostop_timer > 0:
app.autostop_timer_thread.start()
# Save the web password if we are using a persistent private key
if mode_settings.get("persistent", "enabled"):
if not mode_settings.get("onion", "password"):
mode_settings.set("onion", "password", web.password)
# mode_settings.save()
# Build the URL
url = build_url(mode_settings, app, web)
print("")
if autostart_timer > 0:
print("Server started")
else:
if mode == "receive":
print(
f"Files sent to you appear in this folder: {mode_settings.get('receive', 'data_dir')}"
)
print("")
print(
"Warning: Receive mode lets people upload files to your computer. Some files can potentially take "
"control of your computer if you open them. Only open things from people you trust, or if you know "
"what you are doing."
)
print("")
if mode_settings.get("general", "client_auth"):
print("Give this address and HidServAuth to the sender:")
print(url)
print(app.auth_string)
else:
print("Give this address to the sender:")
print(url)
else:
if mode_settings.get("general", "client_auth"):
print("Give this address and HidServAuth line to the recipient:")
print(url)
print(app.auth_string)
else:
print("Give this address to the recipient:")
print(url)
print("")
print("Press Ctrl+C to stop the server")
# Wait for app to close
while t.is_alive():
if app.autostop_timer > 0:
# if the auto-stop timer was set and has run out, stop the server
if not app.autostop_timer_thread.is_alive():
if mode == "share" or (mode == "website"):
# If there were no attempts to download the share, or all downloads are done, we can stop
if web.share_mode.cur_history_id == 0 or web.done:
print("Stopped because auto-stop timer ran out")
web.stop(app.port)
break
if mode == "receive":
if (
web.receive_mode.cur_history_id == 0
or not web.receive_mode.uploads_in_progress
):
print("Stopped because auto-stop timer ran out")
web.stop(app.port)
break
web.receive_mode.can_upload = False
# Allow KeyboardInterrupt exception to be handled with threads
# https://stackoverflow.com/questions/3788208/python-threading-ignores-keyboardinterrupt-exception
time.sleep(0.2)
except KeyboardInterrupt:
web.stop(app.port)
finally:
# Shutdown
app.cleanup()
onion.cleanup()
if __name__ == "__main__":
main()