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electron-cash
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#!/usr/bin/env python3
# -*- mode: python3 -*-
#
# Electrum - lightweight Bitcoin client
# Copyright (C) 2011 thomasv@gitorious
#
# Electron Cash - lightweight Bitcoin Cash client
# Copyright (C) 2017-2019 The Electron Cash Developers
#
# Permission is hereby granted, free of charge, to any person
# obtaining a copy of this software and associated documentation files
# (the "Software"), to deal in the Software without restriction,
# including without limitation the rights to use, copy, modify, merge,
# publish, distribute, sublicense, and/or sell copies of the Software,
# and to permit persons to whom the Software is furnished to do so,
# subject to the following conditions:
#
# The above copyright notice and this permission notice shall be
# included in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
# BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
# ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.
import os, sys
# Workaround for PyQt5 5.12.3
# see https://github.com/pyinstaller/pyinstaller/issues/4293
if sys.platform == "win32" and hasattr(sys, 'frozen') and hasattr(sys, '_MEIPASS'):
os.environ['PATH'] = sys._MEIPASS + ";" + os.environ['PATH']
# Note CashShuffle's .proto files have namespace conflicts with keepkey
# This is a workaround to force the python implementation versus the C++
# implementation which does more intelligent things with protobuf namespaces
os.environ['PROTOCOL_BUFFERS_PYTHON_IMPLEMENTATION'] = 'python'
if sys.version_info < (3, 6):
sys.exit("*** Electron Cash support for Python 3.5 has been discontinued.\n"
"*** Please run Electron Cash with Python 3.6 or above.")
# from https://gist.github.com/tito/09c42fb4767721dc323d
import threading
try:
import jnius
except:
jnius = None
if jnius:
orig_thread_run = threading.Thread.run
def thread_check_run(*args, **kwargs):
try:
return orig_thread_run(*args, **kwargs)
finally:
jnius.detach()
threading.Thread.run = thread_check_run
script_dir = os.path.dirname(os.path.realpath(__file__))
is_bundle = getattr(sys, 'frozen', False)
is_local = not is_bundle and os.path.exists(os.path.join(script_dir, "electron-cash.desktop"))
is_android = 'ANDROID_DATA' in os.environ
if is_local:
sys.path.insert(0, os.path.join(script_dir, 'packages'))
def check_imports():
# pure-python dependencies need to be imported here for pyinstaller
try:
import dns
import pyaes
import ecdsa
import requests
import qrcode
import google.protobuf
import jsonrpclib
except ImportError as e:
sys.exit("Error: %s. Try 'sudo pip install <module-name>'"%str(e))
# the following imports are for pyinstaller
from google.protobuf import descriptor
from google.protobuf import message
from google.protobuf import reflection
from google.protobuf import descriptor_pb2
from jsonrpclib import SimpleJSONRPCServer
# make sure that certificates are here
assert os.path.exists(requests.utils.DEFAULT_CA_BUNDLE_PATH)
if not is_android: # Avoid unnecessarily slowing down app startup.
check_imports()
# load local lib etc modules as electroncash*
if is_local:
import imp
imp.load_module('electroncash', *imp.find_module('lib'))
imp.load_module('electroncash_gui', *imp.find_module('gui'))
imp.load_module('electroncash_plugins', *imp.find_module('plugins'))
from electroncash import bitcoin, util
from electroncash import SimpleConfig, Network
from electroncash import networks
from electroncash.wallet import Wallet, ImportedPrivkeyWallet, ImportedAddressWallet
from electroncash.storage import WalletStorage
from electroncash.util import (print_msg, print_stderr, json_encode, json_decode,
set_verbosity, InvalidPassword)
from electroncash.i18n import _
from electroncash.commands import get_parser, known_commands, Commands, config_variables
from electroncash import daemon
from electroncash import keystore
from electroncash.mnemonic import Mnemonic, Mnemonic_Electrum
from electroncash.winconsole import create_or_attach_console # Import ok on other platforms, won't be called.
import electroncash_plugins
import electroncash.web as web
# get password routine
def prompt_password(prompt, confirm=True):
import getpass
password = getpass.getpass(prompt, stream=None)
if password and confirm:
password2 = getpass.getpass("Confirm: ")
if password != password2:
sys.exit("Error: Passwords do not match.")
if not password:
password = None
return password
def run_non_RPC(config):
cmdname = config.get('cmd')
storage = WalletStorage(config.get_wallet_path())
if storage.file_exists():
sys.exit("Error: Remove the existing wallet first!")
def password_dialog():
return prompt_password("Password (hit return if you do not wish to encrypt your wallet):")
if cmdname == 'restore':
text = config.get('text').strip()
passphrase = config.get('passphrase', '')
password = password_dialog() if keystore.is_private(text) else None
if keystore.is_address_list(text):
wallet = ImportedAddressWallet.from_text(storage, text)
elif keystore.is_private_key_list(text):
wallet = ImportedPrivkeyWallet.from_text(storage, text, password)
else:
if keystore.is_seed(text):
k = keystore.from_seed(text, passphrase) # seed format will be auto-detected with preference order: old, electrum, bip39
elif keystore.is_master_key(text):
k = keystore.from_master_key(text)
else:
sys.exit("Error: Seed or key not recognized")
if password:
k.update_password(None, password)
storage.put('keystore', k.dump())
storage.put('wallet_type', 'standard')
storage.put('use_encryption', bool(password))
seed_type = getattr(k, 'seed_type', None)
if seed_type:
storage.put('seed_type', seed_type) # save to top-level storage too so it doesn't get lost if user switches EC versions
storage.write()
wallet = Wallet(storage)
if not config.get('offline'):
network = Network(config)
network.start()
wallet.start_threads(network)
print_msg("Recovering wallet...")
wallet.synchronize()
wallet.wait_until_synchronized()
msg = "Recovery successful" if wallet.is_found() else "Found no history for this wallet"
else:
msg = "This wallet was restored offline. It may contain more addresses than displayed."
print_msg(msg)
elif cmdname == 'create':
password = password_dialog()
passphrase = config.get('passphrase', '')
seed_type = config.get('seed_type', 'bip39')
if seed_type == 'bip39':
seed = Mnemonic('en').make_seed()
elif seed_type in ['electrum', 'standard']:
seed_type = 'electrum'
seed = Mnemonic_Electrum('en').make_seed()
else:
raise RuntimeError("Unknown seed_type " + str(seed_type))
k = keystore.from_seed(seed, passphrase, seed_type=seed_type)
storage.put('seed_type', seed_type)
storage.put('keystore', k.dump())
storage.put('wallet_type', 'standard')
wallet = Wallet(storage)
wallet.update_password(None, password, True)
wallet.synchronize()
print_msg("Your wallet generation seed is:\n \"%s\"" % seed)
print_msg("Wallet seed format:", seed_type)
if k.has_derivation() and seed_type != "electrum":
print_msg("Your wallet derivation path is:", str(k.derivation))
print_msg("Please keep your seed information in a safe place; if you lose it, you will not be able to restore your wallet.")
wallet.storage.write()
print_msg("Wallet saved in '%s'" % wallet.storage.path)
sys.exit(0)
def init_daemon(config_options):
config = SimpleConfig(config_options)
storage = WalletStorage(config.get_wallet_path())
if not storage.file_exists():
print_msg("Error: Wallet file not found.")
print_msg("Type 'electron-cash create' to create a new wallet, or provide a path to a wallet with the -w option")
sys.exit(0)
if storage.is_encrypted():
if 'wallet_password' in config_options:
print_msg('Warning: unlocking wallet with commandline argument \"--walletpassword\"')
password = config_options['wallet_password']
elif config.get('password'):
password = config.get('password')
else:
password = prompt_password('Password:', False)
if not password:
print_msg("Error: Password required")
sys.exit(1)
else:
password = None
config_options['password'] = password
def init_cmdline(config_options, server):
config = SimpleConfig(config_options)
cmdname = config.get('cmd')
cmd = known_commands[cmdname]
if cmdname == 'signtransaction' and config.get('privkey'):
cmd.requires_wallet = False
cmd.requires_password = False
if cmdname in ['payto', 'paytomany'] and config.get('unsigned'):
cmd.requires_password = False
if cmdname in ['payto', 'paytomany'] and config.get('broadcast'):
cmd.requires_network = True
# instanciate wallet for command-line
storage = WalletStorage(config.get_wallet_path())
if cmd.requires_wallet and not storage.file_exists():
print_msg("Error: Wallet file not found.")
print_msg("Type 'electron-cash create' to create a new wallet, or provide a path to a wallet with the -w option")
sys.exit(0)
# important warning
if cmd.name in ['getprivatekeys']:
print_stderr("WARNING: ALL your private keys are secret.")
print_stderr("Exposing a single private key can compromise your entire wallet!")
print_stderr("In particular, DO NOT use 'redeem private key' services proposed by third parties.")
# commands needing password
if (cmd.requires_wallet and storage.is_encrypted() and server is None)\
or (cmd.requires_password and (storage.get('use_encryption') or storage.is_encrypted())):
if config.get('password'):
password = config.get('password')
else:
password = prompt_password('Password:', False)
if not password:
print_msg("Error: Password required")
sys.exit(1)
else:
password = None
config_options['password'] = password
if cmd.name == 'password':
new_password = prompt_password('New password:')
config_options['new_password'] = new_password
return cmd, password
def run_offline_command(config, config_options):
cmdname = config.get('cmd')
cmd = known_commands[cmdname]
password = config_options.get('password')
if cmd.requires_wallet:
storage = WalletStorage(config.get_wallet_path())
if storage.is_encrypted():
storage.decrypt(password)
wallet = Wallet(storage)
else:
wallet = None
# check password
if cmd.requires_password and storage.get('use_encryption'):
try:
seed = wallet.check_password(password)
except InvalidPassword:
print_msg("Error: This password does not decode this wallet.")
sys.exit(1)
if cmd.requires_network:
print_msg("Warning: running command offline")
# arguments passed to function
args = [config.get(x) for x in cmd.params]
# decode json arguments
if cmdname not in ('setconfig',):
args = list(map(json_decode, args))
# options
kwargs = {}
for x in cmd.options:
kwargs[x] = (config_options.get(x) if x in ['password', 'new_password'] else config.get(x))
cmd_runner = Commands(config, wallet, None)
func = getattr(cmd_runner, cmd.name)
result = func(*args, **kwargs)
# save wallet
if wallet:
wallet.storage.write()
return result
def init_plugins(config, gui_name):
from electroncash.plugins import Plugins
return Plugins(config, gui_name)
if __name__ == '__main__':
# The hook will only be used in the Qt GUI right now
util.setup_thread_excepthook()
# On windows, allocate a console if needed
if sys.platform.startswith('win'):
require_console = '-v' in sys.argv or '--verbose' in sys.argv
console_title = _("Electron Cash - Verbose Output") if require_console else None
# Attempt to attach to ancestor process console. If create=True we will
# create a new conole window if no ancestor process console exists.
# (Presumably if user ran with -v, they expect console output).
# The below is required to be able to get verbose or console output
# if running from cmd.exe (see spesmilo#2592, Electron-Cash#1295).
# The below will be a no-op if the terminal was msys/mingw/cygwin, since
# there will already be a console attached in that case.
# Worst case: The below will silently ignore errors so that startup
# may proceed unimpeded.
create_or_attach_console(create=require_console, title=console_title)
# on osx, delete Process Serial Number arg generated for apps launched in Finder
sys.argv = list(filter(lambda x: not x.startswith('-psn'), sys.argv))
# old 'help' syntax
if len(sys.argv) > 1 and sys.argv[1] == 'help':
sys.argv.remove('help')
sys.argv.append('-h')
# read arguments from stdin pipe and prompt
for i, arg in enumerate(sys.argv):
if arg == '-':
if not sys.stdin.isatty():
sys.argv[i] = sys.stdin.read()
break
else:
raise BaseException('Cannot get argument from stdin')
elif arg == '?':
sys.argv[i] = input("Enter argument:")
elif arg == ':':
sys.argv[i] = prompt_password('Enter argument (will not echo):', False)
# parse command line
parser = get_parser()
args = parser.parse_args()
# config is an object passed to the various constructors (wallet, interface, gui)
config_options = args.__dict__
f = lambda key: config_options[key] is not None and key not in config_variables.get(args.cmd, {}).keys()
config_options = {key: config_options[key] for key in filter(f, config_options.keys())}
if config_options.get('server'):
config_options['auto_connect'] = False
config_options['cwd'] = os.getcwd()
# fixme: this can probably be achieved with a runtime hook (pyinstaller)
try:
if is_bundle and os.path.exists(os.path.join(sys._MEIPASS, 'is_portable')):
config_options['portable'] = True
except AttributeError:
config_options['portable'] = False
if config_options.get('portable'):
config_options['electron_cash_path'] = os.path.join(os.path.dirname(os.path.realpath(__file__)), 'electron_cash_data')
set_verbosity(config_options.get('verbose'))
have_testnet4 = False
if config_options.get('testnet4'):
networks.set_testnet4()
have_testnet4 = True
if config_options.get('testnet'):
if have_testnet4:
sys.exit("Cannot specify both --testnet and --testnet4")
networks.set_testnet()
# check uri
uri = config_options.get('url')
if uri:
lc_uri = uri.lower()
if not any(lc_uri.startswith(scheme + ':') for scheme in web.parseable_schemes()):
print_stderr('unknown command:', uri)
sys.exit(1)
config_options['url'] = uri
# todo: defer this to gui
config = SimpleConfig(config_options)
cmdname = config.get('cmd')
# run non-RPC commands separately
if cmdname in ['create', 'restore']:
run_non_RPC(config)
sys.exit(0)
if cmdname == 'gui':
fd, server = daemon.get_fd_or_server(config)
if fd is not None:
plugins = init_plugins(config, config.get('gui', 'qt'))
d = daemon.Daemon(config, fd, True, plugins)
d.start()
try:
d.init_gui()
finally:
d.stop() # Cleans up lockfile gracefully
d.join(timeout=5.0)
sys.exit(0)
else:
result = server.gui(config_options)
elif cmdname == 'daemon':
subcommand = config.get('subcommand')
if subcommand in ['load_wallet']:
init_daemon(config_options)
if subcommand in [None, 'start']:
fd, server = daemon.get_fd_or_server(config)
if fd is not None:
if subcommand == 'start':
if sys.platform == 'darwin':
sys.exit("MacOS does not support this usage due to the way the platform libraries work.\n"
"Please run the daemon without the 'start' option and manually detach/background the process.")
pid = os.fork()
if pid:
print_stderr("starting daemon (PID %d)" % pid)
os._exit(0) # exit without calling atexit handlers, in case there are any from e.g. a plugin, etc.
plugins = init_plugins(config, 'cmdline')
d = daemon.Daemon(config, fd, False, plugins)
d.start()
if config.get('websocket_server'):
from electroncash import websockets
websockets.WebSocketServer(config, d.network).start()
if config.get('requests_dir'):
path = os.path.join(config.get('requests_dir'), 'index.html')
if not os.path.exists(path):
print("Requests directory not configured.")
print("You can configure it using https://github.com/spesmilo/electrum-merchant")
sys.exit(1)
d.join()
sys.exit(0)
else:
result = server.daemon(config_options)
else:
server = daemon.get_server(config)
if server is not None:
result = server.daemon(config_options)
else:
print_msg("Daemon not running")
sys.exit(1)
else:
# command line
server = daemon.get_server(config)
init_cmdline(config_options, server)
if server is not None:
result = server.run_cmdline(config_options)
else:
cmd = known_commands[cmdname]
if cmd.requires_network:
print_msg("Daemon not running; try 'electron-cash daemon start'")
sys.exit(1)
else:
init_plugins(config, 'cmdline')
result = run_offline_command(config, config_options)
# print result
if isinstance(result, str):
print_msg(result)
elif type(result) is dict and result.get('error'):
print_stderr(result.get('error'))
elif result is not None:
print_msg(json_encode(result))
sys.exit(0)