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electrum
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electrum
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#!/usr/bin/env python2
# -*- mode: python -*-
#
# Electrum - lightweight Bitcoin client
# Copyright (C) 2011 thomasv@gitorious
#
# 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/>.
from decimal import Decimal
import json
import os
import re
import sys
import time
import traceback
import threading
import socket
import Queue
from collections import defaultdict
DAEMON_SOCKET = 'daemon.sock'
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, "setup-release.py"))
is_android = 'ANDROID_DATA' in os.environ
is_kivy = os.environ.get('PYTHONHOME','').find('kivy') != -1
if is_local or is_android:
sys.path.insert(0, os.path.join(script_dir, 'packages'))
elif is_bundle and sys.platform=='darwin':
sys.path.insert(0, os.getcwd() + "/lib/python2.7/packages")
# pure-python dependencies need to be imported here for pyinstaller
try:
import dns
import aes
import ecdsa
import requests
import six
import qrcode
import pbkdf2
import google.protobuf
except ImportError as e:
sys.exit("Error: %s. Try 'sudo pip install <module-name>'"%e.message)
# 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
# check that we have the correct version of ecdsa
try:
from ecdsa.ecdsa import curve_secp256k1, generator_secp256k1
except Exception:
sys.exit("cannot import ecdsa.curve_secp256k1. You probably need to upgrade ecdsa.\nTry: sudo pip install --upgrade ecdsa")
# load local module as electrum
if is_bundle or is_local or is_android:
import imp
imp.load_module('electrum', *imp.find_module('lib'))
imp.load_module('electrum_gui', *imp.find_module('gui'))
from electrum import util
from electrum import SimpleConfig, Network, Wallet, WalletStorage
from electrum.util import print_msg, print_error, print_stderr, json_encode, json_decode, set_verbosity, InvalidPassword
from electrum.plugins import Plugins, run_hook, always_hook
from electrum.commands import get_parser, known_commands, Commands, config_variables
# 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 init_gui(config, network, plugins):
gui_name = config.get('gui', 'qt')
if gui_name in ['lite', 'classic']:
gui_name = 'qt'
gui = __import__('electrum_gui.' + gui_name, fromlist=['electrum_gui'])
gui = gui.ElectrumGui(config, network, plugins)
return gui
def init_cmdline(config):
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
if cmdname in ['createrawtx'] and config.get('unsigned'):
cmd.requires_password = False
cmd.requires_wallet = False
if cmdname == 'listrequests' and config.get('status'):
cmd.requires_network = True
# instanciate wallet for command-line
storage = WalletStorage(config.get_wallet_path())
if cmd.name in ['create', 'restore']:
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 cmd.name == 'restore':
text = config.get('text')
password = password_dialog() if Wallet.is_seed(text) or Wallet.is_xprv(text) or Wallet.is_private_key(text) else None
try:
wallet = Wallet.from_text(text, password, storage)
except BaseException as e:
sys.exit(str(e))
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)
else:
password = password_dialog()
wallet = Wallet(storage)
seed = wallet.make_seed()
wallet.add_seed(seed, password)
wallet.create_master_keys(password)
wallet.create_main_account(password)
wallet.synchronize()
print_msg("Your wallet generation seed is:\n\"%s\"" % seed)
print_msg("Please keep it in a safe place; if you lose it, you will not be able to restore your wallet.")
print_msg("Wallet saved in '%s'" % wallet.storage.path)
sys.exit(0)
if cmd.requires_wallet and not storage.file_exists:
print_msg("Error: Wallet file not found.")
print_msg("Type 'electrum create' to create a new wallet, or provide a path to a wallet with the -w option")
sys.exit(0)
# create wallet instance
wallet = Wallet(storage) if cmd.requires_wallet else None
# notify plugins
always_hook('cmdline_load_wallet', wallet)
# 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_password and wallet.use_encryption:
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)
# check password
try:
seed = wallet.check_password(password)
except InvalidPassword:
print_msg("Error: This password does not decode this wallet.")
sys.exit(1)
else:
password = None
# run the command
if cmd.name == 'deseed':
if not wallet.seed:
print_msg("Error: This wallet has no seed")
else:
ns = wallet.storage.path + '.seedless'
print_msg("Warning: you are going to create a seedless wallet'\nIt will be saved in '%s'" % ns)
if raw_input("Are you sure you want to continue? (y/n) ") in ['y', 'Y', 'yes']:
wallet.storage.path = ns
wallet.seed = ''
wallet.storage.put('seed', '', True)
wallet.use_encryption = False
wallet.storage.put('use_encryption', wallet.use_encryption, True)
for k in wallet.imported_keys.keys():
wallet.imported_keys[k] = ''
wallet.storage.put('imported_keys', wallet.imported_keys, True)
print_msg("Done.")
else:
print_msg("Action canceled.")
sys.exit(0)
elif cmd.name == 'password':
new_password = prompt_password('New password:')
wallet.update_password(password, new_password)
sys.exit(0)
return cmd, password
def run_command(config, network, password):
cmdname = config.get('cmd')
cmd = known_commands[cmdname]
# instanciate wallet for command-line
storage = WalletStorage(config.get_wallet_path())
# create wallet instance
wallet = Wallet(storage) if cmd.requires_wallet else None
# start threads
if wallet and network:
wallet.start_threads(network)
wallet.wait_until_synchronized()
# arguments passed to function
args = map(lambda x: config.get(x), cmd.params)
# decode json arguments
args = map(json_decode, args)
# options
args += map(lambda x: config.get(x), cmd.options)
cmd_runner = Commands(config, wallet, network)
cmd_runner.password = password
func = getattr(cmd_runner, cmd.name)
result = func(*args)
# stop threads
if wallet:
wallet.stop_threads()
return result
class ClientThread(util.DaemonThread):
def __init__(self, server, s):
util.DaemonThread.__init__(self)
self.server = server
self.client_pipe = util.SocketPipe(s)
self.response_queue = Queue.Queue()
self.server.add_client(self)
self.subscriptions = defaultdict(list)
self.network = self.server.network
def run(self):
config_options = self.client_pipe.get()
password = config_options.get('password')
config = SimpleConfig(config_options)
cmd = config.get('cmd')
if cmd == 'gui':
if self.server.gui:
if hasattr(server.gui, 'new_window'):
path = config.get_wallet_path()
self.server.gui.new_window(path, config.get('url'))
response = "ok"
else:
response = "error: current GUI does not support multiple windows"
else:
response = "Error: Electrum is running in daemon mode. Please stop the daemon first."
elif cmd == 'daemon':
sub = config.get('subcommand')
assert sub in ['start', 'stop', 'status']
if sub == 'start':
response = "Daemon already running"
elif sub == 'status':
p = self.network.get_parameters()
response = {
'path': self.network.config.path,
'server': p[0],
'blockchain_height': self.network.get_local_height(),
'server_height': self.network.get_server_height(),
'nodes': self.network.get_interfaces(),
'connected': self.network.is_connected(),
'auto_connect': p[4],
}
elif sub == 'stop':
self.server.stop()
response = "Daemon stopped"
else:
try:
response = run_command(config, self.network, password)
except BaseException as e:
err = traceback.format_exc()
response = {'error':err}
# send response and exit
self.client_pipe.send(response)
self.server.remove_client(self)
class NetworkServer(util.DaemonThread):
def __init__(self, config, network):
util.DaemonThread.__init__(self)
self.debug = False
self.config = config
self.pipe = util.QueuePipe()
self.network = network
self.lock = threading.RLock()
# each GUI is a client of the daemon
self.clients = []
# gui is None is we run as daemon
self.gui = None
def add_client(self, client):
for key in ['fee', 'status', 'banner', 'updated', 'servers', 'interfaces']:
value = self.network.get_status_value(key)
client.response_queue.put({'method':'network.status', 'params':[key, value]})
with self.lock:
self.clients.append(client)
print_error("new client:", len(self.clients))
def remove_client(self, client):
with self.lock:
self.clients.remove(client)
print_error("client quit:", len(self.clients))
def run(self):
s = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
daemon_socket = os.path.join(self.config.path, DAEMON_SOCKET)
if os.path.exists(daemon_socket):
os.remove(daemon_socket)
daemon_timeout = self.config.get('daemon_timeout', None)
s.bind(daemon_socket)
s.listen(5)
s.settimeout(0.1)
while self.is_running():
try:
connection, address = s.accept()
except socket.timeout:
continue
client = ClientThread(self, connection)
client.start()
print_error("Daemon exiting")
def get_daemon(config, start_daemon):
daemon_socket = os.path.join(config.path, DAEMON_SOCKET)
daemon_started = False
while True:
try:
s = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
s.connect(daemon_socket)
return s
except socket.error:
if not start_daemon:
return False
elif not daemon_started:
daemon_started = True
else:
time.sleep(0.1)
except:
# do not use daemon if AF_UNIX is not available (windows)
return False
if __name__ == '__main__':
# make sure that certificates are here
assert os.path.exists(requests.utils.DEFAULT_CA_BUNDLE_PATH)
# on osx, delete Process Serial Number arg generated for apps launched in Finder
sys.argv = 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] = raw_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)
if is_android:
config_options = {
'verbose': True,
'cmd': 'gui',
'gui': 'kivy' if is_kivy else 'android',
#'auto_connect': True,
}
else:
config_options = args.__dict__
for k, v in config_options.items():
if v is None or (k in config_variables.get(args.cmd, {}).keys()):
config_options.pop(k)
if config_options.get('server'):
config_options['auto_connect'] = False
if config_options.get('portable'):
config_options['electrum_path'] = os.path.join(os.path.dirname(os.path.realpath(__file__)), 'electrum_data')
set_verbosity(config_options.get('verbose'))
# check uri
uri = config_options.get('url')
if uri:
if not re.match('^bitcoin:', uri):
print_stderr('unknown command:', uri)
sys.exit(1)
config_options['url'] = uri
config = SimpleConfig(config_options)
cmd_name = config.get('cmd')
# initialize plugins.
gui_name = config.get('gui', 'qt') if cmd_name == 'gui' else 'cmdline'
plugins = Plugins(config, is_bundle or is_local or is_android, gui_name)
# run command offline
if cmd_name not in ['gui', 'daemon']:
cmd, password = init_cmdline(config)
if not cmd.requires_network or config.get('offline'):
result = run_command(config, None, password)
print_msg(json_encode(result))
sys.exit(0)
else:
config_options['password'] = password
# check if daemon is running
s = get_daemon(config, False)
if s:
p = util.SocketPipe(s)
p.set_timeout(1000000)
p.send(config_options)
result = p.get()
s.close()
if type(result) in [str, unicode]:
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)
# daemon is not running
if cmd_name == 'gui':
if not config.get('offline'):
network = Network(config, plugins)
network.start()
else:
network = None
server = NetworkServer(config, network)
server.start()
server.gui = init_gui(config, network, plugins)
server.gui.main()
elif cmd_name == 'daemon':
subcommand = config.get('subcommand')
if subcommand in ['status', 'stop']:
print_msg("Daemon not running")
sys.exit(1)
elif subcommand == 'start':
p = os.fork()
if p == 0:
network = Network(config, plugins)
network.start()
server = NetworkServer(config, network)
if config.get('websocket_server'):
from electrum import websockets
websockets.WebSocketServer(config, server).start()
if config.get('requests_dir'):
util.check_www_dir(config.get('requests_dir'))
server.start()
server.join()
else:
print_stderr("starting daemon (PID %d)"%p)
sys.exit(0)
else:
print_msg("syntax: electrum daemon <start|status|stop>")
sys.exit(1)
else:
print_msg("Network daemon is not running. Try 'electrum daemon start'\nIf you want to run this command offline, use the -o flag.")
sys.exit(1)