def init_daemon(config_options):
config = SimpleConfig(config_options)
wallet_path = config.get_wallet_path()
if not WalletStorage.files_are_matched_by_path(wallet_path):
print("Error: Wallet file not found.")
print("Type 'electrum-sv create' to create a new wallet, "
"or provide a path to a wallet with the -w option")
sys.exit(0)
storage = WalletStorage(wallet_path)
if storage.is_encrypted():
if 'wallet_password' in config_options:
print(
'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:'******'password'] = password
def test_can_set_options_set_in_user_config(self):
another_path = tempfile.mkdtemp()
fake_read_user = lambda _: {"electrum_sv_path": self.electrum_dir}
read_user_dir = lambda: self.user_dir
config = SimpleConfig(options={},
read_user_config_function=fake_read_user,
read_user_dir_function=read_user_dir)
config.set_key("electrum_sv_path", another_path)
self.assertEqual(another_path, config.get("electrum_sv_path"))
def test_cannot_set_options_passed_by_command_line(self):
fake_read_user = lambda _: {"electrum_sv_path": "b"}
read_user_dir = lambda: self.user_dir
config = SimpleConfig(options=self.options,
read_user_config_function=fake_read_user,
read_user_dir_function=read_user_dir)
config.set_key("electrum_sv_path", "c")
self.assertEqual(self.options.get("electrum_sv_path"),
config.get("electrum_sv_path"))
def test_simple_config_user_config_is_used_if_others_arent_specified(self):
"""If no system-wide configuration and no command-line options are
specified, the user configuration is used instead."""
fake_read_user = lambda _: {"electrum_sv_path": self.electrum_dir}
read_user_dir = lambda: self.user_dir
config = SimpleConfig(options={},
read_user_config_function=fake_read_user,
read_user_dir_function=read_user_dir)
self.assertEqual(self.options.get("electrum_sv_path"),
config.get("electrum_sv_path"))
def test_simple_config_command_line_overrides_everything(self):
"""Options passed by command line override all other configuration
sources"""
fake_read_user = lambda _: {"electrum_sv_path": "b"}
read_user_dir = lambda: self.user_dir
config = SimpleConfig(options=self.options,
read_user_config_function=fake_read_user,
read_user_dir_function=read_user_dir)
self.assertEqual(self.options.get("electrum_sv_path"),
config.get("electrum_sv_path"))
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
wallet_path = config.get_wallet_path()
if cmd.requires_wallet and not WalletStorage.files_are_matched_by_path(
wallet_path):
print("Error: Wallet file not found.")
print("Type 'electrum-sv create' to create a new wallet, "
"or provide a path to a wallet with the -w option")
sys.exit(0)
# instantiate wallet for command-line
storage = WalletStorage(wallet_path)
# important warning
if cmd.name in ['getprivatekeys']:
print("WARNING: ALL your private keys are secret.", file=sys.stderr)
print(
"Exposing a single private key can compromise your entire wallet!",
file=sys.stderr)
print(
"In particular, DO NOT use 'redeem private key' services "
"proposed by third parties.",
file=sys.stderr)
# 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:'******'password'] = password
if cmd.name == 'password':
new_password = prompt_password('New password:'******'new_password'] = new_password
return cmd, password
def test_user_config_is_not_written_with_read_only_config(self):
"""The user config does not contain command-line options when saved."""
fake_read_user = lambda _: {"something": "a"}
read_user_dir = lambda: self.user_dir
self.options.update({"something": "c"})
config = SimpleConfig(options=self.options,
read_user_config_function=fake_read_user,
read_user_dir_function=read_user_dir)
config.save_user_config()
contents = None
with open(os.path.join(self.electrum_dir, "config"), "r") as f:
contents = f.read()
result = ast.literal_eval(contents)
result.pop('config_version', None)
self.assertEqual({"something": "a"}, result)
def get_peers():
config = SimpleConfig()
peers = {}
# 1. get connected interfaces
server = config.get('server')
interfaces = get_interfaces([server])
if not interfaces:
print("No connection to", server)
return []
# 2. get list of peers
interface = interfaces[server]
interface.queue_request('server.peers.subscribe', [], 0)
responses = wait_on_interfaces(interfaces).get(server)
if responses:
response = responses[0][1] # One response, (req, response) tuple
peers = parse_servers(response.get('result'))
return peers
def test_simple_config_key_rename(self):
"""auto_cycle was renamed auto_connect"""
fake_read_user = lambda _: {"auto_cycle": True}
read_user_dir = lambda: self.user_dir
config = SimpleConfig(options=self.options,
read_user_config_function=fake_read_user,
read_user_dir_function=read_user_dir)
self.assertEqual(config.get("auto_connect"), True)
self.assertEqual(config.get("auto_cycle"), None)
fake_read_user = lambda _: {"auto_connect": False, "auto_cycle": True}
config = SimpleConfig(options=self.options,
read_user_config_function=fake_read_user,
read_user_dir_function=read_user_dir)
self.assertEqual(config.get("auto_connect"), False)
self.assertEqual(config.get("auto_cycle"), None)
def get_interfaces(servers, timeout=10):
'''Returns a map of servers to connected interfaces. If any
connections fail or timeout, they will be missing from the map.
'''
socket_queue = queue.Queue()
config = SimpleConfig()
connecting = {}
for server in servers:
if server not in connecting:
connecting[server] = Connection(server, socket_queue, config.path)
interfaces = {}
timeout = time.time() + timeout
count = 0
while time.time() < timeout and count < len(servers):
try:
server, socket = socket_queue.get(True, 0.3)
except queue.Empty:
continue
if socket:
interfaces[server] = Interface(server, socket)
count += 1
return interfaces
def main():
# The hook will only be used in the Qt GUI right now
setup_thread_excepthook()
# on osx, delete Process Serial Number arg generated for apps launched in Finder
sys.argv = [x for x in sys.argv if not x.startswith('-psn')]
# 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 Exception('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__
config_options = {
key: value
for key, value in config_options.items()
if value is not None and key not in config_variables.get(args.cmd, {})
}
logs.set_level(config_options['verbose'])
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['electrum_sv_path'] = os.path.join(
os.path.dirname(os.path.realpath(__file__)), 'electrum_sv_data')
if config_options.get('file_logging'):
log_path = os.path.join(platform.user_dir(prefer_local=True), "logs")
os.makedirs(log_path, exist_ok=True)
log_path = os.path.join(log_path,
time.strftime("%Y%m%d-%H%M%S") + ".log")
logs.add_file_output(log_path)
if config_options.get('testnet'):
Net.set_to(SVTestnet)
# check uri
uri = config_options.get('url')
if uri:
if not web.is_URI(uri):
print('unknown command:', uri, file=sys.stderr)
sys.exit(1)
config_options['url'] = uri
# todo: defer this to gui
config = SimpleConfig(config_options)
cmdname = config.get('cmd')
# Set the app state proxy
if cmdname == 'gui':
try:
from electrumsv.gui.qt.app_state import QtAppStateProxy
except ImportError as e:
platform.missing_import(e)
QtAppStateProxy(config, 'qt')
else:
AppStateProxy(config, 'cmdline')
# 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:
d = daemon.Daemon(fd, True)
d.start()
app_state.app.run_gui()
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':
pid = os.fork()
if pid:
print("starting daemon (PID %d)" % pid,
file=sys.stderr)
sys.exit(0)
d = daemon.Daemon(fd, False)
d.start()
if config.get('websocket_server'):
try:
from electrumsv import websockets
except ImportError as e:
platform.missing_import(e)
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("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("Daemon not running; try 'electrum-sv daemon start'")
sys.exit(1)
else:
result = run_offline_command(config, config_options)
# print result
if isinstance(result, str):
print(result)
elif type(result) is dict and result.get('error'):
print(result.get('error'), file=sys.stderr)
elif result is not None:
print(json_encode(result))
sys.exit(0)
def main():
enforce_requirements()
setup_windows_console()
# The hook will only be used in the Qt GUI right now
setup_thread_excepthook()
# on osx, delete Process Serial Number arg generated for apps launched in Finder
sys.argv = [x for x in sys.argv if not x.startswith('-psn')]
# 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 Exception('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 various constructors
config_options = args.__dict__
config_options = {
key: value
for key, value in config_options.items()
if value is not None and key not in config_variables.get(args.cmd, {})
}
logs.set_level(config_options['verbose'])
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)
portable_base_path = None
try:
if startup.is_bundle and os.path.exists(
os.path.join(sys._MEIPASS, 'is_portable')):
config_options['portable'] = True
# Ensure the wallet data is stored in the same directory as the executable.
portable_base_path = os.path.dirname(sys.executable)
except AttributeError:
config_options['portable'] = False
if config_options.get('portable'):
if portable_base_path is None:
# Default to the same directory the 'electrum-sv' script is in.
portable_base_path = os.path.dirname(os.path.realpath(sys.argv[0]))
config_options['electrum_sv_path'] = os.path.join(
portable_base_path, 'electrum_sv_data')
if config_options.get('file_logging'):
if config_options.get('portable'):
log_path = os.path.join(config_options['electrum_sv_path'], "logs")
else:
log_path = os.path.join(platform.user_dir(prefer_local=True),
"logs")
os.makedirs(log_path, exist_ok=True)
log_path = os.path.join(log_path,
time.strftime("%Y%m%d-%H%M%S") + ".log")
logs.add_file_output(log_path)
if config_options.get('testnet'):
Net.set_to(SVTestnet)
elif config_options.get('scalingtestnet'):
Net.set_to(SVScalingTestnet)
# check uri
uri = config_options.get('url')
if uri:
if not web.is_URI(uri):
print('unknown command:', uri, file=sys.stderr)
sys.exit(1)
config_options['url'] = uri
# todo: defer this to gui
config = SimpleConfig(config_options)
cmdname = config.get('cmd')
# Set the app state proxy
if cmdname == 'gui':
try:
from electrumsv.gui.qt.app_state import QtAppStateProxy
except ImportError as e:
platform.missing_import(e)
QtAppStateProxy(config, 'qt')
elif cmdname == 'daemon' and 'daemon_app_module' in config_options:
load_app_module(config_options['daemon_app_module'], config)
else:
AppStateProxy(config, 'cmdline')
app_state.set_app(DefaultApp())
# 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:
run_app_with_daemon(fd, True, config_options)
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 not app_state.has_app():
print("No application present to run.")
sys.exit(0)
if subcommand == 'start':
if not hasattr(os, "fork"):
print(
f"Starting the daemon is not supported on {sys.platform}."
)
sys.exit(0)
pid = os.fork()
if pid:
print("Starting daemon (PID %d)" % pid,
file=sys.stderr)
sys.exit(0)
run_app_with_daemon(fd, False, config_options)
else:
result = server.daemon(config_options)
else:
server = daemon.get_server(config)
if server is not None:
result = server.daemon(config_options)
else:
print("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("Daemon not running; try 'electrum-sv daemon start'")
sys.exit(1)
else:
result = run_offline_command(config, config_options)
# print result
if isinstance(result, str):
print(result)
elif type(result) is dict and result.get('error'):
print(result.get('error'), file=sys.stderr)
elif result is not None:
print(json_encode(result))
sys.exit(0)
def __init__(self):
config = SimpleConfig()
super().__init__(config, 'qt')
def __init__(self):
config = SimpleConfig()
super().__init__(config, 'qt')
self.async_ = ASync()
def select_inputs_and_outputs(
self,
config: SimpleConfig,
wallet: AbstractAccount,
base_fee: int,
split_count: int = 50,
split_value: int = 10000,
desired_utxo_count: int = 2000,
max_utxo_margin: int = 200,
require_confirmed: bool = True,
) -> Union[Tuple[List[UTXO], List[TxOutput], bool], Fault]:
INPUT_COST = config.estimate_fee(INPUT_SIZE)
OUTPUT_COST = config.estimate_fee(OUTPUT_SIZE)
# adds extra inputs as required to meet the desired utxo_count.
with wallet._utxos_lock:
# Todo - optional filtering for frozen/maturity state (expensive for many utxos)?
all_coins = wallet._utxos.values(
) # no filtering for frozen or maturity state for speed.
# Ignore coins that are too expensive to send, or not confirmed.
# Todo - this is inefficient to iterate over all coins (need better handling of dust utxos)
if require_confirmed:
get_metadata = wallet.get_transaction_metadata
spendable_coins = [
coin for coin in all_coins
if coin.value > (INPUT_COST + OUTPUT_COST)
and get_metadata(coin.tx_hash).height > 0
]
else:
spendable_coins = [
coin for coin in all_coins
if coin.value > (INPUT_COST + OUTPUT_COST)
]
inputs = []
outputs = []
selection_value = base_fee
attempted_split = False
if len(all_coins) < desired_utxo_count:
attempted_split = True
split_count = min(
split_count,
desired_utxo_count - len(all_coins) + max_utxo_margin)
# Increase the transaction cost for the additional required outputs.
selection_value += split_count * OUTPUT_COST + split_count * split_value
# Collect sufficient inputs to cover the output value.
# highest value coins first for splitting
ordered_coins = sorted(spendable_coins,
key=lambda k: k.value,
reverse=True)
for coin in ordered_coins:
inputs.append(coin)
if sum(input.value for input in inputs) >= selection_value:
break
# Increase the transaction cost for the additional required input.
selection_value += INPUT_COST
if len(inputs):
# We ensure that we do not use conflicting addresses for the split outputs by
# explicitly generating the addresses we are splitting to.
fresh_keys = wallet.get_fresh_keys(RECEIVING_SUBPATH,
count=split_count)
for key in fresh_keys:
derivation_path = wallet.get_derivation_path(
key.keyinstance_id)
pubkey = wallet.derive_pubkeys(derivation_path)
outputs.append(
TxOutput(split_value, pubkey.P2PKH_script()))
return inputs, outputs, attempted_split
for coin in spendable_coins:
inputs.append(coin)
if sum(input.value for input in inputs) >= selection_value:
break
# Increase the transaction cost for the additional required input.
selection_value += INPUT_COST
else:
# We failed to collect enough inputs to cover the outputs.
raise InsufficientCoinsError
return inputs, outputs, attempted_split
#!/usr/bin/env python
# A simple script that connects to a server and displays block headers
import sys
import time
from electrumsv.simple_config import SimpleConfig
from electrumsv.network import Network
from electrumsv.util import json_encode
# start network
c = SimpleConfig()
network = Network(c)
network.start()
# wait until connected
while network.is_connecting():
time.sleep(0.1)
if not network.is_connected():
print("daemon is not connected")
sys.exit(1)
# 2. send the subscription
callback = lambda response: print(json_encode(response.get('result')))
network.send([('server.version', ["block_headers script", "1.2"])], callback)
network.send([('blockchain.headers.subscribe', [])], callback)
# 3. wait for results
while network.is_connected():