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electrum/run_electrum
SomberNight 1530668960 qt/qml: delay starting network until after first-start-network-setup
The qt, qml, and kivy GUIs have a first-start network-setup screen
that allows the user customising the network settings before creating a wallet.
Previously the daemon used to create the network and start it, before this screen,
before the GUI even starts. If the user changed network settings, those would
be set on the already running network, potentially including restarting the network.

Now it becomes the responsibility of the GUI to start the network, allowing this
first-start customisation to take place before starting the network at all.
The qt and the qml GUIs are adapted to make use of this. Kivy, and the other
prototype GUIs are not adapted and just start the network right away, as before.
2023-03-30 00:59:02 +00:00

511 lines
19 KiB
Python
Executable File

#!/usr/bin/env python3
# -*- mode: python -*-
#
# Electrum - lightweight Bitcoin client
# Copyright (C) 2011 thomasv@gitorious
#
# 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
import sys
MIN_PYTHON_VERSION = "3.8.0" # FIXME duplicated from setup.py
_min_python_version_tuple = tuple(map(int, (MIN_PYTHON_VERSION.split("."))))
if sys.version_info[:3] < _min_python_version_tuple:
sys.exit("Error: Electrum requires Python version >= %s..." % MIN_PYTHON_VERSION)
import warnings
import asyncio
from typing import TYPE_CHECKING, Optional
script_dir = os.path.dirname(os.path.realpath(__file__))
is_pyinstaller = getattr(sys, 'frozen', False)
is_android = 'ANDROID_DATA' in os.environ
is_appimage = 'APPIMAGE' in os.environ
# is_local: unpacked tar.gz but not pip installed, or git clone
is_local = (not is_pyinstaller and not is_android and not is_appimage
and os.path.exists(os.path.join(script_dir, "electrum.desktop")))
is_git_clone = is_local and os.path.exists(os.path.join(script_dir, ".git"))
if is_git_clone:
# developers should probably see all deprecation warnings.
warnings.simplefilter('default', DeprecationWarning)
if is_local or is_android:
sys.path.insert(0, os.path.join(script_dir, 'packages'))
if is_pyinstaller:
# Keep an open file handle for the binary that started us. On Windows, this
# prevents users from moving or renaming the exe file while running (doing which
# causes ImportErrors and other runtime failures). (see #4072)
_file = open(sys.executable, 'rb')
def check_imports():
# pure-python dependencies need to be imported here for pyinstaller
try:
import dns
import certifi
import qrcode
import google.protobuf
import aiorpcx
except ImportError as e:
sys.exit(f"Error: {str(e)}. Try 'sudo python3 -m pip install <module-name>'")
if not ((0, 22, 0) <= aiorpcx._version < (0, 23)):
raise RuntimeError(f'aiorpcX version {aiorpcx._version} does not match required: 0.22.0<=ver<0.23')
# 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
# make sure that certificates are here
assert os.path.exists(certifi.where())
if not is_android:
check_imports()
sys._ELECTRUM_RUNNING_VIA_RUNELECTRUM = True # used by logging.py
from electrum.logging import get_logger, configure_logging # import logging submodule first
from electrum import util
from electrum import constants
from electrum import SimpleConfig
from electrum.wallet_db import WalletDB
from electrum.wallet import Wallet
from electrum.storage import WalletStorage
from electrum.util import print_msg, print_stderr, json_encode, json_decode, UserCancelled
from electrum.util import InvalidPassword
from electrum.commands import get_parser, known_commands, Commands, config_variables
from electrum import daemon
from electrum import keystore
from electrum.util import create_and_start_event_loop
from electrum.i18n import set_language
if TYPE_CHECKING:
import threading
from electrum.plugin import Plugins
_logger = get_logger(__name__)
# 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_cmdline(config_options, wallet_path, server, *, config: 'SimpleConfig'):
cmdname = config.get('cmd')
cmd = known_commands[cmdname]
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
# instantiate wallet for command-line
storage = WalletStorage(wallet_path)
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(1)
# 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.")
# will we need a password
if not storage.is_encrypted():
db = WalletDB(storage.read(), manual_upgrades=False)
use_encryption = db.get('use_encryption')
else:
use_encryption = True
# commands needing password
if ((cmd.requires_wallet and storage.is_encrypted() and server is False)\
or (cmdname == 'load_wallet' and storage.is_encrypted())\
or (cmd.requires_password and use_encryption)):
if storage.is_encrypted_with_hw_device():
# this case is handled later in the control flow
password = None
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'] = config_options.get('password') or password
if cmd.name == 'password' and 'new_password' not in config_options:
new_password = prompt_password('New password:')
config_options['new_password'] = new_password
def get_connected_hw_devices(plugins: 'Plugins'):
supported_plugins = plugins.get_hardware_support()
# scan devices
devices = []
devmgr = plugins.device_manager
for splugin in supported_plugins:
name, plugin = splugin.name, splugin.plugin
if not plugin:
e = splugin.exception
_logger.error(f"{name}: error during plugin init: {repr(e)}")
continue
try:
u = devmgr.list_pairable_device_infos(handler=None, plugin=plugin)
except Exception as e:
_logger.error(f'error getting device infos for {name}: {repr(e)}')
continue
devices += list(map(lambda x: (name, x), u))
return devices
def get_password_for_hw_device_encrypted_storage(plugins: 'Plugins') -> str:
devices = get_connected_hw_devices(plugins)
if len(devices) == 0:
print_msg("Error: No connected hw device found. Cannot decrypt this wallet.")
sys.exit(1)
elif len(devices) > 1:
print_msg("Warning: multiple hardware devices detected. "
"The first one will be used to decrypt the wallet.")
# FIXME we use the "first" device, in case of multiple ones
name, device_info = devices[0]
devmgr = plugins.device_manager
try:
client = devmgr.client_by_id(device_info.device.id_)
return client.get_password_for_storage_encryption()
except UserCancelled:
sys.exit(0)
async def run_offline_command(config, config_options, plugins: 'Plugins'):
cmdname = config.get('cmd')
cmd = known_commands[cmdname]
password = config_options.get('password')
if 'wallet_path' in cmd.options and config_options.get('wallet_path') is None:
config_options['wallet_path'] = config.get_wallet_path()
if cmd.requires_wallet:
storage = WalletStorage(config.get_wallet_path())
if storage.is_encrypted():
if storage.is_encrypted_with_hw_device():
password = get_password_for_hw_device_encrypted_storage(plugins)
config_options['password'] = password
storage.decrypt(password)
db = WalletDB(storage.read(), manual_upgrades=False)
wallet = Wallet(db, storage, config=config)
config_options['wallet'] = wallet
else:
wallet = None
# check password
if cmd.requires_password and wallet.has_password():
try:
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 ['wallet_path', 'wallet', 'password', 'new_password'] else config.get(x))
cmd_runner = Commands(config=config)
func = getattr(cmd_runner, cmd.name)
result = await func(*args, **kwargs)
# save wallet
if wallet:
wallet.save_db()
return result
def init_plugins(config, gui_name):
from electrum.plugin import Plugins
return Plugins(config, gui_name)
loop = None # type: Optional[asyncio.AbstractEventLoop]
stop_loop = None # type: Optional[asyncio.Future]
loop_thread = None # type: Optional[threading.Thread]
def sys_exit(i):
# stop event loop and exit
if loop:
loop.call_soon_threadsafe(stop_loop.set_result, 1)
loop_thread.join(timeout=1)
sys.exit(i)
def main():
# The hook will only be used in the Qt GUI right now
util.setup_thread_excepthook()
# on macOS, 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')
# old '-v' syntax
# Due to this workaround that keeps old -v working,
# more advanced usages of -v need to use '-v='.
# e.g. -v=debug,network=warning,interface=error
try:
i = sys.argv.index('-v')
except ValueError:
pass
else:
sys.argv[i] = '-v*'
# 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)
if is_android:
import importlib.util
android_gui = 'kivy' if importlib.util.find_spec('kivy') else 'qml'
config_options = {
'verbosity': '*' if util.is_android_debug_apk() else '',
'cmd': 'gui',
'gui': android_gui,
'single_password': True,
}
if util.get_android_package_name() == "org.electrum.testnet.electrum":
# ~hack for easier testnet builds. pkgname subject to change.
config_options['testnet'] = True
else:
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'] = cwd = os.getcwd()
# fixme: this can probably be achieved with a runtime hook (pyinstaller)
if is_pyinstaller and os.path.exists(os.path.join(sys._MEIPASS, 'is_portable')):
config_options['portable'] = True
if config_options.get('portable'):
if is_local:
# running from git clone or local source: put datadir next to main script
datadir = os.path.join(os.path.dirname(os.path.realpath(__file__)), 'electrum_data')
else:
# Running a binary or installed source. The most generic but still reasonable thing
# is to use the current working directory. (see #7732)
# note: The main script is often unpacked to a temporary directory from a bundled executable,
# and we don't want to put the datadir inside a temp dir.
# note: Re the portable .exe on Windows, when the user double-clicks it, CWD gets set
# to the parent dir, i.e. we will put the datadir next to the exe.
datadir = os.path.join(os.path.realpath(cwd), 'electrum_data')
config_options['electrum_path'] = datadir
if not config_options.get('verbosity'):
warnings.simplefilter('ignore', DeprecationWarning)
# check uri
uri = config_options.get('url')
if uri and not util.is_uri(uri):
print_stderr('unknown command:', uri)
sys.exit(1)
config = SimpleConfig(config_options)
# set language as early as possible
# Note: we are already too late for strings that are declared in the global scope
# of an already imported module. However, the GUI and the plugins at least have
# not been imported yet.
# Note: it is ok to call set_language() again later. E.g. the Qt GUI has additional
# tools to figure out the default language so it will get called again there.
set_language(config.get('language'))
if config.get('testnet'):
constants.set_testnet()
elif config.get('regtest'):
constants.set_regtest()
elif config.get('simnet'):
constants.set_simnet()
elif config.get('signet'):
constants.set_signet()
cmdname = config.get('cmd')
if cmdname == 'daemon' and config.get("detach"):
# detect lockfile.
# This is not as good as get_file_descriptor, but that would require the asyncio loop
lockfile = daemon.get_lockfile(config)
if os.path.exists(lockfile):
print_stderr("Daemon already running (lockfile detected).")
print_stderr("Run 'electrum stop' to stop the daemon.")
sys.exit(1)
# fork before creating the asyncio event loop
pid = os.fork()
if pid:
print_stderr("starting daemon (PID %d)" % pid)
sys.exit(0)
else:
# redirect standard file descriptors
sys.stdout.flush()
sys.stderr.flush()
si = open(os.devnull, 'r')
so = open(os.devnull, 'w')
se = open(os.devnull, 'w')
os.dup2(si.fileno(), sys.stdin.fileno())
os.dup2(so.fileno(), sys.stdout.fileno())
os.dup2(se.fileno(), sys.stderr.fileno())
global loop, stop_loop, loop_thread
loop, stop_loop, loop_thread = create_and_start_event_loop()
try:
handle_cmd(
cmdname=cmdname,
config=config,
config_options=config_options,
)
except Exception:
_logger.exception("")
sys_exit(1)
def handle_cmd(*, cmdname: str, config: 'SimpleConfig', config_options: dict):
if cmdname == 'gui':
configure_logging(config)
fd = daemon.get_file_descriptor(config)
if fd is not None:
plugins = init_plugins(config, config.get('gui', 'qt'))
d = daemon.Daemon(config, fd, start_network=False)
try:
d.run_gui(config, plugins)
except BaseException as e:
_logger.exception('daemon.run_gui errored')
sys_exit(1)
else:
sys_exit(0)
else:
result = daemon.request(config, 'gui', (config_options,))
elif cmdname == 'daemon':
configure_logging(config)
fd = daemon.get_file_descriptor(config)
if fd is not None:
# run daemon
init_plugins(config, 'cmdline')
d = daemon.Daemon(config, fd)
d.run_daemon()
sys_exit(0)
else:
# FIXME this message is lost in detached mode (parent process already exited after forking)
print_msg("Daemon already running")
sys_exit(1)
else:
# command line
configure_logging(config, log_to_file=False) # don't spam logfiles for each client-side RPC, but support "-v"
cmd = known_commands[cmdname]
wallet_path = config.get_wallet_path()
if not config.get('offline'):
init_cmdline(config_options, wallet_path, True, config=config)
timeout = config.get('timeout', 60)
if timeout: timeout = int(timeout)
try:
result = daemon.request(config, 'run_cmdline', (config_options,), timeout)
except daemon.DaemonNotRunning:
print_msg("Daemon not running; try 'electrum daemon -d'")
if not cmd.requires_network:
print_msg("To run this command without a daemon, use --offline")
if cmd.name == "stop": # remove lockfile if it exists, as daemon looks dead
lockfile = daemon.get_lockfile(config)
if os.path.exists(lockfile):
print_msg("Found lingering lockfile for daemon. Removing.")
daemon.remove_lockfile(lockfile)
sys_exit(1)
except Exception as e:
print_stderr(str(e) or repr(e))
sys_exit(1)
else:
if cmd.requires_network:
print_msg("This command cannot be run offline")
sys_exit(1)
init_cmdline(config_options, wallet_path, False, config=config)
plugins = init_plugins(config, 'cmdline')
coro = run_offline_command(config, config_options, plugins)
fut = asyncio.run_coroutine_threadsafe(coro, loop)
try:
result = fut.result()
except Exception as e:
print_stderr(str(e) or repr(e))
sys_exit(1)
if isinstance(result, str):
print_msg(result)
elif type(result) is dict and result.get('error'):
print_stderr(result.get('error'))
sys_exit(1)
elif result is not None:
print_msg(json_encode(result))
sys_exit(0)
if __name__ == '__main__':
main()