def get_hwi_client():
'''create hwi client for plugged-in hardware wallet'''
# list devices
devices = commands.enumerate()
# make sure there is only one
assert len(devices) == 1, "One hardware wallet must be plugged in"
# make sure it's unlocked
device = devices[0]
fingerprint = device.get("fingerprint")
assert fingerprint is not None, f"Your ${device.type} is locked"
# return client that can address this device
if device['type'] == 'ledger':
client = ledger.LedgerClient(device['path'])
elif device['type'] == 'coldcard':
client = coldcard.ColdcardClient(device['path'])
elif device['type'] == 'trezor':
client = trezor.TrezorClient(device['path'])
else:
raise Exception(
f"Couldn't create client for you \"${device.type}\" device")
# set HWI to testnet
client.is_testnet = True
return client
def get_client_and_device(args, multisig):
# Make sure one and only one device is plugged in
devices = commands.enumerate(args.password)
if not devices:
raise JunctionError(
'No devices available. Enter your pin if device already plugged in'
)
if len(devices) > 1:
raise JunctionError('You can only plug in one device at a time')
device = devices[0]
# Can't instantiate bitbox client w/o pasphrase, so this needs to be before next block
if device.get("needs_passphrase_sent") and not args.password:
raise JunctionError(
'Please supply your device password with the --password flag')
# Define an HWI "client" based on depending on which device is plugged in
if device['type'] == 'ledger':
client = ledger.LedgerClient(device['path'])
elif device['type'] == 'digitalbitbox':
client = digitalbitbox.DigitalbitboxClient(device['path'],
args.password)
elif device['type'] == 'coldcard':
client = coldcard.ColdcardClient(device['path'])
elif device['type'] == 'trezor':
client = trezor.TrezorClient(device['path'])
else:
raise JunctionError(
f'Devices of type "{device["type"]}" not yet supported')
client.is_testnet = True
# this requires a client, so it needs to come after previous block
if device.get('needs_pin_sent'):
# this prints to stderr ... suppress it
with contextlib.redirect_stderr(io.StringIO()):
client.prompt_pin()
pin = input(
"Use the numeric keypad to enter your pin. The layout is:\n\t7 8 9\n\t4 5 6\n\t1 2 3\nPin: "
)
if not client.send_pin(pin)["success"]:
raise JunctionError('Pin is wrong')
# FIXME: device dict has not "fingerprint" key and we calling commands.enumerate() again throws error
# This hack retrievs and sets it manually
import time
time.sleep(1)
device['fingerprint'] = commands.get_xpub_fingerprint_as_id(
commands.getxpub(client, 'm/0h')['xpub'])
# FIXME: Commenting out for now because device variable is outdated in "needs_pin_sent" case and I can't manage to refresh it ...
# Get updated "device" (prior value may lack "fingerprint" if device was locked)
# if device.get("error"):
# raise JunctionError(f"Unexpected error: {device['error']}")
return client, device
def get_client(device, network):
if device['type'] == 'ledger':
client = ledger.LedgerClient(device['path'])
elif device['type'] == 'coldcard':
client = coldcard.ColdcardClient(device['path'])
elif device['type'] == 'trezor':
client = trezor.TrezorClient(device['path'])
else:
raise JunctionError(f'Devices of type "{device["type"]}" not yet supported')
# FIXME: junction needs mainnet / testnet flag somewhere ...
client.is_testnet = network != "mainnet"
return client
def devices():
devices = commands.enumerate()
# prompt pins
for device in devices:
if device.get('needs_pin_sent'):
global trezor_client
trezor_client = trezor.TrezorClient(device['path'])
trezor_client.prompt_pin()
everything_unlocked = not any(['error' in device for device in devices])
return render_template('devices.html',
devices=devices,
everything_unlocked=everything_unlocked)
def get_client_and_device(fingerprint):
# get device
devices = commands.enumerate()
device = None
for d in devices:
if d.get("fingerprint") == fingerprint:
device = d
assert device is not None
# get client
if device["type"] == "ledger":
client = ledger.LedgerClient(device["path"])
elif device["type"] == "coldcard":
client = coldcard.ColdcardClient(device["path"])
elif device["type"] == "trezor":
client = trezor.TrezorClient(device["path"])
else:
raise JunctionError(f'Devices of type "{device["type"]}" not yet supported')
client.is_testnet = True
return client, device