def sign_transaction(self, tx, password):
if tx.is_complete():
return
client = self.get_client()
inputs = []
inputsPaths = []
pubKeys = []
chipInputs = []
redeemScripts = []
signatures = []
preparedTrustedInputs = []
changePath = ""
changeAmount = None
output = None
outputAmount = None
p2shTransaction = False
segwitTransaction = False
pin = ""
self.get_client() # prompt for the PIN before displaying the dialog if necessary
# Fetch inputs of the transaction to sign
derivations = self.get_tx_derivations(tx)
for txin in tx.inputs():
if txin['type'] == 'coinbase':
self.give_error("Coinbase not supported") # should never happen
if txin['type'] in ['p2sh']:
p2shTransaction = True
if txin['type'] in ['p2wpkh-p2sh', 'p2wsh-p2sh']:
if not self.get_client_electrum().supports_segwit():
self.give_error(MSG_NEEDS_FW_UPDATE_SEGWIT)
segwitTransaction = True
if txin['type'] in ['p2wpkh', 'p2wsh']:
if not self.get_client_electrum().supports_native_segwit():
self.give_error(MSG_NEEDS_FW_UPDATE_SEGWIT)
segwitTransaction = True
pubkeys, x_pubkeys = tx.get_sorted_pubkeys(txin)
for i, x_pubkey in enumerate(x_pubkeys):
if x_pubkey in derivations:
signingPos = i
s = derivations.get(x_pubkey)
hwAddress = "%s/%d/%d" % (self.get_derivation()[2:], s[0], s[1])
break
else:
self.give_error("No matching x_key for sign_transaction") # should never happen
redeemScript = Transaction.get_preimage_script(txin)
if txin.get('prev_tx') is None: # and not Transaction.is_segwit_input(txin):
# note: offline signing does not work atm even with segwit inputs for ledger
raise Exception(_('Offline signing with {} is not supported.').format(self.device))
inputs.append([txin['prev_tx'].raw, txin['prevout_n'], redeemScript, txin['prevout_hash'], signingPos, txin.get('sequence', 0xffffffff - 1) ])
inputsPaths.append(hwAddress)
pubKeys.append(pubkeys)
# Sanity check
if p2shTransaction:
for txin in tx.inputs():
if txin['type'] != 'p2sh':
self.give_error("P2SH / regular input mixed in same transaction not supported") # should never happen
txOutput = var_int(len(tx.outputs()))
for txout in tx.outputs():
output_type, addr, amount = txout
txOutput += int_to_hex(amount, 8)
script = tx.pay_script(output_type, addr)
txOutput += var_int(len(script)//2)
txOutput += script
txOutput = bfh(txOutput)
# Recognize outputs - only one output and one change is authorized
if not p2shTransaction:
if not self.get_client_electrum().supports_multi_output():
if len(tx.outputs()) > 2:
self.give_error("Transaction with more than 2 outputs not supported")
for _type, address, amount in tx.outputs():
assert _type == TYPE_ADDRESS
info = tx.output_info.get(address)
if (info is not None) and len(tx.outputs()) > 1 \
and info[0][0] == 1: # "is on 'change' branch"
index, xpubs, m = info
changePath = self.get_derivation()[2:] + "/%d/%d"%index
changeAmount = amount
else:
output = address
outputAmount = amount
self.handler.show_message(_("Confirm Transaction on your Ledger device..."))
try:
# Get trusted inputs from the original transactions
for utxo in inputs:
sequence = int_to_hex(utxo[5], 4)
if segwitTransaction:
txtmp = bitcoinTransaction(bfh(utxo[0]))
tmp = bfh(utxo[3])[::-1]
tmp += bfh(int_to_hex(utxo[1], 4))
tmp += txtmp.outputs[utxo[1]].amount
chipInputs.append({'value' : tmp, 'witness' : True, 'sequence' : sequence})
redeemScripts.append(bfh(utxo[2]))
elif not p2shTransaction:
txtmp = bitcoinTransaction(bfh(utxo[0]))
trustedInput = self.get_client().getTrustedInput(txtmp, utxo[1])
trustedInput['sequence'] = sequence
chipInputs.append(trustedInput)
redeemScripts.append(txtmp.outputs[utxo[1]].script)
else:
tmp = bfh(utxo[3])[::-1]
tmp += bfh(int_to_hex(utxo[1], 4))
chipInputs.append({'value' : tmp, 'sequence' : sequence})
redeemScripts.append(bfh(utxo[2]))
# Sign all inputs
firstTransaction = True
inputIndex = 0
rawTx = tx.serialize()
self.get_client().enableAlternate2fa(False)
if segwitTransaction:
self.get_client().startUntrustedTransaction(True, inputIndex,
chipInputs, redeemScripts[inputIndex])
if changePath:
# we don't set meaningful outputAddress, amount and fees
# as we only care about the alternateEncoding==True branch
outputData = self.get_client().finalizeInput(b'', 0, 0, changePath, bfh(rawTx))
else:
outputData = self.get_client().finalizeInputFull(txOutput)
outputData['outputData'] = txOutput
transactionOutput = outputData['outputData']
if outputData['confirmationNeeded']:
outputData['address'] = output
self.handler.finished()
pin = self.handler.get_auth( outputData ) # does the authenticate dialog and returns pin
if not pin:
raise UserWarning()
if pin != 'paired':
self.handler.show_message(_("Confirmed. Signing Transaction..."))
while inputIndex < len(inputs):
singleInput = [ chipInputs[inputIndex] ]
self.get_client().startUntrustedTransaction(False, 0,
singleInput, redeemScripts[inputIndex])
inputSignature = self.get_client().untrustedHashSign(inputsPaths[inputIndex], pin, lockTime=tx.locktime)
inputSignature[0] = 0x30 # force for 1.4.9+
signatures.append(inputSignature)
inputIndex = inputIndex + 1
else:
while inputIndex < len(inputs):
self.get_client().startUntrustedTransaction(firstTransaction, inputIndex,
chipInputs, redeemScripts[inputIndex])
if changePath:
# we don't set meaningful outputAddress, amount and fees
# as we only care about the alternateEncoding==True branch
outputData = self.get_client().finalizeInput(b'', 0, 0, changePath, bfh(rawTx))
else:
outputData = self.get_client().finalizeInputFull(txOutput)
outputData['outputData'] = txOutput
if firstTransaction:
transactionOutput = outputData['outputData']
if outputData['confirmationNeeded']:
outputData['address'] = output
self.handler.finished()
pin = self.handler.get_auth( outputData ) # does the authenticate dialog and returns pin
if not pin:
raise UserWarning()
if pin != 'paired':
self.handler.show_message(_("Confirmed. Signing Transaction..."))
else:
# Sign input with the provided PIN
inputSignature = self.get_client().untrustedHashSign(inputsPaths[inputIndex], pin, lockTime=tx.locktime)
inputSignature[0] = 0x30 # force for 1.4.9+
signatures.append(inputSignature)
inputIndex = inputIndex + 1
if pin != 'paired':
firstTransaction = False
except UserWarning:
self.handler.show_error(_('Cancelled by user'))
return
except BTChipException as e:
if e.sw == 0x6985: # cancelled by user
return
else:
traceback.print_exc(file=sys.stderr)
self.give_error(e, True)
except BaseException as e:
traceback.print_exc(file=sys.stdout)
self.give_error(e, True)
finally:
self.handler.finished()
for i, txin in enumerate(tx.inputs()):
signingPos = inputs[i][4]
txin['signatures'][signingPos] = bh2u(signatures[i])
tx.raw = tx.serialize()
def sign_transaction(self, tx: Transaction, password):
if tx.is_complete():
return
client = self.get_client()
inputs = []
inputsPaths = []
pubKeys = []
chipInputs = []
redeemScripts = []
signatures = []
changePath = ""
output = None
p2shTransaction = False
segwitTransaction = False
pin = ""
self.get_client(
) # prompt for the PIN before displaying the dialog if necessary
# Fetch inputs of the transaction to sign
derivations = self.get_tx_derivations(tx)
for txin in tx.inputs():
if txin['type'] == 'coinbase':
self.give_error(
"Coinbase not supported") # should never happen
if txin['type'] in ['p2sh']:
p2shTransaction = True
if txin['type'] in ['p2wpkh-p2sh', 'p2wsh-p2sh']:
if not self.get_client_electrum().supports_segwit():
self.give_error(MSG_NEEDS_FW_UPDATE_SEGWIT)
segwitTransaction = True
if txin['type'] in ['p2wpkh', 'p2wsh']:
if not self.get_client_electrum().supports_native_segwit():
self.give_error(MSG_NEEDS_FW_UPDATE_SEGWIT)
segwitTransaction = True
pubkeys, x_pubkeys = tx.get_sorted_pubkeys(txin)
for i, x_pubkey in enumerate(x_pubkeys):
if x_pubkey in derivations:
signingPos = i
s = derivations.get(x_pubkey)
hwAddress = "%s/%d/%d" % (self.get_derivation()[2:], s[0],
s[1])
break
else:
self.give_error("No matching x_key for sign_transaction"
) # should never happen
redeemScript = Transaction.get_preimage_script(txin)
txin_prev_tx = txin.get('prev_tx')
if txin_prev_tx is None and not Transaction.is_segwit_input(txin):
raise UserFacingException(
_('Offline signing with {} is not supported for legacy inputs.'
).format(self.device))
txin_prev_tx_raw = txin_prev_tx.raw if txin_prev_tx else None
inputs.append([
txin_prev_tx_raw, txin['prevout_n'], redeemScript,
txin['prevout_hash'], signingPos,
txin.get('sequence', 0xffffffff - 1),
txin.get('value')
])
inputsPaths.append(hwAddress)
pubKeys.append(pubkeys)
# Sanity check
if p2shTransaction:
for txin in tx.inputs():
if txin['type'] != 'p2sh':
self.give_error(
"P2SH / regular input mixed in same transaction not supported"
) # should never happen
txOutput = var_int(len(tx.outputs()))
for o in tx.outputs():
output_type, addr, amount = o.type, o.address, o.value
txOutput += int_to_hex(amount, 8)
script = tx.pay_script(output_type, addr)
txOutput += var_int(len(script) // 2)
txOutput += script
txOutput = bfh(txOutput)
# Recognize outputs
# - only one output and one change is authorized (for hw.1 and nano)
# - at most one output can bypass confirmation (~change) (for all)
if not p2shTransaction:
if not self.get_client_electrum().supports_multi_output():
if len(tx.outputs()) > 2:
self.give_error(
"Transaction with more than 2 outputs not supported")
has_change = False
any_output_on_change_branch = is_any_tx_output_on_change_branch(tx)
for o in tx.outputs():
assert o.type == TYPE_ADDRESS
info = tx.output_info.get(o.address)
if (info is not None) and len(tx.outputs()) > 1 \
and not has_change:
index = info.address_index
# prioritise hiding outputs on the 'change' branch from user
# because no more than one change address allowed
if info.is_change == any_output_on_change_branch:
changePath = self.get_derivation(
)[2:] + "/%d/%d" % index
has_change = True
else:
output = o.address
else:
output = o.address
self.handler.show_message(
_("Confirm Transaction on your Ledger device..."))
try:
# Get trusted inputs from the original transactions
for utxo in inputs:
sequence = int_to_hex(utxo[5], 4)
if segwitTransaction:
tmp = bfh(utxo[3])[::-1]
tmp += bfh(int_to_hex(utxo[1], 4))
tmp += bfh(int_to_hex(utxo[6], 8)) # txin['value']
chipInputs.append({
'value': tmp,
'witness': True,
'sequence': sequence
})
redeemScripts.append(bfh(utxo[2]))
elif not p2shTransaction:
txtmp = bitcoinTransaction(bfh(utxo[0]))
trustedInput = self.get_client().getTrustedInput(
txtmp, utxo[1])
trustedInput['sequence'] = sequence
chipInputs.append(trustedInput)
redeemScripts.append(txtmp.outputs[utxo[1]].script)
else:
tmp = bfh(utxo[3])[::-1]
tmp += bfh(int_to_hex(utxo[1], 4))
chipInputs.append({'value': tmp, 'sequence': sequence})
redeemScripts.append(bfh(utxo[2]))
# Sign all inputs
firstTransaction = True
inputIndex = 0
rawTx = tx.serialize_to_network()
self.get_client().enableAlternate2fa(False)
if segwitTransaction:
self.get_client().startUntrustedTransaction(
True,
inputIndex,
chipInputs,
redeemScripts[inputIndex],
version=tx.version)
# we don't set meaningful outputAddress, amount and fees
# as we only care about the alternateEncoding==True branch
outputData = self.get_client().finalizeInput(
b'', 0, 0, changePath, bfh(rawTx))
outputData['outputData'] = txOutput
if outputData['confirmationNeeded']:
outputData['address'] = output
self.handler.finished()
pin = self.handler.get_auth(
outputData
) # does the authenticate dialog and returns pin
if not pin:
raise UserWarning()
self.handler.show_message(
_("Confirmed. Signing Transaction..."))
while inputIndex < len(inputs):
singleInput = [chipInputs[inputIndex]]
self.get_client().startUntrustedTransaction(
False,
0,
singleInput,
redeemScripts[inputIndex],
version=tx.version)
inputSignature = self.get_client().untrustedHashSign(
inputsPaths[inputIndex], pin, lockTime=tx.locktime)
inputSignature[0] = 0x30 # force for 1.4.9+
signatures.append(inputSignature)
inputIndex = inputIndex + 1
else:
while inputIndex < len(inputs):
self.get_client().startUntrustedTransaction(
firstTransaction,
inputIndex,
chipInputs,
redeemScripts[inputIndex],
version=tx.version)
# we don't set meaningful outputAddress, amount and fees
# as we only care about the alternateEncoding==True branch
outputData = self.get_client().finalizeInput(
b'', 0, 0, changePath, bfh(rawTx))
outputData['outputData'] = txOutput
if outputData['confirmationNeeded']:
outputData['address'] = output
self.handler.finished()
pin = self.handler.get_auth(
outputData
) # does the authenticate dialog and returns pin
if not pin:
raise UserWarning()
self.handler.show_message(
_("Confirmed. Signing Transaction..."))
else:
# Sign input with the provided PIN
inputSignature = self.get_client().untrustedHashSign(
inputsPaths[inputIndex], pin, lockTime=tx.locktime)
inputSignature[0] = 0x30 # force for 1.4.9+
signatures.append(inputSignature)
inputIndex = inputIndex + 1
firstTransaction = False
except UserWarning:
self.handler.show_error(_('Cancelled by user'))
return
except BTChipException as e:
if e.sw in (0x6985, 0x6d00): # cancelled by user
return
elif e.sw == 0x6982:
raise # pin lock. decorator will catch it
else:
self.logger.exception('')
self.give_error(e, True)
except BaseException as e:
self.logger.exception('')
self.give_error(e, True)
finally:
self.handler.finished()
for i, txin in enumerate(tx.inputs()):
signingPos = inputs[i][4]
tx.add_signature_to_txin(i, signingPos, bh2u(signatures[i]))
tx.raw = tx.serialize()
def sign_transaction(
self,
keystore: Hardware_KeyStore,
tx: PartialTransaction,
wallet: Deterministic_Wallet,
):
if tx.is_complete():
return
if self.bitbox02_device is None:
raise Exception(
"Need to setup communication first before attempting any BitBox02 calls"
)
coin = self._get_coin()
tx_script_type = None
# Build BTCInputType list
inputs = []
for txin in tx.inputs():
my_pubkey, full_path = keystore.find_my_pubkey_in_txinout(txin)
if full_path is None:
raise Exception(
"A wallet owned pubkey was not found in the transaction input to be signed"
)
prev_tx = txin.utxo
if prev_tx is None:
raise UserFacingException(_('Missing previous tx.'))
prev_inputs: List[bitbox02.BTCPrevTxInputType] = []
prev_outputs: List[bitbox02.BTCPrevTxOutputType] = []
for prev_txin in prev_tx.inputs():
prev_inputs.append({
"prev_out_hash":
prev_txin.prevout.txid[::-1],
"prev_out_index":
prev_txin.prevout.out_idx,
"signature_script":
prev_txin.script_sig,
"sequence":
prev_txin.nsequence,
})
for prev_txout in prev_tx.outputs():
prev_outputs.append({
"value": prev_txout.value,
"pubkey_script": prev_txout.scriptpubkey,
})
inputs.append({
"prev_out_hash": txin.prevout.txid[::-1],
"prev_out_index": txin.prevout.out_idx,
"prev_out_value": txin.value_sats(),
"sequence": txin.nsequence,
"keypath": full_path,
"script_config_index": 0,
"prev_tx": {
"version": prev_tx.version,
"locktime": prev_tx.locktime,
"inputs": prev_inputs,
"outputs": prev_outputs,
},
})
if tx_script_type == None:
tx_script_type = txin.script_type
elif tx_script_type != txin.script_type:
raise Exception("Cannot mix different input script types")
if tx_script_type == "p2wpkh":
tx_script_type = bitbox02.btc.BTCScriptConfig(
simple_type=bitbox02.btc.BTCScriptConfig.P2WPKH)
elif tx_script_type == "p2wpkh-p2sh":
tx_script_type = bitbox02.btc.BTCScriptConfig(
simple_type=bitbox02.btc.BTCScriptConfig.P2WPKH_P2SH)
elif tx_script_type in ("p2wsh-p2sh", "p2wsh"):
if type(wallet) is Multisig_Wallet:
tx_script_type = self.btc_multisig_config(
coin, full_path, wallet, tx_script_type)
else:
raise Exception(
"Can only use p2wsh-p2sh or p2wsh with multisig wallets")
else:
raise UserFacingException(
"invalid input script type: {} is not supported by the BitBox02"
.format(tx_script_type))
# Build BTCOutputType list
outputs = []
for txout in tx.outputs():
assert txout.address
# check for change
if txout.is_change:
my_pubkey, change_pubkey_path = keystore.find_my_pubkey_in_txinout(
txout)
outputs.append(
bitbox02.BTCOutputInternal(
keypath=change_pubkey_path,
value=txout.value,
script_config_index=0,
))
else:
addrtype, payload = bitcoin.address_to_payload(txout.address)
if addrtype == OnchainOutputType.P2PKH:
output_type = bitbox02.btc.P2PKH
elif addrtype == OnchainOutputType.P2SH:
output_type = bitbox02.btc.P2SH
elif addrtype == OnchainOutputType.WITVER0_P2WPKH:
output_type = bitbox02.btc.P2WPKH
elif addrtype == OnchainOutputType.WITVER0_P2WSH:
output_type = bitbox02.btc.P2WSH
elif addrtype == OnchainOutputType.WITVER1_P2TR:
output_type = bitbox02.btc.P2TR
else:
raise UserFacingException(
"Received unsupported output type during transaction signing: {} is not supported by the BitBox02"
.format(addrtype))
outputs.append(
bitbox02.BTCOutputExternal(
output_type=output_type,
output_payload=payload,
value=txout.value,
))
keypath_account = full_path[:-2]
sigs = self.bitbox02_device.btc_sign(
coin,
[
bitbox02.btc.BTCScriptConfigWithKeypath(
script_config=tx_script_type,
keypath=keypath_account,
)
],
inputs=inputs,
outputs=outputs,
locktime=tx.locktime,
version=tx.version,
)
# Fill signatures
if len(sigs) != len(tx.inputs()):
raise Exception(
"Incorrect number of inputs signed.") # Should never occur
signatures = [
bh2u(ecc.der_sig_from_sig_string(x[1])) + "01" for x in sigs
]
tx.update_signatures(signatures)
def __init__(self, window: 'ElectrumWindow', chan_id: bytes):
super().__init__(window)
# initialize instance fields
self.window = window
chan = self.chan = window.wallet.lnworker.channels[chan_id]
self.format = lambda msat: window.format_amount_and_units(msat / 1000)
# connect signals with slots
self.ln_payment_completed.connect(self.do_ln_payment_completed)
self.htlc_added.connect(self.do_htlc_added)
# register callbacks for updating
window.network.register_callback(self.ln_payment_completed.emit,
['ln_payment_completed'])
window.network.register_callback(self.htlc_added.emit, ['htlc_added'])
# set attributes of QDialog
self.setWindowTitle(_('Channel Details'))
self.setMinimumSize(800, 400)
# add layouts
vbox = QtWidgets.QVBoxLayout(self)
form_layout = QtWidgets.QFormLayout(None)
vbox.addLayout(form_layout)
# add form content
form_layout.addRow(_('Node ID:'), SelectableLabel(bh2u(chan.node_id)))
form_layout.addRow(_('Channel ID:'),
SelectableLabel(bh2u(chan.channel_id)))
funding_label_text = f'<a href=click_destination>{chan.funding_outpoint.txid}</a>:{chan.funding_outpoint.output_index}'
form_layout.addRow(_('Funding Outpoint:'),
LinkedLabel(funding_label_text, self.show_tx))
form_layout.addRow(
_('Short Channel ID:'),
SelectableLabel(format_short_channel_id(chan.short_channel_id)))
self.received_label = SelectableLabel()
form_layout.addRow(_('Received (mSAT):'), self.received_label)
self.sent_label = SelectableLabel()
form_layout.addRow(_('Sent (mSAT):'), self.sent_label)
self.htlc_minimum_msat = SelectableLabel(
str(chan.config[REMOTE].htlc_minimum_msat))
form_layout.addRow(_('Minimum HTLC value accepted by peer (mSAT):'),
self.htlc_minimum_msat)
self.max_htlcs = SelectableLabel(
str(chan.config[REMOTE].max_accepted_htlcs))
form_layout.addRow(
_('Maximum number of concurrent HTLCs accepted by peer:'),
self.max_htlcs)
self.max_htlc_value = SelectableLabel(
self.window.format_amount_and_units(
chan.config[REMOTE].max_htlc_value_in_flight_msat / 1000))
form_layout.addRow(
_('Maximum value of in-flight HTLCs accepted by peer:'),
self.max_htlc_value)
self.dust_limit = SelectableLabel(
self.window.format_amount_and_units(
chan.config[REMOTE].dust_limit_sat))
form_layout.addRow(_('Remote dust limit:'), self.dust_limit)
self.reserve = SelectableLabel(
self.window.format_amount_and_units(
chan.config[REMOTE].reserve_sat))
form_layout.addRow(_('Remote channel reserve:'), self.reserve)
# add htlc tree view to vbox (wouldn't scale correctly in QFormLayout)
form_layout.addRow(_('Payments (HTLCs):'), None)
w = QtWidgets.QTreeView(self)
htlc_dict = chan.get_payments()
w.setModel(self.make_model(htlc_dict))
w.header().setSectionResizeMode(0,
QtWidgets.QHeaderView.ResizeToContents)
vbox.addWidget(w)
# initialize sent/received fields
self.update_sent_received()
def __init__(self, window: 'ElectrumWindow', chan_id: bytes):
super().__init__(window)
# initialize instance fields
self.window = window
self.wallet = window.wallet
chan = self.chan = window.wallet.lnworker.channels[chan_id]
self.format_msat = lambda msat: window.format_amount_and_units(msat /
1000)
# connect signals with slots
self.ln_payment_completed.connect(self.do_ln_payment_completed)
self.ln_payment_failed.connect(self.do_ln_payment_failed)
self.state_changed.connect(self.do_state_changed)
self.htlc_added.connect(self.do_htlc_added)
# register callbacks for updating
util.register_callback(self.ln_payment_completed.emit,
['ln_payment_completed'])
util.register_callback(self.ln_payment_failed.emit,
['ln_payment_failed'])
util.register_callback(self.htlc_added.emit, ['htlc_added'])
util.register_callback(self.state_changed.emit, ['channel'])
# set attributes of QDialog
self.setWindowTitle(_('Channel Details'))
self.setMinimumSize(800, 400)
# add layouts
vbox = QtWidgets.QVBoxLayout(self)
vbox.addWidget(QLabel(_('Remote Node ID:')))
remote_id_e = ButtonsLineEdit(bh2u(chan.node_id))
remote_id_e.addCopyButton(self.window.app)
remote_id_e.setReadOnly(True)
vbox.addWidget(remote_id_e)
funding_label_text = f'<a href=click_destination>{chan.funding_outpoint.txid}</a>:{chan.funding_outpoint.output_index}'
vbox.addWidget(QLabel(_('Funding Outpoint:')))
vbox.addWidget(LinkedLabel(funding_label_text, self.show_tx))
form_layout = QtWidgets.QFormLayout(None)
# add form content
form_layout.addRow(
_('Channel ID:'),
SelectableLabel(
f"{chan.channel_id.hex()} (Short: {chan.short_channel_id})"))
form_layout.addRow(_('State:'),
SelectableLabel(chan.get_state_for_GUI()))
self.initiator = 'Local' if chan.constraints.is_initiator else 'Remote'
form_layout.addRow(_('Initiator:'), SelectableLabel(self.initiator))
self.capacity = self.window.format_amount_and_units(
chan.constraints.capacity)
form_layout.addRow(_('Capacity:'), SelectableLabel(self.capacity))
self.can_send_label = SelectableLabel()
self.can_receive_label = SelectableLabel()
form_layout.addRow(_('Can send:'), self.can_send_label)
form_layout.addRow(_('Can receive:'), self.can_receive_label)
self.received_label = SelectableLabel()
form_layout.addRow(_('Received:'), self.received_label)
self.sent_label = SelectableLabel()
form_layout.addRow(_('Sent:'), self.sent_label)
#self.htlc_minimum_msat = SelectableLabel(str(chan.config[REMOTE].htlc_minimum_msat))
#form_layout.addRow(_('Minimum HTLC value accepted by peer (mSAT):'), self.htlc_minimum_msat)
#self.max_htlcs = SelectableLabel(str(chan.config[REMOTE].max_accepted_htlcs))
#form_layout.addRow(_('Maximum number of concurrent HTLCs accepted by peer:'), self.max_htlcs)
#self.max_htlc_value = SelectableLabel(self.window.format_amount_and_units(chan.config[REMOTE].max_htlc_value_in_flight_msat / 1000))
#form_layout.addRow(_('Maximum value of in-flight HTLCs accepted by peer:'), self.max_htlc_value)
self.dust_limit = SelectableLabel(
self.window.format_amount_and_units(
chan.config[REMOTE].dust_limit_sat))
form_layout.addRow(_('Remote dust limit:'), self.dust_limit)
self.remote_reserve = self.window.format_amount_and_units(
chan.config[REMOTE].reserve_sat)
form_layout.addRow(_('Remote reserve:'),
SelectableLabel(self.remote_reserve))
vbox.addLayout(form_layout)
# add htlc tree view to vbox (wouldn't scale correctly in QFormLayout)
vbox.addWidget(QLabel(_('Payments (HTLCs):')))
w = QtWidgets.QTreeView(self)
htlc_dict = chan.get_payments()
w.setModel(self.make_model(htlc_dict))
w.header().setSectionResizeMode(0,
QtWidgets.QHeaderView.ResizeToContents)
vbox.addWidget(w)
vbox.addLayout(Buttons(CloseButton(self)))
# initialize sent/received fields
self.update()
def on_suggest():
remote_nodeid.setText(bh2u(lnworker.suggest_peer() or b''))
remote_nodeid.repaint() # macOS hack for #6269
def new_channel_dialog(self):
lnworker = self.parent.wallet.lnworker
d = WindowModalDialog(self.parent, _('Open Channel'))
vbox = QVBoxLayout(d)
vbox.addWidget(
QLabel(_('Enter Remote Node ID or connection string or invoice')))
local_nodeid = FreezableLineEdit()
local_nodeid.setMinimumWidth(700)
local_nodeid.setText(bh2u(lnworker.node_keypair.pubkey))
local_nodeid.setFrozen(True)
local_nodeid.setCursorPosition(0)
remote_nodeid = QLineEdit()
remote_nodeid.setMinimumWidth(700)
amount_e = BTCAmountEdit(self.parent.get_decimal_point)
# max button
def spend_max():
amount_e.setFrozen(max_button.isChecked())
if not max_button.isChecked():
return
make_tx = self.parent.mktx_for_open_channel('!')
try:
tx = make_tx(None)
except (NotEnoughFunds, NoDynamicFeeEstimates) as e:
max_button.setChecked(False)
amount_e.setFrozen(False)
self.main_window.show_error(str(e))
return
amount = tx.output_value()
amount = min(amount, LN_MAX_FUNDING_SAT)
amount_e.setAmount(amount)
max_button = EnterButton(_("Max"), spend_max)
max_button.setFixedWidth(100)
max_button.setCheckable(True)
suggest_button = QPushButton(d, text=_('Suggest'))
def on_suggest():
remote_nodeid.setText(bh2u(lnworker.suggest_peer() or b''))
remote_nodeid.repaint() # macOS hack for #6269
suggest_button.clicked.connect(on_suggest)
clear_button = QPushButton(d, text=_('Clear'))
def on_clear():
amount_e.setText('')
amount_e.setFrozen(False)
amount_e.repaint() # macOS hack for #6269
remote_nodeid.setText('')
remote_nodeid.repaint() # macOS hack for #6269
max_button.setChecked(False)
max_button.repaint() # macOS hack for #6269
clear_button.clicked.connect(on_clear)
h = QGridLayout()
h.addWidget(QLabel(_('Your Node ID')), 0, 0)
h.addWidget(local_nodeid, 0, 1, 1, 3)
h.addWidget(QLabel(_('Remote Node ID')), 1, 0)
h.addWidget(remote_nodeid, 1, 1, 1, 3)
h.addWidget(suggest_button, 2, 1)
h.addWidget(clear_button, 2, 2)
h.addWidget(QLabel('Amount'), 3, 0)
h.addWidget(amount_e, 3, 1)
h.addWidget(max_button, 3, 2)
vbox.addLayout(h)
ok_button = OkButton(d)
ok_button.setDefault(True)
vbox.addLayout(Buttons(CancelButton(d), ok_button))
if not d.exec_():
return
if max_button.isChecked(
) and amount_e.get_amount() < LN_MAX_FUNDING_SAT:
# if 'max' enabled and amount is strictly less than max allowed,
# that means we have fewer coins than max allowed, and hence we can
# spend all coins
funding_sat = '!'
else:
funding_sat = amount_e.get_amount()
connect_str = str(remote_nodeid.text()).strip()
if not connect_str or not funding_sat:
return
self.parent.open_channel(connect_str, funding_sat, 0)
def __init__(self, window: 'ElectrumWindow', chan_id: bytes):
super().__init__(window)
# initialize instance fields
self.window = window
self.wallet = window.wallet
chan = self.chan = window.wallet.lnworker.channels[chan_id]
self.format_msat = lambda msat: window.format_amount_and_units(msat /
1000)
self.format_sat = lambda sat: window.format_amount_and_units(sat)
# connect signals with slots
self.htlc_fulfilled.connect(self.on_htlc_fulfilled)
self.htlc_failed.connect(self.on_htlc_failed)
self.state_changed.connect(self.do_state_changed)
self.htlc_added.connect(self.on_htlc_added)
# register callbacks for updating
util.register_callback(self.htlc_fulfilled.emit, ['htlc_fulfilled'])
util.register_callback(self.htlc_failed.emit, ['htlc_failed'])
util.register_callback(self.htlc_added.emit, ['htlc_added'])
util.register_callback(self.state_changed.emit, ['channel'])
# set attributes of QDialog
self.setWindowTitle(_('Channel Details'))
self.setMinimumSize(800, 400)
# add layouts
vbox = QtWidgets.QVBoxLayout(self)
vbox.addWidget(QLabel(_('Remote Node ID:')))
remote_id_e = ButtonsLineEdit(bh2u(chan.node_id))
remote_id_e.addCopyButton(self.window.app)
remote_id_e.setReadOnly(True)
vbox.addWidget(remote_id_e)
funding_label_text = f'<a href=click_destination>{chan.funding_outpoint.txid}</a>:{chan.funding_outpoint.output_index}'
vbox.addWidget(QLabel(_('Funding Outpoint:')))
vbox.addWidget(LinkedLabel(funding_label_text, self.show_tx))
hbox_stats = QHBoxLayout()
# channel stats left column
form_layout_left = QtWidgets.QFormLayout(None)
form_layout_left.addRow(
_('Channel ID:'),
WWLabel(
f"{chan.channel_id.hex()} (Short: {chan.short_channel_id})"))
form_layout_left.addRow(_('State:'),
SelectableLabel(chan.get_state_for_GUI()))
self.initiator = 'Local' if chan.constraints.is_initiator else 'Remote'
form_layout_left.addRow(_('Initiator:'),
SelectableLabel(self.initiator))
self.capacity = self.format_sat(chan.get_capacity())
form_layout_left.addRow(_('Capacity:'), SelectableLabel(self.capacity))
self.can_send_label = SelectableLabel()
self.can_receive_label = SelectableLabel()
form_layout_left.addRow(_('Can send:'), self.can_send_label)
form_layout_left.addRow(_('Can receive:'), self.can_receive_label)
#self.htlc_minimum_msat = SelectableLabel(str(chan.config[REMOTE].htlc_minimum_msat))
#form_layout_left.addRow(_('Minimum HTLC value accepted by peer (mSAT):'), self.htlc_minimum_msat)
#self.max_htlcs = SelectableLabel(str(chan.config[REMOTE].max_accepted_htlcs))
#form_layout_left.addRow(_('Maximum number of concurrent HTLCs accepted by peer:'), self.max_htlcs)
#self.max_htlc_value = SelectableLabel(self.format_sat(chan.config[REMOTE].max_htlc_value_in_flight_msat / 1000))
#form_layout_left.addRow(_('Maximum value of in-flight HTLCs accepted by peer:'), self.max_htlc_value)
dust_limit_label = SelectableLabel("{}, {}".format(
self.format_sat(chan.config[REMOTE].dust_limit_sat),
self.format_sat(chan.config[LOCAL].dust_limit_sat),
))
form_layout_left.addRow(_('Dust limit:'), dust_limit_label)
chan_reserve_label = SelectableLabel("{}, {}".format(
self.format_sat(chan.config[REMOTE].reserve_sat),
self.format_sat(chan.config[LOCAL].reserve_sat),
))
form_layout_left.addRow(_('Channel reserve:'), chan_reserve_label)
form_layout_left.addRow(
_('Channel type:'),
SelectableLabel(chan.storage['channel_type'].name_minimal))
hbox_stats.addLayout(form_layout_left, 50)
# vertical line separator
line_separator = QtWidgets.QFrame()
line_separator.setFrameShape(QtWidgets.QFrame.VLine)
line_separator.setFrameShadow(QtWidgets.QFrame.Sunken)
line_separator.setLineWidth(1)
hbox_stats.addWidget(line_separator)
# channel stats right column
form_layout_right = QtWidgets.QFormLayout(None)
self.local_balance_label = SelectableLabel()
self.remote_balance_label = SelectableLabel()
form_layout_right.addRow(_('Local balance:'), self.local_balance_label)
form_layout_right.addRow(_('Remote balance:'),
self.remote_balance_label)
self.received_label = SelectableLabel()
self.sent_label = SelectableLabel()
form_layout_right.addRow(_('Total received so far:'),
self.received_label)
form_layout_right.addRow(_('Total sent so far:'), self.sent_label)
hbox_stats.addLayout(form_layout_right, 50)
vbox.addLayout(hbox_stats)
# add htlc tree view to vbox (wouldn't scale correctly in QFormLayout)
vbox.addWidget(QLabel(_('Payments (HTLCs):')))
w = QtWidgets.QTreeView(self)
htlc_dict = chan.get_payments()
htlc_list = []
for rhash, plist in htlc_dict.items():
for htlc_with_status in plist:
htlc_list.append(htlc_with_status)
w.setModel(self.make_model(htlc_list))
w.header().setSectionResizeMode(0,
QtWidgets.QHeaderView.ResizeToContents)
vbox.addWidget(w)
vbox.addLayout(Buttons(CloseButton(self)))
# initialize sent/received fields
self.update()
