diff --git a/electrum/coinchooser.py b/electrum/coinchooser.py
index 6366f8a87..80d9d668d 100644
--- a/electrum/coinchooser.py
+++ b/electrum/coinchooser.py
@@ -238,7 +238,7 @@ class CoinChooserBase(Logger):
assert is_address(change_addrs[0])
# This takes a count of change outputs and returns a tx fee
- output_weight = 4 * Transaction.estimated_output_size(change_addrs[0])
+ output_weight = 4 * Transaction.estimated_output_size_for_address(change_addrs[0])
fee_estimator_numchange = lambda count: fee_estimator_w(tx_weight + count * output_weight)
change = self._change_outputs(tx, change_addrs, fee_estimator_numchange, dust_threshold)
tx.add_outputs(change)
diff --git a/electrum/gui/qt/main_window.py b/electrum/gui/qt/main_window.py
index 50ebbb8df..f626cc4a2 100644
--- a/electrum/gui/qt/main_window.py
+++ b/electrum/gui/qt/main_window.py
@@ -100,6 +100,7 @@ from .update_checker import UpdateCheck, UpdateCheckThread
from .channels_list import ChannelsList
from .confirm_tx_dialog import ConfirmTxDialog
from .transaction_dialog import PreviewTxDialog
+from .rbf_dialog import BumpFeeDialog, DSCancelDialog
if TYPE_CHECKING:
from . import ElectrumGui
@@ -3264,96 +3265,23 @@ class ElectrumWindow(QMainWindow, MessageBoxMixin, Logger):
return False
return True
- def _rbf_dialog(self, tx: Transaction, func, title, help_text):
+ def bump_fee_dialog(self, tx: Transaction):
txid = tx.txid()
- assert txid
if not isinstance(tx, PartialTransaction):
tx = PartialTransaction.from_tx(tx)
if not self._add_info_to_tx_from_wallet_and_network(tx):
return
- fee = tx.get_fee()
- assert fee is not None
- tx_label = self.wallet.get_label_for_txid(txid)
- tx_size = tx.estimated_size()
- old_fee_rate = fee / tx_size # sat/vbyte
- d = WindowModalDialog(self, title)
- vbox = QVBoxLayout(d)
- vbox.addWidget(WWLabel(help_text))
-
- ok_button = OkButton(d)
- warning_label = WWLabel('\n')
- warning_label.setStyleSheet(ColorScheme.RED.as_stylesheet())
- feerate_e = FeerateEdit(lambda: 0)
- feerate_e.setAmount(max(old_fee_rate * 1.5, old_fee_rate + 1))
- def on_feerate():
- fee_rate = feerate_e.get_amount()
- warning_text = '\n'
- if fee_rate is not None:
- try:
- new_tx = func(fee_rate)
- except Exception as e:
- new_tx = None
- warning_text = str(e).replace('\n',' ')
- else:
- new_tx = None
- ok_button.setEnabled(new_tx is not None)
- warning_label.setText(warning_text)
-
- feerate_e.textChanged.connect(on_feerate)
- def on_slider(dyn, pos, fee_rate):
- fee_slider.activate()
- if fee_rate is not None:
- feerate_e.setAmount(fee_rate / 1000)
- fee_slider = FeeSlider(self, self.config, on_slider)
- fee_combo = FeeComboBox(fee_slider)
- fee_slider.deactivate()
- feerate_e.textEdited.connect(fee_slider.deactivate)
-
- grid = QGridLayout()
- grid.addWidget(QLabel(_('Current Fee') + ':'), 0, 0)
- grid.addWidget(QLabel(self.format_amount(fee) + ' ' + self.base_unit()), 0, 1)
- grid.addWidget(QLabel(_('Current Fee rate') + ':'), 1, 0)
- grid.addWidget(QLabel(self.format_fee_rate(1000 * old_fee_rate)), 1, 1)
- grid.addWidget(QLabel(_('New Fee rate') + ':'), 2, 0)
- grid.addWidget(feerate_e, 2, 1)
- grid.addWidget(fee_slider, 3, 1)
- grid.addWidget(fee_combo, 3, 2)
- vbox.addLayout(grid)
- cb = QCheckBox(_('Final'))
- vbox.addWidget(cb)
- vbox.addWidget(warning_label)
- vbox.addLayout(Buttons(CancelButton(d), ok_button))
- if not d.exec_():
- return
- is_final = cb.isChecked()
- new_fee_rate = feerate_e.get_amount()
- try:
- new_tx = func(new_fee_rate)
- except Exception as e:
- self.show_error(str(e))
- return
- new_tx.set_rbf(not is_final)
- self.show_transaction(new_tx, tx_desc=tx_label)
-
- def bump_fee_dialog(self, tx: Transaction):
- title = _('Bump Fee')
- help_text = _("Increase your transaction's fee to improve its position in mempool.")
- def func(new_fee_rate):
- return self.wallet.bump_fee(
- tx=tx,
- txid=tx.txid(),
- new_fee_rate=new_fee_rate,
- coins=self.get_coins())
- self._rbf_dialog(tx, func, title, help_text)
+ d = BumpFeeDialog(main_window=self, tx=tx, txid=txid)
+ d.run()
def dscancel_dialog(self, tx: Transaction):
- title = _('Cancel transaction')
- help_text = _(
- "Cancel an unconfirmed RBF transaction by double-spending "
- "its inputs back to your wallet with a higher fee.")
- def func(new_fee_rate):
- return self.wallet.dscancel(tx=tx, new_fee_rate=new_fee_rate)
- self._rbf_dialog(tx, func, title, help_text)
+ txid = tx.txid()
+ if not isinstance(tx, PartialTransaction):
+ tx = PartialTransaction.from_tx(tx)
+ if not self._add_info_to_tx_from_wallet_and_network(tx):
+ return
+ d = DSCancelDialog(main_window=self, tx=tx, txid=txid)
+ d.run()
def save_transaction_into_wallet(self, tx: Transaction):
win = self.top_level_window()
diff --git a/electrum/gui/qt/rbf_dialog.py b/electrum/gui/qt/rbf_dialog.py
new file mode 100644
index 000000000..168445269
--- /dev/null
+++ b/electrum/gui/qt/rbf_dialog.py
@@ -0,0 +1,213 @@
+# Copyright (C) 2021 The Electrum developers
+# Distributed under the MIT software license, see the accompanying
+# file LICENCE or http://www.opensource.org/licenses/mit-license.php
+
+from typing import TYPE_CHECKING
+
+from PyQt5.QtWidgets import (QCheckBox, QLabel, QVBoxLayout, QGridLayout, QWidget,
+ QPushButton, QHBoxLayout, QComboBox)
+
+from .amountedit import FeerateEdit
+from .fee_slider import FeeSlider, FeeComboBox
+from .util import (ColorScheme, WindowModalDialog, Buttons,
+ OkButton, WWLabel, CancelButton)
+
+from electrum.i18n import _
+from electrum.transaction import PartialTransaction
+from electrum.wallet import BumpFeeStrategy
+
+if TYPE_CHECKING:
+ from .main_window import ElectrumWindow
+
+
+class _BaseRBFDialog(WindowModalDialog):
+
+ def __init__(
+ self,
+ *,
+ main_window: 'ElectrumWindow',
+ tx: PartialTransaction,
+ txid: str,
+ title: str,
+ help_text: str,
+ ):
+ WindowModalDialog.__init__(self, main_window, title=title)
+ self.window = main_window
+ self.wallet = main_window.wallet
+ self.tx = tx
+ assert txid
+ self.txid = txid
+
+ fee = tx.get_fee()
+ assert fee is not None
+ tx_size = tx.estimated_size()
+ old_fee_rate = fee / tx_size # sat/vbyte
+ vbox = QVBoxLayout(self)
+ vbox.addWidget(WWLabel(help_text))
+
+ ok_button = OkButton(self)
+ self.adv_button = QPushButton(_("Show advanced settings"))
+ warning_label = WWLabel('\n')
+ warning_label.setStyleSheet(ColorScheme.RED.as_stylesheet())
+ self.feerate_e = FeerateEdit(lambda: 0)
+ self.feerate_e.setAmount(max(old_fee_rate * 1.5, old_fee_rate + 1))
+
+ def on_feerate():
+ fee_rate = self.feerate_e.get_amount()
+ warning_text = '\n'
+ if fee_rate is not None:
+ try:
+ new_tx = self.rbf_func(fee_rate)
+ except Exception as e:
+ new_tx = None
+ warning_text = str(e).replace('\n', ' ')
+ else:
+ new_tx = None
+ ok_button.setEnabled(new_tx is not None)
+ warning_label.setText(warning_text)
+
+ self.feerate_e.textChanged.connect(on_feerate)
+
+ def on_slider(dyn, pos, fee_rate):
+ fee_slider.activate()
+ if fee_rate is not None:
+ self.feerate_e.setAmount(fee_rate / 1000)
+
+ fee_slider = FeeSlider(self.window, self.window.config, on_slider)
+ fee_combo = FeeComboBox(fee_slider)
+ fee_slider.deactivate()
+ self.feerate_e.textEdited.connect(fee_slider.deactivate)
+
+ grid = QGridLayout()
+ grid.addWidget(QLabel(_('Current Fee') + ':'), 0, 0)
+ grid.addWidget(QLabel(self.window.format_amount(fee) + ' ' + self.window.base_unit()), 0, 1)
+ grid.addWidget(QLabel(_('Current Fee rate') + ':'), 1, 0)
+ grid.addWidget(QLabel(self.window.format_fee_rate(1000 * old_fee_rate)), 1, 1)
+ grid.addWidget(QLabel(_('New Fee rate') + ':'), 2, 0)
+ grid.addWidget(self.feerate_e, 2, 1)
+ grid.addWidget(fee_slider, 3, 1)
+ grid.addWidget(fee_combo, 3, 2)
+ vbox.addLayout(grid)
+ self._add_advanced_options_cont(vbox)
+ vbox.addWidget(warning_label)
+
+ btns_hbox = QHBoxLayout()
+ btns_hbox.addWidget(self.adv_button)
+ btns_hbox.addStretch(1)
+ btns_hbox.addWidget(CancelButton(self))
+ btns_hbox.addWidget(ok_button)
+ vbox.addLayout(btns_hbox)
+
+ def rbf_func(self, fee_rate) -> PartialTransaction:
+ raise NotImplementedError() # implemented by subclasses
+
+ def _add_advanced_options_cont(self, vbox: QVBoxLayout) -> None:
+ adv_vbox = QVBoxLayout()
+ adv_vbox.setContentsMargins(0, 0, 0, 0)
+ adv_widget = QWidget()
+ adv_widget.setLayout(adv_vbox)
+ adv_widget.setVisible(False)
+ def show_adv_settings():
+ self.adv_button.setEnabled(False)
+ adv_widget.setVisible(True)
+ self.adv_button.clicked.connect(show_adv_settings)
+ self._add_advanced_options(adv_vbox)
+ vbox.addWidget(adv_widget)
+
+ def _add_advanced_options(self, adv_vbox: QVBoxLayout) -> None:
+ self.cb_rbf = QCheckBox(_('Keep Replace-By-Fee enabled'))
+ self.cb_rbf.setChecked(True)
+ adv_vbox.addWidget(self.cb_rbf)
+
+ def run(self) -> None:
+ if not self.exec_():
+ return
+ is_rbf = self.cb_rbf.isChecked()
+ new_fee_rate = self.feerate_e.get_amount()
+ try:
+ new_tx = self.rbf_func(new_fee_rate)
+ except Exception as e:
+ self.window.show_error(str(e))
+ return
+ new_tx.set_rbf(is_rbf)
+ tx_label = self.wallet.get_label_for_txid(self.txid)
+ self.window.show_transaction(new_tx, tx_desc=tx_label)
+ # TODO maybe save tx_label as label for new tx??
+
+
+class BumpFeeDialog(_BaseRBFDialog):
+
+ def __init__(
+ self,
+ *,
+ main_window: 'ElectrumWindow',
+ tx: PartialTransaction,
+ txid: str,
+ ):
+ help_text = _("Increase your transaction's fee to improve its position in mempool.")
+ _BaseRBFDialog.__init__(
+ self,
+ main_window=main_window,
+ tx=tx,
+ txid=txid,
+ title=_('Bump Fee'),
+ help_text=help_text,
+ )
+
+ def rbf_func(self, fee_rate):
+ return self.wallet.bump_fee(
+ tx=self.tx,
+ txid=self.txid,
+ new_fee_rate=fee_rate,
+ coins=self.window.get_coins(),
+ strategies=self.option_index_to_strats[self.strat_combo.currentIndex()],
+ )
+
+ def _add_advanced_options(self, adv_vbox: QVBoxLayout) -> None:
+ self.cb_rbf = QCheckBox(_('Keep Replace-By-Fee enabled'))
+ self.cb_rbf.setChecked(True)
+ adv_vbox.addWidget(self.cb_rbf)
+
+ self.strat_combo = QComboBox()
+ options = [
+ _("decrease change, or add new inputs, or decrease any outputs"),
+ _("decrease change, or decrease any outputs"),
+ _("decrease payment"),
+ ]
+ self.option_index_to_strats = {
+ 0: [BumpFeeStrategy.COINCHOOSER, BumpFeeStrategy.DECREASE_CHANGE],
+ 1: [BumpFeeStrategy.DECREASE_CHANGE],
+ 2: [BumpFeeStrategy.DECREASE_PAYMENT],
+ }
+ self.strat_combo.addItems(options)
+ self.strat_combo.setCurrentIndex(0)
+ strat_hbox = QHBoxLayout()
+ strat_hbox.addWidget(QLabel(_("Strategy") + ":"))
+ strat_hbox.addWidget(self.strat_combo)
+ strat_hbox.addStretch(1)
+ adv_vbox.addLayout(strat_hbox)
+
+
+class DSCancelDialog(_BaseRBFDialog):
+
+ def __init__(
+ self,
+ *,
+ main_window: 'ElectrumWindow',
+ tx: PartialTransaction,
+ txid: str,
+ ):
+ help_text = _(
+ "Cancel an unconfirmed RBF transaction by double-spending "
+ "its inputs back to your wallet with a higher fee.")
+ _BaseRBFDialog.__init__(
+ self,
+ main_window=main_window,
+ tx=tx,
+ txid=txid,
+ title=_('Cancel transaction'),
+ help_text=help_text,
+ )
+
+ def rbf_func(self, fee_rate):
+ return self.wallet.dscancel(tx=self.tx, new_fee_rate=fee_rate)
diff --git a/electrum/tests/test_transaction.py b/electrum/tests/test_transaction.py
index af8b747d7..575d65ae6 100644
--- a/electrum/tests/test_transaction.py
+++ b/electrum/tests/test_transaction.py
@@ -126,7 +126,7 @@ class TestTransaction(ElectrumTestCase):
self.assertEqual(tx.estimated_size(), 193)
def test_estimated_output_size(self):
- estimated_output_size = transaction.Transaction.estimated_output_size
+ estimated_output_size = transaction.Transaction.estimated_output_size_for_address
self.assertEqual(estimated_output_size('14gcRovpkCoGkCNBivQBvw7eso7eiNAbxG'), 34)
self.assertEqual(estimated_output_size('35ZqQJcBQMZ1rsv8aSuJ2wkC7ohUCQMJbT'), 32)
self.assertEqual(estimated_output_size('bc1q3g5tmkmlvxryhh843v4dz026avatc0zzr6h3af'), 31)
diff --git a/electrum/tests/test_wallet_vertical.py b/electrum/tests/test_wallet_vertical.py
index 4c6e9db6a..8b0485302 100644
--- a/electrum/tests/test_wallet_vertical.py
+++ b/electrum/tests/test_wallet_vertical.py
@@ -10,7 +10,8 @@ from electrum import storage, bitcoin, keystore, bip32, wallet
from electrum import Transaction
from electrum import SimpleConfig
from electrum.address_synchronizer import TX_HEIGHT_UNCONFIRMED, TX_HEIGHT_UNCONF_PARENT
-from electrum.wallet import sweep, Multisig_Wallet, Standard_Wallet, Imported_Wallet, restore_wallet_from_text, Abstract_Wallet
+from electrum.wallet import (sweep, Multisig_Wallet, Standard_Wallet, Imported_Wallet,
+ restore_wallet_from_text, Abstract_Wallet, BumpFeeStrategy)
from electrum.util import bfh, bh2u, create_and_start_event_loop
from electrum.transaction import TxOutput, Transaction, PartialTransaction, PartialTxOutput, PartialTxInput, tx_from_any
from electrum.mnemonic import seed_type
@@ -937,6 +938,14 @@ class TestWalletSending(TestCaseForTestnet):
self._bump_fee_when_not_all_inputs_are_ismine_subcase_all_outputs_are_ismine(
simulate_moving_txs=simulate_moving_txs,
config=config)
+ with self.subTest(msg="_bump_fee_p2wpkh_decrease_payment", simulate_moving_txs=simulate_moving_txs):
+ self._bump_fee_p2wpkh_decrease_payment(
+ simulate_moving_txs=simulate_moving_txs,
+ config=config)
+ with self.subTest(msg="_bump_fee_p2wpkh_decrease_payment_batch", simulate_moving_txs=simulate_moving_txs):
+ self._bump_fee_p2wpkh_decrease_payment_batch(
+ simulate_moving_txs=simulate_moving_txs,
+ config=config)
def _bump_fee_p2pkh_when_there_is_a_change_address(self, *, simulate_moving_txs, config):
wallet = self.create_standard_wallet_from_seed('fold object utility erase deputy output stadium feed stereo usage modify bean',
@@ -1044,6 +1053,89 @@ class TestWalletSending(TestCaseForTestnet):
wallet.receive_tx_callback(tx.txid(), tx, TX_HEIGHT_UNCONFIRMED)
self.assertEqual((0, 461600, 0), wallet.get_balance())
+ def _bump_fee_p2wpkh_decrease_payment(self, *, simulate_moving_txs, config):
+ wallet = self.create_standard_wallet_from_seed('leader company camera enlist crash sleep insane aware anger hole hammer label',
+ config=config)
+
+ # bootstrap wallet
+ funding_tx = Transaction('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')
+ funding_txid = funding_tx.txid()
+ self.assertEqual('dd0bf0d1563cd588b4c93cc1a9623c051ddb1c4f4581cf8ef43cfd27f031f246', funding_txid)
+ wallet.receive_tx_callback(funding_txid, funding_tx, TX_HEIGHT_UNCONFIRMED)
+
+ orig_rbf_tx = Transaction('0200000000010146f231f027fd3cf48ecf81454f1cdb1d053c62a9c13cc9b488d53c56d1f00bdd0100000000fdffffff02c8af000000000000160014999a95482213a896c72a251b6cc9f3d137b0a45850c3000000000000160014ea76d391236726af7d7a9c10abe600129154eb5a02473044022076d298537b524a926a8fadad0e9ded5868c8f4cf29246048f76f00eb4afa56310220739ad9e0417e97ce03fad98a454b4977972c2805cef37bfa822c6d6c56737c870121024196fb7b766ac987a08b69a5e108feae8513b7e72bc9e47899e27b36100f2af4d48a1d00')
+ orig_rbf_txid = orig_rbf_tx.txid()
+ self.assertEqual('db2f77709a4a04417b3a45838c21470877fe7c182a4f81005a21ce1315c6a5e6', orig_rbf_txid)
+ wallet.receive_tx_callback(orig_rbf_txid, orig_rbf_tx, TX_HEIGHT_UNCONFIRMED)
+
+ # bump tx
+ tx = wallet.bump_fee(
+ tx=tx_from_any(orig_rbf_tx.serialize()),
+ new_fee_rate=60,
+ strategies=[BumpFeeStrategy.DECREASE_PAYMENT],
+ )
+ tx.locktime = 1936085
+ tx.version = 2
+ if simulate_moving_txs:
+ partial_tx = tx.serialize_as_bytes().hex()
+ self.assertEqual("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",
+ partial_tx)
+ tx = tx_from_any(partial_tx) # simulates moving partial txn between cosigners
+ self.assertFalse(tx.is_complete())
+
+ wallet.sign_transaction(tx, password=None)
+ self.assertTrue(tx.is_complete())
+ self.assertTrue(tx.is_segwit())
+ tx_copy = tx_from_any(tx.serialize())
+ self.assertEqual('0200000000010146f231f027fd3cf48ecf81454f1cdb1d053c62a9c13cc9b488d53c56d1f00bdd0100000000fdffffff02c8af000000000000160014999a95482213a896c72a251b6cc9f3d137b0a458ccb5000000000000160014ea76d391236726af7d7a9c10abe600129154eb5a024730440220063a2d330f0d659b3f686cc291722a87cc37371d3520c946e74da8dbbd4c57e00220604b0f387754988f71af47db78263698a513173e8ce3b27a696b9e3954ba757b0121024196fb7b766ac987a08b69a5e108feae8513b7e72bc9e47899e27b36100f2af4d58a1d00',
+ str(tx_copy))
+ self.assertEqual('6b03c00f47cb145ffb632c3ce54dece29b9a980949ef5c574321f7fc83fa2238', tx_copy.txid())
+ self.assertEqual('cb1f123231a3de5b02babddb43208f0273cb0df8addd4275583234eb50c7a87d', tx_copy.wtxid())
+
+ wallet.receive_tx_callback(tx.txid(), tx, TX_HEIGHT_UNCONFIRMED)
+ self.assertEqual((0, 45000, 0), wallet.get_balance())
+
+ def _bump_fee_p2wpkh_decrease_payment_batch(self, *, simulate_moving_txs, config):
+ wallet = self.create_standard_wallet_from_seed('leader company camera enlist crash sleep insane aware anger hole hammer label',
+ config=config)
+
+ # bootstrap wallet
+ funding_tx = Transaction('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')
+ funding_txid = funding_tx.txid()
+ self.assertEqual('dd0bf0d1563cd588b4c93cc1a9623c051ddb1c4f4581cf8ef43cfd27f031f246', funding_txid)
+ wallet.receive_tx_callback(funding_txid, funding_tx, TX_HEIGHT_UNCONFIRMED)
+
+ orig_rbf_tx = Transaction('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')
+ orig_rbf_txid = orig_rbf_tx.txid()
+ self.assertEqual('9e0c7d890053c47c7cd653be984bc4b9a5dab8acf9a6ae075a00113d3077ad74', orig_rbf_txid)
+ wallet.receive_tx_callback(orig_rbf_txid, orig_rbf_tx, TX_HEIGHT_UNCONFIRMED)
+
+ # bump tx
+ tx = wallet.bump_fee(
+ tx=tx_from_any(orig_rbf_tx.serialize()),
+ new_fee_rate=60,
+ strategies=[BumpFeeStrategy.DECREASE_PAYMENT],
+ )
+ tx.locktime = 1936095
+ tx.version = 2
+ if simulate_moving_txs:
+ partial_tx = tx.serialize_as_bytes().hex()
+ self.assertEqual("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",
+ partial_tx)
+ tx = tx_from_any(partial_tx) # simulates moving partial txn between cosigners
+ self.assertFalse(tx.is_complete())
+
+ wallet.sign_transaction(tx, password=None)
+ self.assertTrue(tx.is_complete())
+ self.assertTrue(tx.is_segwit())
+ tx_copy = tx_from_any(tx.serialize())
+ self.assertEqual('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',
+ str(tx_copy))
+ self.assertEqual('bc86f4f14fea5305b197c02ae7b0d6b04c5f49144d9ad37c9f64ec0ec6d34594', tx_copy.txid())
+ self.assertEqual('368e4c0429b38e66ac64ac9dbb66145c9f28dfaf2fad60f6424db32c379a12da', tx_copy.wtxid())
+
+ wallet.receive_tx_callback(tx.txid(), tx, TX_HEIGHT_UNCONFIRMED)
+ self.assertEqual((0, 18700, 0), wallet.get_balance())
@mock.patch.object(wallet.Abstract_Wallet, 'save_db')
def test_cpfp_p2pkh(self, mock_save_db):
diff --git a/electrum/transaction.py b/electrum/transaction.py
index 1d871fe32..3a7fe5808 100644
--- a/electrum/transaction.py
+++ b/electrum/transaction.py
@@ -892,11 +892,18 @@ class Transaction:
return 4 * input_size + witness_size
@classmethod
- def estimated_output_size(cls, address):
+ def estimated_output_size_for_address(cls, address: str) -> int:
"""Return an estimate of serialized output size in bytes."""
script = bitcoin.address_to_script(address)
- # 8 byte value + 1 byte script len + script
- return 9 + len(script) // 2
+ return cls.estimated_output_size_for_script(script)
+
+ @classmethod
+ def estimated_output_size_for_script(cls, script: str) -> int:
+ """Return an estimate of serialized output size in bytes."""
+ # 8 byte value + varint script len + script
+ script_len = len(script) // 2
+ var_int_len = len(var_int(script_len)) // 2
+ return 8 + var_int_len + script_len
@classmethod
def virtual_size_from_weight(cls, weight):
diff --git a/electrum/wallet.py b/electrum/wallet.py
index 47524d24a..e5a6bbd81 100644
--- a/electrum/wallet.py
+++ b/electrum/wallet.py
@@ -44,6 +44,7 @@ from typing import TYPE_CHECKING, List, Optional, Tuple, Union, NamedTuple, Sequ
from abc import ABC, abstractmethod
import itertools
import threading
+import enum
from aiorpcx import TaskGroup
@@ -97,6 +98,12 @@ TX_STATUS = [
]
+class BumpFeeStrategy(enum.Enum):
+ COINCHOOSER = enum.auto()
+ DECREASE_CHANGE = enum.auto()
+ DECREASE_PAYMENT = enum.auto()
+
+
async def _append_utxos_to_inputs(*, inputs: List[PartialTxInput], network: 'Network',
pubkey: str, txin_type: str, imax: int) -> None:
if txin_type in ('p2pkh', 'p2wpkh', 'p2wpkh-p2sh'):
@@ -1439,6 +1446,7 @@ class Abstract_Wallet(AddressSynchronizer, ABC):
txid: str = None,
new_fee_rate: Union[int, float, Decimal],
coins: Sequence[PartialTxInput] = None,
+ strategies: Sequence[BumpFeeStrategy] = None,
) -> PartialTransaction:
"""Increase the miner fee of 'tx'.
'new_fee_rate' is the target min rate in sat/vbyte
@@ -1465,29 +1473,42 @@ class Abstract_Wallet(AddressSynchronizer, ABC):
old_fee_rate = old_fee / old_tx_size # sat/vbyte
if new_fee_rate <= old_fee_rate:
raise CannotBumpFee(_("The new fee rate needs to be higher than the old fee rate."))
- try:
- # method 1: keep all inputs, keep all not is_mine outputs,
- # allow adding new inputs
- tx_new = self._bump_fee_through_coinchooser(
- tx=tx,
- txid=txid,
- new_fee_rate=new_fee_rate,
- coins=coins,
- )
- method_used = 1
- except CannotBumpFee:
- # method 2: keep all inputs, no new inputs are added,
- # allow decreasing and removing outputs (change is decreased first)
- # This is less "safe" as it might end up decreasing e.g. a payment to a merchant;
- # but e.g. if the user has sent "Max" previously, this is the only way to RBF.
- tx_new = self._bump_fee_through_decreasing_outputs(
- tx=tx, new_fee_rate=new_fee_rate)
- method_used = 2
+
+ if not strategies:
+ strategies = [BumpFeeStrategy.COINCHOOSER, BumpFeeStrategy.DECREASE_CHANGE]
+ tx_new = None
+ exc = None
+ for strat in strategies:
+ try:
+ if strat == BumpFeeStrategy.COINCHOOSER:
+ tx_new = self._bump_fee_through_coinchooser(
+ tx=tx,
+ txid=txid,
+ new_fee_rate=new_fee_rate,
+ coins=coins,
+ )
+ elif strat == BumpFeeStrategy.DECREASE_CHANGE:
+ tx_new = self._bump_fee_through_decreasing_change(
+ tx=tx, new_fee_rate=new_fee_rate)
+ elif strat == BumpFeeStrategy.DECREASE_PAYMENT:
+ tx_new = self._bump_fee_through_decreasing_payment(
+ tx=tx, new_fee_rate=new_fee_rate)
+ else:
+ raise NotImplementedError(f"unexpected strategy: {strat}")
+ except CannotBumpFee as e:
+ exc = e
+ else:
+ strat_used = strat
+ break
+ if tx_new is None:
+ assert exc
+ raise exc # all strategies failed, re-raise last exception
+
target_min_fee = new_fee_rate * tx_new.estimated_size()
actual_fee = tx_new.get_fee()
if actual_fee + 1 < target_min_fee:
raise CannotBumpFee(
- f"bump_fee fee target was not met (method: {method_used}). "
+ f"bump_fee fee target was not met (strategy: {strat_used}). "
f"got {actual_fee}, expected >={target_min_fee}. "
f"target rate was {new_fee_rate}")
tx_new.locktime = get_locktime_for_new_transaction(self.network)
@@ -1503,6 +1524,12 @@ class Abstract_Wallet(AddressSynchronizer, ABC):
new_fee_rate: Union[int, Decimal],
coins: Sequence[PartialTxInput] = None,
) -> PartialTransaction:
+ """Increase the miner fee of 'tx'.
+
+ - keeps all inputs
+ - keeps all not is_mine outputs,
+ - allows adding new inputs
+ """
assert txid
tx = copy.deepcopy(tx)
tx.add_info_from_wallet(self)
@@ -1549,12 +1576,21 @@ class Abstract_Wallet(AddressSynchronizer, ABC):
except NotEnoughFunds as e:
raise CannotBumpFee(e)
- def _bump_fee_through_decreasing_outputs(
+ def _bump_fee_through_decreasing_change(
self,
*,
tx: PartialTransaction,
new_fee_rate: Union[int, Decimal],
) -> PartialTransaction:
+ """Increase the miner fee of 'tx'.
+
+ - keeps all inputs
+ - no new inputs are added
+ - allows decreasing and removing outputs (change is decreased first)
+ This is less "safe" than "coinchooser" method as it might end up decreasing
+ e.g. a payment to a merchant; but e.g. if the user has sent "Max" previously,
+ this is the only way to RBF.
+ """
tx = copy.deepcopy(tx)
tx.add_info_from_wallet(self)
assert tx.get_fee() is not None
@@ -1594,6 +1630,67 @@ class Abstract_Wallet(AddressSynchronizer, ABC):
return PartialTransaction.from_io(inputs, outputs)
+ def _bump_fee_through_decreasing_payment(
+ self,
+ *,
+ tx: PartialTransaction,
+ new_fee_rate: Union[int, Decimal],
+ ) -> PartialTransaction:
+ """Increase the miner fee of 'tx'.
+
+ - keeps all inputs
+ - no new inputs are added
+ - decreases payment outputs (not change!). Each non-ismine output is decreased
+ proportionally to their byte-size.
+ """
+ tx = copy.deepcopy(tx)
+ tx.add_info_from_wallet(self)
+ assert tx.get_fee() is not None
+ inputs = tx.inputs()
+ outputs = tx.outputs()
+
+ # select non-ismine outputs
+ s = [(idx, out) for (idx, out) in enumerate(outputs)
+ if not self.is_mine(out.address)]
+ # exempt 2fa fee output if present
+ x_fee = run_hook('get_tx_extra_fee', self, tx)
+ if x_fee:
+ x_fee_address, x_fee_amount = x_fee
+ s = [(idx, out) for (idx, out) in s if out.address != x_fee_address]
+ if not s:
+ raise CannotBumpFee("Cannot find payment output")
+
+ del_out_idxs = set()
+ tx_size = tx.estimated_size()
+ cur_fee = tx.get_fee()
+ # Main loop. Each iteration decreases value of all selected outputs.
+ # The number of iterations is bounded by len(s) as only the final iteration
+ # can *not remove* any output.
+ for __ in range(len(s) + 1):
+ target_fee = int(math.ceil(tx_size * new_fee_rate))
+ delta_total = target_fee - cur_fee
+ if delta_total <= 0:
+ break
+ out_size_total = sum(Transaction.estimated_output_size_for_script(out.scriptpubkey.hex())
+ for (idx, out) in s if idx not in del_out_idxs)
+ for idx, out in s:
+ out_size = Transaction.estimated_output_size_for_script(out.scriptpubkey.hex())
+ delta = int(math.ceil(delta_total * out_size / out_size_total))
+ if out.value - delta >= self.dust_threshold():
+ new_output_value = out.value - delta
+ assert isinstance(new_output_value, int)
+ outputs[idx].value = new_output_value
+ cur_fee += delta
+ else: # remove output
+ tx_size -= out_size
+ cur_fee += out.value
+ del_out_idxs.add(idx)
+ if delta_total > 0:
+ raise CannotBumpFee(_('Could not find suitable outputs'))
+
+ outputs = [out for (idx, out) in enumerate(outputs) if idx not in del_out_idxs]
+ return PartialTransaction.from_io(inputs, outputs)
+
def cpfp(self, tx: Transaction, fee: int) -> Optional[PartialTransaction]:
txid = tx.txid()
for i, o in enumerate(tx.outputs()):