forked from bitcoinafterlife/bal-electrum-plugin
kaibot
6d568bf304
When deleting old transactions and clicking Check, task_phase1 would fail with 'NoneType object has no attribute get' error in WillItem.normalize_locktime. Root cause: In Will.normalize_will (will.py:150), the parameter others_inputs defaults to None. At line 151, a local variable 'others_input' is created with a safe default value (empty dict). However, lines 179 and 184 still used the original 'others_inputs' parameter instead of the safe local variable, causing the error when calling .get() on None. Fix: Use the safe 'others_input' variable instead of the raw parameter in lines 179 and 184. Also added: - Traceback logging to on_error_phase1 so future errors include full call stack - Debug logging in update_all to log willitems state before processing - Comprehensive test (test_e5_build_with_real_wallet_heirs_and_utxos) that reproduces the exact scenario from the user's karen7 wallet
1232 lines
48 KiB
Python
1232 lines
48 KiB
Python
"""
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|
bal.core.will
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=============
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|
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The "will": the set of time-locked inheritance transactions plus all the logic
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to keep it coherent over time.
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Two classes live here:
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* :class:`Will` - a namespace of static methods operating on a *will*
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dictionary (mapping ``txid -> WillItem``): building
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the parent/child tree, anticipating locktimes,
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detecting replaced/invalidated/confirmed entries,
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validating that the will still matches the heirs and
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will-executors, and building an "invalidation"
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transaction.
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* :class:`WillItem` - a single will transaction together with its status
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flags, heirs, will-executor and fee.
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Separation of concerns
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-----------------------
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The original ``WillItem`` carried a ``get_color()`` method returning hard-coded
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hex colours for the GUI. That was pure presentation living inside the core
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logic, so it has been **moved** to ``bal.gui.qt.theme.status_color(will_item)``.
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The status flags themselves (the source of truth) stay here; only the mapping
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"status -> colour" now lives in the GUI layer. No behaviour changed.
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"""
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import copy
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from datetime import datetime, timezone
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from electrum.i18n import _
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from electrum.logging import Logger, get_logger
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from electrum.transaction import (
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PartialTransaction,
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PartialTxInput,
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PartialTxOutput,
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Transaction,
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TxOutpoint,
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tx_from_any,
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)
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from electrum.util import (
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bfh,
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)
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from .util import Util
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from .willexecutors import Willexecutors
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MIN_LOCKTIME = 1
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MIN_BLOCK = 1
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_logger = get_logger(__name__)
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|
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class Will:
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@staticmethod
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def get_children(will, willid):
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out = []
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for _id in will:
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inputs = will[_id].tx.inputs()
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for idi in range(0, len(inputs)):
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_input = inputs[idi]
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if _input.prevout.txid.hex() == willid:
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out.append([_id, idi, _input.prevout.out_idx])
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return out
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# build a tree with parent transactions
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@staticmethod
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def add_willtree(will):
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for willid in will:
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will[willid].children = Will.get_children(will, willid)
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for child in will[willid].children:
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if not will[child[0]].father:
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will[child[0]].father = willid
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# return a list of will sorted by locktime
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@staticmethod
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def get_sorted_will(will):
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return sorted(will.items(), key=lambda x: x[1]["tx"].locktime)
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@staticmethod
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def only_valid(will):
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for k, v in will.items():
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if v.get_status("VALID"):
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yield k
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@staticmethod
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def needs_server_check(w):
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"""Return True if ``w`` should be queried on its will-executor server
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when the user presses Check (or on Electrum close).
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A will is queried only when it is VALID, has a will-executor assigned,
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was actually PUSHED (sent), and is not yet CHECKED. The ``PUSHED``
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condition is essential: querying the server for a will that was *never*
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sent would make the server (correctly) answer "I don't have this tx",
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which ``WillItem.set_check_willexecutor`` then records as CHECK_FAIL.
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A freshly signed-but-not-sent will would therefore turn red, even though
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it is merely "signed, not sent" (which must stay blue / #2bc8ed, as in
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the original BAL behaviour). Restricting the check to PUSHED wills
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matches the original ``check()`` logic and avoids that false failure.
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"""
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return bool(
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w.get_status("VALID")
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and w.we
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and w.get_status("PUSHED")
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and not w.get_status("CHECKED")
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)
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@staticmethod
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def search_equal_tx(will, tx, wid):
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for w in will:
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if w != wid and not tx.to_json() != will[w]["tx"].to_json():
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if will[w]["tx"].txid() != tx.txid():
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if Util.cmp_txs(will[w]["tx"], tx):
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return will[w]["tx"]
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return False
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@staticmethod
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def get_tx_from_any(x):
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try:
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a = str(x)
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return tx_from_any(a)
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except Exception as e:
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raise e
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return x
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@staticmethod
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def add_info_from_will(will, wid, wallet):
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if isinstance(will[wid].tx, str):
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will[wid].tx = Will.get_tx_from_any(will[wid].tx)
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if wallet:
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will[wid].tx.add_info_from_wallet(wallet)
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for txin in will[wid].tx.inputs():
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txid = txin.prevout.txid.hex()
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if txid in will:
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change = will[txid].tx.outputs()[txin.prevout.out_idx]
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txin._trusted_value_sats = change.value
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try:
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txin.script_descriptor = change.script_descriptor
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except Exception:
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pass
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txin.is_mine = True
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txin._TxInput__address = change.address
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txin._TxInput__scriptpubkey = change.scriptpubkey
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txin._TxInput__value_sats = change.value
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txin._trusted_value_sats = change.value
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@staticmethod
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def normalize_will(will, wallet=None, others_inputs=None):
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others_input = others_inputs if others_inputs is not None else {}
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to_delete = []
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to_add = {}
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# add info from wallet
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willitems = {}
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for wid in will:
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Will.add_info_from_will(will, wid, wallet)
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willitems[wid] = WillItem(will[wid])
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will = willitems
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errors = {}
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for wid in will:
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txid = will[wid].tx.txid()
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if txid is None:
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_logger.error("##########")
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_logger.error(wid)
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_logger.error(will[wid])
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_logger.error(will[wid].tx.to_json())
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_logger.error("txid is none")
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will[wid].set_status("ERROR", True)
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errors[wid] = will[wid]
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continue
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if txid != wid:
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outputs = will[wid].tx.outputs()
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ow = will[wid]
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ow.normalize_locktime(others_input)
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will[wid] = WillItem(ow.to_dict())
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for i in range(0, len(outputs)):
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Will.change_input(
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will, wid, i, outputs[i], others_input, to_delete, to_add
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)
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to_delete.append(wid)
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to_add[ow.tx.txid()] = ow.to_dict()
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# for eid, err in errors.items():
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# new_txid = err.tx.txid()
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for k, w in to_add.items():
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will[k] = w
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for wid in to_delete:
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if wid in will:
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del will[wid]
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@staticmethod
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def new_input(txid, idx, change):
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prevout = TxOutpoint(txid=bfh(txid), out_idx=idx)
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inp = PartialTxInput(prevout=prevout)
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inp._trusted_value_sats = change.value
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inp.is_mine = True
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inp._TxInput__address = change.address
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inp._TxInput__scriptpubkey = change.scriptpubkey
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inp._TxInput__value_sats = change.value
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return inp
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@staticmethod
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def check_anticipate(ow: "WillItem", nw: "WillItem"):
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anticipate = Util.anticipate_locktime(ow.tx.locktime, days=1)
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if int(nw.tx.locktime) >= int(anticipate):
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if Util.cmp_heirs_by_values(
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ow.heirs, nw.heirs, [0, 1], exclude_willexecutors=True
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):
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if nw.we and ow.we:
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if ow.we["url"] == nw.we["url"]:
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if int(ow.we["base_fee"]) > int(nw.we["base_fee"]):
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return anticipate
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else:
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if int(ow.tx_fees) != int(nw.tx_fees):
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return anticipate
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else:
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ow.tx.locktime
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else:
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ow.tx.locktime
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else:
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if nw.we == ow.we:
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if not Util.cmp_heirs_by_values(ow.heirs, nw.heirs, [0, 3]):
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return anticipate
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else:
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return ow.tx.locktime
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else:
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return ow.tx.locktime
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else:
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return anticipate
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return 4294967295 + 1
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@staticmethod
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def change_input(will, otxid, idx, change, others_inputs, to_delete, to_append):
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ow = will[otxid]
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ntxid = ow.tx.txid()
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if otxid != ntxid:
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for wid in will:
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w = will[wid]
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inputs = w.tx.inputs()
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outputs = w.tx.outputs()
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found = False
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old_txid = w.tx.txid()
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# ntx = None
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for i in range(0, len(inputs)):
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if (
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inputs[i].prevout.txid.hex() == otxid
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and inputs[i].prevout.out_idx == idx
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):
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|
if isinstance(w.tx, Transaction):
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|
will[wid].tx = PartialTransaction.from_tx(w.tx)
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will[wid].tx.set_rbf(True)
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will[wid].tx._inputs[i] = Will.new_input(wid, idx, change)
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found = True
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if found:
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pass
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new_txid = will[wid].tx.txid()
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if old_txid != new_txid:
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to_delete.append(old_txid)
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to_append[new_txid] = will[wid]
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outputs = will[wid].tx.outputs()
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for i in range(0, len(outputs)):
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Will.change_input(
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will,
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wid,
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i,
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outputs[i],
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others_inputs,
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to_delete,
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to_append,
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)
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@staticmethod
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def get_all_inputs(will, only_valid=False):
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all_inputs = {}
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for w, wi in will.items():
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if not only_valid or wi.get_status("VALID"):
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inputs = wi.tx.inputs()
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for i in inputs:
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prevout_str = i.prevout.to_str()
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inp = [w, will[w], i]
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if prevout_str not in all_inputs:
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all_inputs[prevout_str] = [inp]
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else:
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all_inputs[prevout_str].append(inp)
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return all_inputs
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|
|
@staticmethod
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def get_all_inputs_min_locktime(all_inputs):
|
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all_inputs_min_locktime = {}
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|
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for i, values in all_inputs.items():
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min_locktime = min(values, key=lambda x: x[1].tx.locktime)[1].tx.locktime
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for w in values:
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if w[1].tx.locktime == min_locktime:
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if i not in all_inputs_min_locktime:
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all_inputs_min_locktime[i] = [w]
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else:
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|
all_inputs_min_locktime[i].append(w)
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|
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return all_inputs_min_locktime
|
|
|
|
@staticmethod
|
|
def search_anticipate_rec(will, old_inputs):
|
|
redo = False
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|
to_delete = []
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|
to_append = {}
|
|
new_inputs = Will.get_all_inputs(will, only_valid=True)
|
|
for nid, nwi in will.items():
|
|
if nwi.search_anticipate(new_inputs):
|
|
if nid != nwi.tx.txid():
|
|
redo = True
|
|
to_delete.append(nid)
|
|
to_append[nwi.tx.txid()] = nwi
|
|
outputs = nwi.tx.outputs()
|
|
for i in range(0, len(outputs)):
|
|
Will.change_input(
|
|
will, nid, i, outputs[i], new_inputs, to_delete, to_append
|
|
)
|
|
if nwi.search_anticipate(old_inputs):
|
|
if nid != nwi.tx.txid():
|
|
redo = True
|
|
|
|
to_delete.append(nid)
|
|
to_append[nwi.tx.txid()] = nwi
|
|
outputs = nwi.tx.outputs()
|
|
for i in range(0, len(outputs)):
|
|
Will.change_input(
|
|
will, nid, i, outputs[i], new_inputs, to_delete, to_append
|
|
)
|
|
|
|
for w in to_delete:
|
|
try:
|
|
del will[w]
|
|
except Exception:
|
|
pass
|
|
for k, w in to_append.items():
|
|
will[k] = w
|
|
if redo:
|
|
|
|
Will.search_anticipate_rec(will, old_inputs)
|
|
|
|
@staticmethod
|
|
def _same_heirs(old_heirs, new_heirs):
|
|
"""Return True if two heir maps describe the SAME inheritance.
|
|
|
|
Used by update_will (Option A) to decide whether a rebuilt transaction
|
|
that kept the same txid can safely reuse the old (possibly already
|
|
signed) WillItem, or whether the heirs changed and the item must be
|
|
rebuilt as unsigned.
|
|
|
|
Two heir maps are considered equal when they have exactly the same heir
|
|
names (keys) and, for each heir, the same destination ADDRESS, the same
|
|
requested AMOUNT and the same LOCKTIME. Internal will-executor
|
|
pseudo-heirs (keys starting with the reserved ``w!ll3x3c"`` prefix) are
|
|
ignored, exactly as in check_willexecutors_and_heirs, because they are
|
|
bookkeeping entries and not real heirs.
|
|
|
|
Args:
|
|
old_heirs: heirs dict stored in the old (existing) WillItem.
|
|
new_heirs: heirs dict of the freshly rebuilt WillItem.
|
|
|
|
Returns:
|
|
bool: True if the real heirs are identical, False otherwise.
|
|
"""
|
|
def _real_heirs(heirs):
|
|
# Keep only the real heirs and only the fields that define the
|
|
# inheritance (address/amount/locktime), so cosmetic or derived
|
|
# fields can never trigger a spurious "heirs changed" rebuild.
|
|
out = {}
|
|
for name, entry in (heirs or {}).items():
|
|
if str(name)[:9] == 'w!ll3x3c"':
|
|
continue
|
|
# Heir entry layout (see heirs.py): [0]=address, [1]=amount,
|
|
# [2]=locktime. We compare exactly the same fields that
|
|
# check_willexecutors_and_heirs uses (their[0], their[1],
|
|
# their[2]); index literals are used here to avoid importing the
|
|
# heirs module (which would create a circular import).
|
|
out[name] = (entry[0], entry[1], entry[2])
|
|
return out
|
|
|
|
return _real_heirs(old_heirs) == _real_heirs(new_heirs)
|
|
|
|
@staticmethod
|
|
def update_will(old_will, new_will):
|
|
all_old_inputs = Will.get_all_inputs(old_will, only_valid=True)
|
|
# all_inputs_min_locktime = Will.get_all_inputs_min_locktime(all_old_inputs)
|
|
# all_new_inputs = Will.get_all_inputs(new_will)
|
|
# check if the new input is already spent by other transaction
|
|
# if it is use the same locktime, or anticipate.
|
|
Will.search_anticipate_rec(new_will, all_old_inputs)
|
|
other_inputs = Will.get_all_inputs(old_will, {})
|
|
try:
|
|
Will.normalize_will(new_will, others_inputs=other_inputs)
|
|
except Exception as e:
|
|
raise e
|
|
|
|
for oid in Will.only_valid(old_will):
|
|
if oid in new_will:
|
|
new_heirs = new_will[oid].heirs
|
|
new_we = new_will[oid].we
|
|
|
|
# OPTION A (heir-change full rebuild, user-approved):
|
|
#
|
|
# Historically, whenever a rebuilt transaction kept the SAME
|
|
# txid as an old one, we REUSED the old WillItem object (which
|
|
# may already be signed/COMPLETE/PUSHED) and only copied the new
|
|
# heirs/will-executor onto it. That silently preserved the
|
|
# "already signed" status even when the HEIRS had actually
|
|
# changed (e.g. an heir was deleted, so amounts must be
|
|
# recomputed and the whole wallet re-swept). The downstream
|
|
# have_to_sign check then saw the item as COMPLETE and reported
|
|
# "Nothing to do", so the new will was never signed/broadcast
|
|
# (bugs E/F/K).
|
|
#
|
|
# We now reuse the old item ONLY when the heirs are IDENTICAL.
|
|
# If the heir set/values changed, we keep the freshly built
|
|
# item (status "New", not COMPLETE) so it is correctly detected
|
|
# as needing a new signature and broadcast. The will-executor is
|
|
# still refreshed in both cases.
|
|
if Will._same_heirs(old_will[oid].heirs, new_heirs):
|
|
new_will[oid] = old_will[oid]
|
|
new_will[oid].heirs = new_heirs
|
|
new_will[oid].we = new_we
|
|
else:
|
|
# Heirs changed: keep the new (unsigned) item but make sure
|
|
# it carries the up-to-date will-executor.
|
|
new_will[oid].we = new_we
|
|
|
|
continue
|
|
else:
|
|
continue
|
|
|
|
@staticmethod
|
|
def get_higher_input_for_tx(will):
|
|
out = {}
|
|
for wid in will:
|
|
wtx = will[wid].tx
|
|
found = False
|
|
for inp in wtx.inputs():
|
|
if inp.prevout.txid.hex() in will:
|
|
found = True
|
|
break
|
|
if not found:
|
|
out[inp.prevout.to_str()] = inp
|
|
return out
|
|
|
|
@staticmethod
|
|
def invalidate_will(will, wallet, fees_per_byte):
|
|
will_only_valid = Will.only_valid_list(will)
|
|
inputs = Will.get_all_inputs(will_only_valid)
|
|
utxos = wallet.get_utxos()
|
|
filtered_inputs = []
|
|
prevout_to_spend = []
|
|
current_height = Util.get_current_height(wallet.network)
|
|
for prevout_str, ws in inputs.items():
|
|
for w in ws:
|
|
if w[0] not in filtered_inputs:
|
|
filtered_inputs.append(w[0])
|
|
if prevout_str not in prevout_to_spend:
|
|
prevout_to_spend.append(prevout_str)
|
|
balance = 0
|
|
utxo_to_spend = []
|
|
for utxo in utxos:
|
|
if utxo.is_coinbase_output() and utxo.block_height < current_height+100:
|
|
continue
|
|
utxo_str = utxo.prevout.to_str()
|
|
if utxo_str in prevout_to_spend:
|
|
balance += inputs[utxo_str][0][2].value_sats()
|
|
utxo_to_spend.append(utxo)
|
|
if len(utxo_to_spend) > 0:
|
|
change_addresses = wallet.get_change_addresses_for_new_transaction()
|
|
out = PartialTxOutput.from_address_and_value(change_addresses[0], balance)
|
|
out.is_change = True
|
|
locktime = current_height
|
|
tx = PartialTransaction.from_io(
|
|
utxo_to_spend, [out], locktime=locktime, version=2
|
|
)
|
|
tx.set_rbf(True)
|
|
fee = tx.estimated_size() * fees_per_byte
|
|
if balance - fee > 0:
|
|
out = PartialTxOutput.from_address_and_value(
|
|
change_addresses[0], balance - fee
|
|
)
|
|
tx = PartialTransaction.from_io(
|
|
utxo_to_spend, [out], locktime=locktime, version=2
|
|
)
|
|
tx.set_rbf(True)
|
|
|
|
_logger.debug(f"invalidation tx: {tx}")
|
|
return tx
|
|
|
|
else:
|
|
_logger.debug(f"balance({balance}) - fee({fee}) <=0")
|
|
pass
|
|
else:
|
|
_logger.debug("len utxo_to_spend <=0")
|
|
pass
|
|
|
|
@staticmethod
|
|
def is_new(will):
|
|
for wid, w in will.items():
|
|
if w.get_status("VALID") and not w.get_status("COMPLETE"):
|
|
return True
|
|
|
|
@staticmethod
|
|
def search_rai(all_inputs, all_utxos, will, wallet):
|
|
# will_only_valid = Will.only_valid_or_replaced_list(will)
|
|
for inp, ws in all_inputs.items():
|
|
inutxo = Util.in_utxo(inp, all_utxos)
|
|
for w in ws:
|
|
wi = w[1]
|
|
if (
|
|
wi.get_status("VALID")
|
|
or wi.get_status("CONFIRMED")
|
|
or wi.get_status("MEMPOOL")
|
|
):
|
|
prevout_id = w[2].prevout.txid.hex()
|
|
if not inutxo:
|
|
if prevout_id in will:
|
|
wo = will[prevout_id]
|
|
if wo.get_status("REPLACED"):
|
|
wi.set_status("REPLACED", True)
|
|
if wo.get_status("INVALIDATED"):
|
|
wi.set_status("INVALIDATED", True)
|
|
|
|
else:
|
|
if wallet.db.get_transaction(wi._id):
|
|
wi.set_status("CONFIRMED", True)
|
|
else:
|
|
wi.set_status("INVALIDATED", True)
|
|
|
|
for child in wi.search(all_inputs):
|
|
if child.tx.locktime < wi.tx.locktime:
|
|
_logger.debug("a child was found")
|
|
wi.set_status("REPLACED", True)
|
|
else:
|
|
pass
|
|
|
|
@staticmethod
|
|
def utxos_strs(utxos):
|
|
return [Util.utxo_to_str(u) for u in utxos]
|
|
|
|
@staticmethod
|
|
def set_invalidate(wid, will=None):
|
|
will = will if will is not None else {}
|
|
will[wid].set_status("INVALIDATED", True)
|
|
if will[wid].children:
|
|
for c in will[wid].children.items():
|
|
Will.set_invalidate(c[0], will)
|
|
|
|
@staticmethod
|
|
def check_tx_height(tx, wallet):
|
|
info = wallet.get_tx_info(tx)
|
|
return info.tx_mined_status.height()
|
|
|
|
# check if transactions are stil valid tecnically valid
|
|
@staticmethod
|
|
def check_invalidated(willtree, utxos_list, wallet):
|
|
for wid, w in willtree.items():
|
|
if (
|
|
not w.father
|
|
or willtree[w.father].get_status("CONFIRMED")
|
|
or willtree[w.father].get_status("MEMPOOL")
|
|
):
|
|
for inp in w.tx.inputs():
|
|
inp_str = Util.utxo_to_str(inp)
|
|
if inp_str not in utxos_list:
|
|
if wallet:
|
|
height = Will.check_tx_height(w.tx, wallet)
|
|
if height < 0:
|
|
Will.set_invalidate(wid, willtree)
|
|
elif height == 0:
|
|
w.set_status("MEMPOOL", True)
|
|
else:
|
|
w.set_status("CONFIRMED", True)
|
|
|
|
# def reflect_to_children(treeitem):
|
|
# if not treeitem.get_status("VALID"):
|
|
# _logger.debug(f"{tree:item._id} status not valid looking for children")
|
|
# for child in treeitem.children:
|
|
# wc = willtree[child]
|
|
# if wc.get_status("VALID"):
|
|
# if treeitem.get_status("INVALIDATED"):
|
|
# wc.set_status("INVALIDATED", True)
|
|
# if treeitem.get_status("REPLACED"):
|
|
# wc.set_status("REPLACED", True)
|
|
# if wc.children:
|
|
# Will.reflect_to_children(wc)
|
|
|
|
@staticmethod
|
|
def check_amounts(heirs, willexecutors, all_utxos, timestamp_to_check, dust):
|
|
fixed_heirs, fixed_amount, perc_heirs, perc_amount, fixed_amount_with_dust = (
|
|
heirs.fixed_percent_lists_amount(timestamp_to_check, dust, reverse=True)
|
|
)
|
|
wallet_balance = 0
|
|
for utxo in all_utxos:
|
|
wallet_balance += utxo.value_sats()
|
|
|
|
if fixed_amount >= wallet_balance:
|
|
raise FixedAmountException(
|
|
f"Fixed amount({fixed_amount}) >= {wallet_balance}"
|
|
)
|
|
if perc_amount != 100:
|
|
raise PercAmountException(f"Perc amount({perc_amount}) =! 100%")
|
|
|
|
for url, wex in willexecutors.items():
|
|
if Willexecutors.is_selected(wex):
|
|
temp_balance = wallet_balance - int(wex["base_fee"])
|
|
if fixed_amount >= temp_balance:
|
|
raise FixedAmountException(
|
|
f"Willexecutor{url} excess base fee({wex['base_fee']}), {fixed_amount} >={temp_balance}"
|
|
)
|
|
|
|
@staticmethod
|
|
def check_will(will, all_utxos, wallet, timestamp_to_check):
|
|
"""Validate a will against the current wallet state.
|
|
|
|
Locktimes are always UNIX timestamps (block-height locktimes are no
|
|
longer supported by this plugin), so expiry is decided purely by
|
|
comparing each transaction's locktime against ``timestamp_to_check``.
|
|
|
|
Args:
|
|
will: The will dictionary (WillItem entries keyed by txid).
|
|
all_utxos: The list of UTXOs currently available in the wallet.
|
|
wallet: The Electrum wallet object.
|
|
timestamp_to_check: The reference UNIX timestamp (usually "now")
|
|
used to decide whether any transaction has expired.
|
|
"""
|
|
Will.add_willtree(will)
|
|
utxos_list = Will.utxos_strs(all_utxos)
|
|
|
|
Will.check_invalidated(will, utxos_list, wallet)
|
|
|
|
all_inputs = Will.get_all_inputs(will, only_valid=True)
|
|
all_inputs_min_locktime = Will.get_all_inputs_min_locktime(all_inputs)
|
|
Will.check_will_expired(all_inputs_min_locktime, timestamp_to_check)
|
|
|
|
all_inputs = Will.get_all_inputs(will, only_valid=True)
|
|
|
|
Will.search_rai(all_inputs, all_utxos, will, wallet)
|
|
|
|
@staticmethod
|
|
def get_min_locktime(will,default_value=None):
|
|
return min((v.tx.locktime for v in will.values() if v.get_status('VALID')), default=default_value)
|
|
|
|
|
|
|
|
@staticmethod
|
|
def is_will_valid(
|
|
will,
|
|
timestamp_to_check,
|
|
tx_fees,
|
|
all_utxos,
|
|
heirs=None,
|
|
willexecutors=None,
|
|
self_willexecutor=False,
|
|
wallet=False,
|
|
callback_not_valid_tx=None,
|
|
):
|
|
"""Check whether the whole will is valid at the given timestamp.
|
|
|
|
Locktimes are always UNIX timestamps, so the validity check only needs
|
|
a single reference timestamp (no block height).
|
|
|
|
Args:
|
|
will: The will dictionary (WillItem entries keyed by txid).
|
|
timestamp_to_check: Reference UNIX timestamp (usually "now").
|
|
tx_fees: Fee rate used for the dust/coverage check.
|
|
all_utxos: The list of UTXOs currently available in the wallet.
|
|
heirs: Optional heirs dictionary.
|
|
willexecutors: Optional will-executors dictionary.
|
|
self_willexecutor: Whether the user acts as their own executor.
|
|
wallet: The Electrum wallet object.
|
|
callback_not_valid_tx: Optional callback invoked for invalid txs.
|
|
|
|
Returns:
|
|
True if the will is valid; raises an exception otherwise.
|
|
"""
|
|
heirs = heirs if heirs is not None else {}
|
|
willexecutors= willexecutors if willexecutors is not None else {}
|
|
|
|
Will.check_will(will, all_utxos, wallet, timestamp_to_check)
|
|
if heirs:
|
|
if not Will.check_willexecutors_and_heirs(
|
|
will,
|
|
heirs,
|
|
willexecutors,
|
|
self_willexecutor,
|
|
timestamp_to_check,
|
|
tx_fees,
|
|
):
|
|
raise NotCompleteWillException()
|
|
|
|
all_inputs = Will.get_all_inputs(will, only_valid=True)
|
|
|
|
_logger.info("check all utxo in wallet are spent")
|
|
if all_inputs:
|
|
for utxo in all_utxos:
|
|
if utxo.value_sats() > 68 * tx_fees:
|
|
if not Util.in_utxo(utxo, all_inputs.keys()):
|
|
_logger.info("utxo is not spent", utxo.to_json())
|
|
_logger.debug(all_inputs.keys())
|
|
raise NotCompleteWillException(
|
|
"Some utxo in the wallet is not included"
|
|
)
|
|
|
|
_logger.info("will ok")
|
|
return True
|
|
|
|
@staticmethod
|
|
def _short_will_id(will_id):
|
|
"""Return a human-friendly, shortened form of a will id (hash).
|
|
|
|
Will ids are long hex strings (e.g. a 64-char txid) that are hard to
|
|
read in a message box. This keeps only the first and last 8 characters
|
|
joined by an ellipsis (e.g. ``9f1b0a75…fed9ae1b``). Short ids are left
|
|
untouched.
|
|
|
|
Args:
|
|
will_id: The will identifier (hash) to shorten; coerced to ``str``.
|
|
|
|
Returns:
|
|
str: The shortened id, or the original string if it is short.
|
|
"""
|
|
text = str(will_id)
|
|
# Only shorten when there is something to gain (>= 20 chars), otherwise
|
|
# the ellipsis form would not actually be shorter or clearer.
|
|
if len(text) <= 20:
|
|
return text
|
|
return f"{text[:8]}\u2026{text[-8:]}"
|
|
|
|
@staticmethod
|
|
def _format_locktime(locktime):
|
|
"""Format a UNIX locktime timestamp as a readable UTC date string.
|
|
|
|
Args:
|
|
locktime: UNIX timestamp (seconds) to format.
|
|
|
|
Returns:
|
|
str: A string like ``2026-06-22 11:00 UTC``. If formatting fails
|
|
for any reason, the raw timestamp is returned as a fallback so the
|
|
caller always has something to show.
|
|
"""
|
|
try:
|
|
dt = datetime.fromtimestamp(int(locktime), tz=timezone.utc)
|
|
return dt.strftime("%Y-%m-%d %H:%M UTC")
|
|
except Exception:
|
|
# Never let date formatting break the (already exceptional) flow.
|
|
return str(locktime)
|
|
|
|
@staticmethod
|
|
def check_will_expired(all_inputs_min_locktime, timestamp_to_check):
|
|
"""Raise WillExpiredException if any valid transaction has expired.
|
|
|
|
Locktimes are always UNIX timestamps, so a transaction is expired when
|
|
its locktime is in the past relative to ``timestamp_to_check``.
|
|
|
|
When a will is expired the message is written to be reassuring rather
|
|
than alarming: being past the locktime is an EXPECTED situation that the
|
|
plugin handles by invalidating the old will and re-signing it. The
|
|
message therefore uses a shortened will id and a human-readable UTC date
|
|
instead of raw values.
|
|
|
|
Args:
|
|
all_inputs_min_locktime: Mapping prevout -> will-item info, used to
|
|
find the minimum locktime per input.
|
|
timestamp_to_check: Reference UNIX timestamp (usually "now").
|
|
"""
|
|
_logger.info("check if some transaction is expired")
|
|
for prevout_str, wid in all_inputs_min_locktime.items():
|
|
for w in wid:
|
|
if w[1].get_status("VALID"):
|
|
locktime = int(wid[0][1].tx.locktime)
|
|
# Locktimes are always timestamps: expired when in the past.
|
|
if locktime < int(timestamp_to_check):
|
|
# Build a clear, non-technical message: short id +
|
|
# readable date, and explain what will happen next.
|
|
short_id = Will._short_will_id(wid[0][0])
|
|
when = Will._format_locktime(locktime)
|
|
# The message is rendered as HTML by msg_warning(),
|
|
# so a <br> tag forces a line break: the second
|
|
# sentence goes on its own line to avoid an overly
|
|
# long single line in the wizard.
|
|
raise WillExpiredException(
|
|
"Will expired (id {id}, locktime {when}) \u2014<br>"
|
|
"too late to anticipate, the will will be "
|
|
"invalidated and re-signed.".format(
|
|
id=short_id, when=when
|
|
)
|
|
)
|
|
else:
|
|
_logger.debug(
|
|
f"Will Not Expired {wid[0][0]}: "
|
|
f"{Will._format_locktime(locktime)} > "
|
|
f"{Will._format_locktime(timestamp_to_check)}"
|
|
)
|
|
|
|
# def check_all_input_spent_are_in_wallet():
|
|
# _logger.info("check all input spent are in wallet or valid txs")
|
|
# for inp, ws in all_inputs.items():
|
|
# if not Util.in_utxo(inp, all_utxos):
|
|
# for w in ws:
|
|
# if w[1].get_status("VALID"):
|
|
# prevout_id = w[2].prevout.txid.hex()
|
|
# parentwill = will.get(prevout_id, False)
|
|
# if not parentwill or not parentwill.get_status("VALID"):
|
|
# w[1].set_status("INVALIDATED", True)
|
|
|
|
@staticmethod
|
|
def only_valid_list(will):
|
|
out = {}
|
|
for wid, w in will.items():
|
|
if w.get_status("VALID"):
|
|
out[wid] = w
|
|
return out
|
|
|
|
@staticmethod
|
|
def only_valid_or_replaced_list(will):
|
|
out = []
|
|
for wid, w in will.items():
|
|
wi = w
|
|
if wi.get_status("VALID") or wi.get_status("REPLACED"):
|
|
out.append(wid)
|
|
return out
|
|
|
|
@staticmethod
|
|
def check_willexecutors_and_heirs(
|
|
will, heirs, willexecutors, self_willexecutor, check_date, tx_fees
|
|
):
|
|
_logger.debug("check willexecutors heirs")
|
|
no_willexecutor = 0
|
|
willexecutors_found = {}
|
|
heirs_found = {}
|
|
will_only_valid = Will.only_valid_list(will)
|
|
if len(will_only_valid) < 1:
|
|
return False
|
|
for wid in Will.only_valid_list(will):
|
|
w = will[wid]
|
|
if w.tx_fees != tx_fees:
|
|
raise TxFeesChangedException(f"{tx_fees}: {w.tx_fees}")
|
|
for wheir in w.heirs:
|
|
if not 'w!ll3x3c"' == wheir[:9]:
|
|
their = will[wid].heirs[wheir]
|
|
if heir := heirs.get(wheir, None):
|
|
|
|
if heir[0] == their[0] and heir[1] == their[1]:
|
|
# The requested (possibly new) locktime for this heir.
|
|
new_locktime = Util.parse_locktime_string(heir[2])
|
|
# IMPORTANT: compare against the locktime that is
|
|
# actually frozen inside the already-signed Bitcoin
|
|
# transaction (w.tx.locktime), NOT against their[2].
|
|
# their[2] is the heir entry stored in the will item,
|
|
# which is updated in memory together with the new
|
|
# heirs dict when the user postpones, so it would
|
|
# always equal new_locktime and the postpone would go
|
|
# undetected. w.tx.locktime is immutable once signed
|
|
# and is exactly what the will-executors hold.
|
|
tx_locktime = int(w.tx.locktime)
|
|
if new_locktime == tx_locktime:
|
|
# Unchanged: this heir is still coherent.
|
|
count = heirs_found.get(wheir, 0)
|
|
heirs_found[wheir] = count + 1
|
|
elif new_locktime > tx_locktime and (
|
|
w.get_status("COMPLETE") or w.get_status("PUSHED")
|
|
):
|
|
# POSTPONE of an already signed/sent will: the
|
|
# old pre-signed tx must be invalidated on-chain
|
|
# first, otherwise a will-executor could
|
|
# broadcast the earlier-locktime tx and execute
|
|
# the inheritance too early.
|
|
raise WillPostponedException(
|
|
f"{wheir}: locktime postponed "
|
|
f"{tx_locktime}->{new_locktime} "
|
|
f"on a signed/sent will"
|
|
)
|
|
# ANTICIPATE (new_locktime < tx_locktime): the user
|
|
# manually moved the delivery date EARLIER.
|
|
# * If the new date is still in the FUTURE, this is
|
|
# a plain ANTICIPATE: it falls through here and is
|
|
# rebuilt via HeirNotFoundException (no on-chain
|
|
# fee). It must NEVER invalidate on-chain, even if
|
|
# the will was already signed/sent (A3, owner
|
|
# decision D2 = A1).
|
|
# * If the new date is in the PAST (relative to the
|
|
# check date) the will is genuinely expired and
|
|
# check_will_expired -> WillExpiredException handles
|
|
# it (on-chain invalidation). That is a different
|
|
# situation from "anticipate" and is intentionally
|
|
# kept.
|
|
#
|
|
# new_locktime > tx_locktime on a will that was never
|
|
# signed/sent also falls through here -> a plain rebuild
|
|
# via HeirNotFoundException (no on-chain fee needed).
|
|
else:
|
|
# The will still carries this heir, but the heir is no
|
|
# longer present in the current heirs set: the user
|
|
# removed it. This must trigger a rebuild exactly like
|
|
# "heir added" does, otherwise the removed heir would
|
|
# silently stay in the inheritance transaction. Raising
|
|
# HeirNotFoundException reuses the same rebuild path used
|
|
# by the Check button and by on_close (Electrum quit).
|
|
_logger.debug(
|
|
f"heir removed, transaction is not valid:"
|
|
f"{wheir} {wid}, {w}"
|
|
)
|
|
raise HeirNotFoundException(wheir)
|
|
|
|
if willexecutor := w.we:
|
|
count = willexecutors_found.get(willexecutor["url"], 0)
|
|
if Util.cmp_willexecutor(
|
|
willexecutor, willexecutors.get(willexecutor["url"], None)
|
|
):
|
|
willexecutors_found[willexecutor["url"]] = count + 1
|
|
|
|
else:
|
|
no_willexecutor += 1
|
|
count_heirs = 0
|
|
for h in heirs:
|
|
|
|
if Util.parse_locktime_string(heirs[h][2]) >= check_date:
|
|
count_heirs += 1
|
|
if h not in heirs_found:
|
|
_logger.debug(f"heir: {h} not found")
|
|
raise HeirNotFoundException(h)
|
|
if not count_heirs:
|
|
raise NoHeirsException("there are not valid heirs")
|
|
if self_willexecutor and no_willexecutor == 0:
|
|
raise NoWillExecutorNotPresent("Backup tx")
|
|
for url, we in willexecutors.items():
|
|
if Willexecutors.is_selected(we):
|
|
if url not in willexecutors_found:
|
|
_logger.debug(f"will-executor: {url} not fount")
|
|
raise WillExecutorNotPresent(url)
|
|
_logger.info("will is coherent with heirs and will-executors")
|
|
return True
|
|
|
|
|
|
|
|
class WillItem(Logger):
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# Default status flags for an inheritance transaction.
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# Each entry maps an internal status key to [human-readable label, default
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# boolean value].
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#
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# A2 changes:
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# * "PENDING" was renamed to "MEMPOOL" (the transaction has been seen in
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# the Electrum mempool). Old saved wills that still carry the legacy
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# "PENDING" key are migrated to "MEMPOOL" in __init__ (see below), so
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# nothing is lost.
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# * "UPDATED" was added: the transaction was spendable AND valid, and a new
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# transaction replaces it while keeping the SAME locktime and SAME heirs.
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# UPDATED keeps the VALID flag (see set_status).
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STATUS_DEFAULT = {
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"ANTICIPATED": ["Anticipated", False],
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"BROADCASTED": ["Broadcasted", False],
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"CHECKED": ["Checked", False],
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"CHECK_FAIL": ["Check Failed", False],
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"COMPLETE": ["Signed", False],
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"CONFIRMED": ["Confirmed", False],
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"ERROR": ["Error", False],
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"EXPIRED": ["Expired", False],
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"EXPORTED": ["Exported", False],
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"IMPORTED": ["Imported", False],
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"INVALIDATED": ["Invalidated", False],
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"MEMPOOL": ["Mempool", False],
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"PUSH_FAIL": ["Push failed", False],
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"PUSHED": ["Pushed", False],
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"REPLACED": ["Replaced", False],
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"RESTORED": ["Restored", False],
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"UPDATED": ["Updated", False],
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"VALID": ["Valid", True],
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}
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def set_status(self, status, value=True):
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"""Set a status flag and apply the related side effects.
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Some statuses imply that other statuses must change. The rules below
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match the inheritance state machine:
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VALID handling:
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* INVALIDATED, REPLACED, CONFIRMED, MEMPOOL -> clear VALID
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(the transaction can no longer be delivered as a valid will tx).
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* ANTICIPATED -> KEEPS VALID. Anticipating only moves the locktime
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earlier by 1 day; the transaction stays valid (it is NOT in the
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"clear VALID" list on purpose).
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* UPDATED -> KEEPS VALID. The transaction is replaced by a new one
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that keeps the SAME locktime and SAME heirs, so it stays valid
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(it is NOT in the "clear VALID" list on purpose).
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Other side effects:
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* CONFIRMED, MEMPOOL -> clear INVALIDATED (the tx is on-chain or in
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the mempool, so it is no longer considered invalidated).
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* PUSHED -> clear PUSH_FAIL and CHECK_FAIL.
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* CHECKED -> set PUSHED and clear PUSH_FAIL.
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Args:
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status: The status key to set (must exist in STATUS).
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value: True to set the flag, False to clear it. Defaults to True.
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Returns:
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The applied boolean value, or None if the flag was already set to
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that value (no change).
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"""
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if self.STATUS[status][1] == bool(value):
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return None
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self.status += "." + (("NOT " if not value else "") + _(self.STATUS[status][0]))
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self.STATUS[status][1] = bool(value)
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if value:
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# NOTE: ANTICIPATED and UPDATED are intentionally NOT in this list,
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# so they keep the VALID flag (see docstring above).
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if status in ["INVALIDATED", "REPLACED", "CONFIRMED", "MEMPOOL"]:
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self.STATUS["VALID"][1] = False
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if status in ["CONFIRMED", "MEMPOOL"]:
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self.STATUS["INVALIDATED"][1] = False
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if status in ["PUSHED"]:
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self.STATUS["PUSH_FAIL"][1] = False
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self.STATUS["CHECK_FAIL"][1] = False
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if status in ["CHECKED"]:
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self.STATUS["PUSHED"][1] = True
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self.STATUS["PUSH_FAIL"][1] = False
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return value
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def get_status(self, status):
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return self.STATUS[status][1]
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def __init__(self, w, _id=None, wallet=None):
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if isinstance(
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w,
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WillItem,
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):
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self.__dict__ = w.__dict__.copy()
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else:
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self.tx = Will.get_tx_from_any(w["tx"])
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self.heirs = w.get("heirs", None)
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self.we = w.get("willexecutor", None)
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self.status = w.get("status", None)
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self.description = w.get("description", None)
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self.time = w.get("time", None)
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self.change = w.get("change", None)
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self.tx_fees = w.get("baltx_fees", 0)
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self.father = w.get("Father", None)
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self.children = w.get("Children", None)
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self.STATUS = copy.deepcopy(WillItem.STATUS_DEFAULT)
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for s in self.STATUS:
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self.STATUS[s][1] = w.get(s, WillItem.STATUS_DEFAULT[s][1])
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# Backward-compatibility migration (A2): the "PENDING" status was
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# renamed to "MEMPOOL". Wills saved by older versions of the plugin
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# store the flag under the legacy "PENDING" key, so if that key is
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# present and set, carry it over to "MEMPOOL". This way no state is
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# lost when loading an older will. The new key always wins if both
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# happen to be present.
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if "MEMPOOL" not in w and w.get("PENDING"):
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self.STATUS["MEMPOOL"][1] = True
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if not _id:
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self._id = self.tx.txid()
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else:
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self._id = _id
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if not self._id:
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self.status += "ERROR!!!"
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self.valid = False
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if wallet:
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self.tx.add_info_from_wallet(wallet)
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def to_dict(self):
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out = {
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"_id": self._id,
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"tx": self.tx,
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"heirs": self.heirs,
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"willexecutor": self.we,
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"status": self.status,
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"description": self.description,
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"time": self.time,
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"change": self.change,
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"baltx_fees": self.tx_fees,
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}
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for key in self.STATUS:
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try:
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out[key] = self.STATUS[key][1]
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except Exception as e:
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_logger.error(f"{key},{self.STATUS[key]} {e}")
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return out
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def __repr__(self):
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return str(self)
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def __str__(self):
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return str(self.to_dict())
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def set_anticipate(self, ow: "WillItem"):
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nl = min(ow.tx.locktime, Will.check_anticipate(ow, self))
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if int(nl) < self.tx.locktime:
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self.tx.locktime = int(nl)
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return True
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else:
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return False
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def search_anticipate(self, all_inputs):
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anticipated = False
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for ow in self.search(all_inputs):
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if self.set_anticipate(ow):
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anticipated = True
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return anticipated
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def search(self, all_inputs):
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for inp in self.tx.inputs():
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prevout_str = inp.prevout.to_str()
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oinps = all_inputs.get(prevout_str, [])
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for oinp in oinps:
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ow = oinp[1]
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if ow._id != self._id:
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yield ow
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def normalize_locktime(self, all_inputs):
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outputs = self.tx.outputs()
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for idx in range(0, len(outputs)):
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inps = all_inputs.get(f"{self._id}:{idx}", [])
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_logger.debug("****check locktime***")
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for inp in inps:
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if inp[0] != self._id:
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iw = inp[1]
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self.set_anticipate(iw)
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def set_check_willexecutor(self,resp):
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try:
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if resp :
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if "tx" in resp and resp["tx"] == str(self.tx):
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self.set_status("PUSHED")
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self.set_status("CHECKED")
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else:
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self.set_status("CHECK_FAIL")
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self.set_status("PUSHED", False)
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return True
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else:
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self.set_status("CHECK_FAIL")
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self.set_status("PUSHED", False)
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return False
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except Exception as e:
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_logger.error(f"exception checking transaction: {e}")
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self.set_status("CHECK_FAIL")
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# NOTE: the former ``get_color()`` method (which returned hard-coded hex
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# colours for the GUI) has been moved out of the core logic to
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# ``bal.gui.qt.theme.status_color``. The status flags above remain the
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# single source of truth; the GUI maps them to colours.
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class WillException(Exception):
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def __init__(self,msg="WillException"):
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self.msg=msg
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Exception.__init__(self)
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def __str__(self):
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return self.msg
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class WillExpiredException(WillException):
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pass
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class NotCompleteWillException(WillException):
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pass
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class HeirChangeException(NotCompleteWillException):
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pass
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class TxFeesChangedException(NotCompleteWillException):
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pass
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class HeirNotFoundException(NotCompleteWillException):
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pass
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class WillPostponedException(NotCompleteWillException):
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"""An already signed/sent will is being postponed.
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When a will that has already been signed (``COMPLETE``) and/or pushed to
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will-executors (``PUSHED``) gets its locktime moved to a LATER date, the
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previously committed coins must be invalidated on-chain BEFORE rebuilding
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the new inheritance. Otherwise a will-executor could broadcast the old
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(earlier-locktime) transaction and execute the inheritance too early to
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collect the fees. Invalidating spends the same UTXOs now, permanently
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voiding the old pre-signed transaction.
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"""
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pass
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class WillexecutorChangeException(NotCompleteWillException):
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pass
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class NoWillExecutorNotPresent(NotCompleteWillException):
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pass
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class WillExecutorNotPresent(NotCompleteWillException):
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pass
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class NoHeirsException(WillException):
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pass
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class AmountException(WillException):
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pass
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class PercAmountException(AmountException):
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pass
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class FixedAmountException(AmountException):
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pass
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