Enables lightning by creating a node private key and storing it in
the wallet. The gossiper is not launched at start up, only if there
are existing channels.
Previously e.g. bip32 derivation info was missing for change outputs in partial tx returned by bump_fee.
This was not exposed to users as the GUI TxDialog calls `tx.add_info_from_wallet(self.wallet)`.
When raising generic Exception, window.on_error can't tell whether
there was a programming error or we just want to communicate with the user.
E | gui.qt.main_window.[default_wallet] | on_error
Traceback (most recent call last):
File "/home/user/wspace/electrum/electrum/gui/qt/util.py", line 832, in run
result = task.task()
File "/home/user/wspace/electrum/electrum/gui/qt/main_window.py", line 2900, in <lambda>
task = lambda: self.network.run_from_another_thread(
File "/home/user/wspace/electrum/electrum/network.py", line 358, in run_from_another_thread
return fut.result(timeout)
File "/usr/lib/python3.8/concurrent/futures/_base.py", line 439, in result
return self.__get_result()
File "/usr/lib/python3.8/concurrent/futures/_base.py", line 388, in __get_result
raise self._exception
File "/home/user/wspace/electrum/electrum/wallet.py", line 162, in sweep_preparations
raise Exception(_('No inputs found.'))
Exception: No inputs found.
This is too complicated and ugly because it relies on side
effects. What we should do instead is collapse transactions
in children nodes of QTreeView (see #6237)
If a used/reserved change address became unused/unreserved, it would not
get offered for usage by wallet until app restart.
Make the used->unused transition less likely by requiring 3 confirmations
(instead of considering even local/unconfirmed txs for 'used');
and avoid removing reserved addresses from the pool altogether.
We are now using change addresses for the channel SRK to_remote outputs
(and reserving these change addresses). (see prev commits)
Note that every channel open we initiate typically uses two change addresses:
- one for the SRK to_remote output, and
- one for the funding tx change output (assuming there is change).
- Use change addresses (instead of receive) for the static_remotekey to_remote outputs,
and reserve these to greatly reduce the chance of address-reuse
- Use change addresses (instead of receive) for LN channel sweep addresses.
Note that these atm are not getting reserved.
- also, disallow deleting last address from an imported wallet (fixes#3254, fixes#4833)
- also, set LNBackups.sweep_address lazily, as during fresh wallet creation
there are no addresses in the wallet at that point yet! see trace below.
Traceback (most recent call last):
[...]
File "...\electrum\electrum\tests\test_commands.py", line 112, in test_export_private_key_deterministic
wallet = restore_wallet_from_text('bitter grass shiver impose acquire brush forget axis eager alone wine silver',
File "...\electrum\electrum\wallet.py", line 2575, in restore_wallet_from_text
wallet = Wallet(db, storage, config=config)
File "...\electrum\electrum\wallet.py", line 2502, in __new__
wallet = WalletClass(db, storage, config=config)
File "...\electrum\electrum\wallet.py", line 2346, in __init__
Deterministic_Wallet.__init__(self, db, storage, config=config)
File "...\electrum\electrum\wallet.py", line 2147, in __init__
Abstract_Wallet.__init__(self, db, storage, config=config)
File "...\electrum\electrum\wallet.py", line 261, in __init__
self.lnbackups = LNBackups(self)
File "...\electrum\electrum\lnworker.py", line 1401, in __init__
self.sweep_address = wallet.get_receiving_address()
File "...\electrum\electrum\wallet.py", line 1498, in wrapper
addr = func(self, *args, **kwargs)
File "...\electrum\electrum\wallet.py", line 1520, in get_receiving_address
raise Exception("no receiving addresses in wallet?!")
Exception: no receiving addresses in wallet?!
