Adds a new configvar `WALLET_PARTIAL_WRITES` to enable/disable partial writes for the walletDB.
This is a further restriction on top of the existing restrictions,
e.g. wallet files still need to have file encryption disabled for partial writes.
It defaults to off, so even for unencrypted wallets we disable partial writes for now.
This is used as a stopgap measure until we fix the issues found with the partial writes impl
(see https://github.com/spesmilo/electrum/issues/10000).
store all plugin data by plugin name in a root dictionary `plugin_data`
inside the wallet db so that plugin data can get deleted again.
Prunes the data of plugins from the wallet db on wallet stop if the
plugin is not installed anymore.
if they use a software keystore.
This excludes hardware wallets and watching-only wallet.
Also, this forbids creation of new channels in those wallets,
in case lightning was previously enabled.
Fixes#9440
Adds a new config option: `WALLET_FREEZE_REUSED_ADDRESS_UTXOS`.
This is based on Bitcoin Core's "avoid_reuse" wallet flag. [0]
This opt-in feature, if enabled:
> Automatically freeze coins received to already used addresses.
> This can eliminate a serious privacy issue where a malicious user can track your spends by sending small payments
> to a previously-paid address of yours that would then be included with unrelated inputs in your future payments.
Note that currently we only have a single coinchooser policy, `CoinChooserPrivacy`,
which interacts well with this option, as it spends all coins from any selected address.
However, if we later add a different coinchooser policy, which allowed "partial spends",
care should be taken re e.g. disallowing using that when this option is set.
Also note that this PR adds this as a config option, but arguably it could be wallet-specific instead,
such as `use_change`.
[0]: https://github.com/bitcoin/bitcoin/blob/master/doc/release-notes/release-notes-0.19.0.1.md#wallet
closes https://github.com/spesmilo/electrum/issues/7497
Internally whether a coin is frozen is tri-state:
- forced-True, set by the user
- forced-False, set by the user
- unset/default: is_frozen_coin() can decide whether the coin should be frozen
This patch lets set_frozen_state_of_coins() undo a previous explicit setting of True/False,
by calling it with a value of None.
Note: there is still no way in the GUI to undo an explicit setting of True/False.
The class TxBatcher handles the creation, broadcast and replacement
of replaceable transactions. Callers (LNWatcher, SwapManager) use
methods add_payment_output and add_sweep_info. Transactions
created by TxBatcher may combine sweeps and outgoing payments.
Transactions created by TxBatcher will have their fee bumped
automatically (this was only the case for sweeps before).
TxBatcher manages several TxBatches. TxBatches are created
dynamically when needed.
The GUI does not touch txbatcher transactions:
- wallet.get_candidates_for_batching excludes txbatcher
transactions
- RBF dialogs do not work with txbatcher transactions
wallet:
- instead of reading config variables, make_unsigned_transaction
takes new parameters: base_tx, send_change_to_lighting
tests:
- unit tests in test_txbatcher.py (replaces test_sswaps.py)
- force all regtests to use MPP, so that we sweep transactions
with several HTLCs. This forces the payment manager to aggregate
first-stage HTLC tx inputs. second-stage are not batched for now.
