This PR associates OutputType::BECH32 to PAK online keys, where before we
were able to directly access keys from the keypool. In a future refactoring
we should give PAK keys their own output type (and own scriptpubkey manager)
so that the wallet won't accept payments "to the PAK key".
Also changes `ReserveDestination::SetBlindingPubKey` to use a visitor pattern
to apply a blinding pubkey to a destination directly, rather than using the
old hacky method of regenerating the destination by pulling its key (which
is no longer contained in the class) out and giving it to a new constructor.
This was a long-overdue refactoring and the minimal-diff way to get the code
compiling (and it's not bad, maybe 10LOC to add a new visitor class) but
nonetheless I apologize for sticking this into a merge commit.
This is the start of some nontrivial wallet refactoring by achow. See
https://github.com/bitcoin-core/bitcoin-devwiki/wiki/Wallet-Class-Structure-Changes
for a high-level design.
This PR moves some stuff out of CWallet into a dummy "box" LegacyScriptPubKeyMan
which is (currently) very tightly coulped to CWallet. Because of the coupling there
are currently null-checks that cannot fail, things which assume non-nullness which
will eventually be wrong, and a plethora of currently-equivalent ways to get from
a CWallet to a provider or back.
Our approach is basically to ignore the refactoring; leave the blinding key stuff
in CWallet and have it call into the wallet's provider when we are obtaining the
underlying keys.
Later, probably in a post-rebase PR, we should rethink how we manage blinding keys
to more closely match Core's "all keys go into providers" model.
In order for ScriptPubKeyMan to be generic and work with future
ScriptPubKeyMans, ScriptPubKeyMan::ReturnDestination is changed to
take a CTxDestination instead of a CPubKey. Since LegacyScriptPubKeyMan
still deals with keys internally, a new map m_reserved_key_to_index is
added in order to track the keypool indexes that have been reserved.
The CPubKey argument of KeepDestination is also removed so that it is
more generic. Instead of taking a CPubKey or a CTxDestination, we just use
the nIndex given to find the pubkey.
Addresses are determined by LegacyScriptPubKeyMan::GetReservedDestination
instead of ReserveDestination::GetReservedDestination as other ScriptPubKeyMan
implementations may construct addresses differently
This does not change behavior.
ScriptPubKeyMan is only using UnsetWalletFlagWithDB to unset the blank
wallet flag. Just make that it's own function and not expose the flag
writing directly.
This does not change behavior.
This moves CWallet members and methods dealing with keys to a new
LegacyScriptPubKeyMan class, and updates calling code to reference the new
class instead of CWallet.
Most of the changes are simple text replacements and variable substitutions
easily verified with:
git log -p -n1 -U0 --word-diff-regex=.
The only nontrivial chunk of code added is the new LegacyScriptPubKeyMan class
declaration, but this code isn't new and is just selectively copied and moved
from the previous CWallet class declaration. This can be verified with:
git log -p -n1 --color-moved=dimmed_zebra src/wallet/scriptpubkeyman.h src/wallet/wallet.h
or
git diff HEAD~1:src/wallet/wallet.h HEAD:src/wallet/scriptpubkeyman.h
This commit does not change behavior.
Start moving wallet and ismine code to scriptpubkeyman.h, scriptpubkeyman.cpp
The easiest way to review this commit is to run:
git log -p -n1 --color-moved=dimmed_zebra
And check that everything is a move (other than includes and copyrights comments).
This commit is move-only and doesn't change code or affect behavior.
