Not setting this would result in a non-sensible unix timestamp
(2288912640) being exposed when the wallet hasn't synced any blocks,
like in the case when it's waiting for the backend to sync.
This commit allows for the ability to lease an output to a particular ID
for a limited amount of time, ensuring that no other processes can use
said output for their coin selection needs. An output can either be
unlocked manually, or lazily whenever required.
Separate out the logic we use to write labels so that it can be used
in dropwtxmgr to re-add labels if we want to keep them when we drop the
rest of the db.
There's no need to retrieve the full block as we're only interesting in
retrieve its corresponding height, which can be done with
GetBlockHeaderVerbose.
Code is duplicated across these two functions, so update
rangeBlockTransactions to use minedTxDetails. When iterating through
a block, we do have the block metadata already (which is looked up by
minedTxDetails). This change can be further optimized to split
minedTxDetails into minedTxDetails and minedTxDetailsWithoutBlock to
reduce this redundancy.
All label parameter to PublishTransaction. Pass in an empty string
in rpc call as a placeholder for follow up PR which will add a label
parameter to the PublishTransaction request.
Add and test functions which can be used to write optional transaction
labels to disk in their own bucket. These labels are keyed by txid and
write the labels to disk using-length value encoding scheme. Although
the length field is not required at present, it is added to allow future
extensibility without a migration.
This approach is chosen over adding this information to txRecords,
Because a migration would be required to add a field after the variable
Length serialized tx.
The put label function will overwrite existing labels if called more
than once for the same txid. User side validation of whether we want
to override this label should be performed by calling code. Labels must
be > 0 characters and <= 500 characters (an arbitrarily chosen limit).
This PR allows the creation of managers and accounts that are watch-only. The state of the database after creation would be identical to the state after calling
Manager.ConvertToWatchingOnly, assuming accounts with the right xpubs were created in the former case.
Co-authored-by: Ken Sedgwick <ken@bonsai.com>
In similar fashion to the previous commit, due to a no longer existing
bug within the wallet, it was possible for change addresses to be
created outside of their intended key scope (the default), so wallets
affected by this now need to ensure upon recovery that they scan the
chain for _all_ existing key scopes, rather than just the default ones,
to reflect their proper balance. Through manual testing, it was shown
that the impact of recovering the additional key scopes is negligible in
most cases for both full nodes and light clients.
Due to a no longer existing bug within the wallet, it was possible for
change addresses to be created outside of their intended key scope (the
default), so wallets affected by this now need to ensure they scan the
chain for all addresses within the default key scopes (as expected), and
all _internal_ addresses (branch used for change addresses) within any
other registered key scopes to reflect their proper balance.
The commit being reverted resulted in the discovery of a bug in which
change addresses could at times be created outside of the default key
scopes, causing us to not properly determine their spends.
Previously, the wallet would determine the key scope to use for change
addresses by locating the one compatible with P2WPKH addresses, but this
wasn't always safe like in the case when multiple key scopes that
supported these addresses existed within the address manager, leading
the change address to be created outside of the intended key scope.
Normally the wallet doesn't wait for the chain backend to be synced
on regtest/simnet because there we cannot be certain if we are at
the chain tip, as there are no other nodes to compare to. For
Neutrino, this is a bit different because we rely on the cfheader
server to tell us what it thinks the chain tip is. For a wallet
recovery on Neutrino we therefore need to make sure we are at least
synced up to what the server thinks is the tip.
It was discovered that the wallet can scan the chain for unnecessary
additional addresses that are derived by higher-level applications using
custom key scopes. This isn't much of an issue for full nodes, but it
can cause light clients to scan more than what's required, triggering
more false positive matches which lead to block retrieval.
Now, we'll only scan the chain for addresses that exist within the
default key scopes, as those are the only ones the wallet should be
concerned about.
