While making these tests compile and pass, we ended up tripping on the
broken bolt cursor usage painfully discovered in dcrwallet, so i've
ported that fix over as well. Would have learned about that a whole
lot sooner if those tests were never disabled..
This changes the database access APIs and each of the "manager"
packages (waddrmgr/wstakemgr) so that transactions are opened (only)
by the wallet package and the namespace buckets that each manager
expects to operate on are passed in as parameters.
This helps improve the atomicity situation as it means that many
calls to these APIs can be grouped together into a single
database transaction.
This change does not attempt to completely fix the "half-processed"
block problem. Mined transactions are still added to the wallet
database under their own database transaction as this is how they are
notified by the consensus JSON-RPC server (as loose transactions,
without the rest of the block that contains them). It will make
updating to a fixed notification model significantly easier, as the
same "manager" APIs can still be used, but grouped into a single
atomic transaction.
This is a backport of decred/dcrwallet#612.
This change moves the wait for the session RPC response (used as a
pong) to a new goroutine that does not run directly in the queue
handler. By moving this out to a new goroutine, the handler can
continue enqueuing and dequeueing notifications while waiting for the
session response. Previously, if a notifiation was sent after the
session RPC was called and before the response was received, the
rpcclient main loop would block due to being unable to enqueue the
notification.
Remove the addresses field from TransactionDetails.Output. It is
assumed that the caller is able to deserialize the transaction and
encode the output scripts to addresses, so this is unnecessary server
overhead and conflicts with the current API philosophy of not
duplicating data already included in another field.
Since there is no additional data included for outputs not controlled
by the wallet, remove the `mine` specifier from the Output message and
replace it with an output index. Only include messages for controlled
outputs, rather than creating messages for both controlled and
uncontrolled outputs. Rename the repeated field from `outputs` to
`credits` to be consistent with the `debits` field.
Bump major API version as this is a breaking change.
Closes#408.
This fixes a bug introduced by the new segwit behavior upstream in
btcd. Previously it was a nice optimization to skip the extra
serialization, and compute the txid manually from the serialized
transaction.
However, with segwit, doing that will generate an invalid txid, since
txid’s should ignore any witness data. Therefore, we now fallback to
using msgTx.TxSha() which serializes the transaction without witness
data before calculating the txid.
This commit enabled the wallet to properly spend nested and normal
p2wkh outputs under its control.
For regular p2wkh outputs, spending simply involves presenting the
original pub key, and signature as the witness data.
For nested p2wkh outputs, in addition to the above, the version zero
witness p2wkh witness program is placed in the sigScript in order to
allow clients who are aware of BIP 16 to validate the witness spend.
When spending a segwit output, the wallet also needs the input value of
the previous output script. Therefore when selecting outputs the input
value is now returned. Additionally when validating newly signed
outputs the input value as also passed into `txscript.Engine`
This commit introduces two new address types to the waddrmgr. The first
address type is the native p2wkh (pay-to-witness-key-hash) output type
introduced as part of BIP0141 and the segwit soft-fork. The second
address type is a p2wkh output nested *within* a regular p2sh output.
This second address allows older wallets which are not yet aware of the
new segwit output types to transparently pay to a wallet which does
support them. Additionally, using this nested p2wkh output the wallet
gains both the space+transaction fee savings, as well as the
malleability fixes.
Both address types have been implemented as special cases of the
ManagedPubKeyAddress since they share several traits, only
differentiating in the signing mechanism needed, and the concrete
implementation of btcutil.Address returned by the address.
Two new `addressType` constants have been added to waddrmgr’s db in
order to properly serialize and deserialize the new address types.
