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wallet: add ImportAccountWithScope

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When creating a fully watch-only wallet, we know exactly what accounts
we are importing and what scope should be used for them.
This commit is contained in:
Oliver Gugger 2021-09-08 13:52:08 +02:00 committed by Roy Lee
parent 47a13774bb
commit 8e853a7fb5
1 changed files with 43 additions and 1 deletions
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42
wallet/import.go
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@ -204,6 +204,30 @@ func (w *Wallet) ImportAccount(name string, accountPubKey *hdkeychain.ExtendedKe
return accountProps, err return accountProps, err
} }
// ImportAccountWithScope imports an account backed by an account extended
// public key for a specific key scope which is known in advance.
// The master key fingerprint denotes the fingerprint of the root key
// corresponding to the account public key (also known as the key with
// derivation path m/). This may be required by some hardware wallets for proper
// identification and signing.
func (w *Wallet) ImportAccountWithScope(name string,
accountPubKey *hdkeychain.ExtendedKey, masterKeyFingerprint uint32,
keyScope waddrmgr.KeyScope, addrSchema waddrmgr.ScopeAddrSchema) (
*waddrmgr.AccountProperties, error) {
var accountProps *waddrmgr.AccountProperties
err := walletdb.Update(w.db, func(tx walletdb.ReadWriteTx) error {
ns := tx.ReadWriteBucket(waddrmgrNamespaceKey)
var err error
accountProps, err = w.importAccountScope(
ns, name, accountPubKey, masterKeyFingerprint, keyScope,
&addrSchema,
)
return err
})
return accountProps, err
}
// importAccount is the internal implementation of ImportAccount -- one should // importAccount is the internal implementation of ImportAccount -- one should
// reference its documentation for this method. // reference its documentation for this method.
func (w *Wallet) importAccount(ns walletdb.ReadWriteBucket, name string, func (w *Wallet) importAccount(ns walletdb.ReadWriteBucket, name string,
@ -221,10 +245,28 @@ func (w *Wallet) importAccount(ns walletdb.ReadWriteBucket, name string,
if err != nil { if err != nil {
return nil, err return nil, err
} }
return w.importAccountScope(
ns, name, accountPubKey, masterKeyFingerprint, keyScope,
addrSchema,
)
}
// importAccountScope imports a watch-only account for a given scope.
func (w *Wallet) importAccountScope(ns walletdb.ReadWriteBucket, name string,
accountPubKey *hdkeychain.ExtendedKey, masterKeyFingerprint uint32,
keyScope waddrmgr.KeyScope, addrSchema *waddrmgr.ScopeAddrSchema) (
*waddrmgr.AccountProperties, error) {
scopedMgr, err := w.Manager.FetchScopedKeyManager(keyScope) scopedMgr, err := w.Manager.FetchScopedKeyManager(keyScope)
if err != nil {
scopedMgr, err = w.Manager.NewScopedKeyManager(
ns, keyScope, *addrSchema,
)
if err != nil { if err != nil {
return nil, err return nil, err
} }
}
account, err := scopedMgr.NewAccountWatchingOnly( account, err := scopedMgr.NewAccountWatchingOnly(
ns, name, accountPubKey, masterKeyFingerprint, addrSchema, ns, name, accountPubKey, masterKeyFingerprint, addrSchema,