Merge pull request #746 from wpaulino/import-dry-run
wallet: add dry run implementation of ImportAccount
This commit is contained in:
commit
82fa030bda
3 changed files with 119 additions and 23 deletions
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@ -2270,3 +2270,11 @@ func (s *ScopedKeyManager) cloneKeyWithVersion(key *hdkeychain.ExtendedKey) (
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return key.CloneWithVersion(versionBytes[:])
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return key.CloneWithVersion(versionBytes[:])
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}
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}
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// InvalidateAccountCache invalidates the cache for the given account, forcing a
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// database read to retrieve the account information.
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func (s *ScopedKeyManager) InvalidateAccountCache(account uint32) {
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s.mtx.Lock()
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defer s.mtx.Unlock()
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delete(s.acctInfo, account)
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}
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107
wallet/import.go
107
wallet/import.go
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@ -192,6 +192,24 @@ func (w *Wallet) ImportAccount(name string, accountPubKey *hdkeychain.ExtendedKe
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masterKeyFingerprint uint32, addrType *waddrmgr.AddressType) (
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masterKeyFingerprint uint32, addrType *waddrmgr.AddressType) (
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*waddrmgr.AccountProperties, error) {
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*waddrmgr.AccountProperties, error) {
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var accountProps *waddrmgr.AccountProperties
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err := walletdb.Update(w.db, func(tx walletdb.ReadWriteTx) error {
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ns := tx.ReadWriteBucket(waddrmgrNamespaceKey)
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var err error
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accountProps, err = w.importAccount(
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ns, name, accountPubKey, masterKeyFingerprint, addrType,
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)
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return err
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})
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return accountProps, err
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}
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// importAccount is the internal implementation of ImportAccount -- one should
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// reference its documentation for this method.
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func (w *Wallet) importAccount(ns walletdb.ReadWriteBucket, name string,
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accountPubKey *hdkeychain.ExtendedKey, masterKeyFingerprint uint32,
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addrType *waddrmgr.AddressType) (*waddrmgr.AccountProperties, error) {
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// Ensure we have a valid account public key.
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// Ensure we have a valid account public key.
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if err := w.validateExtendedPubKey(accountPubKey, true); err != nil {
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if err := w.validateExtendedPubKey(accountPubKey, true); err != nil {
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return nil, err
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return nil, err
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@ -208,21 +226,80 @@ func (w *Wallet) ImportAccount(name string, accountPubKey *hdkeychain.ExtendedKe
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return nil, err
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return nil, err
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}
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}
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// Store the account as watch-only within the database.
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account, err := scopedMgr.NewAccountWatchingOnly(
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var accountProps *waddrmgr.AccountProperties
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ns, name, accountPubKey, masterKeyFingerprint, addrSchema,
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err = walletdb.Update(w.db, func(tx walletdb.ReadWriteTx) error {
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)
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ns := tx.ReadWriteBucket(waddrmgrNamespaceKey)
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if err != nil {
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account, err := scopedMgr.NewAccountWatchingOnly(
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return nil, err
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ns, name, accountPubKey, masterKeyFingerprint,
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}
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addrSchema,
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return scopedMgr.AccountProperties(ns, account)
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)
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}
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if err != nil {
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return err
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// ImportAccountDryRun serves as a dry run implementation of ImportAccount. This
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}
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// method also returns the first N external and internal addresses, which can be
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accountProps, err = scopedMgr.AccountProperties(ns, account)
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// presented to users to confirm whether the account has been imported
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return err
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// correctly.
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})
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func (w *Wallet) ImportAccountDryRun(name string,
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return accountProps, err
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accountPubKey *hdkeychain.ExtendedKey, masterKeyFingerprint uint32,
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addrType *waddrmgr.AddressType, numAddrs uint32) (
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*waddrmgr.AccountProperties, []waddrmgr.ManagedAddress,
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[]waddrmgr.ManagedAddress, error) {
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// Start a database transaction that we'll never commit and always
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// rollback.
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tx, err := w.db.BeginReadWriteTx()
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if err != nil {
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return nil, nil, nil, err
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}
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defer func() {
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_ = tx.Rollback()
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}()
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ns := tx.ReadWriteBucket(waddrmgrNamespaceKey)
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// Import the account as usual.
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accountProps, err := w.importAccount(
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ns, name, accountPubKey, masterKeyFingerprint, addrType,
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)
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if err != nil {
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return nil, nil, nil, err
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}
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// Derive the external and internal addresses. Note that we could do
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// this based on the provided accountPubKey alone, but we go through the
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// ScopedKeyManager instead to ensure addresses will be derived as
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// expected from the wallet's point-of-view.
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manager, err := w.Manager.FetchScopedKeyManager(accountProps.KeyScope)
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if err != nil {
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return nil, nil, nil, err
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}
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// The importAccount method above will cache the imported account within
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// the scoped manager. Since this is a dry-run attempt, we'll want to
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// invalidate the cache for it.
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defer manager.InvalidateAccountCache(accountProps.AccountNumber)
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externalAddrs, err := manager.NextExternalAddresses(
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ns, accountProps.AccountNumber, numAddrs,
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)
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if err != nil {
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return nil, nil, nil, err
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}
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internalAddrs, err := manager.NextInternalAddresses(
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ns, accountProps.AccountNumber, numAddrs,
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)
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if err != nil {
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return nil, nil, nil, err
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}
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// Refresh the account's properties after generating the addresses.
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accountProps, err = manager.AccountProperties(
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ns, accountProps.AccountNumber,
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)
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if err != nil {
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return nil, nil, nil, err
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}
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return accountProps, externalAddrs, internalAddrs, nil
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}
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}
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// ImportPublicKey imports a single derived public key into the address manager.
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// ImportPublicKey imports a single derived public key into the address manager.
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@ -178,6 +178,17 @@ func testImportAccount(t *testing.T, w *Wallet, tc *testCase, watchOnly bool,
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acct3ExternalPub, err := acct3ExternalExtPub.ECPubKey()
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acct3ExternalPub, err := acct3ExternalExtPub.ECPubKey()
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require.NoError(t, err)
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require.NoError(t, err)
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// Do a dry run import first and check that it results in the expected
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// addresses being derived.
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_, extAddrs, intAddrs, err := w.ImportAccountDryRun(
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name+"1", acct1Pub, root.ParentFingerprint(), &tc.addrType, 1,
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)
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require.NoError(t, err)
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require.Len(t, extAddrs, 1)
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require.Equal(t, tc.expectedAddr, extAddrs[0].Address().String())
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require.Len(t, intAddrs, 1)
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require.Equal(t, tc.expectedChangeAddr, intAddrs[0].Address().String())
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// Import the extended public keys into new accounts.
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// Import the extended public keys into new accounts.
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acct1, err := w.ImportAccount(
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acct1, err := w.ImportAccount(
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name+"1", acct1Pub, root.ParentFingerprint(), &tc.addrType,
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name+"1", acct1Pub, root.ParentFingerprint(), &tc.addrType,
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@ -228,12 +239,12 @@ func testImportAccount(t *testing.T, w *Wallet, tc *testCase, watchOnly bool,
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require.Equal(t, uint32(0), acct2.ImportedKeyCount)
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require.Equal(t, uint32(0), acct2.ImportedKeyCount)
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// Test address derivation.
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// Test address derivation.
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addr, err := w.NewAddress(acct1.AccountNumber, tc.expectedScope)
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extAddr, err := w.NewAddress(acct1.AccountNumber, tc.expectedScope)
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require.NoError(t, err)
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require.NoError(t, err)
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require.Equal(t, tc.expectedAddr, addr.String())
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require.Equal(t, tc.expectedAddr, extAddr.String())
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addr, err = w.NewChangeAddress(acct1.AccountNumber, tc.expectedScope)
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intAddr, err := w.NewChangeAddress(acct1.AccountNumber, tc.expectedScope)
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require.NoError(t, err)
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require.NoError(t, err)
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require.Equal(t, tc.expectedChangeAddr, addr.String())
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require.Equal(t, tc.expectedChangeAddr, intAddr.String())
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// Make sure the key count was increased.
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// Make sure the key count was increased.
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acct1, err = w.AccountProperties(tc.expectedScope, acct1.AccountNumber)
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acct1, err = w.AccountProperties(tc.expectedScope, acct1.AccountNumber)
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@ -243,7 +254,7 @@ func testImportAccount(t *testing.T, w *Wallet, tc *testCase, watchOnly bool,
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require.Equal(t, uint32(0), acct1.ImportedKeyCount)
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require.Equal(t, uint32(0), acct1.ImportedKeyCount)
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// Make sure we can't get private keys for the imported accounts.
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// Make sure we can't get private keys for the imported accounts.
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_, err = w.DumpWIFPrivateKey(addr)
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_, err = w.DumpWIFPrivateKey(intAddr)
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require.True(t, waddrmgr.IsError(err, waddrmgr.ErrWatchingOnly))
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require.True(t, waddrmgr.IsError(err, waddrmgr.ErrWatchingOnly))
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// Get the address info for the single key we imported.
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// Get the address info for the single key we imported.
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@ -258,13 +269,13 @@ func testImportAccount(t *testing.T, w *Wallet, tc *testCase, watchOnly bool,
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witnessProg, err := txscript.PayToAddrScript(witnessAddr)
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witnessProg, err := txscript.PayToAddrScript(witnessAddr)
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require.NoError(t, err)
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require.NoError(t, err)
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addr, err = btcutil.NewAddressScriptHash(
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intAddr, err = btcutil.NewAddressScriptHash(
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witnessProg, &chaincfg.TestNet3Params,
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witnessProg, &chaincfg.TestNet3Params,
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)
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)
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require.NoError(t, err)
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require.NoError(t, err)
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case waddrmgr.WitnessPubKey:
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case waddrmgr.WitnessPubKey:
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addr, err = btcutil.NewAddressWitnessPubKeyHash(
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intAddr, err = btcutil.NewAddressWitnessPubKeyHash(
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btcutil.Hash160(acct3ExternalPub.SerializeCompressed()),
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btcutil.Hash160(acct3ExternalPub.SerializeCompressed()),
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&chaincfg.TestNet3Params,
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&chaincfg.TestNet3Params,
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)
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)
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@ -274,7 +285,7 @@ func testImportAccount(t *testing.T, w *Wallet, tc *testCase, watchOnly bool,
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t.Fatalf("unhandled address type %v", tc.addrType)
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t.Fatalf("unhandled address type %v", tc.addrType)
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}
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}
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addrManaged, err := w.AddressInfo(addr)
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addrManaged, err := w.AddressInfo(intAddr)
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require.NoError(t, err)
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require.NoError(t, err)
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require.Equal(t, true, addrManaged.Imported())
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require.Equal(t, true, addrManaged.Imported())
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}
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}
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