multi: check for used addresses

client/asset/bch/spv.go

@@ -792,6 +792,18 @@ func (w *bchSPVWallet) RemovePeer(addr string) error {
 	return w.peerManager.RemovePeer(addr)
 }
 
+func (w *bchSPVWallet) TotalReceivedForAddr(btcAddr btcutil.Address, minConf int32) (btcutil.Amount, error) {
+	bchAddr, err := dexbch.BTCAddrToBCHAddr(btcAddr, w.btcParams)
+	if err != nil {
+		return 0, err
+	}
+	amt, err := w.Wallet.TotalReceivedForAddr(bchAddr, 0)
+	if err != nil {
+		return 0, err
+	}
+	return btcutil.Amount(amt), nil
+}
+
 // secretSource is used to locate keys and redemption scripts while signing a
 // transaction. secretSource satisfies the txauthor.SecretsSource interface.
 type secretSource struct {

client/asset/btc/btc.go

@@ -931,6 +931,7 @@ var _ asset.Authenticator = (*ExchangeWalletAccelerator)(nil)
 var _ asset.Authenticator = (*ExchangeWalletCustom)(nil)
 var _ asset.AddressReturner = (*baseWallet)(nil)
 var _ asset.WalletHistorian = (*ExchangeWalletSPV)(nil)
+var _ asset.NewAddresser = (*baseWallet)(nil)
 
 // RecoveryCfg is the information that is transferred from the old wallet
 // to the new one when the wallet is recovered.
@@ -4494,6 +4495,11 @@ func (btc *baseWallet) NewAddress() (string, error) {
 	return btc.DepositAddress()
 }
 
+// AddressUsed checks if a wallet address has been used.
+func (btc *baseWallet) AddressUsed(addrStr string) (bool, error) {
+	return btc.node.AddressUsed(addrStr)
+}
+
 // Withdraw withdraws funds to the specified address. Fees are subtracted from
 // the value. feeRate is in units of sats/byte.
 // Withdraw satisfies asset.Withdrawer.

client/asset/btc/electrum_client.go

@@ -1211,3 +1211,11 @@ func (ew *electrumWallet) findOutputSpender(ctx context.Context, txHash *chainha
 
 	return nil, 0, nil // caller should check msgTx (internal method)
 }
+
+func (ew *electrumWallet) AddressUsed(addrStr string) (bool, error) {
+	txs, err := ew.wallet.GetAddressHistory(ew.ctx, addrStr)
+	if err != nil {
+		return false, fmt.Errorf("error getting address history: %w", err)
+	}
+	return len(txs) > 0, nil
+}

client/asset/btc/rpcclient.go

@@ -29,38 +29,39 @@ import (
 )
 
 const (
-	methodGetBalances        = "getbalances"
-	methodGetBalance         = "getbalance"
-	methodListUnspent        = "listunspent"
-	methodLockUnspent        = "lockunspent"
-	methodListLockUnspent    = "listlockunspent"
-	methodChangeAddress      = "getrawchangeaddress"
-	methodNewAddress         = "getnewaddress"
-	methodSignTx             = "signrawtransactionwithwallet"
-	methodSignTxLegacy       = "signrawtransaction"
-	methodUnlock             = "walletpassphrase"
-	methodLock               = "walletlock"
-	methodPrivKeyForAddress  = "dumpprivkey"
-	methodGetTransaction     = "gettransaction"
-	methodSendToAddress      = "sendtoaddress"
-	methodSetTxFee           = "settxfee"
-	methodGetWalletInfo      = "getwalletinfo"
-	methodGetAddressInfo     = "getaddressinfo"
-	methodListDescriptors    = "listdescriptors"
-	methodValidateAddress    = "validateaddress"
-	methodEstimateSmartFee   = "estimatesmartfee"
-	methodSendRawTransaction = "sendrawtransaction"
-	methodGetTxOut           = "gettxout"
-	methodGetBlock           = "getblock"
-	methodGetBlockHash       = "getblockhash"
-	methodGetBestBlockHash   = "getbestblockhash"
-	methodGetRawMempool      = "getrawmempool"
-	methodGetRawTransaction  = "getrawtransaction"
-	methodGetBlockHeader     = "getblockheader"
-	methodGetNetworkInfo     = "getnetworkinfo"
-	methodGetBlockchainInfo  = "getblockchaininfo"
-	methodFundRawTransaction = "fundrawtransaction"
-	methodListSinceBlock     = "listsinceblock"
+	methodGetBalances          = "getbalances"
+	methodGetBalance           = "getbalance"
+	methodListUnspent          = "listunspent"
+	methodLockUnspent          = "lockunspent"
+	methodListLockUnspent      = "listlockunspent"
+	methodChangeAddress        = "getrawchangeaddress"
+	methodNewAddress           = "getnewaddress"
+	methodSignTx               = "signrawtransactionwithwallet"
+	methodSignTxLegacy         = "signrawtransaction"
+	methodUnlock               = "walletpassphrase"
+	methodLock                 = "walletlock"
+	methodPrivKeyForAddress    = "dumpprivkey"
+	methodGetTransaction       = "gettransaction"
+	methodSendToAddress        = "sendtoaddress"
+	methodSetTxFee             = "settxfee"
+	methodGetWalletInfo        = "getwalletinfo"
+	methodGetAddressInfo       = "getaddressinfo"
+	methodListDescriptors      = "listdescriptors"
+	methodValidateAddress      = "validateaddress"
+	methodEstimateSmartFee     = "estimatesmartfee"
+	methodSendRawTransaction   = "sendrawtransaction"
+	methodGetTxOut             = "gettxout"
+	methodGetBlock             = "getblock"
+	methodGetBlockHash         = "getblockhash"
+	methodGetBestBlockHash     = "getbestblockhash"
+	methodGetRawMempool        = "getrawmempool"
+	methodGetRawTransaction    = "getrawtransaction"
+	methodGetBlockHeader       = "getblockheader"
+	methodGetNetworkInfo       = "getnetworkinfo"
+	methodGetBlockchainInfo    = "getblockchaininfo"
+	methodFundRawTransaction   = "fundrawtransaction"
+	methodListSinceBlock       = "listsinceblock"
+	methodGetReceivedByAddress = "getreceivedbyaddress"
 )
 
 // IsTxNotFoundErr will return true if the error indicates that the requested
@@ -1180,6 +1181,15 @@ func SearchBlockForRedemptions(
 	return
 }
 
+func (wc *rpcClient) AddressUsed(addr string) (bool, error) {
+	var recv float64
+	const minConf = 0
+	if err := wc.call(methodGetReceivedByAddress, []any{addr, minConf}, &recv); err != nil {
+		return false, err
+	}
+	return recv != 0, nil
+}
+
 // call is used internally to marshal parameters and send requests to the RPC
 // server via (*rpcclient.Client).RawRequest. If thing is non-nil, the result
 // will be marshaled into thing.

client/asset/btc/spv_test.go

@@ -342,6 +342,10 @@ func (c *tBtcWallet) RemovePeer(string) error {
 	return nil
 }
 
+func (c *tBtcWallet) TotalReceivedForAddr(addr btcutil.Address, minConf int32) (btcutil.Amount, error) {
+	return 0, nil
+}
+
 type tNeutrinoClient struct {
 	*testData
 }

client/asset/btc/spv_wrapper.go

@@ -115,6 +115,13 @@ type BTCWallet interface {
 	AddPeer(string) error
 	RemovePeer(string) error
 	GetTransactions(startHeight, endHeight int32, accountName string, cancel <-chan struct{}) (*wallet.GetTransactionsResult, error)
+	ListSinceBlock(start, end, syncHeight int32) ([]btcjson.ListTransactionsResult, error)
+	TotalReceivedForAddr(addr btcutil.Address, minConf int32) (btcutil.Amount, error)
+}
+
+type XCWalletAccount struct {
+	AccountName   string
+	AccountNumber uint32
 }
 
 // BlockNotification is block hash and height delivered by a BTCWallet when it
@@ -1309,6 +1316,20 @@ func (w *spvWallet) GetWalletTransaction(txHash *chainhash.Hash) (*GetTransactio
 	*/
 }
 
+func (w *spvWallet) AddressUsed(addrStr string) (bool, error) {
+	addr, err := w.decodeAddr(addrStr, w.chainParams)
+	if err != nil {
+		return false, fmt.Errorf("error decoding address: %w", err)
+	}
+
+	const minConfs = 0
+	amt, err := w.wallet.TotalReceivedForAddr(addr, minConfs)
+	if err != nil {
+		return false, fmt.Errorf("error getting address received: %v", err)
+	}
+	return amt != 0, nil
+}
+
 func confirms(txHeight, curHeight int32) int32 {
 	switch {
 	case txHeight == -1, txHeight > curHeight:

client/asset/btc/wallet.go

@@ -45,6 +45,7 @@ type Wallet interface {
 	Reconfigure(walletCfg *asset.WalletConfig, currentAddress string) (restartRequired bool, err error)
 	Fingerprint() (string, error)
 	ListTransactionsSinceBlock(blockHeight int32) ([]*ListTransactionsResult, error)
+	AddressUsed(addr string) (bool, error)
 }
 
 type TipRedemptionWallet interface {

client/asset/dcr/dcr.go

@@ -707,6 +707,7 @@ var _ asset.Bonder = (*ExchangeWallet)(nil)
 var _ asset.Authenticator = (*ExchangeWallet)(nil)
 var _ asset.TicketBuyer = (*ExchangeWallet)(nil)
 var _ asset.WalletHistorian = (*ExchangeWallet)(nil)
+var _ asset.NewAddresser = (*ExchangeWallet)(nil)
 
 type block struct {
 	height int64
@@ -4127,6 +4128,11 @@ func (dcr *ExchangeWallet) NewAddress() (string, error) {
 	return dcr.DepositAddress()
 }
 
+// AddressUsed checks if a wallet address has been used.
+func (dcr *ExchangeWallet) AddressUsed(addrStr string) (bool, error) {
+	return dcr.wallet.AddressUsed(dcr.ctx, addrStr)
+}
+
 // Unlock unlocks the exchange wallet.
 func (dcr *ExchangeWallet) Unlock(pw []byte) error {
 	// Older SPV wallet potentially need an upgrade while we have a password.

client/asset/dcr/dcr_test.go

@@ -721,6 +721,10 @@ func (c *tRPCClient) SetTxFee(ctx context.Context, fee dcrutil.Amount) error {
 	return nil
 }
 
+func (c *tRPCClient) GetReceivedByAddressMinConf(ctx context.Context, address stdaddr.Address, minConfs int) (dcrutil.Amount, error) {
+	return 0, nil
+}
+
 func (c *tRPCClient) ListSinceBlock(ctx context.Context, hash *chainhash.Hash) (*walletjson.ListSinceBlockResult, error) {
 	return nil, nil
 }

client/asset/dcr/rpcwallet.go

@@ -156,6 +156,7 @@ type rpcClient interface {
 	SetVoteChoice(ctx context.Context, agendaID, choiceID string) error
 	SetTxFee(ctx context.Context, fee dcrutil.Amount) error
 	ListSinceBlock(ctx context.Context, hash *chainhash.Hash) (*walletjson.ListSinceBlockResult, error)
+	GetReceivedByAddressMinConf(ctx context.Context, address stdaddr.Address, minConfs int) (dcrutil.Amount, error)
 }
 
 // newRPCWallet creates an rpcClient and uses it to construct a new instance
@@ -1217,6 +1218,19 @@ func (w *rpcWallet) SetTxFee(ctx context.Context, feePerKB dcrutil.Amount) error
 	return w.rpcClient.SetTxFee(ctx, feePerKB)
 }
 
+func (w *rpcWallet) AddressUsed(ctx context.Context, addrStr string) (bool, error) {
+	addr, err := stdaddr.DecodeAddress(addrStr, w.chainParams)
+	if err != nil {
+		return false, err
+	}
+	const minConf = 0
+	recv, err := w.rpcClient.GetReceivedByAddressMinConf(ctx, addr, minConf)
+	if err != nil {
+		return false, err
+	}
+	return recv != 0, nil
+}
+
 // anylist is a list of RPC parameters to be converted to []json.RawMessage and
 // sent via nodeRawRequest.
 type anylist []any

client/asset/dcr/spv.go

@@ -105,6 +105,7 @@ type dcrWallet interface {
 	NewVSPTicket(ctx context.Context, hash *chainhash.Hash) (*wallet.VSPTicket, error)
 	RescanProgressFromHeight(ctx context.Context, n wallet.NetworkBackend, startHeight int32, p chan<- wallet.RescanProgress)
 	RescanPoint(ctx context.Context) (*chainhash.Hash, error)
+	TotalReceivedForAddr(ctx context.Context, addr stdaddr.Address, minConf int32) (dcrutil.Amount, error)
 }
 
 // Interface for *spv.Syncer so that we can test with a stub.
@@ -1410,6 +1411,19 @@ func (w *spvWallet) SetTxFee(_ context.Context, feePerKB dcrutil.Amount) error {
 	return nil
 }
 
+func (w *spvWallet) AddressUsed(ctx context.Context, addrStr string) (bool, error) {
+	addr, err := stdaddr.DecodeAddress(addrStr, w.chainParams)
+	if err != nil {
+		return false, err
+	}
+	const minConf = 0
+	recv, err := w.TotalReceivedForAddr(ctx, addr, minConf)
+	if err != nil {
+		return false, err
+	}
+	return recv != 0, nil
+}
+
 // cacheBlock caches a block for future use. The block has a lastAccess stamp
 // added, and will be discarded if not accessed again within 2 hours.
 func (w *spvWallet) cacheBlock(block *wire.MsgBlock) {

client/asset/dcr/spv_test.go

@@ -430,6 +430,10 @@ func (w *tDcrWallet) RescanPoint(ctx context.Context) (*chainhash.Hash, error) {
 	return nil, nil
 }
 
+func (w *tDcrWallet) TotalReceivedForAddr(ctx context.Context, addr stdaddr.Address, minConf int32) (dcrutil.Amount, error) {
+	return 0, nil
+}
+
 func tNewSpvWallet() (*spvWallet, *tDcrWallet) {
 	dcrw := &tDcrWallet{
 		blockInfo:      make(map[int32]*wallet.BlockInfo),

client/asset/dcr/wallet.go

@@ -176,6 +176,7 @@ type Wallet interface {
 	StakeInfo(ctx context.Context) (*wallet.StakeInfoData, error)
 	Reconfigure(ctx context.Context, cfg *asset.WalletConfig, net dex.Network, currentAddress string) (restart bool, err error)
 	WalletOwnsAddress(ctx context.Context, addr stdaddr.Address) (bool, error)
+	AddressUsed(ctx context.Context, addrStr string) (bool, error)
 }
 
 // WalletTransaction is a pared down version of walletjson.GetTransactionResult.

client/asset/interface.go

@@ -703,6 +703,7 @@ type Sweeper interface {
 // NewAddresser is a wallet that can generate new deposit addresses.
 type NewAddresser interface {
 	NewAddress() (string, error)
+	AddressUsed(string) (bool, error)
 }
 
 // AddressReturner is a wallet that allows recycling of unused redemption or refund

client/asset/ltc/spv.go

@@ -829,6 +829,18 @@ func (w *ltcSPVWallet) RemovePeer(addr string) error {
 	return w.peerManager.RemovePeer(addr)
 }
 
+func (w *ltcSPVWallet) TotalReceivedForAddr(btcAddr btcutil.Address, minConf int32) (btcutil.Amount, error) {
+	ltcAddr, err := w.addrBTC2LTC(btcAddr)
+	if err != nil {
+		return 0, err
+	}
+	amt, err := w.Wallet.TotalReceivedForAddr(ltcAddr, 0)
+	if err != nil {
+		return 0, err
+	}
+	return btcutil.Amount(amt), nil
+}
+
 // secretSource is used to locate keys and redemption scripts while signing a
 // transaction. secretSource satisfies the txauthor.SecretsSource interface.
 type secretSource struct {

client/asset/zec/transparent_rpc.go

@@ -410,3 +410,9 @@ func walletInfo(c rpcCaller) (*walletInfoRes, error) {
 	}
 	return &res, nil
 }
+
+func getReceivedByAddress(c rpcCaller, addrStr string) (recv uint64, _ error) {
+	const minConf = 0
+	const inZats = true
+	return recv, c.CallRPC("getreceivedbyaddress", []any{addrStr, minConf, inZats}, &recv)
+}

client/asset/zec/zec.go

@@ -336,6 +336,7 @@ type zecWallet struct {
 var _ asset.FeeRater = (*zecWallet)(nil)
 var _ asset.Wallet = (*zecWallet)(nil)
 var _ asset.WalletHistorian = (*zecWallet)(nil)
+var _ asset.NewAddresser = (*zecWallet)(nil)
 
 // TODO: Implement LiveReconfigurer
 // var _ asset.LiveReconfigurer = (*zecWallet)(nil)
@@ -1680,6 +1681,13 @@ func (w *zecWallet) NewAddress() (string, error) {
 	return w.DepositAddress()
 }
 
+// AddressUsed checks if a wallet address has been used.
+func (w *zecWallet) AddressUsed(addrStr string) (bool, error) {
+	// TODO: Resolve with new unified address encoding in https://github.com/decred/dcrdex/pull/2675
+	recv, err := getReceivedByAddress(w, addrStr)
+	return recv != 0, err
+}
+
 func (w *zecWallet) FindRedemption(ctx context.Context, coinID, contract dex.Bytes) (redemptionCoin, secret dex.Bytes, err error) {
 	return w.rf.FindRedemption(ctx, coinID)
 }

client/core/core.go

@@ -4012,6 +4012,21 @@ func (c *Core) NewDepositAddress(assetID uint32) (string, error) {
 	return addr, nil
 }
 
+// AddressUsed checks whether an address for a NewAddresser has been used.
+func (c *Core) AddressUsed(assetID uint32, addr string) (bool, error) {
+	w, exists := c.wallet(assetID)
+	if !exists {
+		return false, newError(missingWalletErr, "no wallet found for %s", unbip(assetID))
+	}
+
+	na, ok := w.Wallet.(asset.NewAddresser)
+	if !ok {
+		return false, errors.New("wallet is not a NewAddresser")
+	}
+
+	return na.AddressUsed(addr)
+}
+
 // AutoWalletConfig attempts to load setting from a wallet package's
 // asset.WalletInfo.DefaultConfigPath. If settings are not found, an empty map
 // is returned.

client/core/core_test.go

@@ -914,6 +914,10 @@ func (w *TXCWallet) NewAddress() (string, error) {
 	return "", w.addrErr
 }
 
+func (w *TXCWallet) AddressUsed(addr string) (bool, error) {
+	return false, nil
+}
+
 func (w *TXCWallet) Unlock(pw []byte) error {
 	return w.unlockErr
 }