Example #1
0
func init() {
	tx := spendOutput(&wire.ShaHash{}, 0, 10e8)
	rec, err := wtxmgr.NewTxRecordFromMsgTx(tx, timeNow())
	if err != nil {
		panic(err)
	}
	exampleTxRecordA = rec

	tx = spendOutput(&exampleTxRecordA.Hash, 0, 5e8, 5e8)
	rec, err = wtxmgr.NewTxRecordFromMsgTx(tx, timeNow())
	if err != nil {
		panic(err)
	}
	exampleTxRecordB = rec
}
Example #2
0
// TstCreateCreditsOnStore inserts a new credit in the given store for
// every item in the amounts slice.
func TstCreateCreditsOnStore(t *testing.T, s *wtxmgr.Store, pkScript []byte,
	amounts []int64) []wtxmgr.Credit {
	msgTx := createMsgTx(pkScript, amounts)
	meta := &wtxmgr.BlockMeta{
		Block: wtxmgr.Block{Height: TstInputsBlock},
	}

	rec, err := wtxmgr.NewTxRecordFromMsgTx(msgTx, time.Now())
	if err != nil {
		t.Fatal(err)
	}

	if err := s.InsertTx(rec, meta); err != nil {
		t.Fatal("Failed to create inputs: ", err)
	}

	credits := make([]wtxmgr.Credit, len(msgTx.TxOut))
	for i := range msgTx.TxOut {
		if err := s.AddCredit(rec, meta, uint32(i), false); err != nil {
			t.Fatal("Failed to create inputs: ", err)
		}
		credits[i] = wtxmgr.Credit{
			OutPoint: wire.OutPoint{
				Hash:  rec.Hash,
				Index: uint32(i),
			},
			BlockMeta: *meta,
			Amount:    btcutil.Amount(msgTx.TxOut[i].Value),
			PkScript:  msgTx.TxOut[i].PkScript,
		}
	}
	return credits
}
Example #3
0
// SendPairs creates and sends payment transactions. It returns the transaction
// hash upon success
func (w *Wallet) SendPairs(amounts map[string]btcutil.Amount, account uint32,
	minconf int32) (*wire.ShaHash, error) {

	// Create transaction, replying with an error if the creation
	// was not successful.
	createdTx, err := w.CreateSimpleTx(account, amounts, minconf)
	if err != nil {
		return nil, err
	}

	// Create transaction record and insert into the db.
	rec, err := wtxmgr.NewTxRecordFromMsgTx(createdTx.MsgTx, time.Now())
	if err != nil {
		log.Errorf("Cannot create record for created transaction: %v", err)
		return nil, err
	}
	err = w.TxStore.InsertTx(rec, nil)
	if err != nil {
		log.Errorf("Error adding sent tx history: %v", err)
		return nil, err
	}

	if createdTx.ChangeIndex >= 0 {
		err = w.TxStore.AddCredit(rec, nil, uint32(createdTx.ChangeIndex), true)
		if err != nil {
			log.Errorf("Error adding change address for sent "+
				"tx: %v", err)
			return nil, err
		}
	}

	// TODO: The record already has the serialized tx, so no need to
	// serialize it again.
	return w.chainSvr.SendRawTransaction(&rec.MsgTx, false)
}
Example #4
0
// SendBitcoin sends some amount of bitcoin specifying minimum confirmations.
func (w *Wallet) SendBitcoin(amounts map[string]btcutil.Amount, minconf int) error {
	account, err := w.wallet.Manager.LastAccount()
	if err != nil {
		return err
	}

	log.Printf("creating tx")

	// TODO: make this work

	// taken from https://github.com/btcsuite/btcwallet/blob/master/wallet/wallet.go SendPairs

	// Create transaction, replying with an error if the creation
	// was not successful.
	createdTx, err := w.wallet.CreateSimpleTx(account, amounts, int32(minconf))
	if err != nil {
		return err
	}

	log.Printf("created tx %#v", createdTx)

	// Create transaction record and insert into the db.
	rec, err := wtxmgr.NewTxRecordFromMsgTx(createdTx.MsgTx, time.Now())
	if err != nil {
		log.Printf("Cannot create record for created transaction: %v", err)
		return err
	}
	log.Printf("new txrecord %#v", rec)
	err = w.wallet.TxStore.InsertTx(rec, nil)
	if err != nil {
		log.Printf("Error adding sent tx history: %v", err)
		return err
	}
	log.Printf("inserted tx")

	if createdTx.ChangeIndex >= 0 {
		err = w.wallet.TxStore.AddCredit(rec, nil, uint32(createdTx.ChangeIndex), true)
		if err != nil {
			log.Printf("Error adding change address for sent "+"tx: %v", err)
			return err
		}
	}

	log.Printf("broadcasting")

	resp, err := w.node.BlockchainTransactionBroadcast(rec.SerializedTx)
	if err != nil {
		return err
	}

	log.Printf("RESP broadcast %#v", resp)

	return nil
}
Example #5
0
func (tx *changeAwareTx) addSelfToStore(store *wtxmgr.Store) error {
	rec, err := wtxmgr.NewTxRecordFromMsgTx(tx.MsgTx, time.Now())
	if err != nil {
		return newError(ErrWithdrawalTxStorage, "error constructing TxRecord for storing", err)
	}

	if err := store.InsertTx(rec, nil); err != nil {
		return newError(ErrWithdrawalTxStorage, "error adding tx to store", err)
	}
	if tx.changeIdx != -1 {
		if err = store.AddCredit(rec, nil, uint32(tx.changeIdx), true); err != nil {
			return newError(ErrWithdrawalTxStorage, "error adding tx credits to store", err)
		}
	}
	return nil
}
Example #6
0
// SignTx signs every input of the given MsgTx by looking up (on the addr
// manager) the redeem script for each of them and constructing the signature
// script using that and the given raw signatures.
// This function must be called with the manager unlocked.
func SignTx(msgtx *wire.MsgTx, sigs TxSigs, mgr *waddrmgr.Manager, store *wtxmgr.Store) error {
	// We use time.Now() here as we're not going to store the new TxRecord
	// anywhere -- we just need it to pass to store.PreviousPkScripts().
	rec, err := wtxmgr.NewTxRecordFromMsgTx(msgtx, time.Now())
	if err != nil {
		return newError(ErrTxSigning, "failed to construct TxRecord for signing", err)
	}
	pkScripts, err := store.PreviousPkScripts(rec, nil)
	if err != nil {
		return newError(ErrTxSigning, "failed to obtain pkScripts for signing", err)
	}
	for i, pkScript := range pkScripts {
		if err = signMultiSigUTXO(mgr, msgtx, i, pkScript, sigs[i]); err != nil {
			return err
		}
	}
	return nil
}
Example #7
0
func (c *RPCClient) onRecvTx(tx *btcutil.Tx, block *btcjson.BlockDetails) {
	blk, err := parseBlock(block)
	if err != nil {
		// Log and drop improper notification.
		log.Errorf("recvtx notification bad block: %v", err)
		return
	}

	rec, err := wtxmgr.NewTxRecordFromMsgTx(tx.MsgTx(), time.Now())
	if err != nil {
		log.Errorf("Cannot create transaction record for relevant "+
			"tx: %v", err)
		return
	}
	select {
	case c.enqueueNotification <- RelevantTx{rec, blk}:
	case <-c.quit:
	}
}
Example #8
0
func loadTestCredits(w *LightningWallet, numOutputs, btcPerOutput int) error {
	// Import the priv key (converting to WIF) above that controls all our
	// available outputs.
	privKey, _ := btcec.PrivKeyFromBytes(btcec.S256(), testWalletPrivKey)
	if err := w.Unlock(privPass, time.Duration(0)); err != nil {
		return err
	}
	bs := &waddrmgr.BlockStamp{Hash: *genBlockHash(1), Height: 1}
	wif, err := btcutil.NewWIF(privKey, ActiveNetParams, true)
	if err != nil {
		return err
	}
	if _, err := w.ImportPrivateKey(wif, bs, false); err != nil {
		return nil
	}
	if err := w.Manager.SetSyncedTo(&waddrmgr.BlockStamp{int32(1), *genBlockHash(1)}); err != nil {
		return err
	}

	blk := wtxmgr.BlockMeta{wtxmgr.Block{Hash: *genBlockHash(2), Height: 2}, time.Now()}

	// Create a simple P2PKH pubkey script spendable by Alice. For simplicity
	// all of Alice's spendable funds will reside in this output.
	satosihPerOutput := int64(btcPerOutput * 1e8)
	walletAddr, err := btcutil.NewAddressPubKey(privKey.PubKey().SerializeCompressed(),
		ActiveNetParams)
	if err != nil {
		return err
	}
	walletScriptCredit, err := txscript.PayToAddrScript(walletAddr.AddressPubKeyHash())
	if err != nil {
		return err
	}

	// Create numOutputs outputs spendable by our wallet each holding btcPerOutput
	// in satoshis.
	tx := wire.NewMsgTx()
	prevOut := wire.NewOutPoint(genBlockHash(999), 1)
	txIn := wire.NewTxIn(prevOut, []byte{txscript.OP_0, txscript.OP_0})
	tx.AddTxIn(txIn)
	for i := 0; i < numOutputs; i++ {
		tx.AddTxOut(wire.NewTxOut(satosihPerOutput, walletScriptCredit))
	}
	txCredit, err := wtxmgr.NewTxRecordFromMsgTx(tx, time.Now())
	if err != nil {
		return err
	}

	if err := addTestTx(w, txCredit, &blk); err != nil {
		return err
	}
	if err := w.Manager.SetSyncedTo(&waddrmgr.BlockStamp{int32(2), *genBlockHash(2)}); err != nil {
		return err
	}

	// Make the wallet think it's been synced to block 10. This way the
	// outputs we added above will have sufficient confirmations
	// (hard coded to 6 atm).
	for i := 3; i < 10; i++ {
		sha := *genBlockHash(i)
		if err := w.Manager.SetSyncedTo(&waddrmgr.BlockStamp{int32(i), sha}); err != nil {
			return err
		}
	}

	return nil
}