func (this *StellarAccountMerge) GetSigned(seed string) string {

	tx := build.TransactionBuilder{}
	tx.TX = &xdr.Transaction{}
	opt := xdr.Operation{}
	srcAccID, _ := stellarbase.AddressToAccountId(this.SrcInfo.ID)
	destAccID, _ := stellarbase.AddressToAccountId(this.DestPublicAddr)

	opt.SourceAccount = &srcAccID
	opt.Body, _ = xdr.NewOperationBody(xdr.OperationTypeAccountMerge,
		destAccID)
	tx.TX.Operations = append(tx.TX.Operations, opt)

	tx.Mutate(build.Sequence{xdr.SequenceNumber(this.SrcInfo.NextSequence())})
	if STELLAR_DEFAULT_NETWORK == STELLAR_TEST_NETWORK {
		tx.Mutate(build.TestNetwork)
	} else {
		tx.Mutate(build.PublicNetwork)
	}
	tx.Mutate(build.SourceAccount{this.SrcInfo.ID})
	tx.TX.Fee = BASEMENT_FEE
	result := tx.Sign(seed)

	var err error

	this.signBase64, err = result.Base64()
	// fmt.Printf("tx base64: %s\r\n", this.signBase64)

	if err == nil {
		return this.signBase64
	}

	fmt.Println(err)
	return ""
}
// ExampleLowLevelTransaction creates and signs a simple transaction, and then
// encodes it into a hex string capable of being submitted to stellar-core.
//
// It uses the low-level xdr facilities to create the transaction.
func ExampleLowLevelTransaction() {
	spub, spriv, err := GenerateKeyFromSeed("s3Fy8h5LEcYVE8aofthKWHeJpygbntw5HgcekFw93K6XqTW4gEx")

	if err != nil {
		log.Fatal(err)
	}

	dpub, _, err := GenerateKeyFromSeed("sfkPCKA6XgaeHZH3NE57i3QrjVcw61c1noWQCgnHa6KJP2BrbXD")

	if err != nil {
		log.Fatal(err)
	}

	op := xdr.PaymentOp{
		Destination: dpub.KeyData(),
		Currency:    xdr.NewCurrencyCurrencyTypeNative(),
		Amount:      50 * 10000000,
	}

	tx := xdr.Transaction{
		SourceAccount: spub.KeyData(),
		Fee:           10,
		SeqNum:        xdr.SequenceNumber(1),
		Memo:          xdr.NewMemoMemoNone(),
		Operations: []xdr.Operation{
			{Body: xdr.NewOperationBodyPayment(op)},
		},
	}

	var txBytes bytes.Buffer
	_, err = xdr.Marshal(&txBytes, tx)
	if err != nil {
		log.Fatal(err)
	}

	txHash := Hash(txBytes.Bytes())
	signature := spriv.Sign(txHash[:])

	ds := xdr.DecoratedSignature{
		Hint:      spriv.Hint(),
		Signature: xdr.Uint512(signature),
	}

	txe := xdr.TransactionEnvelope{
		Tx:         tx,
		Signatures: []xdr.DecoratedSignature{ds},
	}

	var txeBytes bytes.Buffer
	_, err = xdr.Marshal(&txeBytes, txe)
	if err != nil {
		log.Fatal(err)
	}

	txeHex := hex.EncodeToString(txeBytes.Bytes())

	fmt.Printf("tx hex: %s", txeHex)
	// Output: tx hex: 3658fe7598d20c7a6de3297f84bc52bd2a1ec8c0f1f6c5b41cc1c7571b4331f00000000a000000000000000100000000000000000000000100000000000000012d24692ed08bbf679ba199448870d2191e876fecd92fdd9f6d274da4e6de134100000000000000001dcd650000000001dd302d0c0cee527cf02f6a0aec6916966298712914c63e3c57de74a6e27c29ea234a555fcc36533417afe4e1147815a42529fbca3429bc7caf0a06dc6b383ca6e9d4d80f
}
Exemple #3
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// SequenceForAccount implements build.SequenceProvider
func (c *Client) SequenceForAccount(
	accountID string,
) (xdr.SequenceNumber, error) {

	a, err := c.LoadAccount(accountID)
	if err != nil {
		return 0, err
	}

	seq, err := strconv.ParseUint(a.Sequence, 10, 64)
	if err != nil {
		return 0, err
	}

	return xdr.SequenceNumber(seq), nil
}
Exemple #4
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func (bot *Bot) makeTx(address string) (string, error) {
	bot.lock.Lock()
	bot.lock.Unlock()

	tx := Transaction(
		SourceAccount{bot.Secret},
		Sequence{xdr.SequenceNumber(bot.sequence + 1)},
		CreateAccount(
			Destination{address},
			NativeAmount{"10000.00"},
			Network{bot.Network},
		),
	)

	bot.sequence++

	txe := tx.Sign(bot.Secret)

	return txe.Base64()
}
func (this *StellarAccountCreateInfo) GetSigned(seed string) string {

	// _, spriv, _ := stellarbase.GenerateKeyFromSeed(seed)
	// kp,_ := keypair.Parse(seed)

	tx := build.TransactionBuilder{}

	ca := build.CreateAccountBuilder{}
	ca.Mutate(build.Destination{this.Destinaton})
	ca.Mutate(build.SourceAccount{this.SrcInfo.ID})
	ca.Mutate(build.NativeAmount{fmt.Sprintf("%f", this.Amount)})

	tx.Mutate(build.Sequence{xdr.SequenceNumber(this.SrcInfo.NextSequence())})
	if STELLAR_DEFAULT_NETWORK == STELLAR_TEST_NETWORK {
		tx.Mutate(build.TestNetwork)
	} else {
		tx.Mutate(build.PublicNetwork)
	}
	tx.Mutate(ca)
	tx.Mutate(build.SourceAccount{this.SrcInfo.ID})
	tx.TX.Fee = BASEMENT_FEE
	// result := tx.Sign(&spriv)
	result := tx.Sign(seed)

	var err error

	this.signBase64, err = result.Base64()
	// fmt.Printf("tx base64: %s\r\n", this.signBase64)

	if err == nil {
		return this.signBase64
	}

	fmt.Println(err)
	return ""
}
Exemple #6
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// MutateTransaction for Sequence sets the SeqNum on the transaction.
func (m Sequence) MutateTransaction(o *TransactionBuilder) error {
	o.TX.SeqNum = xdr.SequenceNumber(m.Sequence)
	return nil
}
// SignAndSubmitRawTransaction will:
// - update sequence number of the transaction to the current one,
// - sign it,
// - submit it to the network.
func (ts *TransactionSubmitter) SignAndSubmitRawTransaction(seed string, tx *xdr.Transaction) (response horizon.SubmitTransactionResponse, err error) {
	account, err := ts.GetAccount(seed)
	if err != nil {
		return
	}

	account.Mutex.Lock()
	account.SequenceNumber++
	tx.SeqNum = xdr.SequenceNumber(account.SequenceNumber)
	account.Mutex.Unlock()

	hash, err := TransactionHash(tx, ts.Network.Passphrase)
	if err != nil {
		ts.log.Print("Error calculating transaction hash")
		return
	}

	sig, err := account.Keypair.SignDecorated(hash[:])
	if err != nil {
		ts.log.Print("Error signing a transaction")
		return
	}

	envelopeXdr := xdr.TransactionEnvelope{
		Tx:         *tx,
		Signatures: []xdr.DecoratedSignature{sig},
	}

	txeB64, err := xdr.MarshalBase64(envelopeXdr)
	if err != nil {
		ts.log.Print("Cannot encode transaction envelope")
		return
	}

	transactionHashBytes, err := TransactionHash(tx, ts.Network.Passphrase)
	if err != nil {
		ts.log.WithFields(logrus.Fields{"err": err}).Warn("Error calculating tx hash")
		return
	}

	sentTransaction := &entities.SentTransaction{
		TransactionID: hex.EncodeToString(transactionHashBytes[:]),
		Status:        entities.SentTransactionStatusSending,
		Source:        account.Keypair.Address(),
		SubmittedAt:   ts.now(),
		EnvelopeXdr:   txeB64,
	}
	err = ts.EntityManager.Persist(sentTransaction)
	if err != nil {
		return
	}

	response, err = ts.Horizon.SubmitTransaction(txeB64)
	if err != nil {
		ts.log.Error("Error submitting transaction ", err)
		return
	}

	if response.Ledger != nil {
		sentTransaction.MarkSucceeded(*response.Ledger)
	} else {
		var result string
		if response.Extras != nil {
			result = response.Extras.ResultXdr
		} else {
			result = "<empty>"
		}
		sentTransaction.MarkFailed(result)
	}
	err = ts.EntityManager.Persist(sentTransaction)
	if err != nil {
		return
	}

	// Sync sequence number
	if response.Extras != nil && response.Extras.ResultXdr == "AAAAAAAAAAD////7AAAAAA==" {
		account.Mutex.Lock()
		ts.log.Print("Syncing sequence number for ", account.Keypair.Address())
		accountResponse, err2 := ts.Horizon.LoadAccount(account.Keypair.Address())
		if err2 != nil {
			ts.log.Error("Error updating sequence number ", err)
		} else {
			account.SequenceNumber, _ = strconv.ParseUint(accountResponse.SequenceNumber, 10, 64)
		}
		account.Mutex.Unlock()
	}
	return
}
Exemple #8
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// MutateTransaction for Sequence sets the SeqNum on the transaction.
func (m Sequence) MutateTransaction(o *xdr.Transaction) error {
	o.SeqNum = xdr.SequenceNumber(m.Sequence)
	return nil
}
Exemple #9
0
// ExampleLowLevelTransaction creates and signs a simple transaction, and then
// encodes it into a hex string capable of being submitted to stellar-core.
//
// It uses the low-level xdr facilities to create the transaction.
func ExampleLowLevelTransaction() {
	spub, spriv, err := GenerateKeyFromSeed("SA26PHIKZM6CXDGR472SSGUQQRYXM6S437ZNHZGRM6QA4FOPLLLFRGDX")

	if err != nil {
		panic(err)
	}

	dpub, _, err := GenerateKeyFromSeed("SBQHO2IMYKXAYJFCWGXC7YKLJD2EGDPSK3IUDHVJ6OOTTKLSCK6Z6POM")

	if err != nil {
		panic(err)
	}

	asset, err := xdr.NewAsset(xdr.AssetTypeAssetTypeNative, nil)
	if err != nil {
		panic(err)
	}

	destination, err := AddressToAccountId(dpub.Address())
	if err != nil {
		panic(err)
	}

	op := xdr.PaymentOp{
		Destination: destination,
		Asset:       asset,
		Amount:      50 * 10000000,
	}

	memo, err := xdr.NewMemo(xdr.MemoTypeMemoNone, nil)

	source, err := AddressToAccountId(spub.Address())
	if err != nil {
		panic(err)
	}

	body, err := xdr.NewOperationBody(xdr.OperationTypePayment, op)
	if err != nil {
		panic(err)
	}

	tx := xdr.Transaction{
		SourceAccount: source,
		Fee:           10,
		SeqNum:        xdr.SequenceNumber(1),
		Memo:          memo,
		Operations: []xdr.Operation{
			{Body: body},
		},
	}

	var txBytes bytes.Buffer
	_, err = xdr.Marshal(&txBytes, tx)
	if err != nil {
		panic(err)
	}

	txHash := Hash(txBytes.Bytes())
	signature := spriv.Sign(txHash[:])

	ds := xdr.DecoratedSignature{
		Hint:      spriv.Hint(),
		Signature: xdr.Signature(signature[:]),
	}

	txe := xdr.TransactionEnvelope{
		Tx:         tx,
		Signatures: []xdr.DecoratedSignature{ds},
	}

	var txeBytes bytes.Buffer
	_, err = xdr.Marshal(&txeBytes, txe)
	if err != nil {
		panic(err)
	}
	txeB64 := base64.StdEncoding.EncodeToString(txeBytes.Bytes())

	fmt.Printf("tx base64: %s", txeB64)
	// Output: tx base64: AAAAAAU08yUQ8sHqhY8j9mXWwERfHC/3cKFSe/spAr0rGtO2AAAACgAAAAAAAAABAAAAAAAAAAAAAAABAAAAAAAAAAEAAAAA+fnTe7/v4whpBUx96oj92jfZPz7S00l3O2xeyeqWIA0AAAAAAAAAAB3NZQAAAAAAAAAAATXnnQoAAABAieruUIGcQH6RlQ+prYflPFU3nED2NvWhtaC+tgnKsqgiKURK4xo/W7EgH0+I6aQok52awbE+ksOxEQ5MLJ9eAw==
}