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rawtransactions.go
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// Copyright (c) 2014-2017 The btcsuite developers
// Copyright (c) 2018-2019 The Soteria DAG developers
// Use of this source code is governed by an ISC
// license that can be found in the LICENSE file.
package rpcclient
import (
"bytes"
"encoding/hex"
"encoding/json"
"github.com/totaloutput/soterd/soterjson"
"github.com/totaloutput/soterd/chaincfg/chainhash"
"github.com/totaloutput/soterd/wire"
"github.com/totaloutput/soterd/soterutil"
)
// SigHashType enumerates the available signature hashing types that the
// SignRawTransaction function accepts.
type SigHashType string
// Constants used to indicate the signature hash type for SignRawTransaction.
const (
// SigHashAll indicates ALL of the outputs should be signed.
SigHashAll SigHashType = "ALL"
// SigHashNone indicates NONE of the outputs should be signed. This
// can be thought of as specifying the signer does not care where the
// soter tokens go.
SigHashNone SigHashType = "NONE"
// SigHashSingle indicates that a SINGLE output should be signed. This
// can be thought of specifying the signer only cares about where ONE of
// the outputs goes, but not any of the others.
SigHashSingle SigHashType = "SINGLE"
// SigHashAllAnyoneCanPay indicates that signer does not care where the
// other inputs to the transaction come from, so it allows other people
// to add inputs. In addition, it uses the SigHashAll signing method
// for outputs.
SigHashAllAnyoneCanPay SigHashType = "ALL|ANYONECANPAY"
// SigHashNoneAnyoneCanPay indicates that signer does not care where the
// other inputs to the transaction come from, so it allows other people
// to add inputs. In addition, it uses the SigHashNone signing method
// for outputs.
SigHashNoneAnyoneCanPay SigHashType = "NONE|ANYONECANPAY"
// SigHashSingleAnyoneCanPay indicates that signer does not care where
// the other inputs to the transaction come from, so it allows other
// people to add inputs. In addition, it uses the SigHashSingle signing
// method for outputs.
SigHashSingleAnyoneCanPay SigHashType = "SINGLE|ANYONECANPAY"
)
// String returns the SighHashType in human-readable form.
func (s SigHashType) String() string {
return string(s)
}
// FutureGetRawTransactionResult is a future promise to deliver the result of a
// GetRawTransactionAsync RPC invocation (or an applicable error).
type FutureGetRawTransactionResult chan *response
// Receive waits for the response promised by the future and returns a
// transaction given its hash.
func (r FutureGetRawTransactionResult) Receive() (*soterutil.Tx, error) {
res, err := receiveFuture(r)
if err != nil {
return nil, err
}
// Unmarshal result as a string.
var txHex string
err = json.Unmarshal(res, &txHex)
if err != nil {
return nil, err
}
// Decode the serialized transaction hex to raw bytes.
serializedTx, err := hex.DecodeString(txHex)
if err != nil {
return nil, err
}
// Deserialize the transaction and return it.
var msgTx wire.MsgTx
if err := msgTx.Deserialize(bytes.NewReader(serializedTx)); err != nil {
return nil, err
}
return soterutil.NewTx(&msgTx), nil
}
// GetRawTransactionAsync returns an instance of a type that can be used to get
// the result of the RPC at some future time by invoking the Receive function on
// the returned instance.
//
// See GetRawTransaction for the blocking version and more details.
func (c *Client) GetRawTransactionAsync(txHash *chainhash.Hash) FutureGetRawTransactionResult {
hash := ""
if txHash != nil {
hash = txHash.String()
}
cmd := soterjson.NewGetRawTransactionCmd(hash, soterjson.Int(0))
return c.sendCmd(cmd)
}
// GetRawTransaction returns a transaction given its hash.
//
// See GetRawTransactionVerbose to obtain additional information about the
// transaction.
func (c *Client) GetRawTransaction(txHash *chainhash.Hash) (*soterutil.Tx, error) {
return c.GetRawTransactionAsync(txHash).Receive()
}
// FutureGetRawTransactionVerboseResult is a future promise to deliver the
// result of a GetRawTransactionVerboseAsync RPC invocation (or an applicable
// error).
type FutureGetRawTransactionVerboseResult chan *response
// Receive waits for the response promised by the future and returns information
// about a transaction given its hash.
func (r FutureGetRawTransactionVerboseResult) Receive() (*soterjson.TxRawResult, error) {
res, err := receiveFuture(r)
if err != nil {
return nil, err
}
// Unmarshal result as a gettrawtransaction result object.
var rawTxResult soterjson.TxRawResult
err = json.Unmarshal(res, &rawTxResult)
if err != nil {
return nil, err
}
return &rawTxResult, nil
}
// GetRawTransactionVerboseAsync returns an instance of a type that can be used
// to get the result of the RPC at some future time by invoking the Receive
// function on the returned instance.
//
// See GetRawTransactionVerbose for the blocking version and more details.
func (c *Client) GetRawTransactionVerboseAsync(txHash *chainhash.Hash) FutureGetRawTransactionVerboseResult {
hash := ""
if txHash != nil {
hash = txHash.String()
}
cmd := soterjson.NewGetRawTransactionCmd(hash, soterjson.Int(1))
return c.sendCmd(cmd)
}
// GetRawTransactionVerbose returns information about a transaction given
// its hash.
//
// See GetRawTransaction to obtain only the transaction already deserialized.
func (c *Client) GetRawTransactionVerbose(txHash *chainhash.Hash) (*soterjson.TxRawResult, error) {
return c.GetRawTransactionVerboseAsync(txHash).Receive()
}
// FutureDecodeRawTransactionResult is a future promise to deliver the result
// of a DecodeRawTransactionAsync RPC invocation (or an applicable error).
type FutureDecodeRawTransactionResult chan *response
// Receive waits for the response promised by the future and returns information
// about a transaction given its serialized bytes.
func (r FutureDecodeRawTransactionResult) Receive() (*soterjson.TxRawResult, error) {
res, err := receiveFuture(r)
if err != nil {
return nil, err
}
// Unmarshal result as a decoderawtransaction result object.
var rawTxResult soterjson.TxRawResult
err = json.Unmarshal(res, &rawTxResult)
if err != nil {
return nil, err
}
return &rawTxResult, nil
}
// DecodeRawTransactionAsync returns an instance of a type that can be used to
// get the result of the RPC at some future time by invoking the Receive
// function on the returned instance.
//
// See DecodeRawTransaction for the blocking version and more details.
func (c *Client) DecodeRawTransactionAsync(serializedTx []byte) FutureDecodeRawTransactionResult {
txHex := hex.EncodeToString(serializedTx)
cmd := soterjson.NewDecodeRawTransactionCmd(txHex)
return c.sendCmd(cmd)
}
// DecodeRawTransaction returns information about a transaction given its
// serialized bytes.
func (c *Client) DecodeRawTransaction(serializedTx []byte) (*soterjson.TxRawResult, error) {
return c.DecodeRawTransactionAsync(serializedTx).Receive()
}
// FutureCreateRawTransactionResult is a future promise to deliver the result
// of a CreateRawTransactionAsync RPC invocation (or an applicable error).
type FutureCreateRawTransactionResult chan *response
// Receive waits for the response promised by the future and returns a new
// transaction spending the provided inputs and sending to the provided
// addresses.
func (r FutureCreateRawTransactionResult) Receive() (*wire.MsgTx, error) {
res, err := receiveFuture(r)
if err != nil {
return nil, err
}
// Unmarshal result as a string.
var txHex string
err = json.Unmarshal(res, &txHex)
if err != nil {
return nil, err
}
// Decode the serialized transaction hex to raw bytes.
serializedTx, err := hex.DecodeString(txHex)
if err != nil {
return nil, err
}
// Deserialize the transaction and return it.
var msgTx wire.MsgTx
if err := msgTx.Deserialize(bytes.NewReader(serializedTx)); err != nil {
return nil, err
}
return &msgTx, nil
}
// CreateRawTransactionAsync returns an instance of a type that can be used to
// get the result of the RPC at some future time by invoking the Receive
// function on the returned instance.
//
// See CreateRawTransaction for the blocking version and more details.
func (c *Client) CreateRawTransactionAsync(inputs []soterjson.TransactionInput,
amounts map[soterutil.Address]soterutil.Amount, lockTime *int64) FutureCreateRawTransactionResult {
convertedAmts := make(map[string]float64, len(amounts))
for addr, amount := range amounts {
convertedAmts[addr.String()] = amount.ToSOTO()
}
cmd := soterjson.NewCreateRawTransactionCmd(inputs, convertedAmts, lockTime)
return c.sendCmd(cmd)
}
// CreateRawTransaction returns a new transaction spending the provided inputs
// and sending to the provided addresses.
func (c *Client) CreateRawTransaction(inputs []soterjson.TransactionInput,
amounts map[soterutil.Address]soterutil.Amount, lockTime *int64) (*wire.MsgTx, error) {
return c.CreateRawTransactionAsync(inputs, amounts, lockTime).Receive()
}
// FutureSendRawTransactionResult is a future promise to deliver the result
// of a SendRawTransactionAsync RPC invocation (or an applicable error).
type FutureSendRawTransactionResult chan *response
// Receive waits for the response promised by the future and returns the result
// of submitting the encoded transaction to the server which then relays it to
// the network.
func (r FutureSendRawTransactionResult) Receive() (*chainhash.Hash, error) {
res, err := receiveFuture(r)
if err != nil {
return nil, err
}
// Unmarshal result as a string.
var txHashStr string
err = json.Unmarshal(res, &txHashStr)
if err != nil {
return nil, err
}
return chainhash.NewHashFromStr(txHashStr)
}
// SendRawTransactionAsync returns an instance of a type that can be used to get
// the result of the RPC at some future time by invoking the Receive function on
// the returned instance.
//
// See SendRawTransaction for the blocking version and more details.
func (c *Client) SendRawTransactionAsync(tx *wire.MsgTx, allowHighFees bool) FutureSendRawTransactionResult {
txHex := ""
if tx != nil {
// Serialize the transaction and convert to hex string.
buf := bytes.NewBuffer(make([]byte, 0, tx.SerializeSize()))
if err := tx.Serialize(buf); err != nil {
return newFutureError(err)
}
txHex = hex.EncodeToString(buf.Bytes())
}
cmd := soterjson.NewSendRawTransactionCmd(txHex, &allowHighFees)
return c.sendCmd(cmd)
}
// SendRawTransaction submits the encoded transaction to the server which will
// then relay it to the network.
func (c *Client) SendRawTransaction(tx *wire.MsgTx, allowHighFees bool) (*chainhash.Hash, error) {
return c.SendRawTransactionAsync(tx, allowHighFees).Receive()
}
// FutureSignRawTransactionResult is a future promise to deliver the result
// of one of the SignRawTransactionAsync family of RPC invocations (or an
// applicable error).
type FutureSignRawTransactionResult chan *response
// Receive waits for the response promised by the future and returns the
// signed transaction as well as whether or not all inputs are now signed.
func (r FutureSignRawTransactionResult) Receive() (*wire.MsgTx, bool, error) {
res, err := receiveFuture(r)
if err != nil {
return nil, false, err
}
// Unmarshal as a signrawtransaction result.
var signRawTxResult soterjson.SignRawTransactionResult
err = json.Unmarshal(res, &signRawTxResult)
if err != nil {
return nil, false, err
}
// Decode the serialized transaction hex to raw bytes.
serializedTx, err := hex.DecodeString(signRawTxResult.Hex)
if err != nil {
return nil, false, err
}
// Deserialize the transaction and return it.
var msgTx wire.MsgTx
if err := msgTx.Deserialize(bytes.NewReader(serializedTx)); err != nil {
return nil, false, err
}
return &msgTx, signRawTxResult.Complete, nil
}
// SignRawTransactionAsync returns an instance of a type that can be used to get
// the result of the RPC at some future time by invoking the Receive function on
// the returned instance.
//
// See SignRawTransaction for the blocking version and more details.
func (c *Client) SignRawTransactionAsync(tx *wire.MsgTx) FutureSignRawTransactionResult {
txHex := ""
if tx != nil {
// Serialize the transaction and convert to hex string.
buf := bytes.NewBuffer(make([]byte, 0, tx.SerializeSize()))
if err := tx.Serialize(buf); err != nil {
return newFutureError(err)
}
txHex = hex.EncodeToString(buf.Bytes())
}
cmd := soterjson.NewSignRawTransactionCmd(txHex, nil, nil, nil)
return c.sendCmd(cmd)
}
// SignRawTransaction signs inputs for the passed transaction and returns the
// signed transaction as well as whether or not all inputs are now signed.
//
// This function assumes the RPC server already knows the input transactions and
// private keys for the passed transaction which needs to be signed and uses the
// default signature hash type. Use one of the SignRawTransaction# variants to
// specify that information if needed.
func (c *Client) SignRawTransaction(tx *wire.MsgTx) (*wire.MsgTx, bool, error) {
return c.SignRawTransactionAsync(tx).Receive()
}
// SignRawTransaction2Async returns an instance of a type that can be used to
// get the result of the RPC at some future time by invoking the Receive
// function on the returned instance.
//
// See SignRawTransaction2 for the blocking version and more details.
func (c *Client) SignRawTransaction2Async(tx *wire.MsgTx, inputs []soterjson.RawTxInput) FutureSignRawTransactionResult {
txHex := ""
if tx != nil {
// Serialize the transaction and convert to hex string.
buf := bytes.NewBuffer(make([]byte, 0, tx.SerializeSize()))
if err := tx.Serialize(buf); err != nil {
return newFutureError(err)
}
txHex = hex.EncodeToString(buf.Bytes())
}
cmd := soterjson.NewSignRawTransactionCmd(txHex, &inputs, nil, nil)
return c.sendCmd(cmd)
}
// SignRawTransaction2 signs inputs for the passed transaction given the list
// of information about the input transactions needed to perform the signing
// process.
//
// This only input transactions that need to be specified are ones the
// RPC server does not already know. Already known input transactions will be
// merged with the specified transactions.
//
// See SignRawTransaction if the RPC server already knows the input
// transactions.
func (c *Client) SignRawTransaction2(tx *wire.MsgTx, inputs []soterjson.RawTxInput) (*wire.MsgTx, bool, error) {
return c.SignRawTransaction2Async(tx, inputs).Receive()
}
// SignRawTransaction3Async returns an instance of a type that can be used to
// get the result of the RPC at some future time by invoking the Receive
// function on the returned instance.
//
// See SignRawTransaction3 for the blocking version and more details.
func (c *Client) SignRawTransaction3Async(tx *wire.MsgTx,
inputs []soterjson.RawTxInput,
privKeysWIF []string) FutureSignRawTransactionResult {
txHex := ""
if tx != nil {
// Serialize the transaction and convert to hex string.
buf := bytes.NewBuffer(make([]byte, 0, tx.SerializeSize()))
if err := tx.Serialize(buf); err != nil {
return newFutureError(err)
}
txHex = hex.EncodeToString(buf.Bytes())
}
cmd := soterjson.NewSignRawTransactionCmd(txHex, &inputs, &privKeysWIF,
nil)
return c.sendCmd(cmd)
}
// SignRawTransaction3 signs inputs for the passed transaction given the list
// of information about extra input transactions and a list of private keys
// needed to perform the signing process. The private keys must be in wallet
// import format (WIF).
//
// This only input transactions that need to be specified are ones the
// RPC server does not already know. Already known input transactions will be
// merged with the specified transactions. This means the list of transaction
// inputs can be nil if the RPC server already knows them all.
//
// NOTE: Unlike the merging functionality of the input transactions, ONLY the
// specified private keys will be used, so even if the server already knows some
// of the private keys, they will NOT be used.
//
// See SignRawTransaction if the RPC server already knows the input
// transactions and private keys or SignRawTransaction2 if it already knows the
// private keys.
func (c *Client) SignRawTransaction3(tx *wire.MsgTx,
inputs []soterjson.RawTxInput,
privKeysWIF []string) (*wire.MsgTx, bool, error) {
return c.SignRawTransaction3Async(tx, inputs, privKeysWIF).Receive()
}
// SignRawTransaction4Async returns an instance of a type that can be used to
// get the result of the RPC at some future time by invoking the Receive
// function on the returned instance.
//
// See SignRawTransaction4 for the blocking version and more details.
func (c *Client) SignRawTransaction4Async(tx *wire.MsgTx,
inputs []soterjson.RawTxInput, privKeysWIF []string,
hashType SigHashType) FutureSignRawTransactionResult {
txHex := ""
if tx != nil {
// Serialize the transaction and convert to hex string.
buf := bytes.NewBuffer(make([]byte, 0, tx.SerializeSize()))
if err := tx.Serialize(buf); err != nil {
return newFutureError(err)
}
txHex = hex.EncodeToString(buf.Bytes())
}
cmd := soterjson.NewSignRawTransactionCmd(txHex, &inputs, &privKeysWIF,
soterjson.String(string(hashType)))
return c.sendCmd(cmd)
}
// SignRawTransaction4 signs inputs for the passed transaction using the
// the specified signature hash type given the list of information about extra
// input transactions and a potential list of private keys needed to perform
// the signing process. The private keys, if specified, must be in wallet
// import format (WIF).
//
// The only input transactions that need to be specified are ones the RPC server
// does not already know. This means the list of transaction inputs can be nil
// if the RPC server already knows them all.
//
// NOTE: Unlike the merging functionality of the input transactions, ONLY the
// specified private keys will be used, so even if the server already knows some
// of the private keys, they will NOT be used. The list of private keys can be
// nil in which case any private keys the RPC server knows will be used.
//
// This function should only used if a non-default signature hash type is
// desired. Otherwise, see SignRawTransaction if the RPC server already knows
// the input transactions and private keys, SignRawTransaction2 if it already
// knows the private keys, or SignRawTransaction3 if it does not know both.
func (c *Client) SignRawTransaction4(tx *wire.MsgTx,
inputs []soterjson.RawTxInput, privKeysWIF []string,
hashType SigHashType) (*wire.MsgTx, bool, error) {
return c.SignRawTransaction4Async(tx, inputs, privKeysWIF,
hashType).Receive()
}
// FutureSearchRawTransactionsResult is a future promise to deliver the result
// of the SearchRawTransactionsAsync RPC invocation (or an applicable error).
type FutureSearchRawTransactionsResult chan *response
// Receive waits for the response promised by the future and returns the
// found raw transactions.
func (r FutureSearchRawTransactionsResult) Receive() ([]*wire.MsgTx, error) {
res, err := receiveFuture(r)
if err != nil {
return nil, err
}
// Unmarshal as an array of strings.
var searchRawTxnsResult []string
err = json.Unmarshal(res, &searchRawTxnsResult)
if err != nil {
return nil, err
}
// Decode and deserialize each transaction.
msgTxns := make([]*wire.MsgTx, 0, len(searchRawTxnsResult))
for _, hexTx := range searchRawTxnsResult {
// Decode the serialized transaction hex to raw bytes.
serializedTx, err := hex.DecodeString(hexTx)
if err != nil {
return nil, err
}
// Deserialize the transaction and add it to the result slice.
var msgTx wire.MsgTx
err = msgTx.Deserialize(bytes.NewReader(serializedTx))
if err != nil {
return nil, err
}
msgTxns = append(msgTxns, &msgTx)
}
return msgTxns, nil
}
// SearchRawTransactionsAsync returns an instance of a type that can be used to
// get the result of the RPC at some future time by invoking the Receive
// function on the returned instance.
//
// See SearchRawTransactions for the blocking version and more details.
func (c *Client) SearchRawTransactionsAsync(address soterutil.Address, skip, count int, reverse bool, filterAddrs []string) FutureSearchRawTransactionsResult {
addr := address.EncodeAddress()
verbose := soterjson.Int(0)
cmd := soterjson.NewSearchRawTransactionsCmd(addr, verbose, &skip, &count,
nil, &reverse, &filterAddrs)
return c.sendCmd(cmd)
}
// SearchRawTransactions returns transactions that involve the passed address.
//
// NOTE: Chain servers do not typically provide this capability unless it has
// specifically been enabled.
//
// See SearchRawTransactionsVerbose to retrieve a list of data structures with
// information about the transactions instead of the transactions themselves.
func (c *Client) SearchRawTransactions(address soterutil.Address, skip, count int, reverse bool, filterAddrs []string) ([]*wire.MsgTx, error) {
return c.SearchRawTransactionsAsync(address, skip, count, reverse, filterAddrs).Receive()
}
// FutureSearchRawTransactionsVerboseResult is a future promise to deliver the
// result of the SearchRawTransactionsVerboseAsync RPC invocation (or an
// applicable error).
type FutureSearchRawTransactionsVerboseResult chan *response
// Receive waits for the response promised by the future and returns the
// found raw transactions.
func (r FutureSearchRawTransactionsVerboseResult) Receive() ([]*soterjson.SearchRawTransactionsResult, error) {
res, err := receiveFuture(r)
if err != nil {
return nil, err
}
// Unmarshal as an array of raw transaction results.
var result []*soterjson.SearchRawTransactionsResult
err = json.Unmarshal(res, &result)
if err != nil {
return nil, err
}
return result, nil
}
// SearchRawTransactionsVerboseAsync returns an instance of a type that can be
// used to get the result of the RPC at some future time by invoking the Receive
// function on the returned instance.
//
// See SearchRawTransactionsVerbose for the blocking version and more details.
func (c *Client) SearchRawTransactionsVerboseAsync(address soterutil.Address, skip,
count int, includePrevOut, reverse bool, filterAddrs *[]string) FutureSearchRawTransactionsVerboseResult {
addr := address.EncodeAddress()
verbose := soterjson.Int(1)
var prevOut *int
if includePrevOut {
prevOut = soterjson.Int(1)
}
cmd := soterjson.NewSearchRawTransactionsCmd(addr, verbose, &skip, &count,
prevOut, &reverse, filterAddrs)
return c.sendCmd(cmd)
}
// SearchRawTransactionsVerbose returns a list of data structures that describe
// transactions which involve the passed address.
//
// NOTE: Chain servers do not typically provide this capability unless it has
// specifically been enabled.
//
// See SearchRawTransactions to retrieve a list of raw transactions instead.
func (c *Client) SearchRawTransactionsVerbose(address soterutil.Address, skip,
count int, includePrevOut, reverse bool, filterAddrs []string) ([]*soterjson.SearchRawTransactionsResult, error) {
return c.SearchRawTransactionsVerboseAsync(address, skip, count,
includePrevOut, reverse, &filterAddrs).Receive()
}
// FutureDecodeScriptResult is a future promise to deliver the result
// of a DecodeScriptAsync RPC invocation (or an applicable error).
type FutureDecodeScriptResult chan *response
// Receive waits for the response promised by the future and returns information
// about a script given its serialized bytes.
func (r FutureDecodeScriptResult) Receive() (*soterjson.DecodeScriptResult, error) {
res, err := receiveFuture(r)
if err != nil {
return nil, err
}
// Unmarshal result as a decodescript result object.
var decodeScriptResult soterjson.DecodeScriptResult
err = json.Unmarshal(res, &decodeScriptResult)
if err != nil {
return nil, err
}
return &decodeScriptResult, nil
}
// DecodeScriptAsync returns an instance of a type that can be used to
// get the result of the RPC at some future time by invoking the Receive
// function on the returned instance.
//
// See DecodeScript for the blocking version and more details.
func (c *Client) DecodeScriptAsync(serializedScript []byte) FutureDecodeScriptResult {
scriptHex := hex.EncodeToString(serializedScript)
cmd := soterjson.NewDecodeScriptCmd(scriptHex)
return c.sendCmd(cmd)
}
// DecodeScript returns information about a script given its serialized bytes.
func (c *Client) DecodeScript(serializedScript []byte) (*soterjson.DecodeScriptResult, error) {
return c.DecodeScriptAsync(serializedScript).Receive()
}