wltbtc

package
v0.0.0-...-f587991 Latest Latest
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This package is not in the latest version of its module.

 Go to latest Published: Nov 18, 2024 License: MIT Imports: 28 Imported by: 0

Documentation

Index

Constants

View Source 
const (
	// PubKeyLength is the length of a serialized compressed public key.
	PubKeyLength = 33

	// 4 bytes version + 4 bytes locktime + 2 bytes of varints for the number of
	// transaction inputs and outputs
	MinimumBlockOverHead = 10

	// DERSigLength is the maximum length of a DER encoded signature with a
	// sighash type byte.
	DERSigLength = 73

	// RefundSigScriptSize is the worst case (largest) serialize size
	// of a transaction input script that refunds a compressed P2PKH output.
	// It is calculated as:
	//
	//   - OP_DATA_73
	//   - 72 bytes DER signature + 1 byte sighash
	//   - OP_DATA_33
	//   - 33 bytes serialized compressed pubkey
	DefaultSigScriptSize = 1 + DERSigLength + 1 + 33 // 108

	// Overhead for a wire.TxIn. See wire.TxIn.SerializeSize.
	// hash 32 bytes + index 4 bytes + sequence 4 bytes.
	TxInOverhead = 32 + 4 + 4 // 40

	// TxOutOverhead is the overhead associated with a transaction output.
	// 8 bytes value + at least 1 byte varint script size
	TxOutOverhead = 8 + 1

	RedeemP2PKSigScriptSize = 1 + DERSigLength

	// P2SHPkScriptSize is the size of a transaction output script that
	// pays to a redeem script.  It is calculated as:
	//
	//   - OP_HASH160
	//   - OP_DATA_20
	//   - 20 bytes redeem script hash
	//   - OP_EQUAL
	P2SHPkScriptSize = 1 + 1 + 20 + 1

	// P2SHOutputSize is the size of the serialized P2SH output.
	P2SHOutputSize = TxOutOverhead + P2SHPkScriptSize // 9 + 23 = 32

	// P2WSHPkScriptSize is the size of a segwit transaction output script that
	// pays to a redeem script.  It is calculated as:
	//
	//   - OP_0
	//   - OP_DATA_32
	//   - 32 bytes redeem script hash
	P2WSHPkScriptSize = 1 + 1 + 32

	// P2WSHOutputSize is the size of the serialized P2WSH output.
	P2WSHOutputSize = TxOutOverhead + P2WSHPkScriptSize // 9 + 34 = 43

	// RedeemP2WPKHInputSize is the worst case size of a transaction
	// input redeeming a P2WPKH output. This does not account for witness data,
	// which is considered at a lower weight for fee calculations. It is
	// calculated as
	//
	//   - 32 bytes previous tx
	//   - 4 bytes output index
	//   - 4 bytes sequence
	//   - 1 byte encoding empty redeem script
	//   - 0 bytes signature script
	RedeemP2WPKHInputSize = TxInOverhead + 1

	// RedeemP2WPKHInputWitnessWeight is the worst case weight of
	// a witness for spending P2WPKH and nested P2WPKH outputs. It
	// is calculated as:
	//
	//   - 1 wu compact int encoding value 2 (number of items)
	//   - 1 wu compact int encoding value 73
	//   - 72 wu DER signature + 1 wu sighash
	//   - 1 wu compact int encoding value 33
	//   - 33 wu serialized compressed pubkey
	// NOTE: witness data is not script.
	RedeemP2WPKHInputWitnessWeight = 1 + 1 + DERSigLength + 1 + 33 // 109

	// RedeemP2WPKHInputTotalSize is the worst case size of a transaction
	// input redeeming a P2WPKH output and the corresponding witness data.
	// It is calculated as:
	//
	// 41 vbytes base tx input
	// 109wu witness = 28 vbytes
	// total = 69 vbytes
	RedeemP2WPKHInputTotalSize = RedeemP2WPKHInputSize +
		(RedeemP2WPKHInputWitnessWeight+(witnessWeight-1))/witnessWeight

	// SigwitMarkerAndFlagWeight is the 2 bytes of overhead witness data
	// added to every segwit transaction.
	SegwitMarkerAndFlagWeight = 2

	// P2WPKHPkScriptSize is the size of a transaction output script that
	// pays to a witness pubkey hash. It is calculated as:
	//
	//   - OP_0
	//   - OP_DATA_20
	//   - 20 bytes pubkey hash
	P2WPKHPkScriptSize = 1 + 1 + 20

	// P2WPKHOutputSize is the serialize size of a transaction output with a
	// P2WPKH output script. It is calculated as:
	//
	//   - 8 bytes output value
	//   - 1 byte compact int encoding value 22
	//   - 22 bytes P2PKH output script
	P2WPKHOutputSize = TxOutOverhead + P2WPKHPkScriptSize // 31

	// MinimumTxOverhead is the size of an empty transaction.
	// 4 bytes version + 4 bytes locktime + 2 bytes of varints for the number of
	// transaction inputs and outputs
	MinimumTxOverhead = 4 + 4 + 1 + 1 // 10

	// InitTxSizeBase is the size of a standard serialized atomic swap
	// initialization transaction with one change output and no inputs. This is
	// MsgTx overhead + 1 P2PKH change output + 1 P2SH contract output. However,
	// the change output might be P2WPKH, in which case it would be smaller.
	InitTxSizeBase = MinimumTxOverhead + P2PKHOutputSize + P2SHOutputSize // 10 + 34 + 32 = 76

	// InitTxSize is InitTxBaseSize + 1 P2PKH input
	InitTxSize = InitTxSizeBase + RedeemP2PKHInputSize // 76 + 149 = 225

	// InitTxSizeBaseSegwit is the size of a standard serialized atomic swap
	// initialization transaction with one change output and no inputs. The
	// change output is assumed to be segwit. 10 + 31 + 43 = 84
	InitTxSizeBaseSegwit = MinimumTxOverhead + P2WPKHOutputSize + P2WSHOutputSize

	// InitTxSizeSegwit is InitTxSizeSegwit + 1 P2WPKH input.
	// 84 vbytes base tx
	// 41 vbytes base tx input
	// 109wu witness +  2wu segwit marker and flag = 28 vbytes
	// total = 153 vbytes
	InitTxSizeSegwit = InitTxSizeBaseSegwit + RedeemP2WPKHInputSize +
		(SegwitMarkerAndFlagWeight+RedeemP2WPKHInputWitnessWeight+(witnessWeight-1))/witnessWeight
)
View Source 
const (
	// RedeemP2PKHSigScriptSize is the worst case (largest) serialize size
	// of a transaction input script that redeems a compressed P2PKH output.
	// It is calculated as:
	//
	//   - OP_DATA_73
	//   - 72 bytes DER signature + 1 byte sighash
	//   - OP_DATA_33
	//   - 33 bytes serialized compressed pubkey
	RedeemP2PKHSigScriptSize = 1 + 73 + 1 + 33

	// RedeemP2SHMultisigSigScriptSize is the worst case (largest) serialize size
	// of a transaction input script that redeems a 2 of 3 P2SH multisig output with compressed keys.
	// It is calculated as:
	//
	//   - OP_0
	//   - OP_DATA_72
	//   - 72 bytes DER signature
	//   - OP_DATA_72
	//   - 72 bytes DER signature
	//   - OP_PUSHDATA
	//   - OP_2
	//   - OP_DATA_33
	//   - 33 bytes serialized compressed pubkey
	//   - OP_DATA_33
	//   - 33 bytes serialized compressed pubkey
	//   - OP_DATA_33
	//   - 33 bytes serialized compressed pubkey
	//   - OP3
	//   - OP_CHECKMULTISIG
	RedeemP2SH2of3MultisigSigScriptSize = 1 + 1 + 72 + 1 + 72 + 1 + 1 + 1 + 33 + 1 + 33 + 1 + 33 + 1 + 1

	// RedeemP2SH1of2MultisigSigScriptSize is the worst case (largest) serialize size
	// of a transaction input script that redeems a 1 of 2 P2SH multisig output with compressed keys.
	// It is calculated as:
	//
	//   - OP_0
	//   - OP_DATA_72
	//   - 72 bytes DER signature
	//   - OP_PUSHDATA
	//   - OP_1
	//   - OP_DATA_33
	//   - 33 bytes serialized compressed pubkey
	//   - OP_DATA_33
	//   - 33 bytes serialized compressed pubkey
	//   - OP2
	//   - OP_CHECKMULTISIG
	RedeemP2SH1of2MultisigSigScriptSize = 1 + 1 + 72 + 1 + 1 + 1 + 33 + 1 + 33 + 1 + 1

	// RedeemP2SHMultisigTimelock1SigScriptSize is the worst case (largest) serialize size
	// of a transaction input script that redeems a compressed P2SH timelocked multisig using the timeout.
	// It is calculated as:
	//
	//   - OP_DATA_72
	//   - 72 bytes DER signature
	//   - OP_0
	//   - OP_PUSHDATA
	//   - OP_IF
	//   - OP_2
	//   - OP_DATA_33
	//   - 33 bytes serialized compressed pubkey
	//   - OP_DATA_33
	//   - 33 bytes serialized compressed pubkey
	//   - OP_DATA_33
	//   - 33 bytes serialized compressed pubkey
	//   - OP3
	//   - OP_CHECKMULTISIG
	//   - OP_ELSE
	//   - OP_PUSHDATA
	//   - 2 byte block height
	//   - OP_CHECKSEQUENCEVERIFY
	//   - OP_DROP
	//   - OP_DATA_33
	//   - 33 bytes serialized compressed pubkey
	//   - OP_CHECKSIG
	//   - OP_ENDIF
	RedeemP2SHMultisigTimelock1SigScriptSize = 1 + 72 + 1 + 1 + 1 + 1 + 1 + 33 + 1 + 33 + 1 + 33 + 1 + 1 + 1 + 1 + 2 + 1 + 1 + 1 + 33 + 1 + 1

	// RedeemP2SHMultisigTimelock2SigScriptSize is the worst case (largest) serialize size
	// of a transaction input script that redeems a compressed P2SH timelocked multisig without using the timeout.
	// It is calculated as:
	//
	//   - OP_0
	//   - OP_DATA_72
	//   - 72 bytes DER signature
	//   - OP_DATA_72
	//   - 72 bytes DER signature
	//   - OP_1
	//   - OP_PUSHDATA
	//   - OP_IF
	//   - OP_2
	//   - OP_DATA_33
	//   - 33 bytes serialized compressed pubkey
	//   - OP_DATA_33
	//   - 33 bytes serialized compressed pubkey
	//   - OP_DATA_33
	//   - 33 bytes serialized compressed pubkey
	//   - OP3
	//   - OP_CHECKMULTISIG
	//   - OP_ELSE
	//   - OP_PUSHDATA
	//   - 2 byte block height
	//   - OP_CHECKSEQUENCEVERIFY
	//   - OP_DROP
	//   - OP_DATA_33
	//   - 33 bytes serialized compressed pubkey
	//   - OP_CHECKSIG
	//   - OP_ENDIF
	RedeemP2SHMultisigTimelock2SigScriptSize = 1 + 1 + 72 + +1 + 72 + 1 + 1 + 1 + 1 + 1 + 33 + 1 + 33 + 1 + 33 + 1 + 1 + 1 + 1 + 2 + 1 + 1 + 1 + 33 + 1 + 1

	// P2PKHPkScriptSize is the size of a transaction output script that
	// pays to a compressed pubkey hash.  It is calculated as:
	//
	//   - OP_DUP
	//   - OP_HASH160
	//   - OP_DATA_20
	//   - 20 bytes pubkey hash
	//   - OP_EQUALVERIFY
	//   - OP_CHECKSIG
	P2PKHPkScriptSize = 1 + 1 + 1 + 20 + 1 + 1

	// RedeemP2PKHInputSize is the worst case (largest) serialize size of a
	// transaction input redeeming a compressed P2PKH output.  It is
	// calculated as:
	//
	//   - 32 bytes previous tx
	//   - 4 bytes output index
	//   - 1 byte script len
	//   - signature script
	//   - 4 bytes sequence
	RedeemP2PKHInputSize = 32 + 4 + 1 + RedeemP2PKHSigScriptSize + 4

	// RedeemP2SH2of3MultisigInputSize is the worst case (largest) serialize size of a
	// transaction input redeeming a compressed P2SH 2 of 3 multisig output.  It is
	// calculated as:
	//
	//   - 32 bytes previous tx
	//   - 4 bytes output index
	//   - 1 byte script len
	//   - 4 bytes sequence
	///  - witness discounted signature script
	RedeemP2SH2of3MultisigInputSize = 32 + 4 + 1 + 4 + (RedeemP2SH2of3MultisigSigScriptSize / 4)

	// RedeemP2SH1of2MultisigInputSize is the worst case (largest) serialize size of a
	// transaction input redeeming a compressed P2SH 2 of 3 multisig output.  It is
	// calculated as:
	//
	//   - 32 bytes previous tx
	//   - 4 bytes output index
	//   - 1 byte script len
	//   - 4 bytes sequence
	///  - witness discounted signature script
	RedeemP2SH1of2MultisigInputSize = 32 + 4 + 1 + 4 + (RedeemP2SH1of2MultisigSigScriptSize / 4)

	// RedeemP2SHMultisigTimelock1InputSize is the worst case (largest) serialize size of a
	// transaction input redeeming a compressed p2sh timelocked multig output with using the timeout.  It is
	// calculated as:
	//
	//   - 32 bytes previous tx
	//   - 4 bytes output index
	//   - 1 byte script len
	//   - 4 bytes sequence
	///  - witness discounted signature script
	RedeemP2SHMultisigTimelock1InputSize = 32 + 4 + 1 + 4 + (RedeemP2SHMultisigTimelock1SigScriptSize / 4)

	// RedeemP2SHMultisigTimelock2InputSize is the worst case (largest) serialize size of a
	// transaction input redeeming a compressed P2SH timelocked multisig output without using the timeout.  It is
	// calculated as:
	//
	//   - 32 bytes previous tx
	//   - 4 bytes output index
	//   - 1 byte script len
	//   - 4 bytes sequence
	///  - witness discounted signature script
	RedeemP2SHMultisigTimelock2InputSize = 32 + 4 + 1 + 4 + (RedeemP2SHMultisigTimelock2SigScriptSize / 4)

	// P2PKHOutputSize is the serialize size of a transaction output with a
	// P2PKH output script.  It is calculated as:
	//
	//   - 8 bytes output value
	//   - 1 byte compact int encoding value 25
	//   - 25 bytes P2PKH output script
	P2PKHOutputSize = 8 + 1 + P2PKHPkScriptSize
)

Worst case script and input/output size estimates.

View Source 
const GAP_LIMIT = client.GAP_LIMIT

Lookahead window size from client constants

View Source 
const MAX_TX_INPUTS = 50 //TODO: enforce this
View Source 
const WalletVersion = "0.1.0"

Variables

View Source 
var ErrEmptyPassword = errors.New("empty password")

Functions

func Bip44Derivation 

func Bip44Derivation(masterPrivKey *hd.ExtendedKey) (internal, external *hd.ExtendedKey, err error)

m / purpose' / coin_type' / account' / change / address_index

func EstimateSerializeSize 

func EstimateSerializeSize(inputCount int, txOuts []*wire.TxOut, addChangeOutput bool, inputType InputType) int

EstimateSerializeSize returns a worst case serialize size estimate for a signed transaction that spends inputCount number of compressed P2PKH outputs and contains each transaction output from txOuts. The estimated size is incremented for an additional P2PKH change output if addChangeOutput is true.

func NewOutPointFromString 

func NewOutPointFromString(outpoint string) (*wire.OutPoint, error)

NewOutPointFromString returns a new bitcoin transaction outpoint parsed from the provided string, which should be in the format "hash:index".

func SumOutputSerializeSizes 

func SumOutputSerializeSizes(outputs []*wire.TxOut) (serializeSize int)

SumOutputSerializeSizes sums up the serialized size of the supplied outputs.

func TestStxo_IsEqual 

func TestStxo_IsEqual(t *testing.T)

func TestUtxo_IsEqual 

func TestUtxo_IsEqual(t *testing.T)

Types

type BtcElectrumWallet 

type BtcElectrumWallet struct {
	// contains filtered or unexported fields
}

func LoadBtcElectrumWallet 

func LoadBtcElectrumWallet(config *wallet.WalletConfig, pw string) (*BtcElectrumWallet, error)

func MockWallet 

func MockWallet(pw string) *BtcElectrumWallet

A 'regtest' wallet

func NewBtcElectrumWallet 

func NewBtcElectrumWallet(config *wallet.WalletConfig, pw string) (*BtcElectrumWallet, error)

NewBtcElectrumWallet mskes new wallet with a new seed. The Mnemonic should be saved offline by the user.

func RecreateElectrumWallet 

func RecreateElectrumWallet(config *wallet.WalletConfig, pw, mnemonic string) (*BtcElectrumWallet, error)

RecreateElectrumWallet makes new wallet with a mnenomic seed from an existing wallet. pw does not need to be the same as the old wallet

func (*BtcElectrumWallet) AddSubscription 

func (w *BtcElectrumWallet) AddSubscription(subcription *wallet.Subscription) error

func (*BtcElectrumWallet) AddTransaction 

func (w *BtcElectrumWallet) AddTransaction(tx *wire.MsgTx, height int64, timestamp time.Time) error

Add a transaction to the database

func (*BtcElectrumWallet) AddressToScript 

func (w *BtcElectrumWallet) AddressToScript(address btcutil.Address) ([]byte, error)

func (*BtcElectrumWallet) Balance 

func (w *BtcElectrumWallet) Balance() (int64, int64, int64, error)

func (*BtcElectrumWallet) BumpFee 

func (w *BtcElectrumWallet) BumpFee(txid string) (*wire.MsgTx, error)

func (*BtcElectrumWallet) CreationDate 

func (w *BtcElectrumWallet) CreationDate() time.Time

func (*BtcElectrumWallet) CurrencyCode 

func (w *BtcElectrumWallet) CurrencyCode() string

func (*BtcElectrumWallet) DecodeAddress 

func (w *BtcElectrumWallet) DecodeAddress(addr string) (btcutil.Address, error)

func (*BtcElectrumWallet) EstimateFee 

func (w *BtcElectrumWallet) EstimateFee(
	ins []wallet.InputInfo,
	outs []wallet.TransactionOutput,
	feePerByte int64) int64

func (*BtcElectrumWallet) FreezeUTXO 

func (w *BtcElectrumWallet) FreezeUTXO(op *wire.OutPoint) error

func (*BtcElectrumWallet) GetAddress 

func (w *BtcElectrumWallet) GetAddress(kp *wallet.KeyPath) (btcutil.Address, error)

GetAddress gets an address given a KeyPath. It is used for Rescan and has no concept of gap-limit. It is expected that keys made here are just temporarily used to generate addresses for rescan.

func (*BtcElectrumWallet) GetFeePerByte 

func (w *BtcElectrumWallet) GetFeePerByte(feeLevel wallet.FeeLevel) int64

func (*BtcElectrumWallet) GetPrivKeyForAddress 

func (w *BtcElectrumWallet) GetPrivKeyForAddress(pw string, address btcutil.Address) (string, error)

func (*BtcElectrumWallet) GetSubscription 

func (w *BtcElectrumWallet) GetSubscription(scriptPubKey string) (*wallet.Subscription, error)

func (*BtcElectrumWallet) GetSubscriptionForElectrumScripthash 

func (w *BtcElectrumWallet) GetSubscriptionForElectrumScripthash(electrumScripthash string) (*wallet.Subscription, error)

func (*BtcElectrumWallet) GetTransaction 

func (w *BtcElectrumWallet) GetTransaction(txid string) (*wallet.Txn, error)

func (*BtcElectrumWallet) GetUnusedAddress 

func (w *BtcElectrumWallet) GetUnusedAddress(purpose wallet.KeyPurpose) (btcutil.Address, error)

func (*BtcElectrumWallet) GetUnusedLegacyAddress 

func (w *BtcElectrumWallet) GetUnusedLegacyAddress() (btcutil.Address, error)

For receiving simple payments from legacy wallets only!

func (*BtcElectrumWallet) GetWalletAddressHistory 

func (w *BtcElectrumWallet) GetWalletAddressHistory(address btcutil.Address) ([]wallet.AddressHistory, error)

Return the calculated confirmed txids and heights for an address in this wallet. Currently we get this info from the Node.

func (*BtcElectrumWallet) HasAddress 

func (w *BtcElectrumWallet) HasAddress(address btcutil.Address) bool

func (*BtcElectrumWallet) HasTransaction 

func (w *BtcElectrumWallet) HasTransaction(txid string) (bool, *wallet.Txn)

func (*BtcElectrumWallet) IsDust 

func (w *BtcElectrumWallet) IsDust(amount int64) bool

func (*BtcElectrumWallet) IsMine 

func (w *BtcElectrumWallet) IsMine(queryAddress btcutil.Address) bool

func (*BtcElectrumWallet) ListAddresses 

func (w *BtcElectrumWallet) ListAddresses() []btcutil.Address

func (*BtcElectrumWallet) ListConfirmedUnspent 

func (w *BtcElectrumWallet) ListConfirmedUnspent() ([]wallet.Utxo, error)

func (*BtcElectrumWallet) ListFrozenUnspent 

func (w *BtcElectrumWallet) ListFrozenUnspent() ([]wallet.Utxo, error)

func (*BtcElectrumWallet) ListSpent 

func (w *BtcElectrumWallet) ListSpent() ([]wallet.Stxo, error)

List all spent

func (*BtcElectrumWallet) ListSubscriptions 

func (w *BtcElectrumWallet) ListSubscriptions() ([]*wallet.Subscription, error)

func (*BtcElectrumWallet) ListTransactions 

func (w *BtcElectrumWallet) ListTransactions() ([]wallet.Txn, error)

func (*BtcElectrumWallet) ListUnspent 

func (w *BtcElectrumWallet) ListUnspent() ([]wallet.Utxo, error)

List all unspent outputs in the wallet

func (*BtcElectrumWallet) MarkAddressUsed 

func (w *BtcElectrumWallet) MarkAddressUsed(address btcutil.Address) error

Marks the address as used (involved in at least one transaction)

func (*BtcElectrumWallet) Params 

func (w *BtcElectrumWallet) Params() *chaincfg.Params

func (*BtcElectrumWallet) RemoveSubscription 

func (w *BtcElectrumWallet) RemoveSubscription(scriptPubKey string)

func (*BtcElectrumWallet) ScriptToAddress 

func (w *BtcElectrumWallet) ScriptToAddress(script []byte) (btcutil.Address, error)

func (*BtcElectrumWallet) SignTx 

func (w *BtcElectrumWallet) SignTx(pw string, info *wallet.SigningInfo) ([]byte, error)

Sign an unsigned transaction with the wallet

func (*BtcElectrumWallet) Spend 

func (w *BtcElectrumWallet) Spend(
	pw string,
	amount int64,
	address btcutil.Address,
	feeLevel wallet.FeeLevel) (int, *wire.MsgTx, error)

Spend creates and signs a new transaction from wallet coins

func (*BtcElectrumWallet) Start 

func (w *BtcElectrumWallet) Start()

func (*BtcElectrumWallet) SweepCoins 

func (w *BtcElectrumWallet) SweepCoins(
	coins []wallet.InputInfo,
	feeLevel wallet.FeeLevel,
	maxTxInputs int) ([]*wire.MsgTx, error)

func (*BtcElectrumWallet) UnFreezeUTXO 

func (w *BtcElectrumWallet) UnFreezeUTXO(op *wire.OutPoint) error

func (*BtcElectrumWallet) UpdateTip 

func (w *BtcElectrumWallet) UpdateTip(newTip int64)

Update the wallet's view of the blockchain

type InputType 

type InputType int
const (
	P2PKH InputType = iota
	P2SH_1of2_Multisig
	P2SH_2of3_Multisig
	P2SH_Multisig_Timelock_1Sig
	P2SH_Multisig_Timelock_2Sigs
)

type KeyManager 

type KeyManager struct {
	// contains filtered or unexported fields
}

func NewKeyManager 

func NewKeyManager(db wallet.Keys, params *chaincfg.Params, masterPrivKey *hd.ExtendedKey) (*KeyManager, error)

func (*KeyManager) GetFreshKey 

func (km *KeyManager) GetFreshKey(purpose wallet.KeyPurpose) (*hd.ExtendedKey, error)

func (*KeyManager) GetKeyForScript 

func (km *KeyManager) GetKeyForScript(scriptAddress []byte) (*hd.ExtendedKey, error)

func (*KeyManager) GetKeys 

func (km *KeyManager) GetKeys() []*hd.ExtendedKey

func (*KeyManager) GetUnusedKey 

func (km *KeyManager) GetUnusedKey(purpose wallet.KeyPurpose) (*hd.ExtendedKey, error)

GetUnusedKey gets the first unused key for 'purpose'. CAUTION: There may not be any keys within the gap limit. In this case a used key can be utilized or user can wait until the gap is updated with new key(s). This happens when a transaction newly gets client.AGEDTX confirmations.

func (*KeyManager) MarkKeyAsUsed 

func (km *KeyManager) MarkKeyAsUsed(scriptAddress []byte) error

Mark the given key as used and extend the lookahead window

type MockDatastore 

type MockDatastore struct {
	// contains filtered or unexported fields
}

func (*MockDatastore) Cfg 

func (m *MockDatastore) Cfg() wallet.Cfg

func (*MockDatastore) Enc 

func (m *MockDatastore) Enc() wallet.Enc

func (*MockDatastore) Keys 

func (m *MockDatastore) Keys() wallet.Keys

func (*MockDatastore) Stxos 

func (m *MockDatastore) Stxos() wallet.Stxos

func (*MockDatastore) Subscriptions 

func (m *MockDatastore) Subscriptions() wallet.Subscriptions

func (*MockDatastore) Txns 

func (m *MockDatastore) Txns() wallet.Txns

func (*MockDatastore) Utxos 

func (m *MockDatastore) Utxos() wallet.Utxos

type Storage 

type Storage struct {
	Version string `json:"version"`
	Xprv    string `json:"xprv"`
	Xpub    string `json:"xpub"`
	ShaPw   []byte `json:"shapw"`
	Seed    []byte `json:"seed,omitempty"`
}

func (*Storage) String 

func (s *Storage) String() string

String returns the string representation of the Storage.

type StorageManager 

type StorageManager struct {
	// contains filtered or unexported fields
}

func NewStorageManager 

func NewStorageManager(db wallet.Enc, params *chaincfg.Params) *StorageManager

func (*StorageManager) Get 

func (sm *StorageManager) Get(pw string) error

func (*StorageManager) IsValidPw 

func (sm *StorageManager) IsValidPw(pw string) bool

func (*StorageManager) Put 

func (sm *StorageManager) Put(pw string) error

type SubscriptionManager 

type SubscriptionManager struct {
	// contains filtered or unexported fields
}

func NewSubscriptionManager 

func NewSubscriptionManager(db wallet.Subscriptions, params *chaincfg.Params) *SubscriptionManager

func (*SubscriptionManager) Delete 

func (sm *SubscriptionManager) Delete(scriptPubKey string) error

func (*SubscriptionManager) Get 

func (sm *SubscriptionManager) Get(scriptPubKey string) (*wallet.Subscription, error)

func (*SubscriptionManager) GetAll 

func (sm *SubscriptionManager) GetAll() ([]*wallet.Subscription, error)

func (*SubscriptionManager) GetElectrumScripthash 

func (sm *SubscriptionManager) GetElectrumScripthash(electrumScripthash string) (*wallet.Subscription, error)

func (*SubscriptionManager) Put 

func (sm *SubscriptionManager) Put(subscription *wallet.Subscription) error

type TxStore 

type TxStore struct {
	wallet.Datastore
	// contains filtered or unexported fields
}

func NewTxStore 

func NewTxStore(params *chaincfg.Params, db wallet.Datastore, keyManager *KeyManager) (*TxStore, error)

func (*TxStore) AddTransaction 

func (ts *TxStore) AddTransaction(tx *wire.MsgTx, height int64, timestamp time.Time) (uint32, error)

AddTransaction puts a tx into the database.

func (*TxStore) CheckDoubleSpends 

func (ts *TxStore) CheckDoubleSpends(argTx *wire.MsgTx) ([]*chainhash.Hash, error)

CheckDoubleSpends takes a transaction and compares it with all transactions in the db. It returns a slice of all txids in the db which are double spent by the received tx.

func (*TxStore) PopulateAdrs 

func (ts *TxStore) PopulateAdrs()

PopulateAdrs makes a list of addresses from the key-index pairs we have in the database. The key-pairs we have stored are returned in index order. PopulateAdrs also makes an up to date list of txs in the database. It never mutates the db.

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