lnd.xprv/lnwire/funding_signaccept.go

94 lines
2.0 KiB
Go
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package lnwire
import (
"fmt"
"io"
"github.com/roasbeef/btcd/btcec"
)
type FundingSignAccept struct {
ReservationID uint64
CommitSig *btcec.Signature // Requester's Commitment
FundingTXSigs []*btcec.Signature
}
func (c *FundingSignAccept) Decode(r io.Reader, pver uint32) error {
// ReservationID (8)
// CommitSig (73)
// First byte length then sig
// FundingTXSigs
// First byte is number of FundingTxSigs
// Sorted list of the requester's input signatures
// (originally provided in the Funding Request)
err := readElements(r,
&c.ReservationID,
&c.CommitSig,
&c.FundingTXSigs)
if err != nil {
return err
}
return nil
}
// Creates a new FundingSignAccept
func NewFundingSignAccept() *FundingSignAccept {
return &FundingSignAccept{}
}
// Serializes the item from the FundingSignAccept struct
// Writes the data to w
func (c *FundingSignAccept) Encode(w io.Writer, pver uint32) error {
// ReservationID
// CommitSig
// FundingTxSigs
err := writeElements(w,
c.ReservationID,
c.CommitSig,
c.FundingTXSigs)
if err != nil {
return err
}
return nil
}
func (c *FundingSignAccept) Command() uint32 {
return CmdFundingSignAccept
}
func (c *FundingSignAccept) MaxPayloadLength(uint32) uint32 {
// 8 (base size) + 73 + (73maxSigSize*127maxInputs)
return 9352
}
// Makes sure the struct data is valid (e.g. no negatives or invalid pkscripts)
func (c *FundingSignAccept) Validate() error {
// We're good!
return nil
}
func (c *FundingSignAccept) String() string {
var sigs string
for i, in := range c.FundingTXSigs {
sigs += fmt.Sprintf("\n Slice\t%d\n", i)
if in != nil {
sigs += fmt.Sprintf("\tSig\t%x\n", in.Serialize())
}
}
var serializedSig []byte
if &c.CommitSig != nil && c.CommitSig.R != nil {
serializedSig = c.CommitSig.Serialize()
}
return fmt.Sprintf("\n--- Begin FundingSignAccept ---\n") +
fmt.Sprintf("ReservationID:\t\t%d\n", c.ReservationID) +
fmt.Sprintf("CommitSig\t\t%x\n", serializedSig) +
fmt.Sprintf("FundingTxSigs:") +
sigs +
fmt.Sprintf("--- End FundingSignAccept ---\n")
}