54 lines
993 B
Go
54 lines
993 B
Go
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package tpu
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import (
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"crypto/ed25519"
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"errors"
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"github.com/gagliardetto/binary"
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"github.com/gagliardetto/solana-go"
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)
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func ParseTx(p []byte) (tx *solana.Transaction, err error) {
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defer func() {
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if r := recover(); r != nil {
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err = errors.New("ParseTx panic")
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}
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}()
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tx, err = solana.TransactionFromDecoder(bin.NewBinDecoder(p))
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if err != nil {
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return nil, err
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}
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return
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}
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func VerifyTxSig(tx *solana.Transaction) (ok bool) {
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msg, err := tx.Message.MarshalBinary()
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if err != nil {
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panic(err)
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}
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signers := ExtractSigners(tx)
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if len(signers) != len(tx.Signatures) {
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return false
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}
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for i, sig := range tx.Signatures {
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if !ed25519.Verify(signers[i][:], msg, sig[:]) {
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return false
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}
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}
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return true
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}
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func ExtractSigners(tx *solana.Transaction) []solana.PublicKey {
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signers := make([]solana.PublicKey, 0, len(tx.Signatures))
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for _, acc := range tx.Message.AccountKeys {
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if tx.IsSigner(acc) {
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signers = append(signers, acc)
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}
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}
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return signers
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}
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