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core/types: add derived chain ID to LegacyTx JSON encoding #27452

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merged 5 commits into from Jun 13, 2023
Merged

core/types: add derived chain ID to LegacyTx JSON encoding #27452

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50f6c95
core/types: add derived chain ID to LegacyTx JSON encoding
freeman-jiang Jun 11, 2023
301218c
core/types: only derive the chain ID if tx is signed and post EIP-155
freeman-jiang Jun 11, 2023
cd6461f
core/types: simplify protected check
freeman-jiang Jun 11, 2023
c27c129
core/types: revert test
freeman-jiang Jun 11, 2023
b6d968a
core/types/transaction_marshalling: remove comment
lightclient Jun 12, 2023
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4 changes: 4 additions & 0 deletions core/types/transaction_marshalling.go
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Expand Up @@ -60,6 +60,10 @@ func (tx *Transaction) MarshalJSON() ([]byte, error) {
// Other fields are set conditionally depending on tx type.
switch itx := tx.inner.(type) {
case *LegacyTx:
// Only derive the chain ID if tx is signed and post EIP-155
if (itx.V.Sign() != 0 || itx.R.Sign() != 0 || itx.S.Sign() != 0) && tx.ChainId().Sign() != 0 {
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enc.ChainID = (*hexutil.Big)(tx.ChainId())
}
enc.Nonce = (*hexutil.Uint64)(&itx.Nonce)
enc.To = tx.To()
enc.Gas = (*hexutil.Uint64)(&itx.Gas)
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5 changes: 5 additions & 0 deletions core/types/transaction_test.go
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Expand Up @@ -25,6 +25,7 @@ import (
"math/big"
"math/rand"
"reflect"
"strings"
"testing"
"time"

Expand Down Expand Up @@ -501,6 +502,10 @@ func encodeDecodeJSON(tx *Transaction) (*Transaction, error) {
if err := json.Unmarshal(data, &parsedTx); err != nil {
return nil, fmt.Errorf("json decoding failed: %v", err)
}

if !strings.Contains(string(data), "chainId") {
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return nil, fmt.Errorf("json encoding does not contain chainId: %v", string(data))
}
return parsedTx, nil
}

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