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mod.rs
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//! Transaction types.
use crate::{BlockHashOrNumber, Bytes, TxHash, B256, U256};
use alloy_eips::eip7702::SignedAuthorization;
use alloy_primitives::{keccak256, Address, TxKind};
use alloy_consensus::{SignableTransaction, TxEip1559, TxEip2930, TxEip4844, TxEip7702, TxLegacy};
use alloy_eips::eip2930::AccessList;
use alloy_primitives::Parity;
use alloy_rlp::{
Decodable, Encodable, Error as RlpError, Header, EMPTY_LIST_CODE, EMPTY_STRING_CODE,
};
use bytes::Buf;
use core::mem;
use derive_more::{AsRef, Deref};
use once_cell::sync::Lazy;
use rayon::prelude::{IntoParallelIterator, ParallelIterator};
use serde::{Deserialize, Serialize};
use signature::{decode_with_eip155_chain_id, with_eip155_parity};
pub use error::{
InvalidTransactionError, TransactionConversionError, TryFromRecoveredTransactionError,
};
pub use meta::TransactionMeta;
pub use pooled::{PooledTransactionsElement, PooledTransactionsElementEcRecovered};
#[cfg(all(feature = "c-kzg", any(test, feature = "arbitrary")))]
pub use sidecar::generate_blob_sidecar;
#[cfg(feature = "c-kzg")]
pub use sidecar::BlobTransactionValidationError;
pub use sidecar::{BlobTransaction, BlobTransactionSidecar};
pub use compat::FillTxEnv;
pub use signature::{
extract_chain_id, legacy_parity, recover_signer, recover_signer_unchecked, Signature,
};
pub use tx_type::{
TxType, EIP1559_TX_TYPE_ID, EIP2930_TX_TYPE_ID, EIP4844_TX_TYPE_ID, EIP7702_TX_TYPE_ID,
LEGACY_TX_TYPE_ID,
};
pub use variant::TransactionSignedVariant;
pub(crate) mod access_list;
mod compat;
mod error;
mod meta;
mod pooled;
mod sidecar;
mod signature;
mod tx_type;
pub(crate) mod util;
mod variant;
#[cfg(feature = "optimism")]
pub use op_alloy_consensus::TxDeposit;
#[cfg(feature = "optimism")]
pub use reth_optimism_chainspec::optimism_deposit_tx_signature;
#[cfg(feature = "optimism")]
pub use tx_type::DEPOSIT_TX_TYPE_ID;
#[cfg(any(test, feature = "reth-codec"))]
use tx_type::{
COMPACT_EXTENDED_IDENTIFIER_FLAG, COMPACT_IDENTIFIER_EIP1559, COMPACT_IDENTIFIER_EIP2930,
COMPACT_IDENTIFIER_LEGACY,
};
#[cfg(test)]
use reth_codecs::Compact;
use alloc::vec::Vec;
/// Either a transaction hash or number.
pub type TxHashOrNumber = BlockHashOrNumber;
// Expected number of transactions where we can expect a speed-up by recovering the senders in
// parallel.
pub(crate) static PARALLEL_SENDER_RECOVERY_THRESHOLD: Lazy<usize> =
Lazy::new(|| match rayon::current_num_threads() {
0..=1 => usize::MAX,
2..=8 => 10,
_ => 5,
});
/// A raw transaction.
///
/// Transaction types were introduced in [EIP-2718](https://eips.ethereum.org/EIPS/eip-2718).
#[derive(Debug, Clone, PartialEq, Eq, Hash, Serialize, Deserialize, derive_more::From)]
#[cfg_attr(any(test, feature = "reth-codec"), reth_codecs::add_arbitrary_tests(compact))]
pub enum Transaction {
/// Legacy transaction (type `0x0`).
///
/// Traditional Ethereum transactions, containing parameters `nonce`, `gasPrice`, `gasLimit`,
/// `to`, `value`, `data`, `v`, `r`, and `s`.
///
/// These transactions do not utilize access lists nor do they incorporate EIP-1559 fee market
/// changes.
Legacy(TxLegacy),
/// Transaction with an [`AccessList`] ([EIP-2930](https://eips.ethereum.org/EIPS/eip-2930)), type `0x1`.
///
/// The `accessList` specifies an array of addresses and storage keys that the transaction
/// plans to access, enabling gas savings on cross-contract calls by pre-declaring the accessed
/// contract and storage slots.
Eip2930(TxEip2930),
/// A transaction with a priority fee ([EIP-1559](https://eips.ethereum.org/EIPS/eip-1559)), type `0x2`.
///
/// Unlike traditional transactions, EIP-1559 transactions use an in-protocol, dynamically
/// changing base fee per gas, adjusted at each block to manage network congestion.
///
/// - `maxPriorityFeePerGas`, specifying the maximum fee above the base fee the sender is
/// willing to pay
/// - `maxFeePerGas`, setting the maximum total fee the sender is willing to pay.
///
/// The base fee is burned, while the priority fee is paid to the miner who includes the
/// transaction, incentivizing miners to include transactions with higher priority fees per
/// gas.
Eip1559(TxEip1559),
/// Shard Blob Transactions ([EIP-4844](https://eips.ethereum.org/EIPS/eip-4844)), type `0x3`.
///
/// Shard Blob Transactions introduce a new transaction type called a blob-carrying transaction
/// to reduce gas costs. These transactions are similar to regular Ethereum transactions but
/// include additional data called a blob.
///
/// Blobs are larger (~125 kB) and cheaper than the current calldata, providing an immutable
/// and read-only memory for storing transaction data.
///
/// EIP-4844, also known as proto-danksharding, implements the framework and logic of
/// danksharding, introducing new transaction formats and verification rules.
Eip4844(TxEip4844),
/// EOA Set Code Transactions ([EIP-7702](https://eips.ethereum.org/EIPS/eip-7702)), type `0x4`.
///
/// EOA Set Code Transactions give the ability to temporarily set contract code for an
/// EOA for a single transaction. This allows for temporarily adding smart contract
/// functionality to the EOA.
Eip7702(TxEip7702),
/// Optimism deposit transaction.
#[cfg(feature = "optimism")]
Deposit(TxDeposit),
}
#[cfg(any(test, feature = "arbitrary"))]
impl<'a> arbitrary::Arbitrary<'a> for Transaction {
fn arbitrary(u: &mut arbitrary::Unstructured<'a>) -> arbitrary::Result<Self> {
let mut tx = match TxType::arbitrary(u)? {
TxType::Legacy => {
let mut tx = TxLegacy::arbitrary(u)?;
tx.gas_limit = (tx.gas_limit as u64).into();
Self::Legacy(tx)
}
TxType::Eip2930 => {
let mut tx = TxEip2930::arbitrary(u)?;
tx.gas_limit = (tx.gas_limit as u64).into();
Self::Eip2930(tx)
}
TxType::Eip1559 => {
let mut tx = TxEip1559::arbitrary(u)?;
tx.gas_limit = (tx.gas_limit as u64).into();
Self::Eip1559(tx)
}
TxType::Eip4844 => {
let mut tx = TxEip4844::arbitrary(u)?;
tx.gas_limit = (tx.gas_limit as u64).into();
Self::Eip4844(tx)
}
TxType::Eip7702 => {
let mut tx = TxEip7702::arbitrary(u)?;
tx.gas_limit = (tx.gas_limit as u64).into();
Self::Eip7702(tx)
}
#[cfg(feature = "optimism")]
TxType::Deposit => {
let mut tx = TxDeposit::arbitrary(u)?;
tx.gas_limit = (tx.gas_limit as u64).into();
Self::Deposit(tx)
}
};
// Otherwise we might overflow when calculating `v` on `recalculate_hash`
if let Some(chain_id) = tx.chain_id() {
tx.set_chain_id(chain_id % (u64::MAX / 2 - 36));
}
Ok(tx)
}
}
// === impl Transaction ===
impl Transaction {
/// Heavy operation that return signature hash over rlp encoded transaction.
/// It is only for signature signing or signer recovery.
pub fn signature_hash(&self) -> B256 {
match self {
Self::Legacy(tx) => tx.signature_hash(),
Self::Eip2930(tx) => tx.signature_hash(),
Self::Eip1559(tx) => tx.signature_hash(),
Self::Eip4844(tx) => tx.signature_hash(),
Self::Eip7702(tx) => tx.signature_hash(),
#[cfg(feature = "optimism")]
Self::Deposit(_) => B256::ZERO,
}
}
/// Get `chain_id`.
pub const fn chain_id(&self) -> Option<u64> {
match self {
Self::Legacy(TxLegacy { chain_id, .. }) => *chain_id,
Self::Eip2930(TxEip2930 { chain_id, .. }) |
Self::Eip1559(TxEip1559 { chain_id, .. }) |
Self::Eip4844(TxEip4844 { chain_id, .. }) |
Self::Eip7702(TxEip7702 { chain_id, .. }) => Some(*chain_id),
#[cfg(feature = "optimism")]
Self::Deposit(_) => None,
}
}
/// Sets the transaction's chain id to the provided value.
pub fn set_chain_id(&mut self, chain_id: u64) {
match self {
Self::Legacy(TxLegacy { chain_id: ref mut c, .. }) => *c = Some(chain_id),
Self::Eip2930(TxEip2930 { chain_id: ref mut c, .. }) |
Self::Eip1559(TxEip1559 { chain_id: ref mut c, .. }) |
Self::Eip4844(TxEip4844 { chain_id: ref mut c, .. }) |
Self::Eip7702(TxEip7702 { chain_id: ref mut c, .. }) => *c = chain_id,
#[cfg(feature = "optimism")]
Self::Deposit(_) => { /* noop */ }
}
}
/// Gets the transaction's [`TxKind`], which is the address of the recipient or
/// [`TxKind::Create`] if the transaction is a contract creation.
pub const fn kind(&self) -> TxKind {
match self {
Self::Legacy(TxLegacy { to, .. }) |
Self::Eip2930(TxEip2930 { to, .. }) |
Self::Eip1559(TxEip1559 { to, .. }) => *to,
Self::Eip4844(TxEip4844 { to, .. }) | Self::Eip7702(TxEip7702 { to, .. }) => {
TxKind::Call(*to)
}
#[cfg(feature = "optimism")]
Self::Deposit(TxDeposit { to, .. }) => *to,
}
}
/// Get the transaction's address of the contract that will be called, or the address that will
/// receive the transfer.
///
/// Returns `None` if this is a `CREATE` transaction.
pub fn to(&self) -> Option<Address> {
self.kind().to().copied()
}
/// Get the transaction's type
pub const fn tx_type(&self) -> TxType {
match self {
Self::Legacy(_) => TxType::Legacy,
Self::Eip2930(_) => TxType::Eip2930,
Self::Eip1559(_) => TxType::Eip1559,
Self::Eip4844(_) => TxType::Eip4844,
Self::Eip7702(_) => TxType::Eip7702,
#[cfg(feature = "optimism")]
Self::Deposit(_) => TxType::Deposit,
}
}
/// Gets the transaction's value field.
pub const fn value(&self) -> U256 {
*match self {
Self::Legacy(TxLegacy { value, .. }) |
Self::Eip2930(TxEip2930 { value, .. }) |
Self::Eip1559(TxEip1559 { value, .. }) |
Self::Eip4844(TxEip4844 { value, .. }) |
Self::Eip7702(TxEip7702 { value, .. }) => value,
#[cfg(feature = "optimism")]
Self::Deposit(TxDeposit { value, .. }) => value,
}
}
/// Get the transaction's nonce.
pub const fn nonce(&self) -> u64 {
match self {
Self::Legacy(TxLegacy { nonce, .. }) |
Self::Eip2930(TxEip2930 { nonce, .. }) |
Self::Eip1559(TxEip1559 { nonce, .. }) |
Self::Eip4844(TxEip4844 { nonce, .. }) |
Self::Eip7702(TxEip7702 { nonce, .. }) => *nonce,
// Deposit transactions do not have nonces.
#[cfg(feature = "optimism")]
Self::Deposit(_) => 0,
}
}
/// Returns the [`AccessList`] of the transaction.
///
/// Returns `None` for legacy transactions.
pub const fn access_list(&self) -> Option<&AccessList> {
match self {
Self::Legacy(_) => None,
Self::Eip2930(tx) => Some(&tx.access_list),
Self::Eip1559(tx) => Some(&tx.access_list),
Self::Eip4844(tx) => Some(&tx.access_list),
Self::Eip7702(tx) => Some(&tx.access_list),
#[cfg(feature = "optimism")]
Self::Deposit(_) => None,
}
}
/// Returns the [`SignedAuthorization`] list of the transaction.
///
/// Returns `None` if this transaction is not EIP-7702.
pub fn authorization_list(&self) -> Option<&[SignedAuthorization]> {
match self {
Self::Eip7702(tx) => Some(&tx.authorization_list),
_ => None,
}
}
/// Get the gas limit of the transaction.
pub const fn gas_limit(&self) -> u64 {
match self {
Self::Legacy(TxLegacy { gas_limit, .. }) |
Self::Eip1559(TxEip1559 { gas_limit, .. }) |
Self::Eip4844(TxEip4844 { gas_limit, .. }) |
Self::Eip7702(TxEip7702 { gas_limit, .. }) |
Self::Eip2930(TxEip2930 { gas_limit, .. }) => *gas_limit as u64,
#[cfg(feature = "optimism")]
Self::Deposit(TxDeposit { gas_limit, .. }) => *gas_limit as u64,
}
}
/// Returns true if the tx supports dynamic fees
pub const fn is_dynamic_fee(&self) -> bool {
match self {
Self::Legacy(_) | Self::Eip2930(_) => false,
Self::Eip1559(_) | Self::Eip4844(_) | Self::Eip7702(_) => true,
#[cfg(feature = "optimism")]
Self::Deposit(_) => false,
}
}
/// Max fee per gas for eip1559 transaction, for legacy transactions this is `gas_price`.
///
/// This is also commonly referred to as the "Gas Fee Cap" (`GasFeeCap`).
pub const fn max_fee_per_gas(&self) -> u128 {
match self {
Self::Legacy(TxLegacy { gas_price, .. }) |
Self::Eip2930(TxEip2930 { gas_price, .. }) => *gas_price,
Self::Eip1559(TxEip1559 { max_fee_per_gas, .. }) |
Self::Eip4844(TxEip4844 { max_fee_per_gas, .. }) |
Self::Eip7702(TxEip7702 { max_fee_per_gas, .. }) => *max_fee_per_gas,
// Deposit transactions buy their L2 gas on L1 and, as such, the L2 gas is not
// refundable.
#[cfg(feature = "optimism")]
Self::Deposit(_) => 0,
}
}
/// Max priority fee per gas for eip1559 transaction, for legacy and eip2930 transactions this
/// is `None`
///
/// This is also commonly referred to as the "Gas Tip Cap" (`GasTipCap`).
pub const fn max_priority_fee_per_gas(&self) -> Option<u128> {
match self {
Self::Legacy(_) | Self::Eip2930(_) => None,
Self::Eip1559(TxEip1559 { max_priority_fee_per_gas, .. }) |
Self::Eip4844(TxEip4844 { max_priority_fee_per_gas, .. }) |
Self::Eip7702(TxEip7702 { max_priority_fee_per_gas, .. }) => {
Some(*max_priority_fee_per_gas)
}
#[cfg(feature = "optimism")]
Self::Deposit(_) => None,
}
}
/// Blob versioned hashes for eip4844 transaction, for legacy, eip1559, eip2930 and eip7702
/// transactions this is `None`
///
/// This is also commonly referred to as the "blob versioned hashes" (`BlobVersionedHashes`).
pub fn blob_versioned_hashes(&self) -> Option<Vec<B256>> {
match self {
Self::Legacy(_) | Self::Eip2930(_) | Self::Eip1559(_) | Self::Eip7702(_) => None,
Self::Eip4844(TxEip4844 { blob_versioned_hashes, .. }) => {
Some(blob_versioned_hashes.clone())
}
#[cfg(feature = "optimism")]
Self::Deposit(_) => None,
}
}
/// Max fee per blob gas for eip4844 transaction [`TxEip4844`].
///
/// Returns `None` for non-eip4844 transactions.
///
/// This is also commonly referred to as the "Blob Gas Fee Cap" (`BlobGasFeeCap`).
pub const fn max_fee_per_blob_gas(&self) -> Option<u128> {
match self {
Self::Eip4844(TxEip4844 { max_fee_per_blob_gas, .. }) => Some(*max_fee_per_blob_gas),
_ => None,
}
}
/// Returns the blob gas used for all blobs of the EIP-4844 transaction if it is an EIP-4844
/// transaction.
///
/// This is the number of blobs times the
/// [`DATA_GAS_PER_BLOB`](crate::constants::eip4844::DATA_GAS_PER_BLOB) a single blob consumes.
pub fn blob_gas_used(&self) -> Option<u64> {
self.as_eip4844().map(TxEip4844::blob_gas)
}
/// Return the max priority fee per gas if the transaction is an EIP-1559 transaction, and
/// otherwise return the gas price.
///
/// # Warning
///
/// This is different than the `max_priority_fee_per_gas` method, which returns `None` for
/// non-EIP-1559 transactions.
pub const fn priority_fee_or_price(&self) -> u128 {
match self {
Self::Legacy(TxLegacy { gas_price, .. }) |
Self::Eip2930(TxEip2930 { gas_price, .. }) => *gas_price,
Self::Eip1559(TxEip1559 { max_priority_fee_per_gas, .. }) |
Self::Eip4844(TxEip4844 { max_priority_fee_per_gas, .. }) |
Self::Eip7702(TxEip7702 { max_priority_fee_per_gas, .. }) => *max_priority_fee_per_gas,
#[cfg(feature = "optimism")]
Self::Deposit(_) => 0,
}
}
/// Returns the effective gas price for the given base fee.
///
/// If the transaction is a legacy or EIP2930 transaction, the gas price is returned.
pub const fn effective_gas_price(&self, base_fee: Option<u64>) -> u128 {
match self {
Self::Legacy(tx) => tx.gas_price,
Self::Eip2930(tx) => tx.gas_price,
Self::Eip1559(dynamic_tx) => dynamic_tx.effective_gas_price(base_fee),
Self::Eip4844(dynamic_tx) => dynamic_tx.effective_gas_price(base_fee),
Self::Eip7702(dynamic_tx) => dynamic_tx.effective_gas_price(base_fee),
#[cfg(feature = "optimism")]
Self::Deposit(_) => 0,
}
}
/// Returns the effective miner gas tip cap (`gasTipCap`) for the given base fee:
/// `min(maxFeePerGas - baseFee, maxPriorityFeePerGas)`
///
/// If the base fee is `None`, the `max_priority_fee_per_gas`, or gas price for non-EIP1559
/// transactions is returned.
///
/// Returns `None` if the basefee is higher than the [`Transaction::max_fee_per_gas`].
pub fn effective_tip_per_gas(&self, base_fee: Option<u64>) -> Option<u128> {
let base_fee = match base_fee {
Some(base_fee) => base_fee as u128,
None => return Some(self.priority_fee_or_price()),
};
let max_fee_per_gas = self.max_fee_per_gas();
// Check if max_fee_per_gas is less than base_fee
if max_fee_per_gas < base_fee {
return None
}
// Calculate the difference between max_fee_per_gas and base_fee
let fee = max_fee_per_gas - base_fee;
// Compare the fee with max_priority_fee_per_gas (or gas price for non-EIP1559 transactions)
if let Some(priority_fee) = self.max_priority_fee_per_gas() {
Some(fee.min(priority_fee))
} else {
Some(fee)
}
}
/// Get the transaction's input field.
pub const fn input(&self) -> &Bytes {
match self {
Self::Legacy(TxLegacy { input, .. }) |
Self::Eip2930(TxEip2930 { input, .. }) |
Self::Eip1559(TxEip1559 { input, .. }) |
Self::Eip4844(TxEip4844 { input, .. }) |
Self::Eip7702(TxEip7702 { input, .. }) => input,
#[cfg(feature = "optimism")]
Self::Deposit(TxDeposit { input, .. }) => input,
}
}
/// Returns the source hash of the transaction, which uniquely identifies its source.
/// If not a deposit transaction, this will always return `None`.
#[cfg(feature = "optimism")]
pub const fn source_hash(&self) -> Option<B256> {
match self {
Self::Deposit(TxDeposit { source_hash, .. }) => Some(*source_hash),
_ => None,
}
}
/// Returns the amount of ETH locked up on L1 that will be minted on L2. If the transaction
/// is not a deposit transaction, this will always return `None`.
#[cfg(feature = "optimism")]
pub const fn mint(&self) -> Option<u128> {
match self {
Self::Deposit(TxDeposit { mint, .. }) => *mint,
_ => None,
}
}
/// Returns whether or not the transaction is a system transaction. If the transaction
/// is not a deposit transaction, this will always return `false`.
#[cfg(feature = "optimism")]
pub const fn is_system_transaction(&self) -> bool {
match self {
Self::Deposit(TxDeposit { is_system_transaction, .. }) => *is_system_transaction,
_ => false,
}
}
/// Returns whether or not the transaction is an Optimism Deposited transaction.
#[cfg(feature = "optimism")]
pub const fn is_deposit(&self) -> bool {
matches!(self, Self::Deposit(_))
}
/// This encodes the transaction _without_ the signature, and is only suitable for creating a
/// hash intended for signing.
pub fn encode_without_signature(&self, out: &mut dyn bytes::BufMut) {
Encodable::encode(self, out);
}
/// Inner encoding function that is used for both rlp [`Encodable`] trait and for calculating
/// hash that for eip2718 does not require rlp header
pub fn encode_with_signature(
&self,
signature: &Signature,
out: &mut dyn bytes::BufMut,
with_header: bool,
) {
match self {
Self::Legacy(legacy_tx) => {
// do nothing w/ with_header
legacy_tx.encode_with_signature_fields(
&with_eip155_parity(signature, legacy_tx.chain_id),
out,
)
}
Self::Eip2930(access_list_tx) => {
access_list_tx.encode_with_signature(signature, out, with_header)
}
Self::Eip1559(dynamic_fee_tx) => {
dynamic_fee_tx.encode_with_signature(signature, out, with_header)
}
Self::Eip4844(blob_tx) => blob_tx.encode_with_signature(signature, out, with_header),
Self::Eip7702(set_code_tx) => {
set_code_tx.encode_with_signature(signature, out, with_header)
}
#[cfg(feature = "optimism")]
Self::Deposit(deposit_tx) => deposit_tx.encode_inner(out, with_header),
}
}
/// This sets the transaction's gas limit.
pub fn set_gas_limit(&mut self, gas_limit: u64) {
match self {
Self::Legacy(tx) => tx.gas_limit = gas_limit.into(),
Self::Eip2930(tx) => tx.gas_limit = gas_limit.into(),
Self::Eip1559(tx) => tx.gas_limit = gas_limit.into(),
Self::Eip4844(tx) => tx.gas_limit = gas_limit.into(),
Self::Eip7702(tx) => tx.gas_limit = gas_limit.into(),
#[cfg(feature = "optimism")]
Self::Deposit(tx) => tx.gas_limit = gas_limit.into(),
}
}
/// This sets the transaction's nonce.
pub fn set_nonce(&mut self, nonce: u64) {
match self {
Self::Legacy(tx) => tx.nonce = nonce,
Self::Eip2930(tx) => tx.nonce = nonce,
Self::Eip1559(tx) => tx.nonce = nonce,
Self::Eip4844(tx) => tx.nonce = nonce,
Self::Eip7702(tx) => tx.nonce = nonce,
#[cfg(feature = "optimism")]
Self::Deposit(_) => { /* noop */ }
}
}
/// This sets the transaction's value.
pub fn set_value(&mut self, value: U256) {
match self {
Self::Legacy(tx) => tx.value = value,
Self::Eip2930(tx) => tx.value = value,
Self::Eip1559(tx) => tx.value = value,
Self::Eip4844(tx) => tx.value = value,
Self::Eip7702(tx) => tx.value = value,
#[cfg(feature = "optimism")]
Self::Deposit(tx) => tx.value = value,
}
}
/// This sets the transaction's input field.
pub fn set_input(&mut self, input: Bytes) {
match self {
Self::Legacy(tx) => tx.input = input,
Self::Eip2930(tx) => tx.input = input,
Self::Eip1559(tx) => tx.input = input,
Self::Eip4844(tx) => tx.input = input,
Self::Eip7702(tx) => tx.input = input,
#[cfg(feature = "optimism")]
Self::Deposit(tx) => tx.input = input,
}
}
/// Calculates a heuristic for the in-memory size of the [Transaction].
#[inline]
pub fn size(&self) -> usize {
match self {
Self::Legacy(tx) => tx.size(),
Self::Eip2930(tx) => tx.size(),
Self::Eip1559(tx) => tx.size(),
Self::Eip4844(tx) => tx.size(),
Self::Eip7702(tx) => tx.size(),
#[cfg(feature = "optimism")]
Self::Deposit(tx) => tx.size(),
}
}
/// Returns true if the transaction is a legacy transaction.
#[inline]
pub const fn is_legacy(&self) -> bool {
matches!(self, Self::Legacy(_))
}
/// Returns true if the transaction is an EIP-2930 transaction.
#[inline]
pub const fn is_eip2930(&self) -> bool {
matches!(self, Self::Eip2930(_))
}
/// Returns true if the transaction is an EIP-1559 transaction.
#[inline]
pub const fn is_eip1559(&self) -> bool {
matches!(self, Self::Eip1559(_))
}
/// Returns true if the transaction is an EIP-4844 transaction.
#[inline]
pub const fn is_eip4844(&self) -> bool {
matches!(self, Self::Eip4844(_))
}
/// Returns true if the transaction is an EIP-7702 transaction.
#[inline]
pub const fn is_eip7702(&self) -> bool {
matches!(self, Self::Eip7702(_))
}
/// Returns the [`TxLegacy`] variant if the transaction is a legacy transaction.
pub const fn as_legacy(&self) -> Option<&TxLegacy> {
match self {
Self::Legacy(tx) => Some(tx),
_ => None,
}
}
/// Returns the [`TxEip2930`] variant if the transaction is an EIP-2930 transaction.
pub const fn as_eip2930(&self) -> Option<&TxEip2930> {
match self {
Self::Eip2930(tx) => Some(tx),
_ => None,
}
}
/// Returns the [`TxEip1559`] variant if the transaction is an EIP-1559 transaction.
pub const fn as_eip1559(&self) -> Option<&TxEip1559> {
match self {
Self::Eip1559(tx) => Some(tx),
_ => None,
}
}
/// Returns the [`TxEip4844`] variant if the transaction is an EIP-4844 transaction.
pub const fn as_eip4844(&self) -> Option<&TxEip4844> {
match self {
Self::Eip4844(tx) => Some(tx),
_ => None,
}
}
/// Returns the [`TxEip7702`] variant if the transaction is an EIP-7702 transaction.
pub const fn as_eip7702(&self) -> Option<&TxEip7702> {
match self {
Self::Eip7702(tx) => Some(tx),
_ => None,
}
}
}
#[cfg(any(test, feature = "reth-codec"))]
impl reth_codecs::Compact for Transaction {
// Serializes the TxType to the buffer if necessary, returning 2 bits of the type as an
// identifier instead of the length.
fn to_compact<B>(&self, buf: &mut B) -> usize
where
B: bytes::BufMut + AsMut<[u8]>,
{
let identifier = self.tx_type().to_compact(buf);
match self {
Self::Legacy(tx) => {
tx.to_compact(buf);
}
Self::Eip2930(tx) => {
tx.to_compact(buf);
}
Self::Eip1559(tx) => {
tx.to_compact(buf);
}
Self::Eip4844(tx) => {
tx.to_compact(buf);
}
Self::Eip7702(tx) => {
tx.to_compact(buf);
}
#[cfg(feature = "optimism")]
Self::Deposit(tx) => {
tx.to_compact(buf);
}
}
identifier
}
// For backwards compatibility purposes, only 2 bits of the type are encoded in the identifier
// parameter. In the case of a [`COMPACT_EXTENDED_IDENTIFIER_FLAG`], the full transaction type
// is read from the buffer as a single byte.
//
// # Panics
//
// A panic will be triggered if an identifier larger than 3 is passed from the database. For
// optimism a identifier with value [`DEPOSIT_TX_TYPE_ID`] is allowed.
fn from_compact(mut buf: &[u8], identifier: usize) -> (Self, &[u8]) {
match identifier {
COMPACT_IDENTIFIER_LEGACY => {
let (tx, buf) = TxLegacy::from_compact(buf, buf.len());
(Self::Legacy(tx), buf)
}
COMPACT_IDENTIFIER_EIP2930 => {
let (tx, buf) = TxEip2930::from_compact(buf, buf.len());
(Self::Eip2930(tx), buf)
}
COMPACT_IDENTIFIER_EIP1559 => {
let (tx, buf) = TxEip1559::from_compact(buf, buf.len());
(Self::Eip1559(tx), buf)
}
COMPACT_EXTENDED_IDENTIFIER_FLAG => {
// An identifier of 3 indicates that the transaction type did not fit into
// the backwards compatible 2 bit identifier, their transaction types are
// larger than 2 bits (eg. 4844 and Deposit Transactions). In this case,
// we need to read the concrete transaction type from the buffer by
// reading the full 8 bits (single byte) and match on this transaction type.
let identifier = buf.get_u8();
match identifier {
EIP4844_TX_TYPE_ID => {
let (tx, buf) = TxEip4844::from_compact(buf, buf.len());
(Self::Eip4844(tx), buf)
}
EIP7702_TX_TYPE_ID => {
let (tx, buf) = TxEip7702::from_compact(buf, buf.len());
(Self::Eip7702(tx), buf)
}
#[cfg(feature = "optimism")]
DEPOSIT_TX_TYPE_ID => {
let (tx, buf) = TxDeposit::from_compact(buf, buf.len());
(Self::Deposit(tx), buf)
}
_ => unreachable!("Junk data in database: unknown Transaction variant"),
}
}
_ => unreachable!("Junk data in database: unknown Transaction variant"),
}
}
}
impl Default for Transaction {
fn default() -> Self {
Self::Legacy(TxLegacy::default())
}
}
impl Encodable for Transaction {
/// This encodes the transaction _without_ the signature, and is only suitable for creating a
/// hash intended for signing.
fn encode(&self, out: &mut dyn bytes::BufMut) {
match self {
Self::Legacy(legacy_tx) => {
legacy_tx.encode_for_signing(out);
}
Self::Eip2930(access_list_tx) => {
access_list_tx.encode_for_signing(out);
}
Self::Eip1559(dynamic_fee_tx) => {
dynamic_fee_tx.encode_for_signing(out);
}
Self::Eip4844(blob_tx) => {
blob_tx.encode_for_signing(out);
}
Self::Eip7702(set_code_tx) => {
set_code_tx.encode_for_signing(out);
}
#[cfg(feature = "optimism")]
Self::Deposit(deposit_tx) => {
deposit_tx.encode_inner(out, true);
}
}
}
fn length(&self) -> usize {
match self {
Self::Legacy(legacy_tx) => legacy_tx.payload_len_for_signature(),
Self::Eip2930(access_list_tx) => access_list_tx.payload_len_for_signature(),
Self::Eip1559(dynamic_fee_tx) => dynamic_fee_tx.payload_len_for_signature(),
Self::Eip4844(blob_tx) => blob_tx.payload_len_for_signature(),
Self::Eip7702(set_code_tx) => set_code_tx.payload_len_for_signature(),
#[cfg(feature = "optimism")]
Self::Deposit(deposit_tx) => deposit_tx.encoded_len(true),
}
}
}
/// Signed transaction without its Hash. Used type for inserting into the DB.
///
/// This can by converted to [`TransactionSigned`] by calling [`TransactionSignedNoHash::hash`].
#[derive(Debug, Clone, PartialEq, Eq, Hash, AsRef, Deref, Serialize, Deserialize)]
#[cfg_attr(any(test, feature = "reth-codec"), reth_codecs::add_arbitrary_tests(compact))]
pub struct TransactionSignedNoHash {
/// The transaction signature values
pub signature: Signature,
/// Raw transaction info
#[deref]
#[as_ref]
pub transaction: Transaction,
}
impl TransactionSignedNoHash {
/// Calculates the transaction hash. If used more than once, it's better to convert it to
/// [`TransactionSigned`] first.
pub fn hash(&self) -> B256 {
// pre-allocate buffer for the transaction
let mut buf = Vec::with_capacity(128 + self.transaction.input().len());
self.transaction.encode_with_signature(&self.signature, &mut buf, false);
keccak256(&buf)
}
/// Recover signer from signature and hash.
///
/// Returns `None` if the transaction's signature is invalid, see also [`Self::recover_signer`].
pub fn recover_signer(&self) -> Option<Address> {
// Optimism's Deposit transaction does not have a signature. Directly return the
// `from` address.
#[cfg(feature = "optimism")]
if let Transaction::Deposit(TxDeposit { from, .. }) = self.transaction {
return Some(from)
}
let signature_hash = self.signature_hash();
recover_signer(&self.signature, signature_hash)
}
/// Recover signer from signature and hash _without ensuring that the signature has a low `s`
/// value_.
///
/// Re-uses a given buffer to avoid numerous reallocations when recovering batches. **Clears the
/// buffer before use.**
///
/// Returns `None` if the transaction's signature is invalid, see also
/// [`recover_signer_unchecked`].
///
/// # Optimism
///
/// For optimism this will return [`Address::ZERO`] if the Signature is empty, this is because pre bedrock (on OP mainnet), relay messages to the L2 Cross Domain Messenger were sent as legacy transactions from the zero address with an empty signature, e.g.: <https://optimistic.etherscan.io/tx/0x1bb352ff9215efe5a4c102f45d730bae323c3288d2636672eb61543ddd47abad>
/// This makes it possible to import pre bedrock transactions via the sender recovery stage.
pub fn encode_and_recover_unchecked(&self, buffer: &mut Vec<u8>) -> Option<Address> {
buffer.clear();
self.transaction.encode_without_signature(buffer);
// Optimism's Deposit transaction does not have a signature. Directly return the
// `from` address.
#[cfg(feature = "optimism")]
{
if let Transaction::Deposit(TxDeposit { from, .. }) = self.transaction {
return Some(from)
}
// pre bedrock system transactions were sent from the zero address as legacy
// transactions with an empty signature
//
// NOTE: this is very hacky and only relevant for op-mainnet pre bedrock
if self.is_legacy() && self.signature == optimism_deposit_tx_signature() {
return Some(Address::ZERO)
}
}
recover_signer_unchecked(&self.signature, keccak256(buffer))
}
/// Converts into a transaction type with its hash: [`TransactionSigned`].
///
/// Note: This will recalculate the hash of the transaction.
#[inline]
pub fn with_hash(self) -> TransactionSigned {
let Self { signature, transaction } = self;
TransactionSigned::from_transaction_and_signature(transaction, signature)
}
/// Recovers a list of signers from a transaction list iterator
///
/// Returns `None`, if some transaction's signature is invalid, see also
/// [`Self::recover_signer`].
pub fn recover_signers<'a, T>(txes: T, num_txes: usize) -> Option<Vec<Address>>
where
T: IntoParallelIterator<Item = &'a Self> + IntoIterator<Item = &'a Self> + Send,
{
if num_txes < *PARALLEL_SENDER_RECOVERY_THRESHOLD {
txes.into_iter().map(|tx| tx.recover_signer()).collect()
} else {
txes.into_par_iter().map(|tx| tx.recover_signer()).collect()
}
}
}
impl Default for TransactionSignedNoHash {
fn default() -> Self {
Self { signature: Signature::test_signature(), transaction: Default::default() }
}
}
#[cfg(any(test, feature = "arbitrary"))]
impl<'a> arbitrary::Arbitrary<'a> for TransactionSignedNoHash {
fn arbitrary(u: &mut arbitrary::Unstructured<'a>) -> arbitrary::Result<Self> {
let tx_signed = TransactionSigned::arbitrary(u)?;
Ok(Self { signature: tx_signed.signature, transaction: tx_signed.transaction })
}
}
#[cfg(any(test, feature = "reth-codec"))]
impl reth_codecs::Compact for TransactionSignedNoHash {
fn to_compact<B>(&self, buf: &mut B) -> usize
where
B: bytes::BufMut + AsMut<[u8]>,
{
let start = buf.as_mut().len();
// Placeholder for bitflags.
// The first byte uses 4 bits as flags: IsCompressed[1bit], TxType[2bits], Signature[1bit]
buf.put_u8(0);
let sig_bit = self.signature.to_compact(buf) as u8;
let zstd_bit = self.transaction.input().len() >= 32;
let tx_bits = if zstd_bit {
let mut tmp = Vec::with_capacity(256);
if cfg!(feature = "std") {
crate::compression::TRANSACTION_COMPRESSOR.with(|compressor| {
let mut compressor = compressor.borrow_mut();
let tx_bits = self.transaction.to_compact(&mut tmp);
buf.put_slice(&compressor.compress(&tmp).expect("Failed to compress"));
tx_bits as u8
})
} else {
let mut compressor = crate::compression::create_tx_compressor();
let tx_bits = self.transaction.to_compact(&mut tmp);
buf.put_slice(&compressor.compress(&tmp).expect("Failed to compress"));
tx_bits as u8
}
} else {
self.transaction.to_compact(buf) as u8
};
// Replace bitflags with the actual values
buf.as_mut()[start] = sig_bit | (tx_bits << 1) | ((zstd_bit as u8) << 3);
buf.as_mut().len() - start
}
fn from_compact(mut buf: &[u8], _len: usize) -> (Self, &[u8]) {
// The first byte uses 4 bits as flags: IsCompressed[1], TxType[2], Signature[1]
let bitflags = buf.get_u8() as usize;
let sig_bit = bitflags & 1;
let (mut signature, buf) = Signature::from_compact(buf, sig_bit);
let zstd_bit = bitflags >> 3;
let (transaction, buf) = if zstd_bit != 0 {
if cfg!(feature = "std") {
crate::compression::TRANSACTION_DECOMPRESSOR.with(|decompressor| {
let mut decompressor = decompressor.borrow_mut();
// TODO: enforce that zstd is only present at a "top" level type
let transaction_type = (bitflags & 0b110) >> 1;
let (transaction, _) =
Transaction::from_compact(decompressor.decompress(buf), transaction_type);