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use super::{
super::NotPreparedError, Account, AccountError, ConnectedAccount, ExecutionV1, ExecutionV3,
PreparedExecutionV1, PreparedExecutionV3, RawExecutionV1, RawExecutionV3,
};
use crate::ExecutionEncoder;
use starknet_core::{
crypto::compute_hash_on_elements,
types::{
BroadcastedInvokeTransaction, BroadcastedInvokeTransactionV1,
BroadcastedInvokeTransactionV3, BroadcastedTransaction, Call, DataAvailabilityMode,
FeeEstimate, Felt, InvokeTransactionResult, ResourceBounds, ResourceBoundsMapping,
SimulatedTransaction, SimulationFlag, SimulationFlagForEstimateFee,
},
};
use starknet_crypto::PoseidonHasher;
use starknet_providers::Provider;
use starknet_signers::SignerInteractivityContext;
/// Cairo string for "invoke"
const PREFIX_INVOKE: Felt = Felt::from_raw([
513398556346534256,
18446744073709551615,
18446744073709551615,
18443034532770911073,
]);
/// 2 ^ 128 + 1
const QUERY_VERSION_ONE: Felt = Felt::from_raw([
576460752142433776,
18446744073709551584,
17407,
18446744073700081633,
]);
/// 2 ^ 128 + 3
const QUERY_VERSION_THREE: Felt = Felt::from_raw([
576460752142432688,
18446744073709551584,
17407,
18446744073700081569,
]);
impl<'a, A> ExecutionV1<'a, A> {
/// Constructs a new [`ExecutionV1`].
///
/// Users would typically use [`execute_v1`](fn.execute_v1) on an [`Account`] instead of
/// directly calling this method.
pub const fn new(calls: Vec<Call>, account: &'a A) -> Self {
Self {
account,
calls,
nonce: None,
max_fee: None,
fee_estimate_multiplier: 1.1,
}
}
/// Returns a new [`ExecutionV1`] with the `nonce`.
pub fn nonce(self, nonce: Felt) -> Self {
Self {
nonce: Some(nonce),
..self
}
}
/// Returns a new [`ExecutionV1`] with the `max_fee`.
pub fn max_fee(self, max_fee: Felt) -> Self {
Self {
max_fee: Some(max_fee),
..self
}
}
/// Returns a new [`ExecutionV1`] with the fee estimate multiplier. The multiplier is used
/// when transaction fee is not manually specified and must be fetched from a [`Provider`]
/// instead.
pub fn fee_estimate_multiplier(self, fee_estimate_multiplier: f64) -> Self {
Self {
fee_estimate_multiplier,
..self
}
}
/// Calling this function after manually specifying `nonce` and `max_fee` turns [`ExecutionV1`] into
/// [`PreparedExecutionV1`]. Returns `Err` if either field is `None`.
pub fn prepared(self) -> Result<PreparedExecutionV1<'a, A>, NotPreparedError> {
let nonce = self.nonce.ok_or(NotPreparedError)?;
let max_fee = self.max_fee.ok_or(NotPreparedError)?;
Ok(PreparedExecutionV1 {
account: self.account,
inner: RawExecutionV1 {
calls: self.calls,
nonce,
max_fee,
},
})
}
}
impl<'a, A> ExecutionV3<'a, A> {
/// Constructs a new [`ExecutionV3`].
///
/// Users would typically use [`execute_v3`](fn.execute_v3) on an [`Account`] instead of
/// directly calling this method.
pub const fn new(calls: Vec<Call>, account: &'a A) -> Self {
Self {
account,
calls,
nonce: None,
gas: None,
gas_price: None,
gas_estimate_multiplier: 1.5,
gas_price_estimate_multiplier: 1.5,
}
}
/// Returns a new [`ExecutionV3`] with the `nonce`.
pub fn nonce(self, nonce: Felt) -> Self {
Self {
nonce: Some(nonce),
..self
}
}
/// Returns a new [`ExecutionV3`] with the `gas`.
pub fn gas(self, gas: u64) -> Self {
Self {
gas: Some(gas),
..self
}
}
/// Returns a new [`ExecutionV3`] with the `gas_price`.
pub fn gas_price(self, gas_price: u128) -> Self {
Self {
gas_price: Some(gas_price),
..self
}
}
/// Returns a new [`ExecutionV3`] with the gas amount estimate multiplier. The multiplier is
/// used when the gas amount is not manually specified and must be fetched from a [`Provider`]
/// instead.
pub fn gas_estimate_multiplier(self, gas_estimate_multiplier: f64) -> Self {
Self {
gas_estimate_multiplier,
..self
}
}
/// Returns a new [`ExecutionV3`] with the gas price estimate multiplier. The multiplier is
/// used when the gas price is not manually specified and must be fetched from a [`Provider`]
/// instead.
pub fn gas_price_estimate_multiplier(self, gas_price_estimate_multiplier: f64) -> Self {
Self {
gas_price_estimate_multiplier,
..self
}
}
/// Calling this function after manually specifying `nonce`, `gas` and `gas_price` turns
/// [`ExecutionV3`] into [`PreparedExecutionV3`]. Returns `Err` if any field is `None`.
pub fn prepared(self) -> Result<PreparedExecutionV3<'a, A>, NotPreparedError> {
let nonce = self.nonce.ok_or(NotPreparedError)?;
let gas = self.gas.ok_or(NotPreparedError)?;
let gas_price = self.gas_price.ok_or(NotPreparedError)?;
Ok(PreparedExecutionV3 {
account: self.account,
inner: RawExecutionV3 {
calls: self.calls,
nonce,
gas,
gas_price,
},
})
}
}
impl<'a, A> ExecutionV1<'a, A>
where
A: ConnectedAccount + Sync,
{
/// Estimates transaction fees from a [`Provider`].
pub async fn estimate_fee(&self) -> Result<FeeEstimate, AccountError<A::SignError>> {
// Resolves nonce
let nonce = match self.nonce {
Some(value) => value,
None => self
.account
.get_nonce()
.await
.map_err(AccountError::Provider)?,
};
self.estimate_fee_with_nonce(nonce).await
}
/// Simulates the transaction from a [`Provider`]. Transaction validation and fee transfer can
/// be skipped.
pub async fn simulate(
&self,
skip_validate: bool,
skip_fee_charge: bool,
) -> Result<SimulatedTransaction, AccountError<A::SignError>> {
// Resolves nonce
let nonce = match self.nonce {
Some(value) => value,
None => self
.account
.get_nonce()
.await
.map_err(AccountError::Provider)?,
};
self.simulate_with_nonce(nonce, skip_validate, skip_fee_charge)
.await
}
/// Signs and broadcasts the transaction to the network.
pub async fn send(&self) -> Result<InvokeTransactionResult, AccountError<A::SignError>> {
self.prepare().await?.send().await
}
async fn prepare(&self) -> Result<PreparedExecutionV1<'a, A>, AccountError<A::SignError>> {
// Resolves nonce
let nonce = match self.nonce {
Some(value) => value,
None => self
.account
.get_nonce()
.await
.map_err(AccountError::Provider)?,
};
// Resolves max_fee
let max_fee = match self.max_fee {
Some(value) => value,
None => {
// Obtain the fee estimate
let fee_estimate = self.estimate_fee_with_nonce(nonce).await?;
// Convert the overall fee to little-endian bytes
let overall_fee_bytes = fee_estimate.overall_fee.to_bytes_le();
// Check if the remaining bytes after the first 8 are all zeros
if overall_fee_bytes.iter().skip(8).any(|&x| x != 0) {
return Err(AccountError::FeeOutOfRange);
}
// Convert the first 8 bytes to u64
let overall_fee_u64 =
u64::from_le_bytes(overall_fee_bytes[..8].try_into().unwrap());
// Perform necessary operations on overall_fee_u64 and convert to f64 then to u64
(((overall_fee_u64 as f64) * self.fee_estimate_multiplier) as u64).into()
}
};
Ok(PreparedExecutionV1 {
account: self.account,
inner: RawExecutionV1 {
calls: self.calls.clone(),
nonce,
max_fee,
},
})
}
async fn estimate_fee_with_nonce(
&self,
nonce: Felt,
) -> Result<FeeEstimate, AccountError<A::SignError>> {
let skip_signature = self
.account
.is_signer_interactive(SignerInteractivityContext::Execution { calls: &self.calls });
let prepared = PreparedExecutionV1 {
account: self.account,
inner: RawExecutionV1 {
calls: self.calls.clone(),
nonce,
max_fee: Felt::ZERO,
},
};
let invoke = prepared
.get_invoke_request(true, skip_signature)
.await
.map_err(AccountError::Signing)?;
self.account
.provider()
.estimate_fee_single(
BroadcastedTransaction::Invoke(BroadcastedInvokeTransaction::V1(invoke)),
if skip_signature {
// Validation would fail since real signature was not requested
vec![SimulationFlagForEstimateFee::SkipValidate]
} else {
// With the correct signature in place, run validation for accurate results
vec![]
},
self.account.block_id(),
)
.await
.map_err(AccountError::Provider)
}
async fn simulate_with_nonce(
&self,
nonce: Felt,
skip_validate: bool,
skip_fee_charge: bool,
) -> Result<SimulatedTransaction, AccountError<A::SignError>> {
let skip_signature = if self
.account
.is_signer_interactive(SignerInteractivityContext::Execution { calls: &self.calls })
{
// If signer is interactive, we would try to minimize signing requests. However, if the
// caller has decided to not skip validation, it's best we still request a real
// signature, as otherwise the simulation would most likely fail.
skip_validate
} else {
// Signing with non-interactive signers is cheap so always request signatures.
false
};
let prepared = PreparedExecutionV1 {
account: self.account,
inner: RawExecutionV1 {
calls: self.calls.clone(),
nonce,
max_fee: self.max_fee.unwrap_or_default(),
},
};
let invoke = prepared
.get_invoke_request(true, skip_signature)
.await
.map_err(AccountError::Signing)?;
let mut flags = vec![];
if skip_validate {
flags.push(SimulationFlag::SkipValidate);
}
if skip_fee_charge {
flags.push(SimulationFlag::SkipFeeCharge);
}
self.account
.provider()
.simulate_transaction(
self.account.block_id(),
BroadcastedTransaction::Invoke(BroadcastedInvokeTransaction::V1(invoke)),
&flags,
)
.await
.map_err(AccountError::Provider)
}
}
impl<'a, A> ExecutionV3<'a, A>
where
A: ConnectedAccount + Sync,
{
/// Estimates transaction fees from a [`Provider`].
pub async fn estimate_fee(&self) -> Result<FeeEstimate, AccountError<A::SignError>> {
// Resolves nonce
let nonce = match self.nonce {
Some(value) => value,
None => self
.account
.get_nonce()
.await
.map_err(AccountError::Provider)?,
};
self.estimate_fee_with_nonce(nonce).await
}
/// Simulates the transaction from a [`Provider`]. Transaction validation and fee transfer can
/// be skipped.
pub async fn simulate(
&self,
skip_validate: bool,
skip_fee_charge: bool,
) -> Result<SimulatedTransaction, AccountError<A::SignError>> {
// Resolves nonce
let nonce = match self.nonce {
Some(value) => value,
None => self
.account
.get_nonce()
.await
.map_err(AccountError::Provider)?,
};
self.simulate_with_nonce(nonce, skip_validate, skip_fee_charge)
.await
}
/// Signs and broadcasts the transaction to the network.
pub async fn send(&self) -> Result<InvokeTransactionResult, AccountError<A::SignError>> {
self.prepare().await?.send().await
}
async fn prepare(&self) -> Result<PreparedExecutionV3<'a, A>, AccountError<A::SignError>> {
// Resolves nonce
let nonce = match self.nonce {
Some(value) => value,
None => self
.account
.get_nonce()
.await
.map_err(AccountError::Provider)?,
};
// Resolves fee settings
let (gas, gas_price) = match (self.gas, self.gas_price) {
(Some(gas), Some(gas_price)) => (gas, gas_price),
(Some(gas), _) => {
// When `gas` is specified, we only need the L1 gas price in FRI. By specifying a
// a `gas` value, the user might be trying to avoid a full fee estimation (e.g.
// flaky dependencies), so it's in appropriate to call `estimate_fee` here.
// This is the lightest-weight block we can get
let block_l1_gas_price = self
.account
.provider()
.get_block_with_tx_hashes(self.account.block_id())
.await
.map_err(AccountError::Provider)?
.l1_gas_price()
.price_in_fri;
let block_l1_gas_price_bytes = block_l1_gas_price.to_bytes_le();
if block_l1_gas_price_bytes.iter().skip(8).any(|&x| x != 0) {
return Err(AccountError::FeeOutOfRange);
}
let block_l1_gas_price =
u64::from_le_bytes(block_l1_gas_price_bytes[..8].try_into().unwrap());
let gas_price =
((block_l1_gas_price as f64) * self.gas_price_estimate_multiplier) as u128;
(gas, gas_price)
}
// We have to perform fee estimation as long as gas is not specified
_ => {
let fee_estimate = self.estimate_fee_with_nonce(nonce).await?;
let gas = match self.gas {
Some(gas) => gas,
None => {
let overall_fee_bytes = fee_estimate.overall_fee.to_bytes_le();
if overall_fee_bytes.iter().skip(8).any(|&x| x != 0) {
return Err(AccountError::FeeOutOfRange);
}
let overall_fee =
u64::from_le_bytes(overall_fee_bytes[..8].try_into().unwrap());
let gas_price_bytes = fee_estimate.gas_price.to_bytes_le();
if gas_price_bytes.iter().skip(8).any(|&x| x != 0) {
return Err(AccountError::FeeOutOfRange);
}
let gas_price =
u64::from_le_bytes(gas_price_bytes[..8].try_into().unwrap());
((((overall_fee + gas_price - 1) / gas_price) as f64)
* self.gas_estimate_multiplier) as u64
}
};
let gas_price = match self.gas_price {
Some(gas_price) => gas_price,
None => {
let gas_price_bytes = fee_estimate.gas_price.to_bytes_le();
if gas_price_bytes.iter().skip(8).any(|&x| x != 0) {
return Err(AccountError::FeeOutOfRange);
}
let gas_price =
u64::from_le_bytes(gas_price_bytes[..8].try_into().unwrap());
((gas_price as f64) * self.gas_price_estimate_multiplier) as u128
}
};
(gas, gas_price)
}
};
Ok(PreparedExecutionV3 {
account: self.account,
inner: RawExecutionV3 {
calls: self.calls.clone(),
nonce,
gas,
gas_price,
},
})
}
async fn estimate_fee_with_nonce(
&self,
nonce: Felt,
) -> Result<FeeEstimate, AccountError<A::SignError>> {
let skip_signature = self
.account
.is_signer_interactive(SignerInteractivityContext::Execution { calls: &self.calls });
let prepared = PreparedExecutionV3 {
account: self.account,
inner: RawExecutionV3 {
calls: self.calls.clone(),
nonce,
gas: 0,
gas_price: 0,
},
};
let invoke = prepared
.get_invoke_request(true, skip_signature)
.await
.map_err(AccountError::Signing)?;
self.account
.provider()
.estimate_fee_single(
BroadcastedTransaction::Invoke(BroadcastedInvokeTransaction::V3(invoke)),
if skip_signature {
// Validation would fail since real signature was not requested
vec![SimulationFlagForEstimateFee::SkipValidate]
} else {
// With the correct signature in place, run validation for accurate results
vec![]
},
self.account.block_id(),
)
.await
.map_err(AccountError::Provider)
}
async fn simulate_with_nonce(
&self,
nonce: Felt,
skip_validate: bool,
skip_fee_charge: bool,
) -> Result<SimulatedTransaction, AccountError<A::SignError>> {
let skip_signature = if self
.account
.is_signer_interactive(SignerInteractivityContext::Execution { calls: &self.calls })
{
// If signer is interactive, we would try to minimize signing requests. However, if the
// caller has decided to not skip validation, it's best we still request a real
// signature, as otherwise the simulation would most likely fail.
skip_validate
} else {
// Signing with non-interactive signers is cheap so always request signatures.
false
};
let prepared = PreparedExecutionV3 {
account: self.account,
inner: RawExecutionV3 {
calls: self.calls.clone(),
nonce,
gas: self.gas.unwrap_or_default(),
gas_price: self.gas_price.unwrap_or_default(),
},
};
let invoke = prepared
.get_invoke_request(true, skip_signature)
.await
.map_err(AccountError::Signing)?;
let mut flags = vec![];
if skip_validate {
flags.push(SimulationFlag::SkipValidate);
}
if skip_fee_charge {
flags.push(SimulationFlag::SkipFeeCharge);
}
self.account
.provider()
.simulate_transaction(
self.account.block_id(),
BroadcastedTransaction::Invoke(BroadcastedInvokeTransaction::V3(invoke)),
&flags,
)
.await
.map_err(AccountError::Provider)
}
}
impl RawExecutionV1 {
/// Calculates transaction hash given `chain_id`, `address`, `query_only`, and `encoder`.
pub fn transaction_hash<E>(
&self,
chain_id: Felt,
address: Felt,
query_only: bool,
encoder: E,
) -> Felt
where
E: ExecutionEncoder,
{
compute_hash_on_elements(&[
PREFIX_INVOKE,
if query_only {
QUERY_VERSION_ONE
} else {
Felt::ONE
}, // version
address,
Felt::ZERO, // entry_point_selector
compute_hash_on_elements(&encoder.encode_calls(&self.calls)),
self.max_fee,
chain_id,
self.nonce,
])
}
/// Gets a reference to the list of contract calls included in the execution.
pub fn calls(&self) -> &[Call] {
&self.calls
}
/// Gets the `nonce` of the execution request.
pub const fn nonce(&self) -> Felt {
self.nonce
}
/// Gets the `max_fee` of the execution request.
pub const fn max_fee(&self) -> Felt {
self.max_fee
}
}
impl RawExecutionV3 {
/// Calculates transaction hash given `chain_id`, `address`, `query_only`, and `encoder`.
pub fn transaction_hash<E>(
&self,
chain_id: Felt,
address: Felt,
query_only: bool,
encoder: E,
) -> Felt
where
E: ExecutionEncoder,
{
let mut hasher = PoseidonHasher::new();
hasher.update(PREFIX_INVOKE);
hasher.update(if query_only {
QUERY_VERSION_THREE
} else {
Felt::THREE
});
hasher.update(address);
hasher.update({
let mut fee_hasher = PoseidonHasher::new();
// Tip: fee market has not been been activated yet so it's hard-coded to be 0
fee_hasher.update(Felt::ZERO);
let mut resource_buffer = [
0, 0, b'L', b'1', b'_', b'G', b'A', b'S', 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
];
resource_buffer[8..(8 + 8)].copy_from_slice(&self.gas.to_be_bytes());
resource_buffer[(8 + 8)..].copy_from_slice(&self.gas_price.to_be_bytes());
fee_hasher.update(Felt::from_bytes_be(&resource_buffer));
// L2 resources are hard-coded to 0
let resource_buffer = [
0, 0, b'L', b'2', b'_', b'G', b'A', b'S', 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
];
fee_hasher.update(Felt::from_bytes_be(&resource_buffer));
fee_hasher.finalize()
});
// Hard-coded empty `paymaster_data`
hasher.update(PoseidonHasher::new().finalize());
hasher.update(chain_id);
hasher.update(self.nonce);
// Hard-coded L1 DA mode for nonce and fee
hasher.update(Felt::ZERO);
// Hard-coded empty `account_deployment_data`
hasher.update(PoseidonHasher::new().finalize());
hasher.update({
let mut calldata_hasher = PoseidonHasher::new();
encoder
.encode_calls(&self.calls)
.into_iter()
.for_each(|element| calldata_hasher.update(element));
calldata_hasher.finalize()
});
hasher.finalize()
}
/// Gets a reference to the list of contract calls included in the execution.
pub fn calls(&self) -> &[Call] {
&self.calls
}
/// Gets the `nonce` of the execution request.
pub const fn nonce(&self) -> Felt {
self.nonce
}
/// Gets the `gas` of the execution request.
pub const fn gas(&self) -> u64 {
self.gas
}
/// Gets the `gas_price` of the execution request.
pub const fn gas_price(&self) -> u128 {
self.gas_price
}
}
impl<'a, A> PreparedExecutionV1<'a, A>
where
A: Account,
{
/// Locally calculates the hash of the transaction to be sent from this execution given the
/// parameters.
pub fn transaction_hash(&self, query_only: bool) -> Felt {
self.inner.transaction_hash(
self.account.chain_id(),
self.account.address(),
query_only,
self.account,
)
}
}
impl<'a, A> PreparedExecutionV3<'a, A>
where
A: Account,
{
/// Locally calculates the hash of the transaction to be sent from this execution given the
/// parameters.
pub fn transaction_hash(&self, query_only: bool) -> Felt {
self.inner.transaction_hash(
self.account.chain_id(),
self.account.address(),
query_only,
self.account,
)
}
}
impl<'a, A> PreparedExecutionV1<'a, A>
where
A: ConnectedAccount,
{
/// Signs and broadcasts the transaction to the network.
pub async fn send(&self) -> Result<InvokeTransactionResult, AccountError<A::SignError>> {
let tx_request = self
.get_invoke_request(false, false)
.await
.map_err(AccountError::Signing)?;
self.account
.provider()
.add_invoke_transaction(BroadcastedInvokeTransaction::V1(tx_request))
.await
.map_err(AccountError::Provider)
}
// The `simulate` function is temporarily removed until it's supported in [Provider]
// TODO: add `simulate` back once transaction simulation in supported
async fn get_invoke_request(
&self,
query_only: bool,
skip_signature: bool,
) -> Result<BroadcastedInvokeTransactionV1, A::SignError> {
Ok(BroadcastedInvokeTransactionV1 {
max_fee: self.inner.max_fee,
signature: if skip_signature {
vec![]
} else {
self.account
.sign_execution_v1(&self.inner, query_only)
.await?
},
nonce: self.inner.nonce,
sender_address: self.account.address(),
calldata: self.account.encode_calls(&self.inner.calls),
is_query: query_only,
})
}
}
impl<'a, A> PreparedExecutionV3<'a, A>
where
A: ConnectedAccount,
{
/// Signs and broadcasts the transaction to the network.
pub async fn send(&self) -> Result<InvokeTransactionResult, AccountError<A::SignError>> {
let tx_request = self
.get_invoke_request(false, false)
.await
.map_err(AccountError::Signing)?;
self.account
.provider()
.add_invoke_transaction(BroadcastedInvokeTransaction::V3(tx_request))
.await
.map_err(AccountError::Provider)
}
// The `simulate` function is temporarily removed until it's supported in [Provider]
// TODO: add `simulate` back once transaction simulation in supported
async fn get_invoke_request(
&self,
query_only: bool,
skip_signature: bool,
) -> Result<BroadcastedInvokeTransactionV3, A::SignError> {
Ok(BroadcastedInvokeTransactionV3 {
sender_address: self.account.address(),
calldata: self.account.encode_calls(&self.inner.calls),
signature: if skip_signature {
vec![]
} else {
self.account
.sign_execution_v3(&self.inner, query_only)
.await?
},
nonce: self.inner.nonce,
resource_bounds: ResourceBoundsMapping {
l1_gas: ResourceBounds {
max_amount: self.inner.gas,
max_price_per_unit: self.inner.gas_price,
},
// L2 resources are hard-coded to 0
l2_gas: ResourceBounds {
max_amount: 0,
max_price_per_unit: 0,
},
},
// Fee market has not been been activated yet so it's hard-coded to be 0
tip: 0,
// Hard-coded empty `paymaster_data`
paymaster_data: vec![],
// Hard-coded empty `account_deployment_data`
account_deployment_data: vec![],
// Hard-coded L1 DA mode for nonce and fee
nonce_data_availability_mode: DataAvailabilityMode::L1,
fee_data_availability_mode: DataAvailabilityMode::L1,
is_query: query_only,
})
}
}