Liquidity.Party/tycho-execution
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fix: Don't leak evm specific code to interfaces(PrivateKeySigner, Chain)

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Pass the signer's private key as a string around and only create a PrivateKeySigner inside Permit2 (where it's needed)
Use tycho-core Chain instead of Alloy ChainID. Create a temp method to convert between them
Create a EVMSwapEncoder that implements the executor_selector (that is evm specific)

--- don't change below this line ---
ENG-4081 Took 1 hour 7 minutes
This commit is contained in:
Diana Carvalho
2025-01-30 13:17:23 +00:00
parent feb91cc639
commit 7a8872cc41
8 changed files with 69 additions and 58 deletions
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35
src/encoding/evm/approvals/permit2.rs
View File

@@ -9,17 +9,18 @@ use alloy::{
};
#[allow(deprecated)]
use alloy_primitives::Signature;
use alloy_primitives::B256;
use alloy_sol_types::{eip712_domain, sol, SolStruct, SolValue};
use chrono::Utc;
use num_bigint::BigUint;
use tokio::runtime::Runtime;
use tycho_core::Bytes;
use tycho_core::{models::Chain, Bytes};
use crate::encoding::{
errors::EncodingError,
evm::{
approvals::protocol_approvals_manager::get_client,
utils::{biguint_to_u256, bytes_to_address, encode_input},
utils::{biguint_to_u256, bytes_to_address, encode_input, to_chain_id},
},
};
@@ -60,10 +61,17 @@ sol! {
#[allow(dead_code)]
impl Permit2 {
pub fn new(signer: PrivateKeySigner, chain_id: ChainId) -> Result<Self, EncodingError> {
pub fn new(signer_pk: String, chain: Chain) -> Result<Self, EncodingError> {
let chain_id = to_chain_id(chain)?;
let runtime = Runtime::new()
.map_err(|_| EncodingError::FatalError("Failed to create runtime".to_string()))?;
let client = runtime.block_on(get_client())?;
let pk = B256::from_str(&signer_pk).map_err(|_| {
EncodingError::FatalError("Failed to convert signer private key to B256".to_string())
})?;
let signer = PrivateKeySigner::from_bytes(&pk).map_err(|_| {
EncodingError::FatalError("Failed to create signer from private key".to_string())
})?;
Ok(Self {
address: Address::from_str("0x000000000022D473030F116dDEE9F6B43aC78BA3")
.map_err(|_| EncodingError::FatalError("Permit2 address not valid".to_string()))?,
@@ -158,7 +166,7 @@ impl Permit2 {
mod tests {
use std::str::FromStr;
use alloy_primitives::{Uint, B256};
use alloy_primitives::Uint;
use num_bigint::BigUint;
use super::*;
@@ -196,8 +204,9 @@ mod tests {
#[test]
fn test_get_existing_allowance() {
let signer = PrivateKeySigner::random();
let manager = Permit2::new(signer, 1).unwrap();
let signer_pk =
"4c0883a69102937d6231471b5dbb6204fe512961708279feb1be6ae5538da033".to_string();
let manager = Permit2::new(signer_pk, Chain::Ethereum).unwrap();
let token = Bytes::from_str("0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48").unwrap();
let owner = Bytes::from_str("0x2c6a3cd97c6283b95ac8c5a4459ebb0d5fd404f4").unwrap();
@@ -216,10 +225,8 @@ mod tests {
fn test_get_permit() {
// Set up a mock private key for signing
let private_key =
B256::from_str("4c0883a69102937d6231471b5dbb6204fe512961708279feb1be6ae5538da033")
.expect("Invalid private key");
let signer = PrivateKeySigner::from_bytes(&private_key).expect("Failed to create signer");
let permit2 = Permit2::new(signer, 1).expect("Failed to create Permit2");
"4c0883a69102937d6231471b5dbb6204fe512961708279feb1be6ae5538da033".to_string();
let permit2 = Permit2::new(private_key, Chain::Ethereum).expect("Failed to create Permit2");
let owner = Bytes::from_str("0x2c6a3cd97c6283b95ac8c5a4459ebb0d5fd404f4").unwrap();
let spender = Bytes::from_str("0xba12222222228d8ba445958a75a0704d566bf2c8").unwrap();
@@ -257,12 +264,10 @@ mod tests {
fn test_permit() {
let anvil_account = Bytes::from_str("0xf39Fd6e51aad88F6F4ce6aB8827279cffFb92266").unwrap();
let anvil_private_key =
B256::from_str("0xac0974bec39a17e36ba4a6b4d238ff944bacb478cbed5efcae784d7bf4f2ff80")
.unwrap();
"0xac0974bec39a17e36ba4a6b4d238ff944bacb478cbed5efcae784d7bf4f2ff80".to_string();
let signer =
PrivateKeySigner::from_bytes(&anvil_private_key).expect("Failed to create signer");
let permit2 = Permit2::new(signer, 1).expect("Failed to create Permit2");
let permit2 =
Permit2::new(anvil_private_key, Chain::Ethereum).expect("Failed to create Permit2");
let token = Bytes::from_str("0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48").unwrap();
let amount = BigUint::from(1000u64);

16
src/encoding/evm/router_encoder.rs
View File

@@ -1,9 +1,7 @@
use std::str::FromStr;
use alloy::signers::local::PrivateKeySigner;
use alloy_primitives::ChainId;
use num_bigint::BigUint;
use tycho_core::Bytes;
use tycho_core::{models::Chain, Bytes};
use crate::encoding::{
errors::EncodingError,
@@ -16,8 +14,8 @@ use crate::encoding::{
#[allow(dead_code)]
pub struct EVMRouterEncoder<S: StrategySelector> {
strategy_selector: S,
signer: Option<PrivateKeySigner>,
chain_id: ChainId,
signer: Option<String>,
chain: Chain,
router_address: String,
}
@@ -26,10 +24,10 @@ impl<S: StrategySelector> EVMRouterEncoder<S> {
pub fn new(
strategy_selector: S,
router_address: String,
signer: Option<PrivateKeySigner>,
chain_id: ChainId,
signer: Option<String>,
chain: Chain,
) -> Result<Self, EncodingError> {
Ok(EVMRouterEncoder { strategy_selector, signer, chain_id, router_address })
Ok(EVMRouterEncoder { strategy_selector, signer, chain, router_address })
}
}
impl<S: StrategySelector> RouterEncoder<S> for EVMRouterEncoder<S> {
@@ -50,7 +48,7 @@ impl<S: StrategySelector> RouterEncoder<S> for EVMRouterEncoder<S> {
let strategy = self.strategy_selector.select_strategy(
solution,
self.signer.clone(),
self.chain_id,
self.chain,
)?;
let method_calldata = strategy.encode_strategy(solution.clone(), router_address)?;

26
src/encoding/evm/strategy_encoder/encoder.rs
View File

@@ -1,10 +1,9 @@
use std::cmp::min;
use alloy::signers::local::PrivateKeySigner;
use alloy_primitives::{aliases::U24, map::HashSet, ChainId, U256, U8};
use alloy_primitives::{aliases::U24, map::HashSet, U256, U8};
use alloy_sol_types::SolValue;
use num_bigint::BigUint;
use tycho_core::Bytes;
use tycho_core::{models::Chain, Bytes};
use crate::encoding::{
errors::EncodingError,
@@ -40,8 +39,8 @@ pub struct SplitSwapStrategyEncoder {
}
impl SplitSwapStrategyEncoder {
pub fn new(signer: PrivateKeySigner, chain_id: ChainId) -> Result<Self, EncodingError> {
Ok(Self { permit2: Permit2::new(signer, chain_id)? })
pub fn new(signer_pk: String, chain: Chain) -> Result<Self, EncodingError> {
Ok(Self { permit2: Permit2::new(signer_pk, chain)? })
}
}
impl EVMStrategyEncoder for SplitSwapStrategyEncoder {}
@@ -72,7 +71,7 @@ impl StrategyEncoder for SplitSwapStrategyEncoder {
BigUint::ZERO
};
let tokens: Vec<Bytes> = solution
let mut tokens: Vec<Bytes> = solution
.swaps
.iter()
.flat_map(|swap| vec![swap.token_in.clone(), swap.token_out.clone()])
@@ -80,6 +79,10 @@ impl StrategyEncoder for SplitSwapStrategyEncoder {
.into_iter()
.collect();
// this is only to make the test deterministic (same index for the same token for different
// runs)
tokens.sort();
let mut swaps = vec![];
for swap in solution.swaps.iter() {
let registry = SWAP_ENCODER_REGISTRY.read().unwrap();
@@ -200,7 +203,6 @@ mod tests {
use std::str::FromStr;
use alloy::hex::encode;
use alloy_primitives::B256;
use tycho_core::dto::ProtocolComponent;
use super::*;
@@ -210,9 +212,7 @@ mod tests {
fn test_split_swap_strategy_encoder() {
// Set up a mock private key for signing
let private_key =
B256::from_str("4c0883a69102937d6231471b5dbb6204fe512961708279feb1be6ae5538da033")
.expect("Invalid private key");
let signer = PrivateKeySigner::from_bytes(&private_key).expect("Failed to create signer");
"4c0883a69102937d6231471b5dbb6204fe512961708279feb1be6ae5538da033".to_string();
let weth = Bytes::from_str("0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2").unwrap();
let dai = Bytes::from_str("0x6b175474e89094c44da98b954eedeac495271d0f").unwrap();
@@ -228,7 +228,7 @@ mod tests {
split: 0f64,
};
let encoder = SplitSwapStrategyEncoder::new(signer, 1).unwrap();
let encoder = SplitSwapStrategyEncoder::new(private_key, Chain::Ethereum).unwrap();
let solution = Solution {
exact_out: false,
given_token: weth,
@@ -284,8 +284,8 @@ mod tests {
"0000000000000000000000000000000000000000000000000000000000000000",
"000000000000000000000000000000000000000000000000000000000005b",
// Swap header
"00", // token in index
"01", // token out index
"01", // token in index
"00", // token out index
"000000", // split
// Swap data
"5c2f5a71f67c01775180adc06909288b4c329308", // executor address

11
src/encoding/evm/strategy_encoder/selector.rs
View File

@@ -1,5 +1,4 @@
use alloy::signers::local::PrivateKeySigner;
use alloy_primitives::ChainId;
use tycho_core::models::Chain;
use crate::encoding::{
errors::EncodingError,
@@ -14,18 +13,18 @@ impl StrategySelector for EVMStrategySelector {
fn select_strategy(
&self,
solution: &Solution,
signer: Option<PrivateKeySigner>,
chain_id: ChainId,
signer: Option<String>,
chain: Chain,
) -> Result<Box<dyn StrategyEncoder>, EncodingError> {
if solution.straight_to_pool {
Ok(Box::new(StraightToPoolStrategyEncoder {}))
} else {
let signer = signer.ok_or_else(|| {
let signer_pk = signer.ok_or_else(|| {
EncodingError::FatalError(
"Signer is required for SplitSwapStrategyEncoder".to_string(),
)
})?;
Ok(Box::new(SplitSwapStrategyEncoder::new(signer, chain_id).unwrap()))
Ok(Box::new(SplitSwapStrategyEncoder::new(signer_pk, chain).unwrap()))
}
}
}

14
src/encoding/evm/swap_encoder/encoders.rs
View File

@@ -1,7 +1,8 @@
use std::str::FromStr;
use alloy_primitives::{Address, Bytes as AlloyBytes};
use alloy_primitives::{Address, Bytes as AlloyBytes, FixedBytes};
use alloy_sol_types::SolValue;
use tycho_core::keccak256;
use crate::encoding::{
errors::EncodingError,
@@ -12,10 +13,18 @@ use crate::encoding::{
swap_encoder::SwapEncoder,
};
pub trait EVMSwapEncoder: SwapEncoder {
fn executor_selector(&self) -> FixedBytes<4> {
let hash = keccak256("swap(uint256,bytes)".as_bytes());
FixedBytes::<4>::from([hash[0], hash[1], hash[2], hash[3]])
}
}
pub struct UniswapV2SwapEncoder {
executor_address: String,
}
impl EVMSwapEncoder for UniswapV2SwapEncoder {}
impl UniswapV2SwapEncoder {
fn get_zero_to_one(sell_token_address: Address, buy_token_address: Address) -> bool {
sell_token_address < buy_token_address
@@ -63,6 +72,7 @@ impl SwapEncoder for UniswapV2SwapEncoder {
pub struct UniswapV3SwapEncoder {
executor_address: String,
}
impl EVMSwapEncoder for UniswapV3SwapEncoder {}
impl UniswapV3SwapEncoder {
fn get_zero_to_one(sell_token_address: Address, buy_token_address: Address) -> bool {
@@ -135,6 +145,8 @@ pub struct BalancerV2SwapEncoder {
vault_address: String,
}
impl EVMSwapEncoder for BalancerV2SwapEncoder {}
impl SwapEncoder for BalancerV2SwapEncoder {
fn new(executor_address: String) -> Self {
Self {

9
src/encoding/evm/utils.rs
View File

@@ -1,7 +1,7 @@
use alloy_primitives::{aliases::U24, Address, Keccak256, U256};
use alloy_sol_types::SolValue;
use num_bigint::BigUint;
use tycho_core::Bytes;
use tycho_core::{models::Chain, Bytes};
use crate::encoding::errors::EncodingError;
@@ -65,3 +65,10 @@ pub fn percentage_to_uint24(percentage: f64) -> U24 {
let scaled = (percentage / 100.0) * (MAX_UINT24 as f64);
U24::from(scaled.round())
}
pub fn to_chain_id(chain: Chain) -> Result<u64, EncodingError> {
match chain {
Chain::Ethereum => Ok(1),
_ => Err(EncodingError::FatalError("Unsupported chain".to_string())),
}
}