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Set a fixed fee transferred to the caller for publication

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Avoids the risk of the gas used by the contract exceeding the gas presumed to
be used (causing an insolvency).
This commit is contained in:
Luke Parker
2024-09-20 00:20:05 -04:00
parent ec9211fd84
commit bc1bbf9951
5 changed files with 28 additions and 54 deletions
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25
processor/ethereum/src/primitives/transaction.rs
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@@ -18,7 +18,7 @@ use crate::{output::OutputId, machine::ClonableTransctionMachine};
#[derive(Clone, PartialEq, Debug)]
pub(crate) enum Action {
SetKey { chain_id: U256, nonce: u64, key: PublicKey },
Batch { chain_id: U256, nonce: u64, coin: Coin, fee_per_gas: U256, outs: Vec<(Address, U256)> },
Batch { chain_id: U256, nonce: u64, coin: Coin, fee: U256, outs: Vec<(Address, U256)> },
}
#[derive(Clone, PartialEq, Eq, Debug)]
@@ -36,11 +36,11 @@ impl Action {
Action::SetKey { chain_id, nonce, key } => {
Router::update_serai_key_message(*chain_id, *nonce, key)
}
Action::Batch { chain_id, nonce, coin, fee_per_gas, outs } => Router::execute_message(
Action::Batch { chain_id, nonce, coin, fee, outs } => Router::execute_message(
*chain_id,
*nonce,
*coin,
*fee_per_gas,
*fee,
OutInstructions::from(outs.as_ref()),
),
}
@@ -51,10 +51,9 @@ impl Action {
Self::SetKey { chain_id: _, nonce, key } => {
Executed::SetKey { nonce: *nonce, key: key.eth_repr() }
}
Self::Batch { nonce, .. } => Executed::Batch {
nonce: *nonce,
message_hash: keccak256(self.message()),
},
Self::Batch { nonce, .. } => {
Executed::Batch { nonce: *nonce, message_hash: keccak256(self.message()) }
}
})
}
}
@@ -106,9 +105,9 @@ impl SignableTransaction for Action {
1 => {
let coin = Coin::read(reader)?;
let mut fee_per_gas = [0; 32];
reader.read_exact(&mut fee_per_gas)?;
let fee_per_gas = U256::from_le_bytes(fee_per_gas);
let mut fee = [0; 32];
reader.read_exact(&mut fee)?;
let fee = U256::from_le_bytes(fee);
let mut outs_len = [0; 4];
reader.read_exact(&mut outs_len)?;
@@ -124,7 +123,7 @@ impl SignableTransaction for Action {
outs.push((address, amount));
}
Action::Batch { chain_id, nonce, coin, fee_per_gas, outs }
Action::Batch { chain_id, nonce, coin, fee, outs }
}
_ => unreachable!(),
})
@@ -137,12 +136,12 @@ impl SignableTransaction for Action {
writer.write_all(&nonce.to_le_bytes())?;
writer.write_all(&key.eth_repr())
}
Self::Batch { chain_id, nonce, coin, fee_per_gas, outs } => {
Self::Batch { chain_id, nonce, coin, fee, outs } => {
writer.write_all(&[1])?;
writer.write_all(&chain_id.as_le_bytes())?;
writer.write_all(&nonce.to_le_bytes())?;
coin.write(writer)?;
writer.write_all(&fee_per_gas.as_le_bytes())?;
writer.write_all(&fee.as_le_bytes())?;
writer.write_all(&u32::try_from(outs.len()).unwrap().to_le_bytes())?;
for (address, amount) in outs {
borsh::BorshSerialize::serialize(address, writer)?;