mirror of
https://github.com/pezkuwichain/pezkuwi-subxt.git
synced 2026-05-30 23:21:02 +00:00
Vladislav
5842968273
* Unify error enums in substrate and ethereum clients with `thiserror` Related to https://github.com/paritytech/parity-bridges-common/issues/857 * Add license pre-amble * rustfmt * Fix spelling
111 lines
3.4 KiB
Rust
111 lines
3.4 KiB
Rust
// Copyright 2019-2021 Parity Technologies (UK) Ltd.
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// This file is part of Parity Bridges Common.
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// Parity Bridges Common is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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// Parity Bridges Common is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License
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// along with Parity Bridges Common. If not, see <http://www.gnu.org/licenses/>.
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//! Submitting Ethereum -> Substrate exchange transactions.
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use anyhow::anyhow;
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use bp_eth_poa::{
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signatures::{secret_to_address, SignTransaction},
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UnsignedTransaction,
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};
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use relay_ethereum_client::{
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types::{CallRequest, U256},
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Client as EthereumClient, ConnectionParams as EthereumConnectionParams,
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SigningParams as EthereumSigningParams,
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};
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use rialto_runtime::exchange::LOCK_FUNDS_ADDRESS;
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/// Ethereum exchange transaction params.
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#[derive(Debug)]
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pub struct EthereumExchangeSubmitParams {
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/// Ethereum connection params.
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pub eth_params: EthereumConnectionParams,
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/// Ethereum signing params.
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pub eth_sign: EthereumSigningParams,
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/// Ethereum signer nonce.
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pub eth_nonce: Option<U256>,
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/// Amount of Ethereum tokens to lock.
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pub eth_amount: U256,
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/// Funds recipient on Substrate side.
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pub sub_recipient: [u8; 32],
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}
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/// Submit single Ethereum -> Substrate exchange transaction.
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pub async fn run(params: EthereumExchangeSubmitParams) {
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let EthereumExchangeSubmitParams { eth_params, eth_sign, eth_nonce, eth_amount, sub_recipient } =
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params;
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let result: anyhow::Result<_> = async move {
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let eth_client = EthereumClient::try_connect(eth_params)
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.await
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.map_err(|err| anyhow!("error connecting to Ethereum node: {:?}", err))?;
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let eth_signer_address = secret_to_address(ð_sign.signer);
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let sub_recipient_encoded = sub_recipient;
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let nonce = match eth_nonce {
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Some(eth_nonce) => eth_nonce,
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None => eth_client
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.account_nonce(eth_signer_address)
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.await
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.map_err(|err| anyhow!("error fetching acount nonce: {:?}", err))?,
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};
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let gas = eth_client
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.estimate_gas(CallRequest {
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from: Some(eth_signer_address),
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to: Some(LOCK_FUNDS_ADDRESS.into()),
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value: Some(eth_amount),
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data: Some(sub_recipient_encoded.to_vec().into()),
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..Default::default()
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})
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.await
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.map_err(|err| anyhow!("error estimating gas requirements: {:?}", err))?;
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let eth_tx_unsigned = UnsignedTransaction {
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nonce,
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gas_price: eth_sign.gas_price,
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gas,
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to: Some(LOCK_FUNDS_ADDRESS.into()),
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value: eth_amount,
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payload: sub_recipient_encoded.to_vec(),
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};
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let eth_tx_signed =
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eth_tx_unsigned.clone().sign_by(ð_sign.signer, Some(eth_sign.chain_id));
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eth_client
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.submit_transaction(eth_tx_signed)
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.await
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.map_err(|err| anyhow!("error submitting transaction: {:?}", err))?;
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Ok(eth_tx_unsigned)
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}
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.await;
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match result {
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Ok(eth_tx_unsigned) => {
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log::info!(
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target: "bridge",
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"Exchange transaction has been submitted to Ethereum node: {:?}",
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eth_tx_unsigned,
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);
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},
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Err(err) => {
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log::error!(
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target: "bridge",
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"Error submitting exchange transaction to Ethereum node: {}",
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err,
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);
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},
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}
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}
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