@unruggable/gateways
Version:
Trustless Ethereum Multichain CCIP-Read Gateway
102 lines (101 loc) • 5.25 kB
JavaScript
import { AbstractRollup, } from '../rollup.mjs';
import { Contract, EventLog } from 'ethers/contract';
import { LineaProver } from './LineaProver.mjs';
import { ROLLUP_ABI } from './types.mjs';
import { CHAINS } from '../chains.mjs';
import { ABI_CODER } from '../utils.mjs';
export class LineaRollup extends AbstractRollup {
// https://docs.linea.build/developers/quickstart/info-contracts
static mainnetConfig = {
chain1: CHAINS.MAINNET,
chain2: CHAINS.LINEA,
L1MessageService: '0xd19d4B5d358258f05D7B411E21A1460D11B0876F',
// https://github.com/Consensys/linea-ens/blob/main/packages/linea-ens-resolver/deployments/mainnet/SparseMerkleProof.json
SparseMerkleProof: '0xBf8C454Af2f08fDD90bB7B029b0C2c07c2a7b4A3',
// deploy: https://etherscan.io/tx/0x9ec6d0ac71da8691a84352a38be79dcee841d9440ce536452ad50cd380bd31b1
// commit: https://etherscan.io/tx/0xc6b2c65a7b69276e191d11802d5cda28d8feb4736afd7d47695b9cd9ea3ceb81
firstCommitV3: 13377143n,
};
static sepoliaConfig = {
chain1: CHAINS.SEPOLIA,
chain2: CHAINS.LINEA_SEPOLIA,
L1MessageService: '0xB218f8A4Bc926cF1cA7b3423c154a0D627Bdb7E5',
// https://github.com/Consensys/linea-ens/blob/main/packages/linea-ens-resolver/deployments/sepolia/SparseMerkleProof.json
SparseMerkleProof: '0x718D20736A637CDB15b6B586D8f1BF081080837f',
// deploy: https://sepolia.etherscan.io/tx/0x5a59e374a18369aa624fbc5afa77864aec1a1e19f38769c18d55318937f79356
// commit: https://sepolia.etherscan.io/tx/0xa2a4a0cf7205e7dc6eac8cdef5a7fd1cb750dac25539e6886e76f76278c27893
firstCommitV3: 6391917n,
};
firstCommitV3;
L1MessageService;
shomeiTimeout = 30000;
constructor(providers, config) {
super(providers);
this.L1MessageService = new Contract(config.L1MessageService, ROLLUP_ABI, this.provider1);
this.firstCommitV3 = config.firstCommitV3;
}
async fetchLatestCommitIndex() {
// 20241112: BLOCK_MISSING_IN_CHAIN
// https://github.com/Consensys/shomei/issues/98
// https://github.com/Consensys/shomei/issues/104
const index = await this.L1MessageService.currentL2BlockNumber({
blockTag: this.latestBlockTag,
});
const timeout = Date.now() + this.shomeiTimeout;
let commit = await this.fetchCommit(index);
for (;;) {
if (await commit.prover.isShomeiReady())
return commit.index;
if (Date.now() > timeout)
throw new Error(`timeout isShomeiReady()`);
commit = await this.fetchParentCommit(commit);
}
}
async _fetchParentCommitIndex(commit) {
if (commit.startIndex)
return commit.startIndex - 1n;
const [event] = await this.L1MessageService.queryFilter(this.L1MessageService.filters.DataFinalized(null, null, commit.prevStateRoot));
if (!(event instanceof EventLog)) {
throw new Error('no prior DataFinalized event');
}
return BigInt(event.args.lastBlockFinalized);
}
async _fetchCommit(index) {
let prevStateRoot;
let stateRoot;
let startIndex;
if (this.firstCommitV3 && index >= this.firstCommitV3) {
const [event] = await this.L1MessageService.queryFilter(this.L1MessageService.filters.DataFinalizedV3(null, index));
if (!(event instanceof EventLog)) {
throw new Error('no DataFinalizedV3 event');
}
startIndex = event.args.startBlockNumber;
prevStateRoot = event.args.parentStateRootHash;
stateRoot = event.args.finalStateRootHash;
}
else {
const [event] = await this.L1MessageService.queryFilter(this.L1MessageService.filters.DataFinalized(index));
if (!(event instanceof EventLog)) {
throw new Error('no DataFinalized event');
}
prevStateRoot = event.args.startingRootHash;
stateRoot = event.args.finalRootHash;
}
const prover = new LineaProver(this.provider2, index);
prover.stateRoot = stateRoot;
return { index, startIndex, stateRoot, prevStateRoot, prover };
}
encodeWitness(commit, proofSeq) {
return ABI_CODER.encode(['(uint256, bytes[], bytes)'], [[commit.index, proofSeq.proofs, proofSeq.order]]);
}
windowFromSec(sec) {
// finalization time is not on-chain
// https://docs.linea.build/developers/guides/bridge/how-to-bridge-eth#bridge-eth-from-linea-mainnet-l2-to-ethereum-mainnet-l1
// "Reminder: It takes at least 8 hours for the transaction to go through from L2 to L1."
// 20240815: heuristic based on mainnet data
// https://etherscan.io/advanced-filter?tadd=0x1335f1a2b3ff25f07f5fef07dd35d8fb4312c3c73b138e2fad9347b3319ab53c&ps=25&eladd=0xd19d4B5d358258f05D7B411E21A1460D11B0876F&eltpc=0x1335f1a2b3ff25f07f5fef07dd35d8fb4312c3c73b138e2fad9347b3319ab53c
const blocksPerCommit = 5000; // every 2000-8000+ L2 blocks
const secPerCommit = 2 * 3600; // every ~2 hours
return blocksPerCommit * Math.ceil(sec / secPerCommit); // units of commit
}
}