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Generate beefy checkpoint from runtime storage #1197

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Generate beefy checkpoint from runtime storage #1197

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b779f74
Filter out bad keys
yrong May 13, 2024
238a8fc
Get AuthoritySet from storage
yrong May 13, 2024
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56 changes: 36 additions & 20 deletions web/packages/test-helpers/src/generateBeefyCheckpoint.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -2,20 +2,17 @@ import { ApiPromise, WsProvider } from "@polkadot/api"
import { MerkleTree } from "merkletreejs"
import createKeccakHash from "keccak"
import { publicKeyConvert } from "secp256k1"
import type {
ValidatorSetId,
BeefyId,
} from "@polkadot/types/interfaces/beefy/types"
import type { ValidatorSetId, BeefyId } from "@polkadot/types/interfaces/beefy/types"
import fs from "fs"
import path from "path"
import { u32, u64 } from "@polkadot/types-codec";
import { H256 } from "@polkadot/types/interfaces";
import { Struct } from "@polkadot/types";

interface NextAuthoritySet extends Struct {
id: u64;
len: u32;
keysetCommitment: H256;
import { u32, u64 } from "@polkadot/types-codec"
import { H256 } from "@polkadot/types/interfaces"
import { Struct } from "@polkadot/types"

interface AuthoritySet extends Struct {
id: u64
len: u32
keysetCommitment: H256
}

async function generateBeefyCheckpoint() {
Expand Down Expand Up @@ -50,23 +47,42 @@ async function generateBeefyCheckpoint() {
const validatorSetId = await api.query.beefy.validatorSetId<ValidatorSetId>()
const authorities = await api.query.beefy.authorities<BeefyId[]>()

console.log("validatorSetId:", validatorSetId)
console.log("authority length is:" + authorities.length)

let addrs = []

for (let i = 0; i < authorities.length; i++) {
let publicKey = publicKeyConvert(authorities[i], false).slice(1)
let publicKeyHashed = createKeccakHash("keccak256").update(Buffer.from(publicKey)).digest()
addrs.push(publicKeyHashed.slice(12))
console.log("index is:" + i + ",authority is:" + authorities[i])
try {
let publicKey = publicKeyConvert(authorities[i], false).slice(1)
let publicKeyHashed = createKeccakHash("keccak256")
.update(Buffer.from(publicKey))
.digest()
addrs.push(publicKeyHashed.slice(12))
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Wont this change the length of the list of validator addresses, which in turn will affect the merkle tree and eventual root? If the same logic is applied in the relayer then I think its fine.

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As the title mentioned, we don't manually construct the merkle root from the addresses as before, instead get currentAuthorities from runtime storage. The printing here is only for debug purpose.

} catch (err) {
console.log(err)
}
}

const tree = createMerkleTree(addrs)
console.log("valid authority length is:" + addrs.length)

const nextAuthorities = await api.query.mmrLeaf.beefyNextAuthorities<NextAuthoritySet>()
let currentAuthorities, nextAuthorities

if (process.env.NODE_ENV == "production") {
currentAuthorities = await api.query.beefyMmrLeaf.beefyAuthorities<AuthoritySet>()
nextAuthorities = await api.query.beefyMmrLeaf.beefyNextAuthorities<AuthoritySet>()
} else {
currentAuthorities = await api.query.mmrLeaf.beefyAuthorities<AuthoritySet>()
nextAuthorities = await api.query.mmrLeaf.beefyNextAuthorities<AuthoritySet>()
}

const beefyCheckpoint = {
startBlock: beefyStartBlock,
current: {
id: validatorSetId.toNumber(),
root: tree.getHexRoot(),
length: addrs.length,
id: currentAuthorities.id.toNumber(),
root: currentAuthorities.keysetCommitment.toHex(),
length: currentAuthorities.len.toNumber(),
},
next: {
id: nextAuthorities.id.toNumber(),
Expand Down