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| 1 | +import { STANDBY_GUARDIANS } from '@wormhole-foundation/wormhole-monitor-common'; |
| 2 | +import { Firestore } from 'firebase-admin/firestore'; |
| 3 | + |
| 4 | +// TODO: pulled from getLastHeartbeats.ts, could be shared. |
| 5 | +interface Heartbeat { |
| 6 | + nodeName: string; |
| 7 | + counter: string; |
| 8 | + timestamp: string; |
| 9 | + networks: HeartbeatNetwork[]; |
| 10 | + version: string; |
| 11 | + guardianAddr: string; |
| 12 | + bootTimestamp: string; |
| 13 | + features: string[]; |
| 14 | + p2pNodeAddr?: string; |
| 15 | +} |
| 16 | + |
| 17 | +interface HeartbeatNetwork { |
| 18 | + id: number; |
| 19 | + height: string; |
| 20 | + contractAddress: string; |
| 21 | + errorCount: string; |
| 22 | + safeHeight: string; |
| 23 | + finalizedHeight: string; |
| 24 | +} |
| 25 | + |
| 26 | +const isTestnet = process.env.NETWORK === 'TESTNET'; |
| 27 | + |
| 28 | +export function getQuorumCount(numGuardians: number): number { |
| 29 | + return isTestnet ? 1 : Math.floor((numGuardians * 2) / 3 + 1); |
| 30 | +} |
| 31 | + |
| 32 | +async function getHeartbeats_() { |
| 33 | + const heartbeats: Heartbeat[] = []; |
| 34 | + const firestoreDb = new Firestore(); |
| 35 | + try { |
| 36 | + const collectionRef = firestoreDb.collection('heartbeats'); |
| 37 | + const snapshot = await collectionRef.get(); |
| 38 | + snapshot.docs.forEach((doc) => { |
| 39 | + heartbeats.push(doc.data() as Heartbeat); |
| 40 | + }); |
| 41 | + } catch (e) { |
| 42 | + console.error(e); |
| 43 | + } |
| 44 | + return heartbeats; |
| 45 | +} |
| 46 | + |
| 47 | +let cache = { heartbeats: [] as Heartbeat[], lastUpdated: Date.now() }; |
| 48 | +// default refresh interval = 15 sec |
| 49 | +const REFRESH_TIME_INTERVAL = |
| 50 | + Number(process.env.CLOUD_FUNCTIONS_REFRESH_TIME_INTERVAL) || 1000 * 15; |
| 51 | + |
| 52 | +export async function getQuorumHeight(req: any, res: any) { |
| 53 | + res.set('Access-Control-Allow-Origin', '*'); |
| 54 | + if (req.method === 'OPTIONS') { |
| 55 | + // Send response to OPTIONS requests |
| 56 | + res.set('Access-Control-Allow-Methods', 'GET'); |
| 57 | + res.set('Access-Control-Allow-Headers', 'Content-Type'); |
| 58 | + res.set('Access-Control-Max-Age', '3600'); |
| 59 | + res.status(204).send(''); |
| 60 | + return; |
| 61 | + } |
| 62 | + const { chainId: chainIdStr } = req.query; |
| 63 | + const chainId = Number(chainIdStr); |
| 64 | + if (Number.isNaN(chainId)) { |
| 65 | + res.status(400).send(`Invalid chainId`); |
| 66 | + return; |
| 67 | + } |
| 68 | + let heartbeats: Heartbeat[] = []; |
| 69 | + try { |
| 70 | + if (cache.heartbeats.length === 0 || Date.now() - cache.lastUpdated > REFRESH_TIME_INTERVAL) { |
| 71 | + if (cache.heartbeats.length === 0) { |
| 72 | + console.log(`cache is empty, setting cache.heartbeats ${new Date()}`); |
| 73 | + } else { |
| 74 | + console.log(`cache is older than ${REFRESH_TIME_INTERVAL} ms, refreshing ${new Date()}`); |
| 75 | + } |
| 76 | + let prevDate = Date.now(); |
| 77 | + heartbeats = await getHeartbeats_(); |
| 78 | + let timeDiff = Date.now() - prevDate; |
| 79 | + console.log('After getHeartbeats_=', timeDiff); |
| 80 | + cache.heartbeats = heartbeats; |
| 81 | + cache.lastUpdated = Date.now(); |
| 82 | + } else { |
| 83 | + console.log(`cache is still valid, not refreshing ${new Date()}`); |
| 84 | + heartbeats = cache.heartbeats; |
| 85 | + } |
| 86 | + if (heartbeats.length) { |
| 87 | + const latestHeights: bigint[] = []; |
| 88 | + const safeHeights: bigint[] = []; |
| 89 | + const finalizedHeights: bigint[] = []; |
| 90 | + for (const heartbeat of heartbeats) { |
| 91 | + // filter out standby guardians |
| 92 | + if ( |
| 93 | + !STANDBY_GUARDIANS.find( |
| 94 | + (g) => g.pubkey.toLowerCase() === heartbeat.guardianAddr.toLowerCase() |
| 95 | + ) |
| 96 | + ) { |
| 97 | + const network = heartbeat.networks.find((n) => n.id === chainId); |
| 98 | + latestHeights.push(BigInt(network?.height || '0')); |
| 99 | + safeHeights.push(BigInt(network?.safeHeight || '0')); |
| 100 | + finalizedHeights.push(BigInt(network?.finalizedHeight || '0')); |
| 101 | + } |
| 102 | + } |
| 103 | + latestHeights.sort((a, b) => (a > b ? -1 : a < b ? 1 : 0)); |
| 104 | + safeHeights.sort((a, b) => (a > b ? -1 : a < b ? 1 : 0)); |
| 105 | + finalizedHeights.sort((a, b) => (a > b ? -1 : a < b ? 1 : 0)); |
| 106 | + const quorumIdx = getQuorumCount(latestHeights.length) - 1; |
| 107 | + res.status(200).send( |
| 108 | + JSON.stringify({ |
| 109 | + latest: latestHeights[quorumIdx].toString(), |
| 110 | + safe: safeHeights[quorumIdx].toString(), |
| 111 | + finalized: finalizedHeights[quorumIdx].toString(), |
| 112 | + }) |
| 113 | + ); |
| 114 | + } else { |
| 115 | + console.log('no heartbeats'); |
| 116 | + res.sendStatus(500); |
| 117 | + } |
| 118 | + } catch (e) { |
| 119 | + console.log(e); |
| 120 | + res.sendStatus(500); |
| 121 | + } |
| 122 | +} |
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