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event-server.ts
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import { inspect } from 'util';
import * as net from 'net';
import { createServer } from 'http';
import * as express from 'express';
import * as bodyParser from 'body-parser';
import { asyncHandler } from '../api/async-handler';
import PQueue from 'p-queue';
import * as prom from 'prom-client';
import {
BitVec,
ChainID,
assertNotNullish,
getChainIDNetwork,
getIbdBlockHeight,
} from '../helpers';
import {
CoreNodeBlockMessage,
CoreNodeEventType,
CoreNodeBurnBlockMessage,
CoreNodeDropMempoolTxMessage,
CoreNodeAttachmentMessage,
CoreNodeMicroblockMessage,
CoreNodeParsedTxMessage,
CoreNodeEvent,
} from './core-node-message';
import {
DbEventBase,
DbSmartContractEvent,
DbStxEvent,
DbEventTypeId,
DbFtEvent,
DbAssetEventTypeId,
DbNftEvent,
DbBlock,
DataStoreBlockUpdateData,
DbStxLockEvent,
DbMinerReward,
DbBurnchainReward,
DbRewardSlotHolder,
DataStoreMicroblockUpdateData,
DataStoreTxEventData,
DbMicroblock,
DataStoreAttachmentData,
DbPoxSyntheticEvent,
DbTxStatus,
DbBnsSubdomain,
DbPoxSetSigners,
} from '../datastore/common';
import {
getTxSenderAddress,
getTxSponsorAddress,
parseMessageTransaction,
CoreNodeMsgBlockData,
parseMicroblocksFromTxs,
isPoxPrintEvent,
newCoreNoreBlockEventCounts,
} from './reader';
import {
decodeTransaction,
decodeClarityValue,
ClarityValueBuffer,
ClarityValueStringAscii,
ClarityValueTuple,
TxPayloadTypeID,
} from 'stacks-encoding-native-js';
import { BnsContractIdentifier } from './bns/bns-constants';
import {
parseNameFromContractEvent,
parseNameRenewalWithNoZonefileHashFromContractCall,
parseNamespaceFromContractEvent,
parseZoneFileTxt,
parseResolver,
} from './bns/bns-helpers';
import { PgWriteStore } from '../datastore/pg-write-store';
import {
createDbMempoolTxFromCoreMsg,
createDbTxFromCoreMsg,
getTxDbStatus,
} from '../datastore/helpers';
import { handleBnsImport } from '../import-v1';
import { decodePoxSyntheticPrintEvent } from './pox-event-parsing';
import { logger, loggerMiddleware } from '../logger';
import * as zoneFileParser from 'zone-file';
import { hexToBuffer, isProdEnv, stopwatch } from '@hirosystems/api-toolkit';
import { POX_2_CONTRACT_NAME, POX_3_CONTRACT_NAME, POX_4_CONTRACT_NAME } from '../pox-helpers';
const IBD_PRUNABLE_ROUTES = ['/new_mempool_tx', '/drop_mempool_tx', '/new_microblocks'];
async function handleRawEventRequest(
eventPath: string,
payload: any,
db: PgWriteStore
): Promise<void> {
await db.storeRawEventRequest(eventPath, payload);
}
async function handleBurnBlockMessage(
burnBlockMsg: CoreNodeBurnBlockMessage,
db: PgWriteStore
): Promise<void> {
logger.debug(
`Received burn block message hash ${burnBlockMsg.burn_block_hash}, height: ${burnBlockMsg.burn_block_height}, reward recipients: ${burnBlockMsg.reward_recipients.length}`
);
const rewards = burnBlockMsg.reward_recipients.map((r, index) => {
const dbReward: DbBurnchainReward = {
canonical: true,
burn_block_hash: burnBlockMsg.burn_block_hash,
burn_block_height: burnBlockMsg.burn_block_height,
burn_amount: BigInt(burnBlockMsg.burn_amount),
reward_recipient: r.recipient,
reward_amount: BigInt(r.amt),
reward_index: index,
};
return dbReward;
});
const slotHolders = burnBlockMsg.reward_slot_holders.map((r, index) => {
const slotHolder: DbRewardSlotHolder = {
canonical: true,
burn_block_hash: burnBlockMsg.burn_block_hash,
burn_block_height: burnBlockMsg.burn_block_height,
address: r,
slot_index: index,
};
return slotHolder;
});
await db.updateBurnchainRewards({
burnchainBlockHash: burnBlockMsg.burn_block_hash,
burnchainBlockHeight: burnBlockMsg.burn_block_height,
rewards: rewards,
});
await db.updateBurnchainRewardSlotHolders({
burnchainBlockHash: burnBlockMsg.burn_block_hash,
burnchainBlockHeight: burnBlockMsg.burn_block_height,
slotHolders: slotHolders,
});
}
async function handleMempoolTxsMessage(rawTxs: string[], db: PgWriteStore): Promise<void> {
logger.debug(`Received ${rawTxs.length} mempool transactions`);
// TODO: mempool-tx receipt date should be sent from the core-node
const receiptDate = Math.round(Date.now() / 1000);
const decodedTxs = rawTxs.map(str => {
const parsedTx = decodeTransaction(str);
const txSender = getTxSenderAddress(parsedTx);
const sponsorAddress = getTxSponsorAddress(parsedTx);
return {
txId: parsedTx.tx_id,
sender: txSender,
sponsorAddress,
txData: parsedTx,
rawTx: str,
};
});
const dbMempoolTxs = decodedTxs.map(tx => {
logger.debug(`Received mempool tx: ${tx.txId}`);
const dbMempoolTx = createDbMempoolTxFromCoreMsg({
txId: tx.txId,
txData: tx.txData,
sender: tx.sender,
sponsorAddress: tx.sponsorAddress,
rawTx: tx.rawTx,
receiptDate: receiptDate,
});
return dbMempoolTx;
});
await db.updateMempoolTxs({ mempoolTxs: dbMempoolTxs });
}
async function handleDroppedMempoolTxsMessage(
msg: CoreNodeDropMempoolTxMessage,
db: PgWriteStore
): Promise<void> {
logger.debug(`Received ${msg.dropped_txids.length} dropped mempool txs`);
const dbTxStatus = getTxDbStatus(msg.reason);
await db.dropMempoolTxs({ status: dbTxStatus, txIds: msg.dropped_txids });
}
async function handleMicroblockMessage(
chainId: ChainID,
msg: CoreNodeMicroblockMessage,
db: PgWriteStore
): Promise<void> {
logger.debug(`Received microblock with ${msg.transactions.length} txs`);
const dbMicroblocks = parseMicroblocksFromTxs({
parentIndexBlockHash: msg.parent_index_block_hash,
txs: msg.transactions,
parentBurnBlock: {
height: msg.burn_block_height,
hash: msg.burn_block_hash,
time: msg.burn_block_timestamp,
},
});
const stacksBlockReceiptDate = Math.round(Date.now() / 1000);
const parsedTxs: CoreNodeParsedTxMessage[] = [];
msg.transactions.forEach(tx => {
const blockData: CoreNodeMsgBlockData = {
parent_index_block_hash: msg.parent_index_block_hash,
parent_burn_block_timestamp: msg.burn_block_timestamp,
parent_burn_block_height: msg.burn_block_height,
parent_burn_block_hash: msg.burn_block_hash,
// These properties aren't known until the next anchor block that accepts this microblock.
burn_block_time: -1,
burn_block_height: -1,
index_block_hash: '',
block_hash: '',
block_time: stacksBlockReceiptDate,
// These properties can be determined with a db query, they are set while the db is inserting them.
block_height: -1,
parent_block_hash: '',
};
const parsedTx = parseMessageTransaction(chainId, tx, blockData, msg.events);
if (parsedTx) {
parsedTxs.push(parsedTx);
}
});
parsedTxs.forEach(tx => {
logger.debug(`Received microblock mined tx: ${tx.core_tx.txid}`);
});
const updateData: DataStoreMicroblockUpdateData = {
microblocks: dbMicroblocks,
txs: parseDataStoreTxEventData(
parsedTxs,
msg.events,
{
block_height: -1, // TODO: fill during initial db insert
index_block_hash: '',
block_time: stacksBlockReceiptDate,
},
chainId
),
};
await db.updateMicroblocks(updateData);
}
async function handleBlockMessage(
chainId: ChainID,
msg: CoreNodeBlockMessage,
db: PgWriteStore
): Promise<void> {
const ingestionTimer = stopwatch();
const counts = newCoreNoreBlockEventCounts();
// If running in IBD mode, we use the parent burn block timestamp as the receipt date,
// otherwise, use the current timestamp.
const parsedTxs: CoreNodeParsedTxMessage[] = [];
const blockData: CoreNodeMsgBlockData = {
...msg,
};
if (!blockData.block_time) {
// TODO: if the core node can give use the stacks-block count/index for the current tenure/burn_block then we should
// increment this by that value so that timestampts increase monotonically.
const stacksBlockReceiptDate = db.isEventReplay
? msg.burn_block_time
: Math.round(Date.now() / 1000);
blockData.block_time = stacksBlockReceiptDate;
}
msg.transactions.forEach(item => {
const parsedTx = parseMessageTransaction(chainId, item, blockData, msg.events);
if (parsedTx) {
parsedTxs.push(parsedTx);
counts.tx_total += 1;
switch (parsedTx.parsed_tx.payload.type_id) {
case TxPayloadTypeID.Coinbase:
counts.txs.coinbase += 1;
break;
case TxPayloadTypeID.CoinbaseToAltRecipient:
counts.txs.coinbase_to_alt_recipient += 1;
break;
case TxPayloadTypeID.ContractCall:
counts.txs.contract_call += 1;
break;
case TxPayloadTypeID.NakamotoCoinbase:
counts.txs.nakamoto_coinbase += 1;
break;
case TxPayloadTypeID.PoisonMicroblock:
counts.txs.poison_microblock += 1;
break;
case TxPayloadTypeID.SmartContract:
counts.txs.smart_contract += 1;
break;
case TxPayloadTypeID.TenureChange:
counts.txs.tenure_change += 1;
break;
case TxPayloadTypeID.TokenTransfer:
counts.txs.token_transfer += 1;
break;
case TxPayloadTypeID.VersionedSmartContract:
counts.txs.versioned_smart_contract += 1;
break;
}
}
});
for (const event of msg.events) {
counts.event_total += 1;
counts.events[event.type] += 1;
}
const signerBitvec = msg.signer_bitvec
? BitVec.consensusDeserializeToString(msg.signer_bitvec)
: null;
const dbBlock: DbBlock = {
canonical: true,
block_hash: msg.block_hash,
index_block_hash: msg.index_block_hash,
parent_index_block_hash: msg.parent_index_block_hash,
parent_block_hash: msg.parent_block_hash,
parent_microblock_hash: msg.parent_microblock,
parent_microblock_sequence: msg.parent_microblock_sequence,
block_height: msg.block_height,
burn_block_time: msg.burn_block_time,
burn_block_hash: msg.burn_block_hash,
burn_block_height: msg.burn_block_height,
miner_txid: msg.miner_txid,
execution_cost_read_count: 0,
execution_cost_read_length: 0,
execution_cost_runtime: 0,
execution_cost_write_count: 0,
execution_cost_write_length: 0,
tx_count: msg.transactions.length,
block_time: blockData.block_time,
signer_bitvec: signerBitvec,
};
logger.debug(`Received block ${msg.block_hash} (${msg.block_height}) from node`, dbBlock);
const dbMinerRewards: DbMinerReward[] = [];
for (const minerReward of msg.matured_miner_rewards) {
const dbMinerReward: DbMinerReward = {
canonical: true,
block_hash: minerReward.from_stacks_block_hash,
index_block_hash: msg.index_block_hash,
from_index_block_hash: minerReward.from_index_consensus_hash,
mature_block_height: msg.block_height,
recipient: minerReward.recipient,
// If `miner_address` is null then it means pre-Stacks2.1 data, and the `recipient` can be accurately used
miner_address: minerReward.miner_address ?? minerReward.recipient,
coinbase_amount: BigInt(minerReward.coinbase_amount),
tx_fees_anchored: BigInt(minerReward.tx_fees_anchored),
tx_fees_streamed_confirmed: BigInt(minerReward.tx_fees_streamed_confirmed),
tx_fees_streamed_produced: BigInt(minerReward.tx_fees_streamed_produced),
};
dbMinerRewards.push(dbMinerReward);
counts.miner_rewards += 1;
}
logger.debug(`Received ${dbMinerRewards.length} matured miner rewards`);
const dbMicroblocks = parseMicroblocksFromTxs({
parentIndexBlockHash: msg.parent_index_block_hash,
txs: msg.transactions,
parentBurnBlock: {
height: msg.parent_burn_block_height,
hash: msg.parent_burn_block_hash,
time: msg.parent_burn_block_timestamp,
},
}).map(mb => {
const microblock: DbMicroblock = {
...mb,
canonical: true,
microblock_canonical: true,
block_height: msg.block_height,
parent_block_height: msg.block_height - 1,
parent_block_hash: msg.parent_block_hash,
index_block_hash: msg.index_block_hash,
block_hash: msg.block_hash,
};
counts.microblocks += 1;
return microblock;
});
let poxSetSigners: DbPoxSetSigners | undefined;
if (msg.reward_set) {
assertNotNullish(
msg.cycle_number,
() => 'Cycle number must be present if reward set is present'
);
let signers: DbPoxSetSigners['signers'] = [];
if (msg.reward_set.signers) {
signers = msg.reward_set.signers.map(signer => ({
signing_key: '0x' + signer.signing_key,
weight: signer.weight,
stacked_amount: BigInt(signer.stacked_amt),
}));
logger.info(
`Received new pox set message, block=${msg.block_height}, cycle=${msg.cycle_number}, signers=${msg.reward_set.signers.length}`
);
}
let rewardedAddresses: string[] = [];
if (msg.reward_set.rewarded_addresses) {
rewardedAddresses = msg.reward_set.rewarded_addresses;
logger.info(
`Received new pox set message, ${rewardedAddresses.length} rewarded BTC addresses`
);
}
poxSetSigners = {
cycle_number: msg.cycle_number,
pox_ustx_threshold: BigInt(msg.reward_set.pox_ustx_threshold),
signers,
rewarded_addresses: rewardedAddresses,
};
}
const dbData: DataStoreBlockUpdateData = {
block: dbBlock,
microblocks: dbMicroblocks,
minerRewards: dbMinerRewards,
txs: parseDataStoreTxEventData(parsedTxs, msg.events, dbBlock, chainId),
pox_v1_unlock_height: msg.pox_v1_unlock_height,
pox_v2_unlock_height: msg.pox_v2_unlock_height,
pox_v3_unlock_height: msg.pox_v3_unlock_height,
poxSetSigners: poxSetSigners,
};
await db.update(dbData);
const ingestionTime = ingestionTimer.getElapsed();
logger.info(
counts,
`Ingested block ${msg.block_height} (${msg.block_hash}) in ${ingestionTime}ms`
);
}
function parseDataStoreTxEventData(
parsedTxs: CoreNodeParsedTxMessage[],
events: CoreNodeEvent[],
blockData: {
block_height: number;
index_block_hash: string;
block_time: number;
},
chainId: ChainID
): DataStoreTxEventData[] {
const dbData: DataStoreTxEventData[] = parsedTxs.map(tx => {
const dbTx: DataStoreBlockUpdateData['txs'][number] = {
tx: createDbTxFromCoreMsg(tx),
stxEvents: [],
stxLockEvents: [],
ftEvents: [],
nftEvents: [],
contractLogEvents: [],
smartContracts: [],
names: [],
namespaces: [],
pox2Events: [],
pox3Events: [],
pox4Events: [],
};
switch (tx.parsed_tx.payload.type_id) {
case TxPayloadTypeID.VersionedSmartContract:
case TxPayloadTypeID.SmartContract:
const contractId = `${tx.sender_address}.${tx.parsed_tx.payload.contract_name}`;
const clarityVersion =
tx.parsed_tx.payload.type_id == TxPayloadTypeID.VersionedSmartContract
? tx.parsed_tx.payload.clarity_version
: null;
dbTx.smartContracts.push({
tx_id: tx.core_tx.txid,
contract_id: contractId,
block_height: blockData.block_height,
clarity_version: clarityVersion,
source_code: tx.parsed_tx.payload.code_body,
abi: JSON.stringify(tx.core_tx.contract_abi),
canonical: true,
});
break;
case TxPayloadTypeID.ContractCall:
// Name renewals can happen without a zonefile_hash. In that case, the BNS contract does NOT
// emit a `name-renewal` contract log, causing us to miss this event. This function catches
// those cases.
const name = parseNameRenewalWithNoZonefileHashFromContractCall(tx, chainId);
if (name) {
dbTx.names.push(name);
}
break;
default:
break;
}
return dbTx;
});
for (const event of events) {
if (!event.committed) {
logger.debug(`Ignoring uncommitted tx event from tx ${event.txid}`);
continue;
}
const dbTx = dbData.find(entry => entry.tx.tx_id === event.txid);
if (!dbTx) {
throw new Error(`Unexpected missing tx during event parsing by tx_id ${event.txid}`);
}
if (dbTx.tx.status !== DbTxStatus.Success) {
if (event.type === CoreNodeEventType.ContractEvent) {
let reprStr = '?';
try {
reprStr = decodeClarityValue(event.contract_event.raw_value).repr;
} catch (e) {
logger.warn(`Failed to decode contract log event: ${event.contract_event.raw_value}`);
}
logger.debug(
`Ignoring tx event from unsuccessful tx ${event.txid}, status: ${dbTx.tx.status}, repr: ${reprStr}`
);
} else {
logger.debug(
`Ignoring tx event from unsuccessful tx ${event.txid}, status: ${dbTx.tx.status}`
);
}
continue;
}
const dbEvent: DbEventBase = {
event_index: event.event_index,
tx_id: event.txid,
tx_index: dbTx.tx.tx_index,
block_height: blockData.block_height,
canonical: true,
};
switch (event.type) {
case CoreNodeEventType.ContractEvent: {
const entry: DbSmartContractEvent = {
...dbEvent,
event_type: DbEventTypeId.SmartContractLog,
contract_identifier: event.contract_event.contract_identifier,
topic: event.contract_event.topic,
value: event.contract_event.raw_value,
};
dbTx.contractLogEvents.push(entry);
if (isPoxPrintEvent(event)) {
const network = getChainIDNetwork(chainId) === 'mainnet' ? 'mainnet' : 'testnet';
const [, contractName] = event.contract_event.contract_identifier.split('.');
// pox-1 is handled in custom node events
const processSyntheticEvent = [
POX_2_CONTRACT_NAME,
POX_3_CONTRACT_NAME,
POX_4_CONTRACT_NAME,
].includes(contractName);
if (processSyntheticEvent) {
const poxEventData = decodePoxSyntheticPrintEvent(
event.contract_event.raw_value,
network
);
if (poxEventData !== null) {
logger.debug(`Synthetic pox event data for ${contractName}:`, poxEventData);
const dbPoxEvent: DbPoxSyntheticEvent = {
...dbEvent,
...poxEventData,
};
switch (contractName) {
case POX_2_CONTRACT_NAME: {
dbTx.pox2Events.push(dbPoxEvent);
break;
}
case POX_3_CONTRACT_NAME: {
dbTx.pox3Events.push(dbPoxEvent);
break;
}
case POX_4_CONTRACT_NAME: {
dbTx.pox4Events.push(dbPoxEvent);
break;
}
}
}
}
}
// Check if we have new BNS names or namespaces.
const parsedTx = parsedTxs.find(entry => entry.core_tx.txid === event.txid);
if (!parsedTx) {
throw new Error(`Unexpected missing tx during BNS parsing by tx_id ${event.txid}`);
}
const name = parseNameFromContractEvent(
event,
parsedTx,
events,
blockData.block_height,
chainId
);
if (name) {
dbTx.names.push(name);
}
const namespace = parseNamespaceFromContractEvent(event, parsedTx, blockData.block_height);
if (namespace) {
dbTx.namespaces.push(namespace);
}
break;
}
case CoreNodeEventType.StxLockEvent: {
const entry: DbStxLockEvent = {
...dbEvent,
event_type: DbEventTypeId.StxLock,
locked_amount: BigInt(event.stx_lock_event.locked_amount),
unlock_height: Number(event.stx_lock_event.unlock_height),
locked_address: event.stx_lock_event.locked_address,
// if no contract name available, then we can correctly assume pox-v1
contract_name: event.stx_lock_event.contract_identifier?.split('.')[1] ?? 'pox',
};
dbTx.stxLockEvents.push(entry);
break;
}
case CoreNodeEventType.StxTransferEvent: {
const entry: DbStxEvent = {
...dbEvent,
event_type: DbEventTypeId.StxAsset,
asset_event_type_id: DbAssetEventTypeId.Transfer,
sender: event.stx_transfer_event.sender,
recipient: event.stx_transfer_event.recipient,
amount: BigInt(event.stx_transfer_event.amount),
memo: event.stx_transfer_event.memo ? '0x' + event.stx_transfer_event.memo : undefined,
};
dbTx.stxEvents.push(entry);
break;
}
case CoreNodeEventType.StxMintEvent: {
const entry: DbStxEvent = {
...dbEvent,
event_type: DbEventTypeId.StxAsset,
asset_event_type_id: DbAssetEventTypeId.Mint,
recipient: event.stx_mint_event.recipient,
amount: BigInt(event.stx_mint_event.amount),
};
dbTx.stxEvents.push(entry);
break;
}
case CoreNodeEventType.StxBurnEvent: {
const entry: DbStxEvent = {
...dbEvent,
event_type: DbEventTypeId.StxAsset,
asset_event_type_id: DbAssetEventTypeId.Burn,
sender: event.stx_burn_event.sender,
amount: BigInt(event.stx_burn_event.amount),
};
dbTx.stxEvents.push(entry);
break;
}
case CoreNodeEventType.FtTransferEvent: {
const entry: DbFtEvent = {
...dbEvent,
event_type: DbEventTypeId.FungibleTokenAsset,
asset_event_type_id: DbAssetEventTypeId.Transfer,
sender: event.ft_transfer_event.sender,
recipient: event.ft_transfer_event.recipient,
asset_identifier: event.ft_transfer_event.asset_identifier,
amount: BigInt(event.ft_transfer_event.amount),
};
dbTx.ftEvents.push(entry);
break;
}
case CoreNodeEventType.FtMintEvent: {
const entry: DbFtEvent = {
...dbEvent,
event_type: DbEventTypeId.FungibleTokenAsset,
asset_event_type_id: DbAssetEventTypeId.Mint,
recipient: event.ft_mint_event.recipient,
asset_identifier: event.ft_mint_event.asset_identifier,
amount: BigInt(event.ft_mint_event.amount),
};
dbTx.ftEvents.push(entry);
break;
}
case CoreNodeEventType.FtBurnEvent: {
const entry: DbFtEvent = {
...dbEvent,
event_type: DbEventTypeId.FungibleTokenAsset,
asset_event_type_id: DbAssetEventTypeId.Burn,
sender: event.ft_burn_event.sender,
asset_identifier: event.ft_burn_event.asset_identifier,
amount: BigInt(event.ft_burn_event.amount),
};
dbTx.ftEvents.push(entry);
break;
}
case CoreNodeEventType.NftTransferEvent: {
const entry: DbNftEvent = {
...dbEvent,
event_type: DbEventTypeId.NonFungibleTokenAsset,
asset_event_type_id: DbAssetEventTypeId.Transfer,
recipient: event.nft_transfer_event.recipient,
sender: event.nft_transfer_event.sender,
asset_identifier: event.nft_transfer_event.asset_identifier,
value: event.nft_transfer_event.raw_value,
};
dbTx.nftEvents.push(entry);
break;
}
case CoreNodeEventType.NftMintEvent: {
const entry: DbNftEvent = {
...dbEvent,
event_type: DbEventTypeId.NonFungibleTokenAsset,
asset_event_type_id: DbAssetEventTypeId.Mint,
recipient: event.nft_mint_event.recipient,
asset_identifier: event.nft_mint_event.asset_identifier,
value: event.nft_mint_event.raw_value,
};
dbTx.nftEvents.push(entry);
break;
}
case CoreNodeEventType.NftBurnEvent: {
const entry: DbNftEvent = {
...dbEvent,
event_type: DbEventTypeId.NonFungibleTokenAsset,
asset_event_type_id: DbAssetEventTypeId.Burn,
sender: event.nft_burn_event.sender,
asset_identifier: event.nft_burn_event.asset_identifier,
value: event.nft_burn_event.raw_value,
};
dbTx.nftEvents.push(entry);
break;
}
default: {
throw new Error(`Unexpected CoreNodeEventType: ${inspect(event)}`);
}
}
}
// Normalize event indexes from per-block to per-transaction contiguous series.
for (const tx of dbData) {
const sortedEvents = [
tx.contractLogEvents,
tx.ftEvents,
tx.nftEvents,
tx.stxEvents,
tx.stxLockEvents,
tx.pox2Events,
tx.pox3Events,
tx.pox4Events,
]
.flat()
.sort((a, b) => a.event_index - b.event_index);
tx.tx.event_count = sortedEvents.length;
for (let i = 0; i < sortedEvents.length; i++) {
sortedEvents[i].event_index = i;
}
}
return dbData;
}
async function handleNewAttachmentMessage(msg: CoreNodeAttachmentMessage[], db: PgWriteStore) {
const attachments = msg
.map(message => {
if (
message.contract_id === BnsContractIdentifier.mainnet ||
message.contract_id === BnsContractIdentifier.testnet
) {
const metadataCV = decodeClarityValue<
ClarityValueTuple<{
op: ClarityValueStringAscii;
name: ClarityValueBuffer;
namespace: ClarityValueBuffer;
}>
>(message.metadata);
return {
op: metadataCV.data['op'].data,
zonefile: message.content.slice(2),
name: hexToBuffer(metadataCV.data['name'].buffer).toString('utf8'),
namespace: hexToBuffer(metadataCV.data['namespace'].buffer).toString('utf8'),
zonefileHash: message.content_hash,
txId: message.tx_id,
indexBlockHash: message.index_block_hash,
blockHeight: Number.parseInt(message.block_height, 10),
} as DataStoreAttachmentData;
}
})
.filter((msg): msg is DataStoreAttachmentData => !!msg);
await db.updateAttachments(attachments);
}
export const DummyEventMessageHandler: EventMessageHandler = {
handleRawEventRequest: () => {},
handleBlockMessage: () => {},
handleMicroblockMessage: () => {},
handleBurnBlock: () => {},
handleMempoolTxs: () => {},
handleDroppedMempoolTxs: () => {},
handleNewAttachment: () => {},
};
interface EventMessageHandler {
handleRawEventRequest(eventPath: string, payload: any, db: PgWriteStore): Promise<void> | void;
handleBlockMessage(
chainId: ChainID,
msg: CoreNodeBlockMessage,
db: PgWriteStore
): Promise<void> | void;
handleMicroblockMessage(
chainId: ChainID,
msg: CoreNodeMicroblockMessage,
db: PgWriteStore
): Promise<void> | void;
handleMempoolTxs(rawTxs: string[], db: PgWriteStore): Promise<void> | void;
handleBurnBlock(msg: CoreNodeBurnBlockMessage, db: PgWriteStore): Promise<void> | void;
handleDroppedMempoolTxs(
msg: CoreNodeDropMempoolTxMessage,
db: PgWriteStore
): Promise<void> | void;
handleNewAttachment(msg: CoreNodeAttachmentMessage[], db: PgWriteStore): Promise<void> | void;
}
function createMessageProcessorQueue(): EventMessageHandler {
// Create a promise queue so that only one message is handled at a time.
const processorQueue = new PQueue({ concurrency: 1 });
let eventTimer: prom.Histogram<'event'> | undefined;
if (isProdEnv) {
eventTimer = new prom.Histogram({
name: 'stacks_event_ingestion_timers',
help: 'Event ingestion timers',
labelNames: ['event'],
buckets: prom.exponentialBuckets(50, 3, 10), // 10 buckets, from 50 ms to 15 minutes
});
}
const observeEvent = async (event: string, fn: () => Promise<void>) => {
const timer = stopwatch();
try {
await fn();
} finally {
const elapsedMs = timer.getElapsed();
eventTimer?.observe({ event }, elapsedMs);
}
};
const handler: EventMessageHandler = {
handleRawEventRequest: (eventPath: string, payload: any, db: PgWriteStore) => {
return processorQueue
.add(() => observeEvent('raw_event', () => handleRawEventRequest(eventPath, payload, db)))
.catch(e => {
logger.error(e, 'Error storing raw core node request data');
throw e;
});
},
handleBlockMessage: (chainId: ChainID, msg: CoreNodeBlockMessage, db: PgWriteStore) => {
return processorQueue
.add(() => observeEvent('block', () => handleBlockMessage(chainId, msg, db)))
.catch(e => {
logger.error(e, 'Error processing core node block message');
throw e;
});
},
handleMicroblockMessage: (
chainId: ChainID,
msg: CoreNodeMicroblockMessage,
db: PgWriteStore
) => {
return processorQueue
.add(() => observeEvent('microblock', () => handleMicroblockMessage(chainId, msg, db)))
.catch(e => {
logger.error(e, 'Error processing core node microblock message');
throw e;
});
},
handleBurnBlock: (msg: CoreNodeBurnBlockMessage, db: PgWriteStore) => {
return processorQueue
.add(() => observeEvent('burn_block', () => handleBurnBlockMessage(msg, db)))
.catch(e => {
logger.error(e, 'Error processing core node burn block message');
throw e;
});
},
handleMempoolTxs: (rawTxs: string[], db: PgWriteStore) => {
return processorQueue
.add(() => observeEvent('mempool_txs', () => handleMempoolTxsMessage(rawTxs, db)))
.catch(e => {
logger.error(e, 'Error processing core node mempool message');
throw e;
});
},
handleDroppedMempoolTxs: (msg: CoreNodeDropMempoolTxMessage, db: PgWriteStore) => {
return processorQueue
.add(() =>
observeEvent('dropped_mempool_txs', () => handleDroppedMempoolTxsMessage(msg, db))
)
.catch(e => {
logger.error(e, 'Error processing core node dropped mempool txs message');
throw e;
});
},
handleNewAttachment: (msg: CoreNodeAttachmentMessage[], db: PgWriteStore) => {
return processorQueue
.add(() => observeEvent('new_attachment', () => handleNewAttachmentMessage(msg, db)))
.catch(e => {
logger.error(e, 'Error processing new attachment message');
throw e;
});
},
};
return handler;
}
export type EventStreamServer = net.Server & {
serverAddress: net.AddressInfo;
closeAsync: () => Promise<void>;
};
export async function startEventServer(opts: {
datastore: PgWriteStore;
chainId: ChainID;
messageHandler?: EventMessageHandler;
/** If not specified, this is read from the STACKS_CORE_EVENT_HOST env var. */
serverHost?: string;
/** If not specified, this is read from the STACKS_CORE_EVENT_PORT env var. */
serverPort?: number;
}): Promise<EventStreamServer> {
const db = opts.datastore;
const messageHandler = opts.messageHandler ?? createMessageProcessorQueue();
let eventHost = opts.serverHost ?? process.env['STACKS_CORE_EVENT_HOST'];
const eventPort = opts.serverPort ?? parseInt(process.env['STACKS_CORE_EVENT_PORT'] ?? '', 10);
if (!eventHost) {
throw new Error(
`STACKS_CORE_EVENT_HOST must be specified, e.g. "STACKS_CORE_EVENT_HOST=127.0.0.1"`
);
}
if (!Number.isInteger(eventPort)) {
throw new Error(`STACKS_CORE_EVENT_PORT must be specified, e.g. "STACKS_CORE_EVENT_PORT=3700"`);
}
if (eventHost.startsWith('http:')) {
const { hostname } = new URL(eventHost);
eventHost = hostname;
}
const app = express();
const handleRawEventRequest = async (req: express.Request) => {
await messageHandler.handleRawEventRequest(req.path, req.body, db);
if (logger.level === 'debug') {
const eventPath = req.path;
let payload = JSON.stringify(req.body);
// Skip logging massive event payloads, this _should_ only exclude the genesis block payload which is ~80 MB.
if (payload.length > 10_000_000) {
payload = 'payload body too large for logging';
}
logger.debug(`${eventPath} ${payload}`, { component: 'stacks-node-event' });
}
};
app.use(loggerMiddleware);
app.use(bodyParser.json({ type: 'application/json', limit: '500MB' }));
const ibdHeight = getIbdBlockHeight();
if (ibdHeight) {
app.use(IBD_PRUNABLE_ROUTES, async (req, res, next) => {
try {
const chainTip = await db.getChainTip(db.sql);
if (chainTip.block_height > ibdHeight) {
next();
} else {
await handleRawEventRequest(req);
res.status(200).send(`IBD`);
}
} catch (error) {
res
.status(500)
.json({ message: 'A middleware error occurred processing the request in IBD mode.' });
}
});
}
app.get('/', (req, res) => {
res
.status(200)
.json({ status: 'ready', msg: 'API event server listening for core-node POST messages' });
});
app.post(
'/new_block',
asyncHandler(async (req, res) => {
try {
const blockMessage: CoreNodeBlockMessage = req.body;
await messageHandler.handleBlockMessage(opts.chainId, blockMessage, db);
if (blockMessage.block_height === 1) {
await handleBnsImport(db);
}
await handleRawEventRequest(req);
res.status(200).json({ result: 'ok' });
} catch (error) {
logger.error(error, 'error processing core-node /new_block');
res.status(500).json({ error: error });
}
})
);
app.post(
'/new_burn_block',
asyncHandler(async (req, res) => {
try {
const msg: CoreNodeBurnBlockMessage = req.body;
await messageHandler.handleBurnBlock(msg, db);
await handleRawEventRequest(req);
res.status(200).json({ result: 'ok' });
} catch (error) {
logger.error(error, 'error processing core-node /new_burn_block');
res.status(500).json({ error: error });
}