ipld-eth-server/pkg/super_node/retriever.go

337 lines
12 KiB
Go

// VulcanizeDB
// Copyright © 2019 Vulcanize
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package super_node
import (
"math/big"
"github.com/jmoiron/sqlx"
"github.com/lib/pq"
log "github.com/sirupsen/logrus"
"github.com/vulcanize/vulcanizedb/pkg/config"
"github.com/vulcanize/vulcanizedb/pkg/datastore/postgres"
"github.com/vulcanize/vulcanizedb/pkg/ipfs"
)
// CIDRetriever is the interface for retrieving CIDs from the Postgres cache
type CIDRetriever interface {
RetrieveCIDs(streamFilters config.Subscription, blockNumber int64) (*ipfs.CIDWrapper, error)
RetrieveLastBlockNumber() (int64, error)
RetrieveFirstBlockNumber() (int64, error)
RetrieveGapsInData() ([][2]uint64, error)
}
// EthCIDRetriever is the underlying struct supporting the CIDRetriever interface
type EthCIDRetriever struct {
db *postgres.DB
}
// NewCIDRetriever returns a pointer to a new EthCIDRetriever which supports the CIDRetriever interface
func NewCIDRetriever(db *postgres.DB) *EthCIDRetriever {
return &EthCIDRetriever{
db: db,
}
}
// RetrieveFirstBlockNumber is used to retrieve the first block number in the db
func (ecr *EthCIDRetriever) RetrieveFirstBlockNumber() (int64, error) {
var blockNumber int64
err := ecr.db.Get(&blockNumber, "SELECT block_number FROM header_cids ORDER BY block_number ASC LIMIT 1")
return blockNumber, err
}
// RetrieveLastBlockNumber is used to retrieve the latest block number in the db
func (ecr *EthCIDRetriever) RetrieveLastBlockNumber() (int64, error) {
var blockNumber int64
err := ecr.db.Get(&blockNumber, "SELECT block_number FROM header_cids ORDER BY block_number DESC LIMIT 1 ")
return blockNumber, err
}
// RetrieveCIDs is used to retrieve all of the CIDs which conform to the passed StreamFilters
func (ecr *EthCIDRetriever) RetrieveCIDs(streamFilters config.Subscription, blockNumber int64) (*ipfs.CIDWrapper, error) {
log.Debug("retrieving cids")
tx, beginErr := ecr.db.Beginx()
if beginErr != nil {
return nil, beginErr
}
// THIS IS SUPER EXPENSIVE HAVING TO CYCLE THROUGH EACH BLOCK, NEED BETTER WAY TO FETCH CIDS
// WHILE STILL MAINTAINING RELATION INFO ABOUT WHAT BLOCK THE CIDS BELONG TO
cw := new(ipfs.CIDWrapper)
cw.BlockNumber = big.NewInt(blockNumber)
// Retrieve cached header CIDs
if !streamFilters.HeaderFilter.Off {
var headersErr error
cw.Headers, headersErr = ecr.retrieveHeaderCIDs(tx, streamFilters, blockNumber)
if headersErr != nil {
rollbackErr := tx.Rollback()
if rollbackErr != nil {
log.Error(rollbackErr)
}
log.Error("header cid retrieval error")
return nil, headersErr
}
if streamFilters.HeaderFilter.Uncles {
var unclesErr error
cw.Uncles, unclesErr = ecr.retrieveUncleCIDs(tx, streamFilters, blockNumber)
if unclesErr != nil {
rollbackErr := tx.Rollback()
if rollbackErr != nil {
log.Error(rollbackErr)
}
log.Error("uncle cid retrieval error")
return nil, unclesErr
}
}
}
// Retrieve cached trx CIDs
var trxIds []int64
if !streamFilters.TrxFilter.Off {
var trxsErr error
cw.Transactions, trxIds, trxsErr = ecr.retrieveTrxCIDs(tx, streamFilters, blockNumber)
if trxsErr != nil {
rollbackErr := tx.Rollback()
if rollbackErr != nil {
log.Error(rollbackErr)
}
log.Error("transaction cid retrieval error")
return nil, trxsErr
}
}
// Retrieve cached receipt CIDs
if !streamFilters.ReceiptFilter.Off {
var rctsErr error
cw.Receipts, rctsErr = ecr.retrieveRctCIDs(tx, streamFilters, blockNumber, trxIds)
if rctsErr != nil {
rollbackErr := tx.Rollback()
if rollbackErr != nil {
log.Error(rollbackErr)
}
log.Error("receipt cid retrieval error")
return nil, rctsErr
}
}
// Retrieve cached state CIDs
if !streamFilters.StateFilter.Off {
var stateErr error
cw.StateNodes, stateErr = ecr.retrieveStateCIDs(tx, streamFilters, blockNumber)
if stateErr != nil {
rollbackErr := tx.Rollback()
if rollbackErr != nil {
log.Error(rollbackErr)
}
log.Error("state cid retrieval error")
return nil, stateErr
}
}
// Retrieve cached storage CIDs
if !streamFilters.StorageFilter.Off {
var storageErr error
cw.StorageNodes, storageErr = ecr.retrieveStorageCIDs(tx, streamFilters, blockNumber)
if storageErr != nil {
rollbackErr := tx.Rollback()
if rollbackErr != nil {
log.Error(rollbackErr)
}
log.Error("storage cid retrieval error")
return nil, storageErr
}
}
return cw, tx.Commit()
}
func (ecr *EthCIDRetriever) retrieveHeaderCIDs(tx *sqlx.Tx, streamFilters config.Subscription, blockNumber int64) ([]string, error) {
log.Debug("retrieving header cids for block ", blockNumber)
headers := make([]string, 0)
pgStr := `SELECT cid FROM header_cids
WHERE block_number = $1 AND uncle IS FALSE`
err := tx.Select(&headers, pgStr, blockNumber)
return headers, err
}
func (ecr *EthCIDRetriever) retrieveUncleCIDs(tx *sqlx.Tx, streamFilters config.Subscription, blockNumber int64) ([]string, error) {
log.Debug("retrieving header cids for block ", blockNumber)
headers := make([]string, 0)
pgStr := `SELECT cid FROM header_cids
WHERE block_number = $1 AND uncle IS TRUE`
err := tx.Select(&headers, pgStr, blockNumber)
return headers, err
}
func (ecr *EthCIDRetriever) retrieveTrxCIDs(tx *sqlx.Tx, streamFilters config.Subscription, blockNumber int64) ([]string, []int64, error) {
log.Debug("retrieving transaction cids for block ", blockNumber)
args := make([]interface{}, 0, 3)
type result struct {
ID int64 `db:"id"`
Cid string `db:"cid"`
}
results := make([]result, 0)
pgStr := `SELECT transaction_cids.id, transaction_cids.cid FROM transaction_cids INNER JOIN header_cids ON (transaction_cids.header_id = header_cids.id)
WHERE header_cids.block_number = $1`
args = append(args, blockNumber)
if len(streamFilters.TrxFilter.Dst) > 0 {
pgStr += ` AND transaction_cids.dst = ANY($2::VARCHAR(66)[])`
args = append(args, pq.Array(streamFilters.TrxFilter.Dst))
}
if len(streamFilters.TrxFilter.Src) > 0 {
pgStr += ` AND transaction_cids.src = ANY($3::VARCHAR(66)[])`
args = append(args, pq.Array(streamFilters.TrxFilter.Src))
}
err := tx.Select(&results, pgStr, args...)
if err != nil {
return nil, nil, err
}
ids := make([]int64, 0, len(results))
cids := make([]string, 0, len(results))
for _, res := range results {
cids = append(cids, res.Cid)
ids = append(ids, res.ID)
}
return cids, ids, nil
}
func (ecr *EthCIDRetriever) retrieveRctCIDs(tx *sqlx.Tx, streamFilters config.Subscription, blockNumber int64, trxIds []int64) ([]string, error) {
log.Debug("retrieving receipt cids for block ", blockNumber)
args := make([]interface{}, 0, 4)
pgStr := `SELECT receipt_cids.cid FROM receipt_cids, transaction_cids, header_cids
WHERE receipt_cids.tx_id = transaction_cids.id
AND transaction_cids.header_id = header_cids.id
AND header_cids.block_number = $1`
args = append(args, blockNumber)
if len(streamFilters.ReceiptFilter.Topic0s) > 0 {
pgStr += ` AND ((receipt_cids.topic0s && $2::VARCHAR(66)[]`
args = append(args, pq.Array(streamFilters.ReceiptFilter.Topic0s))
if len(streamFilters.ReceiptFilter.Contracts) > 0 {
pgStr += ` AND receipt_cids.contract = ANY($3::VARCHAR(66)[]))`
args = append(args, pq.Array(streamFilters.ReceiptFilter.Contracts))
if len(trxIds) > 0 {
pgStr += ` OR receipt_cids.tx_id = ANY($4::INTEGER[]))`
args = append(args, pq.Array(trxIds))
} else {
pgStr += `)`
}
} else {
pgStr += `)`
if len(trxIds) > 0 {
pgStr += ` OR receipt_cids.tx_id = ANY($3::INTEGER[]))`
args = append(args, pq.Array(trxIds))
} else {
pgStr += `)`
}
}
} else {
if len(streamFilters.ReceiptFilter.Contracts) > 0 {
pgStr += ` AND (receipt_cids.contract = ANY($2::VARCHAR(66)[])`
args = append(args, pq.Array(streamFilters.ReceiptFilter.Contracts))
if len(trxIds) > 0 {
pgStr += ` OR receipt_cids.tx_id = ANY($3::INTEGER[]))`
args = append(args, pq.Array(trxIds))
} else {
pgStr += `)`
}
} else if len(trxIds) > 0 {
pgStr += ` AND receipt_cids.tx_id = ANY($2::INTEGER[])`
args = append(args, pq.Array(trxIds))
}
}
receiptCids := make([]string, 0)
err := tx.Select(&receiptCids, pgStr, args...)
return receiptCids, err
}
func (ecr *EthCIDRetriever) retrieveStateCIDs(tx *sqlx.Tx, streamFilters config.Subscription, blockNumber int64) ([]ipfs.StateNodeCID, error) {
log.Debug("retrieving state cids for block ", blockNumber)
args := make([]interface{}, 0, 2)
pgStr := `SELECT state_cids.cid, state_cids.state_key, state_cids.leaf FROM state_cids INNER JOIN header_cids ON (state_cids.header_id = header_cids.id)
WHERE header_cids.block_number = $1`
args = append(args, blockNumber)
addrLen := len(streamFilters.StateFilter.Addresses)
if addrLen > 0 {
keys := make([]string, 0, addrLen)
for _, addr := range streamFilters.StateFilter.Addresses {
keys = append(keys, ipfs.HexToKey(addr).Hex())
}
pgStr += ` AND state_cids.state_key = ANY($2::VARCHAR(66)[])`
args = append(args, pq.Array(keys))
}
if !streamFilters.StorageFilter.IntermediateNodes {
pgStr += ` AND state_cids.leaf = TRUE`
}
stateNodeCIDs := make([]ipfs.StateNodeCID, 0)
err := tx.Select(&stateNodeCIDs, pgStr, args...)
return stateNodeCIDs, err
}
func (ecr *EthCIDRetriever) retrieveStorageCIDs(tx *sqlx.Tx, streamFilters config.Subscription, blockNumber int64) ([]ipfs.StorageNodeCID, error) {
log.Debug("retrieving storage cids for block ", blockNumber)
args := make([]interface{}, 0, 3)
pgStr := `SELECT storage_cids.cid, state_cids.state_key, storage_cids.storage_key, storage_cids.leaf FROM storage_cids, state_cids, header_cids
WHERE storage_cids.state_id = state_cids.id
AND state_cids.header_id = header_cids.id
AND header_cids.block_number = $1`
args = append(args, blockNumber)
addrLen := len(streamFilters.StorageFilter.Addresses)
if addrLen > 0 {
keys := make([]string, 0, addrLen)
for _, addr := range streamFilters.StorageFilter.Addresses {
keys = append(keys, ipfs.HexToKey(addr).Hex())
}
pgStr += ` AND state_cids.state_key = ANY($2::VARCHAR(66)[])`
args = append(args, pq.Array(keys))
}
if len(streamFilters.StorageFilter.StorageKeys) > 0 {
pgStr += ` AND storage_cids.storage_key = ANY($3::VARCHAR(66)[])`
args = append(args, pq.Array(streamFilters.StorageFilter.StorageKeys))
}
if !streamFilters.StorageFilter.IntermediateNodes {
pgStr += ` AND storage_cids.leaf = TRUE`
}
storageNodeCIDs := make([]ipfs.StorageNodeCID, 0)
err := tx.Select(&storageNodeCIDs, pgStr, args...)
return storageNodeCIDs, err
}
type gap struct {
Start uint64 `db:"start"`
Stop uint64 `db:"stop"`
}
// RetrieveGapsInData is used to find the the block numbers at which we are missing data in the db
func (ecr *EthCIDRetriever) RetrieveGapsInData() ([][2]uint64, error) {
pgStr := `SELECT header_cids.block_number + 1 AS start, min(fr.block_number) - 1 AS stop FROM header_cids
LEFT JOIN header_cids r on header_cids.block_number = r.block_number - 1
LEFT JOIN header_cids fr on header_cids.block_number < fr.block_number
WHERE r.block_number is NULL and fr.block_number IS NOT NULL
GROUP BY header_cids.block_number, r.block_number`
gaps := make([]gap, 0)
err := ecr.db.Select(&gaps, pgStr)
if err != nil {
return nil, err
}
gapRanges := make([][2]uint64, 0)
for _, gap := range gaps {
gapRanges = append(gapRanges, [2]uint64{gap.Start, gap.Stop})
}
return gapRanges, nil
}