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