ipld-eth-server/pkg/eth/cid_retriever.go
2023-03-02 17:41:44 -06:00

375 lines
13 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 eth
import (
"fmt"
"math/big"
"github.com/cerc-io/ipld-eth-server/v4/pkg/log"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/statediff/indexer/models"
"github.com/jmoiron/sqlx"
"github.com/lib/pq"
"gorm.io/driver/postgres"
"gorm.io/gorm"
)
// CIDRetriever satisfies the CIDRetriever interface for ethereum
type CIDRetriever struct {
db *sqlx.DB
gormDB *gorm.DB
}
type IPLDModelRecord struct {
models.IPLDModel
}
// TableName overrides the table name used by IPLD
func (IPLDModelRecord) TableName() string {
return "ipld.blocks"
}
type HeaderCIDRecord struct {
CID string `gorm:"column:cid"`
BlockHash string `gorm:"primaryKey"`
BlockNumber string `gorm:"primaryKey"`
ParentHash string
Timestamp uint64
StateRoot string
TotalDifficulty string `gorm:"column:td"`
TxRoot string
RctRoot string `gorm:"column:receipt_root"`
UncleRoot string
Bloom []byte
MhKey string
// gorm doesn't check if foreign key exists in database.
// It is required to eager load relations using preload.
TransactionCIDs []TransactionCIDRecord `gorm:"foreignKey:HeaderID,BlockNumber;references:BlockHash,BlockNumber"`
IPLD IPLDModelRecord `gorm:"foreignKey:MhKey,BlockNumber;references:Key,BlockNumber"`
}
// TableName overrides the table name used by HeaderCIDRecord
func (HeaderCIDRecord) TableName() string {
return "eth.header_cids"
}
type TransactionCIDRecord struct {
CID string `gorm:"column:cid"`
TxHash string `gorm:"primaryKey"`
BlockNumber string `gorm:"primaryKey"`
HeaderID string `gorm:"column:header_id"`
Index int64
Src string
Dst string
MhKey string
IPLD IPLDModelRecord `gorm:"foreignKey:MhKey,BlockNumber;references:Key,BlockNumber"`
}
// TableName overrides the table name used by TransactionCIDRecord
func (TransactionCIDRecord) TableName() string {
return "eth.transaction_cids"
}
// NewCIDRetriever returns a pointer to a new CIDRetriever which supports the CIDRetriever interface
func NewCIDRetriever(db *sqlx.DB) *CIDRetriever {
gormDB, err := gorm.Open(postgres.New(postgres.Config{
Conn: db,
}), &gorm.Config{})
if err != nil {
log.Error(err)
return nil
}
return &CIDRetriever{
db: db,
gormDB: gormDB,
}
}
// RetrieveFirstBlockNumber is used to retrieve the first block number in the db
func (ecr *CIDRetriever) RetrieveFirstBlockNumber() (int64, error) {
var blockNumber int64
err := ecr.db.Get(&blockNumber, "SELECT block_number FROM eth.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 *CIDRetriever) RetrieveLastBlockNumber() (int64, error) {
var blockNumber int64
err := ecr.db.Get(&blockNumber, "SELECT block_number FROM eth.header_cids ORDER BY block_number DESC LIMIT 1")
return blockNumber, err
}
func topicFilterCondition(id *int, topics [][]string, args []interface{}, pgStr string, first bool) (string, []interface{}) {
for i, topicSet := range topics {
if len(topicSet) == 0 {
continue
}
if !first {
pgStr += " AND"
} else {
first = false
}
pgStr += fmt.Sprintf(` eth.log_cids.topic%d = ANY ($%d)`, i, *id)
args = append(args, pq.Array(topicSet))
*id++
}
return pgStr, args
}
func logFilterCondition(id *int, pgStr string, args []interface{}, rctFilter ReceiptFilter) (string, []interface{}) {
if len(rctFilter.LogAddresses) > 0 {
pgStr += fmt.Sprintf(` AND eth.log_cids.address = ANY ($%d)`, *id)
args = append(args, pq.Array(rctFilter.LogAddresses))
*id++
}
// Filter on topics if there are any
if hasTopics(rctFilter.Topics) {
pgStr, args = topicFilterCondition(id, rctFilter.Topics, args, pgStr, false)
}
return pgStr, args
}
func receiptFilterConditions(id *int, pgStr string, args []interface{}, rctFilter ReceiptFilter, txHashes []string) (string, []interface{}) {
rctCond := " AND (receipt_cids.tx_id = ANY ( "
logQuery := "SELECT rct_id FROM eth.log_cids WHERE"
if len(rctFilter.LogAddresses) > 0 {
// Filter on log contract addresses if there are any
pgStr += fmt.Sprintf(`%s %s eth.log_cids.address = ANY ($%d)`, rctCond, logQuery, *id)
args = append(args, pq.Array(rctFilter.LogAddresses))
*id++
// Filter on topics if there are any
if hasTopics(rctFilter.Topics) {
pgStr, args = topicFilterCondition(id, rctFilter.Topics, args, pgStr, false)
}
pgStr += ")"
// Filter on txHashes if there are any, and we are matching txs
if rctFilter.MatchTxs && len(txHashes) > 0 {
pgStr += fmt.Sprintf(` OR receipt_cids.tx_id = ANY($%d)`, *id)
args = append(args, pq.Array(txHashes))
}
pgStr += ")"
} else { // If there are no contract addresses to filter on
// Filter on topics if there are any
if hasTopics(rctFilter.Topics) {
pgStr += rctCond + logQuery
pgStr, args = topicFilterCondition(id, rctFilter.Topics, args, pgStr, true)
pgStr += ")"
// Filter on txHashes if there are any, and we are matching txs
if rctFilter.MatchTxs && len(txHashes) > 0 {
pgStr += fmt.Sprintf(` OR receipt_cids.tx_id = ANY($%d)`, *id)
args = append(args, pq.Array(txHashes))
}
pgStr += ")"
} else if rctFilter.MatchTxs && len(txHashes) > 0 {
// If there are no contract addresses or topics to filter on,
// Filter on txHashes if there are any, and we are matching txs
pgStr += fmt.Sprintf(` AND receipt_cids.tx_id = ANY($%d)`, *id)
args = append(args, pq.Array(txHashes))
}
}
return pgStr, args
}
// RetrieveFilteredGQLLogs retrieves and returns all the log CIDs provided blockHash that conform to the provided
// filter parameters.
func (ecr *CIDRetriever) RetrieveFilteredGQLLogs(tx *sqlx.Tx, rctFilter ReceiptFilter, blockHash *common.Hash, blockNumber *big.Int) ([]LogResult, error) {
log.Debug("retrieving log cids for receipt ids with block hash", blockHash.String())
args := make([]interface{}, 0, 4)
id := 1
pgStr := `SELECT CAST(eth.log_cids.block_number as Text), eth.log_cids.header_id as block_hash,
eth.log_cids.leaf_cid, eth.log_cids.index, eth.log_cids.rct_id, eth.log_cids.address,
eth.log_cids.topic0, eth.log_cids.topic1, eth.log_cids.topic2, eth.log_cids.topic3, eth.log_cids.log_data,
data, eth.receipt_cids.leaf_cid as cid, eth.receipt_cids.post_status, eth.receipt_cids.tx_id AS tx_hash
FROM eth.log_cids, eth.receipt_cids, ipld.blocks
WHERE eth.log_cids.rct_id = receipt_cids.tx_id
AND eth.log_cids.header_id = receipt_cids.header_id
AND eth.log_cids.block_number = receipt_cids.block_number
AND log_cids.leaf_mh_key = blocks.key
AND log_cids.block_number = blocks.block_number
AND receipt_cids.header_id = $1`
args = append(args, blockHash.String())
id++
if blockNumber != nil {
pgStr += ` AND receipt_cids.block_number = $2`
id++
args = append(args, blockNumber.Int64())
}
pgStr, args = logFilterCondition(&id, pgStr, args, rctFilter)
pgStr += ` ORDER BY log_cids.index`
logCIDs := make([]LogResult, 0)
err := tx.Select(&logCIDs, pgStr, args...)
if err != nil {
return nil, err
}
return logCIDs, nil
}
// RetrieveFilteredLog retrieves and returns all the log CIDs provided blockHeight or blockHash that conform to the provided
// filter parameters.
func (ecr *CIDRetriever) RetrieveFilteredLog(tx *sqlx.Tx, rctFilter ReceiptFilter, blockNumber int64, blockHash *common.Hash) ([]LogResult, error) {
log.Debug("retrieving log cids for receipt ids")
args := make([]interface{}, 0, 4)
pgStr := `SELECT CAST(eth.log_cids.block_number as Text), eth.log_cids.leaf_cid, eth.log_cids.index, eth.log_cids.rct_id,
eth.log_cids.address, eth.log_cids.topic0, eth.log_cids.topic1, eth.log_cids.topic2, eth.log_cids.topic3,
eth.log_cids.log_data, eth.transaction_cids.tx_hash, eth.transaction_cids.index as txn_index,
eth.receipt_cids.leaf_cid as cid, eth.receipt_cids.post_status, header_cids.block_hash
FROM eth.log_cids, eth.receipt_cids, eth.transaction_cids, eth.header_cids
WHERE eth.log_cids.rct_id = receipt_cids.tx_id
AND eth.log_cids.header_id = eth.receipt_cids.header_id
AND eth.log_cids.block_number = eth.receipt_cids.block_number
AND receipt_cids.tx_id = transaction_cids.tx_hash
AND receipt_cids.header_id = transaction_cids.header_id
AND receipt_cids.block_number = transaction_cids.block_number
AND transaction_cids.header_id = header_cids.block_hash
AND transaction_cids.block_number = header_cids.block_number`
id := 1
if blockNumber > 0 {
pgStr += fmt.Sprintf(` AND header_cids.block_number = $%d`, id)
args = append(args, blockNumber)
id++
}
if blockHash != nil {
pgStr += fmt.Sprintf(` AND header_cids.block_hash = $%d`, id)
args = append(args, blockHash.String())
id++
}
pgStr, args = logFilterCondition(&id, pgStr, args, rctFilter)
pgStr += ` ORDER BY log_cids.index`
logCIDs := make([]LogResult, 0)
err := tx.Select(&logCIDs, pgStr, args...)
if err != nil {
return nil, err
}
return logCIDs, nil
}
func hasTopics(topics [][]string) bool {
for _, topicSet := range topics {
if len(topicSet) > 0 {
return true
}
}
return false
}
// RetrieveHeaderCIDByHash returns the header for the given block hash
func (ecr *CIDRetriever) RetrieveHeaderCIDByHash(tx *sqlx.Tx, blockHash common.Hash) (models.HeaderModel, error) {
log.Debug("retrieving header cids for block hash ", blockHash.String())
pgStr := `SELECT block_hash, CAST(block_number as Text), parent_hash, cid, mh_key, CAST(td as Text),
state_root, uncle_root, tx_root, receipt_root, bloom, timestamp FROM eth.header_cids
WHERE block_hash = $1`
var headerCID models.HeaderModel
return headerCID, tx.Get(&headerCID, pgStr, blockHash.String())
}
// RetrieveHeaderAndTxCIDsByBlockNumber retrieves header CIDs and their associated tx CIDs by block number
func (ecr *CIDRetriever) RetrieveHeaderAndTxCIDsByBlockNumber(blockNumber int64) ([]HeaderCIDRecord, error) {
log.Debug("retrieving header cids and tx cids for block number ", blockNumber)
var headerCIDs []HeaderCIDRecord
// https://github.com/go-gorm/gorm/issues/4083#issuecomment-778883283
// Will use join for TransactionCIDs once preload for 1:N is supported.
err := ecr.gormDB.Preload("TransactionCIDs", func(tx *gorm.DB) *gorm.DB {
return tx.Select("cid", "tx_hash", "index", "src", "dst", "header_id", "block_number")
}).Joins("IPLD").Find(&headerCIDs, "header_cids.block_number = ?", blockNumber).Error
if err != nil {
log.Error("header cid retrieval error")
return nil, err
}
return headerCIDs, nil
}
// RetrieveHeaderAndTxCIDsByBlockHash retrieves header CID and their associated tx CIDs by block hash (and optionally block number)
func (ecr *CIDRetriever) RetrieveHeaderAndTxCIDsByBlockHash(blockHash common.Hash, blockNumber *big.Int) (HeaderCIDRecord, error) {
log.Debug("retrieving header cid and tx cids for block hash ", blockHash.String())
var headerCIDs []HeaderCIDRecord
conditions := map[string]interface{}{"block_hash": blockHash.String()}
if blockNumber != nil {
conditions["header_cids.block_number"] = blockNumber.Int64()
}
// https://github.com/go-gorm/gorm/issues/4083#issuecomment-778883283
// Will use join for TransactionCIDs once preload for 1:N is supported.
err := ecr.gormDB.Preload("TransactionCIDs", func(tx *gorm.DB) *gorm.DB {
return tx.Select("cid", "tx_hash", "index", "src", "dst", "header_id", "block_number")
}).Joins("IPLD").Find(&headerCIDs, conditions).Error
if err != nil {
log.Error("header cid retrieval error")
return HeaderCIDRecord{}, err
}
if len(headerCIDs) == 0 {
return HeaderCIDRecord{}, errHeaderHashNotFound
} else if len(headerCIDs) > 1 {
return HeaderCIDRecord{}, errMultipleHeadersForHash
}
return headerCIDs[0], nil
}
// RetrieveTxCIDByHash returns the tx for the given tx hash (and optionally block number)
func (ecr *CIDRetriever) RetrieveTxCIDByHash(txHash string, blockNumber *big.Int) (TransactionCIDRecord, error) {
log.Debug("retrieving tx cid for tx hash ", txHash)
var txCIDs []TransactionCIDRecord
var err error
if blockNumber != nil {
err = ecr.gormDB.Joins("IPLD").Find(&txCIDs, "tx_hash = ? AND transaction_cids.header_id = (SELECT canonical_header_hash(transaction_cids.block_number)) AND transaction_cids.block_number = ?", txHash, blockNumber.Int64()).Error
} else {
err = ecr.gormDB.Joins("IPLD").Find(&txCIDs, "tx_hash = ? AND transaction_cids.header_id = (SELECT canonical_header_hash(transaction_cids.block_number))", txHash).Error
}
if err != nil {
log.Error("tx retrieval error")
return TransactionCIDRecord{}, err
}
if len(txCIDs) == 0 {
return TransactionCIDRecord{}, errTxHashNotFound
} else if len(txCIDs) > 1 {
// a transaction can be part of a only one canonical block
return TransactionCIDRecord{}, errTxHashInMultipleBlocks
}
return txCIDs[0], nil
}