ipld-eth-server/pkg/eth/ipld_retriever.go

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2020-09-24 21:38:09 +00:00
// 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"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/crypto"
"github.com/ethereum/go-ethereum/rlp"
"github.com/lib/pq"
"github.com/vulcanize/ipld-eth-indexer/pkg/postgres"
)
const (
RetrieveHeadersByHashesPgStr = `SELECT cid, data FROM eth.header_cids
INNER JOIN public.blocks ON (header_cids.mh_key = blocks.key)
WHERE block_hash = ANY($1::VARCHAR(66)[])`
RetrieveHeadersByBlockNumberPgStr = `SELECT cid, data FROM eth.header_cids
INNER JOIN public.blocks ON (header_cids.mh_key = blocks.key)
WHERE block_number = $1`
RetrieveHeaderByHashPgStr = `SELECT cid, data FROM eth.header_cids
INNER JOIN public.blocks ON (header_cids.mh_key = blocks.key)
WHERE block_hash = $1`
RetrieveUnclesByHashesPgStr = `SELECT cid, data FROM eth.uncle_cids
INNER JOIN public.blocks ON (uncle_cids.mh_key = blocks.key)
WHERE block_hash = ANY($1::VARCHAR(66)[])`
RetrieveUnclesByBlockHashPgStr = `SELECT cid, data FROM eth.uncle_cids, eth.header_cids, public.blocks
WHERE uncle_cids.header_id = header_cids.id
AND uncle_cids.mh_key = blocks.key
AND block_hash = $1`
RetrieveUnclesByBlockNumberPgStr = `SELECT cid, data FROM eth.uncle_cids, eth.header_cids, public.blocks
WHERE uncle_cids.header_id = header_cids.id
AND uncle_cids.mh_key = blocks.key
AND block_number = $1`
RetrieveUncleByHashPgStr = `SELECT cid, data FROM eth.uncle_cids
INNER JOIN public.blocks ON (uncle_cids.mh_key = blocks.key)
WHERE block_hash = $1`
RetrieveTransactionsByHashesPgStr = `SELECT cid, data FROM eth.transaction_cids
INNER JOIN public.blocks ON (transaction_cids.mh_key = blocks.key)
WHERE tx_hash = ANY($1::VARCHAR(66)[])`
RetrieveTransactionsByBlockHashPgStr = `SELECT cid, data FROM eth.transaction_cids, eth.header_cids, public.blocks
WHERE transaction_cids.header_id = header_cids.id
AND transaction_cids.mh_key = blocks.key
AND block_hash = $1`
RetrieveTransactionsByBlockNumberPgStr = `SELECT cid, data FROM eth.transaction_cids, eth.header_cids, public.blocks
WHERE transaction_cids.header_id = header_cids.id
AND transaction_cids.mh_key = blocks.key
AND block_number = $1`
RetrieveTransactionByHashPgStr = `SELECT cid, data FROM eth.transaction_cids
INNER JOIN public.blocks ON (transaction_cids.mh_key = blocks.key)
WHERE tx_hash = $1`
RetrieveReceiptsByTxHashesPgStr = `SELECT cid, data FROM eth.receipt_cids, eth.transaction_cids, public.blocks
WHERE receipt_cids.mh_key = blocks.key
AND receipt_cids.tx_id = transaction_cids.id
AND tx_hash = ANY($1::VARCHAR(66)[])`
RetrieveReceiptsByBlockHashPgStr = `SELECT cid, data FROM eth.receipt_cids, eth.transaction_cids, eth.header_cids, public.blocks
WHERE receipt_cids.tx_id = transaction_cids.id
AND transaction_cids.header_id = header_cids.id
AND receipt_cids.mh_key = blocks.key
AND block_hash = $1`
RetrieveReceiptsByBlockNumberPgStr = `SELECT cid, data FROM eth.receipt_cids, eth.transaction_cids, eth.header_cids, public.blocks
WHERE receipt_cids.tx_id = transaction_cids.id
AND transaction_cids.header_id = header_cids.id
AND receipt_cids.mh_key = blocks.key
AND block_number = $1`
RetrieveReceiptByTxHashPgStr = `SELECT cid, data FROM eth.receipt_cids, eth.transaction_cids, eth.receipt_cids
WHERE receipt_cids.mh_key = blocks.key
AND receipt_cids.tx_id = transaction_cids.id
AND tx_hash = $1`
RetrieveAccountByLeafKeyAndBlockHashPgStr = `SELECT cid, data FROM eth.state_cids, eth.header_cids, public.blocks
WHERE state_cids.header_id = header_cids.id
AND state_cids.mh_key = blocks.key
AND state_leaf_key = $1
AND block_hash = $2`
RetrieveAccountByLeafKeyAndBlockNumberPgStr = `SELECT cid, data FROM eth.state_cids, eth.header_cids, public.blocks
WHERE state_cids.header_id = header_cids.id
AND state_cids.mh_key = blocks.key
AND state_leaf_key = $1
AND block_number = $2`
)
type ipldResult struct {
cid string `db:"cid"`
data []byte `db:"data"`
}
type IPLDRetriever struct {
db *postgres.DB
}
func NewIPLDRetriever(db *postgres.DB) *IPLDRetriever {
return &IPLDRetriever{
db: db,
}
}
// RetrieveHeadersByHashes returns the cids and rlp bytes for the headers corresponding to the provided block hashes
func (r *IPLDRetriever) RetrieveHeadersByHashes(hashes []common.Hash) ([]string, [][]byte, error) {
headerResults := make([]ipldResult, 0)
hashStrs := make([]string, len(hashes))
for i, hash := range hashes {
hashStrs[i] = hash.Hex()
}
if err := r.db.Select(&headerResults, RetrieveHeadersByHashesPgStr, pq.Array(hashStrs)); err != nil {
return nil, nil, err
}
cids := make([]string, len(headerResults))
headers := make([][]byte, len(headerResults))
for i, res := range headerResults {
cids[i] = res.cid
headers[i] = res.data
}
return cids, headers, nil
}
// RetrieveHeadersByBlockNumber returns the cids and rlp bytes for the headers corresponding to the provided block number
// This can return more than one result since there can be more than one header (non-canonical headers)
func (r *IPLDRetriever) RetrieveHeadersByBlockNumber(number uint64) ([]string, [][]byte, error) {
headerResults := make([]ipldResult, 0)
if err := r.db.Select(&headerResults, RetrieveHeadersByBlockNumberPgStr, number); err != nil {
return nil, nil, err
}
cids := make([]string, len(headerResults))
headers := make([][]byte, len(headerResults))
for i, res := range headerResults {
cids[i] = res.cid
headers[i] = res.data
}
return cids, headers, nil
}
// RetrieveHeaderByHash returns the cid and rlp bytes for the header corresponding to the provided block hash
func (r *IPLDRetriever) RetrieveHeaderByHash(hash common.Hash) (string, []byte, error) {
headerResult := new(ipldResult)
return headerResult.cid, headerResult.data, r.db.Get(headerResult, RetrieveHeaderByHashPgStr, hash.Hex())
}
// RetrieveUnclesByHashes returns the cids and rlp bytes for the uncles corresponding to the provided uncle hashes
func (r *IPLDRetriever) RetrieveUnclesByHashes(hashes []common.Hash) ([]string, [][]byte, error) {
uncleResults := make([]ipldResult, 0)
hashStrs := make([]string, len(hashes))
for i, hash := range hashes {
hashStrs[i] = hash.Hex()
}
if err := r.db.Select(&uncleResults, RetrieveUnclesByHashesPgStr, pq.Array(hashStrs)); err != nil {
return nil, nil, err
}
cids := make([]string, len(uncleResults))
uncles := make([][]byte, len(uncleResults))
for i, res := range uncleResults {
cids[i] = res.cid
uncles[i] = res.data
}
return cids, uncles, nil
}
// RetrieveUnclesByBlockHash returns the cids and rlp bytes for the uncles corresponding to the provided block hash (of non-omner root block)
func (r *IPLDRetriever) RetrieveUnclesByBlockHash(hash common.Hash) ([]string, [][]byte, error) {
uncleResults := make([]ipldResult, 0)
if err := r.db.Select(&uncleResults, RetrieveUnclesByBlockHashPgStr, hash.Hex()); err != nil {
return nil, nil, err
}
cids := make([]string, len(uncleResults))
uncles := make([][]byte, len(uncleResults))
for i, res := range uncleResults {
cids[i] = res.cid
uncles[i] = res.data
}
return cids, uncles, nil
}
// RetrieveUnclesByBlockNumber returns the cids and rlp bytes for the uncles corresponding to the provided block number (of non-omner root block)
func (r *IPLDRetriever) RetrieveUnclesByBlockNumber(number uint64) ([]string, [][]byte, error) {
uncleResults := make([]ipldResult, 0)
if err := r.db.Select(&uncleResults, RetrieveUnclesByBlockNumberPgStr, number); err != nil {
return nil, nil, err
}
cids := make([]string, len(uncleResults))
uncles := make([][]byte, len(uncleResults))
for i, res := range uncleResults {
cids[i] = res.cid
uncles[i] = res.data
}
return cids, uncles, nil
}
// RetrieveUncleByHash returns the cid and rlp bytes for the uncle corresponding to the provided uncle hash
func (r *IPLDRetriever) RetrieveUncleByHash(hash common.Hash) (string, []byte, error) {
uncleResult := new(ipldResult)
return uncleResult.cid, uncleResult.data, r.db.Get(uncleResult, RetrieveUncleByHashPgStr, hash.Hex())
}
// RetrieveTransactionsByHashes returns the cids and rlp bytes for the transactions corresponding to the provided tx hashes
func (r *IPLDRetriever) RetrieveTransactionsByHashes(hashes []common.Hash) ([]string, [][]byte, error) {
txResults := make([]ipldResult, 0)
hashStrs := make([]string, len(hashes))
for i, hash := range hashes {
hashStrs[i] = hash.Hex()
}
if err := r.db.Select(&txResults, RetrieveTransactionsByHashesPgStr, pq.Array(hashStrs)); err != nil {
return nil, nil, err
}
cids := make([]string, len(txResults))
txs := make([][]byte, len(txResults))
for i, res := range txResults {
cids[i] = res.cid
txs[i] = res.data
}
return cids, txs, nil
}
// RetrieveTransactionsByBlockHash returns the cids and rlp bytes for the transactions corresponding to the provided block hash
func (r *IPLDRetriever) RetrieveTransactionsByBlockHash(hash common.Hash) ([]string, [][]byte, error) {
txResults := make([]ipldResult, 0)
if err := r.db.Select(&txResults, RetrieveTransactionsByBlockHashPgStr, hash.Hex()); err != nil {
return nil, nil, err
}
cids := make([]string, len(txResults))
txs := make([][]byte, len(txResults))
for i, res := range txResults {
cids[i] = res.cid
txs[i] = res.data
}
return cids, txs, nil
}
// RetrieveTransactionsByBlockNumber returns the cids and rlp bytes for the transactions corresponding to the provided block number
func (r *IPLDRetriever) RetrieveTransactionsByBlockNumber(number uint64) ([]string, [][]byte, error) {
txResults := make([]ipldResult, 0)
if err := r.db.Select(&txResults, RetrieveTransactionsByBlockNumberPgStr, number); err != nil {
return nil, nil, err
}
cids := make([]string, len(txResults))
txs := make([][]byte, len(txResults))
for i, res := range txResults {
cids[i] = res.cid
txs[i] = res.data
}
return cids, txs, nil
}
// RetrieveTransactionByTxHash returns the cid and rlp bytes for the transaction corresponding to the provided tx hash
func (r *IPLDRetriever) RetrieveTransactionByTxHash(hash common.Hash) (string, []byte, error) {
txResult := new(ipldResult)
return txResult.cid, txResult.data, r.db.Get(txResult, RetrieveTransactionByHashPgStr, hash.Hex())
}
// RetrieveReceiptsByTxHashes returns the cids and rlp bytes for the receipts corresponding to the provided tx hashes
func (r *IPLDRetriever) RetrieveReceiptsByTxHashes(hashes []common.Hash) ([]string, [][]byte, error) {
rctResults := make([]ipldResult, 0)
hashStrs := make([]string, len(hashes))
for i, hash := range hashes {
hashStrs[i] = hash.Hex()
}
if err := r.db.Select(&rctResults, RetrieveReceiptsByTxHashesPgStr, pq.Array(hashStrs)); err != nil {
return nil, nil, err
}
cids := make([]string, len(rctResults))
rcts := make([][]byte, len(rctResults))
for i, res := range rctResults {
cids[i] = res.cid
rcts[i] = res.data
}
return cids, rcts, nil
}
// RetrieveReceiptsByBlockHash returns the cids and rlp bytes for the receipts corresponding to the provided block hash
func (r *IPLDRetriever) RetrieveReceiptsByBlockHash(hash common.Hash) ([]string, [][]byte, error) {
rctResults := make([]ipldResult, 0)
if err := r.db.Select(&rctResults, RetrieveReceiptsByBlockHashPgStr, hash.Hex()); err != nil {
return nil, nil, err
}
cids := make([]string, len(rctResults))
rcts := make([][]byte, len(rctResults))
for i, res := range rctResults {
cids[i] = res.cid
rcts[i] = res.data
}
return cids, rcts, nil
}
// RetrieveReceiptsByBlockNumber returns the cids and rlp bytes for the receipts corresponding to the provided block hash
func (r *IPLDRetriever) RetrieveReceiptsByBlockNumber(number uint64) ([]string, [][]byte, error) {
rctResults := make([]ipldResult, 0)
if err := r.db.Select(&rctResults, RetrieveReceiptsByBlockNumberPgStr, number); err != nil {
return nil, nil, err
}
cids := make([]string, len(rctResults))
rcts := make([][]byte, len(rctResults))
for i, res := range rctResults {
cids[i] = res.cid
rcts[i] = res.data
}
return cids, rcts, nil
}
// RetrieveReceiptByHash returns the cid and rlp bytes for the receipt corresponding to the provided tx hash
func (r *IPLDRetriever) RetrieveReceiptByHash(hash common.Hash) (string, []byte, error) {
rctResult := new(ipldResult)
return rctResult.cid, rctResult.data, r.db.Get(rctResult, RetrieveReceiptByTxHashPgStr, hash.Hex())
}
// RetrieveAccountByAddressAndBlockHash returns the cid and rlp bytes for the account corresponding to the provided address and block hash
func (r *IPLDRetriever) RetrieveAccountByAddressAndBlockHash(address common.Address, hash common.Hash) (string, []byte, error) {
accountResult := new(ipldResult)
leafKey := crypto.Keccak256Hash(address.Bytes())
if err := r.db.Get(accountResult, RetrieveAccountByLeafKeyAndBlockHashPgStr, leafKey.Hex(), hash.Hex()); err != nil {
return "", nil, err
}
var i []interface{}
if err := rlp.DecodeBytes(accountResult.data, &i); err != nil {
return "", nil, fmt.Errorf("error decoding state leaf node rlp: %s", err.Error())
}
if len(i) != 2 {
return "", nil, fmt.Errorf("eth IPLDRetriever expected state leaf node rlp to decode into two elements")
}
return accountResult.cid, i[1].([]byte), nil
}
// RetrieveAccountByAddressAndBlockNumber returns the cid and rlp bytes for the account corresponding to the provided address and block number
// This can return multiple results if we have two versions of state in the database as the provided height
func (r *IPLDRetriever) RetrieveAccountByAddressAndBlockNumber(address common.Address, number uint64) ([]string, [][]byte, error) {
accountResults := make([]ipldResult, 0)
leafKey := crypto.Keccak256Hash(address.Bytes())
if err := r.db.Get(&accountResults, RetrieveAccountByLeafKeyAndBlockNumberPgStr, leafKey.Hex(), number); err != nil {
return nil, nil, err
}
cids := make([]string, len(accountResults))
accounts := make([][]byte, len(accountResults))
for i, res := range accountResults {
cids[i] = res.cid
var iface []interface{}
if err := rlp.DecodeBytes(res.data, &iface); err != nil {
return nil, nil, fmt.Errorf("error decoding state leaf node rlp: %s", err.Error())
}
if len(iface) != 2 {
return nil, nil, fmt.Errorf("eth IPLDRetriever expected state leaf node rlp to decode into two elements")
}
accounts[i] = iface[1].([]byte)
}
return cids, accounts, nil
}