133 lines
4.4 KiB
Go
133 lines
4.4 KiB
Go
// Copyright © 2020 Vulcanize, Inc
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//
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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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//
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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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//
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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 snapshot
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import (
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"bytes"
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"github.com/ethereum/go-ethereum/core/types"
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"github.com/multiformats/go-multihash"
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"github.com/vulcanize/ipfs-blockchain-watcher/pkg/ipfs/ipld"
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"github.com/vulcanize/ipfs-blockchain-watcher/pkg/postgres"
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"github.com/vulcanize/ipfs-blockchain-watcher/pkg/shared"
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)
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type Publisher struct {
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db *postgres.DB
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}
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func NewPublisher(db *postgres.DB) *Publisher {
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return &Publisher{
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db: db,
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}
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}
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func (p *Publisher) PublishHeader(header *types.Header) (int64, error) {
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headerNode, err := ipld.NewEthHeader(header)
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if err != nil {
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return 0, err
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}
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tx, err := p.db.Beginx()
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if err != nil {
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return 0, err
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}
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defer func() {
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if p := recover(); p != nil {
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shared.Rollback(tx)
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panic(p)
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} else if err != nil {
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shared.Rollback(tx)
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} else {
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err = tx.Commit()
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}
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}()
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if err := shared.PublishIPLD(tx, headerNode); err != nil {
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return 0, err
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}
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mhKey, _ := shared.MultihashKeyFromCIDString(headerNode.Cid().String())
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var headerID int64
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err = tx.QueryRowx(`INSERT INTO eth.header_cids (block_number, block_hash, parent_hash, cid, td, node_id, reward, state_root, tx_root, receipt_root, uncle_root, bloom, timestamp, mh_key, times_validated)
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VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11, $12, $13, $14, $15)
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ON CONFLICT (block_number, block_hash) DO UPDATE SET block_number = header_cids.block_number
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RETURNING id`,
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header.Number.Uint64(), header.Hash().Hex(), header.ParentHash.Hex(), headerNode.Cid().String(), "0", p.db.NodeID, "0", header.Root.Hex(), header.TxHash.Hex(),
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header.ReceiptHash.Hex(), header.UncleHash.Hex(), header.Bloom.Bytes(), header.Time, mhKey, 0).Scan(&headerID)
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return headerID, err
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}
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func (p *Publisher) PublishStateNode(node Node, headerID int64) (int64, error) {
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var stateID int64
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var stateKey string
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if !bytes.Equal(node.Key.Bytes(), nullHash.Bytes()) {
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stateKey = node.Key.Hex()
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}
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tx, err := p.db.Beginx()
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if err != nil {
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return 0, err
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}
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defer func() {
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if p := recover(); p != nil {
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shared.Rollback(tx)
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panic(p)
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} else if err != nil {
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shared.Rollback(tx)
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} else {
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err = tx.Commit()
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}
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}()
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stateCIDStr, err := shared.PublishRaw(tx, ipld.MEthStateTrie, multihash.KECCAK_256, node.Value)
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if err != nil {
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return 0, err
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}
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mhKey, _ := shared.MultihashKeyFromCIDString(stateCIDStr)
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err = tx.QueryRowx(`INSERT INTO eth.state_cids (header_id, state_leaf_key, cid, state_path, node_type, diff, mh_key) VALUES ($1, $2, $3, $4, $5, $6, $7)
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ON CONFLICT (header_id, state_path, diff) DO UPDATE SET (state_leaf_key, cid, node_type, mh_key) = ($2, $3, $5, $7)
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RETURNING id`,
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headerID, stateKey, stateCIDStr, node.Path, node.NodeType, false, mhKey).Scan(&stateID)
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return stateID, err
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}
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func (p *Publisher) PublishStorageNode(node Node, stateID int64) error {
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var storageKey string
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if !bytes.Equal(node.Key.Bytes(), nullHash.Bytes()) {
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storageKey = node.Key.Hex()
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}
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tx, err := p.db.Beginx()
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if err != nil {
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return err
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}
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defer func() {
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if p := recover(); p != nil {
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shared.Rollback(tx)
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panic(p)
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} else if err != nil {
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shared.Rollback(tx)
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} else {
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err = tx.Commit()
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}
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}()
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storageCIDStr, err := shared.PublishRaw(tx, ipld.MEthStorageTrie, multihash.KECCAK_256, node.Value)
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if err != nil {
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return err
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}
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mhKey, _ := shared.MultihashKeyFromCIDString(storageCIDStr)
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_, err = tx.Exec(`INSERT INTO eth.storage_cids (state_id, storage_leaf_key, cid, storage_path, node_type, diff, mh_key) VALUES ($1, $2, $3, $4, $5, $6, $7)
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ON CONFLICT (state_id, storage_path) DO UPDATE SET (storage_leaf_key, cid, node_type, diff, mh_key) = ($2, $3, $5, $6, $7)`,
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stateID, storageKey, storageCIDStr, node.Path, node.NodeType, false, mhKey)
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return err
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}
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