125 lines
3.8 KiB
Go
125 lines
3.8 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 btc
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import (
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"fmt"
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"strconv"
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"github.com/vulcanize/vulcanizedb/pkg/ipfs/ipld"
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"github.com/vulcanize/vulcanizedb/pkg/postgres"
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"github.com/vulcanize/vulcanizedb/pkg/super_node/shared"
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)
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// IPLDPublisherAndIndexer satisfies the IPLDPublisher interface for bitcoin
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// It interfaces directly with the public.blocks table of PG-IPFS rather than going through an ipfs intermediary
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// It publishes and indexes IPLDs together in a single sqlx.Tx
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type IPLDPublisherAndIndexer struct {
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indexer *CIDIndexer
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}
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// NewIPLDPublisherAndIndexer creates a pointer to a new IPLDPublisherAndIndexer which satisfies the IPLDPublisher interface
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func NewIPLDPublisherAndIndexer(db *postgres.DB) *IPLDPublisherAndIndexer {
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return &IPLDPublisherAndIndexer{
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indexer: NewCIDIndexer(db),
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}
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}
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// Publish publishes an IPLDPayload to IPFS and returns the corresponding CIDPayload
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func (pub *IPLDPublisherAndIndexer) Publish(payload shared.ConvertedData) (shared.CIDsForIndexing, error) {
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ipldPayload, ok := payload.(ConvertedPayload)
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if !ok {
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return nil, fmt.Errorf("btc publisher expected payload type %T got %T", ConvertedPayload{}, payload)
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}
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// Generate the iplds
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headerNode, txNodes, txTrieNodes, err := ipld.FromHeaderAndTxs(ipldPayload.Header, ipldPayload.Txs)
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if err != nil {
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return nil, err
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}
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// Begin new db tx
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tx, err := pub.indexer.db.Beginx()
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if err != nil {
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return nil, 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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// Publish trie nodes
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for _, node := range txTrieNodes {
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if err := shared.PublishIPLD(tx, node); err != nil {
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return nil, err
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}
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}
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// Publish and index header
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if err := shared.PublishIPLD(tx, headerNode); err != nil {
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return nil, err
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}
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header := HeaderModel{
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CID: headerNode.Cid().String(),
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ParentHash: ipldPayload.Header.PrevBlock.String(),
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BlockNumber: strconv.Itoa(int(ipldPayload.BlockPayload.BlockHeight)),
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BlockHash: ipldPayload.Header.BlockHash().String(),
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Timestamp: ipldPayload.Header.Timestamp.UnixNano(),
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Bits: ipldPayload.Header.Bits,
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}
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headerID, err := pub.indexer.indexHeaderCID(tx, header)
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if err != nil {
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return nil, err
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}
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// Publish and index txs
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for i, txNode := range txNodes {
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if err := shared.PublishIPLD(tx, txNode); err != nil {
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return nil, err
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}
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txModel := ipldPayload.TxMetaData[i]
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txModel.CID = txNode.Cid().String()
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txID, err := pub.indexer.indexTransactionCID(tx, txModel, headerID)
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if err != nil {
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return nil, err
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}
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for _, input := range txModel.TxInputs {
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if err := pub.indexer.indexTxInput(tx, input, txID); err != nil {
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return nil, err
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}
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}
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for _, output := range txModel.TxOutputs {
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if err := pub.indexer.indexTxOutput(tx, output, txID); err != nil {
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return nil, err
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}
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}
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}
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// This IPLDPublisher does both publishing and indexing, we do not need to pass anything forward to the indexer
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return nil, err
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}
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// Index satisfies the shared.CIDIndexer interface
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func (pub *IPLDPublisherAndIndexer) Index(cids shared.CIDsForIndexing) error {
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return nil
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}
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