forked from cerc-io/ipld-eth-server
125 lines
4.3 KiB
Go
125 lines
4.3 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 btc
|
|
|
|
import (
|
|
"math/big"
|
|
|
|
"github.com/spf13/viper"
|
|
|
|
"github.com/vulcanize/vulcanizedb/pkg/super_node/shared"
|
|
)
|
|
|
|
/*
|
|
// HeaderModel is the db model for btc.header_cids table
|
|
// TxInput is the db model for btc.tx_inputs table
|
|
type TxInput struct {
|
|
ID int64 `db:"id"`
|
|
TxID int64 `db:"tx_id"`
|
|
Index int64 `db:"index"`
|
|
TxWitness [][]byte `db:"tx_witness"`
|
|
SignatureScript []byte `db:"sig_script"`
|
|
PreviousOutPointHash string `db:"outpoint_hash"`
|
|
PreviousOutPointIndex uint32 `db:"outpoint_index"`
|
|
}
|
|
|
|
// TxOutput is the db model for btc.tx_outputs table
|
|
type TxOutput struct {
|
|
ID int64 `db:"id"`
|
|
TxID int64 `db:"tx_id"`
|
|
Index int64 `db:"index"`
|
|
Value int64 `db:"value"`
|
|
PkScript []byte `db:"pk_script"`
|
|
}
|
|
|
|
*/
|
|
// SubscriptionSettings config is used by a subscriber to specify what bitcoin data to stream from the super node
|
|
type SubscriptionSettings struct {
|
|
BackFill bool
|
|
BackFillOnly bool
|
|
Start *big.Int
|
|
End *big.Int // set to 0 or a negative value to have no ending block
|
|
HeaderFilter HeaderFilter
|
|
TxFilter TxFilter
|
|
}
|
|
|
|
// HeaderFilter contains filter settings for headers
|
|
type HeaderFilter struct {
|
|
Off bool
|
|
}
|
|
|
|
// TxFilter contains filter settings for txs
|
|
type TxFilter struct {
|
|
Off bool
|
|
// Top level trx filters
|
|
Index int64 // allow filtering by index so that we can filter for only coinbase transactions (index 0) if we want to
|
|
Segwit bool // allow filtering for segwit trxs
|
|
WitnessHashes []string // allow filtering for specific witness hashes
|
|
// TODO: trx input filters
|
|
// TODO: trx output filters
|
|
}
|
|
|
|
// Init is used to initialize a EthSubscription struct with env variables
|
|
func NewEthSubscriptionConfig() (*SubscriptionSettings, error) {
|
|
sc := new(SubscriptionSettings)
|
|
// Below default to false, which means we do not backfill by default
|
|
sc.BackFill = viper.GetBool("superNode.btcSubscription.historicalData")
|
|
sc.BackFillOnly = viper.GetBool("superNode.btcSubscription.historicalDataOnly")
|
|
// Below default to 0
|
|
// 0 start means we start at the beginning and 0 end means we continue indefinitely
|
|
sc.Start = big.NewInt(viper.GetInt64("superNode.btcSubscription.startingBlock"))
|
|
sc.End = big.NewInt(viper.GetInt64("superNode.btcSubscription.endingBlock"))
|
|
// Below default to false, which means we get all headers and no uncles by default
|
|
sc.HeaderFilter = HeaderFilter{
|
|
Off: viper.GetBool("superNode.btcSubscription.headerFilter.off"),
|
|
}
|
|
// Below defaults to false and two slices of length 0
|
|
// Which means we get all transactions by default
|
|
sc.TxFilter = TxFilter{
|
|
Off: viper.GetBool("superNode.btcSubscription.txFilter.off"),
|
|
Index: viper.GetInt64("superNode.btcSubscription.txFilter.index"),
|
|
Segwit: viper.GetBool("superNode.btcSubscription.txFilter.segwit"),
|
|
WitnessHashes: viper.GetStringSlice("superNode.btcSubscription.txFilter.witnessHashes"),
|
|
}
|
|
return sc, nil
|
|
}
|
|
|
|
// StartingBlock satisfies the SubscriptionSettings() interface
|
|
func (sc *SubscriptionSettings) StartingBlock() *big.Int {
|
|
return sc.Start
|
|
}
|
|
|
|
// EndingBlock satisfies the SubscriptionSettings() interface
|
|
func (sc *SubscriptionSettings) EndingBlock() *big.Int {
|
|
return sc.End
|
|
}
|
|
|
|
// HistoricalData satisfies the SubscriptionSettings() interface
|
|
func (sc *SubscriptionSettings) HistoricalData() bool {
|
|
return sc.BackFill
|
|
}
|
|
|
|
// HistoricalDataOnly satisfies the SubscriptionSettings() interface
|
|
func (sc *SubscriptionSettings) HistoricalDataOnly() bool {
|
|
return sc.BackFillOnly
|
|
}
|
|
|
|
// ChainType satisfies the SubscriptionSettings() interface
|
|
func (sc *SubscriptionSettings) ChainType() shared.ChainType {
|
|
return shared.Bitcoin
|
|
}
|