optimism_portal.go

indexer/processor/optimism_portal.go

+package processor
+
+import (
+	"context"
+	"math/big"
+
+	"github.com/ethereum-optimism/optimism/indexer/database"
+	"github.com/ethereum-optimism/optimism/op-bindings/bindings"
+
+	"github.com/ethereum/go-ethereum"
+	"github.com/ethereum/go-ethereum/common"
+	"github.com/ethereum/go-ethereum/ethclient"
+)
+
+type OptimismPortalWithdrawalProvenEvent struct {
+	*bindings.OptimismPortalWithdrawalProven
+
+	RawEvent *database.ContractEvent
+}
+
+type OptimismPortalProvenWithdrawal struct {
+	OutputRoot    [32]byte
+	Timestamp     *big.Int
+	L2OutputIndex *big.Int
+}
+
+func OptimismPortalWithdrawalProvenEvents(events *ProcessedContractEvents) ([]OptimismPortalWithdrawalProvenEvent, error) {
+	optimismPortalAbi, err := bindings.OptimismPortalMetaData.GetAbi()
+	if err != nil {
+		return nil, err
+	}
+
+	processedWithdrawalProvenEvents := events.eventsBySignature[optimismPortalAbi.Events["WithdrawalProven"].ID]
+	provenEvents := make([]OptimismPortalWithdrawalProvenEvent, len(processedWithdrawalProvenEvents))
+	for i, provenEvent := range processedWithdrawalProvenEvents {
+
+		provenEvents[i] = OptimismPortalWithdrawalProvenEvent{nil, provenEvent}
+	}
+
+	return provenEvents, nil
+}
+
+func OptimismPortalQueryProvenWithdrawal(ethClient *ethclient.Client, portalAddress common.Address, withdrawalHash common.Hash) (OptimismPortalProvenWithdrawal, error) {
+	var provenWithdrawal OptimismPortalProvenWithdrawal
+
+	optimismPortalAbi, err := bindings.OptimismPortalMetaData.GetAbi()
+	if err != nil {
+		return provenWithdrawal, err
+	}
+
+	name := "provenWithdrawals"
+	txData, err := optimismPortalAbi.Pack(name, withdrawalHash)
+	if err != nil {
+		return provenWithdrawal, err
+	}
+
+	callMsg := ethereum.CallMsg{To: &portalAddress, Data: txData}
+	data, err := ethClient.CallContract(context.Background(), callMsg, nil)
+	if err != nil {
+		return provenWithdrawal, err
+	}
+
+	err = optimismPortalAbi.UnpackIntoInterface(&provenWithdrawal, name, data)
+	if err != nil {
+		return provenWithdrawal, err
+	}
+
+	return provenWithdrawal, nil
+}