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package main
import (
"context"
"fmt"
"log"
"os"
"time"
"github.com/ethereum-optimism/optimism/op-node/cmd/batch_decoder/fetch"
"github.com/ethereum-optimism/optimism/op-node/cmd/batch_decoder/reassemble"
"github.com/ethereum-optimism/optimism/op-node/rollup/derive"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/ethclient"
"github.com/urfave/cli/v2"
)
func main() {
app := cli.NewApp()
app.Name = "batch-decoder"
app.Usage = "Optimism Batch Decoding Utility"
app.Commands = []*cli.Command{
{
Name: "fetch",
Usage: "Fetches batches in the specified range",
Flags: []cli.Flag{
&cli.IntFlag{
Name: "start",
Required: true,
Usage: "First block (inclusive) to fetch",
},
&cli.IntFlag{
Name: "end",
Required: true,
Usage: "Last block (exclusive) to fetch",
},
&cli.StringFlag{
Name: "inbox",
Required: true,
Usage: "Batch Inbox Address",
},
&cli.StringFlag{
Name: "sender",
Required: true,
Usage: "Batch Sender Address",
},
&cli.StringFlag{
Name: "out",
Value: "/tmp/batch_decoder/transactions_cache",
Usage: "Cache directory for the found transactions",
},
&cli.StringFlag{
Name: "l1",
Required: true,
Usage: "L1 RPC URL",
EnvVars: []string{"L1_RPC"},
},
},
Action: func(cliCtx *cli.Context) error {
client, err := ethclient.Dial(cliCtx.String("l1"))
if err != nil {
log.Fatal(err)
}
ctx, cancel := context.WithTimeout(context.Background(), 3*time.Second)
defer cancel()
chainID, err := client.ChainID(ctx)
if err != nil {
log.Fatal(err)
}
config := fetch.Config{
Start: uint64(cliCtx.Int("start")),
End: uint64(cliCtx.Int("end")),
ChainID: chainID,
BatchSenders: map[common.Address]struct{}{
common.HexToAddress(cliCtx.String("sender")): struct{}{},
},
BatchInbox: common.HexToAddress(cliCtx.String("inbox")),
OutDirectory: cliCtx.String("out"),
}
totalValid, totalInvalid := fetch.Batches(client, config)
fmt.Printf("Fetched batches in range [%v,%v). Found %v valid & %v invalid batches\n", config.Start, config.End, totalValid, totalInvalid)
fmt.Printf("Fetch Config: Chain ID: %v. Inbox Address: %v. Valid Senders: %v.\n", config.ChainID, config.BatchInbox, config.BatchSenders)
fmt.Printf("Wrote transactions with batches to %v\n", config.OutDirectory)
return nil
},
},
{
Name: "reassemble",
Usage: "Reassembles channels from fetched batches",
Flags: []cli.Flag{
&cli.StringFlag{
Name: "inbox",
Value: "0xff00000000000000000000000000000000000420",
Usage: "Batch Inbox Address",
},
&cli.StringFlag{
Name: "in",
Value: "/tmp/batch_decoder/transactions_cache",
Usage: "Cache directory for the found transactions",
},
&cli.StringFlag{
Name: "out",
Value: "/tmp/batch_decoder/channel_cache",
Usage: "Cache directory for the found channels",
},
},
Action: func(cliCtx *cli.Context) error {
config := reassemble.Config{
BatchInbox: common.HexToAddress(cliCtx.String("inbox")),
InDirectory: cliCtx.String("in"),
OutDirectory: cliCtx.String("out"),
}
reassemble.Channels(config)
return nil
},
},
{
Name: "force-close",
Usage: "Create the tx data which will force close a channel",
Flags: []cli.Flag{
&cli.StringFlag{
Name: "id",
Required: true,
Usage: "ID of the channel to close",
},
&cli.StringFlag{
Name: "inbox",
Value: "0x0000000000000000000000000000000000000000",
Usage: "(Optional) Batch Inbox Address",
},
&cli.StringFlag{
Name: "in",
Value: "/tmp/batch_decoder/transactions_cache",
Usage: "Cache directory for the found transactions",
},
},
Action: func(cliCtx *cli.Context) error {
var id derive.ChannelID
if err := (&id).UnmarshalText([]byte(cliCtx.String("id"))); err != nil {
log.Fatal(err)
}
frames := reassemble.LoadFrames(cliCtx.String("in"), common.HexToAddress(cliCtx.String("inbox")))
var filteredFrames []derive.Frame
for _, frame := range frames {
if frame.Frame.ID == id {
filteredFrames = append(filteredFrames, frame.Frame)
}
}
data, err := derive.ForceCloseTxData(filteredFrames)
if err != nil {
log.Fatal(err)
}
fmt.Printf("%x\n", data)
return nil
},
},
}
if err := app.Run(os.Args); err != nil {
log.Fatal(err)
}
}