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package proposer
import (
"context"
"fmt"
"time"
"github.com/ethereum-optimism/optimism/op-node/client"
"github.com/ethereum-optimism/optimism/op-node/sources"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/ethclient"
"github.com/ethereum/go-ethereum/rpc"
)
var defaultDialTimeout = 5 * time.Second
// dialEthClientWithTimeout attempts to dial the L1 provider using the provided
// URL. If the dial doesn't complete within defaultDialTimeout seconds, this
// method will return an error.
func dialEthClientWithTimeout(ctx context.Context, url string) (*ethclient.Client, error) {
ctxt, cancel := context.WithTimeout(ctx, defaultDialTimeout)
defer cancel()
return ethclient.DialContext(ctxt, url)
}
// dialRollupClientWithTimeout attempts to dial the RPC provider using the provided
// URL. If the dial doesn't complete within defaultDialTimeout seconds, this
// method will return an error.
func dialRollupClientWithTimeout(ctx context.Context, url string) (*sources.RollupClient, error) {
ctxt, cancel := context.WithTimeout(ctx, defaultDialTimeout)
defer cancel()
rpcCl, err := rpc.DialContext(ctxt, url)
if err != nil {
return nil, err
}
return sources.NewRollupClient(client.NewBaseRPCClient(rpcCl)), nil
}
// parseAddress parses an ETH address from a hex string. This method will fail if
// the address is not a valid hexadecimal address.
func parseAddress(address string) (common.Address, error) {
if common.IsHexAddress(address) {
return common.HexToAddress(address), nil
}
return common.Address{}, fmt.Errorf("invalid address: %v", address)
}