otterscan/cmd/rpcdaemon/cli/rpc_allow_list.go

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2022-10-25 01:58:24 +00:00
package cli
import (
"encoding/json"
"io"
"os"
"strings"
"github.com/ledgerwatch/erigon/rpc"
)
type allowListFile struct {
Allow rpc.AllowList `json:"allow"`
}
func parseAllowListForRPC(path string) (rpc.AllowList, error) {
path = strings.TrimSpace(path)
if path == "" { // no file is provided
return nil, nil
}
file, err := os.Open(path)
if err != nil {
return nil, err
}
defer func() {
file.Close() //nolint: errcheck
}()
fileContents, err := io.ReadAll(file)
if err != nil {
return nil, err
}
var allowListFileObj allowListFile
err = json.Unmarshal(fileContents, &allowListFileObj)
if err != nil {
return nil, err
}
return allowListFileObj.Allow, nil
}