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|
package special
import (
"bufio"
"encoding/json"
"fmt"
"os"
"strings"
"github.com/Loyalsoldier/geoip/lib"
)
const (
TypeStdin = "stdin"
DescStdin = "Accept plaintext IP & CIDR from standard input, separated by newline"
)
func init() {
lib.RegisterInputConfigCreator(TypeStdin, func(action lib.Action, data json.RawMessage) (lib.InputConverter, error) {
return newStdin(action, data)
})
lib.RegisterInputConverter(TypeStdin, &Stdin{
Description: DescStdin,
})
}
func newStdin(action lib.Action, data json.RawMessage) (lib.InputConverter, error) {
var tmp struct {
Name string `json:"name"`
OnlyIPType lib.IPType `json:"onlyIPType"`
}
if len(data) > 0 {
if err := json.Unmarshal(data, &tmp); err != nil {
return nil, err
}
}
if tmp.Name == "" {
return nil, fmt.Errorf("❌ [type %s | action %s] missing name", TypeStdin, action)
}
return &Stdin{
Type: TypeStdin,
Action: action,
Description: DescStdin,
Name: tmp.Name,
OnlyIPType: tmp.OnlyIPType,
}, nil
}
type Stdin struct {
Type string
Action lib.Action
Description string
Name string
OnlyIPType lib.IPType
}
func (s *Stdin) GetType() string {
return s.Type
}
func (s *Stdin) GetAction() lib.Action {
return s.Action
}
func (s *Stdin) GetDescription() string {
return s.Description
}
func (s *Stdin) Input(container lib.Container) (lib.Container, error) {
entry := lib.NewEntry(s.Name)
scanner := bufio.NewScanner(os.Stdin)
for scanner.Scan() {
line := strings.TrimSpace(scanner.Text())
if line == "" {
continue
}
line, _, _ = strings.Cut(line, "#")
line, _, _ = strings.Cut(line, "//")
line, _, _ = strings.Cut(line, "/*")
line = strings.TrimSpace(line)
if line == "" {
continue
}
if err := entry.AddPrefix(line); err != nil {
continue
}
}
if err := scanner.Err(); err != nil {
return nil, err
}
ignoreIPType := lib.GetIgnoreIPType(s.OnlyIPType)
switch s.Action {
case lib.ActionAdd:
if err := container.Add(entry, ignoreIPType); err != nil {
return nil, err
}
case lib.ActionRemove:
if err := container.Remove(entry, lib.CaseRemovePrefix, ignoreIPType); err != nil {
return nil, err
}
default:
return nil, lib.ErrUnknownAction
}
return container, nil
}
|
