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|
package special
import (
"encoding/json"
"github.com/Loyalsoldier/geoip/lib"
)
const (
entryNamePrivate = "private"
TypePrivate = "private"
DescPrivate = "Convert LAN and private network CIDR to other formats"
)
var privateCIDRs = []string{
"0.0.0.0/8",
"10.0.0.0/8",
"100.64.0.0/10",
"127.0.0.0/8",
"169.254.0.0/16",
"172.16.0.0/12",
"192.0.0.0/24",
"192.0.2.0/24",
"192.88.99.0/24",
"192.168.0.0/16",
"198.18.0.0/15",
"198.51.100.0/24",
"203.0.113.0/24",
"224.0.0.0/4",
"240.0.0.0/4",
"255.255.255.255/32",
"::/128",
"::1/128",
"fc00::/7",
"ff00::/8",
"fe80::/10",
}
func init() {
lib.RegisterInputConfigCreator(TypePrivate, func(action lib.Action, data json.RawMessage) (lib.InputConverter, error) {
return NewPrivateFromBytes(action, data)
})
lib.RegisterInputConverter(TypePrivate, &private{
Description: DescPrivate,
})
}
type private struct {
Type string
Action lib.Action
Description string
OnlyIPType lib.IPType
}
func NewPrivate(action lib.Action, opts ...lib.InputOption) lib.InputConverter {
p := &private{
Type: TypePrivate,
Action: action,
Description: DescPrivate,
}
for _, opt := range opts {
if opt != nil {
opt(p)
}
}
return p
}
func WithPrivateOnlyIPType(onlyIPType lib.IPType) lib.InputOption {
return func(p lib.InputConverter) {
p.(*private).OnlyIPType = onlyIPType
}
}
func NewPrivateFromBytes(action lib.Action, data []byte) (lib.InputConverter, error) {
var tmp struct {
OnlyIPType lib.IPType `json:"onlyIPType"`
}
if len(data) > 0 {
if err := json.Unmarshal(data, &tmp); err != nil {
return nil, err
}
}
return NewPrivate(
action,
WithPrivateOnlyIPType(tmp.OnlyIPType),
), nil
}
func (p *private) GetType() string {
return p.Type
}
func (p *private) GetAction() lib.Action {
return p.Action
}
func (p *private) GetDescription() string {
return p.Description
}
func (p *private) Input(container lib.Container) (lib.Container, error) {
entry, found := container.GetEntry(entryNamePrivate)
if !found {
entry = lib.NewEntry(entryNamePrivate)
}
for _, cidr := range privateCIDRs {
if err := entry.AddPrefix(cidr); err != nil {
return nil, err
}
}
ignoreIPType := lib.GetIgnoreIPType(p.OnlyIPType)
switch p.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
}
|
