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|
package singbox
import (
"encoding/json"
"fmt"
"log"
"os"
"path/filepath"
"slices"
"strings"
"github.com/Loyalsoldier/geoip/lib"
"github.com/sagernet/sing-box/common/srs"
"github.com/sagernet/sing-box/constant"
"github.com/sagernet/sing-box/option"
)
const (
TypeSRSOut = "singboxSRS"
DescSRSOut = "Convert data to sing-box SRS format"
)
var (
defaultOutputDir = filepath.Join("./", "output", "srs")
)
func init() {
lib.RegisterOutputConfigCreator(TypeSRSOut, func(action lib.Action, data json.RawMessage) (lib.OutputConverter, error) {
return NewSRSOutFromBytes(action, data)
})
lib.RegisterOutputConverter(TypeSRSOut, &srs_out{
Description: DescSRSOut,
})
}
type srs_out struct {
Type string
Action lib.Action
Description string
OutputDir string
Want []string
Exclude []string
OnlyIPType lib.IPType
}
func NewSRSOut(action lib.Action, opts ...lib.OutputOption) lib.OutputConverter {
s := &srs_out{
Type: TypeSRSOut,
Action: action,
Description: DescSRSOut,
}
for _, opt := range opts {
if opt != nil {
opt(s)
}
}
return s
}
func WithOutputDir(dir string) lib.OutputOption {
return func(s lib.OutputConverter) {
dir = strings.TrimSpace(dir)
if dir == "" {
dir = defaultOutputDir
}
s.(*srs_out).OutputDir = dir
}
}
func WithOutputWantedList(lists []string) lib.OutputOption {
return func(s lib.OutputConverter) {
s.(*srs_out).Want = lists
}
}
func WithOutputExcludedList(lists []string) lib.OutputOption {
return func(s lib.OutputConverter) {
s.(*srs_out).Exclude = lists
}
}
func WithOutputOnlyIPType(onlyIPType lib.IPType) lib.OutputOption {
return func(s lib.OutputConverter) {
s.(*srs_out).OnlyIPType = onlyIPType
}
}
func NewSRSOutFromBytes(action lib.Action, data []byte) (lib.OutputConverter, error) {
var tmp struct {
OutputDir string `json:"outputDir"`
Want []string `json:"wantedList"`
Exclude []string `json:"excludedList"`
OnlyIPType lib.IPType `json:"onlyIPType"`
}
if len(data) > 0 {
if err := json.Unmarshal(data, &tmp); err != nil {
return nil, err
}
}
return NewSRSOut(
action,
WithOutputDir(tmp.OutputDir),
WithOutputWantedList(tmp.Want),
WithOutputExcludedList(tmp.Exclude),
WithOutputOnlyIPType(tmp.OnlyIPType),
), nil
}
func (s *srs_out) GetType() string {
return s.Type
}
func (s *srs_out) GetAction() lib.Action {
return s.Action
}
func (s *srs_out) GetDescription() string {
return s.Description
}
func (s *srs_out) Output(container lib.Container) error {
for _, name := range s.filterAndSortList(container) {
entry, found := container.GetEntry(name)
if !found {
log.Printf("❌ entry %s not found\n", name)
continue
}
if err := s.generate(entry); err != nil {
return err
}
}
return nil
}
func (s *srs_out) filterAndSortList(container lib.Container) []string {
excludeMap := make(map[string]bool)
for _, exclude := range s.Exclude {
if exclude = strings.ToUpper(strings.TrimSpace(exclude)); exclude != "" {
excludeMap[exclude] = true
}
}
wantList := make([]string, 0, len(s.Want))
for _, want := range s.Want {
if want = strings.ToUpper(strings.TrimSpace(want)); want != "" && !excludeMap[want] {
wantList = append(wantList, want)
}
}
if len(wantList) > 0 {
// Sort the list
slices.Sort(wantList)
return wantList
}
list := make([]string, 0, 300)
for entry := range container.Loop() {
name := entry.GetName()
if excludeMap[name] {
continue
}
list = append(list, name)
}
// Sort the list
slices.Sort(list)
return list
}
func (s *srs_out) generate(entry *lib.Entry) error {
ruleset, err := s.marshalRuleSet(entry)
if err != nil {
return err
}
filename := strings.ToLower(entry.GetName()) + ".srs"
if err := s.writeFile(filename, ruleset); err != nil {
return err
}
return nil
}
func (s *srs_out) marshalRuleSet(entry *lib.Entry) (*option.PlainRuleSet, error) {
entryCidr, err := entry.MarshalText(lib.GetIgnoreIPType(s.OnlyIPType))
if err != nil {
return nil, err
}
var headlessRule option.DefaultHeadlessRule
headlessRule.IPCIDR = entryCidr
var plainRuleSet option.PlainRuleSet
plainRuleSet.Rules = []option.HeadlessRule{
{
Type: constant.RuleTypeDefault,
DefaultOptions: headlessRule,
},
}
if len(headlessRule.IPCIDR) > 0 {
return &plainRuleSet, nil
}
return nil, fmt.Errorf("❌ [type %s | action %s] entry %s has no CIDR", s.Type, s.Action, entry.GetName())
}
func (s *srs_out) writeFile(filename string, ruleset *option.PlainRuleSet) error {
if err := os.MkdirAll(s.OutputDir, 0755); err != nil {
return err
}
f, err := os.Create(filepath.Join(s.OutputDir, filename))
if err != nil {
return err
}
defer f.Close()
err = srs.Write(f, *ruleset, constant.RuleSetVersion1)
if err != nil {
return err
}
log.Printf("✅ [%s] %s --> %s", s.Type, filename, s.OutputDir)
return nil
}
|
