mirror of
https://github.com/nitezs/sub2sing-box.git
synced 2024-12-23 15:24:42 -05:00
348 lines
8.4 KiB
Go
Executable File
348 lines
8.4 KiB
Go
Executable File
package common
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import (
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"encoding/json"
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"errors"
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"fmt"
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"os"
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"path/filepath"
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"regexp"
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"sort"
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"strings"
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"github.com/nitezs/sub2sing-box/constant"
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C "github.com/nitezs/sub2sing-box/constant"
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"github.com/nitezs/sub2sing-box/model"
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"github.com/nitezs/sub2sing-box/parser"
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"github.com/nitezs/sub2sing-box/util"
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"github.com/sagernet/sing-box/option"
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)
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func Convert(
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subscriptions []string,
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proxies []string,
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templatePath string,
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delete string,
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rename map[string]string,
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enableGroup bool,
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groupType string,
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sortKey string,
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sortType string,
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) (string, error) {
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result := ""
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var err error
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outbounds, err := ConvertSubscriptionsToSProxy(subscriptions)
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if err != nil {
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return "", err
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}
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for _, proxy := range proxies {
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p, err := ConvertCProxyToSProxy(proxy)
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if err != nil {
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return "", err
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}
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outbounds = append(outbounds, p)
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}
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if delete != "" {
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outbounds, err = DeleteProxy(outbounds, delete)
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if err != nil {
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return "", err
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}
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}
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for k, v := range rename {
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outbounds, err = RenameProxy(outbounds, k, v)
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if err != nil {
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return "", err
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}
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}
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keep := make(map[int]bool)
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set := make(map[string]struct {
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Proxy model.Outbound
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Count int
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})
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for i, p := range outbounds {
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if _, exists := set[p.Tag]; !exists {
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keep[i] = true
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set[p.Tag] = struct {
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Proxy model.Outbound
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Count int
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}{p, 0}
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} else {
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p1, _ := json.Marshal(p)
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p2, _ := json.Marshal(set[p.Tag])
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if string(p1) != string(p2) {
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set[p.Tag] = struct {
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Proxy model.Outbound
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Count int
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}{p, set[p.Tag].Count + 1}
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keep[i] = true
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outbounds[i].Tag = fmt.Sprintf("%s %d", p.Tag, set[p.Tag].Count)
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} else {
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keep[i] = false
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}
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}
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}
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if enableGroup {
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outbounds = AddCountryGroup(outbounds, groupType, sortKey, sortType)
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}
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if templatePath != "" {
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templateDate, err := ReadTemplate(templatePath)
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if err != nil {
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return "", err
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}
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reg := regexp.MustCompile("\"<[A-Za-z]{2}>\"")
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group := false
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for _, v := range model.CountryEnglishName {
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if strings.Contains(templateDate, v) {
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group = true
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}
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}
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if !enableGroup && (reg.MatchString(templateDate) || strings.Contains(templateDate, constant.AllCountryTags) || group) {
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outbounds = AddCountryGroup(outbounds, groupType, sortKey, sortType)
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}
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var template model.Options
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if err = json.Unmarshal([]byte(templateDate), &template); err != nil {
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return "", err
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}
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result, err = MergeTemplate(outbounds, &template)
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if err != nil {
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return "", err
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}
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} else {
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r, err := json.Marshal(outbounds)
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result = string(r)
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if err != nil {
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return "", err
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}
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}
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return string(result), nil
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}
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func AddCountryGroup(proxies []model.Outbound, groupType string, sortKey string, sortType string) []model.Outbound {
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newGroup := make(map[string]model.Outbound)
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for _, p := range proxies {
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if p.Type != C.TypeSelector && p.Type != C.TypeURLTest {
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country := model.GetContryName(p.Tag)
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if group, ok := newGroup[country]; ok {
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group.SetOutbounds(append(group.GetOutbounds(), p.Tag))
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newGroup[country] = group
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} else {
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if groupType == C.TypeSelector || groupType == "" {
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newGroup[country] = model.Outbound{
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Outbound: option.Outbound{
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Tag: country,
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Type: groupType,
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SelectorOptions: option.SelectorOutboundOptions{
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Outbounds: []string{p.Tag},
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InterruptExistConnections: true,
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},
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},
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}
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} else if groupType == C.TypeURLTest {
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newGroup[country] = model.Outbound{
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Outbound: option.Outbound{
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Tag: country,
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Type: groupType,
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URLTestOptions: option.URLTestOutboundOptions{
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Outbounds: []string{p.Tag},
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InterruptExistConnections: true,
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},
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},
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}
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}
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}
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}
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}
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var groups []model.Outbound
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for _, p := range newGroup {
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groups = append(groups, p)
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}
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if sortType == "asc" {
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switch sortKey {
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case "tag":
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sort.Sort(model.SortByTag(groups))
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case "num":
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sort.Sort(model.SortByNumber(groups))
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default:
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sort.Sort(model.SortByTag(groups))
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}
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} else {
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switch sortKey {
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case "tag":
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sort.Sort(sort.Reverse(model.SortByTag(groups)))
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case "num":
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sort.Sort(sort.Reverse(model.SortByNumber(groups)))
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default:
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sort.Sort(sort.Reverse(model.SortByTag(groups)))
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}
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}
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return append(proxies, groups...)
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}
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func ReadTemplate(template string) (string, error) {
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var data string
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var err error
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isNetworkFile, _ := regexp.MatchString(`^https?://`, template)
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if isNetworkFile {
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data, err = util.Fetch(template, 3)
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if err != nil {
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return "", err
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}
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return data, nil
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} else {
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if !strings.Contains(template, string(filepath.Separator)) {
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path := filepath.Join("templates", template)
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if _, err := os.Stat(path); err == nil {
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template = path
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}
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}
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dataBytes, err := os.ReadFile(template)
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if err != nil {
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return "", err
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}
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return string(dataBytes), nil
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}
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}
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func MergeTemplate(outbounds []model.Outbound, template *model.Options) (string, error) {
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var err error
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proxyTags := make([]string, 0)
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groupTags := make([]string, 0)
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groups := make(map[string]model.Outbound)
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for _, p := range outbounds {
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if model.IsCountryGroup(p.Tag) {
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groupTags = append(groupTags, p.Tag)
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reg := regexp.MustCompile("[A-Za-z]{2}")
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country := reg.FindString(p.Tag)
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groups[country] = p
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} else {
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proxyTags = append(proxyTags, p.Tag)
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}
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}
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reg := regexp.MustCompile("<[A-Za-z]{2}>")
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for i, outbound := range template.Outbounds {
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if outbound.Type == C.TypeSelector || outbound.Type == C.TypeURLTest {
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var parsedOutbound []string = make([]string, 0)
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for _, o := range outbound.GetOutbounds() {
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if o == constant.AllProxyTags {
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parsedOutbound = append(parsedOutbound, proxyTags...)
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} else if o == constant.AllCountryTags {
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parsedOutbound = append(parsedOutbound, groupTags...)
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} else if reg.MatchString(o) {
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country := strings.ToUpper(strings.Trim(reg.FindString(o), "<>"))
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if group, ok := groups[country]; ok {
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parsedOutbound = append(parsedOutbound, group.GetOutbounds()...)
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}
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} else {
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parsedOutbound = append(parsedOutbound, o)
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}
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}
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template.Outbounds[i].SetOutbounds(parsedOutbound)
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}
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}
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template.Outbounds = append(template.Outbounds, outbounds...)
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data, err := json.Marshal(template)
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if err != nil {
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return "", err
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}
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return string(data), nil
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}
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func ConvertCProxyToSProxy(proxy string) (model.Outbound, error) {
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for prefix, parseFunc := range parser.ParserMap {
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if strings.HasPrefix(proxy, prefix) {
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proxy, err := parseFunc(proxy)
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if err != nil {
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return model.Outbound{}, err
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}
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return proxy, nil
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}
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}
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return model.Outbound{}, errors.New("unknown proxy format")
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}
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func ConvertCProxyToJson(proxy string) (string, error) {
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sProxy, err := ConvertCProxyToSProxy(proxy)
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if err != nil {
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return "", err
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}
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data, err := json.Marshal(&sProxy)
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if err != nil {
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return "", err
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}
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return string(data), nil
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}
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func ConvertSubscriptionsToSProxy(urls []string) ([]model.Outbound, error) {
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proxyList := make([]model.Outbound, 0)
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for _, url := range urls {
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data, err := util.Fetch(url, 3)
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if err != nil {
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return nil, err
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}
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proxy := data
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if !strings.Contains(data, "://") {
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proxy, err = util.DecodeBase64(data)
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}
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if err != nil {
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return nil, err
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}
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proxies := strings.Split(proxy, "\n")
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for _, p := range proxies {
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for prefix, parseFunc := range parser.ParserMap {
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if strings.HasPrefix(p, prefix) {
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proxy, err := parseFunc(p)
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if err != nil {
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return nil, err
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}
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proxyList = append(proxyList, proxy)
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}
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}
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}
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}
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return proxyList, nil
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}
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func ConvertSubscriptionsToJson(urls []string) (string, error) {
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proxyList, err := ConvertSubscriptionsToSProxy(urls)
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if err != nil {
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return "", err
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}
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result, err := json.Marshal(proxyList)
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if err != nil {
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return "", err
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}
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return string(result), nil
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}
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func DeleteProxy(proxies []model.Outbound, regex string) ([]model.Outbound, error) {
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reg, err := regexp.Compile(regex)
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if err != nil {
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return nil, err
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}
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var newProxies []model.Outbound
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for _, p := range proxies {
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if !reg.MatchString(p.Tag) {
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newProxies = append(newProxies, p)
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}
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}
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return newProxies, nil
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}
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func RenameProxy(proxies []model.Outbound, regex string, replaceText string) ([]model.Outbound, error) {
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reg, err := regexp.Compile(regex)
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if err != nil {
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return nil, err
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}
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for i, p := range proxies {
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if reg.MatchString(p.Tag) {
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proxies[i].Tag = reg.ReplaceAllString(p.Tag, replaceText)
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}
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}
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return proxies, nil
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}
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