mirror of
https://github.com/nitezs/sub2sing-box.git
synced 2024-12-23 22:14:41 -05:00
329 lines
7.4 KiB
Go
329 lines
7.4 KiB
Go
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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model2 "sub2sing-box/model"
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"sub2sing-box/parser"
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"sub2sing-box/util"
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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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template string,
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delete string,
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rename map[string]string,
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group 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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proxyList, 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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proxyList = append(proxyList, p)
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}
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if delete != "" {
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proxyList, err = DeleteProxy(proxyList, 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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proxyList, err = RenameProxy(proxyList, 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 model2.Proxy
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Count int
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})
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for i, p := range proxyList {
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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 model2.Proxy
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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 model2.Proxy
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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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proxyList[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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var newProxyList []model2.Proxy
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for i, p := range proxyList {
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if keep[i] {
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newProxyList = append(newProxyList, p)
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}
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}
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proxyList = newProxyList
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var outbounds []model2.Outbound
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ps, 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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err = json.Unmarshal(ps, &outbounds)
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if err != nil {
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return "", err
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}
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if group {
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outbounds = AddCountryGroup(outbounds, groupType, sortKey, sortType)
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}
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if template != "" {
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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 []model2.Outbound, groupType string, sortKey string, sortType string) []model2.Outbound {
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newGroup := make(map[string]model2.Outbound)
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for _, p := range proxies {
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if p.Type != "selector" && p.Type != "urltest" {
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country := model2.GetContryName(p.Tag)
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if group, ok := newGroup[country]; ok {
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group.Outbounds = append(group.Outbounds, p.Tag)
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newGroup[country] = group
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} else {
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newGroup[country] = model2.Outbound{
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Tag: country,
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Type: groupType,
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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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var groups []model2.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(model2.SortByTag(groups))
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case "num":
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sort.Sort(model2.SortByNumber(groups))
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default:
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sort.Sort(model2.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(model2.SortByTag(groups)))
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case "num":
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sort.Sort(sort.Reverse(model2.SortByNumber(groups)))
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default:
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sort.Sort(sort.Reverse(model2.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 MergeTemplate(outbounds []model2.Outbound, template string) (string, error) {
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var config model2.Config
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var err error
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if strings.HasPrefix(template, "http") {
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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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err = json.Unmarshal([]byte(data), &config)
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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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if !strings.Contains(template, string(filepath.Separator)) {
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if _, err := os.Stat(template); os.IsNotExist(err) {
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template = filepath.Join("templates", template)
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}
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}
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config, err = ReadTemplate(template)
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}
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proxyTags := make([]string, 0)
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groupTags := make([]string, 0)
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groups := make(map[string]model2.Outbound)
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if err != nil {
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return "", err
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}
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for _, p := range outbounds {
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if model2.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 config.Outbounds {
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var parsedOutbound []string = make([]string, 0)
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for _, o := range outbound.Outbounds {
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if o == "<all-proxy-tags>" {
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parsedOutbound = append(parsedOutbound, proxyTags...)
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} else if o == "<all-country-tags>" {
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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.Outbounds...)
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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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config.Outbounds[i].Outbounds = parsedOutbound
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}
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config.Outbounds = append(config.Outbounds, outbounds...)
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data, err := json.Marshal(config)
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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) (model2.Proxy, 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 model2.Proxy{}, 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 model2.Proxy{}, 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) ([]model2.Proxy, error) {
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proxyList := make([]model2.Proxy, 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, err := util.DecodeBase64(data)
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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 ReadTemplate(path string) (model2.Config, error) {
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data, err := os.ReadFile(path)
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if err != nil {
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return model2.Config{}, err
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}
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var res model2.Config
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err = json.Unmarshal(data, &res)
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if err != nil {
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return model2.Config{}, err
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}
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return res, nil
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}
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func DeleteProxy(proxies []model2.Proxy, regex string) ([]model2.Proxy, 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 []model2.Proxy
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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 []model2.Proxy, regex string, replaceText string) ([]model2.Proxy, 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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