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sub2sing-box/cmd/convert.go

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package cmd
import (
"encoding/json"
"errors"
"fmt"
"io"
"net/http"
"os"
"strings"
"sub2sing-box/constant"
"sub2sing-box/model"
. "sub2sing-box/util"
"github.com/spf13/cobra"
)
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//TODO: 过滤、去重、分组、排序
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var convertCmd = &cobra.Command{
Use: "convert",
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Long: "Convert common proxy to sing-box proxy",
Short: "Convert common proxy to sing-box proxy",
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Run: func(cmd *cobra.Command, args []string) {
subscriptions, _ := cmd.Flags().GetStringSlice("subscription")
proxies, _ := cmd.Flags().GetStringSlice("proxy")
template, _ := cmd.Flags().GetString("template")
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output, _ := cmd.Flags().GetString("output")
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result := ""
var err error
proxyList, err := ConvertSubscriptionsToSProxy(subscriptions)
if err != nil {
fmt.Println(err)
return
}
for _, proxy := range proxies {
p, err := ConvertCProxyToSProxy(proxy)
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if err != nil {
fmt.Println(err)
return
}
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proxyList = append(proxyList, p)
}
if template != "" {
result, err = MergeTemplate(proxyList, template)
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if err != nil {
fmt.Println(err)
return
}
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} else {
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r, err := json.Marshal(proxyList)
result = string(r)
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if err != nil {
fmt.Println(err)
return
}
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}
if output != "" {
err = os.WriteFile(output, []byte(result), 0666)
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if err != nil {
fmt.Println(err)
return
}
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} else {
fmt.Println(string(result))
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}
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},
}
func init() {
convertCmd.Flags().StringSliceP("subscription", "s", []string{}, "subscription urls")
convertCmd.Flags().StringSliceP("proxy", "p", []string{}, "common proxies")
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convertCmd.Flags().StringP("template", "t", "", "template file path")
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convertCmd.Flags().StringP("output", "o", "", "output file path")
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convertCmd.Flags().StringP("filter", "f", "", "outbound tag filter (support regex)")
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RootCmd.AddCommand(convertCmd)
}
func Convert(urls []string, proxies []string) ([]model.Proxy, error) {
proxyList := make([]model.Proxy, 0)
newProxies, err := ConvertSubscriptionsToSProxy(urls)
if err != nil {
return nil, err
}
proxyList = append(proxyList, newProxies...)
for _, p := range proxies {
proxy, err := ConvertCProxyToSProxy(p)
if err != nil {
return nil, err
}
proxyList = append(proxyList, proxy)
}
return proxyList, nil
}
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func MergeTemplate(proxies []model.Proxy, template string) (string, error) {
config, err := ReadTemplate(template)
proxyTags := make([]string, 0)
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if err != nil {
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return "", err
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}
for _, p := range proxies {
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proxyTags = append(proxyTags, p.Tag)
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}
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ps, err := json.Marshal(&proxies)
fmt.Print(string(ps))
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if err != nil {
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return "", err
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}
var newOutbounds []model.Outbound
err = json.Unmarshal(ps, &newOutbounds)
if err != nil {
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return "", err
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}
for i, outbound := range config.Outbounds {
if outbound.Type == "urltest" || outbound.Type == "selector" {
var parsedOutbound []string = make([]string, 0)
for _, o := range outbound.Outbounds {
if o == "<all-proxy-tags>" {
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parsedOutbound = append(parsedOutbound, proxyTags...)
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} else {
parsedOutbound = append(parsedOutbound, o)
}
}
config.Outbounds[i].Outbounds = parsedOutbound
}
}
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config.Outbounds = append(config.Outbounds, newOutbounds...)
data, err := json.Marshal(config)
if err != nil {
return "", err
}
return string(data), nil
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}
func ConvertCProxyToSProxy(proxy string) (model.Proxy, error) {
for prefix, parseFunc := range constant.ParserMap {
if strings.HasPrefix(proxy, prefix) {
proxy, err := parseFunc(proxy)
if err != nil {
return model.Proxy{}, err
}
return proxy, nil
}
}
return model.Proxy{}, errors.New("Unknown proxy format")
}
func ConvertCProxyToJson(proxy string) (string, error) {
sProxy, err := ConvertCProxyToSProxy(proxy)
if err != nil {
return "", err
}
data, err := json.Marshal(&sProxy)
if err != nil {
return "", err
}
return string(data), nil
}
func FetchSubscription(url string, maxRetryTime int) (string, error) {
retryTime := 0
var err error
for retryTime < maxRetryTime {
resp, err := http.Get(url)
if err != nil {
retryTime++
continue
}
data, err := io.ReadAll(resp.Body)
if err != nil {
retryTime++
continue
}
return string(data), err
}
return "", err
}
func ConvertSubscriptionsToSProxy(urls []string) ([]model.Proxy, error) {
proxyList := make([]model.Proxy, 0)
for _, url := range urls {
data, err := FetchSubscription(url, 3)
if err != nil {
return nil, err
}
proxy, err := DecodeBase64(data)
if err != nil {
return nil, err
}
proxies := strings.Split(proxy, "\n")
for _, p := range proxies {
for prefix, parseFunc := range constant.ParserMap {
if strings.HasPrefix(p, prefix) {
proxy, err := parseFunc(p)
if err != nil {
return nil, err
}
proxyList = append(proxyList, proxy)
}
}
}
}
return proxyList, nil
}
func ConvertSubscriptionsToJson(urls []string) (string, error) {
proxyList, err := ConvertSubscriptionsToSProxy(urls)
if err != nil {
return "", err
}
result, err := json.Marshal(proxyList)
if err != nil {
return "", err
}
return string(result), nil
}
func ReadTemplate(path string) (model.Config, error) {
data, err := os.ReadFile(path)
if err != nil {
return model.Config{}, err
}
var res model.Config
err = json.Unmarshal(data, &res)
if err != nil {
return model.Config{}, err
}
return res, nil
}