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convert.go
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convert.go
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package all
import (
"bytes"
"fmt"
"io"
"net/http"
"net/url"
"os"
"strings"
"time"
"github.com/xtls/xray-core/common"
"github.com/xtls/xray-core/common/buf"
"github.com/xtls/xray-core/infra/conf"
"github.com/xtls/xray-core/infra/conf/serial"
"github.com/xtls/xray-core/main/commands/base"
"google.golang.org/protobuf/proto"
)
var cmdConvert = &base.Command{
UsageLine: "{{.Exec}} convert [json file] [json file] ...",
Short: "Convert multiple json config to protobuf",
Long: `
Convert multiple json config to protobuf.
Examples:
{{.Exec}} convert config.json c1.json c2.json <url>.json
`,
}
func init() {
cmdConvert.Run = executeConvert // break init loop
}
func executeConvert(cmd *base.Command, args []string) {
unnamedArgs := cmdConvert.Flag.Args()
if len(unnamedArgs) < 1 {
base.Fatalf("empty config list")
}
conf := &conf.Config{}
for _, arg := range unnamedArgs {
fmt.Fprintf(os.Stderr, "Read config: %s", arg)
r, err := loadArg(arg)
common.Must(err)
c, err := serial.DecodeJSONConfig(r)
if err != nil {
base.Fatalf(err.Error())
}
conf.Override(c, arg)
}
pbConfig, err := conf.Build()
if err != nil {
base.Fatalf(err.Error())
}
bytesConfig, err := proto.Marshal(pbConfig)
if err != nil {
base.Fatalf("failed to marshal proto config: %s", err)
}
if _, err := os.Stdout.Write(bytesConfig); err != nil {
base.Fatalf("failed to write proto config: %s", err)
}
}
// loadArg loads one arg, maybe an remote url, or local file path
func loadArg(arg string) (out io.Reader, err error) {
var data []byte
switch {
case strings.HasPrefix(arg, "http://"), strings.HasPrefix(arg, "https://"):
data, err = FetchHTTPContent(arg)
case arg == "stdin:":
data, err = io.ReadAll(os.Stdin)
default:
data, err = os.ReadFile(arg)
}
if err != nil {
return
}
out = bytes.NewBuffer(data)
return
}
// FetchHTTPContent dials https for remote content
func FetchHTTPContent(target string) ([]byte, error) {
parsedTarget, err := url.Parse(target)
if err != nil {
return nil, newError("invalid URL: ", target).Base(err)
}
if s := strings.ToLower(parsedTarget.Scheme); s != "http" && s != "https" {
return nil, newError("invalid scheme: ", parsedTarget.Scheme)
}
client := &http.Client{
Timeout: 30 * time.Second,
}
resp, err := client.Do(&http.Request{
Method: "GET",
URL: parsedTarget,
Close: true,
})
if err != nil {
return nil, newError("failed to dial to ", target).Base(err)
}
defer resp.Body.Close()
if resp.StatusCode != 200 {
return nil, newError("unexpected HTTP status code: ", resp.StatusCode)
}
content, err := buf.ReadAllToBytes(resp.Body)
if err != nil {
return nil, newError("failed to read HTTP response").Base(err)
}
return content, nil
}