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main.go
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main.go
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package main
//go:generate errorgen
import (
"flag"
"fmt"
"os"
"os/signal"
"path/filepath"
"runtime"
"strings"
"syscall"
"v2ray.com/core"
"v2ray.com/core/common/platform"
"v2ray.com/core/main/confloader"
_ "v2ray.com/core/main/distro/all"
)
var (
configFile = flag.String("config", "", "Config file for V2Ray.")
version = flag.Bool("version", false, "Show current version of V2Ray.")
test = flag.Bool("test", false, "Test config file only, without launching V2Ray server.")
format = flag.String("format", "json", "Format of input file.")
)
func fileExists(file string) bool {
info, err := os.Stat(file)
return err == nil && !info.IsDir()
}
func getConfigFilePath() string {
if len(*configFile) > 0 {
return *configFile
}
if workingDir, err := os.Getwd(); err == nil {
configFile := filepath.Join(workingDir, "config.json")
if fileExists(configFile) {
return configFile
}
}
if configFile := platform.GetConfigurationPath(); fileExists(configFile) {
return configFile
}
return ""
}
func GetConfigFormat() string {
switch strings.ToLower(*format) {
case "pb", "protobuf":
return "protobuf"
default:
return "json"
}
}
func startV2Ray() (core.Server, error) {
configFile := getConfigFilePath()
configInput, err := confloader.LoadConfig(configFile)
if err != nil {
return nil, newError("failed to load config: ", configFile).Base(err)
}
defer configInput.Close()
config, err := core.LoadConfig(GetConfigFormat(), configFile, configInput)
if err != nil {
return nil, newError("failed to read config file: ", configFile).Base(err)
}
server, err := core.New(config)
if err != nil {
return nil, newError("failed to create server").Base(err)
}
return server, nil
}
func printVersion() {
version := core.VersionStatement()
for _, s := range version {
fmt.Println(s)
}
}
func main() {
flag.Parse()
printVersion()
if *version {
return
}
server, err := startV2Ray()
if err != nil {
fmt.Println(err.Error())
// Configuration error. Exit with a special value to prevent systemd from restarting.
os.Exit(23)
}
if *test {
fmt.Println("Configuration OK.")
os.Exit(0)
}
if err := server.Start(); err != nil {
fmt.Println("Failed to start", err)
os.Exit(-1)
}
defer server.Close()
// Explicitly triggering GC to remove garbage from config loading.
runtime.GC()
{
osSignals := make(chan os.Signal, 1)
signal.Notify(osSignals, os.Interrupt, os.Kill, syscall.SIGTERM)
<-osSignals
}
}