config.go

package main

import (
	"encoding/json"
	"flag"
	"io/ioutil"
	"log"
	"os"
	"runtime"
)

//CaCert/CA.crt should be trusted by local OS
//Php-Proxy CA
var CaCert = []byte(`-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----`)

var CaKey = []byte(`-----BEGIN PRIVATE KEY-----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-----END PRIVATE KEY-----`)

//
const version string = "2.1.5"

//

type config struct {
	//php fetchserver path
	Fetchserver string `json:"fetchserver"`
	//password
	Password string `json:"password"`
	//when connect https php server,TLS sni extension
	Sni string `json:"sni"`
	//local listen address
	Listen string `json:"listen"`
	//enable http3
	Http3 bool `json:"http3"`
	//debug enable
	Debug bool `json:"debug"`
	//insecure connect to php server
	Insecure bool `json:"insecure"`
	//auto proxy
	Autoproxy bool `json:"autoproxy"`
	//user agent
	User_agent string `json:"user-agent"`
	//parent proxy
	Proxy string `json:"proxy"`
	//ca
	Ca string `json:"ca"`
	//key
	Key string `json:"key"`
}

func (c *config) init_config() {
	//
	confpath := ""
	//
	log.Printf("Php-Proxy version:v%s\n", version)
	//
	log.Printf("Go version:%s\n", runtime.Version())
	//
	flag.CommandLine.SetOutput(os.Stdout)
	//
	flag.StringVar(&confpath, "c", "", "config file path")
	flag.StringVar(&c.Listen, "l", "127.0.0.1:8081", "Local listen address(HTTP Proxy address)")
	flag.StringVar(&c.Password, "p", "123456", "php server password")
	flag.StringVar(&c.Sni, "sni", "", "HTTPS sni extension ServerName(default fetchserver hostname)")
	flag.StringVar(&c.Fetchserver, "s", "https://a.bc.com/php-proxy/index.php", "php fetchserver path(http/https)")
	flag.StringVar(&c.User_agent, "ua", "", "customize User-Agent to php server(default use brower User-Agent)")
	flag.StringVar(&c.Proxy, "fp", "", "connect php server via Forward Proxy(https://user:password@domain.com,http://user:password@127.0.0.1:8080,socks5://user:password@127.0.0.1:1080)")
	flag.StringVar(&c.Ca, "ca", "", "ca file path")
	flag.StringVar(&c.Key, "key", "", "key file path")
	flag.BoolVar(&c.Debug, "d", false, "enable debug mode for debug")
	flag.BoolVar(&c.Http3, "h3", false, "enable http3 client mode")
	flag.BoolVar(&c.Autoproxy, "a", false, "enable auto proxy")
	flag.BoolVar(&c.Insecure, "k", false, "insecure connect to php server(ignore certs verify/middle attack)")
	flag.Parse()
	//
	//c.writeconfig()
	if len(os.Args) < 2 || confpath != "" {
		c.loadconfig(confpath)
	} else {
		c.writeconfig()
	}
	//
	if c.Autoproxy {
		log.Printf("Autoproxy enabled")
	} else {
		log.Printf("Autoproxy not enabled")
	}
	if c.Http3 {
		log.Printf("Http3 enabled")
	} else {
		log.Printf("Http3 not enabled")
	}
	//
	log.Printf("php Fetch server:%s\n", c.Fetchserver)
	//
	if c.Proxy == "" {
		log.Printf("Forward Proxy not enabled")
	} else {
		log.Printf("Forward Proxy enabled:" + c.Proxy)
	}
}

func (c *config) loadconfig(confpath string) {
	dir, err := os.Getwd()
	if err != nil {
		log.Fatal(err)
	}
	fpath := ""
	if confpath != "" {
		fpath = confpath
	} else {
		fpath = dir + "/php-proxy.json"
	}
	raw, err1 := ioutil.ReadFile(fpath)
	if err1 != nil {
		//log.Print(err1)
		return
	}
	log.Print("Load config from " + fpath)
	err = json.Unmarshal(raw, c)
	if err != nil {
		log.Print(err)
	}
}
func (c *config) writeconfig() {
	dir, err := os.Getwd()
	if err != nil {
		log.Fatal(err)
	}
	raw, err1 := json.MarshalIndent(c, "", "")
	//raw, err1 := json.Marshal(c)
	//log.Print(string(raw))
	if err1 != nil {
		log.Print(err1)
		return
	}
	err = ioutil.WriteFile(dir+"/php-proxy.json", raw, 0644)
	if err != nil {
		log.Print(err)
		return
	}
	log.Print("Write config to " + dir + "/php-proxy.json")
}