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fuckGFW.go
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fuckGFW.go
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//
// Update hosts for all OS
//
package main
import (
"os"
"io"
"bufio"
"net/http"
"time"
"bytes"
"io/ioutil"
"runtime"
"fmt"
)
const (
SEARCH_STRING string = "#TX-HOSTS"
HOSTS_SOURCE string = "https://raw.githubusercontent.com/txthinking/google-hosts/master/hosts"
)
func Exit(message string){
fmt.Println(message)
time.Sleep(3 * time.Second)
os.Exit(0)
}
func main(){
BR := "\n"
HOSTS_PATH := "/etc/hosts"
if runtime.GOOS == "windows"{
BR = "\r\n"
HOSTS_PATH = os.Getenv("SYSTEMROOT")+"\\system32\\drivers\\etc\\hosts"
}
r, err := http.Get(HOSTS_SOURCE)
if err != nil {
Exit(err.Error() + "Try again.")
}
data, err := ioutil.ReadAll(r.Body)
if err != nil {
Exit(err.Error())
}
hosts := string(bytes.Replace(data, []byte("\n"), []byte(BR), -1))
yours := ""
f, err := os.OpenFile(HOSTS_PATH, os.O_RDONLY, 0444)
if err == nil {
bnr := bufio.NewReader(f)
for{
line, _, err := bnr.ReadLine()
if bytes.Equal(line,[]byte(SEARCH_STRING)) || err == io.EOF{
break
}
yours += string(line) + BR
}
err = f.Close()
if err != nil {
Exit(err.Error())
}
_ = os.Remove(HOSTS_PATH+".BAK")
_ = os.Rename(HOSTS_PATH, HOSTS_PATH+".BAK")
}
yours += SEARCH_STRING + BR
f, err = os.OpenFile(HOSTS_PATH, os.O_WRONLY|os.O_TRUNC|os.O_CREATE, 0644)
if err != nil {
Exit(err.Error())
}
_, err = f.WriteString(yours + hosts)
if err != nil {
Exit(err.Error())
}
err = f.Close()
if err != nil {
Exit(err.Error())
}
Exit("Success!")
}