forked from aspcartman/mysocks
/
main.go
53 lines (46 loc) · 1002 Bytes
/
main.go
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package main
import (
"net"
"github.com/aspcartman/mysocks/socks"
"os"
"strings"
"github.com/aspcartman/mysocks/env"
)
var log = env.Log.WithField("module", "main")
func main() {
lst, err := net.Listen("tcp", "0.0.0.0:8080")
if err != nil {
panic(err)
}
socks.Serve(lst, &socks.Config{
Auth: authcheck(),
HandleError: func(stage string, err error) {
log.WithError(err).Error(stage)
},
Dial: net.Dial,
})
}
func authcheck() func(user, password string) bool {
envvar := os.Getenv("PROXY_AUTH")
if len(envvar) == 0 {
return nil
}
// Expects user:pass;user;user:pass in PROXY_AUTH
usrs := map[string]string{}
for _, authstr := range strings.Split(envvar, ";") {
r := strings.Split(authstr, ":")
if len(r) == 1 {
usrs[r[0]] = ""
} else {
usrs[r[0]] = r[1]
}
}
return func(user, password string) bool {
if p, ok := usrs[user]; ok && len(p) == 0 {
return true // no password specified
} else if ok {
return p == password
}
return false
}
}