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package internal
import (
"encoding/json"
"io/ioutil"
"log"
"net"
"os"
"strings"
)
type config struct {
StateDir string
Address string
Participants []string
}
func newConfig(configFile string) (config, error) {
var config config
file, err := os.Open(configFile)
if err != nil {
return config, err
}
defer file.Close()
bytes, err := ioutil.ReadAll(file)
if err != nil {
return config, err
}
err = json.Unmarshal(bytes, &config)
if err != nil {
return config, err
}
return config, nil
}
func (c config) isParticipant(remoteAddr string) bool {
remoteIP := stripPort(remoteAddr)
for _, participant := range c.Participants {
ips, err := net.LookupIP(stripPort(participant))
if err != nil {
log.Println(err)
continue
}
for _, ip := range ips {
if remoteIP == ip.String() {
return true
}
}
}
return false
}
func stripPort(addr string) string {
parts := strings.Split(addr, ":")
return parts[0]
}
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