smegmesh/pkg/lib/ip.go
Tim Beatham 7be11dbaa3 27-remove-client-grpc-endpoint
Removed a client's grpc endpoint value. Client's aren't publicly
available so there is no need for a client's gRPC endpoint.
Also changed a node ID's to their public key. A node id's public
address is an issue for mobility of clients as their endpoint
is subject to change
2023-11-24 12:07:03 +00:00

62 lines
1.0 KiB
Go

package lib
import (
"encoding/json"
"io"
"log"
"net"
"net/http"
)
// GetOutboundIP: gets the oubound IP of this packet
func GetOutboundIP() (net.IP, error) {
conn, err := net.Dial("udp", "8.8.8.8:80")
if err != nil {
log.Fatal(err)
}
defer conn.Close()
localAddr := conn.LocalAddr().(*net.UDPAddr)
return localAddr.IP, nil
}
const IP_SERVICE = "https://api.ipify.org?format=json"
type IpResponse struct {
Ip string `json:"ip"`
}
func (i *IpResponse) GetIP() net.IP {
return net.ParseIP(i.Ip)
}
// GetPublicIP: get the nodes public IP address. For when a node is behind NAT
func GetPublicIP() (net.IP, error) {
req, err := http.NewRequest(http.MethodGet, IP_SERVICE, nil)
if err != nil {
return nil, err
}
res, err := http.DefaultClient.Do(req)
if err != nil {
return nil, err
}
resBody, err := io.ReadAll(res.Body)
if err != nil {
return nil, err
}
var jsonResponse IpResponse
err = json.Unmarshal([]byte(resBody), &jsonResponse)
if err != nil {
return nil, err
}
return jsonResponse.GetIP(), nil
}