piframe-go/wifi/wifi.go

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package wifi
import (
"log"
"os/exec"
"strings"
)
const (
CMD_NMCLI = "/usr/bin/nmcli"
)
type wifi struct {
essid string
password string
}
func New(essid string, password string) *wifi {
w := wifi{
essid: essid,
password: password,
}
return &w
}
func (w *wifi) ApplyConfig() {
// Cleanup existing WiFi connections
nmcliOut, err := exec.Command(CMD_NMCLI, "-t", "connection", "show").Output()
if err != nil {
log.Fatalf("Error running %s : %s", CMD_NMCLI, err)
}
connections := strings.Split(strings.Trim(string(nmcliOut), "\n"), "\n")
for _, connection := range connections {
details := strings.Split(connection, ":")
if details[2] != "802-11-wireless" {
continue
}
err := exec.Command(CMD_NMCLI, "connection", "del", details[1]).Run()
if err != nil {
log.Fatalf("Error running %s : %s", CMD_NMCLI, err)
}
}
// Create new WiFi connection with network manager
err = exec.Command(CMD_NMCLI, "d", "wifi", "connect", w.essid, "password", w.password).Run()
if err != nil {
log.Fatalf("Error running %s : %s", CMD_NMCLI, err)
}
}