func main() {
clients, errors, err := internetgateway1.NewWANPPPConnection1Clients()
if err != nil {
log.Fatal(err)
}
fmt.Printf("Got %d errors finding servers and %d successfully discovered.\n",
len(errors), len(clients))
for i, e := range errors {
fmt.Printf("Error finding server #%d: %v\n", i+1, e)
}
for _, c := range clients {
dev := &c.ServiceClient.RootDevice.Device
srv := c.ServiceClient.Service
fmt.Println(dev.FriendlyName, " :: ", srv.String())
scpd, err := srv.RequestSCDP()
if err != nil {
fmt.Printf(" Error requesting service SCPD: %v\n", err)
} else {
fmt.Println(" Available actions:")
for _, action := range scpd.Actions {
fmt.Printf(" * %s\n", action.Name)
for _, arg := range action.Arguments {
var varDesc string
if stateVar := scpd.GetStateVariable(arg.RelatedStateVariable); stateVar != nil {
varDesc = fmt.Sprintf(" (%s)", stateVar.DataType.Name)
}
fmt.Printf(" * [%s] %s%s\n", arg.Direction, arg.Name, varDesc)
}
}
}
if scpd == nil || scpd.GetAction("GetExternalIPAddress") != nil {
ip, err := c.GetExternalIPAddress()
fmt.Println("GetExternalIPAddress: ", ip, err)
}
if scpd == nil || scpd.GetAction("GetStatusInfo") != nil {
status, lastErr, uptime, err := c.GetStatusInfo()
fmt.Println("GetStatusInfo: ", status, lastErr, uptime, err)
}
if scpd == nil || scpd.GetAction("GetIdleDisconnectTime") != nil {
idleTime, err := c.GetIdleDisconnectTime()
fmt.Println("GetIdleDisconnectTime: ", idleTime, err)
}
if scpd == nil || scpd.GetAction("AddPortMapping") != nil {
err := c.AddPortMapping("", 5000, "TCP", 5001, "192.168.1.2", true, "Test port mapping", 0)
fmt.Println("AddPortMapping: ", err)
}
if scpd == nil || scpd.GetAction("DeletePortMapping") != nil {
err := c.DeletePortMapping("", 5000, "TCP")
fmt.Println("DeletePortMapping: ", err)
}
}
}
// Use discovered WANPPPConnection1 services to find external IP addresses.
func Example_WANPPPConnection1_GetExternalIPAddress() {
clients, errors, err := internetgateway1.NewWANPPPConnection1Clients()
extIPClients := make([]GetExternalIPAddresser, len(clients))
for i, client := range clients {
extIPClients[i] = client
}
DisplayExternalIPResults(extIPClients, errors, err)
// Output:
}
// Discover scans the local network for routers and returns the first
// UPnP-enabled router it encounters. It will try up to 3 times to find a
// router, sleeping a random duration between each attempt. This is to
// mitigate a race condition with many callers attempting to discover
// simultaneously.
//
// TODO: if more than one client is found, only return those on the same
// subnet as the user?
func Discover() (*IGD, error) {
maxTries := 3
sleepMs, _ := crypto.RandIntn(5000)
for try := 0; try < maxTries; try++ {
time.Sleep(time.Millisecond * time.Duration(sleepMs))
pppclients, _, _ := internetgateway1.NewWANPPPConnection1Clients()
if len(pppclients) > 0 {
return &IGD{pppclients[0]}, nil
}
ipclients, _, _ := internetgateway1.NewWANIPConnection1Clients()
if len(ipclients) > 0 {
return &IGD{ipclients[0]}, nil
}
sleepMs *= 2
}
return nil, errors.New("no UPnP-enabled gateway found")
}