Add events stream-events command.

cmd/gonvif/events/cmd.go

@@ -21,6 +21,7 @@ func init() {
 		getEventBrokers,
 		getEventProperties,
 		getServiceCapabilities,
+		streamEvents,
 	)
 }
 

cmd/gonvif/events/stream-events.go

@@ -0,0 +1,51 @@
+package events
+
+import (
+	"github.com/spf13/cobra"
+
+	"github.com/eyetowers/gonvif/cmd/gonvif/root"
+	"github.com/eyetowers/gonvif/pkg/generated/onvif/www_onvif_org/ver10/events/wsdl"
+	"github.com/eyetowers/gonvif/pkg/gonvif"
+)
+
+var streamEvents = &cobra.Command{
+	Use:   "stream-events",
+	Short: "Stream live Onvif events from the device.",
+	Args:  cobra.NoArgs,
+	RunE: func(cmd *cobra.Command, args []string) error {
+		onvif, err := gonvif.New(root.URL, root.Username, root.Password, root.Verbose)
+		if err != nil {
+			return err
+		}
+		return runStreamEvents(onvif)
+	},
+}
+
+func runStreamEvents(client gonvif.Client) error {
+	events, err := client.Events()
+	if err != nil {
+		return err
+	}
+	resp, err := events.CreatePullPointSubscription(&wsdl.CreatePullPointSubscription{})
+	if err != nil {
+		return err
+	}
+	subscription, err := client.Subscription(string(*resp.SubscriptionReference.Address))
+	if err != nil {
+		return err
+	}
+	return processEvents(subscription)
+}
+
+func processEvents(subscription wsdl.PullPointSubscription) error {
+	for {
+		resp, err := subscription.PullMessages(&wsdl.PullMessages{MessageLimit: 100})
+		if err != nil {
+			return err
+		}
+		err = root.OutputJSON(resp)
+		if err != nil {
+			return err
+		}
+	}
+}