Add support for active viewer details API. Closes #1477 (#1747)

controllers/admin/viewers.go

@@ -4,7 +4,11 @@ import (
 	"encoding/json"
 	"net/http"
 
+	"github.com/owncast/owncast/controllers"
+	"github.com/owncast/owncast/core"
+	"github.com/owncast/owncast/core/user"
 	"github.com/owncast/owncast/metrics"
+	"github.com/owncast/owncast/models"
 	log "github.com/sirupsen/logrus"
 )
 
@@ -17,3 +21,23 @@ func GetViewersOverTime(w http.ResponseWriter, r *http.Request) {
 		log.Errorln(err)
 	}
 }
+
+// GetActiveViewers returns currently connected clients.
+func GetActiveViewers(w http.ResponseWriter, r *http.Request) {
+	c := core.GetActiveViewers()
+	viewers := []models.Viewer{}
+	for _, v := range c {
+		viewers = append(viewers, *v)
+	}
+
+	w.Header().Set("Content-Type", "application/json")
+
+	if err := json.NewEncoder(w).Encode(viewers); err != nil {
+		controllers.InternalErrorHandler(w, err)
+	}
+}
+
+// ExternalGetActiveViewers returns currently connected clients.
+func ExternalGetActiveViewers(integration user.ExternalAPIUser, w http.ResponseWriter, r *http.Request) {
+	GetConnectedChatClients(w, r)
+}