Add support to play src on cameras with speaker

cmd/streams/streams.go

@@ -54,19 +54,32 @@ func GetOrNew(src string) *Stream {
 }
 
 func streamsHandler(w http.ResponseWriter, r *http.Request) {
-	src := r.URL.Query().Get("src")
+	query := r.URL.Query()
+	src := query.Get("src")
+
+	// without source - return all streams list
+	if src == "" && r.Method != "POST" {
+		_ = json.NewEncoder(w).Encode(streams)
+		return
+	}
 
 	// Not sure about all this API. Should be rewrited...
 	switch r.Method {
+	case "GET":
+		e := json.NewEncoder(w)
+		e.SetIndent("", "  ")
+		_ = e.Encode(streams[src])
+
 	case "PUT":
-		name := r.URL.Query().Get("name")
+		name := query.Get("name")
 		if name == "" {
 			name = src
 		}
+
 		New(name, src)
-		return
+
 	case "PATCH":
-		name := r.URL.Query().Get("name")
+		name := query.Get("name")
 		if name == "" {
 			http.Error(w, "", http.StatusBadRequest)
 			return
@@ -77,17 +90,25 @@ func streamsHandler(w http.ResponseWriter, r *http.Request) {
 		} else {
 			New(name, src)
 		}
+
+	case "POST":
+		// with dst - redirect source to dst
+		if dst := query.Get("dst"); dst != "" {
+			if stream := Get(dst); stream != nil {
+				if err := stream.Play(src); err != nil {
+					http.Error(w, err.Error(), http.StatusInternalServerError)
+				} else {
+					_ = json.NewEncoder(w).Encode(stream)
+				}
+			} else {
+				http.Error(w, "", http.StatusNotFound)
+			}
+		} else {
+			http.Error(w, "", http.StatusBadRequest)
+		}
+
 	case "DELETE":
 		delete(streams, src)
-		return
-	}
-
-	if src != "" {
-		e := json.NewEncoder(w)
-		e.SetIndent("", "  ")
-		_ = e.Encode(streams[src])
-	} else {
-		_ = json.NewEncoder(w).Encode(streams)
 	}
 }