perform binary decoding on the server side

htdocs/openwebrx.js

@@ -23,11 +23,6 @@
 
 is_firefox = navigator.userAgent.indexOf("Firefox") >= 0;
 
-function arrayBufferToString(buf) {
-    //http://stackoverflow.com/questions/6965107/converting-between-strings-and-arraybuffers
-    return String.fromCharCode.apply(null, new Uint8Array(buf));
-}
-
 var bandwidth;
 var center_freq;
 var fft_size;
@@ -1136,6 +1131,9 @@ function on_ws_recv(evt) {
                     case "sdr_error":
                         divlog(json['value'], true);
                         break;
+                    case 'secondary_demod':
+                        secondary_demod_push_data(json['value']);
+                        break;
                     default:
                         console.warn('received message of unknown type: ' + json['type']);
                 }
@@ -1186,10 +1184,6 @@ function on_ws_recv(evt) {
                     secondary_demod_waterfall_add(waterfall_f32);
                 }
                 break;
-            case 4:
-                // secondary demod
-                secondary_demod_push_data(arrayBufferToString(data));
-                break;
             default:
                 console.warn('unknown type of binary message: ' + type)
         }

owrx/connection.py

@@ -243,7 +243,8 @@ class OpenWebRxReceiverClient(Client):
         self.send(bytes([0x03]) + data)
 
     def write_secondary_demod(self, data):
-        self.send(bytes([0x04]) + data)
+        message = data.decode('ascii')
+        self.send({"type": "secondary_demod", "value": message})
 
     def write_secondary_dsp_config(self, cfg):
         self.send({"type": "secondary_config", "value": cfg})