openvidu-server: recording entities will always have url param defined

openvidu-java-client/src/main/java/io/openvidu/java/client/Recording.java

@@ -190,10 +190,11 @@ public class Recording {
 
 	/**
 	 * URL of the recording. You can access the file from there. It is
-	 * <code>null</code> until recording is stopped or if
+	 * <code>null</code> until recording is stopped. If
 	 * <a href="https://openvidu.io/docs/reference-docs/openvidu-server-params/"
 	 * target="_blank">OpenVidu Server configuration</a> property
-	 * <code>openvidu.recording.public-access</code> is false
+	 * <code>openvidu.recording.public-access</code> is false, this path will be
+	 * secured with OpenVidu credentials
 	 */
 	public String getUrl() {
 		return url;

openvidu-node-client/src/Recording.ts

@@ -49,7 +49,7 @@ export class Recording {
     duration = 0;
 
     /**
-     * URL of the recording. You can access the file from there. It is `null` until recording is stopped or if OpenVidu Server configuration property `openvidu.recording.public-access` is false
+     * URL of the recording. You can access the file from there. It is `null` until recording is stopped. If OpenVidu Server configuration property `openvidu.recording.public-access` is false, this path will be secured with OpenVidu credentials
      */
     url: string;
 

openvidu-server/src/main/java/io/openvidu/server/recording/service/RecordingManager.java

@@ -417,11 +417,25 @@ public class RecordingManager {
 					log.error("Exception while closing FileReader: {}", e.getMessage());
 				}
 			}
-			return new Recording(json);
+			Recording recording = new Recording(json);
+			String recordingUrl = openviduConfig.getFinalUrl() + "recordings/" + recording.getId() + "/"
+					+ recording.getName() + "." + this.getExtensionFromRecording(recording);
+			recording.setUrl(recordingUrl);
+			return recording;
 		}
 		return null;
 	}
 
+	public String getExtensionFromRecording(Recording recording) {
+		if (io.openvidu.java.client.Recording.OutputMode.INDIVIDUAL.equals(recording.getOutputMode())) {
+			return "zip";
+		} else if (recording.hasVideo()) {
+			return "mp4";
+		} else {
+			return "webm";
+		}
+	}
+
 	public void initAutomaticRecordingStopThread(final Session session) {
 		final String recordingId = this.sessionsRecordings.get(session.getSessionId()).getId();
 		ScheduledFuture<?> future = this.automaticRecordingStopExecutor.schedule(() -> {