openolat#71: hide edit streams functions for non admins

src/main/java/org/olat/course/nodes/livestream/LiveStreamSecurityCallbackFactory.java

@@ -34,7 +34,8 @@ public class LiveStreamSecurityCallbackFactory {
 	public static LiveStreamSecurityCallback createSecurityCallback(UserCourseEnvironment userCourseEnv,
 			ModuleConfiguration config) {
 		boolean canViewStreams = true;
-		boolean canEditStreams = 
+		// UIBK: we currently only allow olat admins to change/add streams, remove the first condition here to revert:
+		boolean canEditStreams = userCourseEnv.getIdentityEnvironment().getRoles().isAdministrator() &&
 				userCourseEnv.isAdmin() 
 				|| (userCourseEnv.isCoach() && config.getBooleanSafe(LiveStreamCourseNode.CONFIG_COACH_CAN_EDIT));
 		return createSecurityCallback(canViewStreams, canEditStreams);

src/main/java/org/olat/course/nodes/livestream/ui/LiveStreamConfigController.java

@@ -71,6 +71,8 @@ public class LiveStreamConfigController extends FormBasicController {
 		coachCanEditEl = uifactory.addCheckboxesVertical("config.coach.edit", formLayout, ENABLED_KEYS,
 				translateAll(getTranslator(), ENABLED_KEYS), 1);
 		boolean coachCanEdit = config.getBooleanSafe(LiveStreamCourseNode.CONFIG_COACH_CAN_EDIT);
+		// UIBK do now allow normal users to set this option as currently only admins can edit stream events
+		coachCanEditEl.setVisible(ureq.getUserSession().getRoles().isAdministrator());
 		coachCanEditEl.select(ENABLED_KEYS[0], coachCanEdit);
 		
 		uifactory.addFormSubmitButton("save", formLayout);