Enable basic auth for ical export

icalexport.py

@@ -35,11 +35,14 @@ def calperm(func):
 			for net in config['FSMPI_IP_RANGES']:
 				if ip in ip_network(net):
 					permission = True
+		if request.authorization:
+			userinfo, groups = ldapauth(request.authorization.username, request.authorization.password)
+			if check_mod(userinfo.get('uid'), groups):
+				permission = True
 		if permission:
 			return func(*args, **kwargs)
 		else:
-			flash('Diese Funktion ist nur aus dem FSMPI-Netz(für SOGO-Import) oder eingeloggt verfügbar!')
-			return redirect(url_for('index'))
+			return Response("Login required", 401, {'WWW-Authenticate': 'Basic realm="FS-Login required"'})
 	return decorator
 
 @app.route('/internal/ical/all')