# HG changeset patch # User Matthew Wild # Date 1600357308 -3600 # Node ID fa1821b56f75a56a5050ba06e18c9ea77cb7a9f8 # Parent ddd0007e0f1b85e43631232b954cfe8380122e3e mod_websocket: handle full frame buffer and raise stream error diff -r ddd0007e0f1b -r fa1821b56f75 plugins/mod_websocket.lua --- a/plugins/mod_websocket.lua Thu Sep 17 13:04:46 2020 +0100 +++ b/plugins/mod_websocket.lua Thu Sep 17 16:41:48 2020 +0100 @@ -275,7 +275,11 @@ -- max frame header is 22 bytes local frameBuffer = dbuffer.new(stanza_size_limit + 22, frame_fragment_limit); add_filter(session, "bytes/in", function(data) - frameBuffer:write(data); + if not frameBuffer:write(data) then + session.log("warn", "websocket frame buffer full - terminating session"); + session:close({ condition = "resource-constraint", text = "frame buffer exceeded" }); + return; + end local cache = {}; local frame, length = parse_frame(frameBuffer);