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mod_websocket: handle full frame buffer and raise stream error

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Matthew Wild 2020-09-17 16:41:48 +01:00
parent 5a1c206ece
commit a4e9e4815c
1 changed files with 5 additions and 1 deletions
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6
plugins/mod_websocket.lua
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@ -275,7 +275,11 @@ function handle_request(event)
-- 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);