Mercurial > prosody-modules
view mod_pubsub_eventsource/mod_pubsub_eventsource.lua @ 2494:d300ae5dba87
mod_smacks: Fix some bugs with smacks-ack-delayed event triggering.
The old code had several flaws which are addressed here.
First of all this fixes the if statement guarding the event generation
There where some timing glitches addressed by this commit as well.
author | tmolitor <thilo@eightysoft.de> |
---|---|
date | Sun, 12 Feb 2017 21:23:22 +0100 |
parents | 7dbde05b48a9 |
children | 0329cf8cdecb |
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module:depends("http"); module:depends("pubsub"); local streams = {}; local service = hosts[module.host].modules.pubsub.service; function client_closed(response) local node = response._eventsource_node; module:log("debug", "Destroying client for %q", node); streams[node][response] = nil; if next(streams[node]) == nil then streams[node] = nil; end end function serve_stream(event, node) module:log("debug", "Client subscribed to: %s", node); local response = event.response; response.on_destroy = client_closed; response._eventsource_node = node; response.conn:write(table.concat({ "HTTP/1.1 200 OK"; "Content-Type: text/event-stream"; "Access-Control-Allow-Origin: *"; "Access-Control-Allow-Methods: GET"; "Access-Control-Max-Age: 7200"; ""; ""; }, "\r\n")); local clientlist = streams[node]; if not clientlist then clientlist = {}; streams[node] = clientlist; end clientlist[response] = response.conn; return true; end function handle_update(event) module:log("debug", "Item published: %q", event.node); local node = event.node; local clientlist = streams[node]; local item = event.item; if (item.name == "json" and item.attr.xmlns == "urn:xmpp:json:0") or (item.name == "data" and item.attr.xmlns == "https://prosody.im/protocol/data") then item = item[1]; end local data = "data: "..tostring(item):gsub("\n", "\ndata: \n").."\n\n"; if not clientlist then module:log("debug", "No clients for %q", node); return; end for response, conn in pairs(clientlist) do conn:write(data); end end module:provides("http", { name = "eventsource"; route = { ["GET /*"] = serve_stream; }; }); module:hook_object_event(service.events, "item-published", handle_update);