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mod_pubsub_eventsource/mod_pubsub_eventsource.lua @ 4210:a0937b5cfdcb
mod_invites_page: Remove preauth URI button
This button is incompatible with the majority of XMPP clients around, yet based
on feedback from users, many are drawn to click it when they have any XMPP client
installed already.
In the case where the user already has software installed, we would prefer them to
select it from the software list so they can follow the setup process suited to
their specific client (we already track which software supports preauth URIs). If
their client is not listed, they can still use the manual registration link instead.
author | Matthew Wild <mwild1@gmail.com> |
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date | Fri, 16 Oct 2020 11:03:38 +0100 |
parent | 1343:7dbde05b48a9 |
child | 4508:0329cf8cdecb |
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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);