Mercurial > prosody-modules
view mod_muc_eventsource/mod_muc_eventsource.lua @ 5265:f845c218e52c
mod_http_oauth2: Allow revoking a token without OAuth client credentials
If you have a valid token, and you're not supposed to have it, revoking
it seems the most responsible thing to do with it, so it should be
allowed, while if you are supposed to have it, you should also be
allowed to revoke it.
author | Kim Alvefur <zash@zash.se> |
---|---|
date | Tue, 21 Mar 2023 22:02:38 +0100 |
parents | 39485b9bbdd6 |
children |
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module:depends("http"); local nodeprep = require "util.encodings".stringprep.nodeprep; local jid_split = require "util.jid".split; local json = require "util.json"; local streams = {}; 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) local response = event.response; node = nodeprep(node); if node == nil then return 400; end module:log("debug", "Client subscribed to: %s", node); 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_message(event) local room, stanza = event.room, event.stanza; local node = (jid_split(event.room.jid)); local clientlist = streams[node]; if not clientlist then module:log("debug", "No clients for %q", node); return; end -- Extract body from message local body = event.stanza:get_child_text("body"); if not body then return; end local nick = select(3, jid_split(stanza.attr.from)); -- Encode body and broadcast to eventsource subscribers local json_data = json.encode({ nick = nick; body = body; }); local data = "data: "..json_data:gsub("\n", "\ndata: \n").."\n\n"; for response, conn in pairs(clientlist) do conn:write(data); end end module:provides("http", { name = "eventsource"; route = { ["GET /*"] = serve_stream; }; }); module:hook("muc-broadcast-message", handle_message);