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mod_throttle_presence/mod_throttle_presence.lua @ 4300:3f3b672b7616
mod_vcard_muc: Pass room object around instead of JID, hopefully fixing traceback
More efficient to pass the object around instead of using the JID
and looking up the object when needed.
It seems in some (undetermined) cases get_room_from_jid(room.jid) is nil.
author | Matthew Wild <mwild1@gmail.com> |
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date | Tue, 15 Dec 2020 10:49:11 +0000 |
parent | 1925:552faee596b7 |
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local filters = require "util.filters"; local st = require "util.stanza"; module:depends("csi"); local function presence_filter(stanza, session) if getmetatable(stanza) ~= st.stanza_mt then return stanza; -- Things we don't want to touch end if stanza._flush then stanza._flush = nil; return stanza; end local buffer = session.presence_buffer; local from = stanza.attr.from; if stanza.name == "presence" and (stanza.attr.type == nil or stanza.attr.type == "unavailable") then module:log("debug", "Buffering presence stanza from %s to %s", stanza.attr.from, session.full_jid); buffer[stanza.attr.from] = st.clone(stanza); return nil; -- Drop this stanza (we've stored it for later) else local cached_presence = buffer[stanza.attr.from]; if cached_presence then module:log("debug", "Important stanza for %s from %s, flushing presence", session.full_jid, from); stanza._flush = true; cached_presence._flush = true; session.send(cached_presence); buffer[stanza.attr.from] = nil; end end return stanza; end local function throttle_session(event) local session = event.origin; if session.presence_buffer then return; end module:log("debug", "Suppressing presence updates to %s", session.full_jid); session.presence_buffer = {}; filters.add_filter(session, "stanzas/out", presence_filter); end local function restore_session(event) local session = event.origin; if not session.presence_buffer then return; end filters.remove_filter(session, "stanzas/out", presence_filter); module:log("debug", "Flushing buffer for %s", session.full_jid); for jid, presence in pairs(session.presence_buffer) do session.send(presence); end session.presence_buffer = nil; end module:hook("csi-client-inactive", throttle_session); module:hook("csi-client-active", restore_session);