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mod_muc_markers/mod_muc_markers.lua @ 4012:fd582067c732
mod_lastlog2: Store last timestamp per account event
Incompatible with mod_lastlog and other modules using its data due to
use of map store
author | Kim Alvefur <zash@zash.se> |
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date | Sun, 29 Mar 2020 15:09:25 +0200 |
parent | 3972:45c5603a6c07 |
child | 4024:95882b487ed2 |
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-- Track messages received by users of the MUC -- We rewrite the 'id' attribute of outgoing stanzas to match the stanza (archive) id -- This module is therefore incompatible with the muc#stable_id feature -- We rewrite the id because XEP-0333 doesn't tell clients explicitly which id to use -- in marker reports. However it implies the 'id' attribute through examples, and this -- is what some clients implement. -- Notably Conversations will ack the origin-id instead. We need to update the XEP to -- clarify the correct behaviour. local xmlns_markers = "urn:xmpp:chat-markers:0"; local muc_marker_map_store = module:open_store("muc_markers", "map"); local function get_stanza_id(stanza, by_jid) for tag in stanza:childtags("stanza-id", "urn:xmpp:sid:0") do if tag.attr.by == by_jid then return tag.attr.id; end end return nil; end module:hook("muc-broadcast-message", function (event) local stanza = event.stanza; local archive_id = get_stanza_id(stanza, event.room.jid); -- We are not interested in stanzas that didn't get archived if not archive_id then return; end -- Add stanza id as id attribute stanza.attr.id = archive_id; -- Add markable element to request markers from clients stanza:tag("markable", { xmlns = xmlns_markers }):up(); end, -1); module:hook("muc-occupant-groupchat", function (event) local marker = event.stanza:get_child("received", xmlns_markers); if not marker then return; end -- Store the id that the user has received to module:log("warn", "New marker for %s: %s", event.occupant.bare_jid, marker.attr.id); muc_marker_map_store:set(event.occupant.bare_jid, event.room.jid, marker.attr.id); -- Prevent stanza from reaching the room (it's just noise) return true; end); -- Public API function get_user_read_marker(user_jid, room_jid) return muc_marker_map_store:get(user_jid, room_jid); end