249 lines
8.3 KiB
Lua
249 lines
8.3 KiB
Lua
local get_room_from_jid = module:require "util".get_room_from_jid;
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local room_jid_match_rewrite = module:require "util".room_jid_match_rewrite;
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local is_healthcheck_room = module:require "util".is_healthcheck_room;
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local jid_resource = require "util.jid".resource;
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local ext_events = module:require "ext_events"
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local st = require "util.stanza";
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local socket = require "socket";
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local json = require "util.json";
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local um_is_admin = require "core.usermanager".is_admin;
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-- we use async to detect Prosody 0.10 and earlier
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local have_async = pcall(require, "util.async");
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if not have_async then
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module:log("warn", "speaker stats will not work with Prosody version 0.10 or less.");
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return;
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end
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local muc_component_host = module:get_option_string("muc_component");
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if muc_component_host == nil then
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log("error", "No muc_component specified. No muc to operate on!");
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return;
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end
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log("info", "Starting speakerstats for %s", muc_component_host);
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local function is_admin(jid)
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return um_is_admin(jid, module.host);
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end
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-- receives messages from client currently connected to the room
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-- clients indicates their own dominant speaker events
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function on_message(event)
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-- Check the type of the incoming stanza to avoid loops:
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if event.stanza.attr.type == "error" then
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return; -- We do not want to reply to these, so leave.
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end
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local speakerStats
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= event.stanza:get_child('speakerstats', 'http://jitsi.org/jitmeet');
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if speakerStats then
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local roomAddress = speakerStats.attr.room;
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local room = get_room_from_jid(room_jid_match_rewrite(roomAddress));
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if not room then
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log("warn", "No room found %s", roomAddress);
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return false;
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end
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if not room.speakerStats then
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log("warn", "No speakerStats found for %s", roomAddress);
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return false;
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end
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local roomSpeakerStats = room.speakerStats;
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local from = event.stanza.attr.from;
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local occupant = room:get_occupant_by_real_jid(from);
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if not occupant then
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log("warn", "No occupant %s found for %s", from, roomAddress);
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return false;
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end
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local newDominantSpeaker = roomSpeakerStats[occupant.jid];
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local oldDominantSpeakerId = roomSpeakerStats['dominantSpeakerId'];
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if oldDominantSpeakerId then
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local oldDominantSpeaker = roomSpeakerStats[oldDominantSpeakerId];
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if oldDominantSpeaker then
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oldDominantSpeaker:setDominantSpeaker(false);
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end
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end
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if newDominantSpeaker then
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newDominantSpeaker:setDominantSpeaker(true);
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end
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room.speakerStats['dominantSpeakerId'] = occupant.jid;
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end
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return true
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end
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--- Start SpeakerStats implementation
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local SpeakerStats = {};
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SpeakerStats.__index = SpeakerStats;
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function new_SpeakerStats(nick, context_user)
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return setmetatable({
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totalDominantSpeakerTime = 0;
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_dominantSpeakerStart = 0;
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nick = nick;
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context_user = context_user;
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displayName = nil;
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}, SpeakerStats);
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end
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-- Changes the dominantSpeaker data for current occupant
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-- saves start time if it is new dominat speaker
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-- or calculates and accumulates time of speaking
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function SpeakerStats:setDominantSpeaker(isNowDominantSpeaker)
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-- log("debug", "set isDominant %s for %s", tostring(isNowDominantSpeaker), self.nick);
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if not self:isDominantSpeaker() and isNowDominantSpeaker then
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self._dominantSpeakerStart = socket.gettime()*1000;
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elseif self:isDominantSpeaker() and not isNowDominantSpeaker then
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local now = socket.gettime()*1000;
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local timeElapsed = math.floor(now - self._dominantSpeakerStart);
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self.totalDominantSpeakerTime
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= self.totalDominantSpeakerTime + timeElapsed;
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self._dominantSpeakerStart = 0;
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end
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end
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-- Returns true if the tracked user is currently a dominant speaker.
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function SpeakerStats:isDominantSpeaker()
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return self._dominantSpeakerStart > 0;
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end
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--- End SpeakerStats
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-- create speakerStats for the room
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function room_created(event)
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local room = event.room;
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if is_healthcheck_room(room.jid) then
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return;
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end
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room.speakerStats = {};
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end
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-- Create SpeakerStats object for the joined user
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function occupant_joined(event)
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local occupant, room = event.occupant, event.room;
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if is_healthcheck_room(room.jid) or is_admin(occupant.bare_jid) then
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return;
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end
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local occupant = event.occupant;
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local nick = jid_resource(occupant.nick);
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if room.speakerStats then
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-- lets send the current speaker stats to that user, so he can update
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-- its local stats
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if next(room.speakerStats) ~= nil then
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local users_json = {};
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for jid, values in pairs(room.speakerStats) do
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-- skip reporting those without a nick('dominantSpeakerId')
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-- and skip focus if sneaked into the table
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if values.nick ~= nil and values.nick ~= 'focus' then
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local totalDominantSpeakerTime = values.totalDominantSpeakerTime;
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if totalDominantSpeakerTime > 0 or room:get_occupant_jid(jid) == nil then
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-- before sending we need to calculate current dominant speaker state
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if values:isDominantSpeaker() then
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local timeElapsed = math.floor(socket.gettime()*1000 - values._dominantSpeakerStart);
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totalDominantSpeakerTime = totalDominantSpeakerTime + timeElapsed;
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end
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users_json[values.nick] = {
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displayName = values.displayName,
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totalDominantSpeakerTime = totalDominantSpeakerTime
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};
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end
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end
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end
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if next(users_json) ~= nil then
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local body_json = {};
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body_json.type = 'speakerstats';
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body_json.users = users_json;
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local stanza = st.message({
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from = module.host;
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to = occupant.jid; })
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:tag("json-message", {xmlns='http://jitsi.org/jitmeet'})
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:text(json.encode(body_json)):up();
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room:route_stanza(stanza);
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end
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end
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local context_user = event.origin and event.origin.jitsi_meet_context_user or nil;
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room.speakerStats[occupant.jid] = new_SpeakerStats(nick, context_user);
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end
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end
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-- Occupant left set its dominant speaker to false and update the store the
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-- display name
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function occupant_leaving(event)
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local room = event.room;
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if is_healthcheck_room(room.jid) then
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return;
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end
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if not room.speakerStats then
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return;
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end
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local occupant = event.occupant;
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local speakerStatsForOccupant = room.speakerStats[occupant.jid];
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if speakerStatsForOccupant then
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speakerStatsForOccupant:setDominantSpeaker(false);
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-- set display name
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local displayName = occupant:get_presence():get_child_text(
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'nick', 'http://jabber.org/protocol/nick');
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speakerStatsForOccupant.displayName = displayName;
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end
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end
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-- Conference ended, send speaker stats
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function room_destroyed(event)
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local room = event.room;
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if is_healthcheck_room(room.jid) then
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return;
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end
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ext_events.speaker_stats(room, room.speakerStats);
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end
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module:hook("message/host", on_message);
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-- executed on every host added internally in prosody, including components
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function process_host(host)
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if host == muc_component_host then -- the conference muc component
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module:log("info","Hook to muc events on %s", host);
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local muc_module = module:context(host);
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muc_module:hook("muc-room-created", room_created, -1);
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muc_module:hook("muc-occupant-joined", occupant_joined, -1);
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muc_module:hook("muc-occupant-pre-leave", occupant_leaving, -1);
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muc_module:hook("muc-room-destroyed", room_destroyed, -1);
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end
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end
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if prosody.hosts[muc_component_host] == nil then
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module:log("info","No muc component found, will listen for it: %s", muc_component_host)
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-- when a host or component is added
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prosody.events.add_handler("host-activated", process_host);
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else
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process_host(muc_component_host);
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end
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