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annotate mod_pubsub_stats/mod_pubsub_stats.lua @ 4381:a1256e376dca

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mod_invites_register_api: reroute register call The token from the URI was not used anyway. In addition, we now return the resulting JID because it’s the only way to be sure.
author Jonas Schäfer <jonas@wielicki.name>
date Mon, 25 Jan 2021 16:55:39 +0100
parents b2ce818ec19c
children
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b01ef74c9fc0 mod_pubsub_stats: Simple module that publishes stats in XEP-0039 format
Kim Alvefur <zash@zash.se>
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1 local st = require "util.stanza";
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2
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3 local pubsub = module:depends"pubsub";
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4
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5 local actor = module.host .. "/modules/" .. module.name;
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6
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7 local pubsub_xmlns = "http://jabber.org/protocol/pubsub"
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8
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9 local node = module:get_option_string(module.name .. "_node", "stats");
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10
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11 local function publish_stats(stats, stats_extra)
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12 local id = "current";
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13 local xitem = st.stanza("item", { xmlns = pubsub_xmlns, id = id })
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14 :tag("query", { xmlns = "http://jabber.org/protocol/stats" });
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16 for name, value in pairs(stats) do
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17 local stat_extra = stats_extra[name];
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18 local unit = stat_extra and stat_extra.units;
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19 xitem:tag("stat", { name = name, unit = unit, value = tostring(value) }):up();
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20 end
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21
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22 local ok, err = pubsub.service:publish(node, actor, id, xitem);
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23 if not ok then
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24 module:log("error", "Error publishing stats: %s", err);
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25 end
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26 end
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28 function module.load()
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29 pubsub.service:create(node, true, {
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30 persistent_items = false;
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31 max_items = 1;
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32 });
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33 pubsub.service:set_affiliation(node, true, actor, "publisher");
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34 end
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36 module:hook_global("stats-updated", function (event)
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37 publish_stats(event.stats, event.stats_extra);
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38 end);
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39
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40 function module.unload()
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41 pubsub.service:delete(node, true);
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42 end
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43
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44 module:hook("pubsub-summary/http://jabber.org/protocol/stats", function (event)
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45 local payload = event.payload;
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46 local summary = {};
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47 for stat in payload:childtags("stat") do
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48 if stat.attr.name and stat.attr.value then
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49 table.insert(summary, string.format("%s: %g %s", stat.attr.name, tonumber(stat.attr.value), stat.attr.units or ""));
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50 end
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51 end
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52 table.sort(summary);
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53 return table.concat(summary, "\n");
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54 end);
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