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annotate mod_measure_client_features/mod_measure_client_features.lua @ 6317:7b693a5539ad

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mod_auth_http_async: Update documentation The required async APIs were included in 0.10.0, but at the time of this writing we only consider 0.12.x and later supported. The fallback sync API would have made it work with even earlier versions, but I don't remember specifically and it doesn't matter.
author Kim Alvefur <zash@zash.se>
date Tue, 02 Sep 2025 21:32:01 +0200
parents 3e0bce07f66c
children
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5fdbf416bd40 mod_measure_client_features: Add a module to count the features of each connected client
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1 module:set_global();
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2
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3 local statsmanager = require "prosody.core.statsmanager";
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4
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5 local measure_features = module:metric("gauge", "features", "", "Features advertized by clients", {"feature"});
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6
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7 local disco_ns = "http://jabber.org/protocol/disco#info";
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8
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9 module:hook("stats-update", function ()
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10 local total = 0;
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11 local buckets = {};
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12 for _, session in pairs(prosody.full_sessions) do
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13 local disco_info = session.caps_cache;
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14 if disco_info ~= nil then
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15 for feature in disco_info:childtags("feature", disco_ns) do
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16 local var = feature.attr.var;
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17 if var ~= nil then
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18 if buckets[var] == nil then
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19 buckets[var] = 0;
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20 end
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21 buckets[var] = buckets[var] + 1;
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22 end
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23 end
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24 total = total + 1;
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25 end
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26 end
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27 statsmanager.cork();
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28 measure_features:clear();
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29 for bucket, count in pairs(buckets) do
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30 measure_features:with_labels(bucket):add(count);
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31 end
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32 measure_features:with_labels("total"):add(total);
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33 statsmanager.uncork();
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34 end)