prosody-modules
8231774f5bfd
mod_measure_client_features/mod_measure_client_features.lua

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mod_measure_client_features/mod_measure_client_features.lua @ 4651:8231774f5bfd

mod_cloud_notify_encrypted: Ensure body substring remains valid UTF-8 The `body:sub()` call risks splitting the string in the middle of a multi-byte UTF-8 sequence. This should have been caught by util.stanza validation, but that would have caused some havoc, at the very least causing the notification to not be sent. There have been no reports of this happening. Likely because this module isn't widely deployed among users with languages that use many longer UTF-8 sequences. The util.encodings.utf8.valid() function is O(n) where only the last sequence really needs to be checked, but it's in C and expected to be fast.
author Kim Alvefur <zash@zash.se>
date Sun, 22 Aug 2021 13:22:59 +0200
parent 3374:5fdbf416bd40
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
3374
5fdbf416bd40 mod_measure_client_features: Add a module to count the features of each connected client
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
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1 module:set_global();
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2
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3 local measure = require"core.statsmanager".measure;
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4
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5 local disco_ns = "http://jabber.org/protocol/disco#info";
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6
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7 local counters = {
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8 total = measure("amount", "client_features.total");
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9 };
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10
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11 module:hook("stats-update", function ()
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12 local total = 0;
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13 local buckets = {};
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14 for _, session in pairs(prosody.full_sessions) do
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15 local disco_info = session.caps_cache;
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16 if disco_info ~= nil then
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17 for feature in disco_info:childtags("feature", disco_ns) do
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18 local var = feature.attr.var;
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19 if var ~= nil then
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20 if buckets[var] == nil then
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21 buckets[var] = 0;
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22 end
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23 buckets[var] = buckets[var] + 1;
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24 end
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25 end
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26 total = total + 1;
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27 end
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28 end
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29 for bucket, count in pairs(buckets) do
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30 if counters[bucket] == nil then
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31 counters[bucket] = measure("amount", "client_features."..bucket);
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32 end
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33 counters[bucket](count);
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34 end
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35 counters.total(total);
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36 end)