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annotate mod_admin_probe/mod_admin_probe.lua @ 4877:adc6241e5d16

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mod_measure_process: Report the enforced limit The soft limit is what the kernel actually enforces, while the hard limit is is how far you can change the soft limit without privileges. Unless the process dynamically adjusts the soft limit, knowing the hard limit is not as useful as knowing the soft limit. Reporting the soft limit and the number of in-use FDs allows placing alerts on expressions like 'process_open_fds / process_max_fds >= 0.95'
author Kim Alvefur <zash@zash.se>
date Tue, 18 Jan 2022 18:55:20 +0100
parents f78661861e98
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1281
f78661861e98 mod_admin_probe: Module allowing server administrators to probe any user
Florian Zeitz <florob@babelmonkeys.de>
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1 -- Prosody IM
f78661861e98 mod_admin_probe: Module allowing server administrators to probe any user
Florian Zeitz <florob@babelmonkeys.de>
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2 -- Copyright (C) 2014 Florian Zeitz
f78661861e98 mod_admin_probe: Module allowing server administrators to probe any user
Florian Zeitz <florob@babelmonkeys.de>
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3 --
f78661861e98 mod_admin_probe: Module allowing server administrators to probe any user
Florian Zeitz <florob@babelmonkeys.de>
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4 -- This project is MIT/X11 licensed. Please see the
f78661861e98 mod_admin_probe: Module allowing server administrators to probe any user
Florian Zeitz <florob@babelmonkeys.de>
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5 -- COPYING file in the source package for more information.
f78661861e98 mod_admin_probe: Module allowing server administrators to probe any user
Florian Zeitz <florob@babelmonkeys.de>
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6 --
f78661861e98 mod_admin_probe: Module allowing server administrators to probe any user
Florian Zeitz <florob@babelmonkeys.de>
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7
f78661861e98 mod_admin_probe: Module allowing server administrators to probe any user
Florian Zeitz <florob@babelmonkeys.de>
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8 local presence = module:depends("presence");
f78661861e98 mod_admin_probe: Module allowing server administrators to probe any user
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9 local send_presence_of_available_resources = presence.send_presence_of_available_resources;
f78661861e98 mod_admin_probe: Module allowing server administrators to probe any user
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10
f78661861e98 mod_admin_probe: Module allowing server administrators to probe any user
Florian Zeitz <florob@babelmonkeys.de>
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11 local hosts = prosody.hosts;
f78661861e98 mod_admin_probe: Module allowing server administrators to probe any user
Florian Zeitz <florob@babelmonkeys.de>
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12 local core_post_stanza = prosody.core_post_stanza;
f78661861e98 mod_admin_probe: Module allowing server administrators to probe any user
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13
f78661861e98 mod_admin_probe: Module allowing server administrators to probe any user
Florian Zeitz <florob@babelmonkeys.de>
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14 local st = require "util.stanza";
f78661861e98 mod_admin_probe: Module allowing server administrators to probe any user
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15 local is_admin = require "core.usermanager".is_admin;
f78661861e98 mod_admin_probe: Module allowing server administrators to probe any user
Florian Zeitz <florob@babelmonkeys.de>
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16 local jid_split = require "util.jid".split;
f78661861e98 mod_admin_probe: Module allowing server administrators to probe any user
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17
f78661861e98 mod_admin_probe: Module allowing server administrators to probe any user
Florian Zeitz <florob@babelmonkeys.de>
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18 module:hook("presence/bare", function(data)
f78661861e98 mod_admin_probe: Module allowing server administrators to probe any user
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19 local origin, stanza = data.origin, data.stanza;
f78661861e98 mod_admin_probe: Module allowing server administrators to probe any user
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20 local to, from, type = stanza.attr.to, stanza.attr.from, stanza.attr.type;
f78661861e98 mod_admin_probe: Module allowing server administrators to probe any user
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21 local node, host = jid_split(to);
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22
f78661861e98 mod_admin_probe: Module allowing server administrators to probe any user
Florian Zeitz <florob@babelmonkeys.de>
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23 if type ~= "probe" then return; end
f78661861e98 mod_admin_probe: Module allowing server administrators to probe any user
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24 if not is_admin(from, module.host) then return; end
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25
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26 if 0 == send_presence_of_available_resources(node, host, from, origin) then
f78661861e98 mod_admin_probe: Module allowing server administrators to probe any user
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27 core_post_stanza(hosts[host], st.presence({from=to, to=from, type="unavailable"}), true);
f78661861e98 mod_admin_probe: Module allowing server administrators to probe any user
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28 end
f78661861e98 mod_admin_probe: Module allowing server administrators to probe any user
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29 return true;
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30 end, 10);