prosody
3dfcdcab5446
util/watchdog.lua

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util/watchdog.lua @ 12433:3dfcdcab5446 0.12

MUC: Allow kicking users with the same affiliation as the kicker (fixes #1724) This is allowed by XEP-0045, which states: "A moderator SHOULD NOT be allowed to revoke moderation privileges from someone with a higher affiliation than themselves (i.e., an unaffiliated moderator SHOULD NOT be allowed to revoke moderation privileges from an admin or an owner, and an admin SHOULD NOT be allowed to revoke moderation privileges from an owner)."
author Matthew Wild <mwild1@gmail.com>
date Wed, 23 Mar 2022 13:38:55 +0000
parent 8555:4f0f5b49bb03
child 12545:5059a639f61e
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0ed617f58404 util.watchdog: Watchdog timer library
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1 local timer = require "util.timer";
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2 local setmetatable = setmetatable;
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3 local os_time = os.time;
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4
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5 local _ENV = nil;
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6 -- luacheck: std none
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8 local watchdog_methods = {};
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9 local watchdog_mt = { __index = watchdog_methods };
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10
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11 local function new(timeout, callback)
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12 local watchdog = setmetatable({ timeout = timeout, last_reset = os_time(), callback = callback }, watchdog_mt);
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13 timer.add_task(timeout+1, function (current_time)
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14 local last_reset = watchdog.last_reset;
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15 if not last_reset then
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16 return;
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17 end
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18 local time_left = (last_reset + timeout) - current_time;
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19 if time_left < 0 then
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20 return watchdog:callback();
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21 end
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22 return time_left + 1;
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23 end);
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24 return watchdog;
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25 end
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27 function watchdog_methods:reset()
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28 self.last_reset = os_time();
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29 end
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30
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31 function watchdog_methods:cancel()
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32 self.last_reset = nil;
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33 end
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34
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35 return {
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36 new = new;
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37 };