Mercurial > prosody-modules

annotate mod_muc_dicebot/mod_muc_dicebot.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 785389a2d2b3
children
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4579
b305814bd930 mod_muc_dicebot: A thing to roll dice
Jonas Schäfer <jonas@wielicki.name>
parents:
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1 local muc = module:depends("muc");
b305814bd930 mod_muc_dicebot: A thing to roll dice
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2 local rand = require"util.random";
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3
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4 local s_match = string.match;
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5 local s_gmatch = string.gmatch;
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6 local t_insert = table.insert;
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7 local t_concat = table.concat;
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8
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9 local rooms = module:get_option_set("muc_dicebot_rooms", nil);
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10 local xmlns_nick = "http://jabber.org/protocol/nick";
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11
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12 local function is_room_affected(roomjid)
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13 return not rooms or rooms:contains(roomjid)
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14 end
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15
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16 local function roll(sides)
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17 if sides > 256 then
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18 return nil, "too many sides"
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19 end
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20 local factor = math.floor(256 / sides);
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Jonas Schäfer <jonas@wielicki.name>
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21 local cutoff = sides * factor;
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22 module:log("error", "%d -> %d %d %d", sides, max, factor, cutoff);
b305814bd930 mod_muc_dicebot: A thing to roll dice
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23 for i=1,10 do
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24 local randomness = string.byte(rand.bytes(1), 1);
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25 module:log("error", "%d", randomness);
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26 if randomness < cutoff then
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27 return (randomness % sides) + 1
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28 end
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29 end
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30 return nil, "failed to find valid number"
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31 end
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32
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33 local function muc_broadcast_message(event)
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34 if not is_room_affected(event.room.jid) then
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35 return
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36 end
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37
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38 local stanza = event.stanza;
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39 local body = stanza:get_child("body");
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40 if not body then
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41 return
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42 end
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43
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b305814bd930 mod_muc_dicebot: A thing to roll dice
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44 local text = body:get_text();
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45 module:log("error", "%q %q %q", stanza, body, text);
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Jonas Schäfer <jonas@wielicki.name>
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46 local dice = s_match(text, "^[%.!]r%s(.+)$");
b305814bd930 mod_muc_dicebot: A thing to roll dice
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47 if not dice or dice == "" then
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48 return
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49 end
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50
b305814bd930 mod_muc_dicebot: A thing to roll dice
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51 local results = {};
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52 local count = 0;
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53 local sum = 0;
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54 for ndice, sep, sides in s_gmatch(dice, "(%d*)([wd]?)(%d+)") do
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55 if not sep or sep == "" then
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56 sides = ndice .. sides
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57 ndice = "1"
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58 end
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59 local ndice = tonumber(ndice);
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60 count = count + ndice;
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61 if count > 100 then
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Jonas Schäfer <jonas@wielicki.name>
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62 return true
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63 end
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64 local sides = tonumber(sides);
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65 for i=1,ndice do
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66 local value = roll(sides);
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67 t_insert(results, tostring(value));
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68 sum = sum + value;
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69 end
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70 end
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71 body:text("\n⇒ "..t_concat(results, " ").." (sum: "..sum..")");
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72 end
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73
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74 module:hook("muc-broadcast-message", muc_broadcast_message);