Mercurial > prosody-modules

annotate mod_muc_dicebot/mod_muc_dicebot.lua @ 5160:8474a3b80200

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mod_firewall: Fix 'is_admin' internal dependency rule #1797 (thanks diane) Looks like the boolean logic was inverted here. Instead, for now, simply check if is_admin is there. It is deprecated in trunk and was briefly removed before being brought back with a 'deprecated' warning as part of the new roles and permissions work. Making this dependency conditioned on the existence of the underlying function should make it work until it actually goes away for real.
author Kim Alvefur <zash@zash.se>
date Fri, 27 Jan 2023 23:06:25 +0100
parents 785389a2d2b3
children
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4579
b305814bd930 mod_muc_dicebot: A thing to roll dice
Jonas Schäfer <jonas@wielicki.name>
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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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21 local cutoff = sides * factor;
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22 module:log("error", "%d -> %d %d %d", sides, max, factor, cutoff);
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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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44 local text = body:get_text();
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45 module:log("error", "%q %q %q", stanza, body, text);
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46 local dice = s_match(text, "^[%.!]r%s(.+)$");
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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
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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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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);