Mercurial > prosody-modules
view mod_muc_dicebot/mod_muc_dicebot.lua @ 5243:d5dc8edb2695
mod_http_oauth2: Use more compact IDs
UUIDs are nice but so verbose!
The reduction in entropy for the nonce should be fine since the
timestamp is also counts towards this, and it changes every second
(modulo clock shenanigans), so the chances of someone managing to get
the same client_secret by registering with the same information at the
same time as another entity should be negligible.
author | Kim Alvefur <zash@zash.se> |
---|---|
date | Sat, 11 Mar 2023 22:46:27 +0100 |
parents | 785389a2d2b3 |
children |
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local muc = module:depends("muc"); local rand = require"util.random"; local s_match = string.match; local s_gmatch = string.gmatch; local t_insert = table.insert; local t_concat = table.concat; local rooms = module:get_option_set("muc_dicebot_rooms", nil); local xmlns_nick = "http://jabber.org/protocol/nick"; local function is_room_affected(roomjid) return not rooms or rooms:contains(roomjid) end local function roll(sides) if sides > 256 then return nil, "too many sides" end local factor = math.floor(256 / sides); local cutoff = sides * factor; module:log("error", "%d -> %d %d %d", sides, max, factor, cutoff); for i=1,10 do local randomness = string.byte(rand.bytes(1), 1); module:log("error", "%d", randomness); if randomness < cutoff then return (randomness % sides) + 1 end end return nil, "failed to find valid number" end local function muc_broadcast_message(event) if not is_room_affected(event.room.jid) then return end local stanza = event.stanza; local body = stanza:get_child("body"); if not body then return end local text = body:get_text(); module:log("error", "%q %q %q", stanza, body, text); local dice = s_match(text, "^[%.!]r%s(.+)$"); if not dice or dice == "" then return end local results = {}; local count = 0; local sum = 0; for ndice, sep, sides in s_gmatch(dice, "(%d*)([wd]?)(%d+)") do if not sep or sep == "" then sides = ndice .. sides ndice = "1" end local ndice = tonumber(ndice); count = count + ndice; if count > 100 then return true end local sides = tonumber(sides); for i=1,ndice do local value = roll(sides); t_insert(results, tostring(value)); sum = sum + value; end end body:text("\n⇒ "..t_concat(results, " ").." (sum: "..sum..")"); end module:hook("muc-broadcast-message", muc_broadcast_message);