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filter: improve by checking message word-by-word

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fixes an issue where the filter would detect a word that was directly present in the chat message. word-by-word checking does mean that more words will be missed, but words that aren't in the message will not be accidentally detected.
This commit is contained in:
octacian 2016-12-25 19:11:21 -08:00
parent 4351b2d33d
commit 1d6bec612f
1 changed files with 30 additions and 4 deletions
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34
filter.lua
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@ -1,5 +1,31 @@
-- mods/servertools/filter.lua
--[[ language filter to automatically kick and or ban players.]]--
--[[ language filter to automatically kick and or ban players. ]]--
--[[
___ ___ _ _ ___
| __|_ _| \| | \
| _| | || .` | |) |
|_| |___|_|\_|___/
]]
-- [function] find in string
local function find_word(str, word)
if not str and not word then return end -- something's wrong
-- [loop] each word in str
for iword in str:gmatch("%w+") do
if iword == word then return true end
end
end
--[[
__ __ _ ___ _ _
| \/ | /_\ |_ _| \| |
| |\/| |/ _ \ | || .` |
|_| |_/_/ \_\___|_|\_|
]]
-- load phrase table
local word = datalib.table.read(st.modpath.."/phrase.db")
@ -12,7 +38,7 @@ for i, phrase in ipairs(word) do
-- ignore commands
if message:sub(1, 1) ~= "/" then
-- filter for word(s)
if msg:find(phrase.word) ~= nil then
if find_word(msg, phrase.word) ~= nil then
-- warn player
minetest.chat_send_player(name, 'Please do not use emotional words, including "'..phrase.word..'," in the chat.')
return true -- prevent message from showing in chat
@ -30,7 +56,7 @@ for i, phrase in ipairs(word) do
-- ignore commands
if message:sub(1, 1) ~= "/" then
-- filter for word(s)
if msg:find(phrase.word) ~= nil then
if find_word(msg, phrase.word) ~= nil then
-- kick player
minetest.kick_player(name, 'Please do not use emotional or innappropriate words, including "'..phrase.word..'," in the chat.')
minetest.chat_send_all("*** Kicked "..name.." for using innappropriate language.") -- print to chat
@ -50,7 +76,7 @@ for i, phrase in ipairs(word) do
-- ignore commands
if message:sub(1, 1) ~= "/" then
-- filter for word(s)
if msg:find(phrase.word) ~= nil then
if find_word(msg, phrase.word) ~= nil then
-- ban player
xban.ban_player(name, "servertools:filter", "5h", 'Used emotional or innappropriate words, including "'..phrase.word..'," in the chat.')
minetest.chat_send_all("*** Banned"..name.." for using innappropriate language (5 hours).") -- print to chat