monk-afk / filterplus

Chat filter and censor for Minetest. Includes mute command, player tags, and mention highlight.

FilterPlus

Primarily a chat filter, also censors content via API.

Copyright (c) 2023 monk

Details

• Blacklisted words indexed by pattern.
• Robust Whitelist.
• Censors words with asterisk(*).
• Lowers casing in messages exceeding max_caps setting.
• Support for Chat rank/tags.
• Mention player by name sends green text messages.
• Filter list management and chat moderation commands.
• Removes URL links.
• API will return true with the word censored by asterisk.

Chat commands

Mute players from using public chat, does not mute private messaging. Applied to players by IP address, so any players currently online or alt accounts to join will be muted until lifted. Can be used on offline players if they were online recently (approx 1 hour).

• Mute/Unmute player(s) by associated IP (requires mute priv)
  • Default is 2 minutes, two hour max

/mute <playername> [<minutes>]
/unmute <playername>

Filter List management

• Manage mod_storage filter lists (requires blacklist priv)

/filter <blacklist>|<whitelist>|<delete>|<search> <string>

• Add word to whitelist, or blacklist (will automatically remove word from opposite list) /filter whitelist word /filter blacklist word

• Delete word from all filter lists (bug: it doesn't) /filter delete word

• Search for word in either filter lists /filter search word

• Save filter lists to mod_storage.

• Run this after making changes to the mod_storage filters via command

  • To do: Needs update to only save words in mod storage

/filter_save

• Reload the filter lists.
  • Run this after modifying the word filter files whitelist.lua or blacklist.lua.

/filter_reload

Message Tags

Player nametag in chat default format is: <PlayerName>.

Supported tags from mods if available: Ranks, Factions, Exp.

The minetest.conf setting must be true, and pass required values.

• filterplus_ranks: {Rank} requires a string and ColorString
• filterplus_factions: [Faction] requires a string and ColorString
• filterplus_exp: (Exp) requires integer or string

Tag order is: {Rank}[Faction](Exp)<PlayerName> message

API

Not limited to chat messages. Strings from any mod can be checked against filter api:

filterplus_api.check_word(string)

This will return with the string, censored or not, with boolean:

return "This **** is censored", true

return "This word is not censored", false

Additional Info

• UTF-16 or non-ASCII characters

Adding words by command containing UTF-8 characters are saved to mod_storage as UTF reference codes (\u00f). This will cause many false-positives.

• Pattern matches from blacklist are ordered

Filter lists are sorted by numerical index, not alphabetically. This allows for word priority when list checking, for example, if luck and luk are blacklisted, saying lucky will catch the former first.

If tex is a blacklisted word, all instances containing tex are filtered, such as text, context, contextual, etc. This means blacklisting these branch words is redundant, root words should be sufficient.

Current Version 0.1.4