Finished writing the main function. Detects cheese keywords in messages and added user/server blacklist/whitelist.

POLICY.md

@@ -7,14 +7,10 @@ Without storing some aspects of your user data, the bot would not be able to run
 
 We collect the following:
 
-* User IDs
+* User IDs and Guild IDs
 
     Required for functionality of the blacklist command.
 
-* Guild/Channel ID pairs
-
-    Required for the functionality of the announcements and announcements command.
-
 * Messages
 
     Messages are not stored, but they are used for the main functionality of cheeseBot.

src/bot.rb

@@ -16,18 +16,31 @@
 
 require 'discordrb'
 require 'securerandom'
+require_relative 'events/message_check'
 
 class CheeseBot
     def initialize
+        puts "Initializing bot..."
         @bot = Discordrb::Bot.new(
             token: ENV['BOT_TOKEN'],
-            intents: [:servers, :server_messages]
+            intents: [:servers, :server_messages],
         )
         
+        puts "Registering the Message Checker..."
+        MessageCheck.register(@bot)
+
+        puts "Initializing database..."
+        Database.setup
+        
+        puts "Loading commands..."
         load_commands
+
+        puts "Starting bot..."
         start_bot
     end
 
+
+
     def run
         @bot.run
     end

src/commands/not_cheese_related/blacklist.rb

@@ -0,0 +1,60 @@
+# cheeseBot
+# Copyright (C) 2026 Eri (csxkdv/nxkdv) nxkdv@thenight.club
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+require_relative '../../modules/database'
+
+module Commands
+    module Blacklist
+        extend self
+
+        def register(bot)
+            cmd_key = :blacklist
+            cmd_desc = "Blacklist yourself from the trigger DMs (using the command again will whitelist you.)"
+
+            bot.register_application_command(cmd_key, cmd_desc, server_id: ENV['SERVER_ID'])
+
+            bot.application_command(cmd_key) do |event|
+                added = Database.toggle_user_blacklist(event.user.id)
+
+                if added
+                    event.respond(content: "You have been added to the blacklist. You will no longer receive DMs.")
+                else
+                    event.respond(content: "You have been removed from the blacklist. You will now receive DMs.")
+                end
+            end
+
+            cmd_key_server = :server_blacklist
+            cmd_desc_server = "Blacklist the server from the trigger DMs (using the command again will whitelist the server.)"
+
+            bot.register_application_command(cmd_key_server, cmd_desc_server,  server_id: ENV['SERVER_ID'])
+
+            bot.application_command(cmd_key_server) do |event|
+                unless event.user.permission?(:administrator)
+                    event.respond(content: "You're not an admin. You can't use this command.", ephemeral: true)
+                    next
+                end
+
+                added = Database.toggle_server_blacklist(event.server.id)
+
+                if added
+                    event.respond(content: "Server has been added to the blacklist. This server will no longer receive DMs.")
+                else
+                    event.respond(content: "Server has been removed from the blacklist. This server will now receive DMs.")
+                end
+            end
+        end
+    end
+end

src/events/message_check.rb

@@ -0,0 +1,50 @@
+# cheeseBot
+# Copyright (C) 2026 Eri (csxkdv/nxkdv) nxkdv@thenight.club
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+require_relative '../modules/cheese_checker'
+require_relative '../modules/database'
+
+module MessageCheck
+    def self.register(bot)
+        bot.message do |event|
+            next if event.user.bot_account || event.server.nil?
+
+            cheese_content = CheeseChecker.check_content(event.content)
+            next unless cheese_content
+
+            event.message.react("🧀")
+
+            next if Database.server_blacklisted?(event.server.id)
+            next if Database.user_blacklisted?(event.user.id)
+
+            begin
+                event.user.pm.send_embed do |embed|
+                    embed.title = "Cheese Detected!"
+                    embed.description = cheese_content
+                    
+                    embed.color = rand(0xFFFFFF)
+                    embed.timestamp = Time.now
+                    
+                    embed.footer = Discordrb::Webhooks::EmbedFooter.new(
+                        text: "Use /blacklist to not receive DMs anymore"
+                    )
+                end
+            rescue Discordrb::Errors::NoPermission
+                puts "Could not DM user #{event.user.username} (#{event.user.id})"
+            end
+        end
+    end
+end

src/lists/cheese_words.rb

@@ -0,0 +1,86 @@
+module Lists
+    CHEESE_WORDS = [
+        "abertam",
+        "abondance",
+        "acapella",
+        "accasciato",
+        "ackawi",
+        "acorn",
+        "adelost",
+        "backstein",
+        "bergader",
+        "bonifaz",
+        "brie",
+        "burrata",
+        "butterkäse",
+        "cambozola",
+        "camembert",
+        "caseus",
+        "casgiu",
+        "cheddar",
+        "cheese",
+        "chiiz",
+        "chisi",
+        "chizi",
+        "colby",
+        "cottage",
+        "cuku",
+        "cáis",
+        "djathë",
+        "edelpilzkäse",
+        "farmaajo",
+        "feta",
+        "formaggio",
+        "formatge",
+        "fromage",
+        "fromazy",
+        "fromaĝo",
+        "fwomaj",
+        "gazta",
+        "gorgonzola",
+        "gouda",
+        "halloumi",
+        "handkäse",
+        "harzer",
+        "hirtenkäse",
+        "hohenheim",
+        "juust",
+        "juusto",
+        "kaas",
+        "kashkaval",
+        "keju",
+        "keso",
+        "kochkäse",
+        "käse",
+        "limburger",
+        "milbenkäse",
+        "mozzarella",
+        "nieheimer",
+        "obatzda",
+        "ostur",
+        "paneer",
+        "parmesan",
+        "pendir",
+        "penêr",
+        "pepperjack",
+        "provolone",
+        "quark",
+        "queijo",
+        "queixo",
+        "queso",
+        "raclette",
+        "rauchkäse",
+        "ricotta",
+        "roquefort",
+        "sajt",
+        "sires",
+        "sisi",
+        "spundekäs",
+        "swiss",
+        "sūris",
+        "tsiis",
+        "ziegel",
+        "チーズ",
+        "\N{CHEESE WEDGE}"
+    ].freeze
+end

src/modules/cheese_checker.rb

@@ -0,0 +1,38 @@
+# cheeseBot
+# Copyright (C) 2026 Eri (csxkdv/nxkdv) nxkdv@thenight.club
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+require_relative '../lists/cheese_words'
+
+module CheeseChecker
+    WORDS_LIST = Lists::CHEESE_WORDS
+    PUNCTUATION = "!\"£$%^&*()[]{}'@#~;:,<.>/?-+\\|`¬"
+
+    NO_CHEESE = /[\s#{Regexp.escape(PUNCTUATION)}]*/
+
+    pattern_strings = WORDS_LIST.map do |word|
+        Regexp.escape(word).chars.map { |char| char + NO_CHEESE.source }.join
+    end
+
+    CHEESE_REGEX = /((?:#{pattern_strings.join('|')}))/im
+
+    def self.check_content(content)
+        changed_content = content.gsub(CHEESE_REGEX, "**\\1**")
+
+        return nil if changed_content == content
+
+        changed_content
+    end
+end

src/modules/database.rb

@@ -0,0 +1,118 @@
+# cheeseBot
+# Copyright (C) 2026 Eri (csxkdv/nxkdv) nxkdv@thenight.club
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+require 'pg'
+
+module Database
+    DB_NAME = ENV['DB_NAME']
+    DB_USER = ENV['DB_USER']
+    DB_HOST = ENV['DB_HOST']
+    DB_PASSWORD = ENV['DB_PASSWORD']
+
+    def self.setup
+        create_database_if_not_exists
+        create_tables
+    end
+
+    def self.connect(db_name = DB_NAME)
+        PG.connect(
+            dbname: db_name,
+            user: DB_USER,
+            host: DB_HOST,
+            password: DB_PASSWORD
+            )
+    rescue PG::Error => e
+        puts "Database connection error: #{e.message}"
+        exit
+    end
+
+    def self.user_blacklisted?(user_id)
+        exists?("blacklist", user_id)
+    end
+
+    def self.server_blacklisted?(server_id)
+        exists?("server_blacklist", server_id)
+    end
+
+    def self.toggle_user_blacklist(user_id)
+        toggle("blacklist", user_id)
+    end
+
+    def self.toggle_server_blacklist(server_id)
+        toggle("server_blacklist", server_id)
+    end
+
+    private
+
+    def self.exists?(table, id)
+        conn = connect
+        result = conn.exec_params("SELECT 1 FROM #{table} WHERE id = $1", [id])
+        conn.close
+        !result.ntuples.zero?
+    end
+
+    def self.toggle(table, id)
+        conn = connect
+
+        if exists?(table, id)
+            conn.exec_params("DELETE FROM #{table} WHERE id = $1", [id])
+            conn.close
+            return false
+        else
+            conn.exec_params("INSERT INTO #{table} (id) VALUES ($1)", [id])
+            conn.close
+            return true
+        end
+    end
+
+    def self.create_database_if_not_exists
+        begin
+            conn = connect('postgres')
+        rescue PG::Error
+            puts "Could not connect to 'postgres' system database. Please create '#{DB_NAME}' manually."
+            return
+        end
+
+        result = conn.exec_params("SELECT 1 FROM pg_database WHERE datname = $1", [DB_NAME])
+
+        if result.ntuples.zero?
+            puts "Database '#{DB_NAME}' not found. Creating it..."
+            conn.exec("CREATE DATABASE \"#{DB_NAME}\"") 
+            puts "Database '#{DB_NAME}' created successfully!"
+        end
+        conn.close
+    end
+
+    def self.create_tables
+        conn = connect
+        
+        conn.exec(<<~SQL)
+        CREATE TABLE IF NOT EXISTS blacklist (
+            id BIGINT PRIMARY KEY
+        );
+        SQL
+
+        conn.exec(<<~SQL)
+        CREATE TABLE IF NOT EXISTS server_blacklist (
+            id BIGINT PRIMARY KEY
+        );
+        SQL
+        
+        puts "Tables verified."
+        conn.close
+    end
+end
+