resolve SengokuCola/MaiMBot#167 根据正则表达式过滤消息

src/plugins/chat/bot.py

@@ -1,3 +1,4 @@
+import re
 import time
 from random import random
 
@@ -75,6 +76,14 @@ class ChatBot:
                 logger.info(f"[过滤词识别]消息中含有{word}，filtered")
                 return
 
+        # 正则表达式过滤
+        for pattern in global_config.ban_words_regex:
+            if re.search(pattern, message.detailed_plain_text):
+                logger.info(
+                    f"[{message.group_name}]{message.user_nickname}:{message.processed_plain_text}")
+                logger.info(f"[正则表达式过滤]消息匹配到{pattern}，filtered")
+                return
+
         current_time = time.strftime("%Y-%m-%d %H:%M:%S", time.localtime(message.time))
 
         # topic=await topic_identifier.identify_topic_llm(message.processed_plain_text)

src/plugins/chat/config.py

@@ -43,6 +43,7 @@ class BotConfig:
     EMOJI_CHECK_PROMPT: str = "符合公序良俗"  # 表情包过滤要求
 
     ban_words = set()
+    ban_words_regex = set()
 
     max_response_length: int = 1024  # 最大回复长度
 
@@ -277,6 +278,9 @@ class BotConfig:
                 config.response_interested_rate_amplifier = msg_config.get("response_interested_rate_amplifier",
                                                                            config.response_interested_rate_amplifier)
                 config.down_frequency_rate = msg_config.get("down_frequency_rate", config.down_frequency_rate)
+            
+            if config.INNER_VERSION in SpecifierSet(">=0.0.5"):
+                config.ban_words_regex = msg_config.get("ban_words_regex", config.ban_words_regex)
 
         def memory(parent: dict):
             memory_config = parent["memory"]