plugin: add banwords plugin

plugins/banwords/banwords.py

@@ -0,0 +1,63 @@
+# encoding:utf-8
+
+import json
+import os
+from bridge.context import ContextType
+from bridge.reply import Reply, ReplyType
+import plugins
+from plugins import *
+from common.log import logger
+from .WordsSearch import WordsSearch
+
+
+@plugins.register(name="Banwords", desc="判断消息中是否有敏感词、决定是否回复。", version="1.0", author="lanvent", desire_priority= 100)
+class Banwords(Plugin):
+    def __init__(self):
+        super().__init__()
+        try:
+            curdir=os.path.dirname(__file__)
+            config_path=os.path.join(curdir,"config.json")
+            conf=None
+            if not os.path.exists(config_path):
+                conf={"action":"ignore"}
+                with open(config_path,"w") as f:
+                    json.dump(conf,f,indent=4)
+            else:
+                with open(config_path,"r") as f:
+                    conf=json.load(f)
+            self.searchr = WordsSearch()
+            self.action = conf["action"]
+            banwords_path = os.path.join(curdir,"banwords.txt")
+            with open(banwords_path, 'r', encoding='utf-8') as f:
+                words=[]
+                for line in f:
+                    word = line.strip()
+                    if word:
+                        words.append(word)
+            self.searchr.SetKeywords(words)
+            self.handlers[Event.ON_HANDLE_CONTEXT] = self.on_handle_context
+            logger.info("[Banwords] inited")
+        except Exception as e:
+            logger.error("Banwords init failed: %s" % e)
+        
+
+
+    def on_handle_context(self, e_context: EventContext):
+
+        if e_context['context'].type not in [ContextType.TEXT,ContextType.IMAGE_CREATE]:
+            return
+        
+        content = e_context['context'].content
+        logger.debug("[Banwords] on_handle_context. content: %s" % content)
+        if self.action == "ignore":
+            f = self.searchr.FindFirst(content)
+            if f:
+                logger.info("Banwords: %s" % f["Keyword"])
+                e_context.action = EventAction.BREAK_PASS
+                return
+        elif self.action == "replace":
+            if self.searchr.ContainsAny(content):
+                reply = Reply(ReplyType.INFO, "发言中包含敏感词，请重试: \n"+self.searchr.Replace(content))
+                e_context['reply'] = reply
+                e_context.action = EventAction.BREAK_PASS
+                return