server: fix slow profanity filter

server/reflector/processors/types.py

@@ -5,6 +5,7 @@ from pathlib import Path
 
 from profanityfilter import ProfanityFilter
 from pydantic import BaseModel, PrivateAttr
+from reflector.redis_cache import redis_cache
 
 PUNC_RE = re.compile(r"[.;:?!…]")
 
@@ -68,10 +69,14 @@ class Transcript(BaseModel):
         # Uncensored text
         return "".join([word.text for word in self.words])
 
+    @redis_cache(prefix="profanity", duration=3600 * 24 * 7)
+    def _get_censored_text(self, text: str):
+        return profanity_filter.censor(text).strip()
+
     @property
     def text(self):
         # Censored text
-        return profanity_filter.censor(self.raw_text).strip()
+        return self._get_censored_text(self.raw_text)
 
     @property
     def human_timestamp(self):